| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "GLTestContext_angle.h" |
| |
| #include <EGL/egl.h> |
| #include <EGL/eglext.h> |
| |
| #include "gl/GrGLDefines.h" |
| #include "gl/GrGLUtil.h" |
| |
| #include "gl/GrGLInterface.h" |
| #include "gl/GrGLAssembleInterface.h" |
| #include "../ports/SkOSLibrary.h" |
| |
| #include <EGL/egl.h> |
| |
| #define EGL_PLATFORM_ANGLE_ANGLE 0x3202 |
| #define EGL_PLATFORM_ANGLE_TYPE_ANGLE 0x3203 |
| #define EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE 0x3207 |
| #define EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE 0x3208 |
| #define EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE 0x320D |
| |
| using sk_gpu_test::ANGLEBackend; |
| using sk_gpu_test::ANGLEContextVersion; |
| |
| namespace { |
| struct Libs { |
| void* fGLLib; |
| void* fEGLLib; |
| }; |
| |
| static GrGLFuncPtr angle_get_gl_proc(void* ctx, const char name[]) { |
| const Libs* libs = reinterpret_cast<const Libs*>(ctx); |
| GrGLFuncPtr proc = (GrGLFuncPtr) GetProcedureAddress(libs->fGLLib, name); |
| if (proc) { |
| return proc; |
| } |
| proc = (GrGLFuncPtr) GetProcedureAddress(libs->fEGLLib, name); |
| if (proc) { |
| return proc; |
| } |
| return eglGetProcAddress(name); |
| } |
| |
| void* get_angle_egl_display(void* nativeDisplay, ANGLEBackend type) { |
| PFNEGLGETPLATFORMDISPLAYEXTPROC eglGetPlatformDisplayEXT; |
| eglGetPlatformDisplayEXT = |
| (PFNEGLGETPLATFORMDISPLAYEXTPROC)eglGetProcAddress("eglGetPlatformDisplayEXT"); |
| |
| // We expect ANGLE to support this extension |
| if (!eglGetPlatformDisplayEXT) { |
| return EGL_NO_DISPLAY; |
| } |
| |
| EGLint typeNum = 0; |
| switch (type) { |
| case ANGLEBackend::kD3D9: |
| typeNum = EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE; |
| break; |
| case ANGLEBackend::kD3D11: |
| typeNum = EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE; |
| break; |
| case ANGLEBackend::kOpenGL: |
| typeNum = EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE; |
| break; |
| } |
| const EGLint attribs[] = { EGL_PLATFORM_ANGLE_TYPE_ANGLE, typeNum, EGL_NONE }; |
| return eglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE, nativeDisplay, attribs); |
| } |
| |
| class ANGLEGLContext : public sk_gpu_test::GLTestContext { |
| public: |
| ANGLEGLContext(ANGLEBackend, ANGLEContextVersion, ANGLEGLContext* shareContext, void* display); |
| ~ANGLEGLContext() override; |
| |
| GrEGLImage texture2DToEGLImage(GrGLuint texID) const override; |
| void destroyEGLImage(GrEGLImage) const override; |
| GrGLuint eglImageToExternalTexture(GrEGLImage) const override; |
| std::unique_ptr<sk_gpu_test::GLTestContext> makeNew() const override; |
| |
| private: |
| void destroyGLContext(); |
| |
| void onPlatformMakeCurrent() const override; |
| void onPlatformSwapBuffers() const override; |
| GrGLFuncPtr onPlatformGetProcAddress(const char* name) const override; |
| |
| void* fContext; |
| void* fDisplay; |
| void* fSurface; |
| ANGLEBackend fType; |
| ANGLEContextVersion fVersion; |
| |
| #ifdef SK_BUILD_FOR_WIN |
| HWND fWindow; |
| HDC fDeviceContext; |
| static ATOM gWC; |
| #endif |
| }; |
| |
| #ifdef SK_BUILD_FOR_WIN |
| ATOM ANGLEGLContext::gWC = 0; |
| #endif |
| |
| ANGLEGLContext::ANGLEGLContext(ANGLEBackend type, ANGLEContextVersion version, |
| ANGLEGLContext* shareContext, void* display) |
| : fContext(EGL_NO_CONTEXT) |
| , fDisplay(display) |
| , fSurface(EGL_NO_SURFACE) |
| , fType(type) |
| , fVersion(version) { |
| #ifdef SK_BUILD_FOR_WIN |
| fWindow = nullptr; |
| fDeviceContext = nullptr; |
| |
| if (EGL_NO_DISPLAY == fDisplay) { |
| HINSTANCE hInstance = (HINSTANCE)GetModuleHandle(nullptr); |
| |
| if (!gWC) { |
| WNDCLASS wc; |
| wc.cbClsExtra = 0; |
| wc.cbWndExtra = 0; |
| wc.hbrBackground = nullptr; |
| wc.hCursor = LoadCursor(nullptr, IDC_ARROW); |
| wc.hIcon = LoadIcon(nullptr, IDI_APPLICATION); |
| wc.hInstance = hInstance; |
| wc.lpfnWndProc = (WNDPROC) DefWindowProc; |
| wc.lpszClassName = TEXT("ANGLE-win"); |
| wc.lpszMenuName = nullptr; |
| wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; |
| |
| gWC = RegisterClass(&wc); |
| if (!gWC) { |
| SkDebugf("Could not register window class.\n"); |
| return; |
| } |
| } |
| if (!(fWindow = CreateWindow(TEXT("ANGLE-win"), |
| TEXT("The Invisible Man"), |
| WS_OVERLAPPEDWINDOW, |
| 0, 0, 1, 1, |
| nullptr, nullptr, |
| hInstance, nullptr))) { |
| SkDebugf("Could not create window.\n"); |
| return; |
| } |
| |
| if (!(fDeviceContext = GetDC(fWindow))) { |
| SkDebugf("Could not get device context.\n"); |
| this->destroyGLContext(); |
| return; |
| } |
| |
| fDisplay = get_angle_egl_display(fDeviceContext, type); |
| } |
| #else |
| SkASSERT(EGL_NO_DISPLAY == fDisplay); |
| fDisplay = get_angle_egl_display(EGL_DEFAULT_DISPLAY, type); |
| #endif |
| if (EGL_NO_DISPLAY == fDisplay) { |
| SkDebugf("Could not create EGL display!"); |
| return; |
| } |
| |
| EGLint majorVersion; |
| EGLint minorVersion; |
| if (!eglInitialize(fDisplay, &majorVersion, &minorVersion)) { |
| SkDebugf("Could not initialize display!"); |
| this->destroyGLContext(); |
| return; |
| } |
| |
| EGLint numConfigs; |
| static const EGLint configAttribs[] = { |
| EGL_SURFACE_TYPE, EGL_PBUFFER_BIT, |
| EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, |
| EGL_RED_SIZE, 8, |
| EGL_GREEN_SIZE, 8, |
| EGL_BLUE_SIZE, 8, |
| EGL_ALPHA_SIZE, 8, |
| EGL_NONE |
| }; |
| |
| EGLConfig surfaceConfig; |
| if (!eglChooseConfig(fDisplay, configAttribs, &surfaceConfig, 1, &numConfigs)) { |
| SkDebugf("Could not create choose config!"); |
| this->destroyGLContext(); |
| return; |
| } |
| |
| int versionNum = ANGLEContextVersion::kES2 == version ? 2 : 3; |
| const EGLint contextAttribs[] = { |
| EGL_CONTEXT_CLIENT_VERSION, versionNum, |
| EGL_NONE |
| }; |
| EGLContext eglShareContext = shareContext ? shareContext->fContext : nullptr; |
| fContext = eglCreateContext(fDisplay, surfaceConfig, eglShareContext, contextAttribs); |
| if (EGL_NO_CONTEXT == fContext) { |
| SkDebugf("Could not create context!"); |
| this->destroyGLContext(); |
| return; |
| } |
| |
| static const EGLint surfaceAttribs[] = { |
| EGL_WIDTH, 1, |
| EGL_HEIGHT, 1, |
| EGL_NONE |
| }; |
| |
| fSurface = eglCreatePbufferSurface(fDisplay, surfaceConfig, surfaceAttribs); |
| |
| if (!eglMakeCurrent(fDisplay, fSurface, fSurface, fContext)) { |
| SkDebugf("Could not set the context."); |
| this->destroyGLContext(); |
| return; |
| } |
| |
| sk_sp<const GrGLInterface> gl(sk_gpu_test::CreateANGLEGLInterface()); |
| if (nullptr == gl.get()) { |
| SkDebugf("Could not create ANGLE GL interface!\n"); |
| this->destroyGLContext(); |
| return; |
| } |
| if (!gl->validate()) { |
| SkDebugf("Could not validate ANGLE GL interface!\n"); |
| this->destroyGLContext(); |
| return; |
| } |
| |
| #ifdef SK_DEBUG |
| // Verify that the interface we requested was actually returned to us |
| const GrGLubyte* rendererUByte; |
| GR_GL_CALL_RET(gl.get(), rendererUByte, GetString(GR_GL_RENDERER)); |
| const char* renderer = reinterpret_cast<const char*>(rendererUByte); |
| switch (type) { |
| case ANGLEBackend::kD3D9: |
| SkASSERT(strstr(renderer, "Direct3D9")); |
| break; |
| case ANGLEBackend::kD3D11: |
| SkASSERT(strstr(renderer, "Direct3D11")); |
| break; |
| case ANGLEBackend::kOpenGL: |
| SkASSERT(strstr(renderer, "OpenGL")); |
| break; |
| } |
| #endif |
| |
| this->init(gl.release()); |
| } |
| |
| ANGLEGLContext::~ANGLEGLContext() { |
| this->teardown(); |
| this->destroyGLContext(); |
| } |
| |
| GrEGLImage ANGLEGLContext::texture2DToEGLImage(GrGLuint texID) const { |
| if (!this->gl()->hasExtension("EGL_KHR_gl_texture_2D_image")) { |
| return GR_EGL_NO_IMAGE; |
| } |
| GrEGLImage img; |
| GrEGLint attribs[] = { GR_EGL_GL_TEXTURE_LEVEL, 0, |
| GR_EGL_IMAGE_PRESERVED, GR_EGL_TRUE, |
| GR_EGL_NONE }; |
| // 64 bit cast is to shut Visual C++ up about casting 32 bit value to a pointer. |
| GrEGLClientBuffer clientBuffer = reinterpret_cast<GrEGLClientBuffer>((uint64_t)texID); |
| GR_GL_CALL_RET(this->gl(), img, |
| EGLCreateImage(fDisplay, fContext, GR_EGL_GL_TEXTURE_2D, clientBuffer, |
| attribs)); |
| return img; |
| } |
| |
| void ANGLEGLContext::destroyEGLImage(GrEGLImage image) const { |
| GR_GL_CALL(this->gl(), EGLDestroyImage(fDisplay, image)); |
| } |
| |
| GrGLuint ANGLEGLContext::eglImageToExternalTexture(GrEGLImage image) const { |
| GrGLClearErr(this->gl()); |
| if (!this->gl()->hasExtension("GL_OES_EGL_image_external")) { |
| return 0; |
| } |
| typedef GrGLvoid (EGLAPIENTRY *EGLImageTargetTexture2DProc)(GrGLenum, GrGLeglImage); |
| EGLImageTargetTexture2DProc glEGLImageTargetTexture2D = |
| (EGLImageTargetTexture2DProc)eglGetProcAddress("glEGLImageTargetTexture2DOES"); |
| if (!glEGLImageTargetTexture2D) { |
| return 0; |
| } |
| GrGLuint texID; |
| GR_GL_CALL(this->gl(), GenTextures(1, &texID)); |
| if (!texID) { |
| return 0; |
| } |
| GR_GL_CALL(this->gl(), BindTexture(GR_GL_TEXTURE_EXTERNAL, texID)); |
| if (GR_GL_GET_ERROR(this->gl()) != GR_GL_NO_ERROR) { |
| GR_GL_CALL(this->gl(), DeleteTextures(1, &texID)); |
| return 0; |
| } |
| glEGLImageTargetTexture2D(GR_GL_TEXTURE_EXTERNAL, image); |
| if (GR_GL_GET_ERROR(this->gl()) != GR_GL_NO_ERROR) { |
| GR_GL_CALL(this->gl(), DeleteTextures(1, &texID)); |
| return 0; |
| } |
| return texID; |
| } |
| |
| std::unique_ptr<sk_gpu_test::GLTestContext> ANGLEGLContext::makeNew() const { |
| // For EGLImage sharing between contexts to work in ANGLE the two contexts |
| // need to share the same display |
| std::unique_ptr<sk_gpu_test::GLTestContext> ctx = |
| sk_gpu_test::MakeANGLETestContext(fType, fVersion, nullptr, fDisplay); |
| if (ctx) { |
| ctx->makeCurrent(); |
| } |
| return ctx; |
| } |
| |
| void ANGLEGLContext::destroyGLContext() { |
| if (EGL_NO_DISPLAY != fDisplay) { |
| eglMakeCurrent(fDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT); |
| |
| if (EGL_NO_CONTEXT != fContext) { |
| eglDestroyContext(fDisplay, fContext); |
| fContext = EGL_NO_CONTEXT; |
| } |
| |
| if (EGL_NO_SURFACE != fSurface) { |
| eglDestroySurface(fDisplay, fSurface); |
| fSurface = EGL_NO_SURFACE; |
| } |
| |
| eglTerminate(fDisplay); |
| fDisplay = EGL_NO_DISPLAY; |
| } |
| |
| #ifdef SK_BUILD_FOR_WIN |
| if (fWindow) { |
| if (fDeviceContext) { |
| ReleaseDC(fWindow, fDeviceContext); |
| fDeviceContext = 0; |
| } |
| |
| DestroyWindow(fWindow); |
| fWindow = 0; |
| } |
| #endif |
| } |
| |
| void ANGLEGLContext::onPlatformMakeCurrent() const { |
| if (!eglMakeCurrent(fDisplay, fSurface, fSurface, fContext)) { |
| SkDebugf("Could not set the context 0x%x.\n", eglGetError()); |
| } |
| } |
| |
| void ANGLEGLContext::onPlatformSwapBuffers() const { |
| if (!eglSwapBuffers(fDisplay, fSurface)) { |
| SkDebugf("Could not complete eglSwapBuffers.\n"); |
| } |
| } |
| |
| GrGLFuncPtr ANGLEGLContext::onPlatformGetProcAddress(const char* name) const { |
| return eglGetProcAddress(name); |
| } |
| } // anonymous namespace |
| |
| namespace sk_gpu_test { |
| const GrGLInterface* CreateANGLEGLInterface() { |
| static Libs gLibs = { nullptr, nullptr }; |
| |
| if (nullptr == gLibs.fGLLib) { |
| // We load the ANGLE library and never let it go |
| #if defined _WIN32 |
| gLibs.fGLLib = DynamicLoadLibrary("libGLESv2.dll"); |
| gLibs.fEGLLib = DynamicLoadLibrary("libEGL.dll"); |
| #elif defined SK_BUILD_FOR_MAC |
| gLibs.fGLLib = DynamicLoadLibrary("libGLESv2.dylib"); |
| gLibs.fEGLLib = DynamicLoadLibrary("libEGL.dylib"); |
| #else |
| gLibs.fGLLib = DynamicLoadLibrary("libGLESv2.so"); |
| gLibs.fEGLLib = DynamicLoadLibrary("libEGL.so"); |
| #endif |
| } |
| |
| if (nullptr == gLibs.fGLLib || nullptr == gLibs.fEGLLib) { |
| // We can't setup the interface correctly w/o the so |
| return nullptr; |
| } |
| |
| return GrGLAssembleGLESInterface(&gLibs, angle_get_gl_proc); |
| } |
| |
| std::unique_ptr<GLTestContext> MakeANGLETestContext(ANGLEBackend type, ANGLEContextVersion version, |
| GLTestContext* shareContext, void* display){ |
| ANGLEGLContext* angleShareContext = reinterpret_cast<ANGLEGLContext*>(shareContext); |
| std::unique_ptr<GLTestContext> ctx(new ANGLEGLContext(type, version, |
| angleShareContext, display)); |
| if (!ctx->isValid()) { |
| return nullptr; |
| } |
| return ctx; |
| } |
| } // namespace sk_gpu_test |