| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "Test.h" |
| #if SK_SUPPORT_GPU |
| #include "GrContext.h" |
| #include "GrContextFactory.h" |
| #include "gl/GrGLGpu.h" |
| #include "gl/GrGLUtil.h" |
| #include "gl/SkGLContext.h" |
| |
| static void cleanup(SkGLContext* glctx0, GrGLuint texID0, SkGLContext* glctx1, GrContext* grctx1, |
| const GrGLTextureInfo* grbackendtex1, GrEGLImage image1) { |
| if (glctx1) { |
| glctx1->makeCurrent(); |
| if (grctx1) { |
| if (grbackendtex1) { |
| GrGLGpu* gpu1 = static_cast<GrGLGpu*>(grctx1->getGpu()); |
| GrBackendObject handle = reinterpret_cast<GrBackendObject>(grbackendtex1); |
| gpu1->deleteTestingOnlyBackendTexture(handle, false); |
| } |
| grctx1->unref(); |
| } |
| if (GR_EGL_NO_IMAGE != image1) { |
| glctx1->destroyEGLImage(image1); |
| } |
| glctx1->unref(); |
| } |
| |
| glctx0->makeCurrent(); |
| if (texID0) { |
| GR_GL_CALL(glctx0->gl(), DeleteTextures(1, &texID0)); |
| } |
| } |
| |
| static void test_read_pixels(skiatest::Reporter* reporter, GrContext* context, |
| GrTexture* externalTexture, uint32_t expectedPixelValues[]) { |
| int pixelCnt = externalTexture->width() * externalTexture->height(); |
| SkAutoTMalloc<uint32_t> pixels(pixelCnt); |
| memset(pixels.get(), 0, sizeof(uint32_t)*pixelCnt); |
| bool read = externalTexture->readPixels(0, 0, externalTexture->width(), |
| externalTexture->height(), kRGBA_8888_GrPixelConfig, |
| pixels.get()); |
| if (!read) { |
| ERRORF(reporter, "Error reading external texture."); |
| } |
| for (int i = 0; i < pixelCnt; ++i) { |
| if (pixels.get()[i] != expectedPixelValues[i]) { |
| ERRORF(reporter, "Error, external texture pixel value %d should be 0x%08x," |
| " got 0x%08x.", i, expectedPixelValues[i], pixels.get()[i]); |
| break; |
| } |
| } |
| } |
| |
| static void test_write_pixels(skiatest::Reporter* reporter, GrContext* context, |
| GrTexture* externalTexture) { |
| int pixelCnt = externalTexture->width() * externalTexture->height(); |
| SkAutoTMalloc<uint32_t> pixels(pixelCnt); |
| memset(pixels.get(), 0, sizeof(uint32_t)*pixelCnt); |
| bool write = externalTexture->writePixels(0, 0, 0, 0, kRGBA_8888_GrPixelConfig, pixels.get()); |
| REPORTER_ASSERT_MESSAGE(reporter, !write, "Should not be able to write to a EXTERNAL" |
| " texture."); |
| } |
| |
| static void test_copy_surface(skiatest::Reporter* reporter, GrContext* context, |
| GrTexture* externalTexture, uint32_t expectedPixelValues[]) { |
| GrSurfaceDesc copyDesc; |
| copyDesc.fConfig = kRGBA_8888_GrPixelConfig; |
| copyDesc.fWidth = externalTexture->width(); |
| copyDesc.fHeight = externalTexture->height(); |
| copyDesc.fFlags = kRenderTarget_GrSurfaceFlag; |
| SkAutoTUnref<GrTexture> copy(context->textureProvider()->createTexture(copyDesc, true)); |
| context->copySurface(copy, externalTexture); |
| test_read_pixels(reporter, context, copy, expectedPixelValues); |
| } |
| |
| DEF_GPUTEST_FOR_RENDERING_CONTEXTS(EGLImageTest, reporter, context0, glCtx0) { |
| // Try to create a second GL context and then check if the contexts have necessary |
| // extensions to run this test. |
| |
| if (kGLES_GrGLStandard != glCtx0->gl()->fStandard) { |
| return; |
| } |
| GrGLGpu* gpu0 = static_cast<GrGLGpu*>(context0->getGpu()); |
| if (!gpu0->glCaps().externalTextureSupport()) { |
| return; |
| } |
| |
| SkGLContext* glCtx1 = glCtx0->createNew(); |
| if (!glCtx1) { |
| return; |
| } |
| GrContext* context1 = GrContext::Create(kOpenGL_GrBackend, (GrBackendContext)glCtx1->gl()); |
| const GrGLTextureInfo* backendTexture1 = nullptr; |
| GrEGLImage image = GR_EGL_NO_IMAGE; |
| GrGLTextureInfo externalTexture; |
| externalTexture.fID = 0; |
| |
| if (!context1) { |
| cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image); |
| return; |
| } |
| |
| if (!glCtx1->gl()->hasExtension("EGL_KHR_image") || |
| !glCtx1->gl()->hasExtension("EGL_KHR_gl_texture_2D_image")) { |
| cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image); |
| return; |
| } |
| |
| ///////////////////////////////// CONTEXT 1 /////////////////////////////////// |
| |
| // Use GL Context 1 to create a texture unknown to GrContext. |
| context1->flush(); |
| GrGpu* gpu1 = context1->getGpu(); |
| static const int kSize = 100; |
| backendTexture1 = reinterpret_cast<const GrGLTextureInfo*>( |
| gpu1->createTestingOnlyBackendTexture(nullptr, kSize, kSize, kRGBA_8888_GrPixelConfig)); |
| if (!backendTexture1 || !backendTexture1->fID) { |
| ERRORF(reporter, "Error creating texture for EGL Image"); |
| cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image); |
| return; |
| } |
| if (GR_GL_TEXTURE_2D != backendTexture1->fTarget) { |
| ERRORF(reporter, "Expected backend texture to be 2D"); |
| cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image); |
| return; |
| } |
| |
| // Wrap the texture in an EGLImage |
| image = glCtx1->texture2DToEGLImage(backendTexture1->fID); |
| if (GR_EGL_NO_IMAGE == image) { |
| ERRORF(reporter, "Error creating EGL Image from texture"); |
| cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image); |
| return; |
| } |
| |
| // Populate the texture using GL context 1. Important to use TexSubImage as TexImage orphans |
| // the EGL image. Also, this must be done after creating the EGLImage as the texture |
| // contents may not be preserved when the image is created. |
| SkAutoTMalloc<uint32_t> pixels(kSize * kSize); |
| for (int i = 0; i < kSize*kSize; ++i) { |
| pixels.get()[i] = 0xDDAABBCC; |
| } |
| GR_GL_CALL(glCtx1->gl(), ActiveTexture(GR_GL_TEXTURE0)); |
| GR_GL_CALL(glCtx1->gl(), BindTexture(backendTexture1->fTarget, backendTexture1->fID)); |
| GR_GL_CALL(glCtx1->gl(), TexSubImage2D(backendTexture1->fTarget, 0, 0, 0, kSize, kSize, |
| GR_GL_RGBA, GR_GL_UNSIGNED_BYTE, pixels.get())); |
| GR_GL_CALL(glCtx1->gl(), Finish()); |
| // We've been making direct GL calls in GL context 1, let GrContext 1 know its internal |
| // state is invalid. |
| context1->resetContext(); |
| |
| ///////////////////////////////// CONTEXT 0 /////////////////////////////////// |
| |
| // Make a new texture ID in GL Context 0 from the EGL Image |
| glCtx0->makeCurrent(); |
| externalTexture.fTarget = GR_GL_TEXTURE_EXTERNAL; |
| externalTexture.fID = glCtx0->eglImageToExternalTexture(image); |
| |
| // Wrap this texture ID in a GrTexture |
| GrBackendTextureDesc externalDesc; |
| externalDesc.fConfig = kRGBA_8888_GrPixelConfig; |
| externalDesc.fWidth = kSize; |
| externalDesc.fHeight = kSize; |
| externalDesc.fTextureHandle = reinterpret_cast<GrBackendObject>(&externalTexture); |
| SkAutoTUnref<GrTexture> externalTextureObj( |
| context0->textureProvider()->wrapBackendTexture(externalDesc)); |
| if (!externalTextureObj) { |
| ERRORF(reporter, "Error wrapping external texture in GrTexture."); |
| cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image); |
| return; |
| } |
| |
| // Should not be able to wrap as a RT |
| externalDesc.fFlags = kRenderTarget_GrBackendTextureFlag; |
| SkAutoTUnref<GrTexture> externalTextureRTObj( |
| context0->textureProvider()->wrapBackendTexture(externalDesc)); |
| if (externalTextureRTObj) { |
| ERRORF(reporter, "Should not be able to wrap an EXTERNAL texture as a RT."); |
| } |
| externalDesc.fFlags = kNone_GrBackendTextureFlag; |
| |
| // Should not be able to wrap with a sample count |
| externalDesc.fSampleCnt = 4; |
| SkAutoTUnref<GrTexture> externalTextureMSAAObj( |
| context0->textureProvider()->wrapBackendTexture(externalDesc)); |
| if (externalTextureMSAAObj) { |
| ERRORF(reporter, "Should not be able to wrap an EXTERNAL texture with MSAA."); |
| } |
| externalDesc.fSampleCnt = 0; |
| |
| test_read_pixels(reporter, context0, externalTextureObj, pixels.get()); |
| |
| test_write_pixels(reporter, context0, externalTextureObj); |
| |
| test_copy_surface(reporter, context0, externalTextureObj, pixels.get()); |
| |
| cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image); |
| } |
| |
| #endif |
