bsalomon | 7ea33f5 | 2015-11-22 14:51:00 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2015 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "Test.h" |
| 9 | #if SK_SUPPORT_GPU |
| 10 | #include "GrContext.h" |
| 11 | #include "GrContextFactory.h" |
| 12 | #include "gl/GrGLGpu.h" |
| 13 | #include "gl/GrGLUtil.h" |
| 14 | #include "gl/SkGLContext.h" |
| 15 | |
| 16 | static void cleanup(SkGLContext* glctx0, GrGLuint texID0, SkGLContext* glctx1, GrContext* grctx1, |
| 17 | const GrGLTextureInfo* grbackendtex1, GrEGLImage image1) { |
| 18 | if (glctx1) { |
| 19 | glctx1->makeCurrent(); |
| 20 | if (grctx1) { |
| 21 | if (grbackendtex1) { |
| 22 | GrGLGpu* gpu1 = static_cast<GrGLGpu*>(grctx1->getGpu()); |
| 23 | GrBackendObject handle = reinterpret_cast<GrBackendObject>(grbackendtex1); |
| 24 | gpu1->deleteTestingOnlyBackendTexture(handle, false); |
| 25 | } |
| 26 | grctx1->unref(); |
| 27 | } |
| 28 | if (GR_EGL_NO_IMAGE != image1) { |
| 29 | glctx1->destroyEGLImage(image1); |
| 30 | } |
| 31 | glctx1->unref(); |
| 32 | } |
| 33 | |
| 34 | glctx0->makeCurrent(); |
| 35 | if (texID0) { |
| 36 | GR_GL_CALL(glctx0->gl(), DeleteTextures(1, &texID0)); |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | DEF_GPUTEST(EGLImageTest, reporter, factory) { |
| 41 | for (int glCtxType = 0; glCtxType < GrContextFactory::kGLContextTypeCnt; ++glCtxType) { |
| 42 | GrContextFactory::GLContextType type = (GrContextFactory::GLContextType)glCtxType; |
| 43 | if (!GrContextFactory::IsRenderingGLContext(type)) { |
| 44 | continue; |
| 45 | } |
| 46 | |
| 47 | // Try to create a second GL context and then check if the contexts have necessary |
| 48 | // extensions to run this test. |
| 49 | |
| 50 | GrContext* context0 = factory->get(type); |
| 51 | if (!context0) { |
| 52 | continue; |
| 53 | } |
| 54 | SkGLContext* glCtx0 = factory->getGLContext(type); |
| 55 | SkASSERT(glCtx0); |
| 56 | if (kGLES_GrGLStandard != glCtx0->gl()->fStandard) { |
| 57 | continue; |
| 58 | } |
| 59 | GrGLGpu* gpu0 = static_cast<GrGLGpu*>(context0->getGpu()); |
| 60 | if (!gpu0->glCaps().externalTextureSupport()) { |
| 61 | continue; |
| 62 | } |
| 63 | |
| 64 | SkGLContext* glCtx1 = glCtx0->createNew(); |
| 65 | if (!glCtx1) { |
| 66 | continue; |
| 67 | } |
| 68 | GrContext* context1 = GrContext::Create(kOpenGL_GrBackend, (GrBackendContext)glCtx1->gl()); |
| 69 | const GrGLTextureInfo* backendTexture1 = nullptr; |
| 70 | GrEGLImage image = GR_EGL_NO_IMAGE; |
| 71 | GrGLTextureInfo externalTexture; |
| 72 | externalTexture.fID = 0; |
| 73 | |
| 74 | if (!context1) { |
| 75 | cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image); |
| 76 | continue; |
| 77 | } |
| 78 | |
| 79 | if (!glCtx1->gl()->hasExtension("EGL_KHR_image") || |
| 80 | !glCtx1->gl()->hasExtension("EGL_KHR_gl_texture_2D_image")) { |
| 81 | cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image); |
| 82 | continue; |
| 83 | } |
| 84 | |
| 85 | ///////////////////////////////// CONTEXT 1 /////////////////////////////////// |
| 86 | |
| 87 | // Use GL Context 1 to create a texture unknown to GrContext. |
| 88 | context1->flush(); |
| 89 | GrGpu* gpu1 = context1->getGpu(); |
| 90 | static const int kSize = 100; |
| 91 | backendTexture1 = reinterpret_cast<const GrGLTextureInfo*>( |
| 92 | gpu1->createTestingOnlyBackendTexture(nullptr, kSize, kSize, kRGBA_8888_GrPixelConfig)); |
| 93 | if (!backendTexture1 || !backendTexture1->fID) { |
| 94 | ERRORF(reporter, "Error creating texture for EGL Image"); |
| 95 | cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image); |
| 96 | continue; |
| 97 | } |
| 98 | if (GR_GL_TEXTURE_2D != backendTexture1->fTarget) { |
| 99 | ERRORF(reporter, "Expected backend texture to be 2D"); |
| 100 | cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image); |
| 101 | continue; |
| 102 | } |
| 103 | |
| 104 | // Wrap the texture in an EGLImage |
| 105 | image = glCtx1->texture2DToEGLImage(backendTexture1->fID); |
| 106 | if (GR_EGL_NO_IMAGE == image) { |
| 107 | ERRORF(reporter, "Error creating EGL Image from texture"); |
| 108 | cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image); |
| 109 | continue; |
| 110 | } |
| 111 | |
| 112 | // Populate the texture using GL context 1. Important to use TexSubImage as TexImage orphans |
| 113 | // the EGL image. Also, this must be done after creating the EGLImage as the texture |
| 114 | // contents may not be preserved when the image is created. |
| 115 | SkAutoTMalloc<uint32_t> pixels(kSize * kSize); |
| 116 | for (int i = 0; i < kSize*kSize; ++i) { |
| 117 | pixels.get()[i] = 0xDDAABBCC; |
| 118 | } |
| 119 | GR_GL_CALL(glCtx1->gl(), ActiveTexture(GR_GL_TEXTURE0)); |
| 120 | GR_GL_CALL(glCtx1->gl(), BindTexture(backendTexture1->fTarget, backendTexture1->fID)); |
| 121 | GR_GL_CALL(glCtx1->gl(), TexSubImage2D(backendTexture1->fTarget, 0, 0, 0, kSize, kSize, |
| 122 | GR_GL_RGBA, GR_GL_UNSIGNED_BYTE, pixels.get())); |
| 123 | GR_GL_CALL(glCtx1->gl(), Finish()); |
| 124 | // We've been making direct GL calls in GL context 1, let GrContext 1 know its internal |
| 125 | // state is invalid. |
| 126 | context1->resetContext(); |
| 127 | |
| 128 | ///////////////////////////////// CONTEXT 0 /////////////////////////////////// |
| 129 | |
| 130 | // Make a new texture ID in GL Context 0 from the EGL Image |
| 131 | glCtx0->makeCurrent(); |
| 132 | externalTexture.fTarget = GR_GL_TEXTURE_EXTERNAL; |
| 133 | externalTexture.fID = glCtx0->eglImageToExternalTexture(image); |
| 134 | |
| 135 | // Wrap this texture ID in a GrTexture |
| 136 | GrBackendTextureDesc externalDesc; |
| 137 | externalDesc.fConfig = kRGBA_8888_GrPixelConfig; |
| 138 | externalDesc.fWidth = kSize; |
| 139 | externalDesc.fHeight = kSize; |
| 140 | externalDesc.fTextureHandle = reinterpret_cast<GrBackendObject>(&externalTexture); |
| 141 | SkAutoTUnref<GrTexture> externalTextureObj( |
| 142 | context0->textureProvider()->wrapBackendTexture(externalDesc)); |
| 143 | if (!externalTextureObj) { |
| 144 | ERRORF(reporter, "Error wrapping external texture in GrTexture."); |
| 145 | cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image); |
| 146 | continue; |
| 147 | } |
| 148 | |
| 149 | // Read the pixels and see if we get the values set in GL context 1 |
| 150 | memset(pixels.get(), 0, sizeof(uint32_t)*kSize*kSize); |
| 151 | bool read = externalTextureObj->readPixels(0, 0, kSize, kSize, kRGBA_8888_GrPixelConfig, |
| 152 | pixels.get()); |
| 153 | if (!read) { |
| 154 | ERRORF(reporter, "Error reading external texture."); |
| 155 | cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image); |
| 156 | continue; |
| 157 | } |
| 158 | for (int i = 0; i < kSize*kSize; ++i) { |
| 159 | if (pixels.get()[i] != 0xDDAABBCC) { |
| 160 | ERRORF(reporter, "Error, external texture pixel value %d should be 0xDDAABBCC," |
| 161 | " got 0x%08x.", pixels.get()[i]); |
| 162 | break; |
| 163 | } |
| 164 | } |
| 165 | cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image); |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | #endif |