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gerrit-public.fairphone.software / platform / external / skia / 0b77d6892b067ad402c9678b0226bff70599fbe2 / . / gpu / src / win / GrGLDefaultInterface_win.cpp
blob: e5c7369ccb5a0ba75e2ba8393f0b0bffd47a26f5 [file] [log] [blame]
epoger@google.comec3ed6a2011-07-28 14:26:00 +0000[diff] [blame]1
bsalomon@google.comf987d1b2011-04-04 17:13:52 +0000[diff] [blame]2/*
epoger@google.comec3ed6a2011-07-28 14:26:00 +0000[diff] [blame]3 * Copyright 2011 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.
bsalomon@google.comf987d1b2011-04-04 17:13:52 +0000[diff] [blame]7 */
8
epoger@google.comec3ed6a2011-07-28 14:26:00 +0000[diff] [blame]9
bsalomon@google.comf987d1b2011-04-04 17:13:52 +0000[diff] [blame]10#include "GrGLInterface.h"
11
12#include <Windows.h>
13#include <GL/GL.h>
14
15/*
16 * Windows makes the GL funcs all be __stdcall instead of __cdecl :(
17 * This implementation will only work if GR_GL_FUNCTION_TYPE is __stdcall.
18 * Otherwise, a springboard would be needed that hides the calling convention.
19 */
20
bsalomon@google.com0b77d682011-08-19 13:28:54 +0000[diff] [blame^]21#define GR_GL_GET_PROC(F) defaultInterface->f ## F = (GrGL ## F ## Proc) wglGetProcAddress("gl" #F);
22#define GR_GL_GET_PROC_SUFFIX(F, S) defaultInterface->f ## F = (GrGL ## F ## Proc) wglGetProcAddress("gl" #F #S);
bsalomon@google.comf987d1b2011-04-04 17:13:52 +0000[diff] [blame]23
bsalomon@google.com0b77d682011-08-19 13:28:54 +0000[diff] [blame^]24void GrGLInitializeDefaultGLInterface() {
tomhudson@google.com747bf292011-06-14 18:16:52 +0000[diff] [blame]25
bsalomon@google.com0b77d682011-08-19 13:28:54 +0000[diff] [blame^]26 // wglGetProcAddress requires a context.
27 if (NULL != wglGetCurrentContext()) {
28 int major, minor;
29 const char* versionString = (const char*) glGetString(GL_VERSION);
30 const char* extString = (const char*) glGetString(GL_EXTENSIONS);
31 gl_version_from_string(&major, &minor, versionString);
bsalomon@google.comf987d1b2011-04-04 17:13:52 +0000[diff] [blame]32
bsalomon@google.com0b77d682011-08-19 13:28:54 +0000[diff] [blame^]33 if (major == 1 && minor < 5) {
34 // We must have array and element_array buffer objects.
35 return;
bsalomon@google.comf987d1b2011-04-04 17:13:52 +0000[diff] [blame]36 }
bsalomon@google.com0b77d682011-08-19 13:28:54 +0000[diff] [blame^]37 GrGLInterface* defaultInterface = new GrGLInterface();
38
39 defaultInterface->fNPOTRenderTargetSupport = kProbe_GrGLCapability;
40 defaultInterface->fMinRenderTargetHeight = kProbe_GrGLCapability;
41 defaultInterface->fMinRenderTargetWidth = kProbe_GrGLCapability;
42
43 // Functions that are part of GL 1.1 will return NULL in
44 // wglGetProcAddress
45 defaultInterface->fBlendFunc = glBlendFunc;
46 defaultInterface->fClear = glClear;
47 defaultInterface->fClearColor = glClearColor;
48 defaultInterface->fClearStencil = glClearStencil;
49 defaultInterface->fColor4ub = glColor4ub;
50 defaultInterface->fColorMask = glColorMask;
51 defaultInterface->fColorPointer = glColorPointer;
52 defaultInterface->fCullFace = glCullFace;
53 defaultInterface->fDeleteTextures = glDeleteTextures;
54 defaultInterface->fDepthMask = glDepthMask;
55 defaultInterface->fDisable = glDisable;
56 defaultInterface->fDisableClientState = glDisableClientState;
57 defaultInterface->fDrawArrays = glDrawArrays;
58 defaultInterface->fDrawElements = glDrawElements;
59 defaultInterface->fDrawBuffer = glDrawBuffer;
60 defaultInterface->fEnable = glEnable;
61 defaultInterface->fEnableClientState = glEnableClientState;
62 defaultInterface->fFrontFace = glFrontFace;
63 defaultInterface->fGenTextures = glGenTextures;
64 defaultInterface->fGetError = glGetError;
65 defaultInterface->fGetIntegerv = glGetIntegerv;
66 defaultInterface->fGetString = glGetString;
67 defaultInterface->fGetTexLevelParameteriv = glGetTexLevelParameteriv;
68 defaultInterface->fLineWidth = glLineWidth;
69 defaultInterface->fLoadMatrixf = glLoadMatrixf;
70 defaultInterface->fMatrixMode = glMatrixMode;
71 defaultInterface->fPixelStorei = glPixelStorei;
72 defaultInterface->fPointSize = glPointSize;
73 defaultInterface->fReadBuffer = glReadBuffer;
74 defaultInterface->fReadPixels = glReadPixels;
75 defaultInterface->fScissor = glScissor;
76 defaultInterface->fShadeModel = glShadeModel;
77 defaultInterface->fStencilFunc = glStencilFunc;
78 defaultInterface->fStencilMask = glStencilMask;
79 defaultInterface->fStencilOp = glStencilOp;
80 defaultInterface->fTexImage2D = glTexImage2D;
81 defaultInterface->fTexParameteri = glTexParameteri;
82 defaultInterface->fTexCoordPointer = glTexCoordPointer;
83 defaultInterface->fTexEnvi = glTexEnvi;
84 defaultInterface->fTexSubImage2D = glTexSubImage2D;
85 defaultInterface->fViewport = glViewport;
86 defaultInterface->fVertexPointer = glVertexPointer;
87
88 GR_GL_GET_PROC(ActiveTexture);
89 GR_GL_GET_PROC(AttachShader);
90 GR_GL_GET_PROC(BindAttribLocation);
91 GR_GL_GET_PROC(BindBuffer);
92 GR_GL_GET_PROC(BindTexture);
93 GR_GL_GET_PROC(BlendColor);
94 GR_GL_GET_PROC(BufferData);
95 GR_GL_GET_PROC(BufferSubData);
96 GR_GL_GET_PROC(ClientActiveTexture);
97 GR_GL_GET_PROC(CompileShader);
98 GR_GL_GET_PROC(CompressedTexImage2D);
99 GR_GL_GET_PROC(CreateProgram);
100 GR_GL_GET_PROC(CreateShader);
101 GR_GL_GET_PROC(DeleteBuffers);
102 GR_GL_GET_PROC(DeleteProgram);
103 GR_GL_GET_PROC(DeleteShader);
104 GR_GL_GET_PROC(DisableVertexAttribArray);
105 GR_GL_GET_PROC(DrawBuffers);
106 GR_GL_GET_PROC(EnableVertexAttribArray);
107 GR_GL_GET_PROC(GenBuffers);
108 GR_GL_GET_PROC(GetBufferParameteriv);
109 GR_GL_GET_PROC(GetProgramInfoLog);
110 GR_GL_GET_PROC(GetProgramiv);
111 GR_GL_GET_PROC(GetShaderInfoLog);
112 GR_GL_GET_PROC(GetShaderiv);
113 GR_GL_GET_PROC(GetUniformLocation);
114 GR_GL_GET_PROC(LinkProgram);
115 GR_GL_GET_PROC(ShaderSource);
116 GR_GL_GET_PROC(StencilFuncSeparate);
117 GR_GL_GET_PROC(StencilMaskSeparate);
118 GR_GL_GET_PROC(StencilOpSeparate);
119 GR_GL_GET_PROC(Uniform1f);
120 GR_GL_GET_PROC(Uniform1i);
121 GR_GL_GET_PROC(Uniform1fv);
122 GR_GL_GET_PROC(Uniform1iv);
123 GR_GL_GET_PROC(Uniform2f);
124 GR_GL_GET_PROC(Uniform2i);
125 GR_GL_GET_PROC(Uniform2fv);
126 GR_GL_GET_PROC(Uniform2iv);
127 GR_GL_GET_PROC(Uniform3f);
128 GR_GL_GET_PROC(Uniform3i);
129 GR_GL_GET_PROC(Uniform3fv);
130 GR_GL_GET_PROC(Uniform3iv);
131 GR_GL_GET_PROC(Uniform4f);
132 GR_GL_GET_PROC(Uniform4i);
133 GR_GL_GET_PROC(Uniform4fv);
134 GR_GL_GET_PROC(Uniform4iv);
135 GR_GL_GET_PROC(UniformMatrix2fv);
136 GR_GL_GET_PROC(UniformMatrix3fv);
137 GR_GL_GET_PROC(UniformMatrix4fv);
138 GR_GL_GET_PROC(UseProgram);
139 GR_GL_GET_PROC(VertexAttrib4fv);
140 GR_GL_GET_PROC(VertexAttribPointer);
141 GR_GL_GET_PROC(BindFragDataLocationIndexed);
142
143 // First look for GL3.0 FBO or GL_ARB_framebuffer_object (same since
144 // GL_ARB_framebuffer_object doesn't use ARB suffix.)
145 if (major >= 3 || has_gl_extension_from_string("GL_ARB_framebuffer_object", extString)) {
146 GR_GL_GET_PROC(GenFramebuffers);
147 GR_GL_GET_PROC(GetFramebufferAttachmentParameteriv);
148 GR_GL_GET_PROC(GetRenderbufferParameteriv);
149 GR_GL_GET_PROC(BindFramebuffer);
150 GR_GL_GET_PROC(FramebufferTexture2D);
151 GR_GL_GET_PROC(CheckFramebufferStatus);
152 GR_GL_GET_PROC(DeleteFramebuffers);
153 GR_GL_GET_PROC(RenderbufferStorage);
154 GR_GL_GET_PROC(GenRenderbuffers);
155 GR_GL_GET_PROC(DeleteRenderbuffers);
156 GR_GL_GET_PROC(FramebufferRenderbuffer);
157 GR_GL_GET_PROC(BindRenderbuffer);
158 GR_GL_GET_PROC(RenderbufferStorageMultisample);
159 GR_GL_GET_PROC(BlitFramebuffer);
160 } else if (has_gl_extension_from_string("GL_EXT_framebuffer_object", extString)) {
161 GR_GL_GET_PROC_SUFFIX(GenFramebuffers, EXT);
162 GR_GL_GET_PROC_SUFFIX(GetFramebufferAttachmentParameteriv, EXT);
163 GR_GL_GET_PROC_SUFFIX(GetRenderbufferParameteriv, EXT);
164 GR_GL_GET_PROC_SUFFIX(BindFramebuffer, EXT);
165 GR_GL_GET_PROC_SUFFIX(FramebufferTexture2D, EXT);
166 GR_GL_GET_PROC_SUFFIX(CheckFramebufferStatus, EXT);
167 GR_GL_GET_PROC_SUFFIX(DeleteFramebuffers, EXT);
168 GR_GL_GET_PROC_SUFFIX(RenderbufferStorage, EXT);
169 GR_GL_GET_PROC_SUFFIX(GenRenderbuffers, EXT);
170 GR_GL_GET_PROC_SUFFIX(DeleteRenderbuffers, EXT);
171 GR_GL_GET_PROC_SUFFIX(FramebufferRenderbuffer, EXT);
172 GR_GL_GET_PROC_SUFFIX(BindRenderbuffer, EXT);
173 if (has_gl_extension_from_string("GL_EXT_framebuffer_multisample", extString)) {
174 GR_GL_GET_PROC_SUFFIX(RenderbufferStorageMultisample, EXT);
175 }
176 if (has_gl_extension_from_string("GL_EXT_framebuffer_blit", extString)) {
177 GR_GL_GET_PROC_SUFFIX(BlitFramebuffer, EXT);
178 }
179 } else {
180 // we must have FBOs
181 return;
182 }
183 GR_GL_GET_PROC(MapBuffer);
184 GR_GL_GET_PROC(UnmapBuffer);
185
186 defaultInterface->fBindingsExported = kDesktop_GrGLBinding;
187
188 GrGLSetDefaultGLInterface(defaultInterface)->unref();
bsalomon@google.comf987d1b2011-04-04 17:13:52 +0000[diff] [blame]189 }
190}