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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2011 Google Inc. | 3 * Copyright 2011 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 #include "gl/SkGLContext.h" | 8 #include "gl/SkGLContext.h" |
9 | 9 |
10 #include <GLES2/gl2.h> | 10 #include <GLES2/gl2.h> |
11 | 11 |
12 #define EGL_EGLEXT_PROTOTYPES | 12 #define EGL_EGLEXT_PROTOTYPES |
13 #include <EGL/egl.h> | 13 #include <EGL/egl.h> |
14 #include <EGL/eglext.h> | 14 #include <EGL/eglext.h> |
15 | 15 |
16 #include "gl/GrGLDefines.h" | |
17 #include "gl/GrGLUtil.h" | |
18 | |
19 namespace { | 16 namespace { |
20 | 17 |
21 // TODO: Share this class with ANGLE if/when it gets support for EGL_KHR_fence_s
ync. | 18 // TODO: Share this class with ANGLE if/when it gets support for EGL_KHR_fence_s
ync. |
22 class SkEGLFenceSync : public SkGpuFenceSync { | 19 class SkEGLFenceSync : public SkGpuFenceSync { |
23 public: | 20 public: |
24 static SkEGLFenceSync* CreateIfSupported(EGLDisplay); | 21 static SkEGLFenceSync* CreateIfSupported(EGLDisplay); |
25 | 22 |
26 SkPlatformGpuFence SK_WARN_UNUSED_RESULT insertFence() const override; | 23 SkPlatformGpuFence SK_WARN_UNUSED_RESULT insertFence() const override; |
27 bool flushAndWaitFence(SkPlatformGpuFence fence) const override; | 24 bool flushAndWaitFence(SkPlatformGpuFence fence) const override; |
28 void deleteFence(SkPlatformGpuFence fence) const override; | 25 void deleteFence(SkPlatformGpuFence fence) const override; |
29 | 26 |
30 private: | 27 private: |
31 SkEGLFenceSync(EGLDisplay display) : fDisplay(display) {} | 28 SkEGLFenceSync(EGLDisplay display) : fDisplay(display) {} |
32 | 29 |
33 EGLDisplay fDisplay; | 30 EGLDisplay fDisplay; |
34 | 31 |
35 typedef SkGpuFenceSync INHERITED; | 32 typedef SkGpuFenceSync INHERITED; |
36 }; | 33 }; |
37 | 34 |
38 class EGLGLContext : public SkGLContext { | 35 class EGLGLContext : public SkGLContext { |
39 public: | 36 public: |
40 EGLGLContext(GrGLStandard forcedGpuAPI); | 37 EGLGLContext(GrGLStandard forcedGpuAPI); |
41 ~EGLGLContext() override; | 38 ~EGLGLContext() override; |
42 | 39 |
43 GrEGLImage texture2DToEGLImage(GrGLuint texID) const override; | |
44 void destroyEGLImage(GrEGLImage) const override; | |
45 GrGLuint eglImageToExternalTexture(GrEGLImage) const override; | |
46 SkGLContext* createNew() const override; | |
47 | |
48 private: | 40 private: |
49 void destroyGLContext(); | 41 void destroyGLContext(); |
50 | 42 |
51 void onPlatformMakeCurrent() const override; | 43 void onPlatformMakeCurrent() const override; |
52 void onPlatformSwapBuffers() const override; | 44 void onPlatformSwapBuffers() const override; |
53 GrGLFuncPtr onPlatformGetProcAddress(const char*) const override; | 45 GrGLFuncPtr onPlatformGetProcAddress(const char*) const override; |
54 | 46 |
55 EGLContext fContext; | 47 EGLContext fContext; |
56 EGLDisplay fDisplay; | 48 EGLDisplay fDisplay; |
57 EGLSurface fSurface; | 49 EGLSurface fSurface; |
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201 if (fSurface) { | 193 if (fSurface) { |
202 eglDestroySurface(fDisplay, fSurface); | 194 eglDestroySurface(fDisplay, fSurface); |
203 fSurface = EGL_NO_SURFACE; | 195 fSurface = EGL_NO_SURFACE; |
204 } | 196 } |
205 | 197 |
206 //TODO should we close the display? | 198 //TODO should we close the display? |
207 fDisplay = EGL_NO_DISPLAY; | 199 fDisplay = EGL_NO_DISPLAY; |
208 } | 200 } |
209 } | 201 } |
210 | 202 |
211 GrEGLImage EGLGLContext::texture2DToEGLImage(GrGLuint texID) const { | |
212 if (!this->gl()->hasExtension("EGL_KHR_gl_texture_2D_image")) { | |
213 return GR_EGL_NO_IMAGE; | |
214 } | |
215 GrEGLImage img; | |
216 GrEGLint attribs[] = { GR_EGL_GL_TEXTURE_LEVEL, 0, GR_EGL_NONE }; | |
217 GrEGLClientBuffer clientBuffer = reinterpret_cast<GrEGLClientBuffer>(texID); | |
218 GR_GL_CALL_RET(this->gl(), img, | |
219 EGLCreateImage(fDisplay, fContext, GR_EGL_GL_TEXTURE_2D, clie
ntBuffer, attribs)); | |
220 return img; | |
221 } | |
222 | |
223 void EGLGLContext::destroyEGLImage(GrEGLImage image) const { | |
224 GR_GL_CALL(this->gl(), EGLDestroyImage(fDisplay, image)); | |
225 } | |
226 | |
227 GrGLuint EGLGLContext::eglImageToExternalTexture(GrEGLImage image) const { | |
228 GrGLClearErr(this->gl()); | |
229 if (!this->gl()->hasExtension("GL_OES_EGL_image_external")) { | |
230 return 0; | |
231 } | |
232 GrGLEGLImageTargetTexture2DProc glEGLImageTargetTexture2D = | |
233 (GrGLEGLImageTargetTexture2DProc) eglGetProcAddress("glEGLImageTarge
tTexture2DOES"); | |
234 if (!glEGLImageTargetTexture2D) { | |
235 return 0; | |
236 } | |
237 GrGLuint texID; | |
238 glGenTextures(1, &texID); | |
239 if (!texID) { | |
240 return 0; | |
241 } | |
242 glBindTexture(GR_GL_TEXTURE_EXTERNAL, texID); | |
243 if (glGetError() != GR_GL_NO_ERROR) { | |
244 glDeleteTextures(1, &texID); | |
245 return 0; | |
246 } | |
247 glEGLImageTargetTexture2D(GR_GL_TEXTURE_EXTERNAL, image); | |
248 if (glGetError() != GR_GL_NO_ERROR) { | |
249 glDeleteTextures(1, &texID); | |
250 return 0; | |
251 } | |
252 return texID; | |
253 } | |
254 | |
255 SkGLContext* EGLGLContext::createNew() const { | |
256 SkGLContext* ctx = SkCreatePlatformGLContext(this->gl()->fStandard); | |
257 if (ctx) { | |
258 ctx->makeCurrent(); | |
259 } | |
260 return ctx; | |
261 } | |
262 | 203 |
263 void EGLGLContext::onPlatformMakeCurrent() const { | 204 void EGLGLContext::onPlatformMakeCurrent() const { |
264 if (!eglMakeCurrent(fDisplay, fSurface, fSurface, fContext)) { | 205 if (!eglMakeCurrent(fDisplay, fSurface, fSurface, fContext)) { |
265 SkDebugf("Could not set the context.\n"); | 206 SkDebugf("Could not set the context.\n"); |
266 } | 207 } |
267 } | 208 } |
268 | 209 |
269 void EGLGLContext::onPlatformSwapBuffers() const { | 210 void EGLGLContext::onPlatformSwapBuffers() const { |
270 if (!eglSwapBuffers(fDisplay, fSurface)) { | 211 if (!eglSwapBuffers(fDisplay, fSurface)) { |
271 SkDebugf("Could not complete eglSwapBuffers.\n"); | 212 SkDebugf("Could not complete eglSwapBuffers.\n"); |
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319 | 260 |
320 SkGLContext* SkCreatePlatformGLContext(GrGLStandard forcedGpuAPI) { | 261 SkGLContext* SkCreatePlatformGLContext(GrGLStandard forcedGpuAPI) { |
321 EGLGLContext* ctx = new EGLGLContext(forcedGpuAPI); | 262 EGLGLContext* ctx = new EGLGLContext(forcedGpuAPI); |
322 if (!ctx->isValid()) { | 263 if (!ctx->isValid()) { |
323 delete ctx; | 264 delete ctx; |
324 return nullptr; | 265 return nullptr; |
325 } | 266 } |
326 return ctx; | 267 return ctx; |
327 } | 268 } |
328 | 269 |
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