|  | // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 
|  | // Use of this source code is governed by a BSD-style license that can be | 
|  | // found in the LICENSE file. | 
|  |  | 
|  | #ifndef GL_GLEXT_PROTOTYPES | 
|  | #define GL_GLEXT_PROTOTYPES | 
|  | #endif | 
|  |  | 
|  | #include <GLES2/gl2.h> | 
|  | #include <GLES2/gl2ext.h> | 
|  | #include <GLES2/gl2extchromium.h> | 
|  | #include <stddef.h> | 
|  | #include <stdint.h> | 
|  |  | 
|  | #include "gpu/command_buffer/tests/gl_manager.h" | 
|  | #include "gpu/command_buffer/tests/gl_test_utils.h" | 
|  | #include "testing/gmock/include/gmock/gmock.h" | 
|  | #include "testing/gtest/include/gtest/gtest.h" | 
|  |  | 
|  | namespace gpu { | 
|  |  | 
|  | namespace { | 
|  | enum CopyType { TexImage, TexSubImage }; | 
|  | const CopyType kCopyTypes[] = { | 
|  | TexImage, | 
|  | TexSubImage, | 
|  | }; | 
|  | } | 
|  |  | 
|  | // A collection of tests that exercise the GL_CHROMIUM_copy_texture extension. | 
|  | class GLCopyTextureCHROMIUMTest | 
|  | : public testing::Test, | 
|  | public ::testing::WithParamInterface<CopyType> { | 
|  | protected: | 
|  |  | 
|  | void CreateAndBindDestinationTextureAndFBO(GLenum target) { | 
|  | glGenTextures(2, textures_); | 
|  | glBindTexture(target, textures_[1]); | 
|  |  | 
|  | // Some drivers (NVidia/SGX) require texture settings to be a certain way or | 
|  | // they won't report FRAMEBUFFER_COMPLETE. | 
|  | glTexParameterf(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); | 
|  | glTexParameterf(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); | 
|  | glTexParameteri(target, GL_TEXTURE_MAG_FILTER, GL_NEAREST); | 
|  | glTexParameteri(target, GL_TEXTURE_MIN_FILTER, GL_NEAREST); | 
|  |  | 
|  | glGenFramebuffers(1, &framebuffer_id_); | 
|  | glBindFramebuffer(GL_FRAMEBUFFER, framebuffer_id_); | 
|  | glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, target, | 
|  | textures_[1], 0); | 
|  | } | 
|  |  | 
|  | void SetUp() override { | 
|  | gl_.Initialize(GLManager::Options()); | 
|  |  | 
|  | CreateAndBindDestinationTextureAndFBO(GL_TEXTURE_2D); | 
|  | } | 
|  |  | 
|  | void TearDown() override { | 
|  | glDeleteTextures(2, textures_); | 
|  | glDeleteFramebuffers(1, &framebuffer_id_); | 
|  | gl_.Destroy(); | 
|  | } | 
|  |  | 
|  | void CreateBackingForTexture(GLenum target, GLsizei width, GLsizei height) { | 
|  | if (target == GL_TEXTURE_RECTANGLE_ARB) { | 
|  | GLuint image_id = glCreateGpuMemoryBufferImageCHROMIUM( | 
|  | width, height, GL_RGBA, GL_READ_WRITE_CHROMIUM); | 
|  | glBindTexImage2DCHROMIUM(target, image_id); | 
|  | } else { | 
|  | glTexImage2D(target, 0, GL_RGBA, width, height, 0, GL_RGBA, | 
|  | GL_UNSIGNED_BYTE, nullptr); | 
|  | } | 
|  | } | 
|  |  | 
|  | GLenum ExtractFormatFrom(GLenum internalformat) { | 
|  | switch (internalformat) { | 
|  | case GL_RGBA8_OES: | 
|  | return GL_RGBA; | 
|  | case GL_RGB8_OES: | 
|  | return GL_RGB; | 
|  | case GL_BGRA8_EXT: | 
|  | return GL_BGRA_EXT; | 
|  | default: | 
|  | NOTREACHED(); | 
|  | return GL_NONE; | 
|  | } | 
|  | } | 
|  |  | 
|  | GLManager gl_; | 
|  | GLuint textures_[2]; | 
|  | GLuint framebuffer_id_; | 
|  | }; | 
|  |  | 
|  | INSTANTIATE_TEST_CASE_P(CopyType, | 
|  | GLCopyTextureCHROMIUMTest, | 
|  | ::testing::ValuesIn(kCopyTypes)); | 
|  |  | 
|  | // Test to ensure that the basic functionality of the extension works. | 
|  | TEST_P(GLCopyTextureCHROMIUMTest, Basic) { | 
|  | CopyType copy_type = GetParam(); | 
|  | uint8_t pixels[1 * 4] = {255u, 0u, 0u, 255u}; | 
|  |  | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[0]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | pixels); | 
|  |  | 
|  | if (copy_type == TexImage) { | 
|  | glCopyTextureCHROMIUM(textures_[0], textures_[1], GL_RGBA, | 
|  | GL_UNSIGNED_BYTE, false, false, false); | 
|  | } else { | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[1]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | nullptr); | 
|  |  | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], 0, 0, 0, | 
|  | 0, 1, 1, false, false, false); | 
|  | } | 
|  | EXPECT_TRUE(glGetError() == GL_NO_ERROR); | 
|  |  | 
|  | // Check the FB is still bound. | 
|  | GLint value = 0; | 
|  | glGetIntegerv(GL_FRAMEBUFFER_BINDING, &value); | 
|  | GLuint fb_id = value; | 
|  | EXPECT_EQ(framebuffer_id_, fb_id); | 
|  |  | 
|  | // Check that FB is complete. | 
|  | EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE), | 
|  | glCheckFramebufferStatus(GL_FRAMEBUFFER)); | 
|  |  | 
|  | GLTestHelper::CheckPixels(0, 0, 1, 1, 0, pixels); | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  | } | 
|  |  | 
|  | TEST_P(GLCopyTextureCHROMIUMTest, ImmutableTexture) { | 
|  | if (!GLTestHelper::HasExtension("GL_EXT_texture_storage")) { | 
|  | LOG(INFO) << "GL_EXT_texture_storage not supported. Skipping test..."; | 
|  | return; | 
|  | } | 
|  | CopyType copy_type = GetParam(); | 
|  | GLenum src_internal_formats[] = {GL_RGB8_OES, GL_RGBA8_OES, GL_BGRA8_EXT}; | 
|  | GLenum dest_internal_formats[] = {GL_RGB8_OES, GL_RGBA8_OES, GL_BGRA8_EXT}; | 
|  |  | 
|  | uint8_t pixels[1 * 4] = {255u, 0u, 255u, 255u}; | 
|  |  | 
|  | for (auto src_internal_format : src_internal_formats) { | 
|  | for (auto dest_internal_format : dest_internal_formats) { | 
|  | glDeleteTextures(2, textures_); | 
|  | glDeleteFramebuffers(1, &framebuffer_id_); | 
|  | CreateAndBindDestinationTextureAndFBO(GL_TEXTURE_2D); | 
|  |  | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[0]); | 
|  | glTexStorage2DEXT(GL_TEXTURE_2D, 1, src_internal_format, 1, 1); | 
|  | glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 1, 1, | 
|  | ExtractFormatFrom(src_internal_format), GL_UNSIGNED_BYTE, | 
|  | pixels); | 
|  |  | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[1]); | 
|  | glTexStorage2DEXT(GL_TEXTURE_2D, 1, dest_internal_format, 1, 1); | 
|  | glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, | 
|  | GL_TEXTURE_2D, textures_[1], 0); | 
|  | EXPECT_TRUE(glGetError() == GL_NO_ERROR); | 
|  |  | 
|  | if (copy_type == TexImage) { | 
|  | glCopyTextureCHROMIUM(textures_[0], textures_[1], | 
|  | ExtractFormatFrom(dest_internal_format), | 
|  | GL_UNSIGNED_BYTE, false, false, false); | 
|  | EXPECT_TRUE(glGetError() == GL_INVALID_OPERATION); | 
|  | } else { | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], 0, 0, 0, 0, 1, 1, | 
|  | false, false, false); | 
|  | EXPECT_TRUE(glGetError() == GL_NO_ERROR); | 
|  |  | 
|  | // Check the FB is still bound. | 
|  | GLint value = 0; | 
|  | glGetIntegerv(GL_FRAMEBUFFER_BINDING, &value); | 
|  | GLuint fb_id = value; | 
|  | EXPECT_EQ(framebuffer_id_, fb_id); | 
|  |  | 
|  | // Check that FB is complete. | 
|  | EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE), | 
|  | glCheckFramebufferStatus(GL_FRAMEBUFFER)); | 
|  |  | 
|  | GLTestHelper::CheckPixels(0, 0, 1, 1, 0, pixels); | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | TEST_P(GLCopyTextureCHROMIUMTest, InternalFormat) { | 
|  | CopyType copy_type = GetParam(); | 
|  | GLint src_formats[] = {GL_ALPHA,     GL_RGB,             GL_RGBA, | 
|  | GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_BGRA_EXT}; | 
|  | GLint dest_formats[] = {GL_RGB, GL_RGBA, GL_BGRA_EXT}; | 
|  |  | 
|  | for (size_t src_index = 0; src_index < arraysize(src_formats); src_index++) { | 
|  | for (size_t dest_index = 0; dest_index < arraysize(dest_formats); | 
|  | dest_index++) { | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[0]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, src_formats[src_index], 1, 1, 0, | 
|  | src_formats[src_index], GL_UNSIGNED_BYTE, nullptr); | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  |  | 
|  | if (copy_type == TexImage) { | 
|  | glCopyTextureCHROMIUM(textures_[0], textures_[1], | 
|  | dest_formats[dest_index], GL_UNSIGNED_BYTE, | 
|  | false, false, false); | 
|  | } else { | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[1]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, dest_formats[dest_index], 1, 1, 0, | 
|  | dest_formats[dest_index], GL_UNSIGNED_BYTE, nullptr); | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  |  | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], 0, | 
|  | 0, 0, 0, 1, 1, false, false, false); | 
|  | } | 
|  |  | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()) << "src_index:" << src_index | 
|  | << " dest_index:" << dest_index; | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | TEST_P(GLCopyTextureCHROMIUMTest, InternalFormatNotSupported) { | 
|  | CopyType copy_type = GetParam(); | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[0]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | nullptr); | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  |  | 
|  | // Check unsupported format reports error. | 
|  | GLint unsupported_dest_formats[] = {GL_ALPHA, GL_LUMINANCE, | 
|  | GL_LUMINANCE_ALPHA}; | 
|  | for (size_t dest_index = 0; dest_index < arraysize(unsupported_dest_formats); | 
|  | dest_index++) { | 
|  | if (copy_type == TexImage) { | 
|  | glCopyTextureCHROMIUM(textures_[0], textures_[1], | 
|  | unsupported_dest_formats[dest_index], | 
|  | GL_UNSIGNED_BYTE, false, false, false); | 
|  | } else { | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[1]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, unsupported_dest_formats[dest_index], 1, 1, | 
|  | 0, unsupported_dest_formats[dest_index], GL_UNSIGNED_BYTE, | 
|  | nullptr); | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], 0, 0, | 
|  | 0, 0, 1, 1, false, false, false); | 
|  | } | 
|  | EXPECT_TRUE(GL_INVALID_OPERATION == glGetError()) | 
|  | << "dest_index:" << dest_index; | 
|  | } | 
|  | } | 
|  |  | 
|  | TEST_F(GLCopyTextureCHROMIUMTest, InternalFormatTypeCombinationNotSupported) { | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[0]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | nullptr); | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  |  | 
|  | // Check unsupported internal_format/type combination reports error. | 
|  | struct FormatType { GLenum format, type; }; | 
|  | FormatType unsupported_format_types[] = { | 
|  | {GL_RGB, GL_UNSIGNED_SHORT_4_4_4_4}, | 
|  | {GL_RGB, GL_UNSIGNED_SHORT_5_5_5_1}, | 
|  | {GL_RGBA, GL_UNSIGNED_SHORT_5_6_5}, | 
|  | }; | 
|  | for (size_t dest_index = 0; dest_index < arraysize(unsupported_format_types); | 
|  | dest_index++) { | 
|  | glCopyTextureCHROMIUM( | 
|  | textures_[0], textures_[1], unsupported_format_types[dest_index].format, | 
|  | unsupported_format_types[dest_index].type, false, false, false); | 
|  | EXPECT_TRUE(GL_INVALID_OPERATION == glGetError()) | 
|  | << "dest_index:" << dest_index; | 
|  | } | 
|  | } | 
|  |  | 
|  | // Test to ensure that the destination texture is redefined if the properties | 
|  | // are different. | 
|  | TEST_F(GLCopyTextureCHROMIUMTest, RedefineDestinationTexture) { | 
|  | uint8_t pixels[4 * 4] = {255u, 0u, 0u, 255u, 255u, 0u, 0u, 255u, | 
|  | 255u, 0u, 0u, 255u, 255u, 0u, 0u, 255u}; | 
|  |  | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[0]); | 
|  | glTexImage2D( | 
|  | GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels); | 
|  |  | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[1]); | 
|  | glTexImage2D(GL_TEXTURE_2D, | 
|  | 0, | 
|  | GL_BGRA_EXT, | 
|  | 1, | 
|  | 1, | 
|  | 0, | 
|  | GL_BGRA_EXT, | 
|  | GL_UNSIGNED_BYTE, | 
|  | pixels); | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  |  | 
|  | // GL_INVALID_OPERATION due to "intrinsic format" != "internal format". | 
|  | glTexSubImage2D( | 
|  | GL_TEXTURE_2D, 0, 0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixels); | 
|  | EXPECT_TRUE(GL_INVALID_OPERATION == glGetError()); | 
|  | // GL_INVALID_VALUE due to bad dimensions. | 
|  | glTexSubImage2D( | 
|  | GL_TEXTURE_2D, 0, 1, 1, 1, 1, GL_BGRA_EXT, GL_UNSIGNED_BYTE, pixels); | 
|  | EXPECT_TRUE(GL_INVALID_VALUE == glGetError()); | 
|  |  | 
|  | // If the dest texture has different properties, glCopyTextureCHROMIUM() | 
|  | // redefines them. | 
|  | glCopyTextureCHROMIUM(textures_[0], textures_[1], GL_RGBA, | 
|  | GL_UNSIGNED_BYTE, false, false, false); | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  |  | 
|  | // glTexSubImage2D() succeeds because textures_[1] is redefined into 2x2 | 
|  | // dimension and GL_RGBA format. | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[1]); | 
|  | glTexSubImage2D( | 
|  | GL_TEXTURE_2D, 0, 1, 1, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixels); | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  |  | 
|  | // Check the FB is still bound. | 
|  | GLint value = 0; | 
|  | glGetIntegerv(GL_FRAMEBUFFER_BINDING, &value); | 
|  | GLuint fb_id = value; | 
|  | EXPECT_EQ(framebuffer_id_, fb_id); | 
|  |  | 
|  | // Check that FB is complete. | 
|  | EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE), | 
|  | glCheckFramebufferStatus(GL_FRAMEBUFFER)); | 
|  |  | 
|  | GLTestHelper::CheckPixels(1, 1, 1, 1, 0, &pixels[12]); | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  | } | 
|  |  | 
|  | namespace { | 
|  |  | 
|  | void glEnableDisable(GLint param, GLboolean value) { | 
|  | if (value) | 
|  | glEnable(param); | 
|  | else | 
|  | glDisable(param); | 
|  | } | 
|  |  | 
|  | }  // unnamed namespace | 
|  |  | 
|  | // Validate that some basic GL state is not touched upon execution of | 
|  | // the extension. | 
|  | TEST_P(GLCopyTextureCHROMIUMTest, BasicStatePreservation) { | 
|  | CopyType copy_type = GetParam(); | 
|  | uint8_t pixels[1 * 4] = {255u, 0u, 0u, 255u}; | 
|  |  | 
|  | glBindFramebuffer(GL_FRAMEBUFFER, 0); | 
|  |  | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[0]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | pixels); | 
|  |  | 
|  | if (copy_type == TexSubImage) { | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[1]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | nullptr); | 
|  | } | 
|  |  | 
|  | GLboolean reference_settings[2] = { GL_TRUE, GL_FALSE }; | 
|  | for (int x = 0; x < 2; ++x) { | 
|  | GLboolean setting = reference_settings[x]; | 
|  | glEnableDisable(GL_DEPTH_TEST, setting); | 
|  | glEnableDisable(GL_SCISSOR_TEST, setting); | 
|  | glEnableDisable(GL_STENCIL_TEST, setting); | 
|  | glEnableDisable(GL_CULL_FACE, setting); | 
|  | glEnableDisable(GL_BLEND, setting); | 
|  | glColorMask(setting, setting, setting, setting); | 
|  | glDepthMask(setting); | 
|  |  | 
|  | glActiveTexture(GL_TEXTURE1 + x); | 
|  |  | 
|  | if (copy_type == TexImage) { | 
|  | glCopyTextureCHROMIUM(textures_[0], textures_[1], GL_RGBA, | 
|  | GL_UNSIGNED_BYTE, false, false, false); | 
|  | } else { | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], 0, 0, | 
|  | 0, 0, 1, 1, false, false, false); | 
|  | } | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  |  | 
|  | EXPECT_EQ(setting, glIsEnabled(GL_DEPTH_TEST)); | 
|  | EXPECT_EQ(setting, glIsEnabled(GL_SCISSOR_TEST)); | 
|  | EXPECT_EQ(setting, glIsEnabled(GL_STENCIL_TEST)); | 
|  | EXPECT_EQ(setting, glIsEnabled(GL_CULL_FACE)); | 
|  | EXPECT_EQ(setting, glIsEnabled(GL_BLEND)); | 
|  |  | 
|  | GLboolean bool_array[4] = { GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE }; | 
|  | glGetBooleanv(GL_DEPTH_WRITEMASK, bool_array); | 
|  | EXPECT_EQ(setting, bool_array[0]); | 
|  |  | 
|  | bool_array[0] = GL_FALSE; | 
|  | glGetBooleanv(GL_COLOR_WRITEMASK, bool_array); | 
|  | EXPECT_EQ(setting, bool_array[0]); | 
|  | EXPECT_EQ(setting, bool_array[1]); | 
|  | EXPECT_EQ(setting, bool_array[2]); | 
|  | EXPECT_EQ(setting, bool_array[3]); | 
|  |  | 
|  | GLint active_texture = 0; | 
|  | glGetIntegerv(GL_ACTIVE_TEXTURE, &active_texture); | 
|  | EXPECT_EQ(GL_TEXTURE1 + x, active_texture); | 
|  | } | 
|  |  | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  | }; | 
|  |  | 
|  | // Verify that invocation of the extension does not modify the bound | 
|  | // texture state. | 
|  | TEST_P(GLCopyTextureCHROMIUMTest, TextureStatePreserved) { | 
|  | CopyType copy_type = GetParam(); | 
|  | // Setup the texture used for the extension invocation. | 
|  | uint8_t pixels[1 * 4] = {255u, 0u, 0u, 255u}; | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[0]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | pixels); | 
|  |  | 
|  | if (copy_type == TexSubImage) { | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[1]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | nullptr); | 
|  | } | 
|  |  | 
|  | GLuint texture_ids[2]; | 
|  | glGenTextures(2, texture_ids); | 
|  |  | 
|  | glActiveTexture(GL_TEXTURE0); | 
|  | glBindTexture(GL_TEXTURE_2D, texture_ids[0]); | 
|  |  | 
|  | glActiveTexture(GL_TEXTURE1); | 
|  | glBindTexture(GL_TEXTURE_2D, texture_ids[1]); | 
|  |  | 
|  | if (copy_type == TexImage) { | 
|  | glCopyTextureCHROMIUM(textures_[0], textures_[1], GL_RGBA, | 
|  | GL_UNSIGNED_BYTE, false, false, false); | 
|  | } else { | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], 0, 0, 0, | 
|  | 0, 1, 1, false, false, false); | 
|  | } | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  |  | 
|  | GLint active_texture = 0; | 
|  | glGetIntegerv(GL_ACTIVE_TEXTURE, &active_texture); | 
|  | EXPECT_EQ(GL_TEXTURE1, active_texture); | 
|  |  | 
|  | GLint bound_texture = 0; | 
|  | glGetIntegerv(GL_TEXTURE_BINDING_2D, &bound_texture); | 
|  | EXPECT_EQ(texture_ids[1], static_cast<GLuint>(bound_texture)); | 
|  | glBindTexture(GL_TEXTURE_2D, 0); | 
|  |  | 
|  | bound_texture = 0; | 
|  | glActiveTexture(GL_TEXTURE0); | 
|  | glGetIntegerv(GL_TEXTURE_BINDING_2D, &bound_texture); | 
|  | EXPECT_EQ(texture_ids[0], static_cast<GLuint>(bound_texture)); | 
|  | glBindTexture(GL_TEXTURE_2D, 0); | 
|  |  | 
|  | glDeleteTextures(2, texture_ids); | 
|  |  | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  | } | 
|  |  | 
|  | // Verify that invocation of the extension does not perturb the currently | 
|  | // bound FBO state. | 
|  | TEST_P(GLCopyTextureCHROMIUMTest, FBOStatePreserved) { | 
|  | CopyType copy_type = GetParam(); | 
|  | // Setup the texture used for the extension invocation. | 
|  | uint8_t pixels[1 * 4] = {255u, 0u, 0u, 255u}; | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[0]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | pixels); | 
|  |  | 
|  | if (copy_type == TexSubImage) { | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[1]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | nullptr); | 
|  | } | 
|  |  | 
|  | GLuint texture_id; | 
|  | glGenTextures(1, &texture_id); | 
|  | glBindTexture(GL_TEXTURE_2D, texture_id); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | 0); | 
|  |  | 
|  | GLuint renderbuffer_id; | 
|  | glGenRenderbuffers(1, &renderbuffer_id); | 
|  | glBindRenderbuffer(GL_RENDERBUFFER, renderbuffer_id); | 
|  | glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, 1, 1); | 
|  |  | 
|  | GLuint framebuffer_id; | 
|  | glGenFramebuffers(1, &framebuffer_id); | 
|  | glBindFramebuffer(GL_FRAMEBUFFER, framebuffer_id); | 
|  | glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, | 
|  | texture_id, 0); | 
|  | glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, | 
|  | GL_RENDERBUFFER, renderbuffer_id); | 
|  | EXPECT_TRUE( | 
|  | GL_FRAMEBUFFER_COMPLETE == glCheckFramebufferStatus(GL_FRAMEBUFFER)); | 
|  |  | 
|  | // Test that we can write to the bound framebuffer | 
|  | uint8_t expected_color[4] = {255u, 255u, 0, 255u}; | 
|  | glClearColor(1.0, 1.0, 0, 1.0); | 
|  | glClear(GL_COLOR_BUFFER_BIT); | 
|  | GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected_color); | 
|  |  | 
|  | if (copy_type == TexImage) { | 
|  | glCopyTextureCHROMIUM(textures_[0], textures_[1], GL_RGBA, | 
|  | GL_UNSIGNED_BYTE, false, false, false); | 
|  | } else { | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], 0, 0, 0, | 
|  | 0, 1, 1, false, false, false); | 
|  | } | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  |  | 
|  | EXPECT_TRUE(glIsFramebuffer(framebuffer_id)); | 
|  |  | 
|  | // Ensure that reading from the framebuffer produces correct pixels. | 
|  | GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected_color); | 
|  |  | 
|  | uint8_t expected_color2[4] = {255u, 0, 255u, 255u}; | 
|  | glClearColor(1.0, 0, 1.0, 1.0); | 
|  | glClear(GL_COLOR_BUFFER_BIT); | 
|  | GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected_color2); | 
|  |  | 
|  | GLint bound_fbo = 0; | 
|  | glGetIntegerv(GL_FRAMEBUFFER_BINDING, &bound_fbo); | 
|  | EXPECT_EQ(framebuffer_id, static_cast<GLuint>(bound_fbo)); | 
|  |  | 
|  | GLint fbo_params = 0; | 
|  | glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, | 
|  | GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, | 
|  | &fbo_params); | 
|  | EXPECT_EQ(GL_TEXTURE, fbo_params); | 
|  |  | 
|  | fbo_params = 0; | 
|  | glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, | 
|  | GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, | 
|  | &fbo_params); | 
|  | EXPECT_EQ(texture_id, static_cast<GLuint>(fbo_params)); | 
|  |  | 
|  | fbo_params = 0; | 
|  | glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, | 
|  | GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, | 
|  | &fbo_params); | 
|  | EXPECT_EQ(GL_RENDERBUFFER, fbo_params); | 
|  |  | 
|  | fbo_params = 0; | 
|  | glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, | 
|  | GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, | 
|  | &fbo_params); | 
|  | EXPECT_EQ(renderbuffer_id, static_cast<GLuint>(fbo_params)); | 
|  |  | 
|  | glDeleteRenderbuffers(1, &renderbuffer_id); | 
|  | glDeleteTextures(1, &texture_id); | 
|  | glDeleteFramebuffers(1, &framebuffer_id); | 
|  |  | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  | } | 
|  |  | 
|  | TEST_P(GLCopyTextureCHROMIUMTest, ProgramStatePreservation) { | 
|  | CopyType copy_type = GetParam(); | 
|  | // unbind the one created in setup. | 
|  | glBindFramebuffer(GL_FRAMEBUFFER, 0); | 
|  | glBindTexture(GL_TEXTURE_2D, 0); | 
|  |  | 
|  | GLManager gl2; | 
|  | GLManager::Options options; | 
|  | options.size = gfx::Size(16, 16); | 
|  | options.share_group_manager = &gl_; | 
|  | gl2.Initialize(options); | 
|  | gl_.MakeCurrent(); | 
|  |  | 
|  | static const char* v_shader_str = | 
|  | "attribute vec4 g_Position;\n" | 
|  | "void main()\n" | 
|  | "{\n" | 
|  | "   gl_Position = g_Position;\n" | 
|  | "}\n"; | 
|  | static const char* f_shader_str = | 
|  | "precision mediump float;\n" | 
|  | "void main()\n" | 
|  | "{\n" | 
|  | "  gl_FragColor = vec4(0,1,0,1);\n" | 
|  | "}\n"; | 
|  |  | 
|  | GLuint program = GLTestHelper::LoadProgram(v_shader_str, f_shader_str); | 
|  | glUseProgram(program); | 
|  | GLuint position_loc = glGetAttribLocation(program, "g_Position"); | 
|  | glFlush(); | 
|  |  | 
|  | // Delete program from other context. | 
|  | gl2.MakeCurrent(); | 
|  | glDeleteProgram(program); | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  | glFlush(); | 
|  |  | 
|  | // Program should still be usable on this context. | 
|  | gl_.MakeCurrent(); | 
|  |  | 
|  | GLTestHelper::SetupUnitQuad(position_loc); | 
|  |  | 
|  | // test using program before | 
|  | uint8_t expected[] = { | 
|  | 0, 255, 0, 255, | 
|  | }; | 
|  | uint8_t zero[] = { | 
|  | 0, 0, 0, 0, | 
|  | }; | 
|  | glClear(GL_COLOR_BUFFER_BIT); | 
|  | EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 0, zero)); | 
|  | glDrawArrays(GL_TRIANGLES, 0, 6); | 
|  | EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected)); | 
|  |  | 
|  | // Call copyTextureCHROMIUM | 
|  | uint8_t pixels[1 * 4] = {255u, 0u, 0u, 255u}; | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[0]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | pixels); | 
|  | if (copy_type == TexImage) { | 
|  | glCopyTextureCHROMIUM(textures_[0], textures_[1], GL_RGBA, | 
|  | GL_UNSIGNED_BYTE, false, false, false); | 
|  | } else { | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[1]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | nullptr); | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], 0, 0, 0, | 
|  | 0, 1, 1, false, false, false); | 
|  | } | 
|  |  | 
|  | // test using program after | 
|  | glClear(GL_COLOR_BUFFER_BIT); | 
|  | EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 0, zero)); | 
|  | glDrawArrays(GL_TRIANGLES, 0, 6); | 
|  | EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected)); | 
|  |  | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  |  | 
|  | gl2.MakeCurrent(); | 
|  | gl2.Destroy(); | 
|  | gl_.MakeCurrent(); | 
|  | } | 
|  |  | 
|  | // Test that glCopyTextureCHROMIUM doesn't leak uninitialized textures. | 
|  | TEST_P(GLCopyTextureCHROMIUMTest, UninitializedSource) { | 
|  | CopyType copy_type = GetParam(); | 
|  | const GLsizei kWidth = 64, kHeight = 64; | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[0]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, kWidth, kHeight, 0, GL_RGBA, | 
|  | GL_UNSIGNED_BYTE, nullptr); | 
|  |  | 
|  | if (copy_type == TexImage) { | 
|  | glCopyTextureCHROMIUM(textures_[0], textures_[1], GL_RGBA, | 
|  | GL_UNSIGNED_BYTE, false, false, false); | 
|  | } else { | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[1]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, kWidth, kHeight, 0, GL_RGBA, | 
|  | GL_UNSIGNED_BYTE, nullptr); | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], 0, 0, 0, | 
|  | 0, kWidth, kHeight, false, false, false); | 
|  | } | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  |  | 
|  | uint8_t pixels[kHeight][kWidth][4] = {{{1}}}; | 
|  | glReadPixels(0, 0, kWidth, kHeight, GL_RGBA, GL_UNSIGNED_BYTE, pixels); | 
|  | for (int x = 0; x < kWidth; ++x) { | 
|  | for (int y = 0; y < kHeight; ++y) { | 
|  | EXPECT_EQ(0, pixels[y][x][0]); | 
|  | EXPECT_EQ(0, pixels[y][x][1]); | 
|  | EXPECT_EQ(0, pixels[y][x][2]); | 
|  | EXPECT_EQ(0, pixels[y][x][3]); | 
|  | } | 
|  | } | 
|  |  | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  | } | 
|  |  | 
|  | TEST_F(GLCopyTextureCHROMIUMTest, CopySubTextureDimension) { | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[0]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | nullptr); | 
|  |  | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[1]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 3, 3, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | nullptr); | 
|  |  | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], 1, 1, 0, | 
|  | 0, 1, 1, false, false, false); | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  |  | 
|  | // xoffset < 0 | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], -1, 1, 0, | 
|  | 0, 1, 1, false, false, false); | 
|  | EXPECT_TRUE(glGetError() == GL_INVALID_VALUE); | 
|  |  | 
|  | // x < 0 | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], 1, 1, -1, | 
|  | 0, 1, 1, false, false, false); | 
|  | EXPECT_TRUE(glGetError() == GL_INVALID_VALUE); | 
|  |  | 
|  | // xoffset + width > dest_width | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], 2, 2, 0, | 
|  | 0, 2, 2, false, false, false); | 
|  | EXPECT_TRUE(glGetError() == GL_INVALID_VALUE); | 
|  |  | 
|  | // x + width > source_width | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], 0, 0, 1, | 
|  | 1, 2, 2, false, false, false); | 
|  | EXPECT_TRUE(glGetError() == GL_INVALID_VALUE); | 
|  | } | 
|  |  | 
|  | TEST_F(GLCopyTextureCHROMIUMTest, CopyTextureInvalidTextureIds) { | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[0]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | nullptr); | 
|  |  | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[1]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 3, 3, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | nullptr); | 
|  |  | 
|  | glCopyTextureCHROMIUM(textures_[0], 99993, GL_RGBA, | 
|  | GL_UNSIGNED_BYTE, false, false, false); | 
|  | EXPECT_TRUE(GL_INVALID_VALUE == glGetError()); | 
|  |  | 
|  | glCopyTextureCHROMIUM(99994, textures_[1], GL_RGBA, | 
|  | GL_UNSIGNED_BYTE, false, false, false); | 
|  | EXPECT_TRUE(GL_INVALID_VALUE == glGetError()); | 
|  |  | 
|  | glCopyTextureCHROMIUM(99995, 99996, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | false, false, false); | 
|  | EXPECT_TRUE(GL_INVALID_VALUE == glGetError()); | 
|  |  | 
|  | glCopyTextureCHROMIUM(textures_[0], textures_[1], GL_RGBA, | 
|  | GL_UNSIGNED_BYTE, false, false, false); | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  | } | 
|  |  | 
|  | TEST_F(GLCopyTextureCHROMIUMTest, CopySubTextureInvalidTextureIds) { | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[0]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | nullptr); | 
|  |  | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[1]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 3, 3, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | nullptr); | 
|  |  | 
|  | glCopySubTextureCHROMIUM(textures_[0], 99993, 1, 1, 0, 0, 1, 1, | 
|  | false, false, false); | 
|  | EXPECT_TRUE(GL_INVALID_VALUE == glGetError()); | 
|  |  | 
|  | glCopySubTextureCHROMIUM(99994, textures_[1], 1, 1, 0, 0, 1, 1, | 
|  | false, false, false); | 
|  | EXPECT_TRUE(GL_INVALID_VALUE == glGetError()); | 
|  |  | 
|  | glCopySubTextureCHROMIUM(99995, 99996, 1, 1, 0, 0, 1, 1, false, | 
|  | false, false); | 
|  | EXPECT_TRUE(GL_INVALID_VALUE == glGetError()); | 
|  |  | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], 1, 1, 0, | 
|  | 0, 1, 1, false, false, false); | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  | } | 
|  |  | 
|  | TEST_F(GLCopyTextureCHROMIUMTest, CopySubTextureOffset) { | 
|  | uint8_t rgba_pixels[4 * 4] = {255u, 0u, 0u,   255u, 0u, 255u, 0u, 255u, | 
|  | 0u,   0u, 255u, 255u, 0u, 0u,   0u, 255u}; | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[0]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | rgba_pixels); | 
|  |  | 
|  | uint8_t transparent_pixels[4 * 4] = {0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, | 
|  | 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u}; | 
|  | glBindTexture(GL_TEXTURE_2D, textures_[1]); | 
|  | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | transparent_pixels); | 
|  |  | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], 1, 1, 0, | 
|  | 0, 1, 1, false, false, false); | 
|  | EXPECT_TRUE(glGetError() == GL_NO_ERROR); | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], 1, 0, 1, | 
|  | 0, 1, 1, false, false, false); | 
|  | EXPECT_TRUE(glGetError() == GL_NO_ERROR); | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], 0, 1, 0, | 
|  | 1, 1, 1, false, false, false); | 
|  | EXPECT_TRUE(glGetError() == GL_NO_ERROR); | 
|  |  | 
|  | // Check the FB is still bound. | 
|  | GLint value = 0; | 
|  | glGetIntegerv(GL_FRAMEBUFFER_BINDING, &value); | 
|  | GLuint fb_id = value; | 
|  | EXPECT_EQ(framebuffer_id_, fb_id); | 
|  |  | 
|  | // Check that FB is complete. | 
|  | EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE), | 
|  | glCheckFramebufferStatus(GL_FRAMEBUFFER)); | 
|  |  | 
|  | uint8_t transparent[1 * 4] = {0u, 0u, 0u, 0u}; | 
|  | uint8_t red[1 * 4] = {255u, 0u, 0u, 255u}; | 
|  | uint8_t green[1 * 4] = {0u, 255u, 0u, 255u}; | 
|  | uint8_t blue[1 * 4] = {0u, 0u, 255u, 255u}; | 
|  | GLTestHelper::CheckPixels(0, 0, 1, 1, 0, transparent); | 
|  | GLTestHelper::CheckPixels(1, 1, 1, 1, 0, red); | 
|  | GLTestHelper::CheckPixels(1, 0, 1, 1, 0, green); | 
|  | GLTestHelper::CheckPixels(0, 1, 1, 1, 0, blue); | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  | } | 
|  |  | 
|  | TEST_F(GLCopyTextureCHROMIUMTest, CopyTextureBetweenTexture2DAndRectangleArb) { | 
|  | if (!GLTestHelper::HasExtension("GL_ARB_texture_rectangle")) { | 
|  | LOG(INFO) << | 
|  | "GL_ARB_texture_rectangle not supported. Skipping test..."; | 
|  | return; | 
|  | } | 
|  |  | 
|  | GLenum src_targets[] = {GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_2D}; | 
|  | GLenum dest_targets[] = {GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_2D}; | 
|  | GLsizei src_width = 30; | 
|  | GLsizei src_height = 14; | 
|  | GLsizei dest_width = 15; | 
|  | GLsizei dest_height = 13; | 
|  | GLsizei copy_region_x = 1; | 
|  | GLsizei copy_region_y = 1; | 
|  | GLsizei copy_region_width = 5; | 
|  | GLsizei copy_region_height = 3; | 
|  | uint8_t red[1 * 4] = {255u, 0u, 0u, 255u}; | 
|  | uint8_t blue[1 * 4] = {0u, 0u, 255u, 255u}; | 
|  | uint8_t green[1 * 4] = {0u, 255u, 0, 255u}; | 
|  | uint8_t white[1 * 4] = {255u, 255u, 255u, 255u}; | 
|  | uint8_t grey[1 * 4] = {199u, 199u, 199u, 255u}; | 
|  |  | 
|  | for (size_t src_index = 0; src_index < arraysize(src_targets); src_index++) { | 
|  | GLenum src_target = src_targets[src_index]; | 
|  | for (size_t dest_index = 0; dest_index < arraysize(dest_targets); | 
|  | dest_index++) { | 
|  | GLenum dest_target = dest_targets[dest_index]; | 
|  |  | 
|  | // SetUp() sets up textures with the wrong parameters for this test, and | 
|  | // TearDown() expects to successfully delete textures/framebuffers, so | 
|  | // this is the right place for the delete/create calls. | 
|  | glDeleteTextures(2, textures_); | 
|  | glDeleteFramebuffers(1, &framebuffer_id_); | 
|  | CreateAndBindDestinationTextureAndFBO(dest_target); | 
|  |  | 
|  | // Allocate source and destination textures. | 
|  | glBindTexture(src_target, textures_[0]); | 
|  | CreateBackingForTexture(src_target, src_width, src_height); | 
|  |  | 
|  | glBindTexture(dest_target, textures_[1]); | 
|  | CreateBackingForTexture(dest_target, dest_width, dest_height); | 
|  |  | 
|  | // The bottom left is red, bottom right is blue, top left is green, top | 
|  | // right is white. | 
|  | glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, src_target, | 
|  | textures_[0], 0); | 
|  | glBindTexture(src_target, textures_[0]); | 
|  | for (GLint x = 0; x < src_width; ++x) { | 
|  | for (GLint y = 0; y < src_height; ++y) { | 
|  | uint8_t* data; | 
|  | if (x < src_width / 2) { | 
|  | data = y < src_height / 2 ? red : green; | 
|  | } else { | 
|  | data = y < src_height / 2 ? blue : white; | 
|  | } | 
|  | glTexSubImage2D(src_target, 0, x, y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, | 
|  | data); | 
|  | } | 
|  | } | 
|  |  | 
|  | glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, dest_target, | 
|  | textures_[1], 0); | 
|  | glBindTexture(dest_target, textures_[1]); | 
|  |  | 
|  | // Copy the subtexture x=[13,18) y=[6,9) to the destination. | 
|  | glClearColor(grey[0] / 255.f, grey[1] / 255.f, grey[2] / 255.f, 1.0); | 
|  | glClear(GL_COLOR_BUFFER_BIT); | 
|  | glCopySubTextureCHROMIUM(textures_[0], textures_[1], copy_region_x, | 
|  | copy_region_y, 13, 6, copy_region_width, | 
|  | copy_region_height, false, false, false); | 
|  | EXPECT_TRUE(GL_NO_ERROR == glGetError()); | 
|  |  | 
|  | for (GLint x = 0; x < dest_width; ++x) { | 
|  | for (GLint y = 0; y < dest_height; ++y) { | 
|  | if (x < copy_region_x || x >= copy_region_x + copy_region_width || | 
|  | y < copy_region_y || y >= copy_region_y + copy_region_height) { | 
|  | GLTestHelper::CheckPixels(x, y, 1, 1, 0, grey); | 
|  | continue; | 
|  | } | 
|  |  | 
|  | uint8_t* expected_color; | 
|  | if (x < copy_region_x + 2) { | 
|  | expected_color = y < copy_region_y + 1 ? red : green; | 
|  | } else { | 
|  | expected_color = y < copy_region_y + 1 ? blue : white; | 
|  | } | 
|  | GLTestHelper::CheckPixels(x, y, 1, 1, 0, expected_color); | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | }  // namespace gpu |