1
2 /*
3 * Copyright 2012 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8
9
10 #include "gl/GrGLInterface.h"
11
12 #ifndef GL_GLEXT_PROTOTYPES
13 #define GL_GLEXT_PROTOTYPES
14 #endif
15
16 #include "GLES2/gl2.h"
17 #include "GLES2/gl2ext.h"
18 #include "EGL/egl.h"
19
20 #define GR_GET_PROC(procType, baseName) \
21 interface->f ## baseName = (procType) GetProcAddress(ghANGLELib, "gl" #baseName);
22
GrGLCreateANGLEInterface()23 const GrGLInterface* GrGLCreateANGLEInterface() {
24
25 static SkAutoTUnref<GrGLInterface> glInterface;
26 static HMODULE ghANGLELib = NULL;
27
28 if (NULL == ghANGLELib) {
29 // We load the ANGLE library and never let it go
30 ghANGLELib = LoadLibrary("libGLESv2.dll");
31 }
32 if (NULL == ghANGLELib) {
33 // We can't setup the interface correctly w/o the DLL
34 return NULL;
35 }
36
37 if (!glInterface.get()) {
38 GrGLInterface* interface = new GrGLInterface;
39 glInterface.reset(interface);
40 interface->fBindingsExported = kES2_GrGLBinding;
41
42 GR_GET_PROC(GrGLActiveTextureProc, ActiveTexture);
43 GR_GET_PROC(GrGLAttachShaderProc, AttachShader);
44 GR_GET_PROC(GrGLBindAttribLocationProc, BindAttribLocation);
45 GR_GET_PROC(GrGLBindBufferProc, BindBuffer);
46 GR_GET_PROC(GrGLBindTextureProc, BindTexture);
47 GR_GET_PROC(GrGLBlendColorProc, BlendColor);
48 GR_GET_PROC(GrGLBlendFuncProc, BlendFunc);
49 GR_GET_PROC(GrGLBufferDataProc, BufferData);
50 GR_GET_PROC(GrGLBufferSubDataProc, BufferSubData);
51 GR_GET_PROC(GrGLClearProc, Clear);
52 GR_GET_PROC(GrGLClearColorProc, ClearColor);
53 GR_GET_PROC(GrGLClearStencilProc, ClearStencil);
54 GR_GET_PROC(GrGLColorMaskProc, ColorMask);
55 GR_GET_PROC(GrGLCompileShaderProc, CompileShader);
56 GR_GET_PROC(GrGLCompressedTexImage2DProc, CompressedTexImage2D);
57 GR_GET_PROC(GrGLCreateProgramProc, CreateProgram);
58 GR_GET_PROC(GrGLCreateShaderProc, CreateShader);
59 GR_GET_PROC(GrGLCullFaceProc, CullFace);
60 GR_GET_PROC(GrGLDeleteBuffersProc, DeleteBuffers);
61 GR_GET_PROC(GrGLDeleteProgramProc, DeleteProgram);
62 GR_GET_PROC(GrGLDeleteShaderProc, DeleteShader);
63 GR_GET_PROC(GrGLDeleteTexturesProc, DeleteTextures);
64 GR_GET_PROC(GrGLDepthMaskProc, DepthMask);
65 GR_GET_PROC(GrGLDisableProc, Disable);
66 GR_GET_PROC(GrGLDisableVertexAttribArrayProc, DisableVertexAttribArray);
67 GR_GET_PROC(GrGLDrawArraysProc, DrawArrays);
68 GR_GET_PROC(GrGLDrawElementsProc, DrawElements);
69 GR_GET_PROC(GrGLEnableProc, Enable);
70 GR_GET_PROC(GrGLEnableVertexAttribArrayProc, EnableVertexAttribArray);
71 GR_GET_PROC(GrGLFinishProc, Finish);
72 GR_GET_PROC(GrGLFlushProc, Flush);
73 GR_GET_PROC(GrGLFrontFaceProc, FrontFace);
74 GR_GET_PROC(GrGLGenBuffersProc, GenBuffers);
75 GR_GET_PROC(GrGLGenTexturesProc, GenTextures);
76 GR_GET_PROC(GrGLGetBufferParameterivProc, GetBufferParameteriv);
77 GR_GET_PROC(GrGLGetErrorProc, GetError);
78 GR_GET_PROC(GrGLGetIntegervProc, GetIntegerv);
79 GR_GET_PROC(GrGLGetProgramInfoLogProc, GetProgramInfoLog);
80 GR_GET_PROC(GrGLGetProgramivProc, GetProgramiv);
81 GR_GET_PROC(GrGLGetShaderInfoLogProc, GetShaderInfoLog);
82 GR_GET_PROC(GrGLGetShaderivProc, GetShaderiv);
83 GR_GET_PROC(GrGLGetStringProc, GetString);
84 GR_GET_PROC(GrGLGetUniformLocationProc, GetUniformLocation);
85 GR_GET_PROC(GrGLLineWidthProc, LineWidth);
86 GR_GET_PROC(GrGLLinkProgramProc, LinkProgram);
87 GR_GET_PROC(GrGLPixelStoreiProc, PixelStorei);
88 GR_GET_PROC(GrGLReadPixelsProc, ReadPixels);
89 GR_GET_PROC(GrGLScissorProc, Scissor);
90 GR_GET_PROC(GrGLShaderSourceProc, ShaderSource);
91 GR_GET_PROC(GrGLStencilFuncProc, StencilFunc);
92 GR_GET_PROC(GrGLStencilFuncSeparateProc, StencilFuncSeparate);
93 GR_GET_PROC(GrGLStencilMaskProc, StencilMask);
94 GR_GET_PROC(GrGLStencilMaskSeparateProc, StencilMaskSeparate);
95 GR_GET_PROC(GrGLStencilOpProc, StencilOp);
96 GR_GET_PROC(GrGLStencilOpSeparateProc, StencilOpSeparate);
97 GR_GET_PROC(GrGLTexImage2DProc, TexImage2D);
98 GR_GET_PROC(GrGLTexParameteriProc, TexParameteri);
99 GR_GET_PROC(GrGLTexParameterivProc, TexParameteriv);
100 GR_GET_PROC(GrGLTexSubImage2DProc, TexSubImage2D);
101 #if GL_ARB_texture_storage
102 GR_GET_PROC(GrGLTexStorage2DProc, TexStorage2D);
103 #elif GL_EXT_texture_storage
104 interface->fTexStorage2D = (GrGLTexStorage2DProc)
105 GetProcAddress(ghANGLELib,
106 "glTexStorage2DEXT");
107 #endif
108 GR_GET_PROC(GrGLUniform1fProc, Uniform1f);
109 GR_GET_PROC(GrGLUniform1iProc, Uniform1i);
110 GR_GET_PROC(GrGLUniform1fvProc, Uniform1fv);
111 GR_GET_PROC(GrGLUniform1ivProc, Uniform1iv);
112
113 GR_GET_PROC(GrGLUniform2fProc, Uniform2f);
114 GR_GET_PROC(GrGLUniform2iProc, Uniform2i);
115 GR_GET_PROC(GrGLUniform2fvProc, Uniform2fv);
116 GR_GET_PROC(GrGLUniform2ivProc, Uniform2iv);
117
118 GR_GET_PROC(GrGLUniform3fProc, Uniform3f);
119 GR_GET_PROC(GrGLUniform3iProc, Uniform3i);
120 GR_GET_PROC(GrGLUniform3fvProc, Uniform3fv);
121 GR_GET_PROC(GrGLUniform3ivProc, Uniform3iv);
122
123 GR_GET_PROC(GrGLUniform4fProc, Uniform4f);
124 GR_GET_PROC(GrGLUniform4iProc, Uniform4i);
125 GR_GET_PROC(GrGLUniform4fvProc, Uniform4fv);
126 GR_GET_PROC(GrGLUniform4ivProc, Uniform4iv);
127
128 GR_GET_PROC(GrGLUniformMatrix2fvProc, UniformMatrix2fv);
129 GR_GET_PROC(GrGLUniformMatrix3fvProc, UniformMatrix3fv);
130 GR_GET_PROC(GrGLUniformMatrix4fvProc, UniformMatrix4fv);
131 GR_GET_PROC(GrGLUseProgramProc, UseProgram);
132 GR_GET_PROC(GrGLVertexAttrib4fvProc, VertexAttrib4fv);
133 GR_GET_PROC(GrGLVertexAttribPointerProc, VertexAttribPointer);
134 GR_GET_PROC(GrGLViewportProc, Viewport);
135 GR_GET_PROC(GrGLBindFramebufferProc, BindFramebuffer);
136 GR_GET_PROC(GrGLBindRenderbufferProc, BindRenderbuffer);
137 GR_GET_PROC(GrGLCheckFramebufferStatusProc, CheckFramebufferStatus);
138 GR_GET_PROC(GrGLDeleteFramebuffersProc, DeleteFramebuffers);
139 GR_GET_PROC(GrGLDeleteRenderbuffersProc, DeleteRenderbuffers);
140 GR_GET_PROC(GrGLFramebufferRenderbufferProc, FramebufferRenderbuffer);
141 GR_GET_PROC(GrGLFramebufferTexture2DProc, FramebufferTexture2D);
142 GR_GET_PROC(GrGLGenFramebuffersProc, GenFramebuffers);
143 GR_GET_PROC(GrGLGenRenderbuffersProc, GenRenderbuffers);
144 GR_GET_PROC(GrGLGetFramebufferAttachmentParameterivProc,
145 GetFramebufferAttachmentParameteriv);
146 GR_GET_PROC(GrGLGetRenderbufferParameterivProc,
147 GetRenderbufferParameteriv);
148 GR_GET_PROC(GrGLRenderbufferStorageProc, RenderbufferStorage);
149
150 interface->fMapBuffer = (PFNGLMAPBUFFEROESPROC) eglGetProcAddress("glMapBufferOES");
151 interface->fUnmapBuffer = (PFNGLUNMAPBUFFEROESPROC) eglGetProcAddress("glUnmapBufferOES");
152 }
153 glInterface.get()->ref();
154 return glInterface.get();
155 }
156