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Issue 254713006: Common GrGLInterface OpenGL setup function. (Closed) Base URL: https://skia.googlesource.com/skia.git@grgl
Patch Set: Address additional comment Created 6 years, 7 months ago
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1
2 /* 1 /*
3 * Copyright 2011 Google Inc. 2 * Copyright 2014 Google Inc.
4 * 3 *
5 * Use of this source code is governed by a BSD-style license that can be 4 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file. 5 * found in the LICENSE file.
7 */ 6 */
8 7
9 8
10 #include "gl/GrGLInterface.h" 9 #include "gl/GrGLInterface.h"
11 #include "../GrGLUtil.h" 10 #include "gl/GrGLAssembleInterface.h"
12 11
13 #include <GL/glx.h> 12 #include <GL/glx.h>
14 #include <GL/gl.h>
15 #include <GL/glext.h>
16 #include <GL/glu.h>
17 13
18 #define GET_PROC(F) interface->fFunctions.f ## F = (GrGL ## F ## Proc) \ 14 static GrGLFuncPtr glx_get(void* ctx, const char name[]) {
19 glXGetProcAddress(reinterpret_cast<const GLubyte*>("gl" #F)); 15 SkASSERT(NULL == ctx);
20 #define GET_PROC_SUFFIX(F, S) interface->fFunctions.f ## F = (GrGL ## F ## Proc) \ 16 SkASSERT(NULL != glXGetCurrentContext());
21 glXGetProcAddress(reinterpret_cast<const GLubyte*>("gl" #F #S)); 17 return glXGetProcAddress(reinterpret_cast<const GLubyte*>(name));
18 }
22 19
23 const GrGLInterface* GrGLCreateNativeInterface() { 20 const GrGLInterface* GrGLCreateNativeInterface() {
24 if (NULL == glXGetCurrentContext()) { 21 if (NULL == glXGetCurrentContext()) {
25 return NULL; 22 return NULL;
26 } 23 }
24 return GrGLAssembleGLInterface(NULL, glx_get);
25 }
27 26
28 const char* versionString = (const char*) glGetString(GL_VERSION);
29 GrGLVersion glVer = GrGLGetVersionFromString(versionString);
30
31 // This may or may not succeed depending on the gl version.
32 GrGLGetStringiProc glGetStringi =
33 (GrGLGetStringiProc) glXGetProcAddress(reinterpret_cast<const GLubyte*>( "glGetStringi"));
34
35 GrGLExtensions extensions;
36 if (!extensions.init(kGL_GrGLStandard, glGetString, glGetStringi, glGetInteg erv)) {
37 return NULL;
38 }
39
40 if (glVer < GR_GL_VER(1,5)) {
41 // We must have array and element_array buffer objects.
42 return NULL;
43 }
44
45 GrGLInterface* interface = SkNEW(GrGLInterface());
46 GrGLInterface::Functions* functions = &interface->fFunctions;
47
48 functions->fActiveTexture = glActiveTexture;
49 GET_PROC(AttachShader);
50 GET_PROC(BindAttribLocation);
51 GET_PROC(BindBuffer);
52 GET_PROC(BindFragDataLocation);
53 GET_PROC(BeginQuery);
54 functions->fBindTexture = glBindTexture;
55 functions->fBlendFunc = glBlendFunc;
56
57 if (glVer >= GR_GL_VER(1,4) ||
58 extensions.has("GL_ARB_imaging") ||
59 extensions.has("GL_EXT_blend_color")) {
60 GET_PROC(BlendColor);
61 }
62
63 GET_PROC(BufferData);
64 GET_PROC(BufferSubData);
65 functions->fClear = glClear;
66 functions->fClearColor = glClearColor;
67 functions->fClearStencil = glClearStencil;
68 functions->fColorMask = glColorMask;
69 GET_PROC(CompileShader);
70 functions->fCompressedTexImage2D = glCompressedTexImage2D;
71 functions->fCopyTexSubImage2D = glCopyTexSubImage2D;
72 GET_PROC(CreateProgram);
73 GET_PROC(CreateShader);
74 functions->fCullFace = glCullFace;
75 GET_PROC(DeleteBuffers);
76 GET_PROC(DeleteProgram);
77 GET_PROC(DeleteQueries);
78 GET_PROC(DeleteShader);
79 functions->fDeleteTextures = glDeleteTextures;
80 functions->fDepthMask = glDepthMask;
81 functions->fDisable = glDisable;
82 GET_PROC(DisableVertexAttribArray);
83 functions->fDrawArrays = glDrawArrays;
84 functions->fDrawBuffer = glDrawBuffer;
85 GET_PROC(DrawBuffers);
86 functions->fDrawElements = glDrawElements;
87 functions->fEnable = glEnable;
88 GET_PROC(EnableVertexAttribArray);
89 GET_PROC(EndQuery);
90 functions->fFinish = glFinish;
91 functions->fFlush = glFlush;
92 functions->fFrontFace = glFrontFace;
93 GET_PROC(GenBuffers);
94 GET_PROC(GenerateMipmap);
95 GET_PROC(GetBufferParameteriv);
96 functions->fGetError = glGetError;
97 functions->fGetIntegerv = glGetIntegerv;
98 GET_PROC(GetQueryObjectiv);
99 GET_PROC(GetQueryObjectuiv);
100 if (glVer >= GR_GL_VER(3,3) || extensions.has("GL_ARB_timer_query")) {
101 GET_PROC(GetQueryObjecti64v);
102 GET_PROC(GetQueryObjectui64v);
103 GET_PROC(QueryCounter);
104 } else if (extensions.has("GL_EXT_timer_query")) {
105 GET_PROC_SUFFIX(GetQueryObjecti64v, EXT);
106 GET_PROC_SUFFIX(GetQueryObjectui64v, EXT);
107 }
108 GET_PROC(GetQueryiv);
109 GET_PROC(GetProgramInfoLog);
110 GET_PROC(GetProgramiv);
111 GET_PROC(GetShaderInfoLog);
112 GET_PROC(GetShaderiv);
113 functions->fGetString = glGetString;
114 GET_PROC(GetStringi);
115 functions->fGetTexLevelParameteriv = glGetTexLevelParameteriv;
116 GET_PROC(GenQueries);
117 functions->fGenTextures = glGenTextures;
118 GET_PROC(GetUniformLocation);
119 functions->fLineWidth = glLineWidth;
120 GET_PROC(LinkProgram);
121 GET_PROC(MapBuffer);
122 if (extensions.has("GL_EXT_direct_state_access")) {
123 GET_PROC_SUFFIX(MatrixLoadf, EXT);
124 GET_PROC_SUFFIX(MatrixLoadIdentity, EXT);
125 }
126 functions->fPixelStorei = glPixelStorei;
127 functions->fReadBuffer = glReadBuffer;
128 functions->fReadPixels = glReadPixels;
129 functions->fScissor = glScissor;
130 GET_PROC(ShaderSource);
131 functions->fStencilFunc = glStencilFunc;
132 GET_PROC(StencilFuncSeparate);
133 functions->fStencilMask = glStencilMask;
134 GET_PROC(StencilMaskSeparate);
135 functions->fStencilOp = glStencilOp;
136 GET_PROC(StencilOpSeparate);
137 functions->fTexImage2D = glTexImage2D;
138 functions->fTexParameteri = glTexParameteri;
139 functions->fTexParameteriv = glTexParameteriv;
140 if (glVer >= GR_GL_VER(4,2) || extensions.has("GL_ARB_texture_storage")) {
141 GET_PROC(TexStorage2D);
142 } else if (extensions.has("GL_EXT_texture_storage")) {
143 GET_PROC_SUFFIX(TexStorage2D, EXT);
144 }
145 functions->fTexSubImage2D = glTexSubImage2D;
146 GET_PROC(Uniform1f);
147 GET_PROC(Uniform1i);
148 GET_PROC(Uniform1fv);
149 GET_PROC(Uniform1iv);
150 GET_PROC(Uniform2f);
151 GET_PROC(Uniform2i);
152 GET_PROC(Uniform2fv);
153 GET_PROC(Uniform2iv);
154 GET_PROC(Uniform3f);
155 GET_PROC(Uniform3i);
156 GET_PROC(Uniform3fv);
157 GET_PROC(Uniform3iv);
158 GET_PROC(Uniform4f);
159 GET_PROC(Uniform4i);
160 GET_PROC(Uniform4fv);
161 GET_PROC(Uniform4iv);
162 GET_PROC(UniformMatrix2fv);
163 GET_PROC(UniformMatrix3fv);
164 GET_PROC(UniformMatrix4fv);
165 GET_PROC(UnmapBuffer);
166 GET_PROC(UseProgram);
167 GET_PROC(VertexAttrib4fv);
168 GET_PROC(VertexAttribPointer);
169 functions->fViewport = glViewport;
170 GET_PROC(BindFragDataLocationIndexed);
171
172 if (glVer >= GR_GL_VER(3,0) || extensions.has("GL_ARB_vertex_array_object")) {
173 // no ARB suffix for GL_ARB_vertex_array_object
174 GET_PROC(BindVertexArray);
175 GET_PROC(GenVertexArrays);
176 GET_PROC(DeleteVertexArrays);
177 }
178
179 // First look for GL3.0 FBO or GL_ARB_framebuffer_object (same since
180 // GL_ARB_framebuffer_object doesn't use ARB suffix.)
181 if (glVer >= GR_GL_VER(3,0) || extensions.has("GL_ARB_framebuffer_object")) {
182 GET_PROC(GenFramebuffers);
183 GET_PROC(GetFramebufferAttachmentParameteriv);
184 GET_PROC(GetRenderbufferParameteriv);
185 GET_PROC(BindFramebuffer);
186 GET_PROC(FramebufferTexture2D);
187 GET_PROC(CheckFramebufferStatus);
188 GET_PROC(DeleteFramebuffers);
189 GET_PROC(RenderbufferStorage);
190 GET_PROC(GenRenderbuffers);
191 GET_PROC(DeleteRenderbuffers);
192 GET_PROC(FramebufferRenderbuffer);
193 GET_PROC(BindRenderbuffer);
194 GET_PROC(RenderbufferStorageMultisample);
195 GET_PROC(BlitFramebuffer);
196 } else if (extensions.has("GL_EXT_framebuffer_object")) {
197 GET_PROC_SUFFIX(GenFramebuffers, EXT);
198 GET_PROC_SUFFIX(GetFramebufferAttachmentParameteriv, EXT);
199 GET_PROC_SUFFIX(GetRenderbufferParameteriv, EXT);
200 GET_PROC_SUFFIX(BindFramebuffer, EXT);
201 GET_PROC_SUFFIX(FramebufferTexture2D, EXT);
202 GET_PROC_SUFFIX(CheckFramebufferStatus, EXT);
203 GET_PROC_SUFFIX(DeleteFramebuffers, EXT);
204 GET_PROC_SUFFIX(RenderbufferStorage, EXT);
205 GET_PROC_SUFFIX(GenRenderbuffers, EXT);
206 GET_PROC_SUFFIX(DeleteRenderbuffers, EXT);
207 GET_PROC_SUFFIX(FramebufferRenderbuffer, EXT);
208 GET_PROC_SUFFIX(BindRenderbuffer, EXT);
209 if (extensions.has("GL_EXT_framebuffer_multisample")) {
210 GET_PROC_SUFFIX(RenderbufferStorageMultisample, EXT);
211 }
212 if (extensions.has("GL_EXT_framebuffer_blit")) {
213 GET_PROC_SUFFIX(BlitFramebuffer, EXT);
214 }
215 } else {
216 // we must have FBOs
217 delete interface;
218 return NULL;
219 }
220
221 if (extensions.has("GL_NV_path_rendering")) {
222 GET_PROC_SUFFIX(PathCommands, NV);
223 GET_PROC_SUFFIX(PathCoords, NV);
224 GET_PROC_SUFFIX(PathSubCommands, NV);
225 GET_PROC_SUFFIX(PathSubCoords, NV);
226 GET_PROC_SUFFIX(PathString, NV);
227 GET_PROC_SUFFIX(PathGlyphs, NV);
228 GET_PROC_SUFFIX(PathGlyphRange, NV);
229 GET_PROC_SUFFIX(WeightPaths, NV);
230 GET_PROC_SUFFIX(CopyPath, NV);
231 GET_PROC_SUFFIX(InterpolatePaths, NV);
232 GET_PROC_SUFFIX(TransformPath, NV);
233 GET_PROC_SUFFIX(PathParameteriv, NV);
234 GET_PROC_SUFFIX(PathParameteri, NV);
235 GET_PROC_SUFFIX(PathParameterfv, NV);
236 GET_PROC_SUFFIX(PathParameterf, NV);
237 GET_PROC_SUFFIX(PathDashArray, NV);
238 GET_PROC_SUFFIX(GenPaths, NV);
239 GET_PROC_SUFFIX(DeletePaths, NV);
240 GET_PROC_SUFFIX(IsPath, NV);
241 GET_PROC_SUFFIX(PathStencilFunc, NV);
242 GET_PROC_SUFFIX(PathStencilDepthOffset, NV);
243 GET_PROC_SUFFIX(StencilFillPath, NV);
244 GET_PROC_SUFFIX(StencilStrokePath, NV);
245 GET_PROC_SUFFIX(StencilFillPathInstanced, NV);
246 GET_PROC_SUFFIX(StencilStrokePathInstanced, NV);
247 GET_PROC_SUFFIX(PathCoverDepthFunc, NV);
248 GET_PROC_SUFFIX(PathColorGen, NV);
249 GET_PROC_SUFFIX(PathTexGen, NV);
250 GET_PROC_SUFFIX(PathFogGen, NV);
251 GET_PROC_SUFFIX(CoverFillPath, NV);
252 GET_PROC_SUFFIX(CoverStrokePath, NV);
253 GET_PROC_SUFFIX(CoverFillPathInstanced, NV);
254 GET_PROC_SUFFIX(CoverStrokePathInstanced, NV);
255 GET_PROC_SUFFIX(GetPathParameteriv, NV);
256 GET_PROC_SUFFIX(GetPathParameterfv, NV);
257 GET_PROC_SUFFIX(GetPathCommands, NV);
258 GET_PROC_SUFFIX(GetPathCoords, NV);
259 GET_PROC_SUFFIX(GetPathDashArray, NV);
260 GET_PROC_SUFFIX(GetPathMetrics, NV);
261 GET_PROC_SUFFIX(GetPathMetricRange, NV);
262 GET_PROC_SUFFIX(GetPathSpacing, NV);
263 GET_PROC_SUFFIX(GetPathColorGeniv, NV);
264 GET_PROC_SUFFIX(GetPathColorGenfv, NV);
265 GET_PROC_SUFFIX(GetPathTexGeniv, NV);
266 GET_PROC_SUFFIX(GetPathTexGenfv, NV);
267 GET_PROC_SUFFIX(IsPointInFillPath, NV);
268 GET_PROC_SUFFIX(IsPointInStrokePath, NV);
269 GET_PROC_SUFFIX(GetPathLength, NV);
270 GET_PROC_SUFFIX(PointAlongPath, NV);
271 }
272
273 if (extensions.has("GL_EXT_debug_marker")) {
274 GET_PROC_SUFFIX(InsertEventMarker, EXT);
275 GET_PROC_SUFFIX(PushGroupMarker, EXT);
276 GET_PROC_SUFFIX(PopGroupMarker, EXT);
277 }
278
279 if (glVer >= GR_GL_VER(4,3) || extensions.has("GL_ARB_invalidate_subdata")) {
280 GET_PROC(InvalidateBufferData);
281 GET_PROC(InvalidateBufferSubData);
282 GET_PROC(InvalidateFramebuffer);
283 GET_PROC(InvalidateSubFramebuffer);
284 GET_PROC(InvalidateTexImage);
285 GET_PROC(InvalidateTexSubImage);
286 }
287
288 interface->fStandard = kGL_GrGLStandard;
289 interface->fExtensions.swap(&extensions);
290
291 return interface;
292 }
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