-Demos:

*added ImGUI styles
 *added new assets (fonts, shaders)
 *added cimgui.dll
 *added imports for bindbc-sdl (for WASM)
 *added simple demo
 *added demo launcher
 *added snake demo
 *impoved demo utils
 *added cimgui.bc library for WASM
-improved wasm build script
-small change in vector

demos/.gitignore

@@ -9,4 +9,5 @@
 !assets/**
 !external/**/*.d
 !.gitignore
-!compile_wasm.py
+!compile_wasm.py
+!cimgui.bc

demos/assets/shaders/base.fp

@@ -0,0 +1,42 @@
+precision mediump int;
+precision mediump float;
+precision lowp sampler2D;
+precision lowp samplerCube;
+
+#ifdef GLES
+	#if __VERSION__ >290
+		in mediump vec2 uv;
+	#else
+		varying mediump vec2 uv;
+	#endif
+#else
+	#if __VERSION__ > 320
+		in vec2 uv;
+	#else
+		varying vec2 uv;
+	#endif
+#endif
+
+//layout(binding = 0)uniform sampler2D tex;
+
+uniform sampler2D tex;
+
+//layout(location = 0) out vec4 outColor;
+
+void main() {
+	
+	#ifdef GLES
+		#if __VERSION__ >290
+			gl_FragColor  = texture(tex,uv);
+		#else
+			gl_FragColor  = texture2D(tex,uv);
+		#endif
+	#else
+		#if __VERSION__ > 320
+			gl_FragColor  = texture(tex,uv);
+		#else
+			gl_FragColor  = texture2D(tex,uv);
+		#endif
+	#endif
+	if(gl_FragColor.a < 0.01)discard;
+}

demos/assets/shaders/base.vp

@@ -0,0 +1,55 @@
+precision highp float;
+precision highp int;
+precision lowp sampler2D;
+precision lowp samplerCube;
+
+#ifdef GLES
+	#if __VERSION__ >290
+		layout(location = 0) uniform vec4 matrix_1;
+		layout(location = 1) uniform vec4 matrix_2;
+		layout(location = 2) uniform vec4 uv_transform;
+		
+		layout(location = 0) in vec2 positions;
+		layout(location = 1) in vec2 tex_coords;
+		
+		out mediump vec2 uv;
+	#else
+		uniform vec4 matrix_1;
+		uniform vec4 matrix_2;
+		uniform vec4 uv_transform;
+		
+		attribute vec2 positions;
+		attribute vec2 tex_coords;
+		
+		varying mediump vec2 uv;
+	#endif
+#else
+	#if __VERSION__ > 320
+		layout(location = 0) uniform vec4 matrix_1;
+		layout(location = 1) uniform vec4 matrix_2;
+		layout(location = 2) uniform vec4 uv_transform;
+		
+		layout(location = 0) in vec2 positions;
+		layout(location = 1) in vec2 tex_coords;
+		
+		out vec2 uv;
+	#else
+		uniform vec4 matrix_1;
+		uniform vec4 matrix_2;
+		uniform vec4 uv_transform;
+		
+		attribute vec2 positions;
+		attribute vec2 tex_coords;
+		
+		varying vec2 uv;
+	#endif
+#endif
+
+void main() {
+	
+	vec3 position = mat3(matrix_1.x,matrix_1.y,0,matrix_1.z,matrix_1.w,0,matrix_2.xy,1) * vec3(positions,1.0);
+	uv = tex_coords * uv_transform.zw + uv_transform.xy;
+	
+	gl_Position = vec4(position.xy,0,1.0);
+	
+}

demos/compile_wasm.py

@@ -36,8 +36,8 @@ clean = 0
 demo = 0
 sources = ['tests', 'source']
 emc_flags = '-s USE_SDL=2 -s USE_SDL_IMAGE=2 -s SDL2_IMAGE_FORMATS="[\'png\']" --preload-file assets '
-ldc_flags = '--d-version=SDL_209 --d-version=BindSDL_Static --d-version=BindSDL_Image '
+ldc_flags = '--d-version=SDL_209 --d-version=BindSDL_Static --d-version=BindSDL_Image --d-version=MM_USE_POSIX_THREADS '
-import_paths = ['external/imports', '../source', 'utils/source']
+import_paths = ['external/sources', 'external/imports', 'external/wasm_imports', '../source', 'utils/source', 'simple/source']
 
 for arg in sys.argv[1:]:
     if(arg == '-release'):
@@ -74,18 +74,24 @@ for arg in sys.argv[1:]:
         print('unknown argument: ' + arg)
         exit()
     
-compile(['external/imports/bindbc/sdl'], 'bindbc-sdl.bc')
+compile(['external/wasm_imports/bindbc/sdl'], 'bindbc-sdl.bc')
 compile(['utils/source'], 'utils.bc')
-compile(['simple/source'], 'demo.bc')
+compile(['external/sources/mmutils'], 'mmutils.bc')
+compile(['external/sources/glad'], 'glad.bc')
+compile(['source'], 'demo.bc')
 
 if clean or os.path.exists('../ecs.bc') == 0 or os.path.isfile('../ecs.bc') == 0:
     compile(['../source'], '../ecs.bc')
   
-emcc_cmd = 'emcc -v ' + shared_flags + emc_flags + '-s ALLOW_MEMORY_GROWTH=1 -s MALLOC=dlmalloc -s WASM=1 -o index.html '
+emcc_cmd = 'emcc -v ' + shared_flags + emc_flags + '-s ALLOW_MEMORY_GROWTH=1 -s MALLOC=dlmalloc -s FULL_ES2=1 -s WASM=1 -o index.html '
 
 emcc_cmd += '../ecs.bc '
 emcc_cmd += 'utils.bc '
 emcc_cmd += 'bindbc-sdl.bc '
+emcc_cmd += 'glad.bc '
+emcc_cmd += 'cimgui.bc '
+emcc_cmd += 'nuklear.bc '
+emcc_cmd += 'mmutils.bc '
 emcc_cmd += 'demo.bc '
 
 print emcc_cmd

demos/dub.json

@@ -1,29 +1,21 @@
 {
-	"name": "simple",
+	"name": "demo",
 	"authors": [
 		"Michał Masiukiewicz", "Dawid Masiukiewicz"
 	],
-	"targetPath": "..",
 	"description": "Dynamic Entity Component System simple example",
 	"copyright": "Copyright © 2018-2019, Michał Masiukiewicz, Dawid Masiukiewicz",
 	"license": "BSD 3-clause",
-	"sourcePaths" : ["source\/"],
-	"dflags-posix-ldc": [
-		"-defaultlib=phobos2-ldc,druntime-ldc"
-	],
-	"libs-windows-x86_64": ["../libs/windows/x64/SDL2","../libs/windows/x64/SDL2main","../libs/windows/x64/SDL2_Image"],
-	"dflagss": [
-		"-betterC"
-	],
 	"dependencies": {
-		"bindbc-sdl":"0.13.0",
+		"ecs_utils":{"path":"utils/"}
-		"ecs":{"path":"../../"},
-		"ecs_utils":{"path":"../utils/"}
 	},
-	"versions": [
+	"sourcePaths": [
-		"SDL_2010",
+		"source"
-		"BindSDL_Image"
 	],
+	"importPaths": [
+		"source"
+	],
+	"libs-windows-x86_64": ["libs/windows/x64/SDL2","libs/windows/x64/SDL2_Image","libs/windows/x64/cimgui"],
 	"configurations" : [
 		{
 			"name" : "default",
@@ -41,7 +33,7 @@
 			],
 			"subConfigurations": 
 			{
-				"bindbc-sdl": "staticBC",
+				"bindbc-sdl":"staticBC",
 				"ecs_utils":"betterC",
 				"ecs":"library-betterC"		
 			}

demos/external/sources/glad/gl/all.d

@@ -0,0 +1,28 @@
+/*
+
+    OpenGL, OpenGL ES loader generated by glad 0.1.33 on Fri Nov  8 17:14:30 2019.
+
+    Language/Generator: D
+    Specification: gl
+    APIs: gl=3.3, gles2=3.0
+    Profile: compatibility
+    Extensions:
+        
+    Loader: True
+    Local files: False
+    Omit khrplatform: False
+    Reproducible: False
+
+    Commandline:
+        --profile="compatibility" --api="gl=3.3,gles2=3.0" --generator="d" --spec="gl" --extensions=""
+    Online:
+        https://glad.dav1d.de/#profile=compatibility&language=d&specification=gl&loader=on&api=gl%3D3.3&api=gles2%3D3.0
+*/
+
+module glad.gl.all;
+
+
+public import glad.gl.funcs;
+public import glad.gl.ext;
+public import glad.gl.enums;
+public import glad.gl.types;

demos/external/sources/glad/gl/ext.d

@@ -0,0 +1,10 @@
+module glad.gl.ext;
+
+
+private import glad.gl.types;
+private import glad.gl.enums;
+private import glad.gl.funcs;
+nothrow @nogc extern(System) {
+}
+__gshared {
+}

demos/external/sources/glad/gl/gl.d

@@ -0,0 +1,404 @@
+module glad.gl.gl;
+
+
+public import glad.gl.types;
+public import glad.gl.funcs :
+glCopyTexImage1D, glVertexAttribI3ui, glWindowPos2s, glWindowPos2i, glWindowPos2f, 
+glWindowPos2d, glVertex2fv, glColor4ub, glIndexi, glFramebufferRenderbuffer, 
+glRectdv, glCompressedTexSubImage3D, glEvalCoord2d, glEvalCoord2f, glIndexd, 
+glVertexAttrib1sv, glIndexf, glBindSampler, glLineWidth, glColorP3uiv, 
+glGetIntegeri_v, glGetMapfv, glIndexs, glCompileShader, glGetTransformFeedbackVarying, 
+glVertex3sv, glIndexfv, glFogiv, glStencilMaskSeparate, glRasterPos2fv, 
+glLightModeliv, glRectd, glSecondaryColor3fv, glMultiTexCoordP3ui, glFogfv, 
+glVertexP4ui, glEnablei, glVertex4iv, glEvalCoord1fv, glWindowPos2sv, 
+glVertexAttribP4ui, glCreateShader, glIsBuffer, glGetMultisamplefv, glGenRenderbuffers, 
+glCopyTexSubImage2D, glCompressedTexImage2D, glVertexAttrib1f, glBlendFuncSeparate, glVertex4fv, 
+glDrawBuffers, glVertexAttrib1s, glTexCoord2fv, glSampleMaski, glVertexP2ui, 
+glTexCoord1i, glTexCoord4fv, glUniformMatrix3x2fv, glPointSize, glVertexAttrib2dv, 
+glDeleteProgram, glColor4bv, glRasterPos2f, glRasterPos2d, glLoadIdentity, 
+glRasterPos2i, glUniformMatrix4x3fv, glColor3b, glClearBufferfv, glEdgeFlag, 
+glFogCoordf, glVertex3d, glVertex3f, glVertex3i, glColor3i, 
+glUniform3f, glVertexAttrib4ubv, glColor3s, glVertex3s, glTexCoordP2ui, 
+glColorMaski, glEnableClientState, glClearBufferfi, glTexCoord1iv, glMultiTexCoord1iv, 
+glMultiTexCoordP2ui, glGetSamplerParameterIiv, glGetFragDataIndex, glRasterPos4i, glVertex2iv, 
+glColor3sv, glGetVertexAttribdv, glUniformMatrix3x4fv, glNormalPointer, glTexCoordP3uiv, 
+glVertex4sv, glPassThrough, glMultiTexCoordP4ui, glFogi, glBegin, 
+glEvalCoord2dv, glColor3ubv, glVertexPointer, glScaled, glDeleteFramebuffers, 
+glDrawArrays, glUniform1ui, glMultiTexCoord1d, glMultiTexCoord1f, glLightfv, 
+glClear, glMultiTexCoord1i, glGetActiveUniformName, glMultiTexCoord1s, glStencilOp, 
+glTexCoord1s, glFramebufferTexture2D, glGetFramebufferAttachmentParameteriv, glTranslatef, glVertexAttrib4Nub, 
+glTranslated, glTexCoord3sv, glGetFragDataLocation, glTexImage1D, glTexParameteriv, 
+glCopyPixels, glSecondaryColor3bv, glGetMaterialfv, glGetTexImage, glFogCoordfv, 
+glVertexAttrib4iv, glPixelMapuiv, glColor4ubv, glGetQueryObjecti64v, glGenFramebuffers, 
+glIndexsv, glGetAttachedShaders, glIsRenderbuffer, glVertex3iv, glBitmap, 
+glMateriali, glIsVertexArray, glDisableVertexAttribArray, glGetQueryiv, glTexCoord4f, 
+glTexCoord4d, glGetSamplerParameterfv, glTexCoord4i, glMaterialf, glTexCoord4s, 
+glGetUniformIndices, glIsShader, glFeedbackBuffer, glVertexAttribI4ubv, glVertex3dv, 
+glPointParameteriv, glDisable, glEnable, glGetActiveUniformsiv, glColor4fv, 
+glTexCoord1fv, glTexCoord2sv, glVertexAttrib4dv, glMultiTexCoord1dv, glGetMapiv, 
+glTexCoord3fv, glSecondaryColor3usv, glMultiTexCoordP3uiv, glVertexAttribP3ui, glGetPointerv, 
+glPolygonOffset, glGetUniformuiv, glNormal3fv, glDepthRange, glFrustum, 
+glMultiTexCoord2f, glDrawBuffer, glPushMatrix, glRasterPos3fv, glOrtho, 
+glDrawElementsInstanced, glWindowPos3sv, glVertexAttrib4d, glClearIndex, glMap1d, 
+glMap1f, glFlush, glGetRenderbufferParameteriv, glIndexiv, glRasterPos3sv, 
+glGetVertexAttribPointerv, glPixelZoom, glDeleteBuffers, glFenceSync, glDeleteVertexArrays, 
+glColorP3ui, glVertexAttrib3sv, glVertexAttrib4s, glGetTexLevelParameteriv, glLighti, 
+glMultiTexCoordP4uiv, glLightf, glGetAttribLocation, glStencilFuncSeparate, glGenSamplers, 
+glClampColor, glUniform4iv, glClearStencil, glVertexAttrib2sv, glMultiTexCoord3fv, 
+glGetPixelMapuiv, glGenTextures, glTexCoord4iv, glGetTexParameterIuiv, glIndexPointer, 
+glVertexAttrib4Nbv, glGetQueryObjectiv, glIsSync, glVertex2f, glVertex2d, 
+glDeleteRenderbuffers, glUniform2i, glMapGrid2d, glMapGrid2f, glShaderSource, 
+glVertex2i, glVertexAttribPointer, glFramebufferTextureLayer, glVertex2s, glNormal3bv, 
+glFlushMappedBufferRange, glSecondaryColor3sv, glPointParameteri, glWindowPos2iv, glGenQueries, 
+glGetPixelMapfv, glTexEnvf, glVertexAttribP1ui, glTexSubImage3D, glGetInteger64i_v, 
+glFogCoordd, glDeleteSamplers, glCopyTexImage2D, glTexEnvi, glBlitFramebuffer, 
+glIsEnabledi, glSecondaryColorP3ui, glBindFragDataLocationIndexed, glMultiTexCoord2dv, glUniform2iv, 
+glUniform4uiv, glMatrixMode, glMultiTexCoord2s, glColor3uiv, glMultiTexCoord2i, 
+glFramebufferTexture1D, glGetShaderiv, glMultiTexCoord2d, glMultiTexCoord4sv, glBindFragDataLocation, 
+glPrioritizeTextures, glCallList, glSecondaryColor3ubv, glGetDoublev, glMultiTexCoord3iv, 
+glVertexAttrib1d, glLightModelf, glVertexAttrib1fv, glVertex2sv, glLightModeli, 
+glBindBufferRange, glWindowPos3iv, glMultiTexCoordP1uiv, glUniform3fv, glCallLists, 
+glMapBuffer, glSecondaryColor3d, glTexCoord3i, glMultiTexCoord4fv, glRasterPos3i, 
+glSecondaryColor3b, glRasterPos3d, glRasterPos3f, glCompressedTexImage3D, glTexCoord3f, 
+glDeleteSync, glMultiTexCoordP1ui, glGetVertexAttribiv, glSecondaryColor3s, glVertexAttrib3fv, 
+glTexCoord3s, glUniform3iv, glRasterPos3s, glPolygonMode, glGetActiveUniformBlockiv, 
+glAreTexturesResident, glIsList, glRasterPos4sv, glCopyTexSubImage3D, glColor4s, 
+glUseProgram, glLineStipple, glSamplerParameterIuiv, glMultiTexCoord1sv, glGetProgramInfoLog, 
+glMultiTexCoord2iv, glTexCoord1sv, glBindVertexArray, glColor4b, glSecondaryColor3f, 
+glColor4f, glColor4d, glColor4i, glMultiDrawElementsBaseVertex, glUniform4fv, 
+glRasterPos3iv, glVertex2dv, glTexCoord4sv, glUniform2uiv, glCompressedTexSubImage1D, 
+glFinish, glClipPlane, glDeleteShader, glRasterPos2s, glGetMapdv, 
+glVertexAttrib4Nsv, glTexGendv, glViewport, glBindBufferBase, glVertexP3uiv, 
+glTransformFeedbackVaryings, glIndexdv, glTexCoord3d, glTexCoord3iv, glVertexAttribI3i, 
+glClearDepth, glVertexAttribI4usv, glTexParameterf, glTexParameteri, glGetShaderSource, 
+glTexBuffer, glPixelStorei, glValidateProgram, glPixelStoref, glSecondaryColor3iv, 
+glRasterPos4fv, glEvalCoord1dv, glMultiTexCoordP2uiv, glRecti, glMultiDrawElements, 
+glRectf, glColor4ui, glNormal3sv, glGetFloatv, glColor4us, 
+glVertexAttribP1uiv, glLinkProgram, glTexSubImage1D, glBindTexture, glRects, 
+glTexCoord2dv, glRasterPos4iv, glGetString, glVertexAttribP2uiv, glEdgeFlagv, 
+glDetachShader, glScalef, glEndQuery, glSecondaryColor3uiv, glEdgeFlagPointer, 
+glVertexAttrib4Nuiv, glVertexAttribI2ui, glPopAttrib, glDeleteTextures, glStencilOpSeparate, 
+glDeleteQueries, glNormalP3uiv, glVertexAttrib4f, glRenderbufferStorage, glInitNames, 
+glColor3dv, glPixelMapfv, glGetTexParameteriv, glWaitSync, glBeginConditionalRender, 
+glDrawElementsBaseVertex, glSampleCoverage, glSamplerParameteri, glSamplerParameterf, glUniform1f, 
+glGetVertexAttribfv, glRenderMode, glGetCompressedTexImage, glWindowPos2dv, glUniform1i, 
+glGetActiveAttrib, glUniform3i, glPixelTransferi, glTexSubImage2D, glGetUniformiv, 
+glLogicOp, glEvalPoint2, glPixelTransferf, glUniform4ui, glColor3f, 
+glBindFramebuffer, glGetTexEnvfv, glRectfv, glCullFace, glGetLightfv, 
+glTexGenf, glTexGend, glTexGeni, glMultiTexCoord3s, glVertexAttribI2uiv, 
+glMultiTexCoord3i, glMultiTexCoord3f, glMultiTexCoord3d, glAttachShader, glFogCoorddv, 
+glGetTexGenfv, glQueryCounter, glFogCoordPointer, glProvokingVertex, glRasterPos4dv, 
+glTexGeniv, glDrawElements, glColorMaterial, glSecondaryColor3dv, glClientActiveTexture, 
+glVertexAttribI4sv, glTexCoord2iv, glUniform1iv, glGetBufferParameteriv, glReadBuffer, 
+glTexParameterIuiv, glDrawArraysInstanced, glGenerateMipmap, glWindowPos3fv, glLightModelfv, 
+glSamplerParameteriv, glDeleteLists, glGetClipPlane, glVertexAttrib3f, glTexCoord2d, 
+glVertexAttrib3d, glTexCoord2f, glRasterPos2dv, glIndexubv, glUnmapBuffer, 
+glTexCoord2i, glRasterPos4d, glRasterPos4f, glVertexAttrib3s, glTexCoord2s, 
+glBindRenderbuffer, glVertex3fv, glTexCoord4dv, glMaterialiv, glVertexAttribP4uiv, 
+glIsProgram, glPointParameterfv, glVertex4s, glPopMatrix, glVertexAttrib4fv, 
+glNormal3dv, glUniform4i, glActiveTexture, glEnableVertexAttribArray, glRotated, 
+glRotatef, glVertex4i, glArrayElement, glReadPixels, glVertexAttribI3iv, 
+glStencilMask, glUniform4f, glRenderbufferStorageMultisample, glColor3d, glGenVertexArrays, 
+glShadeModel, glMapGrid1d, glGetUniformfv, glMapGrid1f, glDrawPixels, 
+glDisableClientState, glMultiTexCoord3sv, glDrawElementsInstancedBaseVertex, glSecondaryColorPointer, glAlphaFunc, 
+glMultiTexCoord4iv, glTexEnvfv, glStencilFunc, glTexCoord3dv, glUniformBlockBinding, 
+glColor4uiv, glRectiv, glColorP4ui, glRasterPos3dv, glEvalMesh2, 
+glEvalMesh1, glTexCoordPointer, glLoadMatrixf, glVertexAttribI4iv, glEvalCoord2fv, 
+glGetShaderInfoLog, glLoadTransposeMatrixd, glLoadTransposeMatrixf, glVertexAttribI4i, glRasterPos2iv, 
+glGetBufferSubData, glTexEnviv, glBlendEquationSeparate, glVertexAttribI1ui, glGenBuffers, 
+glSelectBuffer, glTexCoordP1uiv, glPushAttrib, glVertexAttribIPointer, glBlendFunc, 
+glCreateProgram, glTexImage3D, glIsFramebuffer, glLightiv, glPrimitiveRestartIndex, 
+glTexGenfv, glTexCoord1dv, glEnd, glGetInteger64v, glScissor, 
+glTexCoordP4uiv, glGetBooleanv, glPushName, glMaterialfv, glIndexub, 
+glVertexP2uiv, glUniform3uiv, glMultTransposeMatrixf, glMultTransposeMatrixd, glClearColor, 
+glVertexAttrib4uiv, glPolygonStipple, glVertexAttrib4Niv, glClearBufferiv, glGetBufferParameteri64v, 
+glColorP4uiv, glBlendColor, glWindowPos3d, glGetStringi, glColor4iv, 
+glUniform3ui, glSecondaryColor3us, glVertexAttribI4uiv, glVertexAttrib4bv, glUniform2fv, 
+glSecondaryColor3ub, glSecondaryColor3ui, glMultiTexCoord1fv, glGetSamplerParameterIuiv, glNormal3i, 
+glTexCoordP3ui, glNormal3iv, glWindowPos3s, glPointParameterf, glColor3us, 
+glWindowPos3i, glUniformMatrix2x3fv, glWindowPos3f, glGetVertexAttribIuiv, glMultiTexCoord4s, 
+glVertexAttrib4Nusv, glGetLightiv, glDepthFunc, glCompressedTexSubImage2D, glListBase, 
+glMultiTexCoord4f, glColor3ub, glMultiTexCoord4d, glVertexAttribI4bv, glGetTexParameterfv, 
+glColor3ui, glMultiTexCoord4i, glGetPolygonStipple, glClientWaitSync, glVertexAttribI4ui, 
+glPixelMapusv, glColorMask, glTexParameterIiv, glBlendEquation, glGetUniformLocation, 
+glGetTexGeniv, glRasterPos4s, glEndTransformFeedback, glVertexAttrib4usv, glTexImage2DMultisample, 
+glColor4sv, glPopClientAttrib, glColor4dv, glBeginTransformFeedback, glFogf, 
+glVertexAttribI1iv, glIsSampler, glVertexP3ui, glVertexAttribDivisor, glColor3iv, 
+glCompressedTexImage1D, glCopyTexSubImage1D, glDrawRangeElementsBaseVertex, glCheckFramebufferStatus, glTexCoord1d, 
+glTexCoord1f, glEndConditionalRender, glUniform1uiv, glBindAttribLocation, glUniformMatrix4x2fv, 
+glMultiTexCoord2sv, glVertexAttrib1dv, glDrawRangeElements, glGetQueryObjectuiv, glSamplerParameterIiv, 
+glBufferSubData, glVertexAttribI2i, glGenLists, glColor3bv, glMapBufferRange, 
+glFramebufferTexture, glGetTexGendv, glMultiDrawArrays, glEndList, glVertexP4uiv, 
+glUniform2ui, glVertexAttribI2iv, glColor3usv, glWindowPos2fv, glDisablei, 
+glIndexMask, glPushClientAttrib, glVertex4dv, glTexCoordP4ui, glGetActiveUniformBlockName, 
+glVertexAttribI3uiv, glClearAccum, glGetSynciv, glTexCoordP2uiv, glUniform2f, 
+glBeginQuery, glUniformMatrix4fv, glBindBuffer, glMap2d, glMap2f, 
+glRasterPos2sv, glUniformMatrix2fv, glUniformMatrix2x4fv, glBufferData, glEvalPoint1, 
+glGetTexParameterIiv, glIsEnabled, glTexCoordP1ui, glGetError, glGetTexEnviv, 
+glGetProgramiv, glVertexAttribP2ui, glNewList, glSecondaryColor3i, glMultiTexCoord2fv, 
+glNormalP3ui, glEvalCoord1d, glGetTexLevelParameterfv, glEvalCoord1f, glVertexAttribI1i, 
+glVertex4d, glVertexAttribP3uiv, glGetPixelMapusv, glSecondaryColorP3uiv, glGetIntegerv, 
+glAccum, glGetBufferPointerv, glGetVertexAttribIiv, glFramebufferTexture3D, glVertexAttrib2fv, 
+glIsQuery, glVertexAttrib4sv, glWindowPos3dv, glTexImage2D, glLoadName, 
+glSamplerParameterfv, glMultMatrixd, glMultMatrixf, glIsTexture, glGetMaterialiv, 
+glUniform1fv, glVertexAttrib4Nubv, glLoadMatrixd, glTexParameterfv, glUniformMatrix3fv, 
+glVertex4f, glRectsv, glColor4usv, glNormal3s, glInterleavedArrays, 
+glHint, glNormal3f, glNormal3d, glNormal3b, glMultiTexCoord4dv, 
+glGetSamplerParameteriv, glPopName, glCopyBufferSubData, glVertexAttribI1uiv, glVertexAttrib2d, 
+glVertexAttrib2f, glVertexAttrib3dv, glGetQueryObjectui64v, glDepthMask, glVertexAttrib2s, 
+glColor3fv, glTexImage3DMultisample, glGetUniformBlockIndex, glMultiTexCoord3dv, glGetActiveUniform, 
+glColorPointer, glFrontFace, glGetBooleani_v, glClearBufferuiv;
+
+public import glad.gl.enums :
+GL_INDEX_CLEAR_VALUE, GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER, GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE, GL_FOG_INDEX, GL_ALPHA_TEST_FUNC, 
+GL_SOURCE1_ALPHA, GL_NORMAL_MAP, GL_DITHER, GL_QUERY_RESULT, GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE, 
+GL_R16_SNORM, GL_FOG_COORD_ARRAY, GL_FLOAT, GL_PROXY_TEXTURE_2D_MULTISAMPLE, GL_TEXTURE_MAX_LOD, 
+GL_RGB16_SNORM, GL_SAMPLER_2D_RECT, GL_RGB9_E5, GL_MAX_VERTEX_UNIFORM_BLOCKS, GL_TEXTURE_COMPRESSED, 
+GL_T2F_C4UB_V3F, GL_EDGE_FLAG_ARRAY_POINTER, GL_PROXY_TEXTURE_3D, GL_MAX_LIST_NESTING, GL_COLOR_ATTACHMENT22, 
+GL_SOURCE0_ALPHA, GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_BYTE, GL_TIMEOUT_IGNORED, 
+GL_COLOR_ARRAY, GL_ZOOM_Y, GL_ZOOM_X, GL_RENDERBUFFER_SAMPLES, GL_HINT_BIT, 
+GL_COLOR_CLEAR_VALUE, GL_LINEAR_MIPMAP_LINEAR, GL_DEPTH_WRITEMASK, GL_TEXTURE_GEN_MODE, GL_3D_COLOR_TEXTURE, 
+GL_COLOR_ARRAY_POINTER, GL_TEXTURE_DEPTH_SIZE, GL_FLOAT_MAT3x2, GL_PIXEL_MAP_G_TO_G, GL_RENDER, 
+GL_MAX_TEXTURE_COORDS, GL_FLOAT_MAT3x4, GL_COLOR_ATTACHMENT28, GL_TEXTURE_BINDING_2D_MULTISAMPLE, GL_COLOR_ATTACHMENT24, 
+GL_COLOR_ATTACHMENT25, GL_COLOR_ATTACHMENT26, GL_COLOR_ATTACHMENT27, GL_COLOR_ATTACHMENT20, GL_COLOR_ATTACHMENT21, 
+GL_COMPRESSED_RGBA, GL_COLOR_ATTACHMENT23, GL_CLIENT_ATTRIB_STACK_DEPTH, GL_UNSIGNED_SHORT_5_5_5_1, GL_TEXTURE_COMPONENTS, 
+GL_QUERY_NO_WAIT, GL_PROVOKING_VERTEX, GL_SIGNED_NORMALIZED, GL_CURRENT_RASTER_TEXTURE_COORDS, GL_EXP, 
+GL_LINE_STRIP_ADJACENCY, GL_POINT_SIZE, GL_TEXTURE_COMPARE_FUNC, GL_TRANSFORM_FEEDBACK_BUFFER_MODE, GL_BITMAP_TOKEN, 
+GL_RGB10, GL_RGB16, GL_POLYGON_OFFSET_FILL, GL_LINE_TOKEN, GL_DOUBLEBUFFER, 
+GL_MAX_CLIP_PLANES, GL_FOG_COORDINATE_ARRAY_STRIDE, GL_RGB_INTEGER, GL_COMPILE_AND_EXECUTE, GL_MULT, 
+GL_STENCIL_CLEAR_VALUE, GL_GREEN_BITS, GL_SHADING_LANGUAGE_VERSION, GL_UNSIGNED_SHORT_1_5_5_5_REV, GL_SRC2_RGB, 
+GL_FRAGMENT_SHADER, GL_UNSIGNED_INT_2_10_10_10_REV, GL_INDEX_ARRAY_TYPE, GL_FRAGMENT_SHADER_DERIVATIVE_HINT, GL_TEXTURE_DEPTH, 
+GL_VIEWPORT, GL_DRAW_BUFFER6, GL_DRAW_BUFFER7, GL_DRAW_BUFFER4, GL_DRAW_BUFFER5, 
+GL_DRAW_BUFFER2, GL_DRAW_BUFFER3, GL_DRAW_BUFFER0, GL_DRAW_BUFFER1, GL_LIGHT1, 
+GL_LIGHT0, GL_LIGHT3, GL_LIGHT2, GL_COPY, GL_LIGHT4, 
+GL_BLEND_SRC, GL_LIGHT6, GL_MAP_STENCIL, GL_QUADRATIC_ATTENUATION, GL_TEXTURE_CUBE_MAP_SEAMLESS, 
+GL_TEXTURE_RECTANGLE, GL_FILL, GL_SRC_COLOR, GL_SAMPLER_BINDING, GL_DEPTH24_STENCIL8, 
+GL_SAMPLE_BUFFERS, GL_RGBA_INTEGER, GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, GL_COLOR_INDEX, GL_EXTENSIONS, 
+GL_MAP2_NORMAL, GL_BUFFER_SIZE, GL_PASS_THROUGH_TOKEN, GL_MAX_EVAL_ORDER, GL_UPPER_LEFT, 
+GL_TEXTURE_COMPARE_MODE, GL_ANY_SAMPLES_PASSED, GL_LAST_VERTEX_CONVENTION, GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE, GL_DEPTH_BUFFER_BIT, 
+GL_STENCIL_BACK_PASS_DEPTH_FAIL, GL_UNSIGNALED, GL_UNIFORM_BUFFER, GL_MAP_WRITE_BIT, GL_SHADE_MODEL, 
+GL_COMPRESSED_SLUMINANCE, GL_CCW, GL_RGB32I, GL_DEPTH_COMPONENT24, GL_INDEX_SHIFT, 
+GL_VERTEX_ATTRIB_ARRAY_INTEGER, GL_LIST_BIT, GL_ONE_MINUS_SRC1_COLOR, GL_STREAM_READ, GL_LINEAR, 
+GL_R32F, GL_VERTEX_ARRAY, GL_OR_REVERSE, GL_LUMINANCE12_ALPHA4, GL_LOGIC_OP, 
+GL_VERTEX_ARRAY_BUFFER_BINDING, GL_PIXEL_MAP_R_TO_R, GL_FOG_COORDINATE_SOURCE, GL_UNSIGNED_SHORT_5_6_5_REV, GL_TEXTURE_BORDER, 
+GL_GREATER, GL_MAX_GEOMETRY_UNIFORM_COMPONENTS, GL_VERTEX_ATTRIB_ARRAY_ENABLED, GL_MAX_TEXTURE_IMAGE_UNITS, GL_RGB32F, 
+GL_FLOAT_MAT2, GL_FLOAT_MAT3, GL_FRONT_FACE, GL_DEPTH, GL_REPLACE, 
+GL_VERTEX_ATTRIB_ARRAY_STRIDE, GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE, GL_OPERAND1_RGB, GL_RGBA32UI, GL_RG8I, 
+GL_RGBA8I, GL_TEXTURE_FILTER_CONTROL, GL_ACCUM_CLEAR_VALUE, GL_SRC1_ALPHA, GL_RG32F, 
+GL_R3_G3_B2, GL_ALPHA_BIAS, GL_RENDERBUFFER_BINDING, GL_TEXTURE_STACK_DEPTH, GL_TEXTURE_LUMINANCE_SIZE, 
+GL_TEXTURE_MIN_LOD, GL_FOG_COORDINATE_ARRAY, GL_BLEND, GL_FEEDBACK_BUFFER_TYPE, GL_MAP1_TEXTURE_COORD_3, 
+GL_R16UI, GL_MAP1_TEXTURE_COORD_1, GL_UNSIGNED_SHORT, GL_MIN, GL_MAP1_TEXTURE_COORD_4, 
+GL_COMPRESSED_SRGB_ALPHA, GL_ONE_MINUS_SRC_COLOR, GL_TEXTURE, GL_INTENSITY12, GL_MAX_PROJECTION_STACK_DEPTH, 
+GL_RGB_SCALE, GL_MAX_CLIP_DISTANCES, GL_PERSPECTIVE_CORRECTION_HINT, GL_LIST_MODE, GL_TIMESTAMP, 
+GL_ACTIVE_UNIFORMS, GL_VERTEX_PROGRAM_POINT_SIZE, GL_MAX_COLOR_ATTACHMENTS, GL_TEXTURE_BINDING_CUBE_MAP, GL_OPERAND2_RGB, 
+GL_R, GL_SRGB_ALPHA, GL_S, GL_NUM_COMPRESSED_TEXTURE_FORMATS, GL_PACK_SKIP_ROWS, 
+GL_T, GL_MAX_TEXTURE_UNITS, GL_SLUMINANCE8, GL_MAX_TEXTURE_BUFFER_SIZE, GL_MAP1_COLOR_4, 
+GL_GEOMETRY_SHADER, GL_R8I, GL_TEXTURE_MAX_LEVEL, GL_TEXTURE_CUBE_MAP_POSITIVE_Y, GL_BLEND_COLOR, 
+GL_ALPHA_BITS, GL_LINE_STIPPLE, GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, GL_ONE_MINUS_CONSTANT_ALPHA, GL_NEAREST_MIPMAP_LINEAR, 
+GL_ALPHA8, GL_BLEND_EQUATION, GL_SRC2_ALPHA, GL_UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER, GL_ALPHA4, 
+GL_MAX_GEOMETRY_OUTPUT_COMPONENTS, GL_FOG_END, GL_SAMPLER_1D, GL_LINE, GL_STENCIL_BITS, 
+GL_FOG_COORDINATE_ARRAY_TYPE, GL_SAMPLES_PASSED, GL_RENDERBUFFER_RED_SIZE, GL_COMPRESSED_SLUMINANCE_ALPHA, GL_BLUE_INTEGER, 
+GL_DYNAMIC_COPY, GL_CURRENT_FOG_COORD, GL_SYNC_FLAGS, GL_RG32I, GL_UNSIGNED_BYTE_2_3_3_REV, 
+GL_RENDERBUFFER_INTERNAL_FORMAT, GL_CLIENT_ACTIVE_TEXTURE, GL_TEXTURE_HEIGHT, GL_RGBA16I, GL_RGBA16F, 
+GL_OPERAND2_ALPHA, GL_SAMPLE_ALPHA_TO_COVERAGE, GL_FOG_DENSITY, GL_TEXTURE_FIXED_SAMPLE_LOCATIONS, GL_CONSTANT_ATTENUATION, 
+GL_RED, GL_DEPTH_BIAS, GL_EQUIV, GL_POLYGON_OFFSET_LINE, GL_FUNC_REVERSE_SUBTRACT, 
+GL_GREEN, GL_INVALID_OPERATION, GL_CLAMP_READ_COLOR, GL_RED_INTEGER, GL_TEXTURE_BINDING_BUFFER, 
+GL_COLOR_ATTACHMENT5, GL_COLOR_ATTACHMENT4, GL_MAP2_TEXTURE_COORD_2, GL_COLOR_ATTACHMENT6, GL_MAP2_TEXTURE_COORD_4, 
+GL_COLOR_ATTACHMENT0, GL_4_BYTES, GL_COLOR_ATTACHMENT2, GL_MAX_MODELVIEW_STACK_DEPTH, GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS, 
+GL_COLOR_ATTACHMENT9, GL_COLOR_ATTACHMENT8, GL_PACK_IMAGE_HEIGHT, GL_PIXEL_MAP_B_TO_B_SIZE, GL_BUFFER_USAGE, 
+GL_CULL_FACE_MODE, GL_UNSIGNED_INT_8_8_8_8_REV, GL_BOOL, GL_MAX_COMBINED_UNIFORM_BLOCKS, GL_3D_COLOR, 
+GL_GREEN_INTEGER, GL_DST_COLOR, GL_T2F_V3F, GL_UNSIGNED_INT, GL_OPERAND0_ALPHA, 
+GL_ALWAYS, GL_NOOP, GL_V3F, GL_POINT_SPRITE_COORD_ORIGIN, GL_POINT_SIZE_RANGE, 
+GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, GL_LUMINANCE16, GL_GREEN_BIAS, GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES, GL_LUMINANCE12, 
+GL_SAMPLER_2D_MULTISAMPLE_ARRAY, GL_SHADER_TYPE, GL_RG16_SNORM, GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE, GL_COLOR_ARRAY_TYPE, 
+GL_QUERY_COUNTER_BITS, GL_MODULATE, GL_RG_INTEGER, GL_DRAW_BUFFER10, GL_FOG_COORD_ARRAY_BUFFER_BINDING, 
+GL_TEXTURE_LUMINANCE_TYPE, GL_RENDERBUFFER_HEIGHT, GL_RG16UI, GL_INTERLEAVED_ATTRIBS, GL_TEXTURE_ALPHA_TYPE, 
+GL_COLOR_ATTACHMENT29, GL_MAP2_TEXTURE_COORD_1, GL_DRAW_BUFFER14, GL_FOG_COORD_ARRAY_STRIDE, GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS, 
+GL_MAP2_TEXTURE_COORD_3, GL_TEXTURE_BLUE_TYPE, GL_COLOR_ATTACHMENT1, GL_C4F_N3F_V3F, GL_COMBINE_RGB, 
+GL_STEREO, GL_ALREADY_SIGNALED, GL_T4F_V4F, GL_STREAM_COPY, GL_LIGHT_MODEL_LOCAL_VIEWER, 
+GL_SOURCE0_RGB, GL_EYE_PLANE, GL_TEXTURE_CUBE_MAP, GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY, GL_TEXTURE_2D_MULTISAMPLE_ARRAY, 
+GL_CLIP_PLANE1, GL_CLIP_PLANE0, GL_CLIP_PLANE3, GL_CLIP_PLANE2, GL_CLIP_PLANE5, 
+GL_CLIP_PLANE4, GL_ORDER, GL_NORMAL_ARRAY_TYPE, GL_TEXTURE_BUFFER, GL_TRANSFORM_FEEDBACK_BUFFER, 
+GL_LINE_STIPPLE_REPEAT, GL_POINTS, GL_LIGHTING_BIT, GL_SYNC_STATUS, GL_RENDERBUFFER_BLUE_SIZE, 
+GL_UNIFORM_NAME_LENGTH, GL_FASTEST, GL_LUMINANCE8, GL_LUMINANCE4, GL_POLYGON, 
+GL_NAND, GL_MAP1_INDEX, GL_LINE_WIDTH_GRANULARITY, GL_ADD_SIGNED, GL_MAX_3D_TEXTURE_SIZE, 
+GL_CLIENT_PIXEL_STORE_BIT, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_X, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, GL_DONT_CARE, 
+GL_POLYGON_BIT, GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING, GL_QUERY_WAIT, GL_MAP_FLUSH_EXPLICIT_BIT, GL_TEXTURE_COORD_ARRAY_SIZE, 
+GL_RED_SCALE, GL_SRGB8, GL_CURRENT_NORMAL, GL_COMPRESSED_SIGNED_RED_RGTC1, GL_FRAGMENT_DEPTH, 
+GL_UNIFORM_BLOCK_BINDING, GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, GL_SRC0_ALPHA, GL_LEQUAL, GL_PIXEL_MAP_A_TO_A_SIZE, 
+GL_TEXTURE_WIDTH, GL_ONE_MINUS_SRC1_ALPHA, GL_MAP_COLOR, GL_UNIFORM_SIZE, GL_POINT_SPRITE, 
+GL_FLOAT_MAT4x2, GL_SHADER_SOURCE_LENGTH, GL_DOT3_RGBA, GL_COMPRESSED_RG, GL_UNPACK_SWAP_BYTES, 
+GL_CURRENT_VERTEX_ATTRIB, GL_POLYGON_OFFSET_UNITS, GL_LUMINANCE6_ALPHA2, GL_MAX_COLOR_TEXTURE_SAMPLES, GL_COLOR_ATTACHMENT7, 
+GL_PRIMARY_COLOR, GL_C3F_V3F, GL_OUT_OF_MEMORY, GL_AUX_BUFFERS, GL_NORMAL_ARRAY_STRIDE, 
+GL_UNSIGNED_SHORT_4_4_4_4_REV, GL_SMOOTH, GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS, GL_GEOMETRY_OUTPUT_TYPE, GL_RASTERIZER_DISCARD, 
+GL_MAX_TEXTURE_LOD_BIAS, GL_CURRENT_TEXTURE_COORDS, GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER, GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE, GL_FRONT_RIGHT, 
+GL_EDGE_FLAG_ARRAY, GL_INT_SAMPLER_2D_MULTISAMPLE, GL_RETURN, GL_STENCIL_TEST, GL_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION, 
+GL_R11F_G11F_B10F, GL_LUMINANCE_ALPHA, GL_PIXEL_UNPACK_BUFFER_BINDING, GL_INVERT, GL_PROXY_TEXTURE_1D, 
+GL_COMPRESSED_INTENSITY, GL_TRANSFORM_FEEDBACK_VARYINGS, GL_DEPTH_COMPONENT32F, GL_TRIANGLE_FAN, GL_LIST_BASE, 
+GL_MAX_ELEMENTS_VERTICES, GL_CURRENT_COLOR, GL_INVALID_FRAMEBUFFER_OPERATION, GL_RGB12, GL_UNIFORM_BUFFER_SIZE, 
+GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING, GL_DEPTH32F_STENCIL8, GL_MAX_ARRAY_TEXTURE_LAYERS, GL_RED_BITS, GL_MAX_SERVER_WAIT_TIMEOUT, 
+GL_NOR, GL_FLAT, GL_PACK_ALIGNMENT, GL_PIXEL_MAP_S_TO_S, GL_UNPACK_LSB_FIRST, 
+GL_BGRA, GL_ACTIVE_UNIFORM_BLOCKS, GL_SOURCE1_RGB, GL_UNPACK_SKIP_IMAGES, GL_RGB16I, 
+GL_ACTIVE_TEXTURE, GL_TEXTURE_BASE_LEVEL, GL_RGB16F, GL_SMOOTH_LINE_WIDTH_RANGE, GL_ALPHA_INTEGER, 
+GL_GREEN_SCALE, GL_CLIP_DISTANCE7, GL_FOG_BIT, GL_TRANSPOSE_TEXTURE_MATRIX, GL_UNSIGNED_INT_SAMPLER_3D, 
+GL_SAMPLE_MASK, GL_INT_VEC4, GL_INT_VEC3, GL_INT_VEC2, GL_STENCIL_FAIL, 
+GL_CURRENT_FOG_COORDINATE, GL_CONDITION_SATISFIED, GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT, GL_FRAMEBUFFER_UNSUPPORTED, GL_RED_BIAS, 
+GL_DST_ALPHA, GL_SECONDARY_COLOR_ARRAY_POINTER, GL_R8, GL_RENDER_MODE, GL_EDGE_FLAG_ARRAY_BUFFER_BINDING, 
+GL_MAX_CUBE_MAP_TEXTURE_SIZE, GL_TEXTURE_1D_ARRAY, GL_RENDERBUFFER_WIDTH, GL_READ_FRAMEBUFFER_BINDING, GL_FRAMEBUFFER_ATTACHMENT_LAYERED, 
+GL_TEXTURE_BLUE_SIZE, GL_COORD_REPLACE, GL_RGBA2, GL_RGBA4, GL_MULTISAMPLE_BIT, 
+GL_FOG_COLOR, GL_DRAW_BUFFER11, GL_DRAW_BUFFER12, GL_DRAW_BUFFER13, GL_UNSIGNED_INT_10_10_10_2, 
+GL_DRAW_BUFFER15, GL_INFO_LOG_LENGTH, GL_R16F, GL_RENDERBUFFER_STENCIL_SIZE, GL_CONSTANT_ALPHA, 
+GL_RESCALE_NORMAL, GL_R16I, GL_POINT_SIZE_GRANULARITY, GL_STATIC_READ, GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER, 
+GL_COMPARE_R_TO_TEXTURE, GL_PREVIOUS, GL_MAP_READ_BIT, GL_SPOT_DIRECTION, GL_DEPTH_SCALE, 
+GL_STENCIL, GL_SAMPLE_MASK_VALUE, GL_LINE_BIT, GL_DIFFUSE, GL_MAX_RENDERBUFFER_SIZE, 
+GL_T2F_N3F_V3F, GL_TRANSFORM_BIT, GL_COLOR_ATTACHMENT30, GL_STENCIL_PASS_DEPTH_PASS, GL_INCR_WRAP, 
+GL_SOURCE2_RGB, GL_TEXTURE_GEN_T, GL_TEXTURE_GEN_S, GL_TEXTURE_GEN_R, GL_TEXTURE_GEN_Q, 
+GL_RENDERBUFFER_ALPHA_SIZE, GL_ALPHA12, GL_LIGHT_MODEL_TWO_SIDE, GL_ALPHA16, GL_DECR_WRAP, 
+GL_POLYGON_SMOOTH, GL_COMPILE, GL_SAMPLE_POSITION, GL_TRANSPOSE_MODELVIEW_MATRIX, GL_INCR, 
+GL_POINT_SIZE_MIN, GL_MAX_RECTANGLE_TEXTURE_SIZE, GL_RGBA12, GL_GENERATE_MIPMAP_HINT, GL_ALPHA_TEST_REF, 
+GL_RGBA16, GL_UNPACK_SKIP_ROWS, GL_MAP1_NORMAL, GL_SOURCE2_ALPHA, GL_DEPTH_CLAMP, 
+GL_POLYGON_STIPPLE_BIT, GL_BLEND_DST_ALPHA, GL_INT_SAMPLER_CUBE, GL_CURRENT_QUERY, GL_RGB5_A1, 
+GL_EXP2, GL_UNPACK_SKIP_PIXELS, GL_RGB16UI, GL_COPY_INVERTED, GL_TEXTURE_PRIORITY, 
+GL_MAX_GEOMETRY_INPUT_COMPONENTS, GL_LOWER_LEFT, GL_FOG_HINT, GL_TEXTURE_BINDING_1D, GL_PROJECTION_MATRIX, 
+GL_AUX0, GL_PIXEL_UNPACK_BUFFER, GL_LINEAR_MIPMAP_NEAREST, GL_POINT_DISTANCE_ATTENUATION, GL_TEXTURE_BUFFER_DATA_STORE_BINDING, 
+GL_RGB10_A2, GL_AMBIENT_AND_DIFFUSE, GL_ZERO, GL_ELEMENT_ARRAY_BUFFER, GL_CONTEXT_CORE_PROFILE_BIT, 
+GL_SCISSOR_BIT, GL_READ_ONLY, GL_MAX_FRAGMENT_INPUT_COMPONENTS, GL_MAP1_GRID_DOMAIN, GL_PIXEL_MAP_I_TO_A_SIZE, 
+GL_UNSIGNED_NORMALIZED, GL_SMOOTH_POINT_SIZE_GRANULARITY, GL_CLAMP_VERTEX_COLOR, GL_MAP2_INDEX, GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS, 
+GL_PIXEL_MAP_I_TO_R_SIZE, GL_NOTEQUAL, GL_TEXTURE_COORD_ARRAY, GL_FLOAT_32_UNSIGNED_INT_24_8_REV, GL_MAP2_GRID_DOMAIN, 
+GL_COMPRESSED_RED, GL_INT_SAMPLER_1D_ARRAY, GL_DRAW_PIXEL_TOKEN, GL_MAX_LIGHTS, GL_RGBA16_SNORM, 
+GL_OBJECT_LINEAR, GL_LIST_INDEX, GL_TEXTURE_BORDER_COLOR, GL_LUMINANCE16_ALPHA16, GL_TEXTURE_SHARED_SIZE, 
+GL_COMPILE_STATUS, GL_LOGIC_OP_MODE, GL_LUMINANCE8_ALPHA8, GL_RENDERBUFFER_DEPTH_SIZE, GL_MAX_FRAGMENT_UNIFORM_BLOCKS, 
+GL_SLUMINANCE_ALPHA, GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, GL_FEEDBACK_BUFFER_POINTER, GL_SPOT_EXPONENT, GL_SHORT, 
+GL_BLUE, GL_CW, GL_UNSIGNED_INT_24_8, GL_UNSIGNED_BYTE, GL_MAX_VERTEX_UNIFORM_COMPONENTS, 
+GL_QUADS, GL_DEPTH_TEXTURE_MODE, GL_UNSIGNED_INT_10F_11F_11F_REV, GL_R16, GL_PIXEL_PACK_BUFFER, 
+GL_PACK_LSB_FIRST, GL_RENDERBUFFER, GL_UNSIGNED_BYTE_3_3_2, GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE, GL_RGB8I, 
+GL_TRANSFORM_FEEDBACK_BUFFER_SIZE, GL_DRAW_BUFFER, GL_STENCIL_INDEX1, GL_STENCIL_INDEX4, GL_SAMPLER_3D, 
+GL_TEXTURE_GREEN_TYPE, GL_STENCIL_INDEX8, GL_DEPTH_BITS, GL_OR_INVERTED, GL_RGB8UI, 
+GL_STENCIL_INDEX16, GL_STENCIL_BACK_REF, GL_SELECT, GL_INTENSITY4, GL_BLEND_DST_RGB, 
+GL_INTENSITY8, GL_LIGHT5, GL_LINE_RESET_TOKEN, GL_MAP1_VERTEX_3, GL_TEXTURE_BINDING_2D_ARRAY, 
+GL_VERTEX_ATTRIB_ARRAY_DIVISOR, GL_CLEAR, GL_DRAW_BUFFER8, GL_CURRENT_RASTER_POSITION_VALID, GL_FOG_COORD_SRC, 
+GL_DRAW_BUFFER9, GL_SRC0_RGB, GL_PIXEL_PACK_BUFFER_BINDING, GL_DECAL, GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, 
+GL_2D, GL_SELECTION_BUFFER_POINTER, GL_SELECTION_BUFFER_SIZE, GL_SAMPLES, GL_UNSIGNED_INT_VEC2, 
+GL_UNSIGNED_INT_VEC3, GL_UNSIGNED_INT_VEC4, GL_UNSIGNED_SHORT_5_6_5, GL_CURRENT_RASTER_POSITION, GL_VERTEX_ATTRIB_ARRAY_SIZE, 
+GL_VERTEX_SHADER, GL_RGBA_MODE, GL_FLOAT_VEC2, GL_FLOAT_VEC3, GL_FLOAT_VEC4, 
+GL_COEFF, GL_RGB32UI, GL_BUFFER_MAP_OFFSET, GL_MIN_PROGRAM_TEXEL_OFFSET, GL_PROXY_TEXTURE_RECTANGLE, 
+GL_UNSIGNED_INT_SAMPLER_BUFFER, GL_UNIFORM_BUFFER_START, GL_MAX_TEXTURE_STACK_DEPTH, GL_UNSIGNED_INT_SAMPLER_2D, GL_TEXTURE8, 
+GL_INT_SAMPLER_2D_RECT, GL_TEXTURE_COORD_ARRAY_STRIDE, GL_TEXTURE4, GL_TEXTURE5, GL_TEXTURE6, 
+GL_TEXTURE7, GL_TEXTURE0, GL_CONTEXT_PROFILE_MASK, GL_TEXTURE2, GL_TEXTURE3, 
+GL_BOOL_VEC4, GL_DOUBLE, GL_RG8_SNORM, GL_BOOL_VEC3, GL_BOOL_VEC2, 
+GL_COLOR_MATERIAL_PARAMETER, GL_DOT3_RGB, GL_ONE, GL_SRC_ALPHA_SATURATE, GL_MAX_SAMPLES, 
+GL_UNPACK_IMAGE_HEIGHT, GL_TRIANGLE_STRIP, GL_N3F_V3F, GL_CONTEXT_FLAGS, GL_FRONT_LEFT, 
+GL_CLAMP, GL_POINT_SMOOTH_HINT, GL_INDEX_OFFSET, GL_INTENSITY, GL_POINT_SIZE_MAX, 
+GL_MODELVIEW_MATRIX, GL_VERTEX_ARRAY_BINDING, GL_INDEX_BITS, GL_TIMEOUT_EXPIRED, GL_INT_SAMPLER_2D_MULTISAMPLE_ARRAY, 
+GL_STENCIL_FUNC, GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING, GL_TEXTURE_ENV, GL_ALIASED_LINE_WIDTH_RANGE, GL_DECR, 
+GL_BACK, GL_VIEWPORT_BIT, GL_INT, GL_CLIP_DISTANCE1, GL_CLIP_DISTANCE0, 
+GL_CLIP_DISTANCE3, GL_CLIP_DISTANCE2, GL_CLIP_DISTANCE5, GL_CLIP_DISTANCE4, GL_MINOR_VERSION, 
+GL_PIXEL_MAP_G_TO_G_SIZE, GL_FRONT_AND_BACK, GL_POINT, GL_COMPRESSED_RG_RGTC2, GL_POLYGON_TOKEN, 
+GL_SMOOTH_LINE_WIDTH_GRANULARITY, GL_SRGB, GL_NORMAL_ARRAY_POINTER, GL_SYNC_FENCE, GL_ONE_MINUS_CONSTANT_COLOR, 
+GL_UNSIGNED_INT_8_8_8_8, GL_RGB8_SNORM, GL_TEXTURE_ALPHA_SIZE, GL_UNSIGNED_INT_SAMPLER_2D_RECT, GL_CONSTANT_COLOR, 
+GL_UNSIGNED_SHORT_4_4_4_4, GL_NO_ERROR, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, GL_BLEND_SRC_ALPHA, GL_CURRENT_SECONDARY_COLOR, 
+GL_RGBA16UI, GL_AND_REVERSE, GL_MAX_INTEGER_SAMPLES, GL_CLAMP_FRAGMENT_COLOR, GL_QUERY_RESULT_AVAILABLE, 
+GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT, GL_MAX_DRAW_BUFFERS, GL_ONE_MINUS_DST_ALPHA, GL_FOG_MODE, GL_R32UI, 
+GL_RGBA8_SNORM, GL_C4UB_V2F, GL_INT_SAMPLER_3D, GL_CURRENT_INDEX, GL_AND, 
+GL_INDEX_MODE, GL_ACCUM_GREEN_BITS, GL_MAJOR_VERSION, GL_STATIC_COPY, GL_REFLECTION_MAP, 
+GL_BGR_INTEGER, GL_3_BYTES, GL_UNIFORM_BUFFER_BINDING, GL_UNIFORM_TYPE, GL_DELETE_STATUS, 
+GL_POINT_BIT, GL_SYNC_GPU_COMMANDS_COMPLETE, GL_SMOOTH_POINT_SIZE_RANGE, GL_ALIASED_POINT_SIZE_RANGE, GL_3D, 
+GL_MAP_INVALIDATE_BUFFER_BIT, GL_UNSIGNED_INT_5_9_9_9_REV, GL_DEPTH_TEST, GL_BUFFER_MAP_LENGTH, GL_VERTEX_ATTRIB_ARRAY_POINTER, 
+GL_MULTISAMPLE, GL_MAX_GEOMETRY_OUTPUT_VERTICES, GL_TEXTURE_RED_TYPE, GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN, GL_FUNC_SUBTRACT, 
+GL_VERTEX_PROGRAM_TWO_SIDE, GL_SAMPLER_BUFFER, GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING, GL_TEXTURE_COORD_ARRAY_TYPE, GL_CLAMP_TO_BORDER, 
+GL_COLOR_ATTACHMENT15, GL_COLOR_ATTACHMENT14, GL_COLOR_ATTACHMENT17, GL_DEPTH_RANGE, GL_COLOR_ATTACHMENT11, 
+GL_COLOR_ATTACHMENT10, GL_COLOR_ATTACHMENT13, GL_COLOR_ATTACHMENT12, GL_NEAREST, GL_COMPRESSED_TEXTURE_FORMATS, 
+GL_COLOR_ATTACHMENT19, GL_COLOR_ATTACHMENT18, GL_RENDERBUFFER_GREEN_SIZE, GL_MAX_DUAL_SOURCE_DRAW_BUFFERS, GL_PIXEL_MAP_S_TO_S_SIZE, 
+GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT, GL_RGBA8, GL_T2F_C3F_V3F, GL_SAMPLER_2D_RECT_SHADOW, GL_ALL_ATTRIB_BITS, 
+GL_POINT_TOKEN, GL_T4F_C4F_N3F_V4F, GL_TEXTURE30, GL_TEXTURE31, GL_UNSIGNED_INT_SAMPLER_1D, 
+GL_POINT_SMOOTH, GL_DEPTH_CLEAR_VALUE, GL_GEOMETRY_INPUT_TYPE, GL_BACK_LEFT, GL_TEXTURE_ENV_COLOR, 
+GL_BUFFER_MAP_POINTER, GL_LINE_SMOOTH, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, GL_STENCIL_REF, GL_CURRENT_BIT, 
+GL_FOG_COORDINATE, GL_COPY_WRITE_BUFFER, GL_MAX_VARYING_FLOATS, GL_PRIMITIVE_RESTART_INDEX, GL_OPERAND0_RGB, 
+GL_LIGHT_MODEL_COLOR_CONTROL, GL_FEEDBACK, GL_ONE_MINUS_DST_COLOR, GL_MAX_ATTRIB_STACK_DEPTH, GL_FOG_COORD_ARRAY_TYPE, 
+GL_PROXY_TEXTURE_1D_ARRAY, GL_ACCUM_ALPHA_BITS, GL_PIXEL_MAP_I_TO_G, GL_PIXEL_MAP_I_TO_B, GL_PIXEL_MAP_I_TO_A, 
+GL_COLOR_BUFFER_BIT, GL_PIXEL_MAP_I_TO_I, GL_SPOT_CUTOFF, GL_PIXEL_MAP_I_TO_R, GL_LINEAR_ATTENUATION, 
+GL_SAMPLER_2D, GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE, GL_NEAREST_MIPMAP_NEAREST, GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER, GL_EDGE_FLAG_ARRAY_STRIDE, 
+GL_TEXTURE_MAG_FILTER, GL_COLOR_MATERIAL_FACE, GL_CONTEXT_COMPATIBILITY_PROFILE_BIT, GL_SINGLE_COLOR, GL_R32I, 
+GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY, GL_SAMPLER_CUBE, GL_INT_2_10_10_10_REV, GL_SAMPLER_CUBE_SHADOW, GL_LEFT, 
+GL_AND_INVERTED, GL_ACCUM_BLUE_BITS, GL_FRAMEBUFFER_SRGB, GL_SECONDARY_COLOR_ARRAY_TYPE, GL_POLYGON_OFFSET_POINT, 
+GL_BGR, GL_MAX_TEXTURE_SIZE, GL_COMBINE_ALPHA, GL_RIGHT, GL_UNSIGNED_INT_SAMPLER_2D_ARRAY, 
+GL_ARRAY_BUFFER, GL_COMPRESSED_ALPHA, GL_STENCIL_INDEX, GL_DEPTH_COMPONENT16, GL_MAX_SAMPLE_MASK_WORDS, 
+GL_TEXTURE_COMPRESSED_IMAGE_SIZE, GL_TEXTURE_RED_SIZE, GL_TEXTURE_1D, GL_MAX_VARYING_COMPONENTS, GL_NAME_STACK_DEPTH, 
+GL_BLEND_SRC_RGB, GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH, GL_BGRA_INTEGER, GL_MAX_CLIENT_ATTRIB_STACK_DEPTH, GL_FALSE, 
+GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS, GL_ONE_MINUS_SRC_ALPHA, GL_SAMPLE_ALPHA_TO_ONE, GL_WEIGHT_ARRAY_BUFFER_BINDING, GL_COLOR_ATTACHMENT3, 
+GL_PIXEL_MAP_I_TO_G_SIZE, GL_MAP2_GRID_SEGMENTS, GL_PROGRAM_POINT_SIZE, GL_COLOR_ATTACHMENT16, GL_MAX_VIEWPORT_DIMS, 
+GL_DEPTH_ATTACHMENT, GL_INT_SAMPLER_2D, GL_UNSIGNED_INT_SAMPLER_1D_ARRAY, GL_STENCIL_PASS_DEPTH_FAIL, GL_PIXEL_MAP_A_TO_A, 
+GL_TEXTURE_COORD_ARRAY_POINTER, GL_MAP1_GRID_SEGMENTS, GL_MAX_GEOMETRY_UNIFORM_BLOCKS, GL_ATTRIB_STACK_DEPTH, GL_LINE_WIDTH, 
+GL_FEEDBACK_BUFFER_SIZE, GL_BLUE_BIAS, GL_FIXED_ONLY, GL_NONE, GL_FRAMEBUFFER_DEFAULT, 
+GL_POLYGON_MODE, GL_HALF_FLOAT, GL_UNIFORM_BLOCK_NAME_LENGTH, GL_V2F, GL_TEXTURE_BINDING_RECTANGLE, 
+GL_LINE_SMOOTH_HINT, GL_CLAMP_TO_EDGE, GL_FRONT, GL_SCISSOR_BOX, GL_UNIFORM_BLOCK_DATA_SIZE, 
+GL_AMBIENT, GL_NUM_EXTENSIONS, GL_UNIFORM_IS_ROW_MAJOR, GL_MAX_UNIFORM_BLOCK_SIZE, GL_INDEX_ARRAY, 
+GL_FRAMEBUFFER_BINDING, GL_NORMAL_ARRAY_BUFFER_BINDING, GL_ALPHA, GL_SET, GL_COLOR_WRITEMASK, 
+GL_DEPTH_FUNC, GL_TEXTURE_WRAP_R, GL_TEXTURE_WRAP_S, GL_TEXTURE_WRAP_T, GL_TEXTURE9, 
+GL_INVALID_ENUM, GL_EVAL_BIT, GL_INT_SAMPLER_2D_ARRAY, GL_COMPRESSED_RGB, GL_LIGHT_MODEL_AMBIENT, 
+GL_DEPTH_COMPONENT, GL_SRC1_COLOR, GL_FOG_START, GL_WAIT_FAILED, GL_COMPARE_REF_TO_TEXTURE, 
+GL_PROJECTION_STACK_DEPTH, GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE, GL_TRUE, GL_TEXTURE_MIN_FILTER, GL_FLOAT_MAT4, 
+GL_BLUE_BITS, GL_STACK_UNDERFLOW, GL_AUX1, GL_TEXTURE_SWIZZLE_R, GL_AUX3, 
+GL_AUX2, GL_PACK_SWAP_BYTES, GL_FIRST_VERTEX_CONVENTION, GL_EQUAL, GL_TEXTURE_SWIZZLE_G, 
+GL_DEPTH_STENCIL_ATTACHMENT, GL_TRIANGLE_STRIP_ADJACENCY, GL_ADD, GL_TEXTURE_BINDING_1D_ARRAY, GL_TEXTURE_SWIZZLE_B, 
+GL_TEXTURE_SWIZZLE_A, GL_FUNC_ADD, GL_MODELVIEW_STACK_DEPTH, GL_FLOAT_MAT4x3, GL_POINT_FADE_THRESHOLD_SIZE, 
+GL_INT_SAMPLER_BUFFER, GL_UNPACK_ALIGNMENT, GL_LINE_STRIP, GL_PACK_ROW_LENGTH, GL_COLOR_MATERIAL, 
+GL_MAX_PIXEL_MAP_TABLE, GL_COLOR, GL_POLYGON_STIPPLE, GL_BITMAP, GL_DYNAMIC_READ, 
+GL_COMPRESSED_LUMINANCE, GL_LUMINANCE12_ALPHA12, GL_DEPTH_STENCIL, GL_RG8UI, GL_MAX_VERTEX_OUTPUT_COMPONENTS, 
+GL_KEEP, GL_TEXTURE_INTENSITY_SIZE, GL_PROXY_TEXTURE_2D, GL_SYNC_CONDITION, GL_ACTIVE_UNIFORM_MAX_LENGTH, 
+GL_OR, GL_MAP_INVALIDATE_RANGE_BIT, GL_TEXTURE23, GL_TEXTURE22, GL_TEXTURE21, 
+GL_TEXTURE20, GL_TEXTURE27, GL_TEXTURE26, GL_TEXTURE25, GL_TEXTURE24, 
+GL_R8_SNORM, GL_TEXTURE29, GL_TEXTURE28, GL_SAMPLER_1D_ARRAY, GL_ELEMENT_ARRAY_BUFFER_BINDING, 
+GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER, GL_TRIANGLES_ADJACENCY, GL_PIXEL_MODE_BIT, GL_LINE_LOOP, GL_ALPHA_SCALE, 
+GL_READ_BUFFER, GL_PACK_SKIP_PIXELS, GL_BACK_RIGHT, GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS, GL_SUBPIXEL_BITS, 
+GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS, GL_GEQUAL, GL_ALPHA_TEST, GL_SLUMINANCE8_ALPHA8, GL_SAMPLER_2D_MULTISAMPLE, 
+GL_LUMINANCE4_ALPHA4, GL_RGBA8UI, GL_UNIFORM_OFFSET, GL_TEXTURE1, GL_OBJECT_PLANE, 
+GL_UNSIGNED_INT_SAMPLER_CUBE, GL_SUBTRACT, GL_TIME_ELAPSED, GL_SECONDARY_COLOR_ARRAY_SIZE, GL_COMPRESSED_RED_RGTC1, 
+GL_READ_WRITE, GL_BUFFER_ACCESS, GL_LINES_ADJACENCY, GL_ARRAY_BUFFER_BINDING, GL_INDEX_WRITEMASK, 
+GL_TEXTURE_2D, GL_VERTEX_ARRAY_STRIDE, GL_DYNAMIC_DRAW, GL_4D_COLOR_TEXTURE, GL_NICEST, 
+GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS, GL_UNPACK_ROW_LENGTH, GL_CURRENT_PROGRAM, GL_BUFFER_MAPPED, GL_EYE_LINEAR, 
+GL_STREAM_DRAW, GL_POLYGON_SMOOTH_HINT, GL_INDEX, GL_MAX_UNIFORM_BUFFER_BINDINGS, GL_SIGNALED, 
+GL_FRAMEBUFFER, GL_SPECULAR, GL_TEXTURE_BINDING_2D, GL_GENERATE_MIPMAP, GL_DOMAIN, 
+GL_COLOR_ARRAY_SIZE, GL_STENCIL_BACK_FAIL, GL_POLYGON_OFFSET_FACTOR, GL_R8UI, GL_SYNC_FLUSH_COMMANDS_BIT, 
+GL_DRAW_FRAMEBUFFER_BINDING, GL_STATIC_DRAW, GL_MODELVIEW, GL_PIXEL_MAP_I_TO_B_SIZE, GL_TRIANGLES, 
+GL_SAMPLER_2D_ARRAY_SHADOW, GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING, GL_UNIFORM_MATRIX_STRIDE, GL_MAX_DEPTH_TEXTURE_SAMPLES, GL_QUERY_BY_REGION_WAIT, 
+GL_TEXTURE_RESIDENT, GL_SLUMINANCE, GL_SRGB8_ALPHA8, GL_FOG, GL_FOG_COORD, 
+GL_SAMPLER_2D_ARRAY, GL_POSITION, GL_RENDERER, GL_MIRRORED_REPEAT, GL_RG, 
+GL_PIXEL_MAP_B_TO_B, GL_LINE_STIPPLE_PATTERN, GL_STENCIL_BACK_FUNC, GL_PIXEL_MAP_R_TO_R_SIZE, GL_MAP1_TEXTURE_COORD_2, 
+GL_TEXTURE_BINDING_3D, GL_COLOR_LOGIC_OP, GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH, GL_UNIFORM_BLOCK_INDEX, GL_ENABLE_BIT, 
+GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS, GL_MAX_VERTEX_ATTRIBS, GL_SPHERE_MAP, GL_CONSTANT, GL_LINE_WIDTH_RANGE, 
+GL_XOR, GL_PROJECTION, GL_LESS, GL_COPY_PIXEL_TOKEN, GL_FRAMEBUFFER_UNDEFINED, 
+GL_2_BYTES, GL_TEXTURE_STENCIL_SIZE, GL_CURRENT_RASTER_INDEX, GL_EMISSION, GL_COMPRESSED_SRGB, 
+GL_TEXTURE_DEPTH_TYPE, GL_TEXTURE_ENV_MODE, GL_COMPRESSED_LUMINANCE_ALPHA, GL_INT_SAMPLER_1D, GL_CURRENT_RASTER_COLOR, 
+GL_PROXY_TEXTURE_2D_ARRAY, GL_QUAD_STRIP, GL_REPEAT, GL_ACCUM, GL_T2F_C4F_N3F_V3F, 
+GL_TEXTURE_INTENSITY_TYPE, GL_INTENSITY16, GL_VERTEX_ARRAY_TYPE, GL_VERTEX_ARRAY_SIZE, GL_TEXTURE_GREEN_SIZE, 
+GL_CLIENT_ALL_ATTRIB_BITS, GL_VALIDATE_STATUS, GL_RG16, GL_LIGHT7, GL_STENCIL_BACK_VALUE_MASK, 
+GL_SCISSOR_TEST, GL_STENCIL_BUFFER_BIT, GL_TEXTURE_2D_MULTISAMPLE, GL_SAMPLER_1D_ARRAY_SHADOW, GL_SRC1_RGB, 
+GL_BLEND_EQUATION_ALPHA, GL_ACTIVE_ATTRIBUTES, GL_COLOR_ATTACHMENT31, GL_LIGHTING, GL_CURRENT_RASTER_DISTANCE, 
+GL_VERTEX_ARRAY_POINTER, GL_ATTACHED_SHADERS, GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY, GL_QUERY_BY_REGION_NO_WAIT, GL_SAMPLE_COVERAGE_INVERT, 
+GL_LINES, GL_TEXTURE18, GL_TEXTURE19, GL_TEXTURE16, GL_TEXTURE17, 
+GL_TEXTURE14, GL_TEXTURE15, GL_TEXTURE12, GL_TEXTURE13, GL_TEXTURE10, 
+GL_TEXTURE11, GL_RGB, GL_SEPARATE_SPECULAR_COLOR, GL_VERTEX_ATTRIB_ARRAY_NORMALIZED, GL_TRANSFORM_FEEDBACK_BUFFER_START, 
+GL_MAX_PROGRAM_TEXEL_OFFSET, GL_STACK_OVERFLOW, GL_MAP1_VERTEX_4, GL_TEXTURE_COMPRESSION_HINT, GL_RGBA32F, 
+GL_RGBA32I, GL_COLOR_ARRAY_BUFFER_BINDING, GL_VERTEX_ATTRIB_ARRAY_TYPE, GL_TRANSPOSE_COLOR_MATRIX, GL_STENCIL_WRITEMASK, 
+GL_RG8, GL_FOG_COORDINATE_ARRAY_POINTER, GL_STENCIL_BACK_PASS_DEPTH_PASS, GL_INVALID_VALUE, GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE, 
+GL_VERSION, GL_MAP_UNSYNCHRONIZED_BIT, GL_PRIMITIVE_RESTART, GL_COLOR_ARRAY_STRIDE, GL_MAX_ELEMENTS_INDICES, 
+GL_SRC_ALPHA, GL_TEXTURE_3D, GL_GEOMETRY_VERTICES_OUT, GL_RGB8, GL_INDEX_ARRAY_POINTER, 
+GL_MATRIX_MODE, GL_UNIFORM_ARRAY_STRIDE, GL_TEXTURE_SAMPLES, GL_RGB4, GL_RGB5, 
+GL_CULL_FACE, GL_PIXEL_MAP_I_TO_I_SIZE, GL_SAMPLE_COVERAGE_VALUE, GL_PROXY_TEXTURE_CUBE_MAP, GL_SECONDARY_COLOR_ARRAY_STRIDE, 
+GL_COMPRESSED_SIGNED_RG_RGTC2, GL_COLOR_INDEXES, GL_RG32UI, GL_OPERAND1_ALPHA, GL_NORMALIZE, 
+GL_NEVER, GL_STENCIL_VALUE_MASK, GL_BLEND_DST, GL_STENCIL_BACK_WRITEMASK, GL_BLUE_SCALE, 
+GL_TEXTURE_INTERNAL_FORMAT, GL_LOAD, GL_FRAMEBUFFER_COMPLETE, GL_COPY_READ_BUFFER, GL_INDEX_ARRAY_STRIDE, 
+GL_FOG_COORD_ARRAY_POINTER, GL_MAP2_VERTEX_3, GL_TEXTURE_SWIZZLE_RGBA, GL_DEPTH_COMPONENT32, GL_RGBA, 
+GL_READ_FRAMEBUFFER, GL_NORMAL_ARRAY, GL_COLOR_SUM, GL_BLEND_EQUATION_RGB, GL_MAP2_COLOR_4, 
+GL_VENDOR, GL_TEXTURE_2D_ARRAY, GL_ACCUM_BUFFER_BIT, GL_EDGE_FLAG, GL_OBJECT_TYPE, 
+GL_C4UB_V3F, GL_INTERPOLATE, GL_BUFFER_ACCESS_FLAGS, GL_LINK_STATUS, GL_PACK_SKIP_IMAGES, 
+GL_FLOAT_MAT2x3, GL_COMBINE, GL_FLOAT_MAT2x4, GL_Q, GL_SECONDARY_COLOR_ARRAY, 
+GL_INDEX_LOGIC_OP, GL_SEPARATE_ATTRIBS, GL_PRIMITIVES_GENERATED, GL_MAX, GL_LUMINANCE, 
+GL_INVALID_INDEX, GL_MAP2_VERTEX_4, GL_AUTO_NORMAL, GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS, GL_CURRENT_RASTER_SECONDARY_COLOR, 
+GL_SAMPLER_1D_SHADOW, GL_ACCUM_RED_BITS, GL_SAMPLER_2D_SHADOW, GL_TEXTURE_MATRIX, GL_TRANSPOSE_PROJECTION_MATRIX, 
+GL_CLIP_DISTANCE6, GL_RG16F, GL_MAX_NAME_STACK_DEPTH, GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL, GL_TEXTURE_BIT, 
+GL_RG16I, GL_WRITE_ONLY, GL_STENCIL_ATTACHMENT, GL_CLIENT_VERTEX_ARRAY_BIT, GL_SAMPLE_COVERAGE, 
+GL_INDEX_ARRAY_BUFFER_BINDING, GL_SHININESS, GL_DRAW_FRAMEBUFFER, GL_TEXTURE_LOD_BIAS, GL_RGB10_A2UI
+;
+

demos/external/sources/glad/gl/gles2.d

@@ -0,0 +1,183 @@
+module glad.gl.gles2;
+
+
+public import glad.gl.types;
+public import glad.gl.funcs :
+glUniformMatrix2fv, glBeginTransformFeedback, glFlush, glGetRenderbufferParameteriv, glClearColor, 
+glClearBufferiv, glStencilMaskSeparate, glGetVertexAttribPointerv, glLinkProgram, glBindTexture, 
+glGetStringi, glFenceSync, glUniform3ui, glFramebufferRenderbuffer, glGetString, 
+glCompressedTexSubImage3D, glDetachShader, glVertexAttribI4uiv, glEndQuery, glBindSampler, 
+glLineWidth, glUniform2fv, glGetIntegeri_v, glCompileShader, glGetTransformFeedbackVarying, 
+glDeleteTextures, glStencilOpSeparate, glStencilFuncSeparate, glBindBufferRange, glVertexAttrib4f, 
+glUniform2f, glRenderbufferStorage, glDeleteShader, glGetBufferParameteri64v, glDepthRangef, 
+glUniform4iv, glGetTexParameteriv, glClearStencil, glUniformMatrix2x3fv, glGetUniformiv, 
+glGenTransformFeedbacks, glGetVertexAttribIuiv, glSampleCoverage, glSamplerParameteri, glGenTextures, 
+glSamplerParameterf, glDepthFunc, glCompressedTexSubImage2D, glUniform1f, glGetVertexAttribfv, 
+glProgramBinary, glGetTexParameterfv, glCreateShader, glIsBuffer, glUniform1i, 
+glGenRenderbuffers, glCopyTexSubImage2D, glCompressedTexImage2D, glDisable, glUniform2i, 
+glBlendFuncSeparate, glGetProgramiv, glColorMask, glHint, glFramebufferTextureLayer, 
+glBlendEquation, glGetUniformLocation, glBindFramebuffer, glEndTransformFeedback, glCullFace, 
+glUniformMatrix3x2fv, glTexStorage2D, glUniform4fv, glGetInternalformativ, glDeleteProgram, 
+glIsSampler, glVertexAttribDivisor, glGenQueries, glWaitSync, glAttachShader, 
+glUniformMatrix4x3fv, glUniform3i, glClearBufferfv, glDeleteTransformFeedbacks, glShaderBinary, 
+glCheckFramebufferStatus, glTexSubImage3D, glGetInteger64i_v, glDeleteSamplers, glCopyTexImage2D, 
+glUniform3f, glBlitFramebuffer, glBindAttribLocation, glUniformMatrix4x2fv, glBlendEquationSeparate, 
+glDrawElements, glGetShaderSource, glUniform2iv, glGetQueryObjectuiv, glGenVertexArrays, 
+glBindBufferBase, glBufferSubData, glUniform1iv, glGetBufferParameteriv, glMapBufferRange, 
+glReadBuffer, glTexStorage3D, glClientWaitSync, glDrawArraysInstanced, glViewport, 
+glGenerateMipmap, glGetShaderiv, glUniformMatrix3x4fv, glUniform2ui, glVertexAttrib3f, 
+glGetActiveAttrib, glBlendColor, glGetShaderPrecisionFormat, glResumeTransformFeedback, glUnmapBuffer, 
+glGetUniformfv, glDisableVertexAttribArray, glShaderSource, glBindRenderbuffer, glDeleteRenderbuffers, 
+glIsSync, glReleaseShaderCompiler, glDeleteFramebuffers, glDrawArrays, glUniform1ui, 
+glIsProgram, glTexSubImage2D, glGetSynciv, glVertexAttrib1fv, glClear, 
+glVertexAttrib4fv, glProgramParameteri, glIsTransformFeedback, glUniform4i, glActiveTexture, 
+glEnableVertexAttribArray, glDrawRangeElements, glBindBuffer, glIsEnabled, glStencilOp, 
+glReadPixels, glStencilMask, glUniform4f, glFramebufferTexture2D, glGetFramebufferAttachmentParameteriv, 
+glUniformMatrix2x4fv, glUniform3fv, glBufferData, glCompressedTexImage3D, glDeleteSync, 
+glPauseTransformFeedback, glGetError, glGetActiveUniformBlockName, glGetVertexAttribiv, glTexParameteriv, 
+glGetProgramBinary, glVertexAttrib3fv, glGetFloatv, glUniform3iv, glVertexAttrib2fv, 
+glGetShaderInfoLog, glGenFramebuffers, glDrawBuffers, glGetActiveUniformBlockiv, glStencilFunc, 
+glGetIntegerv, glGetAttachedShaders, glUniformBlockBinding, glIsRenderbuffer, glGetBufferPointerv, 
+glDeleteVertexArrays, glIsShader, glRenderbufferStorageMultisample, glUniform4uiv, glIsQuery, 
+glIsVertexArray, glUseProgram, glVertexAttribI4iv, glGetQueryiv, glTexImage2D, 
+glGetProgramInfoLog, glGetSamplerParameterfv, glBindTransformFeedback, glUniform4ui, glSamplerParameterfv, 
+glClearBufferuiv, glBindVertexArray, glIsTexture, glGetUniformIndices, glUniform1fv, 
+glGetInteger64v, glVertexAttribPointer, glTexParameterfv, glInvalidateSubFramebuffer, glUniformMatrix3fv, 
+glScissor, glEnable, glGetActiveUniformsiv, glVertexAttribI4i, glVertexAttribI4ui, 
+glGetFragDataLocation, glUniform2uiv, glGenBuffers, glFinish, glGetAttribLocation, 
+glBeginQuery, glVertexAttribIPointer, glBlendFunc, glCreateProgram, glTexImage3D, 
+glGenSamplers, glGetSamplerParameteriv, glIsFramebuffer, glFlushMappedBufferRange, glUniformMatrix4fv, 
+glCopyBufferSubData, glInvalidateFramebuffer, glUniform1uiv, glTransformFeedbackVaryings, glVertexAttrib2f, 
+glVertexAttrib1f, glCopyTexSubImage3D, glDepthMask, glGetUniformuiv, glGetUniformBlockIndex, 
+glGetVertexAttribIiv, glGetActiveUniform, glTexParameterf, glClearBufferfi, glTexParameteri, 
+glFrontFace, glClearDepthf, glDeleteBuffers, glSamplerParameteriv, glDrawElementsInstanced, 
+glGetBooleanv, glPixelStorei, glValidateProgram, glPolygonOffset, glDeleteQueries, 
+glUniform3uiv;
+
+public import glad.gl.enums :
+GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE, GL_UNSIGNED_INT_VEC2, GL_UNSIGNED_INT_VEC3, GL_UNSIGNED_INT_VEC4, GL_UNSIGNED_SHORT_5_6_5, 
+GL_VERTEX_ATTRIB_ARRAY_SIZE, GL_DEPTH_ATTACHMENT, GL_DITHER, GL_TRANSFORM_FEEDBACK_PAUSED, GL_RGB16UI, 
+GL_QUERY_RESULT, GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE, GL_FLOAT_VEC2, GL_FLOAT_VEC3, GL_FLOAT_VEC4, 
+GL_FLOAT, GL_RGB32UI, GL_TEXTURE_MAX_LOD, GL_BUFFER_MAP_OFFSET, GL_BUFFER_SIZE, 
+GL_RGB9_E5, GL_UNIFORM_BUFFER_START, GL_COMPRESSED_R11_EAC, GL_RGBA32UI, GL_UNSIGNED_INT_SAMPLER_2D, 
+GL_TEXTURE_MIN_LOD, GL_TEXTURE8, GL_TEXTURE9, GL_TEXTURE4, GL_TEXTURE5, 
+GL_TEXTURE6, GL_TEXTURE7, GL_TEXTURE0, GL_LINEAR_MIPMAP_LINEAR, GL_TEXTURE2, 
+GL_TEXTURE3, GL_TEXTURE_CUBE_MAP_POSITIVE_Y, GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_BLEND_EQUATION, GL_BYTE, 
+GL_BOOL_VEC3, GL_BOOL_VEC2, GL_TIMEOUT_IGNORED, GL_MAX_VARYING_VECTORS, GL_RENDERBUFFER_SAMPLES, 
+GL_ONE, GL_RG, GL_COLOR_CLEAR_VALUE, GL_MAX_SAMPLES, GL_BUFFER_USAGE, 
+GL_UNPACK_IMAGE_HEIGHT, GL_FLOAT_MAT3x2, GL_TRIANGLE_STRIP, GL_PROGRAM_BINARY_RETRIEVABLE_HINT, GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, 
+GL_FLOAT_MAT3x4, GL_COLOR_ATTACHMENT28, GL_COLOR_ATTACHMENT29, GL_COLOR_ATTACHMENT24, GL_COLOR_ATTACHMENT25, 
+GL_COLOR_ATTACHMENT26, GL_COLOR_ATTACHMENT27, GL_COLOR_ATTACHMENT20, GL_COLOR_ATTACHMENT21, GL_COLOR_ATTACHMENT22, 
+GL_COLOR_ATTACHMENT23, GL_TRANSFORM_FEEDBACK_BUFFER, GL_VERTEX_ARRAY_BINDING, GL_UNSIGNED_SHORT_5_5_5_1, GL_TIMEOUT_EXPIRED, 
+GL_COMPRESSED_RGB8_ETC2, GL_SIGNED_NORMALIZED, GL_STENCIL_FUNC, GL_MAX_TEXTURE_LOD_BIAS, GL_ALIASED_LINE_WIDTH_RANGE, 
+GL_DECR, GL_BACK, GL_TEXTURE_COMPARE_FUNC, GL_TRANSFORM_FEEDBACK_BUFFER_MODE, GL_INT, 
+GL_COMPRESSED_SIGNED_RG11_EAC, GL_POLYGON_OFFSET_FILL, GL_MINOR_VERSION, GL_FRONT_AND_BACK, GL_R8, 
+GL_RGB_INTEGER, GL_STENCIL_CLEAR_VALUE, GL_SRGB, GL_GREEN_BITS, GL_SYNC_FENCE, 
+GL_ONE_MINUS_CONSTANT_COLOR, GL_SHADING_LANGUAGE_VERSION, GL_RGB8_SNORM, GL_UNPACK_SKIP_PIXELS, GL_TEXTURE_IMMUTABLE_LEVELS, 
+GL_FRAGMENT_SHADER, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_SHORT_4_4_4_4, GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS, GL_FRAGMENT_SHADER_DERIVATIVE_HINT, 
+GL_NO_ERROR, GL_VIEWPORT, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, GL_BLEND_SRC_ALPHA, GL_DRAW_BUFFER6, 
+GL_DRAW_BUFFER7, GL_DRAW_BUFFER4, GL_DRAW_BUFFER5, GL_DRAW_BUFFER2, GL_DRAW_BUFFER3, 
+GL_DRAW_BUFFER0, GL_DRAW_BUFFER1, GL_COMPRESSED_SRGB8_ETC2, GL_QUERY_RESULT_AVAILABLE, GL_DRAW_BUFFER8, 
+GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT, GL_MAX_DRAW_BUFFERS, GL_KEEP, GL_DELETE_STATUS, GL_R32UI, 
+GL_RGBA8_SNORM, GL_INT_SAMPLER_3D, GL_SRC_COLOR, GL_SAMPLER_BINDING, GL_DEPTH24_STENCIL8, 
+GL_SAMPLE_BUFFERS, GL_MAJOR_VERSION, GL_STATIC_COPY, GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, GL_EXTENSIONS, 
+GL_UNIFORM_BUFFER_BINDING, GL_UNIFORM_TYPE, GL_COPY_READ_BUFFER_BINDING, GL_TEXTURE_COMPARE_MODE, GL_ANY_SAMPLES_PASSED, 
+GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE, GL_DEPTH_BUFFER_BIT, GL_STENCIL_BACK_PASS_DEPTH_FAIL, GL_UNIFORM_BUFFER, GL_MAP_WRITE_BIT, 
+GL_VERTEX_ATTRIB_ARRAY_POINTER, GL_ALIASED_POINT_SIZE_RANGE, GL_CCW, GL_MAP_INVALIDATE_BUFFER_BIT, GL_DEPTH_COMPONENT24, 
+GL_UNSIGNED_INT_5_9_9_9_REV, GL_DEPTH_TEST, GL_SYNC_GPU_COMMANDS_COMPLETE, GL_VERTEX_ATTRIB_ARRAY_INTEGER, GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE, 
+GL_MAX_VERTEX_UNIFORM_BLOCKS, GL_STREAM_READ, GL_LINEAR, GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN, GL_FUNC_SUBTRACT, 
+GL_R32F, GL_MAX_VARYING_COMPONENTS, GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH, GL_IMPLEMENTATION_COLOR_READ_FORMAT, GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING, 
+GL_MAX_ELEMENT_INDEX, GL_COLOR_ATTACHMENT15, GL_COLOR_ATTACHMENT14, GL_HIGH_FLOAT, GL_DEPTH_RANGE, 
+GL_GREATER, GL_CLAMP_TO_EDGE, GL_COLOR_ATTACHMENT13, GL_COLOR_ATTACHMENT12, GL_NEAREST, 
+GL_VERTEX_ATTRIB_ARRAY_ENABLED, GL_COLOR_ATTACHMENT19, GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER, GL_MAX_TEXTURE_IMAGE_UNITS, GL_RGB32F, 
+GL_FLOAT_MAT2, GL_FLOAT_MAT3, GL_FRONT_FACE, GL_DEPTH, GL_FLOAT_MAT4, 
+GL_RENDERBUFFER_GREEN_SIZE, GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE, GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT, GL_TEXTURE30, GL_TEXTURE31, 
+GL_RG8I, GL_RGBA8I, GL_RG8UI, GL_DEPTH_CLEAR_VALUE, GL_BUFFER_MAP_POINTER, 
+GL_RENDERBUFFER_BINDING, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, GL_STENCIL_REF, GL_MAX_3D_TEXTURE_SIZE, GL_COPY_WRITE_BUFFER_BINDING, 
+GL_COPY_WRITE_BUFFER, GL_BLEND, GL_MIRRORED_REPEAT, GL_R16UI, GL_TEXTURE_BINDING_3D, 
+GL_UNSIGNED_SHORT, GL_MIN, GL_ONE_MINUS_DST_COLOR, GL_ONE_MINUS_SRC_COLOR, GL_TEXTURE, 
+GL_COLOR_BUFFER_BIT, GL_DONT_CARE, GL_ACTIVE_UNIFORMS, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_MAX_VERTEX_UNIFORM_VECTORS, 
+GL_TEXTURE_BINDING_CUBE_MAP, GL_SAMPLER_2D, GL_INVALID_VALUE, GL_DRAW_BUFFER12, GL_NEAREST_MIPMAP_NEAREST, 
+GL_NUM_COMPRESSED_TEXTURE_FORMATS, GL_PACK_SKIP_ROWS, GL_TEXTURE_MAG_FILTER, GL_TEXTURE1, GL_BLEND_EQUATION_RGB, 
+GL_LINK_STATUS, GL_TEXTURE_MAX_LEVEL, GL_R32I, GL_BLEND_COLOR, GL_ALPHA_BITS, 
+GL_BOOL_VEC4, GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, GL_ONE_MINUS_CONSTANT_ALPHA, GL_NEAREST_MIPMAP_LINEAR, GL_INT_2_10_10_10_REV, 
+GL_SAMPLER_CUBE_SHADOW, GL_WAIT_FAILED, GL_MAX_TEXTURE_SIZE, GL_RG32F, GL_UNSIGNED_INT_SAMPLER_2D_ARRAY, 
+GL_ARRAY_BUFFER, GL_DEPTH_COMPONENT16, GL_UNSIGNALED, GL_RGB32I, GL_BLEND_SRC_RGB, 
+GL_FRAMEBUFFER_UNDEFINED, GL_SYNC_FLAGS, GL_FALSE, GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS, GL_ONE_MINUS_SRC_ALPHA, 
+GL_RG32I, GL_RENDERBUFFER_INTERNAL_FORMAT, GL_NUM_SHADER_BINARY_FORMATS, GL_RGBA16I, GL_R8I, 
+GL_SAMPLE_ALPHA_TO_COVERAGE, GL_INT_SAMPLER_2D, GL_STENCIL_BITS, GL_STENCIL_PASS_DEPTH_FAIL, GL_RED, 
+GL_FUNC_REVERSE_SUBTRACT, GL_RGBA8UI, GL_GREEN, GL_INVALID_OPERATION, GL_RED_INTEGER, 
+GL_NONE, GL_STENCIL_BACK_PASS_DEPTH_PASS, GL_COLOR_ATTACHMENT5, GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS, GL_COLOR_ATTACHMENT7, 
+GL_UNIFORM_BLOCK_NAME_LENGTH, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT3, GL_COLOR_ATTACHMENT2, 
+GL_UNIFORM_BLOCK_INDEX, GL_FRAMEBUFFER_DEFAULT, GL_RGBA16UI, GL_COLOR_ATTACHMENT9, GL_COLOR_ATTACHMENT8, 
+GL_COLOR_ATTACHMENT10, GL_FRONT, GL_SCISSOR_BOX, GL_UNIFORM_BLOCK_DATA_SIZE, GL_DEPTH_WRITEMASK, 
+GL_CULL_FACE_MODE, GL_MAX_FRAGMENT_UNIFORM_VECTORS, GL_NUM_EXTENSIONS, GL_UNIFORM_IS_ROW_MAJOR, GL_MAX_UNIFORM_BLOCK_SIZE, 
+GL_BOOL, GL_MAX_COMBINED_UNIFORM_BLOCKS, GL_FRAMEBUFFER_BINDING, GL_UNSIGNED_INT_24_8, GL_COMPRESSED_TEXTURE_FORMATS, 
+GL_ALPHA, GL_COLOR_WRITEMASK, GL_DST_COLOR, GL_UNSIGNED_INT, GL_DEPTH_FUNC, 
+GL_ALWAYS, GL_TEXTURE_WRAP_S, GL_TEXTURE_WRAP_T, GL_INVALID_ENUM, GL_PROGRAM_BINARY_LENGTH, 
+GL_STENCIL_BACK_VALUE_MASK, GL_INT_SAMPLER_2D_ARRAY, GL_DEPTH_COMPONENT, GL_SCISSOR_TEST, GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES, 
+GL_SHADER_TYPE, GL_COMPARE_REF_TO_TEXTURE, GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE, GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE, GL_TRUE, 
+GL_TEXTURE_MIN_FILTER, GL_REPLACE, GL_BLUE_BITS, GL_RG_INTEGER, GL_TEXTURE_SWIZZLE_R, 
+GL_VERTEX_ATTRIB_ARRAY_STRIDE, GL_EQUAL, GL_TEXTURE_SWIZZLE_G, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER_HEIGHT, 
+GL_RG16UI, GL_INTERLEAVED_ATTRIBS, GL_TEXTURE_SWIZZLE_A, GL_POLYGON_OFFSET_UNITS, GL_LOW_FLOAT, 
+GL_HALF_FLOAT, GL_FLOAT_MAT4x3, GL_DYNAMIC_COPY, GL_COLOR_ATTACHMENT6, GL_UNPACK_ALIGNMENT, 
+GL_ALREADY_SIGNALED, GL_LINE_STRIP, GL_STREAM_COPY, GL_PACK_ROW_LENGTH, GL_NUM_SAMPLE_COUNTS, 
+GL_MEDIUM_INT, GL_TEXTURE_CUBE_MAP, GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS, GL_COLOR, GL_RENDERBUFFER_DEPTH_SIZE, 
+GL_DYNAMIC_READ, GL_PROGRAM_BINARY_FORMATS, GL_LOW_INT, GL_DEPTH_STENCIL, GL_VERTEX_ATTRIB_ARRAY_DIVISOR, 
+GL_MAX_VERTEX_OUTPUT_COMPONENTS, GL_POINTS, GL_COMPRESSED_RG11_EAC, GL_RENDERBUFFER_BLUE_SIZE, GL_UNIFORM_NAME_LENGTH, 
+GL_FASTEST, GL_SYNC_CONDITION, GL_ACTIVE_UNIFORM_MAX_LENGTH, GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS, GL_MAP_INVALIDATE_RANGE_BIT, 
+GL_TEXTURE23, GL_TEXTURE22, GL_TEXTURE21, GL_TEXTURE20, GL_TEXTURE27, 
+GL_TEXTURE26, GL_TEXTURE25, GL_TEXTURE24, GL_R8_SNORM, GL_TEXTURE29, 
+GL_TEXTURE28, GL_ELEMENT_ARRAY_BUFFER_BINDING, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_X, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 
+GL_LINE_LOOP, GL_READ_BUFFER, GL_MAP_FLUSH_EXPLICIT_BIT, GL_PACK_SKIP_PIXELS, GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS, 
+GL_SUBPIXEL_BITS, GL_R16F, GL_GEQUAL, GL_READ_FRAMEBUFFER, GL_UNIFORM_BLOCK_BINDING, 
+GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, GL_LINE_WIDTH, GL_UNIFORM_OFFSET, GL_LEQUAL, GL_TRANSFORM_FEEDBACK, 
+GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, GL_UNSIGNED_INT_SAMPLER_CUBE, GL_COLOR_ATTACHMENT4, GL_UNIFORM_SIZE, GL_FUNC_ADD, 
+GL_FLOAT_MAT4x2, GL_SHADER_SOURCE_LENGTH, GL_CURRENT_VERTEX_ATTRIB, GL_ARRAY_BUFFER_BINDING, GL_TEXTURE_2D, 
+GL_DYNAMIC_DRAW, GL_OUT_OF_MEMORY, GL_NICEST, GL_IMPLEMENTATION_COLOR_READ_TYPE, GL_UNPACK_ROW_LENGTH, 
+GL_CURRENT_PROGRAM, GL_BUFFER_MAPPED, GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS, GL_RASTERIZER_DISCARD, GL_NUM_PROGRAM_BINARY_FORMATS, 
+GL_STREAM_DRAW, GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER, GL_MAX_UNIFORM_BUFFER_BINDINGS, GL_SIGNALED, GL_FRAMEBUFFER, 
+GL_UNPACK_SKIP_ROWS, GL_MEDIUM_FLOAT, GL_STENCIL_TEST, GL_R11F_G11F_B10F, GL_SRGB8, 
+GL_LUMINANCE_ALPHA, GL_PIXEL_UNPACK_BUFFER_BINDING, GL_INVERT, GL_STENCIL_BACK_FAIL, GL_POLYGON_OFFSET_FACTOR, 
+GL_TRANSFORM_FEEDBACK_VARYINGS, GL_DEPTH_COMPONENT32F, GL_TRIANGLE_FAN, GL_SYNC_FLUSH_COMMANDS_BIT, GL_ONE_MINUS_DST_ALPHA, 
+GL_DRAW_FRAMEBUFFER_BINDING, GL_MAX_ELEMENTS_VERTICES, GL_STENCIL_BACK_WRITEMASK, GL_INVALID_FRAMEBUFFER_OPERATION, GL_BUFFER_ACCESS_FLAGS, 
+GL_COMPRESSED_RGBA8_ETC2_EAC, GL_UNIFORM_BUFFER_SIZE, GL_TRIANGLES, GL_SAMPLER_2D_ARRAY_SHADOW, GL_DEPTH32F_STENCIL8, 
+GL_MAX_ARRAY_TEXTURE_LAYERS, GL_RED_BITS, GL_UNIFORM_MATRIX_STRIDE, GL_MAX_SERVER_WAIT_TIMEOUT, GL_SRGB8_ALPHA8, 
+GL_RGBA16F, GL_PACK_ALIGNMENT, GL_SAMPLER_2D_ARRAY, GL_RENDERER, GL_MAX_COLOR_ATTACHMENTS, 
+GL_ACTIVE_UNIFORM_BLOCKS, GL_UNPACK_SKIP_IMAGES, GL_STENCIL_BACK_FUNC, GL_RGB16I, GL_ACTIVE_TEXTURE, 
+GL_TEXTURE_BASE_LEVEL, GL_RGB16F, GL_COMPRESSED_SIGNED_R11_EAC, GL_UNSIGNED_INT_SAMPLER_3D, GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH, 
+GL_TEXTURE_WRAP_R, GL_INT_VEC4, GL_INT_VEC3, GL_INT_VEC2, GL_STENCIL_FAIL, 
+GL_MAX_VERTEX_ATTRIBS, GL_CONDITION_SATISFIED, GL_TEXTURE_IMMUTABLE_FORMAT, GL_FRAMEBUFFER_UNSUPPORTED, GL_DST_ALPHA, 
+GL_LESS, GL_MAX_CUBE_MAP_TEXTURE_SIZE, GL_RGB565, GL_TRANSFORM_FEEDBACK_BINDING, GL_RENDERBUFFER_WIDTH, 
+GL_READ_FRAMEBUFFER_BINDING, GL_RGBA4, GL_DRAW_BUFFER10, GL_DRAW_BUFFER11, GL_RGBA8, 
+GL_DRAW_BUFFER13, GL_DRAW_BUFFER14, GL_DRAW_BUFFER15, GL_INFO_LOG_LENGTH, GL_PRIMITIVE_RESTART_FIXED_INDEX, 
+GL_SRC_ALPHA_SATURATE, GL_RENDERBUFFER_STENCIL_SIZE, GL_REPEAT, GL_R16I, GL_RG8_SNORM, 
+GL_PIXEL_PACK_BUFFER, GL_STATIC_READ, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER, GL_VALIDATE_STATUS, 
+GL_MAP_READ_BIT, GL_STENCIL, GL_STENCIL_BUFFER_BIT, GL_TEXTURE_SWIZZLE_B, GL_COLOR_ATTACHMENT17, 
+GL_BLEND_EQUATION_ALPHA, GL_RGBA_INTEGER, GL_ACTIVE_ATTRIBUTES, GL_MAX_RENDERBUFFER_SIZE, GL_COLOR_ATTACHMENT31, 
+GL_COLOR_ATTACHMENT30, GL_STENCIL_PASS_DEPTH_PASS, GL_INCR_WRAP, GL_RENDERBUFFER_ALPHA_SIZE, GL_HIGH_INT, 
+GL_COLOR_ATTACHMENT16, GL_DECR_WRAP, GL_ATTACHED_SHADERS, GL_MAX_FRAGMENT_INPUT_COMPONENTS, GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 
+GL_LINES, GL_TEXTURE18, GL_TEXTURE19, GL_TEXTURE16, GL_TEXTURE17, 
+GL_TEXTURE14, GL_GENERATE_MIPMAP_HINT, GL_TEXTURE12, GL_COLOR_ATTACHMENT11, GL_TEXTURE10, 
+GL_MAX_FRAGMENT_UNIFORM_BLOCKS, GL_BLEND_DST_ALPHA, GL_RGB, GL_INT_SAMPLER_CUBE, GL_CURRENT_QUERY, 
+GL_VERTEX_ATTRIB_ARRAY_NORMALIZED, GL_RGB5_A1, GL_VERTEX_SHADER, GL_TRANSFORM_FEEDBACK_BUFFER_START, GL_MAX_PROGRAM_TEXEL_OFFSET, 
+GL_SHADER_BINARY_FORMATS, GL_CONSTANT_COLOR, GL_RGBA32F, GL_RGBA32I, GL_VERTEX_ATTRIB_ARRAY_TYPE, 
+GL_PIXEL_UNPACK_BUFFER, GL_LINEAR_MIPMAP_NEAREST, GL_STENCIL_WRITEMASK, GL_RG8, GL_RGB10_A2, 
+GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE, GL_VERSION, GL_MAP_UNSYNCHRONIZED_BIT, GL_ZERO, GL_ELEMENT_ARRAY_BUFFER, 
+GL_SYNC_STATUS, GL_BUFFER_MAP_LENGTH, GL_MAX_ELEMENTS_INDICES, GL_UNSIGNED_NORMALIZED, GL_CONSTANT_ALPHA, 
+GL_SRC_ALPHA, GL_TEXTURE_3D, GL_FIXED, GL_RGB8, GL_SAMPLE_COVERAGE_INVERT, 
+GL_NOTEQUAL, GL_UNIFORM_ARRAY_STRIDE, GL_FLOAT_32_UNSIGNED_INT_24_8_REV, GL_INCR, GL_CULL_FACE, 
+GL_SAMPLE_COVERAGE_VALUE, GL_RENDERBUFFER_RED_SIZE, GL_MAX_VIEWPORT_DIMS, GL_RG32UI, GL_NEVER, 
+GL_TEXTURE15, GL_STENCIL_VALUE_MASK, GL_TEXTURE13, GL_DRAW_BUFFER9, GL_COMPILE_STATUS, 
+GL_FRAMEBUFFER_COMPLETE, GL_TEXTURE11, GL_COPY_READ_BUFFER, GL_SHADER_COMPILER, GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, 
+GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, GL_LUMINANCE, GL_RGBA, GL_SHORT, GL_BLUE, 
+GL_CW, GL_MIN_PROGRAM_TEXEL_OFFSET, GL_UNSIGNED_BYTE, GL_MAX_VERTEX_UNIFORM_COMPONENTS, GL_VENDOR, 
+GL_TEXTURE_2D_ARRAY, GL_UNSIGNED_INT_10F_11F_11F_REV, GL_TEXTURE_BINDING_2D, GL_OBJECT_TYPE, GL_R8UI, 
+GL_STATIC_DRAW, GL_RENDERBUFFER, GL_FLOAT_MAT2x3, GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE, GL_FLOAT_MAT2x4, 
+GL_RGB8I, GL_COLOR_ATTACHMENT18, GL_TRANSFORM_FEEDBACK_BUFFER_SIZE, GL_TRANSFORM_FEEDBACK_ACTIVE, GL_SEPARATE_ATTRIBS, 
+GL_SAMPLER_3D, GL_MAX, GL_STENCIL_INDEX8, GL_DEPTH_BITS, GL_RGB8UI, 
+GL_STENCIL_BACK_REF, GL_INVALID_INDEX, GL_BLEND_DST_RGB, GL_SAMPLER_2D_SHADOW, GL_TEXTURE_BINDING_2D_ARRAY, 
+GL_RG16F, GL_SAMPLER_CUBE, GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL, GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING, GL_RG16I, 
+GL_PIXEL_PACK_BUFFER_BINDING, GL_STENCIL_ATTACHMENT, GL_SAMPLE_COVERAGE, GL_ANY_SAMPLES_PASSED_CONSERVATIVE, GL_DRAW_FRAMEBUFFER, 
+GL_RGB10_A2UI, GL_SAMPLES;
+

demos/external/sources/glad/gl/types.d

@@ -0,0 +1,46 @@
+module glad.gl.types;
+
+
+alias GLvoid = void;
+alias GLintptr = ptrdiff_t;
+alias GLsizei = int;
+alias GLchar = char;
+alias GLcharARB = byte;
+alias GLushort = ushort;
+alias GLint64EXT = long;
+alias GLshort = short;
+alias GLuint64 = ulong;
+alias GLhalfARB = ushort;
+alias GLubyte = ubyte;
+alias GLdouble = double;
+alias GLhandleARB = uint;
+alias GLint64 = long;
+alias GLenum = uint;
+alias GLeglImageOES = void*;
+alias GLintptrARB = ptrdiff_t;
+alias GLsizeiptr = ptrdiff_t;
+alias GLint = int;
+alias GLboolean = ubyte;
+alias GLbitfield = uint;
+alias GLsizeiptrARB = ptrdiff_t;
+alias GLfloat = float;
+alias GLuint64EXT = ulong;
+alias GLclampf = float;
+alias GLbyte = byte;
+alias GLclampd = double;
+alias GLuint = uint;
+alias GLvdpauSurfaceNV = ptrdiff_t;
+alias GLfixed = int;
+alias GLhalf = ushort;
+alias GLclampx = int;
+alias GLhalfNV = ushort;
+struct ___GLsync; alias __GLsync = ___GLsync*;
+alias GLsync = __GLsync*;
+struct __cl_context; alias _cl_context = __cl_context*;
+struct __cl_event; alias _cl_event = __cl_event*;
+extern(System) {
+alias GLDEBUGPROC = void function(GLenum, GLenum, GLuint, GLenum, GLsizei, in GLchar*, GLvoid*);
+alias GLDEBUGPROCARB = GLDEBUGPROC;
+alias GLDEBUGPROCKHR = GLDEBUGPROC;
+alias GLDEBUGPROCAMD = void function(GLuint, GLenum, GLenum, GLsizei, in GLchar*, GLvoid*);
+}

demos/simple/source/app.d

@@ -1,216 +0,0 @@
-module source.app;
-
-import ecs.std;
-import ecs.core;
-import ecs.manager;
-import ecs.attributes;
-import ecs.entity;
-
-import bindbc.sdl;
-
-import utils.utils;
-import utils.texture;
-
-import ecs_utils.math.vector;
-
-version (WebAssembly)
-{
-    extern (C) void _start()
-    {
-    }
-}
-
-SDL_Renderer *renderer;
-SDL_Window* window;
-Texture texture;
-EntityManager* manager;
-
-struct CLocation
-{
-    mixin ECS.Component;
-
-    alias location this;
-
-    vec2 location;
-}
-
-struct CTexture
-{
-    mixin ECS.Component;
-
-    Texture tex;
-}
-
-struct DrawSystem
-{
-    mixin ECS.System;
-
-    struct EntitiesData
-    {
-        uint length;
-        @readonly CTexture[] textures;
-        @readonly CLocation[] locations;
-    }
-
-    void onUpdate(EntitiesData data)
-    {
-        foreach(i; 0..data.length)
-        {
-            draw(renderer, data.textures[i].tex, data.locations[i], vec2(32,32), vec4(0,0,1,1));
-        }
-    }
-}
-
-struct MoveSystem
-{
-    mixin ECS.System;
-
-    struct EntitiesData
-    {
-        uint length;
-        CLocation[] locations;
-    }
-
-    void onUpdate(EntitiesData data)
-    {
-        foreach(i; 0..data.length)
-        {
-            data.locations[i].location.y = data.locations[i].location.y + 1; 
-            if(data.locations[i].location.y > 400)data.locations[i].location.y = 0;
-        }
-    }
-}
-
-extern (C) int main(int argc, char** argv)
-{
-    fps = 0;
-    time = 0;
-
-    if (SDL_Init(SDL_INIT_VIDEO) < 0)
-    {
-        printf("SDL could not initialize! SDL_Error: %s", SDL_GetError());
-        return -1;
-    }
-
-    SDL_version sdl_version;
-    SDL_GetVersion(&sdl_version);
-    printf("SDL version: %u.%u.%u\n",cast(uint)sdl_version.major,cast(uint)sdl_version.minor,cast(uint)sdl_version.patch);
-    
-    SDL_Window* window = SDL_CreateWindow("Simple", SDL_WINDOWPOS_CENTERED,
-                SDL_WINDOWPOS_CENTERED, 600, 400, SDL_WINDOW_SHOWN);
-    //SDL_CreateWindowAndRenderer(600, 400, SDL_RENDERER_ACCELERATED, &window, &renderer);
-    renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
-    SDL_SetRenderDrawColor(renderer, 1, 255, 255, 255);
-
-    texture.create();
-    texture.load(renderer, "assets/textures/buckler.png");
-
-    EntityManager.initialize(8);
-    manager = EntityManager.instance;
-
-    manager.beginRegister();
-
-    manager.registerComponent!CLocation;
-    manager.registerComponent!CTexture;
-
-    manager.registerSystem!MoveSystem(64);
-    manager.registerSystem!DrawSystem(64);
-
-    manager.endRegister();
-
-    ushort[2] components = [CLocation.component_id, CTexture.component_id];
-    EntityTemplate* tmpl = manager.allocateTemplate(components);
-    CTexture* tex_comp = tmpl.getComponent!CTexture;
-    tex_comp.tex = texture;
-    CLocation* loc_comp = tmpl.getComponent!CLocation;
-   // loc_comp.location = vec2(64,64);
-
-    foreach(i; 0..10)
-        foreach(j; 0..10)
-        {
-            loc_comp.location = vec2(i*32+64,j*32+64);
-            manager.addEntity(tmpl);
-        }
-    
-
-    manager.freeTemplate(tmpl);
-
-    /*image = IMG_Load("assets/owl.png");
-    tex = SDL_CreateTextureFromSurface(renderer, image);*/
-
-    version(WebAssembly)
-    {
-        emscripten_set_main_loop_arg(&loop, null, -1, 1);
-    }
-    
-    bool arg = true;
-    while(arg == true)
-    {
-        loop(&arg);
-    }
-
-    if (window !is null) {
-		SDL_DestroyWindow(window);
-	}
-
-    end();
-
-    return 0;
-}
-
-long time;
-uint fps;
-
-extern(C) void loop(void *arg = null)
-{
-    static float fps_time = 0;
-    float delta_time = cast(float)(Time.getUSecTime() - time);
-    if(delta_time > 1000_000)delta_time = 1000;
-    time = Time.getUSecTime();
-
-    if(fps_time < 0)fps_time = 0;
-
-    fps++;
-    fps_time += delta_time;
-    if(fps_time > 1000_000)
-    {
-        
-        printf("FPS: %u\n",fps);
-        fps = 0;
-        fps_time -= 1000_000;
-    }
-
-    SDL_Event event;
-    while (SDL_PollEvent(&event)) 
-    {
-        if (event.type == SDL_QUIT) {
-            version(WebAssembly)emscripten_cancel_main_loop();
-            *cast(bool*)arg = false;
-            //return false;
-        }
-
-        if (event.type == SDL_KEYDOWN) {
-            version(WebAssembly)emscripten_cancel_main_loop();
-            *cast(bool*)arg = false;
-            //return false;
-        }
-    }
-
-    SDL_RenderClear(renderer);
-
-    manager.begin();
-    manager.update();
-    manager.end();
-
-    draw(renderer,texture,vec2(32,32),vec2(32,32),vec4(0,0,1,1));
-    //SDL_RenderCopy(ctx->renderer, ctx->owl_tex, NULL, &ctx->dest);
-    SDL_RenderPresent(renderer);
-
-    //return true;
-}
-
-void end()
-{
-    EntityManager.destroy();
-    SDL_Quit();
-}

demos/simple/source/utils/texture.d

@@ -1,49 +0,0 @@
-module utils.texture;
-
-import ecs.std;
-
-import bindbc.sdl;
-import bindbc.sdl.image;
-
-import ecs_utils.math.vector;
-
-struct Texture
-{
-
-    void create()
-    {
-        data = Mallocator.make!Data;
-    }
-
-    bool load(SDL_Renderer* renderer, const char[] path)
-    {
-        char[] cpath = (cast(char*)alloca(path.length+1))[0..path.length+1];
-        //cpath[0..$-1] = path[0..$];
-        memcpy(cpath.ptr, path.ptr, path.length);
-        cpath[$-1] = 0;
-
-        SDL_Surface* surf = IMG_Load(cpath.ptr);
-        if(!surf)return false;
-
-        data.size = ivec2(surf.w,surf.h);
-
-        data.texture = SDL_CreateTextureFromSurface(renderer,surf);
-        SDL_FreeSurface(surf);
-
-        if(!data.texture)return false;
-
-        return true;
-    }
-
-    struct Data
-    {
-        ubyte[] data;
-
-        ivec2 size; 
-        uint bpp;
-
-        SDL_Texture* texture;
-    }
-
-    Data* data;
-}

demos/simple/source/utils/utils.d

@@ -1,110 +0,0 @@
-module utils.utils;
-
-extern(C) int printf(scope const char* format, ...) @nogc nothrow @system;
-
-version(WebAssembly)
-{
-
-    extern (C) alias em_callback_func = void function();
-    extern (C) alias em_arg_callback_func = void function(void*);
-    extern (C) void emscripten_set_main_loop(em_callback_func func, int fps, int simulate_infinite_loop);
-    extern (C) void emscripten_set_main_loop_arg(em_arg_callback_func func, void *arg, int fps, int simulate_infinite_loop);
-    extern (C) int emscripten_set_main_loop_timing(int mode, int value);
-    extern (C) void emscripten_cancel_main_loop();
-
-	alias int time_t;
-	alias int clockid_t;
-	enum CLOCK_REALTIME = 0;
-
-	struct timespec
-	{
-		time_t  tv_sec;
-		int     tv_nsec;
-	}
-
-	extern(C) int clock_gettime(clockid_t, timespec*) @nogc nothrow @system;
-
-	struct Time
-    {
-		
-
-        static long getUSecTime()
-        {
-			time_t time;
-			timespec spec;
-
-			clock_gettime(CLOCK_REALTIME, &spec);
-
-			//time = spec.tv_sec;
-			return spec.tv_sec * 1000_000 + spec.tv_nsec / 1000;//time / 1000_000;
-			
-			/*LARGE_INTEGER time, freq;
-            QueryPerformanceFrequency(&freq);
-			QueryPerformanceCounter(&time);
-            return time.QuadPart / (freq.QuadPart / 1000_000);*/
-        }
-    }
-}
-else version(Windows)
-{
-	import core.stdc.stdio : printf;
-	import core.sys.windows.windows;
-	struct Time
-    {
-        static long getUSecTime()
-        {
-            LARGE_INTEGER time, freq;
-            QueryPerformanceFrequency(&freq);
-			QueryPerformanceCounter(&time);
-            return time.QuadPart / (freq.QuadPart / 1000_000);
-        }
-    }
-}
-else version(Posix)
-{
-	import core.stdc.stdio : printf;
-	import core.sys.posix.time;
-	struct Time
-    {
-        static long getUSecTime()
-        {
-			time_t time;
-			timespec spec;
-
-			clock_gettime(CLOCK_REALTIME, &spec);
-
-			//time = spec.tv_sec;
-			return spec.tv_sec * 1000_000 + spec.tv_nsec / 1000;//time / 1000_000;
-			
-			/*LARGE_INTEGER time, freq;
-            QueryPerformanceFrequency(&freq);
-			QueryPerformanceCounter(&time);
-            return time.QuadPart / (freq.QuadPart / 1000_000);*/
-        }
-    }
-}
-
-import bindbc.sdl;
-import utils.texture;
-import ecs_utils.math.vector;
-
-ivec2 resolution = ivec2(600, 400);
-
-void draw(SDL_Renderer* renderer, Texture tex, vec2 pos, vec2 size, vec4 coords, float angle = 0)
-{
-	
-	SDL_Rect rect = SDL_Rect(cast(int)(coords.x*tex.data.size.x),cast(int)(coords.y*tex.data.size.y),cast(int)(coords.z*tex.data.size.x),cast(int)(coords.w*tex.data.size.y));
-	SDL_Rect rect2 = SDL_Rect(cast(int)((pos.x-size.x*0.5)),
-							cast(int)(resolution.y - pos.y - size.y*0.5),
-							cast(int)(size.x),
-							cast(int)(size.y));
-
-	SDL_RenderCopyEx(renderer,
-				tex.data.texture,
-				&rect,
-				&rect2,
-				angle*360,
-				null,
-				SDL_FLIP_NONE);
-	
-}

demos/utils/dub.json

@@ -5,21 +5,19 @@
 	],
 	"description": "Dynamic Entity Component System examples utils",
 	"copyright": "Copyright © 2018-2019, Michał Masiukiewicz, Dawid Masiukiewicz",
-	"license": "BSD",
+	"license": "BSD 3-clause",
 	"sourcePaths" : [
-		"source\/"
+		"source",
+		"../external/sources"
 	],
 	"importPaths": [
-		"source"
+		"source",
-	],
+		"../external/imports",
-	"dflags-posix-ldc": [
+		"../external/sources"
-		"-defaultlib=phobos2-ldc,druntime-ldc"
-	],
-	"dflagss": [
-		"-betterC"
 	],
 	"dependencies": {
-		"bindbc-sdl":"0.10.1"
+		"bindbc-sdl":"0.13.0",
+		"ecs":{"path":"../../"}
 	},
 	"versions": [
 		"BindSDL_Image",
@@ -32,7 +30,8 @@
 			"targetType" : "library",
 			"subConfigurations": 
 			{
-				"bindbc-sdl": "static"	
+				"bindbc-sdl": "static",
+				"ecs":"library"		
 			}
 		},
 		{
@@ -43,7 +42,8 @@
 			],
 			"subConfigurations": 
 			{
-				"bindbc-sdl": "staticBC"	
+				"bindbc-sdl": "staticBC",
+				"ecs":"library-betterC"	
 			}
 		}
 	]

demos/utils/source/ecs_utils/gfx/buffer.d

@@ -0,0 +1,134 @@
+module ecs_utils.gfx.buffer;
+
+import ecs.std;
+
+import glad.gl.gl;
+import glad.gl.gles2;
+
+extern(C):
+
+struct Buffer
+{
+
+    void create() nothrow
+    {
+        data = Mallocator.make!Data;
+        data.gl_handle = 0;
+        glGenBuffers(1,&data.gl_handle);
+        data.elem_size = 0;
+    }
+
+    //---------------------------------------------------------------------------------------------------------------------------------------------------
+
+    void destroy() nothrow
+    {
+        if(data.gl_handle)glDeleteBuffers(1,&data.gl_handle);
+    }
+
+    //---------------------------------------------------------------------------------------------------------------------------------------------------
+
+    void bind(BindTarget target) nothrow
+    {
+        //if(vbo != this)glBindBuffer(GL_ARRAY_BUFFER,data.gl_handle);
+        //vbo = this;
+        glBindBuffer(target,data.gl_handle);
+    }
+
+    void bindRange(BindTarget target, uint index, uint offset, uint size) nothrow
+    {
+        glBindBufferRange(target, index, data.gl_handle, offset, size);
+    }
+
+    //---------------------------------------------------------------------------------------------------------------------------------------------------
+
+    void bufferData(BindTarget target, uint size, uint count, uint usage, void* data) nothrow
+    {
+        bind(target);
+        this.data.elem_size = size;
+        glBufferData(target,size*count,data,usage);
+    }
+
+    /*void bufferStorage(uint size, uint count, void* data, uint flags = StorageFlagBits.write)
+    {
+        bind(BindTarget.array);
+        this.data.elem_size = size;
+        glBufferStorage(GL_ARRAY_BUFFER,size*count,data, flags);
+    }*/
+
+    void bufferSubData(uint size, uint offset, void* data) nothrow
+    {
+        bind(BindTarget.array);
+        glBufferSubData(GL_ARRAY_BUFFER,offset,size,data);
+    }
+    
+    void map(BindTarget target) nothrow
+    {
+        bind(target);
+        data.map_ptr = glMapBuffer(target,GL_WRITE_ONLY);
+    }
+
+    void map(uint offset, uint size, BindTarget target, uint flags = MapFlagBits.write | MapFlagBits.flush_explict | MapFlagBits.invalidate_buffer) nothrow
+    {
+        bind(target);
+        data.map_ptr = glMapBufferRange(target,offset,size,flags);
+    }
+
+    void flush(uint offset, uint size, BindTarget target) nothrow
+    {
+        glFlushMappedBufferRange(target, offset, size);
+    }
+
+    void unmap(BindTarget target) nothrow
+    {
+        bind(target);
+        glUnmapBuffer(target);
+        data.map_ptr = null;
+    }
+
+    void* mappedPointer() nothrow
+    {
+        return data.map_ptr;
+    }
+
+    //---------------------------------------------------------------------------------------------------------------------------------------------------
+
+    static void unbind(BindTarget target) nothrow
+    {
+        //vbo = 0;
+        glBindBuffer(target,0);
+    }
+
+    enum BindTarget
+    {
+        array = GL_ARRAY_BUFFER,
+        element_array = GL_ELEMENT_ARRAY_BUFFER,
+        uniform = GL_UNIFORM_BUFFER,
+        //shader_storage = GL_SHADER_STORAGE_BUFFER,
+        //indirect = GL_DRAW_INDIRECT_BUFFER
+    }
+
+    enum MapFlagBits
+    {
+        write = GL_MAP_WRITE_BIT,
+        invalidate_buffer = GL_MAP_INVALIDATE_BUFFER_BIT,
+        flush_explict = GL_MAP_FLUSH_EXPLICIT_BIT,
+        //coherent = GL_MAP_COHERENT_BIT,
+        //persistent = GL_MAP_PERSISTENT_BIT
+    }
+
+    enum StorageFlagBits
+    {
+        write = GL_MAP_WRITE_BIT,
+        //coherent = GL_MAP_COHERENT_BIT,
+        //persistent = GL_MAP_PERSISTENT_BIT
+    }
+
+    struct Data
+    {
+        uint elem_size;
+        uint gl_handle;
+        void* map_ptr;
+    }
+
+    Data* data;
+}

demos/utils/source/ecs_utils/gfx/config.d

@@ -0,0 +1,102 @@
+module ecs_utils.gfx.config;
+
+import bindbc.sdl;
+
+import ecs.std;
+
+import ecs_utils.gfx.material;
+import ecs_utils.gfx.mesh;
+import ecs_utils.gfx.texture;
+
+//import mutils.serializer.json;
+
+extern(C):
+
+enum LayerType
+{
+    normal,
+    sorted
+}
+
+import ecs.vector;
+
+static struct GfxConfig
+{
+    extern(C):
+    __gshared:
+    Vector!LayerType layers;
+    //Vector!Mesh meshes;
+    //Vector!Material materials;
+    Mesh[] meshes;
+    Material[] materials;
+
+    static bool load(const (char)[] path) nothrow
+    {
+        struct LoadData
+        {
+            struct Str
+            {
+                @("malloc") string str;
+            }
+
+            @("malloc") Str[] materials;
+            @("malloc") Str[] meshes;
+            int inter;
+
+            void dispose() nothrow
+            {
+                /*if(blend_mode)Mallocator.instance.dispose(cast(char[])blend_mode);
+                if(vertex)Mallocator.instance.dispose(cast(char[])vertex);
+                if(fragment)Mallocator.instance.dispose(cast(char[])fragment);*/
+            }
+        }
+
+        char[] cpath = (cast(char*)alloca(path.length+1))[0..path.length+1];
+        cpath[0..$-1] = path[0..$];
+        cpath[$-1] = 0;
+
+        SDL_RWops* file = SDL_RWFromFile(cpath.ptr,"r");
+        if(file)
+        {
+            size_t size = cast(size_t)SDL_RWsize(file);
+            char[] buffer = Mallocator.makeArray!char(size);
+            SDL_RWread(file,buffer.ptr,size,1);
+
+            LoadData load_data;
+            scope(exit)load_data.dispose();
+
+            /*JSONSerializer serializer = Mallocator.make!JSONSerializer;
+            scope(exit)Mallocator.dispose(serializer);
+            serializer.serialize!(Load.yes, true)(load_data,buffer);*/
+
+            //if(__ecs_used_backend == Backend.opengl)
+            {
+                meshes = Mallocator.makeArray!Mesh(load_data.meshes.length);
+                foreach(i,ref mesh; meshes)
+                {
+                    mesh.load(load_data.meshes[i].str);
+                    mesh.uploadData();
+                }
+            }
+            
+            materials = Mallocator.makeArray!Material(load_data.materials.length);
+            foreach(i,ref material; materials)
+            {
+                material.create();
+                material.load(load_data.materials[i].str);
+                material.compile();
+            }
+
+            SDL_RWclose(file);
+            load_data.dispose();
+            return true;
+        }
+        else return false;
+    }
+
+    static int addLayer(LayerType type)
+    {
+        layers.add(type);
+        return cast(int)(layers.length-1);
+    }
+}

demos/utils/source/ecs_utils/gfx/material.d

@@ -0,0 +1,198 @@
+module ecs_utils.gfx.material;
+
+import bindbc.sdl;
+
+import ecs.std;
+
+import ecs_utils.gfx.shader;
+
+import glad.gl.gl;
+
+//import mutils.serializer.json;
+
+struct Material
+{
+
+    void create() nothrow
+    {
+        data = Mallocator.make!Data;
+    }
+
+    bool load(const char[] path) nothrow
+    {
+        struct LoadData
+        {
+            @("malloc") string blend_mode;
+            @("malloc") string vertex;
+            @("malloc") string fragment;
+
+            void dispose() nothrow
+            {
+                //if(blend_mode)Mallocator.instance.dispose(cast(char[])blend_mode);
+                //if(vertex)Mallocator.instance.dispose(cast(char[])vertex);
+                //if(fragment)Mallocator.instance.dispose(cast(char[])fragment);
+            }
+        }
+
+        char[] cpath = (cast(char*)alloca(path.length+1))[0..path.length+1];
+        cpath[0..$-1] = path[0..$];
+        cpath[$-1] = 0;
+
+        SDL_RWops* file = SDL_RWFromFile(cpath.ptr,"r");
+        if(file)
+        {
+            size_t size = cast(size_t)SDL_RWsize(file);
+            char[] buffer = Mallocator.makeArray!char(size);
+            SDL_RWread(file,buffer.ptr,size,1);
+
+            LoadData load_data;
+            scope(exit)load_data.dispose();
+
+            /*JSONSerializer serializer = Mallocator.make!JSONSerializer;
+            scope(exit)Mallocator.dispose(serializer);
+            serializer.serialize!(Load.yes, true)(load_data,buffer);*/
+
+            //if(__ecs_used_backend == Backend.opengl)
+            {
+                Shader vsh;
+                vsh.load(load_data.vertex);
+                vsh.compile();
+
+                Shader fsh;
+                fsh.load(load_data.fragment);
+                fsh.compile();
+
+                Material.ShaderModule[1] modules = [Material.ShaderModule(vsh,fsh)];
+
+                attachModules(modules);
+            }
+
+            SDL_RWclose(file);
+            load_data.dispose();
+            return true;
+        }
+        else return false;
+    }
+
+    void bind() nothrow
+    {
+        glUseProgram(data.modules[0].gl_handle);
+    }
+    
+    enum BlendMode
+    {
+        opaque,
+        additive,
+        mixed
+    }
+
+    enum TransformMode
+    {
+        position,
+        matrix
+    }
+    
+    struct ShaderModule
+    {
+        Shader fragment_shader;
+        Shader vertex_shader;
+        uint gl_handle;
+    }
+
+    void attachModules(scope ShaderModule[] modules) nothrow
+    {
+        data.modules = Mallocator.makeArray(modules);
+    }
+
+    bool compile() nothrow
+    {
+        foreach(ref module_;data.modules)
+        {
+            module_.gl_handle = glCreateProgram();
+            glAttachShader(module_.gl_handle, module_.vertex_shader.data.gl_handle);
+            glAttachShader(module_.gl_handle, module_.fragment_shader.data.gl_handle);
+        }
+
+        return true;
+    }
+
+    void bindAttribLocation(const char* name, uint location) nothrow
+    {
+        foreach(ref module_;data.modules)
+        {
+            glBindAttribLocation(module_.gl_handle, location, name);
+        }
+    }
+
+    bool link() nothrow
+    {
+        foreach(ref module_;data.modules)
+        {
+            glLinkProgram(module_.gl_handle);
+
+            GLint ok = 0;
+            glGetProgramiv(module_.gl_handle, GL_LINK_STATUS, &ok);
+            if(!ok)
+            {
+                SDL_Log("Program link error!");
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    int getLocation(const char* name)
+    {
+        foreach(ref module_;data.modules)
+        {
+            int location = glGetUniformLocation(module_.gl_handle,name);
+            if(location != -1)return location;
+        }
+        return -1;
+    }
+
+    void pushBindings()
+    {
+        foreach(i;0..data.bindings.length)
+        {
+            glUniform1i(data.bindings[i],cast(int)i);
+        }
+    }
+
+    void pushUniforms(void* ptr)
+    {
+        foreach(ref Uniform uniform; data.uniforms)
+        {
+            void* local_ptr = ptr + uniform.offset;
+            glUniform4fv(uniform.location,1,cast(float*)local_ptr);
+        }
+    }
+
+    enum Type 
+    {
+        float_,
+        float4
+    }
+
+    struct Uniform 
+    {
+        Type type;
+        int location;
+        uint offset;
+    }
+
+    struct Data
+    {
+        BlendMode blend_mode = BlendMode.opaque;
+    
+        ShaderModule[] modules;
+
+        TransformMode mode;
+
+        Uniform[] uniforms;
+        int[] bindings;
+    }
+
+    Data* data;
+}

demos/utils/source/ecs_utils/gfx/mesh.d

@@ -0,0 +1,121 @@
+module ecs_utils.gfx.mesh;
+
+import bindbc.sdl;
+
+import ecs.std;
+
+import ecs_utils.gfx.buffer;
+
+import glad.gl.gl;
+//import mutils.serializer.json;
+
+extern(C):
+
+struct Mesh
+{
+    bool load(const char[] path) nothrow
+    {
+        struct LoadData
+        {
+            /*struct Vertex
+            {
+                struct Binding
+                {
+                    @("malloc") string type;
+                    uint stride;
+                }
+                @("malloc") Binding[] bindings;
+            }
+            Vertex vertex;*/
+            @("malloc") ushort[] indices;
+            @("malloc") float[] vertices;
+            //int i;
+
+            void dispose() nothrow
+            {
+                if(indices)Mallocator.dispose(indices);
+                if(vertices)Mallocator.dispose(vertices);
+
+                /*foreach(binding; vertex.bindings)Mallocator.instance.dispose(cast(char[])binding.type);
+
+                if(vertex.bindings)Mallocator.instance.dispose(vertex.bindings);*/
+            }
+        }
+
+        char[] cpath = (cast(char*)alloca(path.length+1))[0..path.length+1];
+        cpath[0..$-1] = path[0..$];
+        cpath[$-1] = 0;
+
+        SDL_RWops* file = SDL_RWFromFile(cpath.ptr,"r");//SDL_LoadFile(cpath.ptr,);
+        if(file)
+        {
+            size_t size = cast(size_t)SDL_RWsize(file);
+            //data.code = Mallocator.instance.makeArray!char(size);
+            //data.code[$-1] = 0;
+            char[] buffer = Mallocator.makeArray!char(size);
+            SDL_RWread(file,buffer.ptr,size,1);
+
+            LoadData load_data;
+            scope(exit)load_data.dispose();
+
+            /*JSONSerializer serializer = Mallocator.make!JSONSerializer;
+            scope(exit)Mallocator.dispose(serializer);
+            serializer.serialize!(Load.yes, true)(load_data,buffer);*/
+
+            indices = Mallocator.makeArray(load_data.indices);
+            /*vertex.create();
+            Vertex.Binding[] bindings = (cast(Vertex.Binding*)alloca(Vertex.Binding.sizeof*load_data.vertex.bindings.length))[0..load_data.vertex.bindings.length];
+            uint vertex_size = 0;
+            uint alignment = 4;
+            foreach(i, binding;load_data.vertex.bindings)
+            {
+                uint new_size = binding.stride;
+                bindings[i].stride = binding.stride;
+                if(binding.type == "float_rg")
+                {
+                    bindings[i].type = Vertex.Type.float_rg;
+                    new_size += 8;
+                }
+                if(new_size > vertex_size)vertex_size = new_size;
+                //new_size = new_size + (3 - (new_size)%alignment)
+            }
+            vertex.data.size = vertex_size;
+            vertex.attachBindings(bindings);*/
+
+            vertices = Mallocator.makeArray(load_data.vertices);
+            /*vertices = Mallocator.instance.makeArray!ubyte(vertex_size * load_data.vertices.length);
+            {
+                foreach()
+            }*/
+
+            SDL_RWclose(file);
+            load_data.dispose();
+            return true;
+        }
+        else return false;
+    }
+
+    void uploadData() nothrow
+    {
+        vbo.create();
+        vbo.bufferData(Buffer.BindTarget.array,16,cast(uint)vertices.length,GL_STATIC_DRAW,vertices.ptr);
+
+        ibo.create();
+        ibo.bufferData(Buffer.BindTarget.element_array,2,cast(uint)indices.length,GL_STATIC_DRAW,indices.ptr);
+    }
+
+    void bind() nothrow
+    {
+        vbo.bind(Buffer.BindTarget.array);
+        ibo.bind(Buffer.BindTarget.element_array);
+
+        glVertexAttribPointer(0,2,GL_FLOAT,false,16,null);
+        glVertexAttribPointer(1,2,GL_FLOAT,false,16,cast(void*)8);
+    }
+
+    float[] vertices;
+    ushort[] indices;
+    Buffer vbo;
+    Buffer ibo;
+    //Vertex vertex;
+}

demos/utils/source/ecs_utils/gfx/mesh_module.d

@@ -0,0 +1,12 @@
+module ecs_utils.gfx.mesh_module;
+
+import ecs_utils.gfx.material;
+import ecs_utils.gfx.texture;
+import ecs_utils.gfx.mesh;
+
+struct MeshModule
+{
+    Mesh* mesh;
+    Material* material;
+    Texture texture;
+}

demos/utils/source/ecs_utils/gfx/render_list.d

@@ -0,0 +1,29 @@
+module ecs_utils.gfx.render_list;
+
+import ecs_utils.gfx.mesh_module;
+import ecs_utils.math.vector;
+import ecs_utils.math.matrix;
+import ecs_utils.gfx.config;
+
+struct RenderList
+{
+    struct Data
+    {
+        MeshModule* module_;
+        uint index;
+    }
+
+    struct LocScale
+    {
+        vec2 location;
+        vec2 scale;
+    }
+
+    struct Layer
+    {
+        LayerType type;
+        Data[] list;
+        LocScale[] loc_scale;
+        mat3[] matrices;
+    }
+}

demos/utils/source/ecs_utils/gfx/renderer.d

@@ -0,0 +1,817 @@
+module ecs_utils.gfx.renderer;
+
+import bindbc.sdl;
+
+import ecs.std;
+
+//import ecs_utils.core : Backend;
+import ecs_utils.gfx.buffer;
+import ecs_utils.gfx.texture;
+import ecs_utils.math.vector;
+
+import glad.gl.gl;
+
+version = ver1;
+/*version(ver5)version = vv2;
+else version(ver6)version = vv2;*/
+
+extern(C) float sinf(float);
+extern(C) float cosf(float);
+
+enum RenderTechnique
+{
+    simple,//1
+    simple_array,//2
+    vbo_batch,//3
+    instanced_attrib_divisor,//4
+    uniform_buffer,//5
+    uniform_buffer_indexed,//6
+    uniform_buffer_multi_draw,//7
+    uniform_buffer_instanced,//8
+    uniform_buffer_instanced_mapped_gl2,//9
+    uniform_buffer_instanced_mapped,//10
+    uniform_buffer_instanced_persistent_mapped,//11
+    uniform_buffer_instanced_persistent_mapped_coherent,//12
+    ssbo_instanced,//13
+    uniform_buffer_draw_indirect,//14
+    uniform_buffer_multi_draw_indirect,//15
+    uniform_buffer_multi_draw_indirect_arb_draw_parameters//16
+}
+
+struct Renderer
+{
+    //static SDL_Renderer* main_sdl_renderer;
+
+    enum MaxObjects = 1024 * 64 * 4;
+    enum BufferUsage = GL_STATIC_DRAW;
+
+    //SDL_Window* sdl_window;
+    //SDL_Renderer* sdl_renderer;
+    ivec2 resolution;
+    vec2 dres;
+    vec4 sdl_transform;
+    vec2 view_pos = vec2(-1,-1);
+    vec2 view_size = vec2(1,1);
+
+    //uint[2] time_queries;
+
+    Buffer[2] ubos;
+    int block_alignment = 1;
+    int block_max_size = 16384;
+
+    struct IndirectDraw
+    {
+        uint count = 6;
+        uint instances = 1;
+        uint first_index = 0;
+        uint base_vertex = 0;
+        uint base_instance = 0;
+    }
+
+    Buffer[2] batch_vbo;
+    Buffer[2] batch_ibo;
+
+    float[] batch_vertices;
+    ushort[] batch_indices;
+
+    Buffer indirect_buffer;
+    IndirectDraw[] indirect_block;
+
+    Buffer id_buffer;
+
+    int data_offset = 48;
+    int data_index;
+    ubyte[] uniform_block;
+
+    struct RenderData
+    {
+        Texture texture;
+        uint material_id;
+        uint mesh_id;
+    }
+
+    RenderData[] render_list;
+    uint item_id;
+
+    uint[] multi_count;
+    uint[] multi_offset;
+
+    alias Technique = RenderTechnique;
+
+    __gshared Technique technique = Technique.simple;
+    void* data_ptr;
+
+    //import ecs_utils.core : RenderTechnique;
+
+    
+
+    void initialize()
+    {
+        //this.technique = __ecs_used_technique;
+        __initialize(this);
+    }
+
+    private static void __initialize_gl(ref Renderer this_)
+    {
+        with(this_)
+        {
+            //glGenQueries(2, time_queries.ptr);
+
+            version(WebAssembly)
+            {
+                
+            }
+            else
+            {
+                glGetIntegerv(GL_MAX_UNIFORM_BLOCK_SIZE, &block_max_size);
+                glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, &block_alignment);
+            }   
+            
+            //ubos[0].bufferStorage(1,64*MaxObjects,null);
+
+            switch(technique)
+            {
+                case Technique.simple:
+                    uniform_block = Mallocator.makeArray!ubyte(64*MaxObjects);
+                    data_ptr = uniform_block.ptr;
+                    data_offset = cast(ushort)((data_offset + block_alignment - 1) & (-cast(int) block_alignment));
+                    break;
+                case Technique.simple_array:
+                    goto case(Technique.simple);
+                case Technique.vbo_batch:
+                    batch_vbo[0].create();
+                    batch_ibo[0].create();
+                    batch_vbo[0].bufferData(Buffer.BindTarget.array,16,4*MaxObjects,BufferUsage,null);
+                    batch_ibo[0].bufferData(Buffer.BindTarget.element_array,2,6*MaxObjects,BufferUsage,null);
+
+                    batch_vbo[1].create();
+                    batch_ibo[1].create();
+                    batch_vbo[1].bufferData(Buffer.BindTarget.array,16,4*MaxObjects,BufferUsage,null);
+                    batch_ibo[1].bufferData(Buffer.BindTarget.element_array,2,6*MaxObjects,BufferUsage,null);
+
+                    batch_vertices = Mallocator.makeArray!float(16*MaxObjects);
+                    batch_indices = Mallocator.makeArray!ushort(6*MaxObjects);
+                    break;
+                case Technique.instanced_attrib_divisor:
+                    goto case(Technique.uniform_buffer_indexed);
+                case Technique.uniform_buffer:
+                    ubos[0].create();
+                    ubos[0].bufferData(Buffer.BindTarget.uniform,1,64*MaxObjects,BufferUsage,null);
+                    ubos[1].create();
+                    ubos[1].bufferData(Buffer.BindTarget.uniform,1,64*MaxObjects,BufferUsage,null);
+                    goto case(Technique.simple);
+                case Technique.uniform_buffer_indexed:
+                    ubos[0].create();
+                    ubos[0].bufferData(Buffer.BindTarget.uniform,1,64*MaxObjects,BufferUsage,null);
+                    ubos[1].create();
+                    ubos[1].bufferData(Buffer.BindTarget.uniform,1,64*MaxObjects,BufferUsage,null);
+                    uniform_block = Mallocator.makeArray!ubyte(64*MaxObjects);
+                    data_ptr = uniform_block.ptr;
+                    break;
+                /*case Technique.uniform_buffer_multi_draw:
+                    multi_count = Mallocator.makeArray!uint(992,6);
+                    multi_offset = Mallocator.makeArray!uint(992,0);
+
+                    {
+                        uint[] indices = Mallocator.makeArray!uint(992);
+                        scope(exit)Mallocator.dispose(indices);
+                        foreach(i;0..992)indices[i]=i;
+                        id_buffer.create();
+                        id_buffer.bufferData(uint.sizeof,992,BufferUsage,indices.ptr);
+                    }
+                    goto case(Technique.uniform_buffer_multi_draw_indirect_arb_draw_parameters);*/
+                case Technique.uniform_buffer_instanced:
+                    goto case(Technique.uniform_buffer_indexed);
+                case Technique.uniform_buffer_instanced_mapped_gl2:
+                    ubos[0].create();
+                    ubos[0].bufferData(Buffer.BindTarget.uniform,1,512*MaxObjects,BufferUsage,null);
+                    ubos[0].map(Buffer.BindTarget.uniform);
+                    ubos[1].create();
+                    ubos[1].bufferData(Buffer.BindTarget.uniform,1,512*MaxObjects,BufferUsage,null);
+                    ubos[1].map(Buffer.BindTarget.uniform);
+                    data_ptr = ubos[0].mappedPointer();
+                    break;
+                case Technique.uniform_buffer_instanced_mapped:
+                    ubos[0].create();
+                    ubos[0].bufferData(Buffer.BindTarget.uniform,1,64*MaxObjects,BufferUsage,null);
+                    ubos[0].map(0, 64*MaxObjects, Buffer.BindTarget.uniform);
+                    ubos[1].create();
+                    ubos[1].bufferData(Buffer.BindTarget.uniform,1,64*MaxObjects,BufferUsage,null);
+                    ubos[1].map(0, 64*MaxObjects, Buffer.BindTarget.uniform);
+                    data_ptr = ubos[0].mappedPointer();
+                    break;
+                /*case Technique.uniform_buffer_instanced_persistent_mapped:
+                    ubos[0].create();
+                    ubos[0].bufferStorage(1,64*MaxObjects,null,Buffer.StorageFlagBits.write|Buffer.StorageFlagBits.persistent);
+                    ubos[0].map(0, 64*MaxObjects, Buffer.BindTarget.uniform, Buffer.MapFlagBits.write | Buffer.MapFlagBits.persistent | Buffer.MapFlagBits.flush_explict);
+                    data_ptr = ubos[0].mappedPointer();
+                    break;
+                case Technique.uniform_buffer_instanced_persistent_mapped_coherent:
+                    ubos[0].create();
+                    ubos[0].bufferStorage(1,64*MaxObjects,null,Buffer.StorageFlagBits.write|Buffer.StorageFlagBits.persistent|Buffer.StorageFlagBits.coherent);
+                    ubos[0].map(0, 64*MaxObjects, Buffer.BindTarget.uniform, Buffer.MapFlagBits.write | Buffer.MapFlagBits.persistent | Buffer.MapFlagBits.flush_explict | Buffer.MapFlagBits.coherent);
+                    ubos[1].create();
+                    ubos[1].bufferStorage(1,64*MaxObjects,null,Buffer.StorageFlagBits.write|Buffer.StorageFlagBits.persistent|Buffer.StorageFlagBits.coherent);
+                    ubos[1].map(0, 64*MaxObjects, Buffer.BindTarget.uniform, Buffer.MapFlagBits.write | Buffer.MapFlagBits.persistent | Buffer.MapFlagBits.flush_explict | Buffer.MapFlagBits.coherent);
+                    data_ptr = ubos[0].mappedPointer();
+                    break;
+                case Technique.ssbo_instanced:
+                    goto case(Technique.uniform_buffer_indexed);
+                case Technique.uniform_buffer_draw_indirect:
+                    indirect_block = Mallocator.makeArray!IndirectDraw(1);
+                    indirect_buffer.create();
+                    indirect_buffer.bufferData(IndirectDraw.sizeof,1,BufferUsage,indirect_block.ptr);
+                    indirect_buffer.bind(Buffer.BindTarget.indirect);
+                    goto case(Technique.uniform_buffer);
+                case Technique.uniform_buffer_multi_draw_indirect:
+                    goto case(Technique.uniform_buffer_multi_draw_indirect_arb_draw_parameters);
+                case Technique.uniform_buffer_multi_draw_indirect_arb_draw_parameters:
+                    indirect_block = Mallocator.makeArray!IndirectDraw(992);
+                    foreach(i;0..992)
+                    {
+                        IndirectDraw* idraw = &indirect_block[i];
+                        idraw.base_instance = i;
+                    }
+                    indirect_buffer.create();
+                    indirect_buffer.bufferData(IndirectDraw.sizeof,992,BufferUsage,indirect_block.ptr);
+                    indirect_buffer.bind(Buffer.BindTarget.indirect);
+                    goto case(Technique.uniform_buffer_indexed);*/
+                default:break;
+            }//*/
+
+           // if(batching)data_offset = cast(ushort)((data_offset + block_alignment - 1) & (-cast(int) block_alignment));
+            //data_offset = cast(ushort)((data_offset + block_alignment - 1) & (-cast(int) block_alignment));
+
+            /*version(ver4){}
+            else version(ver5){}
+            else version(ver6){}
+            else data_offset = cast(ushort)((data_offset + block_alignment - 1) & (-cast(int) block_alignment));//*/
+            //data_offset = (data_offset + block_alignment - 1) - data_offset % block_alignment;
+
+            render_list = Mallocator.makeArray!RenderData(MaxObjects);
+
+            SDL_Log("Uniform block alignment: %u",block_alignment);
+            SDL_Log("Uniform block max size: %u",block_max_size);
+            SDL_Log("Data offset: %u",data_offset);
+        }
+    }
+
+    private static void __initialize_sdl(ref Renderer this_)
+    {
+
+    }
+
+    void draw(Texture tex, vec2 pos, vec2 size, vec4 coords, float angle = 0, uint material_id = 0, uint mesh_id = 0)
+    {
+        __draw(this,tex,pos,size,coords,angle,material_id,mesh_id);
+    }
+
+    private static void __draw_sdl(ref Renderer this_, Texture tex, vec2 pos, vec2 size, vec4 coords, float angle, uint material_id, uint mesh_id)
+    {
+        /*with(this_)
+        {
+            SDL_Rect rect = SDL_Rect(cast(int)(coords.x*tex.data.size.x),cast(int)(coords.y*tex.data.size.y),cast(int)(coords.z*tex.data.size.x),cast(int)(coords.w*tex.data.size.y));
+            SDL_Rect rect2 = SDL_Rect(cast(int)((pos.x-size.x*0.5)),
+                                    cast(int)(resolution.y - pos.y - size.y*0.5),
+                                    cast(int)(size.x),
+                                    cast(int)(size.y));
+
+            SDL_RenderCopyEx(sdl_renderer,
+                        tex.data.texture,
+                        &rect,
+                        &rect2,
+                        angle*360,
+                        null,
+                        SDL_FLIP_NONE);
+        }*/
+    }
+
+    private static void __draw_gl(ref Renderer this_, Texture tex, vec2 pos, vec2 size, vec4 coords, float angle, uint material_id, uint mesh_id)
+    {
+        //import core.stdc.string;
+        with(this_)
+        {
+            //pos += view_pos;
+            size.x *= view_size.x;
+            size.y *= view_size.y;
+            pos.x = pos.x * view_size.x + view_pos.x;
+            pos.y = pos.y * view_size.y + view_pos.y;//*/
+
+            /*version(ver6)void* ptr = ubos[0].mappedPointer() + data_index;
+            else void* ptr = uniform_block.ptr + data_index;*/
+            if(data_ptr is null)return;
+            void* ptr = data_ptr + data_index;
+            if(angle == 0)
+            {
+                *cast(float*)ptr = size.x;
+                *cast(float*)(ptr+4) = 0;
+                *cast(float*)(ptr+8) = 0;
+                *cast(float*)(ptr+12) = size.y;
+            }
+            else
+            {
+                //import core.stdc.math;
+                float sinn = sinf(angle);
+                float coss = cosf(angle);
+                *cast(float*)ptr = coss * size.x;
+                *cast(float*)(ptr+4) = -sinn * size.y;
+                *cast(float*)(ptr+8) = sinn * size.x;
+                *cast(float*)(ptr+12) = coss * size.y;
+            }
+            
+            //memcpy(ptr,);
+            memcpy(ptr+16,pos.data.ptr,8);
+            memcpy(ptr+32,coords.data.ptr,16);
+
+            //render_list[item_id] = RenderData(tex,material_id,mesh_id);
+            render_list[item_id].texture = tex;
+            render_list[item_id].material_id = material_id;
+            render_list[item_id].mesh_id = mesh_id;
+            
+            data_index += data_offset;
+            item_id++;
+        }
+    }
+
+    private static void __draw_gl_vbo_batch(ref Renderer this_, Texture tex, vec2 pos, vec2 size, vec4 coords, float angle, uint material_id, uint mesh_id)
+    {
+        import ecs_utils.gfx.config;
+        //import core.stdc.string;
+        with(this_)
+        {
+            //pos += view_pos;
+            size.x *= view_size.x;
+            size.y *= view_size.y;
+            pos.x = pos.x * view_size.x + view_pos.x;
+            pos.y = pos.y * view_size.y + view_pos.y;//*/
+
+            /*void* ptr = data_ptr + data_index;
+            *cast(float*)ptr = size.x;
+            *cast(float*)(ptr+4) = 0;
+            *cast(float*)(ptr+8) = 0;
+            *cast(float*)(ptr+12) = size.y;
+            //memcpy(ptr,);
+            memcpy(ptr+16,pos.data.ptr,8);
+            memcpy(ptr+32,coords.data.ptr,16);*/
+
+            if(angle == 0)
+            {
+                batch_vertices[item_id*16]    = GfxConfig.meshes[mesh_id].vertices[0] * size.x + pos.x;
+                batch_vertices[item_id*16+1]  = GfxConfig.meshes[mesh_id].vertices[1] * size.y + pos.y;
+                batch_vertices[item_id*16+4]  = GfxConfig.meshes[mesh_id].vertices[4] * size.x + pos.x;
+                batch_vertices[item_id*16+5]  = GfxConfig.meshes[mesh_id].vertices[5] * size.y + pos.y;
+                batch_vertices[item_id*16+8]  = GfxConfig.meshes[mesh_id].vertices[8] * size.x + pos.x;
+                batch_vertices[item_id*16+9]  = GfxConfig.meshes[mesh_id].vertices[9] * size.y + pos.y;
+                batch_vertices[item_id*16+12] = GfxConfig.meshes[mesh_id].vertices[12] * size.x + pos.x;
+                batch_vertices[item_id*16+13] = GfxConfig.meshes[mesh_id].vertices[13] * size.y + pos.y;
+            }
+            else
+            {
+                //import core.stdc.math;
+                float sinn = sinf(angle);
+                float coss = cosf(angle);
+
+                /*batch_vertices[item_id*16]    = GfxConfig.meshes[mesh_id].vertices[0]  * size.x;
+                batch_vertices[item_id*16+1]  = GfxConfig.meshes[mesh_id].vertices[1]  * size.y;
+                batch_vertices[item_id*16+4]  = GfxConfig.meshes[mesh_id].vertices[4]  * size.x;
+                batch_vertices[item_id*16+5]  = GfxConfig.meshes[mesh_id].vertices[5]  * size.y;
+                batch_vertices[item_id*16+8]  = GfxConfig.meshes[mesh_id].vertices[8]  * size.x;
+                batch_vertices[item_id*16+9]  = GfxConfig.meshes[mesh_id].vertices[9]  * size.y;
+                batch_vertices[item_id*16+12] = GfxConfig.meshes[mesh_id].vertices[12] * size.x;
+                batch_vertices[item_id*16+13] = GfxConfig.meshes[mesh_id].vertices[13] * size.y;*/
+
+                batch_vertices[item_id*16]    = (GfxConfig.meshes[mesh_id].vertices[0]  * coss + GfxConfig.meshes[mesh_id].vertices[1]  * sinn) * size.x + pos.x;
+                batch_vertices[item_id*16+1]  = (GfxConfig.meshes[mesh_id].vertices[1]  * coss - GfxConfig.meshes[mesh_id].vertices[0]  * sinn) * size.y + pos.y;
+                batch_vertices[item_id*16+4]  = (GfxConfig.meshes[mesh_id].vertices[4]  * coss + GfxConfig.meshes[mesh_id].vertices[5]  * sinn) * size.x + pos.x;
+                batch_vertices[item_id*16+5]  = (GfxConfig.meshes[mesh_id].vertices[5]  * coss - GfxConfig.meshes[mesh_id].vertices[4]  * sinn) * size.y + pos.y;
+                batch_vertices[item_id*16+8]  = (GfxConfig.meshes[mesh_id].vertices[8]  * coss + GfxConfig.meshes[mesh_id].vertices[9]  * sinn) * size.x + pos.x;
+                batch_vertices[item_id*16+9]  = (GfxConfig.meshes[mesh_id].vertices[9]  * coss - GfxConfig.meshes[mesh_id].vertices[8]  * sinn) * size.y + pos.y;
+                batch_vertices[item_id*16+12] = (GfxConfig.meshes[mesh_id].vertices[12] * coss + GfxConfig.meshes[mesh_id].vertices[13] * sinn) * size.x + pos.x;
+                batch_vertices[item_id*16+13] = (GfxConfig.meshes[mesh_id].vertices[13] * coss - GfxConfig.meshes[mesh_id].vertices[12] * sinn) * size.y + pos.y;
+            }
+
+            batch_vertices[item_id*16+2]  = GfxConfig.meshes[mesh_id].vertices[2] * coords.z + coords.x;
+            batch_vertices[item_id*16+3]  = GfxConfig.meshes[mesh_id].vertices[3] * coords.w + coords.y;
+            batch_vertices[item_id*16+6]  = GfxConfig.meshes[mesh_id].vertices[6] * coords.z + coords.x;
+            batch_vertices[item_id*16+7]  = GfxConfig.meshes[mesh_id].vertices[7] * coords.w + coords.y;
+            batch_vertices[item_id*16+10] = GfxConfig.meshes[mesh_id].vertices[10] * coords.z + coords.x;
+            batch_vertices[item_id*16+11] = GfxConfig.meshes[mesh_id].vertices[11] * coords.w + coords.y;
+            batch_vertices[item_id*16+14] = GfxConfig.meshes[mesh_id].vertices[14] * coords.z + coords.x;
+            batch_vertices[item_id*16+15] = GfxConfig.meshes[mesh_id].vertices[15] * coords.w + coords.y;
+
+            uint ind_id = item_id % 16_384;
+
+            batch_indices[item_id*6]   = cast(ushort)(GfxConfig.meshes[mesh_id].indices[0] + ind_id*4);
+            batch_indices[item_id*6+1] = cast(ushort)(GfxConfig.meshes[mesh_id].indices[1] + ind_id*4);
+            batch_indices[item_id*6+2] = cast(ushort)(GfxConfig.meshes[mesh_id].indices[2] + ind_id*4);
+            batch_indices[item_id*6+3] = cast(ushort)(GfxConfig.meshes[mesh_id].indices[3] + ind_id*4);
+            batch_indices[item_id*6+4] = cast(ushort)(GfxConfig.meshes[mesh_id].indices[4] + ind_id*4);
+            batch_indices[item_id*6+5] = cast(ushort)(GfxConfig.meshes[mesh_id].indices[5] + ind_id*4);
+
+            //render_list[item_id] = RenderData(tex,material_id,mesh_id);
+            render_list[item_id].texture = tex;
+            render_list[item_id].material_id = material_id;
+            render_list[item_id].mesh_id = mesh_id;
+            
+            //data_index += 1;//data_offset;
+            item_id++;
+        }
+    }
+
+    void clear()
+    {
+        __clear(this);
+    }
+
+    private static void __clear_sdl(ref Renderer this_)
+    {
+        //SDL_RenderClear(this_.sdl_renderer);
+    }
+
+    private static void __clear_gl(ref Renderer this_)
+    {
+        glClearColor(0,0,0,0);
+        glViewport(0,0,this_.resolution.x,this_.resolution.y);
+        glClear(GL_COLOR_BUFFER_BIT);// | GL_DEPTH_BUFFER_BIT);
+        glDisable(GL_DEPTH_TEST);
+        glDisable(GL_CULL_FACE);
+    }
+
+    void present()
+    {
+        __present(this);
+    }
+
+    private static void __present_sdl(ref Renderer this_)
+    {
+        //+SDL_RenderPresent(this_.sdl_renderer);
+    }
+
+    private static void __present_gl(ref Renderer this_)
+    {
+        glViewport(0,0,this_.resolution.x,this_.resolution.y);
+        //glEnable(GL_ALPHA_TEST);
+        //glAlphaFunc(GL_GREATER, 0.01);
+        glEnableVertexAttribArray(0);
+        glEnableVertexAttribArray(1);
+        import ecs_utils.gfx.config;
+        with(this_)
+        {
+            bool instanced = false;
+            bool indirect = false;
+            bool multi_draw = false;
+            Buffer.BindTarget buffer_target = Buffer.BindTarget.uniform;
+
+            switch(technique)
+            {
+                case Technique.simple:
+                    break;
+                case Technique.simple_array:
+                    break;
+                case Technique.vbo_batch:
+                //if(data_index){
+                    batch_vbo[0].bufferSubData(item_id*4*16,0,batch_vertices.ptr);
+                    batch_ibo[0].bufferSubData(item_id*6*2,0,batch_indices.ptr);
+
+                    batch_vbo[0].bind(Buffer.BindTarget.array);
+                    batch_ibo[0].bind(Buffer.BindTarget.element_array);
+
+                    glVertexAttribPointer(0,2,GL_FLOAT,false,16,null);
+                    glVertexAttribPointer(1,2,GL_FLOAT,false,16,cast(void*)8);//}
+                    break;
+                case Technique.instanced_attrib_divisor:
+                    ubos[0].bufferSubData(data_index,0,uniform_block.ptr);
+                    ubos[0].bind(Buffer.BindTarget.array);
+                    glEnableVertexAttribArray(2);
+                    glEnableVertexAttribArray(3);
+                    glEnableVertexAttribArray(4);
+
+                    glVertexAttribPointer(2,4,GL_FLOAT,false,48,null);
+                    glVertexAttribPointer(3,4,GL_FLOAT,false,48,cast(void*)16);
+                    glVertexAttribPointer(4,4,GL_FLOAT,false,48,cast(void*)32);
+                    glVertexAttribDivisor(2,1);
+                    glVertexAttribDivisor(3,1);
+                    glVertexAttribDivisor(4,1);
+                    //ubos[0].bindRange(Buffer.BindTarget.uniform,0,0,block_max_size);
+                    break;
+                case Technique.uniform_buffer:
+                    //ubos[0].bufferData(1,64*MaxObjects,BufferUsage,null);
+                    /*if(data_index)*/ubos[0].bufferSubData(data_index,0,uniform_block.ptr);
+                    break;
+                case Technique.uniform_buffer_indexed:
+                    ubos[0].bindRange(Buffer.BindTarget.uniform,0,0,block_max_size);
+                    goto case(Technique.uniform_buffer);
+                case Technique.uniform_buffer_multi_draw:
+                    id_buffer.bind(Buffer.BindTarget.array);
+                    glEnableVertexAttribArray(2);
+
+                    glVertexAttribIPointer(2,1,GL_UNSIGNED_INT,cast(uint)uint.sizeof,cast(void*)0);
+                    glVertexAttribDivisor(2,1);
+                    multi_draw = true;
+                    goto case(Technique.uniform_buffer_instanced);
+                case Technique.uniform_buffer_instanced:
+                    instanced = true;
+                    goto case(Technique.uniform_buffer);
+                case Technique.uniform_buffer_instanced_mapped_gl2:
+                    instanced = true;
+                    ubos[0].unmap(Buffer.BindTarget.uniform);
+                    break;
+                case Technique.uniform_buffer_instanced_mapped:
+                    instanced = true;
+                    ubos[0].flush(0,data_index,Buffer.BindTarget.uniform);
+                    ubos[0].unmap(Buffer.BindTarget.uniform);
+                    break;
+                /*case Technique.uniform_buffer_instanced_persistent_mapped:
+                    instanced = true;
+                    ubos[0].flush(0,data_index,Buffer.BindTarget.uniform);
+                    //glMemoryBarrier(GL_BUFFER_UPDATE_BARRIER_BIT);
+                    break;
+                case Technique.uniform_buffer_instanced_persistent_mapped_coherent:
+                    instanced = true;
+                    break;
+                    //ubos[0].flush(0,data_index,Buffer.BindTarget.uniform);
+                    //goto case(Technique.uniform_buffer_instanced_mapped);
+                case Technique.ssbo_instanced:
+                    //buffer_target = Buffer.BindTarget.shader_storage;
+                    ubos[0].bindRange(Buffer.BindTarget.shader_storage,0,0,48*MaxObjects);
+                    goto case(Technique.uniform_buffer_instanced);
+                case Technique.uniform_buffer_draw_indirect:
+                    goto case(Technique.uniform_buffer);
+                case Technique.uniform_buffer_multi_draw_indirect:
+                    indirect_buffer.bind(Buffer.BindTarget.array);
+                    glEnableVertexAttribArray(2);
+
+                    glVertexAttribIPointer(2,1,GL_UNSIGNED_INT,cast(uint)IndirectDraw.sizeof,cast(void*)(4*uint.sizeof));
+                    glVertexAttribDivisor(2,1);
+                    goto case(Technique.uniform_buffer_multi_draw_indirect_arb_draw_parameters);
+                case Technique.uniform_buffer_multi_draw_indirect_arb_draw_parameters:
+                    indirect = true;
+                    goto case(Technique.uniform_buffer_instanced);*/
+                default:break;
+            }
+
+            data_index = 0;
+
+            int mesh_id = -1;
+            int material_id = -1;
+            int ubo_start = -1;
+            Texture texture;
+            uint item_ubo_id = 0;
+
+            /*Buffer tmpb = ubos[0];
+            ubos[0] = ubos[1];
+            ubos[1] = tmpb;
+
+            tmpb = batch_vbo[0];
+            batch_vbo[0] = batch_vbo[1];
+            batch_vbo[1] = tmpb;
+
+            tmpb = batch_ibo[0];
+            batch_ibo[0] = batch_ibo[1];
+            batch_ibo[1] = tmpb;//*/
+            //glFinish();
+
+            //glBeginQuery(GL_TIME_ELAPSED, time_queries[0]);
+            if(technique == Technique.vbo_batch)
+            {
+                uint items = item_id/16_384+1;
+                foreach(i; 0..items)
+                {
+                    if(material_id != render_list[i].material_id)
+                    {
+                        material_id = render_list[i].material_id;
+                        GfxConfig.materials[material_id].bind();
+                    }
+                    if(texture.data != render_list[i].texture.data)
+                    {
+                        texture.data = render_list[i].texture.data;
+                        render_list[i].texture.bind();
+                    }
+
+                    uint instance_count = 16_384;
+                    if(i*16_384 > item_id)
+                    {
+                        instance_count = i*16_384 - item_id;
+                    }
+
+                    /*glVertexAttribPointer(0,2,GL_FLOAT,false,16,cast(void*)(i*16_384*4*16));
+                    glVertexAttribPointer(1,2,GL_FLOAT,false,16,cast(void*)(i*16_384*4*16+8));
+
+                    glDrawElements(GL_TRIANGLES,instance_count*6,GL_UNSIGNED_SHORT,cast(void*)(i*16_384*6*2));*/
+
+                    glDrawElementsBaseVertex(GL_TRIANGLES,instance_count*6,GL_UNSIGNED_SHORT,cast(void*)(i*16_384*6*2),i*16_384*4);
+                }
+            }
+            else if(technique == Technique.ssbo_instanced || technique == Technique.instanced_attrib_divisor)
+            {
+                if(mesh_id != render_list[0].mesh_id)
+                {
+                    mesh_id = render_list[0].mesh_id;
+                    GfxConfig.meshes[mesh_id].bind();
+                }
+                if(material_id != render_list[0].material_id)
+                {
+                    material_id = render_list[0].material_id;
+                    GfxConfig.materials[material_id].bind();
+                }
+                if(texture.data != render_list[0].texture.data)
+                {
+                    texture.data = render_list[0].texture.data;
+                    render_list[0].texture.bind();
+                }
+                glDrawArraysInstanced(GL_TRIANGLE_STRIP,0,4,item_id);
+                //glDrawElementsInstanced(GL_TRIANGLES,6,GL_UNSIGNED_SHORT,null,item_id);
+            }
+            else if(instanced)
+            {
+                uint items = item_id/992+1;
+                foreach(i; 0..items)
+                {
+                    if(mesh_id != render_list[i].mesh_id)
+                    {
+                        mesh_id = render_list[i].mesh_id;
+                        GfxConfig.meshes[mesh_id].bind();
+                    }
+                    if(material_id != render_list[i].material_id)
+                    {
+                        material_id = render_list[i].material_id;
+                        GfxConfig.materials[material_id].bind();
+                    }
+                    if(texture.data != render_list[i].texture.data)
+                    {
+                        texture.data = render_list[0].texture.data;
+                        render_list[i].texture.bind();
+                    }
+                    ubos[0].bindRange(buffer_target,0,data_index,block_max_size);
+
+                    uint instance_count = 992;
+                    if(i*992 > item_id)
+                    {
+                        instance_count = i*992 - item_id;
+                    }
+
+                    /*if(indirect)glMultiDrawElementsIndirect(GL_TRIANGLES, GL_UNSIGNED_SHORT, cast(void*)0, instance_count, 0);
+                    else if(multi_draw)glMultiDrawElements(GL_TRIANGLES,cast(int*)multi_count.ptr,GL_UNSIGNED_SHORT,cast(void**)multi_offset.ptr,instance_count); 
+                        //glMultiDrawElementsBaseVertex(GL_TRIANGLES,cast(int*)multi_count.ptr,GL_UNSIGNED_SHORT,cast(void**)multi_offset.ptr,instance_count,cast(int*)multi_offset.ptr);
+                    else */glDrawElementsInstanced(GL_TRIANGLES,6,GL_UNSIGNED_SHORT,null,instance_count);
+                    //glDrawArraysInstanced(GL_TRIANGLES,0,6,instance_count);
+                    data_index += data_offset * 992;
+                }
+            }
+            else
+            foreach(item; render_list[0..item_id])
+            {
+                if(mesh_id != item.mesh_id)
+                {
+                    mesh_id = item.mesh_id;
+                    GfxConfig.meshes[mesh_id].bind();
+                }
+                if(material_id != item.material_id)
+                {
+                    material_id = item.material_id;
+                    GfxConfig.materials[material_id].bind();
+                    GfxConfig.materials[material_id].pushBindings();
+                }
+                if(texture.data != item.texture.data)
+                {
+                    texture.data = render_list[0].texture.data;
+                    item.texture.bind();
+                }
+                
+                switch(technique)
+                {
+                    case Technique.simple:
+                        /*glUniform4f(0, *cast(float*)&uniform_block[data_index], *cast(float*)&uniform_block[data_index+4], *cast(float*)&uniform_block[data_index+8], *cast(float*)&uniform_block[data_index+12]);
+                        glUniform4f(1, *cast(float*)&uniform_block[data_index+16], *cast(float*)&uniform_block[data_index+20], *cast(float*)&uniform_block[data_index+24], *cast(float*)&uniform_block[data_index+28]);
+                        glUniform4f(2, *cast(float*)&uniform_block[data_index+32], *cast(float*)&uniform_block[data_index+36], *cast(float*)&uniform_block[data_index+40], *cast(float*)&uniform_block[data_index+44]);
+                        */
+                            GfxConfig.materials[material_id].pushUniforms(&uniform_block[data_index]);break;
+                    case Technique.simple_array:
+                        glUniform4fv(0,12,cast(float*)(uniform_block.ptr+data_index));
+                        break;
+                    case Technique.uniform_buffer:
+                        ubos[0].bindRange(Buffer.BindTarget.uniform,0,data_index,data_offset);
+                        break;
+                    /*case Technique.uniform_buffer_draw_indirect:
+                         ubos[0].bindRange(Buffer.BindTarget.uniform,0,data_index,data_offset);
+                         glDrawElementsIndirect(GL_TRIANGLES,GL_UNSIGNED_SHORT,null);
+                         data_index += data_offset;
+                         continue;*/
+                    case Technique.uniform_buffer_indexed:
+                        if(item_ubo_id >= 992)
+                        {
+                            item_ubo_id = 0;
+                            ubo_start = data_index;
+                            ubos[0].bindRange(Buffer.BindTarget.uniform,0,ubo_start,block_max_size);
+                        }
+                        glUniform1i(0,item_ubo_id++);
+                        break;
+                    default:break;
+                }//*/
+
+                /*version(ver3)ubos[0].bindRange(Buffer.BindTarget.uniform,0,data_index,data_offset);
+                else version(ver1)
+                {
+                    glUniform4f(0, *cast(float*)&uniform_block[data_index], *cast(float*)&uniform_block[data_index+4], *cast(float*)&uniform_block[data_index+8], *cast(float*)&uniform_block[data_index+12]);
+                    glUniform4f(1, *cast(float*)&uniform_block[data_index+16], *cast(float*)&uniform_block[data_index+20], *cast(float*)&uniform_block[data_index+24], *cast(float*)&uniform_block[data_index+28]);
+                    glUniform4f(2, *cast(float*)&uniform_block[data_index+32], *cast(float*)&uniform_block[data_index+36], *cast(float*)&uniform_block[data_index+40], *cast(float*)&uniform_block[data_index+44]);
+                }
+                else version(ver2)glUniform4fv(0,12,cast(float*)(uniform_block.ptr+data_index));
+                else version(ver4)
+                {
+                    if(item_ubo_id >= 992)
+                    {
+                        item_ubo_id = 0;
+                        ubo_start = data_index;
+                        ubos[0].bindRange(Buffer.BindTarget.uniform,0,ubo_start,block_max_size);
+                    }
+                    glUniform1i(0,item_ubo_id++);
+                }//*/
+                
+                glDrawElements(GL_TRIANGLES,6,GL_UNSIGNED_SHORT,null);
+                //glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+                data_index += data_offset;
+            }
+            //glEndQuery(GL_TIME_ELAPSED);
+            //uint tmpq = time_queries[0];
+            //time_queries[0] = time_queries[1];
+            //time_queries[1] = tmpq;
+            /*Buffer tmpb = ubos[0];
+            ubos[0] = ubos[1];
+            ubos[1] = tmpb;//*/
+
+            data_index = 0;
+            //data_offset = 0;
+            item_id = 0;
+            //SDL_GL_SwapWindow(sdl_window);
+            //glMemoryBarrier(GL_BUFFER_UPDATE_BARRIER_BIT);
+            //version(ver6)ubos[0].map(0, 64*MaxObjects, Buffer.BindTarget.uniform);
+            //ubos[0].map(Buffer.BindTarget.uniform);
+
+            switch(technique)
+            {
+                case Technique.uniform_buffer_instanced_mapped_gl2:
+                    ubos[0].map(Buffer.BindTarget.uniform);
+                    //data_ptr = ubos[0].mappedPointer();
+                    break;
+                case Technique.uniform_buffer_instanced_mapped:
+                    ubos[0].map(0, 64*MaxObjects, Buffer.BindTarget.uniform);
+                    //data_ptr = ubos[0].mappedPointer();
+                    break;
+                default:break;
+            }
+
+            if(ubos[0].data && ubos[0].mappedPointer)
+            {
+                data_ptr = ubos[0].mappedPointer;
+            }
+
+            /*switch(technique)
+            {
+                case Technique.simple:
+                case Technique.simple_array:
+                case Technique.uniform_buffer:
+                case Technique.uniform_buffer_indexed:
+                case Technique.uniform_buffer_instanced:
+                case Technique.uniform_buffer_instanced_mapped:
+                case Technique.uniform_buffer_instanced_persistent_mapped:
+                default:break;
+            }*/
+        }
+        glDisableVertexAttribArray(0);
+        glDisableVertexAttribArray(1);
+        /*glUseProgram(0);
+        glBindBuffer(GL_ARRAY_BUFFER, 0);
+        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);*/
+        //glDisable(GL_ALPHA_TEST);
+    }
+
+    void resize(ivec2 size)
+    {
+        resolution = size;
+        dres = vec2(1.0/cast(float)size.x,1.0/cast(float)size.y);
+    }
+
+    void view(vec2 pos, vec2 size)
+    {
+        view_pos = pos * size - 1;
+        view_size = vec2(2/size.x,2/size.y);
+        sdl_transform = vec4(0,0,1.0/size.x,1.0/size.y);
+    }
+
+    static void function(ref Renderer this_, Texture tex, vec2 pos, vec2 size, vec4 coords, float angle, uint material_id, uint mesh_id) __draw;
+    static void function(ref Renderer this_) __present;
+    static void function(ref Renderer this_) __clear;
+    static void function(ref Renderer this_) __initialize;
+
+    static void __loadBackend() 
+    {
+        //this.technique = __ecs_used_technique;
+        if(technique == Technique.vbo_batch)__draw = &__draw_gl_vbo_batch;
+        else __draw = &__draw_gl;
+        __present = &__present_gl;
+        __clear = &__clear_gl;
+        __initialize = &__initialize_gl;
+    }
+
+}

demos/utils/source/ecs_utils/gfx/shader.d

@@ -0,0 +1,171 @@
+module ecs_utils.gfx.shader;
+
+import bindbc.sdl;
+
+import ecs.std;
+
+import glad.gl.gl;
+
+//version = ver1;
+
+struct Shader
+{
+
+    void create() nothrow
+    {
+        data = Mallocator.make!Data;
+    }
+
+    bool load(const char[] path) nothrow
+    {
+        if(data is null)data = Mallocator.make!Data;
+
+        char[] cpath = (cast(char*)alloca(path.length+1))[0..path.length+1];
+        cpath[0..$-1] = path[0..$];
+        cpath[$-1] = 0;
+
+        int ind = cast(int)path.length - 1;
+        for(;ind>0;ind--)
+        {
+            if(path[ind] == '.')break;
+        }
+        if(ind < 0)return false;
+        ind++;
+        if(ind + 2 > path.length)return false;
+
+        char[2] ext = path[ind .. ind + 2];
+        if(ext[0] == 'v' && ext[1] == 'p')data.type = Type.vertex;
+        else if(ext[0] == 'f' && ext[1] == 'p')data.type = Type.fragment;
+        else return false;
+        
+        SDL_RWops* file = SDL_RWFromFile(cpath.ptr,"r");//SDL_LoadFile(cpath.ptr,);
+        if(file)
+        {
+            size_t size = cast(size_t)SDL_RWsize(file);
+            data.code = Mallocator.makeArray!char(size+1);
+            data.code[$-1] = 0;
+            SDL_RWread(file,data.code.ptr,size,1);
+
+            SDL_RWclose(file);
+            return true;
+        }
+        else return false;
+
+    }
+
+    bool compile() nothrow
+    {
+        switch(data.type)
+        {
+            case Type.vertex:
+                data.gl_handle = glCreateShader(GL_VERTEX_SHADER);
+                break;
+            case Type.fragment:
+                data.gl_handle = glCreateShader(GL_FRAGMENT_SHADER);
+                break;
+            default: return false;
+        }
+        
+        version(WebAssembly)const char* glsl = "#version 100\n";
+        else const char* glsl = "#version 450\n";
+        const char* buffer = data.code.ptr;
+        char* ver;
+        version(WebAssembly)ver = cast(char*)"#define ver1 1\n#define GLES\n".ptr;
+        else ver = cast(char*)"#define ver1 1\n".ptr;
+        /*switch(__ecs_used_technique)
+        {
+            case RenderTechnique.simple:
+                ver = cast(char*)"#define ver1 1\n".ptr;
+                break;
+            case RenderTechnique.simple_array:
+                ver = cast(char*)"#define ver2 1\n".ptr;
+                break;
+            case RenderTechnique.vbo_batch:
+                ver = cast(char*)"#define ver10 1\n".ptr;
+                break;
+            case RenderTechnique.instanced_attrib_divisor:
+                ver = cast(char*)"#define ver8 1\n".ptr;
+                break;
+            case RenderTechnique.uniform_buffer:
+                ver = cast(char*)"#define ver3 1\n".ptr;
+                break;
+            case RenderTechnique.uniform_buffer_indexed:
+                ver = cast(char*)"#define ver4 1\n".ptr;
+                break;
+            case RenderTechnique.uniform_buffer_multi_draw:
+                goto case(RenderTechnique.uniform_buffer_multi_draw_indirect);
+            case RenderTechnique.uniform_buffer_instanced:
+                ver = cast(char*)"#define ver5 1\n".ptr;
+                break;
+            case RenderTechnique.uniform_buffer_instanced_mapped_gl2:
+                goto case(RenderTechnique.uniform_buffer_instanced);
+            case RenderTechnique.uniform_buffer_instanced_mapped:
+                goto case(RenderTechnique.uniform_buffer_instanced);
+            case RenderTechnique.uniform_buffer_instanced_persistent_mapped:
+                goto case(RenderTechnique.uniform_buffer_instanced);
+            case RenderTechnique.uniform_buffer_instanced_persistent_mapped_coherent:
+                goto case(RenderTechnique.uniform_buffer_instanced);
+            case RenderTechnique.ssbo_instanced:
+                ver = cast(char*)"#define ver6 1\n".ptr;
+                break;
+            case RenderTechnique.uniform_buffer_draw_indirect:
+                goto case(RenderTechnique.uniform_buffer);
+            case RenderTechnique.uniform_buffer_multi_draw_indirect:
+                ver = cast(char*)"#define ver9 1\n".ptr;
+                break;
+            case RenderTechnique.uniform_buffer_multi_draw_indirect_arb_draw_parameters:
+                ver = cast(char*)"#define ver7 1\n".ptr;
+                break;
+            default:break;
+        }*/
+        /*version(ver1)const char* ver = "#define ver1 1\n";
+        version(ver2)const char* ver = "#define ver2 1\n";
+        version(ver3)const char* ver = "#define ver3 1\n";
+        version(ver4)const char* ver = "#define ver4 1\n";
+        version(ver5)const char* ver = "#define ver5 1\n";
+        version(ver6)const char* ver = "#define ver5 1\n";*/
+
+        const char*[3] input = [glsl,ver,buffer];
+        
+        glShaderSource(data.gl_handle,3,input.ptr,null);
+
+        glCompileShader(data.gl_handle);
+
+        int compile;
+        glGetShaderiv(data.gl_handle,GL_COMPILE_STATUS,&compile);
+        if(compile == GL_FALSE)
+        {
+            SDL_Log("Shader compile error! %u %s",data.type,glsl);
+            return false;
+        }
+
+        return true;
+    }
+
+    void destroy() nothrow
+    {
+        if(data)
+        {
+            if(data.gl_handle)glDeleteShader(data.gl_handle);
+            Mallocator.dispose(data);
+            data = null;
+        }
+    }
+
+    enum Type
+    {
+        vertex,
+        fragment,
+        geometry
+    }
+
+    struct Data
+    {
+        char[] code;
+        Type type;
+
+        uint gl_handle;
+    }
+
+    Data* data;
+}

demos/utils/source/ecs_utils/gfx/sprite.d

@@ -0,0 +1,11 @@
+module ecs_utils.gfx.sprite;
+
+import ecs_utils.math.matrix;
+import ecs_utils.gfx.mesh_module;
+
+struct sprite
+{
+    MeshModule* mesh;
+
+    mat3 matrix;
+}

demos/utils/source/ecs_utils/gfx/texture.d

@@ -0,0 +1,118 @@
+module ecs_utils.gfx.texture;
+
+import bindbc.sdl;
+
+import ecs.std;
+
+import ecs_utils.math.vector;
+
+import glad.gl.gl;
+
+extern(C):
+
+struct Texture
+{
+
+    void create()
+    {
+        data = Mallocator.make!Data;
+    }
+
+    bool load(const char[] path)
+    {
+        char[] cpath = (cast(char*)alloca(path.length+1))[0..path.length+1];
+        cpath[0..$-1] = path[0..$];
+        cpath[$-1] = 0;
+
+        return __load(this, cpath);
+    }
+
+    /*static bool __load_sdl(ref Texture this_, const char[] path)
+    {
+        import ecs_utils.gfx.renderer;
+        SDL_Surface* surf = IMG_Load(path.ptr);
+        if(!surf)return false;
+
+        this_.data.size = ivec2(surf.w,surf.h);
+
+        this_.data.texture = SDL_CreateTextureFromSurface(Renderer.main_sdl_renderer,surf);
+        if(!this_.data.texture)return false;
+        //this_.data.texture = surf;
+
+        return true;
+    }*/
+
+    static bool __load_gl(ref Texture this_, const char[] path)
+    {
+        SDL_Surface* surf = IMG_Load(path.ptr);
+        if(!surf)return false;
+
+        with(this_)
+        {
+            data.size = ivec2(surf.w,surf.h);
+            data.bpp = surf.format.BytesPerPixel;
+            data.data = Mallocator.makeArray!ubyte(surf.w*surf.h*surf.format.BytesPerPixel);
+            data.data[0..$] = (cast(ubyte*)surf.pixels)[0..data.data.length];
+
+            glGenTextures(1, &data.gl_handle);
+            glBindTexture(GL_TEXTURE_2D,data.gl_handle);
+
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+
+            if(data.bpp == 3)glTexImage2D(GL_TEXTURE_2D,0,GL_RGB,surf.w,surf.h,0,GL_RGB,GL_UNSIGNED_BYTE,data.data.ptr);
+            else if(data.bpp == 4)glTexImage2D(GL_TEXTURE_2D,0,GL_RGBA,surf.w,surf.h,0,GL_RGBA,GL_UNSIGNED_BYTE,data.data.ptr);
+            else return false;
+        }
+
+
+        return true;
+    }
+
+    void bind()
+    {
+        glActiveTexture(GL_TEXTURE0);
+        glBindTexture(GL_TEXTURE_2D, data.gl_handle);
+    }
+
+    void destory()
+    {
+        if(data)
+        {
+            glDeleteTextures(1, &data.gl_handle);
+            Mallocator.dispose(data);
+            data = null;
+        }
+    }
+
+    static bool function(ref Texture this_, const char[] path) __load;
+
+    struct Data
+    {
+        ubyte[] data;
+
+        ivec2 size; 
+        uint bpp;
+
+        union
+        {
+            SDL_Texture* texture;
+            uint gl_handle;
+        }
+    }
+
+    static void __loadBackend()
+    {
+        __load = &__load_gl;
+        /*switch(backend)
+        {
+            case Backend.opengl:__load = &__load_gl;break;
+            case Backend.sdl:__load = &__load_sdl;break;
+            default:goto case(Backend.opengl);
+        }*/
+    }
+    
+    Data* data;
+}

demos/utils/source/ecs_utils/gfx/vertex.d

@@ -0,0 +1,64 @@
+module ecs_utils.gfx.vertex;
+
+import ecs.std;
+
+struct Vertex 
+{
+    void create()
+    {
+        data = Mallocator.make!Data;
+    }
+
+    void bind()
+    {
+
+    }
+
+    void enableStates()
+    {
+        
+    }
+
+    void attachBindings(scope Binding[] bindings)
+    {
+        data.bindings = Mallocator.makeArray(bindings);
+    }
+
+    enum Type
+    {
+        byte_r_snorm,
+        byte_r_unorm,
+        byte_rg_snorm,
+        byte_rg_unorm,
+        byte_rgb_snorm,
+        byte_rgb_unorm,
+        byte_rgba_snorm,
+        byte_rgba_unorm,
+        short_r_snorm,
+        short_r_unorm,
+        short_rg_snorm,
+        short_rg_unorm,
+        short_rgb_snorm,
+        short_rgb_unorm,
+        short_rgba_snorm,
+        short_rgba_unorm,
+        float_r,
+        float_rg,
+        float_rgb,
+        float_rgba
+    }
+
+    struct Binding
+    {
+        Type type;
+        uint stride;
+    }
+
+    struct Data
+    {
+        Binding[] bindings;
+        uint size;
+    }
+
+    Data* data;
+}

demos/utils/source/ecs_utils/imgui_bind.d

@@ -0,0 +1,508 @@
+module ecs_utils.imgui_bind;
+
+import bindbc.sdl;
+import cimgui.cimgui;
+
+version(WebAssembly)
+{
+    extern(C):
+    bool ImGui_ImplOpenGL3_Init(const char* glsl_version = null);
+    void ImGui_ImplOpenGL3_Shutdown();
+    void ImGui_ImplOpenGL3_NewFrame();
+    void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data);
+
+    bool ImGui_ImplSDL2_InitForOpenGL(SDL_Window* window, void* sdl_gl_context);
+    bool ImGui_ImplSDL2_InitForVulkan(SDL_Window* window);
+    bool ImGui_ImplSDL2_InitForD3D(SDL_Window* window);
+    void ImGui_ImplSDL2_Shutdown();
+    void ImGui_ImplSDL2_NewFrame(SDL_Window* window);
+    bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event);
+}
+else :
+
+import bindbc.sdl;
+
+import glad.gl.gl;
+
+import cimgui.cimgui;
+
+extern(C):
+
+SDL_Window* g_Window;
+ulong g_Time;
+bool[3] g_MousePressed;
+SDL_Cursor*[ImGuiMouseCursor_COUNT] g_MouseCursors;
+char* g_ClipboardTextData;
+GLuint g_FontTexture = 0;
+
+const (char)* ImGuiImplSDL2GetClipboardText(void*)
+{
+    if (g_ClipboardTextData)
+        SDL_free(g_ClipboardTextData);
+    g_ClipboardTextData = SDL_GetClipboardText();
+    return g_ClipboardTextData;
+}
+
+void ImGuiImplSDL2SetClipboardText(void*, const char* text)
+{
+    SDL_SetClipboardText(text);
+}
+
+bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
+{
+    ImGuiIO* io = igGetIO();
+    switch (event.type)
+    {
+    case SDL_MOUSEWHEEL:
+        {
+            if (event.wheel.x > 0) io.MouseWheelH += 1;
+            if (event.wheel.x < 0) io.MouseWheelH -= 1;
+            if (event.wheel.y > 0) io.MouseWheel += 1;
+            if (event.wheel.y < 0) io.MouseWheel -= 1;
+            return true;
+        }
+    case SDL_MOUSEBUTTONDOWN:
+        {
+            if (event.button.button == SDL_BUTTON_LEFT) g_MousePressed[0] = true;
+            if (event.button.button == SDL_BUTTON_RIGHT) g_MousePressed[1] = true;
+            if (event.button.button == SDL_BUTTON_MIDDLE) g_MousePressed[2] = true;
+            return true;
+        }
+    case SDL_TEXTINPUT:
+        {
+            ImGuiIO_AddInputCharactersUTF8(io,event.text.text.ptr);
+            return true;
+        }
+    case SDL_KEYDOWN:
+    case SDL_KEYUP:
+        {
+            int key = event.key.keysym.scancode;
+            //IM_ASSERT(key >= 0 && key < IM_ARRAYSIZE(io.KeysDown));
+            io.KeysDown[key] = (event.type == SDL_KEYDOWN);
+            io.KeyShift = ((SDL_GetModState() & KMOD_SHIFT) != 0);
+            io.KeyCtrl = ((SDL_GetModState() & KMOD_CTRL) != 0);
+            io.KeyAlt = ((SDL_GetModState() & KMOD_ALT) != 0);
+            io.KeySuper = ((SDL_GetModState() & KMOD_GUI) != 0);
+            return true;
+        }
+    default:break;
+    }
+    return false;
+}
+
+bool ImGuiImplSDL2Init(SDL_Window* window)
+{
+    g_Window = window;
+
+    // Setup back-end capabilities flags
+    ImGuiIO* io = igGetIO();
+    io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;       // We can honor GetMouseCursor() values (optional)
+    io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;        // We can honor io.WantSetMousePos requests (optional, rarely used)
+    io.BackendPlatformName = "imgui_impl_sdl";
+
+    // Keyboard mapping. ImGui will use those indices to peek into the io.KeysDown[] array.
+    io.KeyMap[ImGuiKey_Tab] = SDL_SCANCODE_TAB;
+    io.KeyMap[ImGuiKey_LeftArrow] = SDL_SCANCODE_LEFT;
+    io.KeyMap[ImGuiKey_RightArrow] = SDL_SCANCODE_RIGHT;
+    io.KeyMap[ImGuiKey_UpArrow] = SDL_SCANCODE_UP;
+    io.KeyMap[ImGuiKey_DownArrow] = SDL_SCANCODE_DOWN;
+    io.KeyMap[ImGuiKey_PageUp] = SDL_SCANCODE_PAGEUP;
+    io.KeyMap[ImGuiKey_PageDown] = SDL_SCANCODE_PAGEDOWN;
+    io.KeyMap[ImGuiKey_Home] = SDL_SCANCODE_HOME;
+    io.KeyMap[ImGuiKey_End] = SDL_SCANCODE_END;
+    io.KeyMap[ImGuiKey_Insert] = SDL_SCANCODE_INSERT;
+    io.KeyMap[ImGuiKey_Delete] = SDL_SCANCODE_DELETE;
+    io.KeyMap[ImGuiKey_Backspace] = SDL_SCANCODE_BACKSPACE;
+    io.KeyMap[ImGuiKey_Space] = SDL_SCANCODE_SPACE;
+    io.KeyMap[ImGuiKey_Enter] = SDL_SCANCODE_RETURN;
+    io.KeyMap[ImGuiKey_Escape] = SDL_SCANCODE_ESCAPE;
+    io.KeyMap[ImGuiKey_KeyPadEnter] = SDL_SCANCODE_RETURN2;
+    io.KeyMap[ImGuiKey_A] = SDL_SCANCODE_A;
+    io.KeyMap[ImGuiKey_C] = SDL_SCANCODE_C;
+    io.KeyMap[ImGuiKey_V] = SDL_SCANCODE_V;
+    io.KeyMap[ImGuiKey_X] = SDL_SCANCODE_X;
+    io.KeyMap[ImGuiKey_Y] = SDL_SCANCODE_Y;
+    io.KeyMap[ImGuiKey_Z] = SDL_SCANCODE_Z;
+
+    io.SetClipboardTextFn = &ImGuiImplSDL2SetClipboardText;
+    io.GetClipboardTextFn = &ImGuiImplSDL2GetClipboardText;
+    io.ClipboardUserData = null;
+
+    g_MouseCursors[ImGuiMouseCursor_Arrow] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
+    g_MouseCursors[ImGuiMouseCursor_TextInput] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_IBEAM);
+    g_MouseCursors[ImGuiMouseCursor_ResizeAll] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEALL);
+    g_MouseCursors[ImGuiMouseCursor_ResizeNS] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENS);
+    g_MouseCursors[ImGuiMouseCursor_ResizeEW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEWE);
+    g_MouseCursors[ImGuiMouseCursor_ResizeNESW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENESW);
+    g_MouseCursors[ImGuiMouseCursor_ResizeNWSE] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENWSE);
+    g_MouseCursors[ImGuiMouseCursor_Hand] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_HAND);
+
+    //#ifdef _WIN32
+    version(WebAssembly)
+    {
+
+    }
+    else version(Windows)
+    {
+        SDL_SysWMinfo wmInfo;
+        SDL_VERSION(&wmInfo.version_);
+        SDL_GetWindowWMInfo(window, &wmInfo);
+        io.ImeWindowHandle = wmInfo.info.win.window;
+    }
+    //#else
+        //(void)window;
+    //#endif
+
+    return true;
+}
+
+bool ImGuiImplSDL2InitForOpenGL(SDL_Window* window, void* sdl_gl_context)
+{
+    //(void)sdl_gl_context; // Viewport branch will need this.
+    return ImGuiImplSDL2Init(window);
+}
+
+void ImGuiImplSDL2Shutdown()
+{
+    g_Window = null;
+
+    // Destroy last known clipboard data
+    if (g_ClipboardTextData)
+        SDL_free(g_ClipboardTextData);
+    g_ClipboardTextData = null;
+
+    // Destroy SDL mouse cursors
+    for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++)
+        SDL_FreeCursor(g_MouseCursors[cursor_n]);
+    //memset(g_MouseCursors, 0, sizeof(g_MouseCursors));
+}
+
+static void ImGui_ImplSDL2_UpdateMousePosAndButtons()
+{
+    ImGuiIO* io = igGetIO();
+
+    // Set OS mouse position if requested (rarely used, only when ImGuiConfigFlags_NavEnableSetMousePos is enabled by user)
+    if (io.WantSetMousePos)
+        SDL_WarpMouseInWindow(g_Window, cast(int)io.MousePos.x, cast(int)io.MousePos.y);
+    else
+        io.MousePos = ImVec2(-float.max, -float.max);
+
+    int mx, my;
+    Uint32 mouse_buttons = SDL_GetMouseState(&mx, &my);
+    io.MouseDown[0] = g_MousePressed[0] || (mouse_buttons & (SDL_PRESSED<<(SDL_BUTTON_LEFT-1))) != 0;  // If a mouse press event came, always pass it as "mouse held this frame", so we don't miss click-release events that are shorter than 1 frame.
+    io.MouseDown[1] = g_MousePressed[1] || (mouse_buttons & (SDL_PRESSED<<(SDL_BUTTON_RIGHT-1))) != 0;
+    io.MouseDown[2] = g_MousePressed[2] || (mouse_buttons & (SDL_PRESSED<<(SDL_BUTTON_MIDDLE-1))) != 0;
+    g_MousePressed[0] = g_MousePressed[1] = g_MousePressed[2] = false;
+
+    //#if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE && !defined(__EMSCRIPTEN__) && !defined(__ANDROID__) && !(defined(__APPLE__) && TARGET_OS_IOS)
+    /*SDL_Window* focused_window = SDL_GetKeyboardFocus();
+    if (g_Window == focused_window)
+    {
+        // SDL_GetMouseState() gives mouse position seemingly based on the last window entered/focused(?)
+        // The creation of a new windows at runtime and SDL_CaptureMouse both seems to severely mess up with that, so we retrieve that position globally.
+        int wx, wy;
+        SDL_GetWindowPosition(focused_window, &wx, &wy);
+        SDL_GetGlobalMouseState(&mx, &my);
+        mx -= wx;
+        my -= wy;
+        io.MousePos = ImVec2((float)mx, (float)my);
+    }
+
+    // SDL_CaptureMouse() let the OS know e.g. that our imgui drag outside the SDL window boundaries shouldn't e.g. trigger the OS window resize cursor.
+    // The function is only supported from SDL 2.0.4 (released Jan 2016)
+    bool any_mouse_button_down = ImGui::IsAnyMouseDown();
+    SDL_CaptureMouse(any_mouse_button_down ? SDL_TRUE : SDL_FALSE);
+//#else*/
+    if (SDL_GetWindowFlags(g_Window) & SDL_WINDOW_INPUT_FOCUS)
+        io.MousePos = ImVec2(cast(float)mx, cast(float)my);
+//#endif
+}
+
+static void ImGui_ImplSDL2_UpdateMouseCursor()
+{
+    ImGuiIO* io = igGetIO();
+    if (io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange)
+        return;
+
+    ImGuiMouseCursor imgui_cursor = igGetMouseCursor();
+    if (io.MouseDrawCursor || imgui_cursor == ImGuiMouseCursor_None)
+    {
+        // Hide OS mouse cursor if imgui is drawing it or if it wants no cursor
+        SDL_ShowCursor(SDL_FALSE);
+    }
+    else
+    {
+        // Show OS mouse cursor
+        SDL_SetCursor(g_MouseCursors[imgui_cursor] ? g_MouseCursors[imgui_cursor] : g_MouseCursors[ImGuiMouseCursor_Arrow]);
+        SDL_ShowCursor(SDL_TRUE);
+    }
+}
+
+static void ImGui_ImplSDL2_UpdateGamepads()
+{
+    ImGuiIO* io = igGetIO();
+    //memset(io.NavInputs, 0, sizeof(io.NavInputs));
+    if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0)
+        return;
+
+    // Get gamepad
+    SDL_GameController* game_controller = SDL_GameControllerOpen(0);
+    if (!game_controller)
+    {
+        io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
+        return;
+    }
+
+    // Update gamepad inputs
+    /*#define MAP_BUTTON(NAV_NO, BUTTON_NO)       { io.NavInputs[NAV_NO] = (SDL_GameControllerGetButton(game_controller, BUTTON_NO) != 0) ? 1.0f : 0.0f; }
+    #define MAP_ANALOG(NAV_NO, AXIS_NO, V0, V1) { float vn = (float)(SDL_GameControllerGetAxis(game_controller, AXIS_NO) - V0) / (float)(V1 - V0); if (vn > 1.0f) vn = 1.0f; if (vn > 0.0f && io.NavInputs[NAV_NO] < vn) io.NavInputs[NAV_NO] = vn; }
+    const int thumb_dead_zone = 8000;           // SDL_gamecontroller.h suggests using this value.
+    MAP_BUTTON(ImGuiNavInput_Activate,      SDL_CONTROLLER_BUTTON_A);               // Cross / A
+    MAP_BUTTON(ImGuiNavInput_Cancel,        SDL_CONTROLLER_BUTTON_B);               // Circle / B
+    MAP_BUTTON(ImGuiNavInput_Menu,          SDL_CONTROLLER_BUTTON_X);               // Square / X
+    MAP_BUTTON(ImGuiNavInput_Input,         SDL_CONTROLLER_BUTTON_Y);               // Triangle / Y
+    MAP_BUTTON(ImGuiNavInput_DpadLeft,      SDL_CONTROLLER_BUTTON_DPAD_LEFT);       // D-Pad Left
+    MAP_BUTTON(ImGuiNavInput_DpadRight,     SDL_CONTROLLER_BUTTON_DPAD_RIGHT);      // D-Pad Right
+    MAP_BUTTON(ImGuiNavInput_DpadUp,        SDL_CONTROLLER_BUTTON_DPAD_UP);         // D-Pad Up
+    MAP_BUTTON(ImGuiNavInput_DpadDown,      SDL_CONTROLLER_BUTTON_DPAD_DOWN);       // D-Pad Down
+    MAP_BUTTON(ImGuiNavInput_FocusPrev,     SDL_CONTROLLER_BUTTON_LEFTSHOULDER);    // L1 / LB
+    MAP_BUTTON(ImGuiNavInput_FocusNext,     SDL_CONTROLLER_BUTTON_RIGHTSHOULDER);   // R1 / RB
+    MAP_BUTTON(ImGuiNavInput_TweakSlow,     SDL_CONTROLLER_BUTTON_LEFTSHOULDER);    // L1 / LB
+    MAP_BUTTON(ImGuiNavInput_TweakFast,     SDL_CONTROLLER_BUTTON_RIGHTSHOULDER);   // R1 / RB
+    MAP_ANALOG(ImGuiNavInput_LStickLeft,    SDL_CONTROLLER_AXIS_LEFTX, -thumb_dead_zone, -32768);
+    MAP_ANALOG(ImGuiNavInput_LStickRight,   SDL_CONTROLLER_AXIS_LEFTX, +thumb_dead_zone, +32767);
+    MAP_ANALOG(ImGuiNavInput_LStickUp,      SDL_CONTROLLER_AXIS_LEFTY, -thumb_dead_zone, -32767);
+    MAP_ANALOG(ImGuiNavInput_LStickDown,    SDL_CONTROLLER_AXIS_LEFTY, +thumb_dead_zone, +32767);
+
+    io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
+    #undef MAP_BUTTON
+    #undef MAP_ANALOG*/
+}
+
+
+private long frequency;
+
+void ImGuiImplSDL2NewFrame(SDL_Window* window)
+{
+    ImGuiIO* io = igGetIO();
+    assert(ImFontAtlas_IsBuilt(io.Fonts), "Font atlas not built! It is generally built by the renderer back-end. Missing call to renderer _NewFrame() function? e.g. ImGui_ImplOpenGL3_NewFrame().");
+
+    // Setup display size (every frame to accommodate for window resizing)
+    int w, h;
+    int display_w, display_h;
+    SDL_GetWindowSize(window, &w, &h);
+    SDL_GL_GetDrawableSize(window, &display_w, &display_h);
+    io.DisplaySize = ImVec2(cast(float)w, cast(float)h);
+    if (w > 0 && h > 0)
+        io.DisplayFramebufferScale = ImVec2(cast(float)display_w / w, cast(float)display_h / h);
+
+    // Setup time step (we don't use SDL_GetTicks() because it is using millisecond resolution)
+    frequency = SDL_GetPerformanceFrequency();
+    long current_time = SDL_GetPerformanceCounter();
+    io.DeltaTime = g_Time > 0 ? cast(float)(cast(double)(current_time - g_Time) / frequency) : cast(float)(1.0f / 60.0f);
+    g_Time = current_time;
+
+    ImGui_ImplSDL2_UpdateMousePosAndButtons();
+    ImGui_ImplSDL2_UpdateMouseCursor();
+
+    // Update game controllers (if enabled and available)
+    ImGui_ImplSDL2_UpdateGamepads();
+}
+
+
+
+
+
+
+
+
+
+
+bool ImGuiImplOpenGL2Init()
+{
+    // Setup back-end capabilities flags
+    ImGuiIO* io = igGetIO();
+    io.BackendRendererName = "imgui_impl_opengl2";
+    return true;
+}
+
+void ImGuiImplOpenGL2Shutdown()
+{
+    ImGuiImplOpenGL2DestroyDeviceObjects();
+}
+
+void ImGuiImplOpenGL2NewFrame()
+{
+    if (!g_FontTexture)
+        ImGuiImplOpenGL2CreateDeviceObjects();
+}
+
+static void ImGuiImplOpenGL2SetupRenderState(ImDrawData* draw_data, int fb_width, int fb_height)
+{
+    // Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled, vertex/texcoord/color pointers, polygon fill.
+    glEnable(GL_BLEND);
+    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+    glDisable(GL_CULL_FACE);
+    glDisable(GL_DEPTH_TEST);
+    //glDisable(GL_LIGHTING);
+    //glDisable(GL_COLOR_MATERIAL);
+    glEnable(GL_SCISSOR_TEST);
+    glEnableClientState(GL_VERTEX_ARRAY);
+    glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+    glEnableClientState(GL_COLOR_ARRAY);
+    glEnable(GL_TEXTURE_2D);
+    glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+
+    // If you are using this code with non-legacy OpenGL header/contexts (which you should not, prefer using imgui_impl_opengl3.cpp!!),
+    // you may need to backup/reset/restore current shader using the lines below. DO NOT MODIFY THIS FILE! Add the code in your calling function:
+    //  GLint last_program;
+    //  glGetIntegerv(GL_CURRENT_PROGRAM, &last_program);
+    //  glUseProgram(0);
+    //  ImGui_ImplOpenGL2_RenderDrawData(...);
+    //  glUseProgram(last_program)
+
+    // Setup viewport, orthographic projection matrix
+    // Our visible imgui space lies from draw_data.DisplayPos (top left) to draw_data.DisplayPos+data_data.DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
+    glViewport(0, 0, cast(GLsizei)fb_width, cast(GLsizei)fb_height);
+    glMatrixMode(GL_PROJECTION);
+    glPushMatrix();
+    glLoadIdentity();
+    glOrtho(draw_data.DisplayPos.x, draw_data.DisplayPos.x + draw_data.DisplaySize.x, draw_data.DisplayPos.y + draw_data.DisplaySize.y, draw_data.DisplayPos.y, -1.0f, +1.0f);
+    glMatrixMode(GL_MODELVIEW);
+    glPushMatrix();
+    glLoadIdentity();
+}
+
+// OpenGL2 Render function.
+// (this used to be set in io.RenderDrawListsFn and called by ImGui::Render(), but you can now call this directly from your main loop)
+// Note that this implementation is little overcomplicated because we are saving/setting up/restoring every OpenGL state explicitly, in order to be able to run within any OpenGL engine that doesn't do so.
+void ImGuiImplOpenGL2RenderDrawData(ImDrawData* draw_data)
+{
+    // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
+    int fb_width = cast(int)(draw_data.DisplaySize.x * draw_data.FramebufferScale.x);
+    int fb_height = cast(int)(draw_data.DisplaySize.y * draw_data.FramebufferScale.y);
+    if (fb_width == 0 || fb_height == 0)
+        return;
+
+    // Backup GL state
+    GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
+    GLint[2] last_polygon_mode; glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode.ptr);
+    GLint[4] last_viewport; glGetIntegerv(GL_VIEWPORT, last_viewport.ptr);
+    GLint[4] last_scissor_box; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box.ptr);
+    glPushAttrib(GL_ENABLE_BIT | GL_COLOR_BUFFER_BIT | GL_TRANSFORM_BIT);
+
+    // Setup desired GL state
+    ImGuiImplOpenGL2SetupRenderState(draw_data, fb_width, fb_height);
+
+    // Will project scissor/clipping rectangles into framebuffer space
+    ImVec2 clip_off = draw_data.DisplayPos;         // (0,0) unless using multi-viewports
+    ImVec2 clip_scale = draw_data.FramebufferScale; // (1,1) unless using retina display which are often (2,2)
+
+    // Render command lists
+    for (int n = 0; n < draw_data.CmdListsCount; n++)
+    {
+        ImDrawList* cmd_list = draw_data.CmdLists[n];
+        ImDrawVert* vtx_buffer = cmd_list.VtxBuffer.Data;
+        ImDrawIdx* idx_buffer = cmd_list.IdxBuffer.Data;
+        glVertexPointer(2, GL_FLOAT, ImDrawVert.sizeof, cast(const GLvoid*)(cast(const char*)vtx_buffer + ImDrawVert.pos.offsetof));
+        glTexCoordPointer(2, GL_FLOAT, ImDrawVert.sizeof, cast(const GLvoid*)(cast(const char*)vtx_buffer + ImDrawVert.uv.offsetof));
+        glColorPointer(4, GL_UNSIGNED_BYTE, ImDrawVert.sizeof, cast(const GLvoid*)(cast(const char*)vtx_buffer + ImDrawVert.col.offsetof));
+
+        for (int cmd_i = 0; cmd_i < cmd_list.CmdBuffer.Size; cmd_i++)
+        {
+            const ImDrawCmd* pcmd = &cmd_list.CmdBuffer.Data[cmd_i];
+            if (pcmd.UserCallback)
+            {
+                // User callback, registered via ImDrawList::AddCallback()
+                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
+                /*if (pcmd.UserCallback == &ImDrawCallback_ResetRenderState)
+                    ImGui_ImplOpenGL2_SetupRenderState(draw_data, fb_width, fb_height);
+                else*/
+                    pcmd.UserCallback(cmd_list, pcmd);
+            }
+            else
+            {
+                // Project scissor/clipping rectangles into framebuffer space
+                ImVec4 clip_rect = ImVec4(0,0,0,0);
+                clip_rect.x = (pcmd.ClipRect.x - clip_off.x) * clip_scale.x;
+                clip_rect.y = (pcmd.ClipRect.y - clip_off.y) * clip_scale.y;
+                clip_rect.z = (pcmd.ClipRect.z - clip_off.x) * clip_scale.x;
+                clip_rect.w = (pcmd.ClipRect.w - clip_off.y) * clip_scale.y;
+
+                if (clip_rect.x < fb_width && clip_rect.y < fb_height && clip_rect.z >= 0.0f && clip_rect.w >= 0.0f)
+                {
+                    // Apply scissor/clipping rectangle
+                    glScissor(cast(int)clip_rect.x, cast(int)(fb_height - clip_rect.w), cast(int)(clip_rect.z - clip_rect.x), cast(int)(clip_rect.w - clip_rect.y));
+
+                    // Bind texture, Draw
+                    glBindTexture(GL_TEXTURE_2D, cast(GLuint)pcmd.TextureId);
+                    glDrawElements(GL_TRIANGLES, cast(GLsizei)pcmd.ElemCount, ImDrawIdx.sizeof == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer);
+                }
+            }
+            idx_buffer += pcmd.ElemCount;
+        }
+    }
+
+    // Restore modified GL state
+    glDisableClientState(GL_COLOR_ARRAY);
+    glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+    glDisableClientState(GL_VERTEX_ARRAY);
+    glBindTexture(GL_TEXTURE_2D, cast(GLuint)last_texture);
+    glMatrixMode(GL_MODELVIEW);
+    glPopMatrix();
+    glMatrixMode(GL_PROJECTION);
+    glPopMatrix();
+    glPopAttrib();
+    glPolygonMode(GL_FRONT, cast(GLenum)last_polygon_mode[0]); glPolygonMode(GL_BACK, cast(GLenum)last_polygon_mode[1]);
+    glViewport(last_viewport[0], last_viewport[1], cast(GLsizei)last_viewport[2], cast(GLsizei)last_viewport[3]);
+    glScissor(last_scissor_box[0], last_scissor_box[1], cast(GLsizei)last_scissor_box[2], cast(GLsizei)last_scissor_box[3]);
+}
+
+bool ImGuiImplOpenGL2CreateFontsTexture()
+{
+    // Build texture atlas
+    ImGuiIO* io = igGetIO();
+    ubyte* pixels;
+    int width, height;
+    int bpp;
+    ImFontAtlas_GetTexDataAsRGBA32(io.Fonts, &pixels, &width, &height, &bpp);   // Load as RGBA 32-bits (75% of the memory is wasted, but default font is so small) because it is more likely to be compatible with user's existing shaders. If your ImTextureId represent a higher-level concept than just a GL texture id, consider calling GetTexDataAsAlpha8() instead to save on GPU memory.
+
+    // Upload texture to graphics system
+    GLint last_texture;
+    glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
+    glGenTextures(1, &g_FontTexture);
+    glBindTexture(GL_TEXTURE_2D, g_FontTexture);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+    glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
+
+    // Store our identifier
+    io.Fonts.TexID = cast(ImTextureID)g_FontTexture;
+
+    // Restore state
+    glBindTexture(GL_TEXTURE_2D, last_texture);
+
+    return true;
+}
+
+void ImGuiImplOpenGL2DestroyFontsTexture()
+{
+    if (g_FontTexture)
+    {
+        ImGuiIO* io = igGetIO();
+        glDeleteTextures(1, &g_FontTexture);
+        io.Fonts.TexID = null;
+        g_FontTexture = 0;
+    }
+}
+
+bool ImGuiImplOpenGL2CreateDeviceObjects()
+{
+    return ImGuiImplOpenGL2CreateFontsTexture();
+}
+
+void ImGuiImplOpenGL2DestroyDeviceObjects()
+{
+    ImGuiImplOpenGL2DestroyFontsTexture();
+}

demos/utils/source/ecs_utils/imgui_styles.d

@@ -0,0 +1,95 @@
+module ecs_utils.imgui_styles;
+
+import cimgui.cimgui;
+
+void setStyle(uint index)
+{
+    ImGuiStyle * style = igGetStyle();
+    ImVec4 * colors = style.Colors.ptr;
+    
+	switch(index)
+    {
+        case 0:
+            igStyleColorsClassic(style);
+            break;
+        case 1:
+            igStyleColorsDark(style);
+            break;
+        case 2:
+            igStyleColorsLight(style);
+            break;
+        case 3: 
+            colors[ImGuiCol_Text] = ImVec4(0.95f, 0.96f, 0.98f, 1.00f);
+            colors[ImGuiCol_TextDisabled] = ImVec4(0.36f, 0.42f, 0.47f, 1.00f);
+            colors[ImGuiCol_WindowBg] = ImVec4(0.11f, 0.15f, 0.17f, 1.00f);
+            colors[ImGuiCol_ChildBg] = ImVec4(0.15f, 0.18f, 0.22f, 1.00f);
+            colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
+            colors[ImGuiCol_Border] = ImVec4(0.08f, 0.10f, 0.12f, 1.00f);
+            colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+            colors[ImGuiCol_FrameBg] = ImVec4(0.20f, 0.25f, 0.29f, 1.00f);
+            colors[ImGuiCol_FrameBgHovered] = ImVec4(0.12f, 0.20f, 0.28f, 1.00f);
+            colors[ImGuiCol_FrameBgActive] = ImVec4(0.09f, 0.12f, 0.14f, 1.00f);
+            colors[ImGuiCol_TitleBg] = ImVec4(0.09f, 0.12f, 0.14f, 0.65f);
+            colors[ImGuiCol_TitleBgActive] = ImVec4(0.08f, 0.10f, 0.12f, 1.00f);
+            colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
+            colors[ImGuiCol_MenuBarBg] = ImVec4(0.15f, 0.18f, 0.22f, 1.00f);
+            colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.39f);
+            colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.20f, 0.25f, 0.29f, 1.00f);
+            colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.18f, 0.22f, 0.25f, 1.00f);
+            colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.09f, 0.21f, 0.31f, 1.00f);
+            colors[ImGuiCol_CheckMark] = ImVec4(0.28f, 0.56f, 1.00f, 1.00f);
+            colors[ImGuiCol_SliderGrab] = ImVec4(0.28f, 0.56f, 1.00f, 1.00f);
+            colors[ImGuiCol_SliderGrabActive] = ImVec4(0.37f, 0.61f, 1.00f, 1.00f);
+            colors[ImGuiCol_Button] = ImVec4(0.20f, 0.25f, 0.29f, 1.00f);
+            colors[ImGuiCol_ButtonHovered] = ImVec4(0.28f, 0.56f, 1.00f, 1.00f);
+            colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
+            colors[ImGuiCol_Header] = ImVec4(0.20f, 0.25f, 0.29f, 0.55f);
+            colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
+            colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+            colors[ImGuiCol_Separator] = ImVec4(0.20f, 0.25f, 0.29f, 1.00f);
+            colors[ImGuiCol_SeparatorHovered] = ImVec4(0.10f, 0.40f, 0.75f, 0.78f);
+            colors[ImGuiCol_SeparatorActive] = ImVec4(0.10f, 0.40f, 0.75f, 1.00f);
+            colors[ImGuiCol_ResizeGrip] = ImVec4(0.26f, 0.59f, 0.98f, 0.25f);
+            colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
+            colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
+            colors[ImGuiCol_Tab] = ImVec4(0.11f, 0.15f, 0.17f, 1.00f);
+            colors[ImGuiCol_TabHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
+            colors[ImGuiCol_TabActive] = ImVec4(0.20f, 0.25f, 0.29f, 1.00f);
+            colors[ImGuiCol_TabUnfocused] = ImVec4(0.11f, 0.15f, 0.17f, 1.00f);
+            colors[ImGuiCol_TabUnfocusedActive] = ImVec4(0.11f, 0.15f, 0.17f, 1.00f);
+            colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
+            colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
+            colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
+            colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
+            colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
+            colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
+            colors[ImGuiCol_NavHighlight] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+            colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
+            colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
+            colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
+
+            style.PopupRounding = 3;
+
+            style.WindowPadding = ImVec2(4, 4);
+            style.FramePadding  = ImVec2(6, 4);
+            style.ItemSpacing   = ImVec2(6, 2);
+
+            style.ScrollbarSize = 18;
+
+            style.WindowBorderSize = 1;
+            style.ChildBorderSize  = 1;
+            style.PopupBorderSize  = 1;
+            style.FrameBorderSize  = 0; 
+
+            style.WindowRounding    = 3;
+            style.ChildRounding     = 3;
+            style.FrameRounding     = 4;
+            style.ScrollbarRounding = 2;
+            style.GrabRounding      = 4;
+            break;
+        default:
+            igStyleColorsClassic(style);
+            break;
+    }
+	
+}

demos/utils/source/ecs_utils/utils.d

@@ -0,0 +1,183 @@
+module ecs_utils.utils;
+
+extern(C):
+
+int randomRange(int min, int max)
+{
+	int range = max - min;
+	return rand() % range - min;
+}
+
+float randomf()
+{
+	const float scale = 1.0 / 32_767.0;
+	return cast(float)(rand() & 0x007FFF) * scale;
+}
+
+/*
+float randomRangef(float min, float max)
+{
+	//int range = max - min;
+	return rand()%4096;
+}*/
+
+extern(C) int printf(scope const char* format, ...) @nogc nothrow @system;
+extern(C) int rand();
+
+version(D_BetterC)
+{
+	version(LDC)
+	{
+		extern(C) bool _d_enter_cleanup(void*)
+		{
+			return true;
+		}
+
+		extern(C) void _d_leave_cleanup(void*)
+		{
+
+		}
+
+		extern(C) void _d_array_slice_copy(void* dst, size_t dstlen, void* src, size_t srclen, size_t elemsz)
+		{
+				import ldc.intrinsics : llvm_memcpy;
+				llvm_memcpy!size_t(dst, src, dstlen * elemsz, 0);
+		}
+	}
+}
+
+
+
+version(WebAssembly)
+{
+
+	enum EMSCRIPTEN_RESULT_SUCCESS             =  0;
+	enum EMSCRIPTEN_RESULT_DEFERRED            =  1;
+	enum EMSCRIPTEN_RESULT_NOT_SUPPORTED       = -1;
+	enum EMSCRIPTEN_RESULT_FAILED_NOT_DEFERRED = -2;
+	enum EMSCRIPTEN_RESULT_INVALID_TARGET      = -3;
+	enum EMSCRIPTEN_RESULT_UNKNOWN_TARGET      = -4;
+	enum EMSCRIPTEN_RESULT_INVALID_PARAM       = -5;
+	enum EMSCRIPTEN_RESULT_FAILED              = -6;
+	enum EMSCRIPTEN_RESULT_NO_DATA             = -7;
+	enum EMSCRIPTEN_RESULT_TIMED_OUT           = -8;
+
+	alias EMSCRIPTEN_FULLSCREEN_SCALE = int;
+	enum EMSCRIPTEN_FULLSCREEN_SCALE_DEFAULT = 0;
+	enum EMSCRIPTEN_FULLSCREEN_SCALE_STRETCH = 1;
+	enum EMSCRIPTEN_FULLSCREEN_SCALE_ASPECT = 2;
+	enum EMSCRIPTEN_FULLSCREEN_SCALE_CENTER = 3;
+
+	alias EMSCRIPTEN_FULLSCREEN_CANVAS_SCALE = int;
+	enum EMSCRIPTEN_FULLSCREEN_CANVAS_SCALE_NONE = 0;
+	enum EMSCRIPTEN_FULLSCREEN_CANVAS_SCALE_STDDEF = 1;
+	enum EMSCRIPTEN_FULLSCREEN_CANVAS_SCALE_HIDEF = 2;
+
+	alias EMSCRIPTEN_FULLSCREEN_FILTERING = int;
+	enum EMSCRIPTEN_FULLSCREEN_FILTERING_DEFAULT = 0;
+	enum EMSCRIPTEN_FULLSCREEN_FILTERING_NEAREST = 1;
+	enum EMSCRIPTEN_FULLSCREEN_FILTERING_BILINEAR = 2;
+
+	alias em_canvasresized_callback_func = extern(C) bool function (int eventType, const void *reserved, void *userData);
+
+	struct EmscriptenFullscreenStrategy {
+		EMSCRIPTEN_FULLSCREEN_SCALE scaleMode;
+		EMSCRIPTEN_FULLSCREEN_CANVAS_SCALE canvasResolutionScaleMode;
+		EMSCRIPTEN_FULLSCREEN_FILTERING filteringMode;
+		em_canvasresized_callback_func canvasResizedCallback;
+		void *canvasResizedCallbackUserData;
+	}
+
+	extern (C) const (char)* emscripten_result_to_string(int result) {
+		if (result == EMSCRIPTEN_RESULT_SUCCESS) return "EMSCRIPTEN_RESULT_SUCCESS";
+		if (result == EMSCRIPTEN_RESULT_DEFERRED) return "EMSCRIPTEN_RESULT_DEFERRED";
+		if (result == EMSCRIPTEN_RESULT_NOT_SUPPORTED) return "EMSCRIPTEN_RESULT_NOT_SUPPORTED";
+		if (result == EMSCRIPTEN_RESULT_FAILED_NOT_DEFERRED) return "EMSCRIPTEN_RESULT_FAILED_NOT_DEFERRED";
+		if (result == EMSCRIPTEN_RESULT_INVALID_TARGET) return "EMSCRIPTEN_RESULT_INVALID_TARGET";
+		if (result == EMSCRIPTEN_RESULT_UNKNOWN_TARGET) return "EMSCRIPTEN_RESULT_UNKNOWN_TARGET";
+		if (result == EMSCRIPTEN_RESULT_INVALID_PARAM) return "EMSCRIPTEN_RESULT_INVALID_PARAM";
+		if (result == EMSCRIPTEN_RESULT_FAILED) return "EMSCRIPTEN_RESULT_FAILED";
+		if (result == EMSCRIPTEN_RESULT_NO_DATA) return "EMSCRIPTEN_RESULT_NO_DATA";
+		return "Unknown EMSCRIPTEN_RESULT!";
+	}
+
+    extern (C) alias em_callback_func = void function();
+    extern (C) alias em_arg_callback_func = void function(void*);
+    extern (C) void emscripten_set_main_loop(em_callback_func func, int fps, int simulate_infinite_loop);
+    extern (C) void emscripten_set_main_loop_arg(em_arg_callback_func func, void *arg, int fps, int simulate_infinite_loop);
+    extern (C) int emscripten_set_main_loop_timing(int mode, int value);
+    extern (C) void emscripten_cancel_main_loop();
+	extern (C) int emscripten_request_fullscreen_strategy(const char *target, bool deferUntilInEventHandler, const EmscriptenFullscreenStrategy *fullscreenStrategy);
+	extern (C) int emscripten_enter_soft_fullscreen(const char *target, const EmscriptenFullscreenStrategy *fullscreenStrategy);
+
+	alias int time_t;
+	alias int clockid_t;
+	enum CLOCK_REALTIME = 0;
+
+	struct timespec
+	{
+		time_t  tv_sec;
+		int     tv_nsec;
+	}
+
+	extern(C) int clock_gettime(clockid_t, timespec*) @nogc nothrow @system;
+
+	struct Time
+    {
+		
+
+        static long getUSecTime()
+        {
+			time_t time;
+			timespec spec;
+
+			clock_gettime(CLOCK_REALTIME, &spec);
+
+			//time = spec.tv_sec;
+			return spec.tv_sec * 1000_000 + spec.tv_nsec / 1000;//time / 1000_000;
+			
+			/*LARGE_INTEGER time, freq;
+            QueryPerformanceFrequency(&freq);
+			QueryPerformanceCounter(&time);
+            return time.QuadPart / (freq.QuadPart / 1000_000);*/
+        }
+    }
+}
+else version(Windows)
+{
+	import core.stdc.stdio : printf;
+	import core.sys.windows.windows;
+	struct Time
+    {
+        static long getUSecTime()
+        {
+            LARGE_INTEGER time, freq;
+            QueryPerformanceFrequency(&freq);
+			QueryPerformanceCounter(&time);
+            return time.QuadPart / (freq.QuadPart / 1000_000);
+        }
+    }
+}
+else version(Posix)
+{
+	import core.stdc.stdio : printf;
+	import core.sys.posix.time;
+	struct Time
+    {
+        static long getUSecTime()
+        {
+			time_t time;
+			timespec spec;
+
+			clock_gettime(CLOCK_REALTIME, &spec);
+
+			//time = spec.tv_sec;
+			return spec.tv_sec * 1000_000 + spec.tv_nsec / 1000;//time / 1000_000;
+			
+			/*LARGE_INTEGER time, freq;
+            QueryPerformanceFrequency(&freq);
+			QueryPerformanceCounter(&time);
+            return time.QuadPart / (freq.QuadPart / 1000_000);*/
+        }
+    }
+}

dub.json

@@ -10,6 +10,9 @@
 	"dflagss": [
 		"-betterC"
 	],
+	"excludedSourceFiles":[
+		"source\/ecs\/traits.d"
+	],
 	"configurations" : [
 		{
 			"name" : "library",

source/ecs/vector.d

@@ -29,7 +29,7 @@ public:
 
 	}
 
-	/*static if (isCopyable!T) {
+	static if (isCopyable!T) {
 		export this(this) {
 			T[] tmp = array[0 .. used];
 			array = null;
@@ -38,9 +38,9 @@ public:
 		}
 	} else {
 		@disable this(this);
-	}*/
+	}
 
-	@disable this(this);
+	//@disable this(this);
 
 	export ~this() {
 		clear();