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| 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 #include "GLContext_angle.h" | |
| 10 | |
| 11 #include <EGL/egl.h> | |
| 12 #include <EGL/eglext.h> | |
| 13 | |
| 14 #include "gl/GrGLDefines.h" | |
| 15 #include "gl/GrGLUtil.h" | |
| 16 | |
| 17 #include "gl/GrGLInterface.h" | |
| 18 #include "gl/GrGLAssembleInterface.h" | |
| 19 #include "../ports/SkOSLibrary.h" | |
| 20 | |
| 21 #include <EGL/egl.h> | |
| 22 | |
| 23 #define EGL_PLATFORM_ANGLE_ANGLE 0x3202 | |
| 24 #define EGL_PLATFORM_ANGLE_TYPE_ANGLE 0x3203 | |
| 25 #define EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE 0x3207 | |
| 26 #define EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE 0x3208 | |
| 27 #define EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE 0x320D | |
| 28 | |
| 29 namespace { | |
| 30 struct Libs { | |
| 31 void* fGLLib; | |
| 32 void* fEGLLib; | |
| 33 }; | |
| 34 | |
| 35 static GrGLFuncPtr angle_get_gl_proc(void* ctx, const char name[]) { | |
| 36 const Libs* libs = reinterpret_cast<const Libs*>(ctx); | |
| 37 GrGLFuncPtr proc = (GrGLFuncPtr) GetProcedureAddress(libs->fGLLib, name); | |
| 38 if (proc) { | |
| 39 return proc; | |
| 40 } | |
| 41 proc = (GrGLFuncPtr) GetProcedureAddress(libs->fEGLLib, name); | |
| 42 if (proc) { | |
| 43 return proc; | |
| 44 } | |
| 45 return eglGetProcAddress(name); | |
| 46 } | |
| 47 | |
| 48 void* get_angle_egl_display(void* nativeDisplay, bool useGLBackend) { | |
| 49 PFNEGLGETPLATFORMDISPLAYEXTPROC eglGetPlatformDisplayEXT; | |
| 50 eglGetPlatformDisplayEXT = | |
| 51 (PFNEGLGETPLATFORMDISPLAYEXTPROC)eglGetProcAddress("eglGetPlatformDispla
yEXT"); | |
| 52 | |
| 53 // We expect ANGLE to support this extension | |
| 54 if (!eglGetPlatformDisplayEXT) { | |
| 55 return EGL_NO_DISPLAY; | |
| 56 } | |
| 57 | |
| 58 EGLDisplay display = EGL_NO_DISPLAY; | |
| 59 if (useGLBackend) { | |
| 60 EGLint attribs[3] = { | |
| 61 EGL_PLATFORM_ANGLE_TYPE_ANGLE, | |
| 62 EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE, | |
| 63 EGL_NONE | |
| 64 }; | |
| 65 display = eglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE, nativeDispl
ay, attribs); | |
| 66 } else { | |
| 67 // Try for an ANGLE D3D11 context, fall back to D3D9. | |
| 68 EGLint attribs[3][3] = { | |
| 69 { | |
| 70 EGL_PLATFORM_ANGLE_TYPE_ANGLE, | |
| 71 EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE, | |
| 72 EGL_NONE | |
| 73 }, | |
| 74 { | |
| 75 EGL_PLATFORM_ANGLE_TYPE_ANGLE, | |
| 76 EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE, | |
| 77 EGL_NONE | |
| 78 }, | |
| 79 }; | |
| 80 for (int i = 0; i < 3 && display == EGL_NO_DISPLAY; ++i) { | |
| 81 display = eglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE,nativeDi
splay, attribs[i]); | |
| 82 } | |
| 83 } | |
| 84 return display; | |
| 85 } | |
| 86 | |
| 87 class ANGLEGLContext : public sk_gpu_test::GLContext { | |
| 88 public: | |
| 89 ANGLEGLContext(bool preferGLBackend); | |
| 90 ~ANGLEGLContext() override; | |
| 91 | |
| 92 GrEGLImage texture2DToEGLImage(GrGLuint texID) const override; | |
| 93 void destroyEGLImage(GrEGLImage) const override; | |
| 94 GrGLuint eglImageToExternalTexture(GrEGLImage) const override; | |
| 95 sk_gpu_test::GLContext* createNew() const override; | |
| 96 | |
| 97 private: | |
| 98 void destroyGLContext(); | |
| 99 | |
| 100 void onPlatformMakeCurrent() const override; | |
| 101 void onPlatformSwapBuffers() const override; | |
| 102 GrGLFuncPtr onPlatformGetProcAddress(const char* name) const override; | |
| 103 | |
| 104 void* fContext; | |
| 105 void* fDisplay; | |
| 106 void* fSurface; | |
| 107 bool fIsGLBackend; | |
| 108 }; | |
| 109 | |
| 110 ANGLEGLContext::ANGLEGLContext(bool useGLBackend) | |
| 111 : fContext(EGL_NO_CONTEXT) | |
| 112 , fDisplay(EGL_NO_DISPLAY) | |
| 113 , fSurface(EGL_NO_SURFACE) { | |
| 114 | |
| 115 EGLint numConfigs; | |
| 116 static const EGLint configAttribs[] = { | |
| 117 EGL_SURFACE_TYPE, EGL_PBUFFER_BIT, | |
| 118 EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, | |
| 119 EGL_RED_SIZE, 8, | |
| 120 EGL_GREEN_SIZE, 8, | |
| 121 EGL_BLUE_SIZE, 8, | |
| 122 EGL_ALPHA_SIZE, 8, | |
| 123 EGL_NONE | |
| 124 }; | |
| 125 | |
| 126 fIsGLBackend = useGLBackend; | |
| 127 fDisplay = get_angle_egl_display(EGL_DEFAULT_DISPLAY, useGLBackend); | |
| 128 if (EGL_NO_DISPLAY == fDisplay) { | |
| 129 SkDebugf("Could not create EGL display!"); | |
| 130 return; | |
| 131 } | |
| 132 | |
| 133 EGLint majorVersion; | |
| 134 EGLint minorVersion; | |
| 135 eglInitialize(fDisplay, &majorVersion, &minorVersion); | |
| 136 | |
| 137 EGLConfig surfaceConfig; | |
| 138 eglChooseConfig(fDisplay, configAttribs, &surfaceConfig, 1, &numConfigs); | |
| 139 | |
| 140 static const EGLint contextAttribs[] = { | |
| 141 EGL_CONTEXT_CLIENT_VERSION, 2, | |
| 142 EGL_NONE | |
| 143 }; | |
| 144 fContext = eglCreateContext(fDisplay, surfaceConfig, nullptr, contextAttribs
); | |
| 145 | |
| 146 | |
| 147 static const EGLint surfaceAttribs[] = { | |
| 148 EGL_WIDTH, 1, | |
| 149 EGL_HEIGHT, 1, | |
| 150 EGL_NONE | |
| 151 }; | |
| 152 | |
| 153 fSurface = eglCreatePbufferSurface(fDisplay, surfaceConfig, surfaceAttribs); | |
| 154 | |
| 155 eglMakeCurrent(fDisplay, fSurface, fSurface, fContext); | |
| 156 | |
| 157 SkAutoTUnref<const GrGLInterface> gl(sk_gpu_test::CreateANGLEGLInterface()); | |
| 158 if (nullptr == gl.get()) { | |
| 159 SkDebugf("Could not create ANGLE GL interface!\n"); | |
| 160 this->destroyGLContext(); | |
| 161 return; | |
| 162 } | |
| 163 if (!gl->validate()) { | |
| 164 SkDebugf("Could not validate ANGLE GL interface!\n"); | |
| 165 this->destroyGLContext(); | |
| 166 return; | |
| 167 } | |
| 168 | |
| 169 this->init(gl.release()); | |
| 170 } | |
| 171 | |
| 172 ANGLEGLContext::~ANGLEGLContext() { | |
| 173 this->teardown(); | |
| 174 this->destroyGLContext(); | |
| 175 } | |
| 176 | |
| 177 GrEGLImage ANGLEGLContext::texture2DToEGLImage(GrGLuint texID) const { | |
| 178 if (!this->gl()->hasExtension("EGL_KHR_gl_texture_2D_image")) { | |
| 179 return GR_EGL_NO_IMAGE; | |
| 180 } | |
| 181 GrEGLImage img; | |
| 182 GrEGLint attribs[] = { GR_EGL_GL_TEXTURE_LEVEL, 0, | |
| 183 GR_EGL_IMAGE_PRESERVED, GR_EGL_TRUE, | |
| 184 GR_EGL_NONE }; | |
| 185 // 64 bit cast is to shut Visual C++ up about casting 32 bit value to a poin
ter. | |
| 186 GrEGLClientBuffer clientBuffer = reinterpret_cast<GrEGLClientBuffer>((uint64
_t)texID); | |
| 187 GR_GL_CALL_RET(this->gl(), img, | |
| 188 EGLCreateImage(fDisplay, fContext, GR_EGL_GL_TEXTURE_2D, clie
ntBuffer, | |
| 189 attribs)); | |
| 190 return img; | |
| 191 } | |
| 192 | |
| 193 void ANGLEGLContext::destroyEGLImage(GrEGLImage image) const { | |
| 194 GR_GL_CALL(this->gl(), EGLDestroyImage(fDisplay, image)); | |
| 195 } | |
| 196 | |
| 197 GrGLuint ANGLEGLContext::eglImageToExternalTexture(GrEGLImage image) const { | |
| 198 GrGLClearErr(this->gl()); | |
| 199 if (!this->gl()->hasExtension("GL_OES_EGL_image_external")) { | |
| 200 return 0; | |
| 201 } | |
| 202 typedef GrGLvoid (*EGLImageTargetTexture2DProc)(GrGLenum, GrGLeglImage); | |
| 203 EGLImageTargetTexture2DProc glEGLImageTargetTexture2D = | |
| 204 (EGLImageTargetTexture2DProc)eglGetProcAddress("glEGLImageTargetTexture2
DOES"); | |
| 205 if (!glEGLImageTargetTexture2D) { | |
| 206 return 0; | |
| 207 } | |
| 208 GrGLuint texID; | |
| 209 GR_GL_CALL(this->gl(), GenTextures(1, &texID)); | |
| 210 if (!texID) { | |
| 211 return 0; | |
| 212 } | |
| 213 GR_GL_CALL(this->gl(), BindTexture(GR_GL_TEXTURE_EXTERNAL, texID)); | |
| 214 if (GR_GL_GET_ERROR(this->gl()) != GR_GL_NO_ERROR) { | |
| 215 GR_GL_CALL(this->gl(), DeleteTextures(1, &texID)); | |
| 216 return 0; | |
| 217 } | |
| 218 glEGLImageTargetTexture2D(GR_GL_TEXTURE_EXTERNAL, image); | |
| 219 if (GR_GL_GET_ERROR(this->gl()) != GR_GL_NO_ERROR) { | |
| 220 GR_GL_CALL(this->gl(), DeleteTextures(1, &texID)); | |
| 221 return 0; | |
| 222 } | |
| 223 return texID; | |
| 224 } | |
| 225 | |
| 226 sk_gpu_test::GLContext* ANGLEGLContext::createNew() const { | |
| 227 #ifdef SK_BUILD_FOR_WIN | |
| 228 sk_gpu_test::GLContext* ctx = fIsGLBackend ? sk_gpu_test::CreateANGLEOpenGLG
LContext() | |
| 229 : sk_gpu_test::CreateANGLEDirect3
DGLContext(); | |
| 230 #else | |
| 231 sk_gpu_test::GLContext* ctx = sk_gpu_test::CreateANGLEOpenGLGLContext(); | |
| 232 #endif | |
| 233 if (ctx) { | |
| 234 ctx->makeCurrent(); | |
| 235 } | |
| 236 return ctx; | |
| 237 } | |
| 238 | |
| 239 void ANGLEGLContext::destroyGLContext() { | |
| 240 if (fDisplay) { | |
| 241 eglMakeCurrent(fDisplay, 0, 0, 0); | |
| 242 | |
| 243 if (fContext) { | |
| 244 eglDestroyContext(fDisplay, fContext); | |
| 245 fContext = EGL_NO_CONTEXT; | |
| 246 } | |
| 247 | |
| 248 if (fSurface) { | |
| 249 eglDestroySurface(fDisplay, fSurface); | |
| 250 fSurface = EGL_NO_SURFACE; | |
| 251 } | |
| 252 | |
| 253 //TODO should we close the display? | |
| 254 fDisplay = EGL_NO_DISPLAY; | |
| 255 } | |
| 256 } | |
| 257 | |
| 258 void ANGLEGLContext::onPlatformMakeCurrent() const { | |
| 259 if (!eglMakeCurrent(fDisplay, fSurface, fSurface, fContext)) { | |
| 260 SkDebugf("Could not set the context.\n"); | |
| 261 } | |
| 262 } | |
| 263 | |
| 264 void ANGLEGLContext::onPlatformSwapBuffers() const { | |
| 265 if (!eglSwapBuffers(fDisplay, fSurface)) { | |
| 266 SkDebugf("Could not complete eglSwapBuffers.\n"); | |
| 267 } | |
| 268 } | |
| 269 | |
| 270 GrGLFuncPtr ANGLEGLContext::onPlatformGetProcAddress(const char* name) const { | |
| 271 return eglGetProcAddress(name); | |
| 272 } | |
| 273 } // anonymous namespace | |
| 274 | |
| 275 namespace sk_gpu_test { | |
| 276 const GrGLInterface* CreateANGLEGLInterface() { | |
| 277 static Libs gLibs = { nullptr, nullptr }; | |
| 278 | |
| 279 if (nullptr == gLibs.fGLLib) { | |
| 280 // We load the ANGLE library and never let it go | |
| 281 #if defined _WIN32 | |
| 282 gLibs.fGLLib = DynamicLoadLibrary("libGLESv2.dll"); | |
| 283 gLibs.fEGLLib = DynamicLoadLibrary("libEGL.dll"); | |
| 284 #elif defined SK_BUILD_FOR_MAC | |
| 285 gLibs.fGLLib = DynamicLoadLibrary("libGLESv2.dylib"); | |
| 286 gLibs.fEGLLib = DynamicLoadLibrary("libEGL.dylib"); | |
| 287 #else | |
| 288 gLibs.fGLLib = DynamicLoadLibrary("libGLESv2.so"); | |
| 289 gLibs.fEGLLib = DynamicLoadLibrary("libEGL.so"); | |
| 290 #endif | |
| 291 } | |
| 292 | |
| 293 if (nullptr == gLibs.fGLLib || nullptr == gLibs.fEGLLib) { | |
| 294 // We can't setup the interface correctly w/o the so | |
| 295 return nullptr; | |
| 296 } | |
| 297 | |
| 298 return GrGLAssembleGLESInterface(&gLibs, angle_get_gl_proc); | |
| 299 } | |
| 300 | |
| 301 #ifdef SK_BUILD_FOR_WIN | |
| 302 GLContext* CreateANGLEDirect3DGLContext() { | |
| 303 ANGLEGLContext* ctx = new ANGLEGLContext(false); | |
| 304 if (!ctx->isValid()) { | |
| 305 delete ctx; | |
| 306 return NULL; | |
| 307 } | |
| 308 return ctx; | |
| 309 } | |
| 310 #endif | |
| 311 | |
| 312 GLContext* CreateANGLEOpenGLGLContext() { | |
| 313 ANGLEGLContext* ctx = new ANGLEGLContext(true); | |
| 314 if (!ctx->isValid()) { | |
| 315 delete ctx; | |
| 316 return NULL; | |
| 317 } | |
| 318 return ctx; | |
| 319 } | |
| 320 } // namespace sk_gpu_test | |
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Chromium Code Reviews
Issue 1849463002:
rename sk_gpu_test::GLContext to sk_gpu_test::GLTestContext (Closed)
Base URL: https://chromium.googlesource.com/skia.git@move