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kc3-lang/angle/src/tests/gl_tests/BlitFramebufferANGLETest.cpp
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Author :
Jonah Ryan-Davis
Date : 2019-07-22 15:20:47
Hash : 0716ce0a
Message : Re-add case to blitframebuffer workaround where src is outside of bounds. On Mac, blitFramebuffer calls fail if the source region is not enclosed by the framebuffer. In this case, we must naively clip the source region and adjust the dest region accordingly. This is slightly different behavior and may cause issues with scaling so we use a separate workaround. Also, Windows NVIDIA has a driver bug that affects Vulkan device creation after blitting large textures, so it should be included in the original workaround. This CL cleans up the workaround to use more helpers from ANGLE and to generally improve readability. Bug: chromium:830046 Change-Id: I50bd97449725b738036e6bd3af82362020d7eda8 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1713090 Commit-Queue: Jonah Ryan-Davis <jonahr@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>
- src/tests/gl_tests/BlitFramebufferANGLETest.cpp
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// // Copyright 2015 The ANGLE Project Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // #include "test_utils/ANGLETest.h" #include "test_utils/gl_raii.h" using namespace angle; class BlitFramebufferANGLETest : public ANGLETest { protected: BlitFramebufferANGLETest() { setWindowWidth(32); setWindowHeight(32); setConfigRedBits(8); setConfigGreenBits(8); setConfigBlueBits(8); setConfigAlphaBits(8); setConfigDepthBits(24); setConfigStencilBits(8); mCheckerProgram = 0; mBlueProgram = 0; mRedProgram = 0; mOriginalFBO = 0; mUserFBO = 0; mUserColorBuffer = 0; mUserDepthStencilBuffer = 0; mSmallFBO = 0; mSmallColorBuffer = 0; mSmallDepthStencilBuffer = 0; mColorOnlyFBO = 0; mColorOnlyColorBuffer = 0; mDiffFormatFBO = 0; mDiffFormatColorBuffer = 0; mDiffSizeFBO = 0; mDiffSizeColorBuffer = 0; mMRTFBO = 0; mMRTColorBuffer0 = 0; mMRTColorBuffer1 = 0; mRGBAColorbuffer = 0; mRGBAFBO = 0; mRGBAMultisampledRenderbuffer = 0; mRGBAMultisampledFBO = 0; mBGRAColorbuffer = 0; mBGRAFBO = 0; mBGRAMultisampledRenderbuffer = 0; mBGRAMultisampledFBO = 0; } void testSetUp() override { mCheckerProgram = CompileProgram(essl1_shaders::vs::Passthrough(), essl1_shaders::fs::Checkered()); mBlueProgram = CompileProgram(essl1_shaders::vs::Simple(), essl1_shaders::fs::Blue()); mRedProgram = CompileProgram(essl1_shaders::vs::Simple(), essl1_shaders::fs::Red()); if (mCheckerProgram == 0 || mBlueProgram == 0 || mRedProgram == 0) { FAIL() << "shader compilation failed."; } EXPECT_GL_NO_ERROR(); GLint originalFBO; glGetIntegerv(GL_FRAMEBUFFER_BINDING, &originalFBO); if (originalFBO >= 0) { mOriginalFBO = (GLuint)originalFBO; } GLenum format = GL_BGRA_EXT; glGenFramebuffers(1, &mUserFBO); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); glGenTextures(1, &mUserColorBuffer); glGenRenderbuffers(1, &mUserDepthStencilBuffer); glBindTexture(GL_TEXTURE_2D, mUserColorBuffer); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mUserColorBuffer, 0); glTexImage2D(GL_TEXTURE_2D, 0, format, getWindowWidth(), getWindowHeight(), 0, format, GL_UNSIGNED_BYTE, nullptr); glBindRenderbuffer(GL_RENDERBUFFER, mUserDepthStencilBuffer); glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8_OES, getWindowWidth(), getWindowHeight()); glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, mUserDepthStencilBuffer); glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, mUserDepthStencilBuffer); ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); ASSERT_GL_NO_ERROR(); glGenFramebuffers(1, &mSmallFBO); glBindFramebuffer(GL_FRAMEBUFFER, mSmallFBO); glGenTextures(1, &mSmallColorBuffer); glGenRenderbuffers(1, &mSmallDepthStencilBuffer); glBindTexture(GL_TEXTURE_2D, mSmallColorBuffer); glTexImage2D(GL_TEXTURE_2D, 0, format, getWindowWidth() / 2, getWindowHeight() / 2, 0, format, GL_UNSIGNED_BYTE, nullptr); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mSmallColorBuffer, 0); glBindRenderbuffer(GL_RENDERBUFFER, mSmallDepthStencilBuffer); glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8_OES, getWindowWidth() / 2, getWindowHeight() / 2); glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, mSmallDepthStencilBuffer); glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, mSmallDepthStencilBuffer); ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); ASSERT_GL_NO_ERROR(); glGenFramebuffers(1, &mColorOnlyFBO); glBindFramebuffer(GL_FRAMEBUFFER, mColorOnlyFBO); glGenTextures(1, &mColorOnlyColorBuffer); glBindTexture(GL_TEXTURE_2D, mColorOnlyColorBuffer); glTexImage2D(GL_TEXTURE_2D, 0, format, getWindowWidth(), getWindowHeight(), 0, format, GL_UNSIGNED_BYTE, nullptr); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mColorOnlyColorBuffer, 0); ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); ASSERT_GL_NO_ERROR(); glGenFramebuffers(1, &mDiffFormatFBO); glBindFramebuffer(GL_FRAMEBUFFER, mDiffFormatFBO); glGenTextures(1, &mDiffFormatColorBuffer); glBindTexture(GL_TEXTURE_2D, mDiffFormatColorBuffer); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, getWindowWidth(), getWindowHeight(), 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, nullptr); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mDiffFormatColorBuffer, 0); ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); ASSERT_GL_NO_ERROR(); glGenFramebuffers(1, &mDiffSizeFBO); glBindFramebuffer(GL_FRAMEBUFFER, mDiffSizeFBO); glGenTextures(1, &mDiffSizeColorBuffer); glBindTexture(GL_TEXTURE_2D, mDiffSizeColorBuffer); glTexImage2D(GL_TEXTURE_2D, 0, format, getWindowWidth() * 2, getWindowHeight() * 2, 0, format, GL_UNSIGNED_BYTE, nullptr); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mDiffSizeColorBuffer, 0); ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); ASSERT_GL_NO_ERROR(); if (IsGLExtensionEnabled("GL_EXT_draw_buffers")) { glGenFramebuffers(1, &mMRTFBO); glBindFramebuffer(GL_FRAMEBUFFER, mMRTFBO); glGenTextures(1, &mMRTColorBuffer0); glGenTextures(1, &mMRTColorBuffer1); glBindTexture(GL_TEXTURE_2D, mMRTColorBuffer0); glTexImage2D(GL_TEXTURE_2D, 0, format, getWindowWidth(), getWindowHeight(), 0, format, GL_UNSIGNED_BYTE, nullptr); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, mMRTColorBuffer0, 0); glBindTexture(GL_TEXTURE_2D, mMRTColorBuffer1); glTexImage2D(GL_TEXTURE_2D, 0, format, getWindowWidth(), getWindowHeight(), 0, format, GL_UNSIGNED_BYTE, nullptr); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1_EXT, GL_TEXTURE_2D, mMRTColorBuffer1, 0); ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); ASSERT_GL_NO_ERROR(); } if (IsGLExtensionEnabled("GL_ANGLE_framebuffer_multisample") && IsGLExtensionEnabled("GL_OES_rgb8_rgba8")) { // RGBA single-sampled framebuffer glGenTextures(1, &mRGBAColorbuffer); glBindTexture(GL_TEXTURE_2D, mRGBAColorbuffer); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, getWindowWidth(), getWindowHeight(), 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); glGenFramebuffers(1, &mRGBAFBO); glBindFramebuffer(GL_FRAMEBUFFER, mRGBAFBO); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mRGBAColorbuffer, 0); ASSERT_GL_NO_ERROR(); ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); // RGBA multisampled framebuffer glGenRenderbuffers(1, &mRGBAMultisampledRenderbuffer); glBindRenderbuffer(GL_RENDERBUFFER, mRGBAMultisampledRenderbuffer); glRenderbufferStorageMultisampleANGLE(GL_RENDERBUFFER, 1, GL_RGBA8, getWindowWidth(), getWindowHeight()); glGenFramebuffers(1, &mRGBAMultisampledFBO); glBindFramebuffer(GL_FRAMEBUFFER, mRGBAMultisampledFBO); glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, mRGBAMultisampledRenderbuffer); ASSERT_GL_NO_ERROR(); ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); if (IsGLExtensionEnabled("GL_EXT_texture_format_BGRA8888")) { // BGRA single-sampled framebuffer glGenTextures(1, &mBGRAColorbuffer); glBindTexture(GL_TEXTURE_2D, mBGRAColorbuffer); glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT, getWindowWidth(), getWindowHeight(), 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, nullptr); glGenFramebuffers(1, &mBGRAFBO); glBindFramebuffer(GL_FRAMEBUFFER, mBGRAFBO); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mBGRAColorbuffer, 0); ASSERT_GL_NO_ERROR(); ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); // BGRA multisampled framebuffer glGenRenderbuffers(1, &mBGRAMultisampledRenderbuffer); glBindRenderbuffer(GL_RENDERBUFFER, mBGRAMultisampledRenderbuffer); glRenderbufferStorageMultisampleANGLE(GL_RENDERBUFFER, 1, GL_BGRA8_EXT, getWindowWidth(), getWindowHeight()); glGenFramebuffers(1, &mBGRAMultisampledFBO); glBindFramebuffer(GL_FRAMEBUFFER, mBGRAMultisampledFBO); glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, mBGRAMultisampledRenderbuffer); ASSERT_GL_NO_ERROR(); ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); } } glBindFramebuffer(GL_FRAMEBUFFER, mOriginalFBO); } void testTearDown() override { glDeleteProgram(mCheckerProgram); glDeleteProgram(mBlueProgram); glDeleteProgram(mRedProgram); glDeleteFramebuffers(1, &mUserFBO); glDeleteTextures(1, &mUserColorBuffer); glDeleteRenderbuffers(1, &mUserDepthStencilBuffer); glDeleteFramebuffers(1, &mSmallFBO); glDeleteTextures(1, &mSmallColorBuffer); glDeleteRenderbuffers(1, &mSmallDepthStencilBuffer); glDeleteFramebuffers(1, &mColorOnlyFBO); glDeleteTextures(1, &mSmallDepthStencilBuffer); glDeleteFramebuffers(1, &mDiffFormatFBO); glDeleteTextures(1, &mDiffFormatColorBuffer); glDeleteFramebuffers(1, &mDiffSizeFBO); glDeleteTextures(1, &mDiffSizeColorBuffer); if (IsGLExtensionEnabled("GL_EXT_draw_buffers")) { glDeleteFramebuffers(1, &mMRTFBO); glDeleteTextures(1, &mMRTColorBuffer0); glDeleteTextures(1, &mMRTColorBuffer1); } if (mRGBAColorbuffer != 0) { glDeleteTextures(1, &mRGBAColorbuffer); } if (mRGBAFBO != 0) { glDeleteFramebuffers(1, &mRGBAFBO); } if (mRGBAMultisampledRenderbuffer != 0) { glDeleteRenderbuffers(1, &mRGBAMultisampledRenderbuffer); } if (mRGBAMultisampledFBO != 0) { glDeleteFramebuffers(1, &mRGBAMultisampledFBO); } if (mBGRAColorbuffer != 0) { glDeleteTextures(1, &mBGRAColorbuffer); } if (mBGRAFBO != 0) { glDeleteFramebuffers(1, &mBGRAFBO); } if (mBGRAMultisampledRenderbuffer != 0) { glDeleteRenderbuffers(1, &mBGRAMultisampledRenderbuffer); } if (mBGRAMultisampledFBO != 0) { glDeleteFramebuffers(1, &mBGRAMultisampledFBO); } } void multisampleTestHelper(GLuint readFramebuffer, GLuint drawFramebuffer) { glClearColor(0.0, 1.0, 0.0, 1.0); glBindFramebuffer(GL_DRAW_FRAMEBUFFER, readFramebuffer); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_READ_FRAMEBUFFER, readFramebuffer); glBindFramebuffer(GL_DRAW_FRAMEBUFFER, drawFramebuffer); glBlitFramebufferANGLE(0, 0, getWindowWidth(), getWindowHeight(), 0, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_READ_FRAMEBUFFER, drawFramebuffer); EXPECT_PIXEL_EQ(getWindowWidth() / 4, getWindowHeight() / 4, 0, 255, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, getWindowHeight() / 4, 0, 255, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, 3 * getWindowHeight() / 4, 0, 255, 0, 255); EXPECT_PIXEL_EQ(getWindowWidth() / 4, 3 * getWindowHeight() / 4, 0, 255, 0, 255); } bool checkExtension(const std::string &extension) { if (!IsGLExtensionEnabled(extension)) { std::cout << "Test skipped because " << extension << " not supported." << std::endl; return false; } return true; } GLuint mCheckerProgram; GLuint mBlueProgram; GLuint mRedProgram; GLuint mOriginalFBO; GLuint mUserFBO; GLuint mUserColorBuffer; GLuint mUserDepthStencilBuffer; GLuint mSmallFBO; GLuint mSmallColorBuffer; GLuint mSmallDepthStencilBuffer; GLuint mColorOnlyFBO; GLuint mColorOnlyColorBuffer; GLuint mDiffFormatFBO; GLuint mDiffFormatColorBuffer; GLuint mDiffSizeFBO; GLuint mDiffSizeColorBuffer; GLuint mMRTFBO; GLuint mMRTColorBuffer0; GLuint mMRTColorBuffer1; GLuint mRGBAColorbuffer; GLuint mRGBAFBO; GLuint mRGBAMultisampledRenderbuffer; GLuint mRGBAMultisampledFBO; GLuint mBGRAColorbuffer; GLuint mBGRAFBO; GLuint mBGRAMultisampledRenderbuffer; GLuint mBGRAMultisampledFBO; }; // Draw to user-created framebuffer, blit whole-buffer color to original framebuffer. TEST_P(BlitFramebufferANGLETest, BlitColorToDefault) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.8f); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mUserFBO); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mOriginalFBO); glBlitFramebufferANGLE(0, 0, getWindowWidth(), getWindowHeight(), 0, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, mOriginalFBO); EXPECT_PIXEL_EQ(getWindowWidth() / 4, getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, getWindowHeight() / 4, 0, 255, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, 3 * getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(getWindowWidth() / 4, 3 * getWindowHeight() / 4, 0, 255, 0, 255); } // Draw to system framebuffer, blit whole-buffer color to user-created framebuffer. TEST_P(BlitFramebufferANGLETest, ReverseColorBlit) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); // TODO(jmadill): Fix this. http://anglebug.com/2743 ANGLE_SKIP_TEST_IF(IsVulkan() && IsAndroid()); glBindFramebuffer(GL_FRAMEBUFFER, mOriginalFBO); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.8f); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mOriginalFBO); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mUserFBO); glBlitFramebufferANGLE(0, 0, getWindowWidth(), getWindowHeight(), 0, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); EXPECT_PIXEL_EQ(getWindowWidth() / 4, getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, getWindowHeight() / 4, 0, 255, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, 3 * getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(getWindowWidth() / 4, 3 * getWindowHeight() / 4, 0, 255, 0, 255); } // blit from user-created FBO to system framebuffer, with the scissor test enabled. TEST_P(BlitFramebufferANGLETest, ScissoredBlit) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.8f); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mOriginalFBO); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mUserFBO); glClearColor(1.0, 1.0, 1.0, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); glScissor(getWindowWidth() / 2, 0, getWindowWidth() / 2, getWindowHeight()); glEnable(GL_SCISSOR_TEST); glBlitFramebufferANGLE(0, 0, getWindowWidth(), getWindowHeight(), 0, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glDisable(GL_SCISSOR_TEST); glBindFramebuffer(GL_FRAMEBUFFER, mOriginalFBO); EXPECT_PIXEL_EQ(getWindowWidth() / 4, getWindowHeight() / 4, 255, 255, 255, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, getWindowHeight() / 4, 0, 255, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, 3 * getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(getWindowWidth() / 4, 3 * getWindowHeight() / 4, 255, 255, 255, 255); } // blit from system FBO to user-created framebuffer, with the scissor test enabled. TEST_P(BlitFramebufferANGLETest, ReverseScissoredBlit) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); glBindFramebuffer(GL_FRAMEBUFFER, mOriginalFBO); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.8f); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mUserFBO); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mOriginalFBO); glClearColor(1.0, 1.0, 1.0, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); glScissor(getWindowWidth() / 2, 0, getWindowWidth() / 2, getWindowHeight()); glEnable(GL_SCISSOR_TEST); glBlitFramebufferANGLE(0, 0, getWindowWidth(), getWindowHeight(), 0, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glDisable(GL_SCISSOR_TEST); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); EXPECT_PIXEL_EQ(getWindowWidth() / 4, getWindowHeight() / 4, 255, 255, 255, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, getWindowHeight() / 4, 0, 255, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, 3 * getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(getWindowWidth() / 4, 3 * getWindowHeight() / 4, 255, 255, 255, 255); } // blit from user-created FBO to system framebuffer, using region larger than buffer. TEST_P(BlitFramebufferANGLETest, OversizedBlit) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.8f); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mOriginalFBO); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mUserFBO); glClearColor(1.0, 1.0, 1.0, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); glBlitFramebufferANGLE(0, 0, getWindowWidth() * 2, getWindowHeight() * 2, 0, 0, getWindowWidth() * 2, getWindowHeight() * 2, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, mOriginalFBO); EXPECT_PIXEL_EQ(getWindowWidth() / 4, getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, getWindowHeight() / 4, 0, 255, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, 3 * getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(getWindowWidth() / 4, 3 * getWindowHeight() / 4, 0, 255, 0, 255); } // blit from system FBO to user-created framebuffer, using region larger than buffer. TEST_P(BlitFramebufferANGLETest, ReverseOversizedBlit) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); glBindFramebuffer(GL_FRAMEBUFFER, mOriginalFBO); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.8f); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mUserFBO); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mOriginalFBO); glClearColor(1.0, 1.0, 1.0, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); glBlitFramebufferANGLE(0, 0, getWindowWidth() * 2, getWindowHeight() * 2, 0, 0, getWindowWidth() * 2, getWindowHeight() * 2, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); EXPECT_PIXEL_EQ(getWindowWidth() / 4, getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, getWindowHeight() / 4, 0, 255, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, 3 * getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(getWindowWidth() / 4, 3 * getWindowHeight() / 4, 0, 255, 0, 255); } // blit from user-created FBO to system framebuffer, with depth buffer. TEST_P(BlitFramebufferANGLETest, BlitWithDepthUserToDefault) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); glDepthMask(GL_TRUE); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); glEnable(GL_DEPTH_TEST); EXPECT_GL_NO_ERROR(); // Clear the first half of the screen glEnable(GL_SCISSOR_TEST); glScissor(0, 0, getWindowWidth(), getWindowHeight() / 2); glClearDepthf(0.1f); glClearColor(1.0, 0.0, 0.0, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Scissor the second half of the screen glScissor(0, getWindowHeight() / 2, getWindowWidth(), getWindowHeight() / 2); glClearDepthf(0.9f); glClearColor(0.0, 1.0, 0.0, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glDisable(GL_SCISSOR_TEST); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mOriginalFBO); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mUserFBO); glBlitFramebufferANGLE(0, 0, getWindowWidth(), getWindowHeight(), 0, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, mOriginalFBO); // if blit is happening correctly, this quad will draw only on the bottom half since it will // be behind on the first half and in front on the second half. drawQuad(mBlueProgram, essl1_shaders::PositionAttrib(), 0.5f); glDisable(GL_DEPTH_TEST); EXPECT_PIXEL_EQ(getWindowWidth() / 4, getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, 3 * getWindowHeight() / 4, 0, 0, 255, 255); EXPECT_PIXEL_EQ(getWindowWidth() / 4, 3 * getWindowHeight() / 4, 0, 0, 255, 255); } // blit from system FBO to user-created framebuffer, with depth buffer. TEST_P(BlitFramebufferANGLETest, BlitWithDepthDefaultToUser) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); glBindFramebuffer(GL_FRAMEBUFFER, mOriginalFBO); glDepthMask(GL_TRUE); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); glEnable(GL_DEPTH_TEST); EXPECT_GL_NO_ERROR(); // Clear the first half of the screen glEnable(GL_SCISSOR_TEST); glScissor(0, 0, getWindowWidth(), getWindowHeight() / 2); glClearDepthf(0.1f); glClearColor(1.0, 0.0, 0.0, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Scissor the second half of the screen glScissor(0, getWindowHeight() / 2, getWindowWidth(), getWindowHeight() / 2); glClearDepthf(0.9f); glClearColor(0.0, 1.0, 0.0, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glDisable(GL_SCISSOR_TEST); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mUserFBO); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mOriginalFBO); glBlitFramebufferANGLE(0, 0, getWindowWidth(), getWindowHeight(), 0, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); // if blit is happening correctly, this quad will draw only on the bottom half since it will be // behind on the first half and in front on the second half. drawQuad(mBlueProgram, essl1_shaders::PositionAttrib(), 0.5f); glDisable(GL_DEPTH_TEST); EXPECT_PIXEL_EQ(getWindowWidth() / 4, getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, 3 * getWindowHeight() / 4, 0, 0, 255, 255); EXPECT_PIXEL_EQ(getWindowWidth() / 4, 3 * getWindowHeight() / 4, 0, 0, 255, 255); } // blit from one region of the system fbo to another-- this should fail. TEST_P(BlitFramebufferANGLETest, BlitSameBufferOriginal) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); glBindFramebuffer(GL_FRAMEBUFFER, mOriginalFBO); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.3f); EXPECT_GL_NO_ERROR(); glBlitFramebufferANGLE(0, 0, getWindowWidth() / 2, getWindowHeight(), getWindowWidth() / 2, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_OPERATION); } // blit from one region of the system fbo to another. TEST_P(BlitFramebufferANGLETest, BlitSameBufferUser) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.3f); EXPECT_GL_NO_ERROR(); glBlitFramebufferANGLE(0, 0, getWindowWidth() / 2, getWindowHeight(), getWindowWidth() / 2, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_OPERATION); } TEST_P(BlitFramebufferANGLETest, BlitPartialColor) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.5f); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mOriginalFBO); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mUserFBO); glClearColor(1.0, 1.0, 1.0, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); glBlitFramebufferANGLE(0, 0, getWindowWidth() / 2, getWindowHeight() / 2, 0, getWindowHeight() / 2, getWindowWidth() / 2, getWindowHeight(), GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, mOriginalFBO); EXPECT_PIXEL_EQ(getWindowWidth() / 4, getWindowHeight() / 4, 255, 255, 255, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, getWindowHeight() / 4, 255, 255, 255, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, 3 * getWindowHeight() / 4, 255, 255, 255, 255); EXPECT_PIXEL_EQ(getWindowWidth() / 4, 3 * getWindowHeight() / 4, 255, 0, 0, 255); } TEST_P(BlitFramebufferANGLETest, BlitDifferentSizes) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.5f); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mSmallFBO); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mUserFBO); glClearColor(1.0, 1.0, 1.0, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); glBlitFramebufferANGLE(0, 0, getWindowWidth(), getWindowHeight(), 0, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, mSmallFBO); EXPECT_PIXEL_EQ(getWindowWidth() / 4, getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_GL_NO_ERROR(); } TEST_P(BlitFramebufferANGLETest, BlitWithMissingAttachments) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); glBindFramebuffer(GL_FRAMEBUFFER, mColorOnlyFBO); glClear(GL_COLOR_BUFFER_BIT); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.3f); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mOriginalFBO); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mColorOnlyFBO); glClearColor(1.0, 1.0, 1.0, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); // generate INVALID_OPERATION if the read FBO has no depth attachment glBlitFramebufferANGLE(0, 0, getWindowWidth(), getWindowHeight(), 0, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_OPERATION); // generate INVALID_OPERATION if the read FBO has no stencil attachment glBlitFramebufferANGLE(0, 0, getWindowWidth(), getWindowHeight(), 0, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_OPERATION); // generate INVALID_OPERATION if we read from a missing color attachment glReadBuffer(GL_COLOR_ATTACHMENT1); glBlitFramebufferANGLE(0, 0, getWindowWidth(), getWindowHeight(), 0, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_OPERATION); } TEST_P(BlitFramebufferANGLETest, BlitStencil) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); // TODO(jmadill): Figure out if we can fix this on D3D9. // https://code.google.com/p/angleproject/issues/detail?id=2205 ANGLE_SKIP_TEST_IF(IsIntel() && IsD3D9()); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); glClearColor(0.0, 1.0, 0.0, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glClearStencil(0x0); // Scissor half the screen so we fill the stencil only halfway glScissor(0, 0, getWindowWidth(), getWindowHeight() / 2); glEnable(GL_SCISSOR_TEST); // fill the stencil buffer with 0x1 glStencilFunc(GL_ALWAYS, 0x1, 0xFF); glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE); glEnable(GL_STENCIL_TEST); drawQuad(mRedProgram, essl1_shaders::PositionAttrib(), 0.3f); glDisable(GL_SCISSOR_TEST); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mOriginalFBO); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mUserFBO); // These clears are not useful in theory because we're copying over them, but its // helpful in debugging if we see white in any result. glClearColor(1.0, 1.0, 1.0, 1.0); glClearStencil(0x0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); // depth blit request should be silently ignored, because the read FBO has no depth attachment glBlitFramebufferANGLE(0, 0, getWindowWidth(), getWindowHeight(), 0, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, mOriginalFBO); EXPECT_PIXEL_EQ(getWindowWidth() / 4, getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, 3 * getWindowHeight() / 4, 0, 255, 0, 255); EXPECT_PIXEL_EQ(getWindowWidth() / 4, 3 * getWindowHeight() / 4, 0, 255, 0, 255); glStencilFunc(GL_EQUAL, 0x1, 0xFF); // only pass if stencil buffer at pixel reads 0x1 drawQuad(mBlueProgram, essl1_shaders::PositionAttrib(), 0.8f); // blue quad will draw if stencil buffer was copied glDisable(GL_STENCIL_TEST); EXPECT_PIXEL_EQ(getWindowWidth() / 4, getWindowHeight() / 4, 0, 0, 255, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, getWindowHeight() / 4, 0, 0, 255, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, 3 * getWindowHeight() / 4, 0, 255, 0, 255); EXPECT_PIXEL_EQ(getWindowWidth() / 4, 3 * getWindowHeight() / 4, 0, 255, 0, 255); } // make sure that attempting to blit a partial depth buffer issues an error TEST_P(BlitFramebufferANGLETest, BlitPartialDepthStencil) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.5f); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mOriginalFBO); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mUserFBO); glBlitFramebufferANGLE(0, 0, getWindowWidth() / 2, getWindowHeight() / 2, 0, 0, getWindowWidth() / 2, getWindowHeight() / 2, GL_DEPTH_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_OPERATION); } // Test blit with MRT framebuffers TEST_P(BlitFramebufferANGLETest, BlitMRT) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); if (!IsGLExtensionEnabled("GL_EXT_draw_buffers")) { return; } GLenum drawBuffers[] = {GL_COLOR_ATTACHMENT0_EXT, GL_COLOR_ATTACHMENT1_EXT}; glBindFramebuffer(GL_FRAMEBUFFER, mMRTFBO); glDrawBuffersEXT(2, drawBuffers); glBindFramebuffer(GL_FRAMEBUFFER, mColorOnlyFBO); glClear(GL_COLOR_BUFFER_BIT); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.8f); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mColorOnlyFBO); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mMRTFBO); glBlitFramebufferANGLE(0, 0, getWindowWidth(), getWindowHeight(), 0, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, mMRTFBO); EXPECT_PIXEL_EQ(getWindowWidth() / 4, getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, getWindowHeight() / 4, 0, 255, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, 3 * getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(getWindowWidth() / 4, 3 * getWindowHeight() / 4, 0, 255, 0, 255); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1_EXT, GL_TEXTURE_2D, 0, 0); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mMRTColorBuffer0, 0); EXPECT_PIXEL_EQ(getWindowWidth() / 4, getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, getWindowHeight() / 4, 0, 255, 0, 255); EXPECT_PIXEL_EQ(3 * getWindowWidth() / 4, 3 * getWindowHeight() / 4, 255, 0, 0, 255); EXPECT_PIXEL_EQ(getWindowWidth() / 4, 3 * getWindowHeight() / 4, 0, 255, 0, 255); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mMRTColorBuffer0, 0); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1_EXT, GL_TEXTURE_2D, mMRTColorBuffer1, 0); } // Test multisampled framebuffer blits if supported TEST_P(BlitFramebufferANGLETest, MultisampledRGBAToRGBA) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); if (!checkExtension("GL_ANGLE_framebuffer_multisample")) return; if (!checkExtension("GL_OES_rgb8_rgba8")) return; multisampleTestHelper(mRGBAMultisampledFBO, mRGBAFBO); } TEST_P(BlitFramebufferANGLETest, MultisampledRGBAToBGRA) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); if (!checkExtension("GL_ANGLE_framebuffer_multisample")) return; if (!checkExtension("GL_OES_rgb8_rgba8")) return; if (!checkExtension("GL_EXT_texture_format_BGRA8888")) return; multisampleTestHelper(mRGBAMultisampledFBO, mBGRAFBO); } TEST_P(BlitFramebufferANGLETest, MultisampledBGRAToRGBA) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); if (!checkExtension("GL_ANGLE_framebuffer_multisample")) return; if (!checkExtension("GL_OES_rgb8_rgba8")) return; if (!checkExtension("GL_EXT_texture_format_BGRA8888")) return; multisampleTestHelper(mBGRAMultisampledFBO, mRGBAFBO); } TEST_P(BlitFramebufferANGLETest, MultisampledBGRAToBGRA) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); if (!checkExtension("GL_ANGLE_framebuffer_multisample")) return; if (!checkExtension("GL_OES_rgb8_rgba8")) return; if (!checkExtension("GL_EXT_texture_format_BGRA8888")) return; multisampleTestHelper(mBGRAMultisampledFBO, mBGRAFBO); } // Make sure that attempts to stretch in a blit call issue an error TEST_P(BlitFramebufferANGLETest, ErrorStretching) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.5f); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mOriginalFBO); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mUserFBO); glBlitFramebufferANGLE(0, 0, getWindowWidth() / 2, getWindowHeight() / 2, 0, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_OPERATION); } // Make sure that attempts to flip in a blit call issue an error TEST_P(BlitFramebufferANGLETest, ErrorFlipping) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.5f); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mOriginalFBO); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mUserFBO); glBlitFramebufferANGLE(0, 0, getWindowWidth() / 2, getWindowHeight() / 2, getWindowWidth() / 2, getWindowHeight() / 2, 0, 0, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_OPERATION); } TEST_P(BlitFramebufferANGLETest, Errors) { ANGLE_SKIP_TEST_IF(!IsGLExtensionEnabled("GL_ANGLE_framebuffer_blit")); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.5f); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mOriginalFBO); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mUserFBO); glBlitFramebufferANGLE(0, 0, getWindowWidth(), getWindowHeight(), 0, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT, GL_LINEAR); EXPECT_GL_ERROR(GL_INVALID_ENUM); glBlitFramebufferANGLE(0, 0, getWindowWidth(), getWindowHeight(), 0, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT | 234, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_VALUE); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mDiffFormatFBO); glBlitFramebufferANGLE(0, 0, getWindowWidth(), getWindowHeight(), 0, 0, getWindowWidth(), getWindowHeight(), GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_OPERATION); } // TODO(geofflang): Fix the dependence on glBlitFramebufferANGLE without checks and assuming the // default framebuffer is BGRA to enable the GL and GLES backends. (http://anglebug.com/1289) class BlitFramebufferTest : public ANGLETest { protected: BlitFramebufferTest() { setWindowWidth(256); setWindowHeight(256); setConfigRedBits(8); setConfigGreenBits(8); setConfigBlueBits(8); setConfigAlphaBits(8); setConfigDepthBits(24); setConfigStencilBits(8); } void initColorFBO(GLFramebuffer *fbo, GLRenderbuffer *rbo, GLenum rboFormat, GLsizei width, GLsizei height) { glBindRenderbuffer(GL_RENDERBUFFER, *rbo); glRenderbufferStorage(GL_RENDERBUFFER, rboFormat, width, height); glBindFramebuffer(GL_FRAMEBUFFER, *fbo); glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, *rbo); } void initColorFBOWithCheckerPattern(GLFramebuffer *fbo, GLRenderbuffer *rbo, GLenum rboFormat, GLsizei width, GLsizei height) { initColorFBO(fbo, rbo, rboFormat, width, height); ANGLE_GL_PROGRAM(checkerProgram, essl1_shaders::vs::Passthrough(), essl1_shaders::fs::Checkered()); glViewport(0, 0, width, height); glBindFramebuffer(GL_FRAMEBUFFER, *fbo); drawQuad(checkerProgram.get(), essl1_shaders::PositionAttrib(), 0.5f); } }; // Tests resolving a multisample depth buffer. TEST_P(BlitFramebufferTest, MultisampleDepth) { // TODO(oetuaho@nvidia.com): http://crbug.com/837717 ANGLE_SKIP_TEST_IF(IsOpenGL() && IsOSX()); GLRenderbuffer renderbuf; glBindRenderbuffer(GL_RENDERBUFFER, renderbuf.get()); glRenderbufferStorageMultisample(GL_RENDERBUFFER, 2, GL_DEPTH_COMPONENT24, 256, 256); GLFramebuffer framebuffer; glBindFramebuffer(GL_FRAMEBUFFER, framebuffer.get()); glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, renderbuf.get()); ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); glClearDepthf(0.5f); glClear(GL_DEPTH_BUFFER_BIT); GLRenderbuffer destRenderbuf; glBindRenderbuffer(GL_RENDERBUFFER, destRenderbuf.get()); glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, 256, 256); GLFramebuffer resolved; glBindFramebuffer(GL_DRAW_FRAMEBUFFER, resolved.get()); glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, destRenderbuf.get()); glBindFramebuffer(GL_READ_FRAMEBUFFER, framebuffer.get()); glBlitFramebuffer(0, 0, 256, 256, 0, 0, 256, 256, GL_DEPTH_BUFFER_BIT, GL_NEAREST); glBindFramebuffer(GL_FRAMEBUFFER, resolved.get()); GLTexture colorbuf; glBindTexture(GL_TEXTURE_2D, colorbuf.get()); glTexStorage2D(GL_TEXTURE_2D, 1, GL_RGBA8, 256, 256); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, colorbuf.get(), 0); ASSERT_GL_NO_ERROR(); // Clear to green glClearColor(0.0f, 1.0f, 0.0f, 1.0f); glClear(GL_COLOR_BUFFER_BIT); EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green); // Make sure resulting depth is near 0.5f. ANGLE_GL_PROGRAM(drawRed, essl3_shaders::vs::Simple(), essl3_shaders::fs::Red()); glEnable(GL_DEPTH_TEST); glDepthMask(false); glDepthFunc(GL_LESS); drawQuad(drawRed.get(), essl3_shaders::PositionAttrib(), -0.01f); EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red); EXPECT_PIXEL_COLOR_EQ(255, 0, GLColor::red); EXPECT_PIXEL_COLOR_EQ(0, 255, GLColor::red); EXPECT_PIXEL_COLOR_EQ(255, 255, GLColor::red); EXPECT_PIXEL_COLOR_EQ(127, 127, GLColor::red); ANGLE_GL_PROGRAM(drawBlue, essl3_shaders::vs::Simple(), essl3_shaders::fs::Blue()); glEnable(GL_DEPTH_TEST); glDepthMask(false); glDepthFunc(GL_GREATER); drawQuad(drawBlue.get(), essl3_shaders::PositionAttrib(), 0.01f); EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::blue); EXPECT_PIXEL_COLOR_EQ(255, 0, GLColor::blue); EXPECT_PIXEL_COLOR_EQ(0, 255, GLColor::blue); EXPECT_PIXEL_COLOR_EQ(255, 255, GLColor::blue); EXPECT_PIXEL_COLOR_EQ(127, 127, GLColor::blue); ASSERT_GL_NO_ERROR(); } // Tests clearing a multisampled depth buffer. TEST_P(BlitFramebufferTest, MultisampleDepthClear) { // clearDepth && !maskDepth fails on Intel Ubuntu 19.04 Mesa 19.0.2 GL. http://anglebug.com/3614 ANGLE_SKIP_TEST_IF(IsLinux() && IsIntel() && IsDesktopOpenGL()); GLRenderbuffer depthMS; glBindRenderbuffer(GL_RENDERBUFFER, depthMS.get()); glRenderbufferStorageMultisample(GL_RENDERBUFFER, 2, GL_DEPTH_COMPONENT24, 256, 256); GLRenderbuffer colorMS; glBindRenderbuffer(GL_RENDERBUFFER, colorMS.get()); glRenderbufferStorageMultisample(GL_RENDERBUFFER, 2, GL_RGBA8, 256, 256); GLRenderbuffer colorResolved; glBindRenderbuffer(GL_RENDERBUFFER, colorResolved.get()); glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, 256, 256); GLFramebuffer framebufferMS; glBindFramebuffer(GL_FRAMEBUFFER, framebufferMS.get()); glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depthMS.get()); glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, colorMS.get()); // Clear depth buffer to 0.5 and color to green. glClearDepthf(0.5f); glClearColor(0.0f, 1.0f, 0.0f, 1.0f); glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT); glFlush(); // Draw red into the multisampled color buffer. ANGLE_GL_PROGRAM(drawRed, essl3_shaders::vs::Simple(), essl3_shaders::fs::Red()); glEnable(GL_DEPTH_TEST); glDepthFunc(GL_EQUAL); drawQuad(drawRed.get(), essl3_shaders::PositionAttrib(), 0.0f); // Resolve the color buffer to make sure the above draw worked correctly, which in turn implies // that the multisampled depth clear worked. GLFramebuffer framebufferResolved; glBindFramebuffer(GL_FRAMEBUFFER, framebufferResolved.get()); glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, colorResolved.get()); glBindFramebuffer(GL_READ_FRAMEBUFFER, framebufferMS.get()); glBlitFramebuffer(0, 0, 256, 256, 0, 0, 256, 256, GL_COLOR_BUFFER_BIT, GL_NEAREST); glBindFramebuffer(GL_FRAMEBUFFER, framebufferResolved.get()); ASSERT_GL_NO_ERROR(); EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red); EXPECT_PIXEL_COLOR_EQ(255, 0, GLColor::red); EXPECT_PIXEL_COLOR_EQ(0, 255, GLColor::red); EXPECT_PIXEL_COLOR_EQ(255, 255, GLColor::red); EXPECT_PIXEL_COLOR_EQ(127, 127, GLColor::red); ASSERT_GL_NO_ERROR(); } // Test resolving a multisampled stencil buffer. TEST_P(BlitFramebufferTest, MultisampleStencil) { // Incorrect rendering results seen on AMD Windows OpenGL. http://anglebug.com/2486 ANGLE_SKIP_TEST_IF(IsAMD() && IsOpenGL() && IsWindows()); GLRenderbuffer renderbuf; glBindRenderbuffer(GL_RENDERBUFFER, renderbuf.get()); glRenderbufferStorageMultisample(GL_RENDERBUFFER, 2, GL_STENCIL_INDEX8, 256, 256); ANGLE_GL_PROGRAM(drawRed, essl3_shaders::vs::Simple(), essl3_shaders::fs::Red()); GLFramebuffer framebuffer; glBindFramebuffer(GL_FRAMEBUFFER, framebuffer.get()); glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, renderbuf.get()); ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); // fill the stencil buffer with 0x1 glStencilFunc(GL_ALWAYS, 0x1, 0xFF); glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE); glEnable(GL_STENCIL_TEST); drawQuad(drawRed.get(), essl3_shaders::PositionAttrib(), 0.5f); GLTexture destColorbuf; glBindTexture(GL_TEXTURE_2D, destColorbuf.get()); glTexStorage2D(GL_TEXTURE_2D, 1, GL_RGBA8, 256, 256); GLRenderbuffer destRenderbuf; glBindRenderbuffer(GL_RENDERBUFFER, destRenderbuf.get()); glRenderbufferStorage(GL_RENDERBUFFER, GL_STENCIL_INDEX8, 256, 256); GLFramebuffer resolved; glBindFramebuffer(GL_DRAW_FRAMEBUFFER, resolved.get()); glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, destColorbuf.get(), 0); glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, destRenderbuf.get()); glBindFramebuffer(GL_READ_FRAMEBUFFER, framebuffer.get()); glBlitFramebuffer(0, 0, 256, 256, 0, 0, 256, 256, GL_STENCIL_BUFFER_BIT, GL_NEAREST); glBindFramebuffer(GL_FRAMEBUFFER, resolved.get()); ASSERT_GL_NO_ERROR(); // Clear to green glClearColor(0.0f, 1.0f, 0.0f, 1.0f); glClear(GL_COLOR_BUFFER_BIT); EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green); // Draw red if the stencil is 0x1, which should be true after the resolve. glStencilFunc(GL_EQUAL, 0x1, 0xFF); drawQuad(drawRed.get(), essl3_shaders::PositionAttrib(), 0.5f); EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red); ASSERT_GL_NO_ERROR(); } // Test resolving a multisampled stencil buffer with scissor. TEST_P(BlitFramebufferTest, ScissoredMultisampleStencil) { // Incorrect rendering results seen on AMD Windows OpenGL. http://anglebug.com/2486 ANGLE_SKIP_TEST_IF(IsAMD() && IsOpenGL() && IsWindows()); // Fails verifying that the middle pixel is red. http://anglebug.com/3496 ANGLE_SKIP_TEST_IF((IsIntel() || IsAMD()) && IsOSX()); constexpr GLuint kSize = 256; // Create the resolve framebuffer. GLTexture destColorbuf; glBindTexture(GL_TEXTURE_2D, destColorbuf.get()); glTexStorage2D(GL_TEXTURE_2D, 1, GL_RGBA8, kSize, kSize); GLRenderbuffer destRenderbuf; glBindRenderbuffer(GL_RENDERBUFFER, destRenderbuf.get()); glRenderbufferStorage(GL_RENDERBUFFER, GL_STENCIL_INDEX8, kSize, kSize); GLFramebuffer resolved; glBindFramebuffer(GL_FRAMEBUFFER, resolved.get()); glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, destColorbuf.get(), 0); glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, destRenderbuf.get()); // Clear the resolved buffer with gray and 0x10 stencil. GLColor gray(127, 127, 127, 255); glClearStencil(0x10); glClearColor(0.499f, 0.499f, 0.499f, 1.0f); glClear(GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); EXPECT_PIXEL_COLOR_EQ(0, 0, gray); EXPECT_PIXEL_COLOR_EQ(kSize / 2, kSize / 2, gray); // Create the multisampled framebuffer. GLRenderbuffer renderbuf; glBindRenderbuffer(GL_RENDERBUFFER, renderbuf.get()); glRenderbufferStorageMultisample(GL_RENDERBUFFER, 2, GL_STENCIL_INDEX8, kSize, kSize); ANGLE_GL_PROGRAM(drawRed, essl3_shaders::vs::Simple(), essl3_shaders::fs::Red()); ANGLE_GL_PROGRAM(drawGreen, essl3_shaders::vs::Simple(), essl3_shaders::fs::Green()); ANGLE_GL_PROGRAM(drawBlue, essl3_shaders::vs::Simple(), essl3_shaders::fs::Blue()); GLFramebuffer framebuffer; glBindFramebuffer(GL_FRAMEBUFFER, framebuffer.get()); glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, renderbuf.get()); ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); // Fill the stencil buffer with 0x1. glClearStencil(0x1); glClear(GL_STENCIL_BUFFER_BIT); // Fill a smaller region of the buffer with 0x2. glEnable(GL_SCISSOR_TEST); glEnable(GL_STENCIL_TEST); glScissor(kSize / 4, kSize / 4, kSize / 2, kSize / 2); glStencilFunc(GL_ALWAYS, 0x2, 0xFF); glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE); drawQuad(drawRed.get(), essl3_shaders::PositionAttrib(), 0.5f); // Blit into the resolved framebuffer (with scissor still enabled). glBindFramebuffer(GL_DRAW_FRAMEBUFFER, resolved.get()); glBlitFramebuffer(0, 0, kSize, kSize, 0, 0, kSize, kSize, GL_STENCIL_BUFFER_BIT, GL_NEAREST); glBindFramebuffer(GL_FRAMEBUFFER, resolved.get()); ASSERT_GL_NO_ERROR(); // Draw blue if the stencil is 0x1, which should never be true. glDisable(GL_SCISSOR_TEST); glStencilMask(0); glStencilFunc(GL_EQUAL, 0x1, 0xFF); drawQuad(drawBlue.get(), essl3_shaders::PositionAttrib(), 0.5f); EXPECT_PIXEL_COLOR_EQ(0, 0, gray); EXPECT_PIXEL_COLOR_EQ(kSize - 1, 0, gray); EXPECT_PIXEL_COLOR_EQ(0, kSize - 1, gray); EXPECT_PIXEL_COLOR_EQ(kSize - 1, kSize - 1, gray); EXPECT_PIXEL_COLOR_EQ(kSize / 2, kSize / 2, gray); // Draw red if the stencil is 0x2, which should be true in the middle after the blit/resolve. glStencilFunc(GL_EQUAL, 0x2, 0xFF); drawQuad(drawRed.get(), essl3_shaders::PositionAttrib(), 0.5f); EXPECT_PIXEL_COLOR_EQ(0, 0, gray); EXPECT_PIXEL_COLOR_EQ(kSize - 1, 0, gray); EXPECT_PIXEL_COLOR_EQ(0, kSize - 1, gray); EXPECT_PIXEL_COLOR_EQ(kSize - 1, kSize - 1, gray); EXPECT_PIXEL_COLOR_EQ(kSize / 2, kSize / 2, GLColor::red); // Draw green if the stencil is 0x10, which should be left untouched in the outer regions. glStencilFunc(GL_EQUAL, 0x10, 0xFF); drawQuad(drawGreen.get(), essl3_shaders::PositionAttrib(), 0.5f); EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green); EXPECT_PIXEL_COLOR_EQ(kSize - 1, 0, GLColor::green); EXPECT_PIXEL_COLOR_EQ(0, kSize - 1, GLColor::green); EXPECT_PIXEL_COLOR_EQ(kSize - 1, kSize - 1, GLColor::green); EXPECT_PIXEL_COLOR_EQ(kSize / 2, kSize / 2, GLColor::red); ASSERT_GL_NO_ERROR(); } // Blit an SRGB framebuffer and scale it. TEST_P(BlitFramebufferTest, BlitSRGBToRGBAndScale) { constexpr const GLsizei kWidth = 256; constexpr const GLsizei kHeight = 256; GLRenderbuffer sourceRBO, targetRBO; GLFramebuffer sourceFBO, targetFBO; initColorFBOWithCheckerPattern(&sourceFBO, &sourceRBO, GL_SRGB8_ALPHA8, kWidth * 2, kHeight * 2); initColorFBO(&targetFBO, &targetRBO, GL_RGBA8, kWidth, kHeight); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_READ_FRAMEBUFFER, sourceFBO); glBindFramebuffer(GL_DRAW_FRAMEBUFFER, targetFBO); glViewport(0, 0, kWidth, kHeight); glClearColor(0.0f, 0.0f, 0.0f, 0.0f); glClear(GL_COLOR_BUFFER_BIT); // Scale down without flipping. glBlitFramebuffer(0, 0, kWidth * 2, kHeight * 2, 0, 0, kWidth, kHeight, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, targetFBO); EXPECT_PIXEL_COLOR_EQ(kWidth / 4, kHeight / 4, GLColor::red); EXPECT_PIXEL_COLOR_EQ(3 * kWidth / 4, kHeight / 4, GLColor::green); EXPECT_PIXEL_COLOR_EQ(3 * kWidth / 4, 3 * kHeight / 4, GLColor::red); EXPECT_PIXEL_COLOR_EQ(kWidth / 4, 3 * kHeight / 4, GLColor::green); glBindFramebuffer(GL_READ_FRAMEBUFFER, sourceFBO); glBindFramebuffer(GL_DRAW_FRAMEBUFFER, targetFBO); glClearColor(0.0f, 0.0f, 0.0f, 0.0f); glClear(GL_COLOR_BUFFER_BIT); // Scale down and flip in the X direction. glBlitFramebuffer(0, 0, kWidth * 2, kHeight * 2, kWidth, 0, 0, kHeight, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, targetFBO); EXPECT_PIXEL_COLOR_EQ(kWidth / 4, kHeight / 4, GLColor::green); EXPECT_PIXEL_COLOR_EQ(3 * kWidth / 4, kHeight / 4, GLColor::red); EXPECT_PIXEL_COLOR_EQ(3 * kWidth / 4, 3 * kHeight / 4, GLColor::green); EXPECT_PIXEL_COLOR_EQ(kWidth / 4, 3 * kHeight / 4, GLColor::red); } // Blit stencil, with scissor and scale it. TEST_P(BlitFramebufferTest, BlitStencilScissoredScaled) { constexpr GLint kSize = 256; // Create the destination framebuffer. GLTexture destColorbuf; glBindTexture(GL_TEXTURE_2D, destColorbuf.get()); glTexStorage2D(GL_TEXTURE_2D, 1, GL_RGBA8, kSize, kSize); GLRenderbuffer destRenderbuf; glBindRenderbuffer(GL_RENDERBUFFER, destRenderbuf.get()); glRenderbufferStorage(GL_RENDERBUFFER, GL_STENCIL_INDEX8, kSize, kSize); GLFramebuffer destFBO; glBindFramebuffer(GL_FRAMEBUFFER, destFBO.get()); glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, destColorbuf.get(), 0); glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, destRenderbuf.get()); // Clear the destination buffer with gray and 0x10 stencil. GLColor gray(127, 127, 127, 255); glClearStencil(0x10); glClearColor(0.499f, 0.499f, 0.499f, 1.0f); glClear(GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); EXPECT_PIXEL_COLOR_EQ(0, 0, gray); EXPECT_PIXEL_COLOR_EQ(kSize / 2, kSize / 2, gray); // Create the source framebuffer. GLRenderbuffer renderbuf; glBindRenderbuffer(GL_RENDERBUFFER, renderbuf.get()); glRenderbufferStorage(GL_RENDERBUFFER, GL_STENCIL_INDEX8, kSize, kSize); ANGLE_GL_PROGRAM(drawRed, essl3_shaders::vs::Simple(), essl3_shaders::fs::Red()); ANGLE_GL_PROGRAM(drawGreen, essl3_shaders::vs::Simple(), essl3_shaders::fs::Green()); ANGLE_GL_PROGRAM(drawBlue, essl3_shaders::vs::Simple(), essl3_shaders::fs::Blue()); GLFramebuffer sourceFBO; glBindFramebuffer(GL_FRAMEBUFFER, sourceFBO.get()); glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, renderbuf.get()); ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); // Fill the stencil buffer with 0x1. glClearStencil(0x1); glClear(GL_STENCIL_BUFFER_BIT); // Fill a smaller region of the buffer with 0x2. glEnable(GL_SCISSOR_TEST); glEnable(GL_STENCIL_TEST); glScissor(kSize / 4, kSize / 4, kSize / 2, kSize / 2); glStencilFunc(GL_ALWAYS, 0x2, 0xFF); glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE); drawQuad(drawRed.get(), essl3_shaders::PositionAttrib(), 0.5f); // Blit and scale down into the destination framebuffer (with scissor still enabled). // // Source looks like this: // // +----|----|----|----+ // | | // | 0x1 | // - +---------+ - // | | | | // | | | | // - | 0x2 | - // | | | | // | | | | // - +---------+ - // | | // | | // +----|----|----|----+ // // We want the destination to look like this: // // +----|----|----|----+ // | | // | 0x10 | // - +---------+ - // | | 0x1 | | // | | +------+ | // - | | | - // | | | 0x2 | | // | | | | | // - +--+------+ - // | | // | | // +----|----|----|----+ // // The corresponding blit would be: (0, 0, 3/4, 3/4) -> (1/4, 1/4, 3/4, 3/4). For testing, we // would like to avoid having the destination area and scissor to match. Using destination // area as (0, 0, 1, 1), and keeping the same scaling, the source area should be // (-3/8, -3/8, 9/8, 9/8). // glBindFramebuffer(GL_DRAW_FRAMEBUFFER, destFBO.get()); constexpr GLint kBlitSrc[2] = {-3 * kSize / 8, 9 * kSize / 8}; glBlitFramebuffer(kBlitSrc[0], kBlitSrc[0], kBlitSrc[1], kBlitSrc[1], 0, 0, kSize, kSize, GL_STENCIL_BUFFER_BIT, GL_NEAREST); glBindFramebuffer(GL_FRAMEBUFFER, destFBO.get()); ASSERT_GL_NO_ERROR(); // Draw blue if the stencil is 0x1, which should be true only in the top and left of the inner // square. glDisable(GL_SCISSOR_TEST); glStencilMask(0); glStencilFunc(GL_EQUAL, 0x1, 0xFF); drawQuad(drawBlue.get(), essl3_shaders::PositionAttrib(), 0.5f); EXPECT_PIXEL_COLOR_EQ(0, 0, gray); EXPECT_PIXEL_COLOR_EQ(kSize - 1, 0, gray); EXPECT_PIXEL_COLOR_EQ(0, kSize - 1, gray); EXPECT_PIXEL_COLOR_EQ(kSize - 1, kSize - 1, gray); EXPECT_PIXEL_COLOR_EQ(kSize / 4, kSize / 4, GLColor::blue); EXPECT_PIXEL_COLOR_EQ(kSize / 4, 3 * kSize / 4 - 1, GLColor::blue); EXPECT_PIXEL_COLOR_EQ(3 * kSize / 4 - 1, kSize / 4, GLColor::blue); EXPECT_PIXEL_COLOR_EQ(kSize / 2, kSize / 2, gray); EXPECT_PIXEL_COLOR_EQ(3 * kSize / 4 - 1, 3 * kSize / 4 - 1, gray); // Draw red if the stencil is 0x2, which should be true in the bottom/right of the middle // square after the blit. glStencilFunc(GL_EQUAL, 0x2, 0xFF); drawQuad(drawRed.get(), essl3_shaders::PositionAttrib(), 0.5f); EXPECT_PIXEL_COLOR_EQ(0, 0, gray); EXPECT_PIXEL_COLOR_EQ(kSize - 1, 0, gray); EXPECT_PIXEL_COLOR_EQ(0, kSize - 1, gray); EXPECT_PIXEL_COLOR_EQ(kSize - 1, kSize - 1, gray); EXPECT_PIXEL_COLOR_EQ(kSize / 4, kSize / 4, GLColor::blue); EXPECT_PIXEL_COLOR_EQ(kSize / 4, 3 * kSize / 4 - 1, GLColor::blue); EXPECT_PIXEL_COLOR_EQ(3 * kSize / 4 - 1, kSize / 4, GLColor::blue); EXPECT_PIXEL_COLOR_EQ(kSize / 2, kSize / 2, GLColor::red); EXPECT_PIXEL_COLOR_EQ(3 * kSize / 4 - 1, 3 * kSize / 4 - 1, GLColor::red); // Draw green if the stencil is 0x10, which should be left untouched in the outer regions. glStencilFunc(GL_EQUAL, 0x10, 0xFF); drawQuad(drawGreen.get(), essl3_shaders::PositionAttrib(), 0.5f); EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green); EXPECT_PIXEL_COLOR_EQ(kSize - 1, 0, GLColor::green); EXPECT_PIXEL_COLOR_EQ(0, kSize - 1, GLColor::green); EXPECT_PIXEL_COLOR_EQ(kSize - 1, kSize - 1, GLColor::green); EXPECT_PIXEL_COLOR_EQ(kSize / 4, kSize / 4, GLColor::blue); EXPECT_PIXEL_COLOR_EQ(kSize / 4, 3 * kSize / 4 - 1, GLColor::blue); EXPECT_PIXEL_COLOR_EQ(3 * kSize / 4 - 1, kSize / 4, GLColor::blue); EXPECT_PIXEL_COLOR_EQ(kSize / 2, kSize / 2, GLColor::red); EXPECT_PIXEL_COLOR_EQ(3 * kSize / 4 - 1, 3 * kSize / 4 - 1, GLColor::red); ASSERT_GL_NO_ERROR(); } // Blit a subregion of an SRGB framebuffer to an RGB framebuffer. TEST_P(BlitFramebufferTest, PartialBlitSRGBToRGB) { constexpr const GLsizei kWidth = 256; constexpr const GLsizei kHeight = 256; GLRenderbuffer sourceRBO, targetRBO; GLFramebuffer sourceFBO, targetFBO; initColorFBOWithCheckerPattern(&sourceFBO, &sourceRBO, GL_SRGB8_ALPHA8, kWidth * 2, kHeight * 2); initColorFBO(&targetFBO, &targetRBO, GL_RGBA8, kWidth, kHeight); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_READ_FRAMEBUFFER, sourceFBO); glBindFramebuffer(GL_DRAW_FRAMEBUFFER, targetFBO); glViewport(0, 0, kWidth, kHeight); glClearColor(0.0f, 0.0f, 0.0f, 0.0f); glClear(GL_COLOR_BUFFER_BIT); // Blit a part of the source FBO without flipping. glBlitFramebuffer(kWidth, kHeight, kWidth * 2, kHeight * 2, 0, 0, kWidth, kHeight, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, targetFBO); EXPECT_PIXEL_COLOR_EQ(kWidth / 4, kHeight / 4, GLColor::red); EXPECT_PIXEL_COLOR_EQ(3 * kWidth / 4, kHeight / 4, GLColor::red); EXPECT_PIXEL_COLOR_EQ(3 * kWidth / 4, 3 * kHeight / 4, GLColor::red); EXPECT_PIXEL_COLOR_EQ(kWidth / 4, 3 * kHeight / 4, GLColor::red); glBindFramebuffer(GL_READ_FRAMEBUFFER, sourceFBO); glBindFramebuffer(GL_DRAW_FRAMEBUFFER, targetFBO); glClearColor(0.0f, 0.0f, 0.0f, 0.0f); glClear(GL_COLOR_BUFFER_BIT); // Blit a part of the source FBO and flip in the X direction. glBlitFramebuffer(kWidth * 2, 0, kWidth, kHeight, kWidth, 0, 0, kHeight, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, targetFBO); EXPECT_PIXEL_COLOR_EQ(kWidth / 4, kHeight / 4, GLColor::green); EXPECT_PIXEL_COLOR_EQ(3 * kWidth / 4, kHeight / 4, GLColor::green); EXPECT_PIXEL_COLOR_EQ(3 * kWidth / 4, 3 * kHeight / 4, GLColor::green); EXPECT_PIXEL_COLOR_EQ(kWidth / 4, 3 * kHeight / 4, GLColor::green); } // Blit an SRGB framebuffer with an oversized source area (parts outside the source area should be // clipped out). TEST_P(BlitFramebufferTest, BlitSRGBToRGBOversizedSourceArea) { constexpr const GLsizei kWidth = 256; constexpr const GLsizei kHeight = 256; GLRenderbuffer sourceRBO, targetRBO; GLFramebuffer sourceFBO, targetFBO; initColorFBOWithCheckerPattern(&sourceFBO, &sourceRBO, GL_SRGB8_ALPHA8, kWidth, kHeight); initColorFBO(&targetFBO, &targetRBO, GL_RGBA8, kWidth, kHeight); EXPECT_GL_NO_ERROR(); glViewport(0, 0, kWidth, kHeight); glBindFramebuffer(GL_READ_FRAMEBUFFER, sourceFBO); glBindFramebuffer(GL_DRAW_FRAMEBUFFER, targetFBO); glClearColor(0.0f, 0.0f, 1.0f, 1.0f); glClear(GL_COLOR_BUFFER_BIT); // Blit so that the source area gets placed at the center of the target FBO. // The width of the source area is 1/4 of the width of the target FBO. glBlitFramebuffer(-3 * kWidth / 2, -3 * kHeight / 2, 5 * kWidth / 2, 5 * kHeight / 2, 0, 0, kWidth, kHeight, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, targetFBO); // Source FBO colors can be found in the middle of the target FBO. EXPECT_PIXEL_COLOR_EQ(7 * kWidth / 16, 7 * kHeight / 16, GLColor::red); EXPECT_PIXEL_COLOR_EQ(9 * kWidth / 16, 7 * kHeight / 16, GLColor::green); EXPECT_PIXEL_COLOR_EQ(9 * kWidth / 16, 9 * kHeight / 16, GLColor::red); EXPECT_PIXEL_COLOR_EQ(7 * kWidth / 16, 9 * kHeight / 16, GLColor::green); // Clear color should remain around the edges of the target FBO (WebGL 2.0 spec explicitly // requires this and ANGLE is expected to follow that). EXPECT_PIXEL_COLOR_EQ(kWidth / 4, kHeight / 4, GLColor::blue); EXPECT_PIXEL_COLOR_EQ(3 * kWidth / 4, kHeight / 4, GLColor::blue); EXPECT_PIXEL_COLOR_EQ(3 * kWidth / 4, 3 * kHeight / 4, GLColor::blue); EXPECT_PIXEL_COLOR_EQ(kWidth / 4, 3 * kHeight / 4, GLColor::blue); } // Blit an SRGB framebuffer with an oversized dest area (even though the result is clipped, it // should be scaled as if the whole dest area was used). TEST_P(BlitFramebufferTest, BlitSRGBToRGBOversizedDestArea) { constexpr const GLsizei kWidth = 256; constexpr const GLsizei kHeight = 256; GLRenderbuffer sourceRBO, targetRBO; GLFramebuffer sourceFBO, targetFBO; initColorFBOWithCheckerPattern(&sourceFBO, &sourceRBO, GL_SRGB8_ALPHA8, kWidth, kHeight); initColorFBO(&targetFBO, &targetRBO, GL_RGBA8, kWidth, kHeight); EXPECT_GL_NO_ERROR(); glViewport(0, 0, kWidth, kHeight); glClearColor(0.0f, 0.0f, 1.0f, 1.0f); glClear(GL_COLOR_BUFFER_BIT); // Dest is oversized but centered the same as source glBindFramebuffer(GL_READ_FRAMEBUFFER, sourceFBO); glBindFramebuffer(GL_DRAW_FRAMEBUFFER, targetFBO); glBlitFramebuffer(0, 0, kWidth, kHeight, -kWidth / 2, -kHeight / 2, 3 * kWidth / 2, 3 * kHeight / 2, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, targetFBO); EXPECT_PIXEL_COLOR_EQ(1, 1, GLColor::red); EXPECT_PIXEL_COLOR_EQ(kWidth / 4, kHeight / 4, GLColor::red); EXPECT_PIXEL_COLOR_EQ(kWidth / 2 - 1, kHeight / 2 - 1, GLColor::red); EXPECT_PIXEL_COLOR_EQ(1, kWidth - 1, GLColor::green); EXPECT_PIXEL_COLOR_EQ(kWidth / 4, 3 * kHeight / 4, GLColor::green); EXPECT_PIXEL_COLOR_EQ(kWidth / 2 - 1, kHeight / 2 + 1, GLColor::green); EXPECT_PIXEL_COLOR_EQ(kWidth - 1, 1, GLColor::green); EXPECT_PIXEL_COLOR_EQ(3 * kWidth / 4, kHeight / 4, GLColor::green); EXPECT_PIXEL_COLOR_EQ(kWidth / 2 + 1, kHeight / 2 - 1, GLColor::green); EXPECT_PIXEL_COLOR_EQ(kWidth - 1, kHeight - 1, GLColor::red); EXPECT_PIXEL_COLOR_EQ(3 * kWidth / 4, 3 * kHeight / 4, GLColor::red); EXPECT_PIXEL_COLOR_EQ(kWidth / 2 + 1, kHeight / 2 + 1, GLColor::red); // Dest is oversized in the negative direction glBindFramebuffer(GL_READ_FRAMEBUFFER, sourceFBO); glBindFramebuffer(GL_DRAW_FRAMEBUFFER, targetFBO); glBlitFramebuffer(0, 0, kWidth, kHeight, -kWidth / 2, -kHeight / 2, kWidth, kHeight, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, targetFBO); EXPECT_PIXEL_COLOR_EQ(1, 1, GLColor::red); EXPECT_PIXEL_COLOR_EQ(kWidth / 2 - 1, kHeight / 2 - 1, GLColor::red); EXPECT_PIXEL_COLOR_EQ(1, kWidth - 1, GLColor::green); EXPECT_PIXEL_COLOR_EQ(kWidth / 4, 3 * kHeight / 4, GLColor::red); EXPECT_PIXEL_COLOR_EQ(kWidth / 2 - 1, kHeight / 2 + 1, GLColor::red); EXPECT_PIXEL_COLOR_EQ(kWidth - 1, 1, GLColor::green); EXPECT_PIXEL_COLOR_EQ(3 * kWidth / 4, kHeight / 4, GLColor::red); EXPECT_PIXEL_COLOR_EQ(kWidth / 2 + 1, kHeight / 2 - 1, GLColor::red); EXPECT_PIXEL_COLOR_EQ(kWidth - 1, kHeight - 1, GLColor::red); EXPECT_PIXEL_COLOR_EQ(3 * kWidth / 4, 3 * kHeight / 4, GLColor::red); EXPECT_PIXEL_COLOR_EQ(kWidth / 2 + 1, kHeight / 2 + 1, GLColor::red); // Dest is oversized in the positive direction glBindFramebuffer(GL_READ_FRAMEBUFFER, sourceFBO); glBindFramebuffer(GL_DRAW_FRAMEBUFFER, targetFBO); glBlitFramebuffer(0, 0, kWidth, kHeight, 0, 0, 3 * kWidth / 2, 3 * kHeight / 2, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, targetFBO); EXPECT_PIXEL_COLOR_EQ(1, 1, GLColor::red); EXPECT_PIXEL_COLOR_EQ(kWidth / 4, kHeight / 4, GLColor::red); EXPECT_PIXEL_COLOR_EQ(kWidth / 2 - 1, kHeight / 2 - 1, GLColor::red); EXPECT_PIXEL_COLOR_EQ(1, kWidth - 1, GLColor::green); EXPECT_PIXEL_COLOR_EQ(kWidth / 4, 3 * kHeight / 4, GLColor::green); EXPECT_PIXEL_COLOR_EQ(kWidth / 2 - 1, kHeight / 2 + 1, GLColor::red); EXPECT_PIXEL_COLOR_EQ(kWidth - 1, 1, GLColor::green); EXPECT_PIXEL_COLOR_EQ(3 * kWidth / 4, kHeight / 4, GLColor::green); EXPECT_PIXEL_COLOR_EQ(kWidth / 2 + 1, kHeight / 2 - 1, GLColor::red); EXPECT_PIXEL_COLOR_EQ(kWidth - 1, kHeight - 1, GLColor::red); EXPECT_PIXEL_COLOR_EQ(kWidth / 2 + 1, kHeight / 2 + 1, GLColor::red); } // Test blitFramebuffer size overflow checks. WebGL 2.0 spec section 5.41. We do validation for // overflows also in non-WebGL mode to avoid triggering driver bugs. TEST_P(BlitFramebufferTest, BlitFramebufferSizeOverflow) { GLTexture textures[2]; glBindTexture(GL_TEXTURE_2D, textures[0]); glTexStorage2D(GL_TEXTURE_2D, 3, GL_RGBA8, 4, 4); glBindTexture(GL_TEXTURE_2D, textures[1]); glTexStorage2D(GL_TEXTURE_2D, 3, GL_RGBA8, 4, 4); GLFramebuffer framebuffers[2]; glBindFramebuffer(GL_READ_FRAMEBUFFER, framebuffers[0]); glBindFramebuffer(GL_DRAW_FRAMEBUFFER, framebuffers[1]); ASSERT_GL_NO_ERROR(); glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textures[0], 0); glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textures[1], 0); ASSERT_GL_NO_ERROR(); // srcX glBlitFramebuffer(-1, 0, std::numeric_limits<GLint>::max(), 4, 0, 0, 4, 4, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_VALUE); glBlitFramebuffer(std::numeric_limits<GLint>::max(), 0, -1, 4, 0, 0, 4, 4, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_VALUE); // srcY glBlitFramebuffer(0, -1, 4, std::numeric_limits<GLint>::max(), 0, 0, 4, 4, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_VALUE); glBlitFramebuffer(0, std::numeric_limits<GLint>::max(), 4, -1, 0, 0, 4, 4, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_VALUE); // dstX glBlitFramebuffer(0, 0, 4, 4, -1, 0, std::numeric_limits<GLint>::max(), 4, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_VALUE); glBlitFramebuffer(0, 0, 4, 4, std::numeric_limits<GLint>::max(), 0, -1, 4, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_VALUE); // dstY glBlitFramebuffer(0, 0, 4, 4, 0, -1, 4, std::numeric_limits<GLint>::max(), GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_VALUE); glBlitFramebuffer(0, 0, 4, 4, 0, std::numeric_limits<GLint>::max(), 4, -1, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_VALUE); } // Test blitFramebuffer size overflow checks. WebGL 2.0 spec section 5.41. Similar to above test, // but this test more accurately duplicates the behavior of the WebGL test // conformance2/rendering/blitframebuffer-size-overflow.html, which covers a few more edge cases. TEST_P(BlitFramebufferTest, BlitFramebufferSizeOverflow2) { GLTexture textures[2]; glBindTexture(GL_TEXTURE_2D, textures[0]); glTexStorage2D(GL_TEXTURE_2D, 3, GL_RGBA8, 4, 4); glBindTexture(GL_TEXTURE_2D, textures[1]); glTexStorage2D(GL_TEXTURE_2D, 3, GL_RGBA8, 4, 4); GLFramebuffer framebuffers[2]; glBindFramebuffer(GL_READ_FRAMEBUFFER, framebuffers[0]); glBindFramebuffer(GL_DRAW_FRAMEBUFFER, framebuffers[1]); ASSERT_GL_NO_ERROR(); glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textures[0], 0); glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textures[1], 0); ASSERT_GL_NO_ERROR(); GLint width = 8; GLint height = 8; GLTexture tex0; glBindTexture(GL_TEXTURE_2D, tex0); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0); GLFramebuffer fb0; glBindFramebuffer(GL_READ_FRAMEBUFFER, fb0); glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, tex0, 0); GLTexture tex1; glBindTexture(GL_TEXTURE_2D, tex1); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0); GLFramebuffer fb1; glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fb1); glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, tex1, 0); GLint max = std::numeric_limits<GLint>::max(); // Using max 32-bit integer as blitFramebuffer parameter should succeed. glBlitFramebuffer(0, 0, max, max, 0, 0, width, height, GL_COLOR_BUFFER_BIT, GL_NEAREST); glBlitFramebuffer(0, 0, width, height, 0, 0, max, max, GL_COLOR_BUFFER_BIT, GL_NEAREST); glBlitFramebuffer(0, 0, max, max, 0, 0, max, max, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); // Using blitFramebuffer parameters where calculated width/height matches max 32-bit integer // should succeed glBlitFramebuffer(-1, -1, max - 1, max - 1, 0, 0, width, height, GL_COLOR_BUFFER_BIT, GL_NEAREST); glBlitFramebuffer(0, 0, width, height, -1, -1, max - 1, max - 1, GL_COLOR_BUFFER_BIT, GL_NEAREST); glBlitFramebuffer(-1, -1, max - 1, max - 1, -1, -1, max - 1, max - 1, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); // Using source width/height greater than max 32-bit integer should fail. glBlitFramebuffer(-1, -1, max, max, 0, 0, width, height, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_VALUE); // Using source width/height greater than max 32-bit integer should fail. glBlitFramebuffer(max, max, -1, -1, 0, 0, width, height, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_VALUE); // Using destination width/height greater than max 32-bit integer should fail. glBlitFramebuffer(0, 0, width, height, -1, -1, max, max, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_VALUE); // Using destination width/height greater than max 32-bit integer should fail. glBlitFramebuffer(0, 0, width, height, max, max, -1, -1, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_VALUE); // Using both source and destination width/height greater than max 32-bit integer should fail. glBlitFramebuffer(-1, -1, max, max, -1, -1, max, max, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_VALUE); // Using minimum and maximum integers for all boundaries should fail. glBlitFramebuffer(-max - 1, -max - 1, max, max, -max - 1, -max - 1, max, max, GL_COLOR_BUFFER_BIT, GL_NEAREST); EXPECT_GL_ERROR(GL_INVALID_VALUE); } // Use this to select which configurations (e.g. which renderer, which GLES major version) these // tests should be run against. ANGLE_INSTANTIATE_TEST(BlitFramebufferANGLETest, ES2_D3D9(), ES2_D3D11(), ES2_D3D11_PRESENT_PATH_FAST(), ES2_OPENGL(), ES3_OPENGL(), ES2_VULKAN(), ES3_VULKAN()); ANGLE_INSTANTIATE_TEST(BlitFramebufferTest, ES3_D3D11(), ES3_OPENGL(), ES3_VULKAN());