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kc3-lang/angle/src/tests/gl_tests/BlitFramebufferANGLETest.cpp
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Author :
Olli Etuaho
Date : 2018-04-27 16:59:36
Hash : d7b56642
Message : Fix blit rect calculations on D3D11 backend The D3D11 backend used to calculate the blit areas incorrectly when the source blit area provided via the API stretched outside the source framebuffer in all directions. This is now fixed and the code is also simplified. BUG=angleproject:2521 TEST=angle_end2end_tests Change-Id: I46d5de27464a8455b3956c0be598f75550ca1616 Reviewed-on: https://chromium-review.googlesource.com/1032787 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
- 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(256); setWindowHeight(256); setConfigRedBits(8); setConfigGreenBits(8); setConfigBlueBits(8); setConfigAlphaBits(8); setConfigDepthBits(24); setConfigStencilBits(8); mCheckerProgram = 0; mBlueProgram = 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; } virtual void SetUp() { ANGLETest::SetUp(); mCheckerProgram = CompileProgram(essl1_shaders::vs::Passthrough(), essl1_shaders::fs::Checkered()); mBlueProgram = CompileProgram(essl1_shaders::vs::Simple(), essl1_shaders::fs::Blue()); if (mCheckerProgram == 0 || mBlueProgram == 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 (extensionEnabled("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 (extensionEnabled("GL_ANGLE_framebuffer_multisample") && extensionEnabled("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 (extensionEnabled("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); } virtual void TearDown() { glDeleteProgram(mCheckerProgram); glDeleteProgram(mBlueProgram); 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 (extensionEnabled("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); } ANGLETest::TearDown(); } 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 (!extensionEnabled(extension)) { std::cout << "Test skipped because " << extension << " not supported." << std::endl; return false; } return true; } GLuint mCheckerProgram; GLuint mBlueProgram; 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) { 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) { 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) { 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) { 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) { 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) { 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, BlitWithDepth) { glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); glDepthMask(GL_TRUE); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); glEnable(GL_DEPTH_TEST); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.3f); 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(), 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 not draw, because it is behind the blitted one drawQuad(mBlueProgram, essl1_shaders::PositionAttrib(), 0.8f); glDisable(GL_DEPTH_TEST); 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, with depth buffer. TEST_P(BlitFramebufferANGLETest, ReverseBlitWithDepth) { glBindFramebuffer(GL_FRAMEBUFFER, mOriginalFBO); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); glEnable(GL_DEPTH_TEST); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.3f); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mUserFBO); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mOriginalFBO); glClearColor(1.0f, 1.0f, 1.0f, 1.0f); 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_DEPTH_BUFFER_BIT, GL_NEAREST); EXPECT_GL_NO_ERROR(); glBindFramebuffer(GL_FRAMEBUFFER, mUserFBO); // if blit is happening correctly, this quad will not draw, because it is behind the blitted one drawQuad(mBlueProgram, essl1_shaders::PositionAttrib(), 0.8f); glDisable(GL_DEPTH_TEST); 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 one region of the system fbo to another-- this should fail. TEST_P(BlitFramebufferANGLETest, BlitSameBufferOriginal) { 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) { 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) { 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) { 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) { 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) { // 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); glClear(GL_COLOR_BUFFER_BIT); // fill the stencil buffer with 0x1 glStencilFunc(GL_ALWAYS, 0x1, 0xFF); glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE); glEnable(GL_STENCIL_TEST); drawQuad(mCheckerProgram, essl1_shaders::PositionAttrib(), 0.3f); glBindFramebuffer(GL_DRAW_FRAMEBUFFER_ANGLE, mOriginalFBO); glBindFramebuffer(GL_READ_FRAMEBUFFER_ANGLE, mUserFBO); 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, 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); 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, 0, 255, 255); EXPECT_PIXEL_EQ( getWindowWidth() / 4, 3 * getWindowHeight() / 4, 0, 0, 255, 255); } // make sure that attempting to blit a partial depth buffer issues an error TEST_P(BlitFramebufferANGLETest, BlitPartialDepthStencil) { 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) { if (!extensionEnabled("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) { if (!checkExtension("GL_ANGLE_framebuffer_multisample")) return; if (!checkExtension("GL_OES_rgb8_rgba8")) return; multisampleTestHelper(mRGBAMultisampledFBO, mRGBAFBO); } TEST_P(BlitFramebufferANGLETest, MultisampledRGBAToBGRA) { 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) { 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) { 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) { 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) { 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) { 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); const std::string &fragment = "#version 300 es\n" "out mediump vec4 red;\n" "void main() {\n" " red = vec4(1.0, 0.0, 0.0, 1.0);\n" " gl_FragDepth = 0.5;\n" "}"; ANGLE_GL_PROGRAM(drawRed, essl3_shaders::vs::Simple(), fragment); 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); // Draw with 0.5f test and the test should pass. glEnable(GL_DEPTH_TEST); glDepthFunc(GL_EQUAL); 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. 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 blit/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(); } // 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 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, 0.0f, 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::black); EXPECT_PIXEL_COLOR_EQ(3 * kWidth / 4, kHeight / 4, GLColor::black); EXPECT_PIXEL_COLOR_EQ(3 * kWidth / 4, 3 * kHeight / 4, GLColor::black); EXPECT_PIXEL_COLOR_EQ(kWidth / 4, 3 * kHeight / 4, GLColor::black); } // 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); } // 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(EGL_EXPERIMENTAL_PRESENT_PATH_COPY_ANGLE), ES2_D3D11(EGL_EXPERIMENTAL_PRESENT_PATH_FAST_ANGLE), ES2_OPENGL(), ES3_OPENGL()); // We're specifically testing GL 4.4 and GL 4.3 since on versions earlier than 4.4 FramebufferGL // takes a different path for blitting SRGB textures. ANGLE_INSTANTIATE_TEST(BlitFramebufferTest, ES3_D3D11(), ES3_OPENGL(4, 4), ES3_OPENGL(4, 3));