| // |
| // 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. |
| // |
| // StateChangeTest: |
| // Specifically designed for an ANGLE implementation of GL, these tests validate that |
| // ANGLE's dirty bits systems don't get confused by certain sequences of state changes. |
| // |
| |
| #include "test_utils/ANGLETest.h" |
| #include "test_utils/gl_raii.h" |
| |
| using namespace angle; |
| |
| namespace |
| { |
| constexpr char kBasicVertexShader[] = |
| R"(attribute vec3 position; |
| void main() |
| { |
| gl_Position = vec4(position, 1); |
| })"; |
| |
| constexpr char kGreenFragmentShader[] = |
| R"(void main() |
| { |
| gl_FragColor = vec4(0, 1, 0, 1); |
| })"; |
| |
| class StateChangeTest : public ANGLETest |
| { |
| protected: |
| StateChangeTest() |
| { |
| setWindowWidth(64); |
| setWindowHeight(64); |
| setConfigRedBits(8); |
| setConfigGreenBits(8); |
| setConfigBlueBits(8); |
| setConfigAlphaBits(8); |
| |
| // Enable the no error extension to avoid syncing the FBO state on validation. |
| setNoErrorEnabled(true); |
| } |
| |
| void SetUp() override |
| { |
| ANGLETest::SetUp(); |
| |
| glGenFramebuffers(1, &mFramebuffer); |
| glGenTextures(2, mTextures.data()); |
| glGenRenderbuffers(1, &mRenderbuffer); |
| |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| void TearDown() override |
| { |
| if (mFramebuffer != 0) |
| { |
| glDeleteFramebuffers(1, &mFramebuffer); |
| mFramebuffer = 0; |
| } |
| |
| if (!mTextures.empty()) |
| { |
| glDeleteTextures(static_cast<GLsizei>(mTextures.size()), mTextures.data()); |
| mTextures.clear(); |
| } |
| |
| glDeleteRenderbuffers(1, &mRenderbuffer); |
| |
| ANGLETest::TearDown(); |
| } |
| |
| GLuint mFramebuffer = 0; |
| GLuint mRenderbuffer = 0; |
| std::vector<GLuint> mTextures = {0, 0}; |
| }; |
| |
| class StateChangeTestES3 : public StateChangeTest |
| { |
| protected: |
| StateChangeTestES3() {} |
| }; |
| |
| // Ensure that CopyTexImage2D syncs framebuffer changes. |
| TEST_P(StateChangeTest, CopyTexImage2DSync) |
| { |
| // TODO(geofflang): Fix on Linux AMD drivers (http://anglebug.com/1291) |
| ANGLE_SKIP_TEST_IF(IsAMD() && IsOpenGL()); |
| |
| glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); |
| |
| // Init first texture to red |
| glBindTexture(GL_TEXTURE_2D, mTextures[0]); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0); |
| glClearColor(1.0f, 0.0f, 0.0f, 1.0f); |
| glClear(GL_COLOR_BUFFER_BIT); |
| EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255); |
| |
| // Init second texture to green |
| glBindTexture(GL_TEXTURE_2D, mTextures[1]); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[1], 0); |
| glClearColor(0.0f, 1.0f, 0.0f, 1.0f); |
| glClear(GL_COLOR_BUFFER_BIT); |
| EXPECT_PIXEL_EQ(0, 0, 0, 255, 0, 255); |
| |
| // Copy in the red texture to the green one. |
| // CopyTexImage should sync the framebuffer attachment change. |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0); |
| glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 0, 0, 16, 16, 0); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[1], 0); |
| EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255); |
| |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| // Ensure that CopyTexSubImage2D syncs framebuffer changes. |
| TEST_P(StateChangeTest, CopyTexSubImage2DSync) |
| { |
| glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); |
| |
| // Init first texture to red |
| glBindTexture(GL_TEXTURE_2D, mTextures[0]); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0); |
| glClearColor(1.0f, 0.0f, 0.0f, 1.0f); |
| glClear(GL_COLOR_BUFFER_BIT); |
| EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255); |
| |
| // Init second texture to green |
| glBindTexture(GL_TEXTURE_2D, mTextures[1]); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[1], 0); |
| glClearColor(0.0f, 1.0f, 0.0f, 1.0f); |
| glClear(GL_COLOR_BUFFER_BIT); |
| EXPECT_PIXEL_EQ(0, 0, 0, 255, 0, 255); |
| |
| // Copy in the red texture to the green one. |
| // CopyTexImage should sync the framebuffer attachment change. |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0); |
| glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, 16, 16); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[1], 0); |
| EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255); |
| |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| // Test that Framebuffer completeness caching works when color attachments change. |
| TEST_P(StateChangeTest, FramebufferIncompleteColorAttachment) |
| { |
| glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); |
| glBindTexture(GL_TEXTURE_2D, mTextures[0]); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0); |
| EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| // Change the texture at color attachment 0 to be non-color-renderable. |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, 16, 16, 0, GL_ALPHA, GL_UNSIGNED_BYTE, nullptr); |
| EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT, |
| glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| // Test that caching works when color attachments change with TexStorage. |
| TEST_P(StateChangeTest, FramebufferIncompleteWithTexStorage) |
| { |
| ANGLE_SKIP_TEST_IF(!extensionEnabled("GL_EXT_texture_storage")); |
| |
| glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); |
| glBindTexture(GL_TEXTURE_2D, mTextures[0]); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0); |
| EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| // Change the texture at color attachment 0 to be non-color-renderable. |
| glTexStorage2DEXT(GL_TEXTURE_2D, 1, GL_ALPHA8_EXT, 16, 16); |
| EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT, |
| glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| // Test that caching works when color attachments change with CompressedTexImage2D. |
| TEST_P(StateChangeTestES3, FramebufferIncompleteWithCompressedTex) |
| { |
| glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); |
| glBindTexture(GL_TEXTURE_2D, mTextures[0]); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0); |
| EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| // Change the texture at color attachment 0 to be non-color-renderable. |
| glCompressedTexImage2D(GL_TEXTURE_2D, 0, GL_COMPRESSED_RGB8_ETC2, 16, 16, 0, 128, nullptr); |
| EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT, |
| glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| // Test that caching works when color attachments are deleted. |
| TEST_P(StateChangeTestES3, FramebufferIncompleteWhenAttachmentDeleted) |
| { |
| glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); |
| glBindTexture(GL_TEXTURE_2D, mTextures[0]); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0); |
| EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| // Delete the texture at color attachment 0. |
| glDeleteTextures(1, &mTextures[0]); |
| mTextures[0] = 0; |
| EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT, |
| glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| // Test that Framebuffer completeness caching works when depth attachments change. |
| TEST_P(StateChangeTest, FramebufferIncompleteDepthAttachment) |
| { |
| glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); |
| glBindTexture(GL_TEXTURE_2D, mTextures[0]); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0); |
| glBindRenderbuffer(GL_RENDERBUFFER, mRenderbuffer); |
| glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, 16, 16); |
| glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, mRenderbuffer); |
| EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| // Change the texture at color attachment 0 to be non-depth-renderable. |
| glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, 16, 16); |
| EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT, |
| glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| // Test that Framebuffer completeness caching works when stencil attachments change. |
| TEST_P(StateChangeTest, FramebufferIncompleteStencilAttachment) |
| { |
| glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); |
| glBindTexture(GL_TEXTURE_2D, mTextures[0]); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0); |
| glBindRenderbuffer(GL_RENDERBUFFER, mRenderbuffer); |
| glRenderbufferStorage(GL_RENDERBUFFER, GL_STENCIL_INDEX8, 16, 16); |
| glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, |
| mRenderbuffer); |
| EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| // Change the texture at the stencil attachment to be non-stencil-renderable. |
| glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, 16, 16); |
| EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT, |
| glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| // Test that Framebuffer completeness caching works when depth-stencil attachments change. |
| TEST_P(StateChangeTest, FramebufferIncompleteDepthStencilAttachment) |
| { |
| ANGLE_SKIP_TEST_IF(getClientMajorVersion() < 3 && |
| !extensionEnabled("GL_OES_packed_depth_stencil")); |
| |
| // TODO(jmadill): Investigate the failure (https://anglebug.com/1388) |
| ANGLE_SKIP_TEST_IF(IsWindows() && IsIntel() && IsOpenGL()); |
| |
| glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); |
| glBindTexture(GL_TEXTURE_2D, mTextures[0]); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0); |
| glBindRenderbuffer(GL_RENDERBUFFER, mRenderbuffer); |
| glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, 16, 16); |
| glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, |
| mRenderbuffer); |
| EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| // Change the texture the depth-stencil attachment to be non-depth-stencil-renderable. |
| glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, 16, 16); |
| EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT, |
| glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| const char kSimpleAttributeVS[] = R"(attribute vec2 position; |
| attribute vec4 testAttrib; |
| varying vec4 testVarying; |
| void main() |
| { |
| gl_Position = vec4(position, 0, 1); |
| testVarying = testAttrib; |
| })"; |
| |
| const char kSimpleAttributeFS[] = R"(precision mediump float; |
| varying vec4 testVarying; |
| void main() |
| { |
| gl_FragColor = testVarying; |
| })"; |
| |
| // Tests that using a buffered attribute, then disabling it and using current value, works. |
| TEST_P(StateChangeTest, DisablingBufferedVertexAttribute) |
| { |
| ANGLE_GL_PROGRAM(program, kSimpleAttributeVS, kSimpleAttributeFS); |
| glUseProgram(program); |
| GLint attribLoc = glGetAttribLocation(program, "testAttrib"); |
| GLint positionLoc = glGetAttribLocation(program, "position"); |
| ASSERT_NE(-1, attribLoc); |
| ASSERT_NE(-1, positionLoc); |
| |
| // Set up the buffered attribute. |
| std::vector<GLColor> red(6, GLColor::red); |
| GLBuffer attribBuffer; |
| glBindBuffer(GL_ARRAY_BUFFER, attribBuffer); |
| glBufferData(GL_ARRAY_BUFFER, red.size() * sizeof(GLColor), red.data(), GL_STATIC_DRAW); |
| glEnableVertexAttribArray(attribLoc); |
| glVertexAttribPointer(attribLoc, 4, GL_UNSIGNED_BYTE, GL_TRUE, 0, nullptr); |
| |
| // Also set the current value to green now. |
| glVertexAttrib4f(attribLoc, 0.0f, 1.0f, 0.0f, 1.0f); |
| |
| // Set up the position attribute as well. |
| setupQuadVertexBuffer(0.5f, 1.0f); |
| glEnableVertexAttribArray(positionLoc); |
| glVertexAttribPointer(positionLoc, 3, GL_FLOAT, GL_FALSE, 0, nullptr); |
| |
| // Draw with the buffered attribute. Verify red. |
| glDrawArrays(GL_TRIANGLES, 0, 6); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red); |
| |
| // Draw with the disabled "current value attribute". Verify green. |
| glDisableVertexAttribArray(attribLoc); |
| glDrawArrays(GL_TRIANGLES, 0, 6); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green); |
| |
| // Verify setting buffer data on the disabled buffer doesn't change anything. |
| std::vector<GLColor> blue(128, GLColor::blue); |
| glBindBuffer(GL_ARRAY_BUFFER, attribBuffer); |
| glBufferData(GL_ARRAY_BUFFER, blue.size() * sizeof(GLColor), blue.data(), GL_STATIC_DRAW); |
| glDrawArrays(GL_TRIANGLES, 0, 6); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green); |
| } |
| |
| // Ensure that CopyTexSubImage3D syncs framebuffer changes. |
| TEST_P(StateChangeTestES3, CopyTexSubImage3DSync) |
| { |
| glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); |
| |
| // Init first texture to red |
| glBindTexture(GL_TEXTURE_3D, mTextures[0]); |
| glTexImage3D(GL_TEXTURE_3D, 0, GL_RGBA, 16, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, mTextures[0], 0, 0); |
| glClearColor(1.0f, 0.0f, 0.0f, 1.0f); |
| glClear(GL_COLOR_BUFFER_BIT); |
| EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255); |
| |
| // Init second texture to green |
| glBindTexture(GL_TEXTURE_3D, mTextures[1]); |
| glTexImage3D(GL_TEXTURE_3D, 0, GL_RGBA, 16, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, mTextures[1], 0, 0); |
| glClearColor(0.0f, 1.0f, 0.0f, 1.0f); |
| glClear(GL_COLOR_BUFFER_BIT); |
| EXPECT_PIXEL_EQ(0, 0, 0, 255, 0, 255); |
| |
| // Copy in the red texture to the green one. |
| // CopyTexImage should sync the framebuffer attachment change. |
| glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, mTextures[0], 0, 0); |
| glCopyTexSubImage3D(GL_TEXTURE_3D, 0, 0, 0, 0, 0, 0, 16, 16); |
| glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, mTextures[1], 0, 0); |
| EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255); |
| |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| // Ensure that BlitFramebuffer syncs framebuffer changes. |
| TEST_P(StateChangeTestES3, BlitFramebufferSync) |
| { |
| glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); |
| |
| // Init first texture to red |
| glBindTexture(GL_TEXTURE_2D, mTextures[0]); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0); |
| glClearColor(1.0f, 0.0f, 0.0f, 1.0f); |
| glClear(GL_COLOR_BUFFER_BIT); |
| EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255); |
| |
| // Init second texture to green |
| glBindTexture(GL_TEXTURE_2D, mTextures[1]); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[1], 0); |
| glClearColor(0.0f, 1.0f, 0.0f, 1.0f); |
| glClear(GL_COLOR_BUFFER_BIT); |
| EXPECT_PIXEL_EQ(0, 0, 0, 255, 0, 255); |
| |
| // Change to the red textures and blit. |
| // BlitFramebuffer should sync the framebuffer attachment change. |
| glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0); |
| glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], |
| 0); |
| glBlitFramebuffer(0, 0, 16, 16, 0, 0, 16, 16, GL_COLOR_BUFFER_BIT, GL_NEAREST); |
| glBindFramebuffer(GL_READ_FRAMEBUFFER, 0); |
| EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255); |
| |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| // Ensure that ReadBuffer and DrawBuffers sync framebuffer changes. |
| TEST_P(StateChangeTestES3, ReadBufferAndDrawBuffersSync) |
| { |
| glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); |
| |
| // Initialize two FBO attachments |
| glBindTexture(GL_TEXTURE_2D, mTextures[0]); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0); |
| glBindTexture(GL_TEXTURE_2D, mTextures[1]); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, GL_TEXTURE_2D, mTextures[1], 0); |
| |
| // Clear first attachment to red |
| GLenum bufs1[] = {GL_COLOR_ATTACHMENT0, GL_NONE}; |
| glDrawBuffers(2, bufs1); |
| glClearColor(1.0f, 0.0f, 0.0f, 1.0f); |
| glClear(GL_COLOR_BUFFER_BIT); |
| |
| // Clear second texture to green |
| GLenum bufs2[] = {GL_NONE, GL_COLOR_ATTACHMENT1}; |
| glDrawBuffers(2, bufs2); |
| glClearColor(0.0f, 1.0f, 0.0f, 1.0f); |
| glClear(GL_COLOR_BUFFER_BIT); |
| |
| // Verify first attachment is red and second is green |
| glReadBuffer(GL_COLOR_ATTACHMENT1); |
| EXPECT_PIXEL_EQ(0, 0, 0, 255, 0, 255); |
| |
| glReadBuffer(GL_COLOR_ATTACHMENT0); |
| EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255); |
| |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| // Tests calling invalidate on incomplete framebuffers after switching attachments. |
| // Adapted partially from WebGL 2 test "renderbuffers/invalidate-framebuffer" |
| TEST_P(StateChangeTestES3, IncompleteRenderbufferAttachmentInvalidateSync) |
| { |
| glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); |
| glBindRenderbuffer(GL_RENDERBUFFER, mRenderbuffer); |
| GLint samples = 0; |
| glGetInternalformativ(GL_RENDERBUFFER, GL_RGBA8, GL_SAMPLES, 1, &samples); |
| glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, mRenderbuffer); |
| ASSERT_GL_NO_ERROR(); |
| |
| // invalidate the framebuffer when the attachment is incomplete: no storage allocated to the |
| // attached renderbuffer |
| EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT, |
| glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| GLenum attachments1[] = {GL_COLOR_ATTACHMENT0}; |
| glInvalidateFramebuffer(GL_FRAMEBUFFER, 1, attachments1); |
| ASSERT_GL_NO_ERROR(); |
| |
| glRenderbufferStorageMultisample(GL_RENDERBUFFER, static_cast<GLsizei>(samples), GL_RGBA8, |
| getWindowWidth(), getWindowHeight()); |
| EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| glClear(GL_COLOR_BUFFER_BIT); |
| ASSERT_GL_NO_ERROR(); |
| |
| GLRenderbuffer renderbuf; |
| |
| glBindRenderbuffer(GL_RENDERBUFFER, renderbuf.get()); |
| glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, |
| renderbuf.get()); |
| ASSERT_GL_NO_ERROR(); |
| |
| // invalidate the framebuffer when the attachment is incomplete: no storage allocated to the |
| // attached renderbuffer |
| // Note: the bug will only repro *without* a call to checkStatus before the invalidate. |
| GLenum attachments2[] = {GL_DEPTH_ATTACHMENT}; |
| glInvalidateFramebuffer(GL_FRAMEBUFFER, 1, attachments2); |
| |
| glRenderbufferStorageMultisample(GL_RENDERBUFFER, static_cast<GLsizei>(samples), |
| GL_DEPTH_COMPONENT16, getWindowWidth(), getWindowHeight()); |
| EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| glClear(GL_DEPTH_BUFFER_BIT); |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| class StateChangeRenderTest : public StateChangeTest |
| { |
| protected: |
| StateChangeRenderTest() : mProgram(0), mRenderbuffer(0) {} |
| |
| void SetUp() override |
| { |
| StateChangeTest::SetUp(); |
| |
| const std::string vertexShaderSource = |
| "attribute vec2 position;\n" |
| "void main() {\n" |
| " gl_Position = vec4(position, 0, 1);\n" |
| "}"; |
| const std::string fragmentShaderSource = |
| "uniform highp vec4 uniformColor;\n" |
| "void main() {\n" |
| " gl_FragColor = uniformColor;\n" |
| "}"; |
| |
| mProgram = CompileProgram(vertexShaderSource, fragmentShaderSource); |
| ASSERT_NE(0u, mProgram); |
| |
| glGenRenderbuffers(1, &mRenderbuffer); |
| } |
| |
| void TearDown() override |
| { |
| glDeleteProgram(mProgram); |
| glDeleteRenderbuffers(1, &mRenderbuffer); |
| |
| StateChangeTest::TearDown(); |
| } |
| |
| void setUniformColor(const GLColor &color) |
| { |
| glUseProgram(mProgram); |
| const Vector4 &normalizedColor = color.toNormalizedVector(); |
| GLint uniformLocation = glGetUniformLocation(mProgram, "uniformColor"); |
| ASSERT_NE(-1, uniformLocation); |
| glUniform4fv(uniformLocation, 1, normalizedColor.data()); |
| } |
| |
| GLuint mProgram; |
| GLuint mRenderbuffer; |
| }; |
| |
| // Test that re-creating a currently attached texture works as expected. |
| TEST_P(StateChangeRenderTest, RecreateTexture) |
| { |
| glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); |
| |
| glBindTexture(GL_TEXTURE_2D, mTextures[0]); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0); |
| |
| // Explictly check FBO status sync in some versions of ANGLE no_error skips FBO checks. |
| ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| // Draw with red to the FBO. |
| GLColor red(255, 0, 0, 255); |
| setUniformColor(red); |
| drawQuad(mProgram, "position", 0.5f); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, red); |
| |
| // Recreate the texture with green. |
| GLColor green(0, 255, 0, 255); |
| std::vector<GLColor> greenPixels(32 * 32, green); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, |
| greenPixels.data()); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, green); |
| |
| // Explictly check FBO status sync in some versions of ANGLE no_error skips FBO checks. |
| ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| // Verify drawing blue gives blue. This covers the FBO sync with D3D dirty bits. |
| GLColor blue(0, 0, 255, 255); |
| setUniformColor(blue); |
| drawQuad(mProgram, "position", 0.5f); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, blue); |
| |
| EXPECT_GL_NO_ERROR(); |
| } |
| |
| // Test that re-creating a currently attached renderbuffer works as expected. |
| TEST_P(StateChangeRenderTest, RecreateRenderbuffer) |
| { |
| glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); |
| |
| glBindRenderbuffer(GL_RENDERBUFFER, mRenderbuffer); |
| glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, 16, 16); |
| glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, mRenderbuffer); |
| |
| // Explictly check FBO status sync in some versions of ANGLE no_error skips FBO checks. |
| ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| // Draw with red to the FBO. |
| GLColor red(255, 0, 0, 255); |
| setUniformColor(red); |
| drawQuad(mProgram, "position", 0.5f); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, red); |
| |
| // Recreate the renderbuffer and clear to green. |
| glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, 32, 32); |
| glClearColor(0.0f, 1.0f, 0.0f, 1.0f); |
| glClear(GL_COLOR_BUFFER_BIT); |
| GLColor green(0, 255, 0, 255); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, green); |
| |
| // Explictly check FBO status sync in some versions of ANGLE no_error skips FBO checks. |
| ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| // Verify drawing blue gives blue. This covers the FBO sync with D3D dirty bits. |
| GLColor blue(0, 0, 255, 255); |
| setUniformColor(blue); |
| drawQuad(mProgram, "position", 0.5f); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, blue); |
| |
| EXPECT_GL_NO_ERROR(); |
| } |
| |
| // Test that recreating a texture with GenerateMipmaps signals the FBO is dirty. |
| TEST_P(StateChangeRenderTest, GenerateMipmap) |
| { |
| glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); |
| |
| glBindTexture(GL_TEXTURE_2D, mTextures[0]); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glTexImage2D(GL_TEXTURE_2D, 1, GL_RGBA, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glTexImage2D(GL_TEXTURE_2D, 2, GL_RGBA, 4, 4, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0); |
| |
| // Explictly check FBO status sync in some versions of ANGLE no_error skips FBO checks. |
| ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| // Draw once to set the RenderTarget in D3D11 |
| GLColor red(255, 0, 0, 255); |
| setUniformColor(red); |
| drawQuad(mProgram, "position", 0.5f); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, red); |
| |
| // This will trigger the texture to be re-created on FL9_3. |
| glGenerateMipmap(GL_TEXTURE_2D); |
| |
| // Explictly check FBO status sync in some versions of ANGLE no_error skips FBO checks. |
| ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| // Now ensure we don't have a stale render target. |
| GLColor blue(0, 0, 255, 255); |
| setUniformColor(blue); |
| drawQuad(mProgram, "position", 0.5f); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, blue); |
| |
| EXPECT_GL_NO_ERROR(); |
| } |
| |
| // Tests that D3D11 dirty bit updates don't forget about BufferSubData attrib updates. |
| TEST_P(StateChangeTest, VertexBufferUpdatedAfterDraw) |
| { |
| const std::string vs = |
| "attribute vec2 position;\n" |
| "attribute vec4 color;\n" |
| "varying vec4 outcolor;\n" |
| "void main()\n" |
| "{\n" |
| " gl_Position = vec4(position, 0, 1);\n" |
| " outcolor = color;\n" |
| "}"; |
| const std::string fs = |
| "varying mediump vec4 outcolor;\n" |
| "void main()\n" |
| "{\n" |
| " gl_FragColor = outcolor;\n" |
| "}"; |
| |
| ANGLE_GL_PROGRAM(program, vs, fs); |
| glUseProgram(program); |
| |
| GLint colorLoc = glGetAttribLocation(program, "color"); |
| ASSERT_NE(-1, colorLoc); |
| GLint positionLoc = glGetAttribLocation(program, "position"); |
| ASSERT_NE(-1, positionLoc); |
| |
| setupQuadVertexBuffer(0.5f, 1.0f); |
| glEnableVertexAttribArray(positionLoc); |
| glVertexAttribPointer(positionLoc, 3, GL_FLOAT, GL_FALSE, 0, nullptr); |
| |
| GLBuffer colorBuf; |
| glBindBuffer(GL_ARRAY_BUFFER, colorBuf); |
| glVertexAttribPointer(colorLoc, 4, GL_UNSIGNED_BYTE, GL_TRUE, 0, nullptr); |
| glEnableVertexAttribArray(colorLoc); |
| |
| // Fill with green. |
| std::vector<GLColor> colorData(6, GLColor::green); |
| glBufferData(GL_ARRAY_BUFFER, colorData.size() * sizeof(GLColor), colorData.data(), |
| GL_STATIC_DRAW); |
| |
| // Draw, expect green. |
| glDrawArrays(GL_TRIANGLES, 0, 6); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green); |
| ASSERT_GL_NO_ERROR(); |
| |
| // Update buffer with red. |
| std::fill(colorData.begin(), colorData.end(), GLColor::red); |
| glBufferSubData(GL_ARRAY_BUFFER, 0, colorData.size() * sizeof(GLColor), colorData.data()); |
| |
| // Draw, expect red. |
| glDrawArrays(GL_TRIANGLES, 0, 6); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red); |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| // Test that switching VAOs keeps the disabled "current value" attributes up-to-date. |
| TEST_P(StateChangeTestES3, VertexArrayObjectAndDisabledAttributes) |
| { |
| const std::string singleVertexShader = |
| "attribute vec4 position; void main() { gl_Position = position; }"; |
| const std::string singleFragmentShader = "void main() { gl_FragColor = vec4(1, 0, 0, 1); }"; |
| ANGLE_GL_PROGRAM(singleProgram, singleVertexShader, singleFragmentShader); |
| |
| const std::string dualVertexShader = |
| "#version 300 es\n" |
| "in vec4 position;\n" |
| "in vec4 color;\n" |
| "out vec4 varyColor;\n" |
| "void main()\n" |
| "{\n" |
| " gl_Position = position;\n" |
| " varyColor = color;\n" |
| "}"; |
| const std::string dualFragmentShader = |
| "#version 300 es\n" |
| "precision mediump float;\n" |
| "in vec4 varyColor;\n" |
| "out vec4 colorOut;\n" |
| "void main()\n" |
| "{\n" |
| " colorOut = varyColor;\n" |
| "}"; |
| ANGLE_GL_PROGRAM(dualProgram, dualVertexShader, dualFragmentShader); |
| GLint positionLocation = glGetAttribLocation(dualProgram, "position"); |
| ASSERT_NE(-1, positionLocation); |
| GLint colorLocation = glGetAttribLocation(dualProgram, "color"); |
| ASSERT_NE(-1, colorLocation); |
| |
| GLint singlePositionLocation = glGetAttribLocation(singleProgram, "position"); |
| ASSERT_NE(-1, singlePositionLocation); |
| |
| glUseProgram(singleProgram); |
| |
| // Initialize position vertex buffer. |
| const auto &quadVertices = GetQuadVertices(); |
| |
| GLBuffer vertexBuffer; |
| glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer); |
| glBufferData(GL_ARRAY_BUFFER, sizeof(Vector3) * 6, quadVertices.data(), GL_STATIC_DRAW); |
| |
| // Initialize a VAO. Draw with single program. |
| GLVertexArray vertexArray; |
| glBindVertexArray(vertexArray); |
| glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer); |
| glVertexAttribPointer(singlePositionLocation, 3, GL_FLOAT, GL_FALSE, 0, nullptr); |
| glEnableVertexAttribArray(singlePositionLocation); |
| |
| // Should draw red. |
| glDrawArrays(GL_TRIANGLES, 0, 6); |
| ASSERT_GL_NO_ERROR(); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red); |
| |
| // Draw with a green buffer attribute, without the VAO. |
| glBindVertexArray(0); |
| glUseProgram(dualProgram); |
| glVertexAttribPointer(positionLocation, 3, GL_FLOAT, GL_FALSE, 0, nullptr); |
| glEnableVertexAttribArray(positionLocation); |
| |
| std::vector<GLColor> greenColors(6, GLColor::green); |
| GLBuffer greenBuffer; |
| glBindBuffer(GL_ARRAY_BUFFER, greenBuffer); |
| glBufferData(GL_ARRAY_BUFFER, sizeof(GLColor) * 6, greenColors.data(), GL_STATIC_DRAW); |
| |
| glVertexAttribPointer(colorLocation, 4, GL_UNSIGNED_BYTE, GL_FALSE, 4, nullptr); |
| glEnableVertexAttribArray(colorLocation); |
| |
| glDrawArrays(GL_TRIANGLES, 0, 6); |
| ASSERT_GL_NO_ERROR(); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green); |
| |
| // Re-bind VAO and try to draw with different program, without changing state. |
| // Should draw black since current value is not initialized. |
| glBindVertexArray(vertexArray); |
| glDrawArrays(GL_TRIANGLES, 0, 6); |
| ASSERT_GL_NO_ERROR(); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::black); |
| } |
| |
| const char kSamplerMetadataVertexShader0[] = R"(#version 300 es |
| precision mediump float; |
| out vec4 color; |
| uniform sampler2D texture; |
| void main() |
| { |
| vec2 size = vec2(textureSize(texture, 0)); |
| color = size.x != 0.0 ? vec4(0.0, 1.0, 0.0, 1.0) : vec4(1.0, 0.0, 0.0, 0.0); |
| vec2 pos = vec2(0.0); |
| switch (gl_VertexID) { |
| case 0: pos = vec2(-1.0, -1.0); break; |
| case 1: pos = vec2(3.0, -1.0); break; |
| case 2: pos = vec2(-1.0, 3.0); break; |
| }; |
| gl_Position = vec4(pos, 0.0, 1.0); |
| })"; |
| |
| const char kSamplerMetadataVertexShader1[] = R"(#version 300 es |
| precision mediump float; |
| out vec4 color; |
| uniform sampler2D texture1; |
| uniform sampler2D texture2; |
| void main() |
| { |
| vec2 size1 = vec2(textureSize(texture1, 0)); |
| vec2 size2 = vec2(textureSize(texture2, 0)); |
| color = size1.x * size2.x != 0.0 ? vec4(0.0, 1.0, 0.0, 1.0) : vec4(1.0, 0.0, 0.0, 0.0); |
| vec2 pos = vec2(0.0); |
| switch (gl_VertexID) { |
| case 0: pos = vec2(-1.0, -1.0); break; |
| case 1: pos = vec2(3.0, -1.0); break; |
| case 2: pos = vec2(-1.0, 3.0); break; |
| }; |
| gl_Position = vec4(pos, 0.0, 1.0); |
| })"; |
| |
| const char kSamplerMetadataFragmentShader[] = R"(#version 300 es |
| precision mediump float; |
| in vec4 color; |
| out vec4 result; |
| void main() |
| { |
| result = color; |
| })"; |
| |
| // Tests that changing an active program invalidates the sampler metadata properly. |
| TEST_P(StateChangeTestES3, SamplerMetadataUpdateOnSetProgram) |
| { |
| GLVertexArray vertexArray; |
| glBindVertexArray(vertexArray); |
| |
| // Create a simple framebuffer. |
| GLTexture texture1, texture2; |
| glActiveTexture(GL_TEXTURE0); |
| glBindTexture(GL_TEXTURE_2D, texture1); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glActiveTexture(GL_TEXTURE1); |
| glBindTexture(GL_TEXTURE_2D, texture2); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 3, 3, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| |
| // Create 2 shader programs differing only in the number of active samplers. |
| ANGLE_GL_PROGRAM(program1, kSamplerMetadataVertexShader0, kSamplerMetadataFragmentShader); |
| glUseProgram(program1); |
| glUniform1i(glGetUniformLocation(program1, "texture"), 0); |
| ANGLE_GL_PROGRAM(program2, kSamplerMetadataVertexShader1, kSamplerMetadataFragmentShader); |
| glUseProgram(program2); |
| glUniform1i(glGetUniformLocation(program2, "texture1"), 0); |
| glUniform1i(glGetUniformLocation(program2, "texture2"), 0); |
| |
| // Draw a solid green color to the framebuffer. |
| glUseProgram(program1); |
| glDrawArrays(GL_TRIANGLES, 0, 3); |
| // Test that our first program is good. |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green); |
| |
| // Bind a different program that uses more samplers. |
| // Draw another quad that depends on the sampler metadata. |
| glUseProgram(program2); |
| glDrawArrays(GL_TRIANGLES, 0, 3); |
| // Flush via ReadPixels and check that it's still green. |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green); |
| |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| // Tests that redefining Buffer storage syncs with the Transform Feedback object. |
| TEST_P(StateChangeTestES3, RedefineTransformFeedbackBuffer) |
| { |
| // Create the most simple program possible - simple a passthrough for a float attribute. |
| constexpr char kVertexShader[] = R"(#version 300 es |
| in float valueIn; |
| out float valueOut; |
| void main() |
| { |
| gl_Position = vec4(0, 0, 0, 0); |
| valueOut = valueIn; |
| })"; |
| |
| constexpr char kFragmentShader[] = R"(#version 300 es |
| out mediump float dummy; |
| void main() |
| { |
| dummy = 1.0; |
| })"; |
| |
| std::vector<std::string> tfVaryings = {"valueOut"}; |
| ANGLE_GL_PROGRAM_TRANSFORM_FEEDBACK(program, kVertexShader, kFragmentShader, tfVaryings, |
| GL_SEPARATE_ATTRIBS); |
| glUseProgram(program); |
| |
| GLint attribLoc = glGetAttribLocation(program, "valueIn"); |
| ASSERT_NE(-1, attribLoc); |
| |
| // Disable rasterization - we're not interested in the framebuffer. |
| glEnable(GL_RASTERIZER_DISCARD); |
| |
| // Initialize a float vertex buffer with 1.0. |
| std::vector<GLfloat> data1(16, 1.0); |
| GLsizei size1 = static_cast<GLsizei>(sizeof(GLfloat) * data1.size()); |
| |
| GLBuffer vertexBuffer; |
| glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer); |
| glBufferData(GL_ARRAY_BUFFER, size1, data1.data(), GL_STATIC_DRAW); |
| glVertexAttribPointer(attribLoc, 1, GL_FLOAT, GL_FALSE, 0, nullptr); |
| glEnableVertexAttribArray(attribLoc); |
| |
| ASSERT_GL_NO_ERROR(); |
| |
| // Initialize a same-sized XFB buffer. |
| GLBuffer xfbBuffer; |
| glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, xfbBuffer); |
| glBufferData(GL_TRANSFORM_FEEDBACK_BUFFER, size1, nullptr, GL_STATIC_DRAW); |
| |
| // Draw with XFB enabled. |
| GLTransformFeedback xfb; |
| glBindTransformFeedback(GL_TRANSFORM_FEEDBACK, xfb); |
| glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, 0, xfbBuffer); |
| |
| glBeginTransformFeedback(GL_POINTS); |
| glDrawArrays(GL_POINTS, 0, 16); |
| glEndTransformFeedback(); |
| |
| ASSERT_GL_NO_ERROR(); |
| |
| // Verify the XFB stage caught the 1.0 attribute values. |
| void *mapped1 = glMapBufferRange(GL_TRANSFORM_FEEDBACK_BUFFER, 0, size1, GL_MAP_READ_BIT); |
| GLfloat *asFloat1 = reinterpret_cast<GLfloat *>(mapped1); |
| std::vector<GLfloat> actualData1(asFloat1, asFloat1 + data1.size()); |
| EXPECT_EQ(data1, actualData1); |
| glUnmapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER); |
| |
| // Now, reinitialize the XFB buffer to a larger size, and draw with 2.0. |
| std::vector<GLfloat> data2(128, 2.0); |
| const GLsizei size2 = static_cast<GLsizei>(sizeof(GLfloat) * data2.size()); |
| glBufferData(GL_ARRAY_BUFFER, size2, data2.data(), GL_STATIC_DRAW); |
| glBufferData(GL_TRANSFORM_FEEDBACK_BUFFER, size2, nullptr, GL_STATIC_DRAW); |
| |
| glBeginTransformFeedback(GL_POINTS); |
| glDrawArrays(GL_POINTS, 0, 128); |
| glEndTransformFeedback(); |
| |
| ASSERT_GL_NO_ERROR(); |
| |
| // Verify the XFB stage caught the 2.0 attribute values. |
| void *mapped2 = glMapBufferRange(GL_TRANSFORM_FEEDBACK_BUFFER, 0, size2, GL_MAP_READ_BIT); |
| GLfloat *asFloat2 = reinterpret_cast<GLfloat *>(mapped2); |
| std::vector<GLfloat> actualData2(asFloat2, asFloat2 + data2.size()); |
| EXPECT_EQ(data2, actualData2); |
| glUnmapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER); |
| } |
| |
| // Simple state change tests for line loop drawing. There is some very specific handling of line |
| // line loops in Vulkan and we need to test switching between drawElements and drawArrays calls to |
| // validate every edge cases. |
| class LineLoopStateChangeTest : public StateChangeTest |
| { |
| protected: |
| LineLoopStateChangeTest() |
| { |
| setWindowWidth(32); |
| setWindowHeight(32); |
| setConfigRedBits(8); |
| setConfigGreenBits(8); |
| setConfigBlueBits(8); |
| setConfigAlphaBits(8); |
| } |
| |
| void validateSquareAndHourglass() |
| { |
| ASSERT_GL_NO_ERROR(); |
| |
| int quarterWidth = getWindowWidth() / 4; |
| int quarterHeight = getWindowHeight() / 4; |
| |
| // Bottom left |
| EXPECT_PIXEL_COLOR_EQ(quarterWidth, quarterHeight, GLColor::green); |
| |
| // Top left |
| EXPECT_PIXEL_COLOR_EQ(quarterWidth, (quarterHeight * 3), GLColor::green); |
| |
| // Top right |
| // The last pixel isn't filled on a line loop so we check the pixel right before. |
| EXPECT_PIXEL_COLOR_EQ((quarterWidth * 3), (quarterHeight * 3) - 1, GLColor::green); |
| |
| // dead center to validate the hourglass. |
| EXPECT_PIXEL_COLOR_EQ((quarterWidth * 2), quarterHeight * 2, GLColor::green); |
| |
| // Verify line is closed between the 2 last vertices |
| EXPECT_PIXEL_COLOR_EQ((quarterWidth * 2), quarterHeight, GLColor::green); |
| } |
| |
| GLint mPositionLocation; |
| }; |
| |
| // Draw an hourglass with a drawElements call followed by a square with drawArrays. |
| TEST_P(LineLoopStateChangeTest, DrawElementsThenDrawArrays) |
| { |
| ANGLE_GL_PROGRAM(program, kBasicVertexShader, kGreenFragmentShader); |
| glUseProgram(program); |
| |
| // We expect to draw a square with these 4 vertices with a drawArray call. |
| std::vector<Vector3> vertices; |
| CreatePixelCenterWindowCoords({{8, 8}, {8, 24}, {24, 8}, {24, 24}}, getWindowWidth(), |
| getWindowHeight(), &vertices); |
| |
| // If we use these indices to draw however, we should be drawing an hourglass. |
| auto indices = std::vector<GLushort>{0, 2, 1, 3}; |
| |
| mPositionLocation = glGetAttribLocation(program, "position"); |
| ASSERT_NE(-1, mPositionLocation); |
| |
| GLBuffer vertexBuffer; |
| glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer); |
| glBufferData(GL_ARRAY_BUFFER, sizeof(vertices[0]) * vertices.size(), vertices.data(), |
| GL_STATIC_DRAW); |
| |
| GLBuffer indexBuffer; |
| glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuffer); |
| glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices.size() * sizeof(GLushort), &indices[0], |
| GL_STATIC_DRAW); |
| |
| glVertexAttribPointer(mPositionLocation, 3, GL_FLOAT, GL_FALSE, 0, nullptr); |
| glEnableVertexAttribArray(mPositionLocation); |
| glClear(GL_COLOR_BUFFER_BIT); |
| glDrawElements(GL_LINE_LOOP, 4, GL_UNSIGNED_SHORT, nullptr); // hourglass |
| glDrawArrays(GL_LINE_LOOP, 0, 4); // square |
| glDisableVertexAttribArray(mPositionLocation); |
| |
| validateSquareAndHourglass(); |
| } |
| |
| // Draw line loop using a drawArrays followed by an hourglass with drawElements. |
| TEST_P(LineLoopStateChangeTest, DrawArraysThenDrawElements) |
| { |
| ANGLE_GL_PROGRAM(program, kBasicVertexShader, kGreenFragmentShader); |
| glUseProgram(program); |
| |
| // We expect to draw a square with these 4 vertices with a drawArray call. |
| std::vector<Vector3> vertices; |
| CreatePixelCenterWindowCoords({{8, 8}, {8, 24}, {24, 8}, {24, 24}}, getWindowWidth(), |
| getWindowHeight(), &vertices); |
| |
| // If we use these indices to draw however, we should be drawing an hourglass. |
| auto indices = std::vector<GLushort>{0, 2, 1, 3}; |
| |
| mPositionLocation = glGetAttribLocation(program, "position"); |
| ASSERT_NE(-1, mPositionLocation); |
| |
| GLBuffer vertexBuffer; |
| glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer); |
| glBufferData(GL_ARRAY_BUFFER, sizeof(vertices[0]) * vertices.size(), vertices.data(), |
| GL_STATIC_DRAW); |
| |
| GLBuffer indexBuffer; |
| glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuffer); |
| glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices.size() * sizeof(GLushort), &indices[0], |
| GL_STATIC_DRAW); |
| |
| glVertexAttribPointer(mPositionLocation, 3, GL_FLOAT, GL_FALSE, 0, nullptr); |
| glEnableVertexAttribArray(mPositionLocation); |
| glClear(GL_COLOR_BUFFER_BIT); |
| glDrawArrays(GL_LINE_LOOP, 0, 4); // square |
| glDrawElements(GL_LINE_LOOP, 4, GL_UNSIGNED_SHORT, nullptr); // hourglass |
| glDisableVertexAttribArray(mPositionLocation); |
| |
| validateSquareAndHourglass(); |
| } |
| |
| // Simple state change tests, primarily focused on basic object lifetime and dependency management |
| // with back-ends that don't support that automatically (i.e. Vulkan). |
| class SimpleStateChangeTest : public ANGLETest |
| { |
| protected: |
| SimpleStateChangeTest() |
| { |
| setWindowWidth(64); |
| setWindowHeight(64); |
| setConfigRedBits(8); |
| setConfigGreenBits(8); |
| setConfigBlueBits(8); |
| setConfigAlphaBits(8); |
| } |
| |
| void simpleDrawWithBuffer(GLBuffer *buffer); |
| void simpleDrawWithColor(const GLColor &color); |
| }; |
| |
| constexpr char kSimpleVertexShader[] = R"(attribute vec2 position; |
| attribute vec4 color; |
| varying vec4 vColor; |
| void main() |
| { |
| gl_Position = vec4(position, 0, 1); |
| vColor = color; |
| } |
| )"; |
| |
| constexpr char kSimpleFragmentShader[] = R"(precision mediump float; |
| varying vec4 vColor; |
| void main() |
| { |
| gl_FragColor = vColor; |
| } |
| )"; |
| |
| void SimpleStateChangeTest::simpleDrawWithBuffer(GLBuffer *buffer) |
| { |
| ANGLE_GL_PROGRAM(program, kSimpleVertexShader, kSimpleFragmentShader); |
| glUseProgram(program); |
| |
| GLint colorLoc = glGetAttribLocation(program, "color"); |
| ASSERT_NE(-1, colorLoc); |
| |
| glBindBuffer(GL_ARRAY_BUFFER, *buffer); |
| glVertexAttribPointer(colorLoc, 4, GL_UNSIGNED_BYTE, GL_TRUE, 0, nullptr); |
| glEnableVertexAttribArray(colorLoc); |
| |
| drawQuad(program, "position", 0.5f, 1.0f, true); |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| void SimpleStateChangeTest::simpleDrawWithColor(const GLColor &color) |
| { |
| std::vector<GLColor> colors(6, color); |
| GLBuffer colorBuffer; |
| glBindBuffer(GL_ARRAY_BUFFER, colorBuffer); |
| glBufferData(GL_ARRAY_BUFFER, colors.size() * sizeof(GLColor), colors.data(), GL_STATIC_DRAW); |
| simpleDrawWithBuffer(&colorBuffer); |
| } |
| |
| // Test that we can do a drawElements call successfully after making a drawArrays call in the same |
| // frame. |
| TEST_P(SimpleStateChangeTest, DrawArraysThenDrawElements) |
| { |
| ANGLE_GL_PROGRAM(program, kBasicVertexShader, kGreenFragmentShader); |
| glUseProgram(program); |
| |
| // We expect to draw a triangle with the first 3 points to the left, then another triangle with |
| // the last 3 vertices using a drawElements call. |
| auto vertices = std::vector<Vector3>{{-1.0f, -1.0f, 0.0f}, |
| {-1.0f, 1.0f, 0.0f}, |
| {0.0f, 0.0f, 0.0f}, |
| {1.0f, 1.0f, 0.0f}, |
| {1.0f, -1.0f, 0.0f}}; |
| |
| // If we use these indices to draw we'll be using the last 2 vertex only to draw. |
| auto indices = std::vector<GLushort>{2, 3, 4}; |
| |
| GLint positionLocation = glGetAttribLocation(program, "position"); |
| ASSERT_NE(-1, positionLocation); |
| |
| GLBuffer vertexBuffer; |
| glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer); |
| glBufferData(GL_ARRAY_BUFFER, sizeof(vertices[0]) * vertices.size(), vertices.data(), |
| GL_STATIC_DRAW); |
| |
| GLBuffer indexBuffer; |
| glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuffer); |
| glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices.size() * sizeof(GLushort), &indices[0], |
| GL_STATIC_DRAW); |
| |
| glVertexAttribPointer(positionLocation, 3, GL_FLOAT, GL_FALSE, 0, nullptr); |
| glEnableVertexAttribArray(positionLocation); |
| |
| for (int i = 0; i < 10; i++) |
| { |
| glClear(GL_COLOR_BUFFER_BIT); |
| glDrawArrays(GL_TRIANGLES, 0, 3); // triangle to the left |
| glDrawElements(GL_TRIANGLES, 3, GL_UNSIGNED_SHORT, nullptr); // triangle to the right |
| swapBuffers(); |
| } |
| glDisableVertexAttribArray(positionLocation); |
| |
| ASSERT_GL_NO_ERROR(); |
| |
| int quarterWidth = getWindowWidth() / 4; |
| int halfHeight = getWindowHeight() / 2; |
| |
| // Validate triangle to the left |
| EXPECT_PIXEL_COLOR_EQ(quarterWidth, halfHeight, GLColor::green); |
| |
| // Validate triangle to the right |
| EXPECT_PIXEL_COLOR_EQ((quarterWidth * 3), halfHeight, GLColor::green); |
| } |
| |
| // Handles deleting a Buffer when it's being used. |
| TEST_P(SimpleStateChangeTest, DeleteBufferInUse) |
| { |
| std::vector<GLColor> colorData(6, GLColor::red); |
| |
| GLBuffer buffer; |
| glBindBuffer(GL_ARRAY_BUFFER, buffer); |
| glBufferData(GL_ARRAY_BUFFER, sizeof(GLColor) * colorData.size(), colorData.data(), |
| GL_STATIC_DRAW); |
| |
| simpleDrawWithBuffer(&buffer); |
| |
| buffer.reset(); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red); |
| } |
| |
| // Tests that resizing a Buffer during a draw works as expected. |
| TEST_P(SimpleStateChangeTest, RedefineBufferInUse) |
| { |
| std::vector<GLColor> redColorData(6, GLColor::red); |
| |
| GLBuffer buffer; |
| glBindBuffer(GL_ARRAY_BUFFER, buffer); |
| glBufferData(GL_ARRAY_BUFFER, sizeof(GLColor) * redColorData.size(), redColorData.data(), |
| GL_STATIC_DRAW); |
| |
| // Trigger a pull from the buffer. |
| simpleDrawWithBuffer(&buffer); |
| |
| // Redefine the buffer that's in-flight. |
| std::vector<GLColor> greenColorData(1024, GLColor::green); |
| glBufferData(GL_ARRAY_BUFFER, sizeof(GLColor) * greenColorData.size(), greenColorData.data(), |
| GL_STATIC_DRAW); |
| |
| // Trigger the flush and verify the first draw worked. |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red); |
| |
| // Draw again and verify the new data is correct. |
| simpleDrawWithBuffer(&buffer); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green); |
| } |
| |
| // Tests updating a buffer's contents while in use, without redefining it. |
| TEST_P(SimpleStateChangeTest, UpdateBufferInUse) |
| { |
| std::vector<GLColor> redColorData(6, GLColor::red); |
| |
| GLBuffer buffer; |
| glBindBuffer(GL_ARRAY_BUFFER, buffer); |
| glBufferData(GL_ARRAY_BUFFER, sizeof(GLColor) * redColorData.size(), redColorData.data(), |
| GL_STATIC_DRAW); |
| |
| // Trigger a pull from the buffer. |
| simpleDrawWithBuffer(&buffer); |
| |
| // Update the buffer that's in-flight. |
| std::vector<GLColor> greenColorData(6, GLColor::green); |
| glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(GLColor) * greenColorData.size(), |
| greenColorData.data()); |
| |
| // Trigger the flush and verify the first draw worked. |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red); |
| |
| // Draw again and verify the new data is correct. |
| simpleDrawWithBuffer(&buffer); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green); |
| } |
| |
| // Tests that deleting an in-flight Texture does not immediately delete the resource. |
| TEST_P(SimpleStateChangeTest, DeleteTextureInUse) |
| { |
| std::array<GLColor, 4> colors = { |
| {GLColor::red, GLColor::green, GLColor::blue, GLColor::yellow}}; |
| |
| GLTexture tex; |
| glBindTexture(GL_TEXTURE_2D, tex); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, colors.data()); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
| |
| draw2DTexturedQuad(0.5f, 1.0f, true); |
| tex.reset(); |
| EXPECT_GL_NO_ERROR(); |
| |
| int w = getWindowWidth() - 2; |
| int h = getWindowHeight() - 2; |
| |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red); |
| EXPECT_PIXEL_COLOR_EQ(w, 0, GLColor::green); |
| EXPECT_PIXEL_COLOR_EQ(0, h, GLColor::blue); |
| EXPECT_PIXEL_COLOR_EQ(w, h, GLColor::yellow); |
| } |
| |
| // Tests that modifying a texture parameter in-flight does not cause problems. |
| TEST_P(SimpleStateChangeTest, ChangeTextureFilterModeBetweenTwoDraws) |
| { |
| std::array<GLColor, 4> colors = { |
| {GLColor::black, GLColor::white, GLColor::black, GLColor::white}}; |
| |
| GLTexture tex; |
| glBindTexture(GL_TEXTURE_2D, tex); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, colors.data()); |
| |
| glClearColor(1.0f, 0.0f, 0.0f, 1.0f); |
| glClear(GL_COLOR_BUFFER_BIT); |
| |
| // Draw to the left side of the window only with NEAREST. |
| glViewport(0, 0, getWindowWidth() / 2, getWindowHeight()); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
| draw2DTexturedQuad(0.5f, 1.0f, true); |
| |
| // Draw to the right side of the window only with LINEAR. |
| glViewport(getWindowWidth() / 2, 0, getWindowWidth() / 2, getWindowHeight()); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
| draw2DTexturedQuad(0.5f, 1.0f, true); |
| EXPECT_GL_NO_ERROR(); |
| |
| glViewport(0, 0, getWindowWidth(), getWindowHeight()); |
| |
| // The first half (left) should be only black followed by plain white. |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::black); |
| EXPECT_PIXEL_COLOR_EQ(1, 0, GLColor::black); |
| EXPECT_PIXEL_COLOR_EQ((getWindowWidth() / 2) - 3, 0, GLColor::white); |
| EXPECT_PIXEL_COLOR_EQ((getWindowWidth() / 2) - 4, 0, GLColor::white); |
| |
| // The second half (right) should be a gradient so we shouldn't find plain black/white in the |
| // middle. |
| EXPECT_NE(angle::ReadColor((getWindowWidth() / 4) * 3, 0), GLColor::black); |
| EXPECT_NE(angle::ReadColor((getWindowWidth() / 4) * 3, 0), GLColor::white); |
| } |
| |
| // Tests that bind the same texture all the time between different draw calls. |
| TEST_P(SimpleStateChangeTest, RebindTextureDrawAgain) |
| { |
| GLuint program = get2DTexturedQuadProgram(); |
| glUseProgram(program); |
| |
| std::array<GLColor, 4> colors = {{GLColor::cyan, GLColor::cyan, GLColor::cyan, GLColor::cyan}}; |
| |
| // Setup the texture |
| GLTexture tex; |
| glBindTexture(GL_TEXTURE_2D, tex); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, colors.data()); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
| |
| // Setup the vertex array to draw a quad. |
| GLint positionLocation = glGetAttribLocation(program, "position"); |
| setupQuadVertexBuffer(1.0f, 1.0f); |
| glVertexAttribPointer(positionLocation, 3, GL_FLOAT, GL_FALSE, 0, 0); |
| glEnableVertexAttribArray(positionLocation); |
| |
| // Draw quad |
| glDrawArrays(GL_TRIANGLES, 0, 6); |
| ASSERT_GL_NO_ERROR(); |
| |
| // Bind again |
| glBindTexture(GL_TEXTURE_2D, tex); |
| ASSERT_GL_NO_ERROR(); |
| |
| // Draw again, should still work. |
| glDrawArrays(GL_TRIANGLES, 0, 6); |
| ASSERT_GL_NO_ERROR(); |
| |
| // Validate whole surface is filled with cyan. |
| int h = getWindowHeight() - 1; |
| int w = getWindowWidth() - 1; |
| |
| EXPECT_PIXEL_RECT_EQ(0, 0, w, h, GLColor::cyan); |
| } |
| |
| // Test that we can alternate between textures between different draws. |
| TEST_P(SimpleStateChangeTest, DrawTextureAThenTextureBThenTextureA) |
| { |
| GLuint program = get2DTexturedQuadProgram(); |
| glUseProgram(program); |
| |
| std::array<GLColor, 4> colorsTex1 = { |
| {GLColor::cyan, GLColor::cyan, GLColor::cyan, GLColor::cyan}}; |
| |
| std::array<GLColor, 4> colorsTex2 = { |
| {GLColor::magenta, GLColor::magenta, GLColor::magenta, GLColor::magenta}}; |
| |
| // Setup the texture |
| GLTexture tex1; |
| glBindTexture(GL_TEXTURE_2D, tex1); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, colorsTex1.data()); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
| |
| GLTexture tex2; |
| glBindTexture(GL_TEXTURE_2D, tex2); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, colorsTex2.data()); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
| |
| // Setup the vertex array to draw a quad. |
| GLint positionLocation = glGetAttribLocation(program, "position"); |
| setupQuadVertexBuffer(1.0f, 1.0f); |
| glVertexAttribPointer(positionLocation, 3, GL_FLOAT, GL_FALSE, 0, 0); |
| glEnableVertexAttribArray(positionLocation); |
| |
| // Draw quad |
| glBindTexture(GL_TEXTURE_2D, tex1); |
| glDrawArrays(GL_TRIANGLES, 0, 6); |
| ASSERT_GL_NO_ERROR(); |
| |
| // Bind again, draw again |
| glBindTexture(GL_TEXTURE_2D, tex2); |
| glDrawArrays(GL_TRIANGLES, 0, 6); |
| ASSERT_GL_NO_ERROR(); |
| |
| // Bind again, draw again |
| glBindTexture(GL_TEXTURE_2D, tex1); |
| glDrawArrays(GL_TRIANGLES, 0, 6); |
| |
| // Validate whole surface is filled with cyan. |
| int h = getWindowHeight() - 1; |
| int w = getWindowWidth() - 1; |
| |
| EXPECT_PIXEL_RECT_EQ(0, 0, w, h, GLColor::cyan); |
| } |
| |
| // Tests that redefining an in-flight Texture does not affect the in-flight resource. |
| TEST_P(SimpleStateChangeTest, RedefineTextureInUse) |
| { |
| std::array<GLColor, 4> colors = { |
| {GLColor::red, GLColor::green, GLColor::blue, GLColor::yellow}}; |
| |
| GLTexture tex; |
| glBindTexture(GL_TEXTURE_2D, tex); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, colors.data()); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
| |
| // Draw with the first texture. |
| draw2DTexturedQuad(0.5f, 1.0f, true); |
| |
| // Redefine the in-flight texture. |
| constexpr int kBigSize = 32; |
| std::vector<GLColor> bigColors; |
| for (int y = 0; y < kBigSize; ++y) |
| { |
| for (int x = 0; x < kBigSize; ++x) |
| { |
| bool xComp = x < kBigSize / 2; |
| bool yComp = y < kBigSize / 2; |
| if (yComp) |
| { |
| bigColors.push_back(xComp ? GLColor::cyan : GLColor::magenta); |
| } |
| else |
| { |
| bigColors.push_back(xComp ? GLColor::yellow : GLColor::white); |
| } |
| } |
| } |
| |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, bigColors.data()); |
| EXPECT_GL_NO_ERROR(); |
| |
| // Verify the first draw had the correct data via ReadPixels. |
| int w = getWindowWidth() - 2; |
| int h = getWindowHeight() - 2; |
| |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red); |
| EXPECT_PIXEL_COLOR_EQ(w, 0, GLColor::green); |
| EXPECT_PIXEL_COLOR_EQ(0, h, GLColor::blue); |
| EXPECT_PIXEL_COLOR_EQ(w, h, GLColor::yellow); |
| |
| // Draw and verify with the redefined data. |
| draw2DTexturedQuad(0.5f, 1.0f, true); |
| EXPECT_GL_NO_ERROR(); |
| |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::cyan); |
| EXPECT_PIXEL_COLOR_EQ(w, 0, GLColor::magenta); |
| EXPECT_PIXEL_COLOR_EQ(0, h, GLColor::yellow); |
| EXPECT_PIXEL_COLOR_EQ(w, h, GLColor::white); |
| } |
| |
| // Test updating a Texture's contents while in use by GL works as expected. |
| TEST_P(SimpleStateChangeTest, UpdateTextureInUse) |
| { |
| std::array<GLColor, 4> rgby = {{GLColor::red, GLColor::green, GLColor::blue, GLColor::yellow}}; |
| |
| GLTexture tex; |
| glBindTexture(GL_TEXTURE_2D, tex); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, rgby.data()); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
| |
| // Draw RGBY to the Framebuffer. The texture is now in-use by GL. |
| draw2DTexturedQuad(0.5f, 1.0f, true); |
| |
| // Update the texture to be YBGR, while the Texture is in-use. Should not affect the draw. |
| std::array<GLColor, 4> ybgr = {{GLColor::yellow, GLColor::blue, GLColor::green, GLColor::red}}; |
| glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 2, 2, GL_RGBA, GL_UNSIGNED_BYTE, ybgr.data()); |
| ASSERT_GL_NO_ERROR(); |
| |
| // Check the Framebuffer. The draw call should have completed with the original RGBY data. |
| int w = getWindowWidth() - 2; |
| int h = getWindowHeight() - 2; |
| |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red); |
| EXPECT_PIXEL_COLOR_EQ(w, 0, GLColor::green); |
| EXPECT_PIXEL_COLOR_EQ(0, h, GLColor::blue); |
| EXPECT_PIXEL_COLOR_EQ(w, h, GLColor::yellow); |
| |
| // Draw again to the Framebuffer. The second draw call should use the updated YBGR data. |
| draw2DTexturedQuad(0.5f, 1.0f, true); |
| |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::yellow); |
| EXPECT_PIXEL_COLOR_EQ(w, 0, GLColor::blue); |
| EXPECT_PIXEL_COLOR_EQ(0, h, GLColor::green); |
| EXPECT_PIXEL_COLOR_EQ(w, h, GLColor::red); |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| const char kSolidColorVertexShader[] = R"(attribute vec2 position; |
| void main() |
| { |
| gl_Position = vec4(position, 0, 1); |
| })"; |
| |
| const char kSolidColorFragmentShader[] = R"(void main() |
| { |
| gl_FragColor = vec4(1, 0, 0, 1); |
| })"; |
| |
| // Tests deleting a Framebuffer that is in use. |
| TEST_P(SimpleStateChangeTest, DeleteFramebufferInUse) |
| { |
| constexpr int kSize = 16; |
| |
| // Create a simple framebuffer. |
| GLTexture texture; |
| glBindTexture(GL_TEXTURE_2D, texture); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, kSize, kSize, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| |
| GLFramebuffer framebuffer; |
| glBindFramebuffer(GL_FRAMEBUFFER, framebuffer); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0); |
| ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| glViewport(0, 0, kSize, kSize); |
| |
| // Draw a solid red color to the framebuffer. |
| ANGLE_GL_PROGRAM(program, kSolidColorVertexShader, kSolidColorFragmentShader); |
| drawQuad(program, "position", 0.5f, 1.0f, true); |
| |
| // Delete the framebuffer while the call is in flight. |
| framebuffer.reset(); |
| |
| // Make a new framebuffer so we can read back the texture. |
| glBindFramebuffer(GL_FRAMEBUFFER, framebuffer); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0); |
| ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| // Flush via ReadPixels and check red was drawn. |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red); |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| // Tests deleting a Framebuffer that is in use. |
| TEST_P(SimpleStateChangeTest, RedefineFramebufferInUse) |
| { |
| constexpr int kSize = 16; |
| |
| // Create a simple framebuffer. |
| GLTexture texture; |
| glBindTexture(GL_TEXTURE_2D, texture); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, kSize, kSize, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| |
| GLFramebuffer framebuffer; |
| glBindFramebuffer(GL_FRAMEBUFFER, framebuffer); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0); |
| ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| glViewport(0, 0, kSize, kSize); |
| |
| // Draw red to the framebuffer. |
| simpleDrawWithColor(GLColor::red); |
| |
| // Change the framebuffer while the call is in flight to a new texture. |
| GLTexture otherTexture; |
| glBindTexture(GL_TEXTURE_2D, otherTexture); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, kSize, kSize, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, otherTexture, 0); |
| ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| // Draw green to the framebuffer. Verify the color. |
| simpleDrawWithColor(GLColor::green); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green); |
| |
| // Make a new framebuffer so we can read back the first texture and verify red. |
| glBindFramebuffer(GL_FRAMEBUFFER, framebuffer); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0); |
| ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red); |
| ASSERT_GL_NO_ERROR(); |
| } |
| |
| // Tests that redefining a Framebuffer Texture Attachment works as expected. |
| TEST_P(SimpleStateChangeTest, RedefineFramebufferTexture) |
| { |
| GLFramebuffer framebuffer; |
| glBindFramebuffer(GL_FRAMEBUFFER, framebuffer); |
| |
| // Bind a simple 8x8 texture to the framebuffer, draw red. |
| GLTexture texture; |
| glBindTexture(GL_TEXTURE_2D, texture); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0); |
| |
| glViewport(0, 0, 8, 8); |
| simpleDrawWithColor(GLColor::red); |
| ASSERT_GL_NO_ERROR(); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red) << "first draw should be red"; |
| |
| // Redefine the texture to 32x32, draw green. Verify we get what we expect. |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
| glViewport(0, 0, 32, 32); |
| simpleDrawWithColor(GLColor::green); |
| ASSERT_GL_NO_ERROR(); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green) << "second draw should be green"; |
| } |
| |
| // Validates disabling cull face really disables it. |
| TEST_P(SimpleStateChangeTest, EnableAndDisableCullFace) |
| { |
| ANGLE_GL_PROGRAM(program, kSolidColorVertexShader, kSolidColorFragmentShader); |
| glUseProgram(program); |
| |
| glClear(GL_COLOR_BUFFER_BIT); |
| glEnable(GL_CULL_FACE); |
| |
| glCullFace(GL_FRONT); |
| |
| drawQuad(program.get(), "position", 0.0f, 1.0f, true); |
| |
| ASSERT_GL_NO_ERROR(); |
| |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::transparentBlack); |
| |
| // Disable cull face and redraw, then make sure we have the quad drawn. |
| glDisable(GL_CULL_FACE); |
| |
| drawQuad(program.get(), "position", 0.0f, 1.0f, true); |
| |
| ASSERT_GL_NO_ERROR(); |
| |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red); |
| } |
| |
| TEST_P(SimpleStateChangeTest, ScissorTest) |
| { |
| // This test validates this order of state changes: |
| // 1- Set scissor but don't enable it, validate its not used. |
| // 2- Enable it and validate its working. |
| // 3- Disable the scissor validate its not used anymore. |
| |
| ANGLE_GL_PROGRAM(program, kSolidColorVertexShader, kSolidColorFragmentShader); |
| |
| glClear(GL_COLOR_BUFFER_BIT); |
| |
| // Set the scissor region, but don't enable it yet. |
| glScissor(getWindowWidth() / 4, getWindowHeight() / 4, getWindowWidth() / 2, |
| getWindowHeight() / 2); |
| |
| // Fill the whole screen with a quad. |
| drawQuad(program.get(), "position", 0.0f, 1.0f, true); |
| |
| ASSERT_GL_NO_ERROR(); |
| |
| // Test outside, scissor isnt enabled so its red. |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red); |
| |
| // Test inside, red of the fragment shader. |
| EXPECT_PIXEL_COLOR_EQ(getWindowWidth() / 2, getWindowHeight() / 2, GLColor::red); |
| |
| // Clear everything and start over with the test enabled. |
| glClear(GL_COLOR_BUFFER_BIT); |
| glEnable(GL_SCISSOR_TEST); |
| |
| drawQuad(program.get(), "position", 0.0f, 1.0f, true); |
| |
| ASSERT_GL_NO_ERROR(); |
| |
| // Test outside the scissor test, pitch black. |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::transparentBlack); |
| |
| // Test inside, red of the fragment shader. |
| EXPECT_PIXEL_COLOR_EQ(getWindowWidth() / 2, getWindowHeight() / 2, GLColor::red); |
| |
| // Now disable the scissor test, do it again, and verify the region isn't used |
| // for the scissor test. |
| glDisable(GL_SCISSOR_TEST); |
| |
| // Clear everything and start over with the test enabled. |
| glClear(GL_COLOR_BUFFER_BIT); |
| |
| drawQuad(program.get(), "position", 0.0f, 1.0f, true); |
| |
| ASSERT_GL_NO_ERROR(); |
| |
| // Test outside, scissor isnt enabled so its red. |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red); |
| |
| // Test inside, red of the fragment shader. |
| EXPECT_PIXEL_COLOR_EQ(getWindowWidth() / 2, getWindowHeight() / 2, GLColor::red); |
| } |
| |
| // This test validates we are able to change the valid of a uniform dynamically. |
| TEST_P(SimpleStateChangeTest, UniformUpdateTest) |
| { |
| constexpr char kPositionUniformVertexShader[] = R"( |
| precision mediump float; |
| attribute vec2 position; |
| uniform vec2 uniPosModifier; |
| void main() |
| { |
| gl_Position = vec4(position + uniPosModifier, 0, 1); |
| })"; |
| |
| constexpr char kColorUniformFragmentShader[] = R"( |
| precision mediump float; |
| uniform vec4 uniColor; |
| void main() |
| { |
| gl_FragColor = uniColor; |
| })"; |
| |
| ANGLE_GL_PROGRAM(program, kPositionUniformVertexShader, kColorUniformFragmentShader); |
| glUseProgram(program); |
| |
| glClearColor(0.0f, 0.0f, 0.0f, 1.0f); |
| glClear(GL_COLOR_BUFFER_BIT); |
| |
| GLint posUniformLocation = glGetUniformLocation(program, "uniPosModifier"); |
| ASSERT_NE(posUniformLocation, -1); |
| GLint colorUniformLocation = glGetUniformLocation(program, "uniColor"); |
| ASSERT_NE(colorUniformLocation, -1); |
| |
| // draw a red quad to the left side. |
| glUniform2f(posUniformLocation, -0.5, 0.0); |
| glUniform4f(colorUniformLocation, 1.0, 0.0, 0.0, 1.0); |
| drawQuad(program.get(), "position", 0.0f, 0.5f, true); |
| |
| // draw a green quad to the right side. |
| glUniform2f(posUniformLocation, 0.5, 0.0); |
| glUniform4f(colorUniformLocation, 0.0, 1.0, 0.0, 1.0); |
| drawQuad(program.get(), "position", 0.0f, 0.5f, true); |
| |
| ASSERT_GL_NO_ERROR(); |
| |
| // Test the center of the left quad. Should be red. |
| EXPECT_PIXEL_COLOR_EQ(getWindowWidth() / 4, getWindowHeight() / 2, GLColor::red); |
| |
| // Test the center of the right quad. Should be green. |
| EXPECT_PIXEL_COLOR_EQ(getWindowWidth() / 4 * 3, getWindowHeight() / 2, GLColor::green); |
| } |
| |
| // Tests that changing the storage of a Renderbuffer currently in use by GL works as expected. |
| TEST_P(SimpleStateChangeTest, RedefineRenderbufferInUse) |
| { |
| GLRenderbuffer renderbuffer; |
| glBindRenderbuffer(GL_RENDERBUFFER, renderbuffer); |
| glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, 16, 16); |
| |
| GLFramebuffer framebuffer; |
| glBindFramebuffer(GL_FRAMEBUFFER, framebuffer); |
| glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, renderbuffer); |
| |
| ASSERT_GL_NO_ERROR(); |
| ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| ANGLE_GL_PROGRAM(program, kSimpleVertexShader, kSimpleFragmentShader); |
| GLint colorLoc = glGetAttribLocation(program, "color"); |
| ASSERT_NE(-1, colorLoc); |
| |
| // Set up and draw red to the left half the screen. |
| std::vector<GLColor> redData(6, GLColor::red); |
| GLBuffer vertexBufferRed; |
| glBindBuffer(GL_ARRAY_BUFFER, vertexBufferRed); |
| glBufferData(GL_ARRAY_BUFFER, redData.size() * sizeof(GLColor), redData.data(), GL_STATIC_DRAW); |
| glVertexAttribPointer(colorLoc, 4, GL_UNSIGNED_BYTE, GL_TRUE, 0, nullptr); |
| glEnableVertexAttribArray(colorLoc); |
| |
| glViewport(0, 0, 16, 16); |
| drawQuad(program, "position", 0.5f, 1.0f, true); |
| |
| // Immediately redefine the Renderbuffer. |
| glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, 64, 64); |
| |
| // Set up and draw green to the right half of the screen. |
| std::vector<GLColor> greenData(6, GLColor::green); |
| GLBuffer vertexBufferGreen; |
| glBindBuffer(GL_ARRAY_BUFFER, vertexBufferGreen); |
| glBufferData(GL_ARRAY_BUFFER, greenData.size() * sizeof(GLColor), greenData.data(), |
| GL_STATIC_DRAW); |
| glVertexAttribPointer(colorLoc, 4, GL_UNSIGNED_BYTE, GL_TRUE, 0, nullptr); |
| glEnableVertexAttribArray(colorLoc); |
| |
| glViewport(0, 0, 64, 64); |
| drawQuad(program, "position", 0.5f, 1.0f, true); |
| |
| ASSERT_GL_NO_ERROR(); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green); |
| } |
| |
| // Validate that we can draw -> change frame buffer size -> draw and we'll be rendering |
| // at the full size of the new framebuffer. |
| TEST_P(SimpleStateChangeTest, ChangeFramebufferSizeBetweenTwoDraws) |
| { |
| constexpr char vertexShader[] = |
| R"(attribute vec2 position; |
| void main() |
| { |
| gl_Position = vec4(position, 0, 1); |
| })"; |
| |
| constexpr char fragShader[] = R"(precision mediump float; |
| uniform vec4 color; |
| void main() { |
| gl_FragColor = color; |
| })"; |
| |
| constexpr size_t kSmallTextureSize = 2; |
| constexpr size_t kBigTextureSize = 4; |
| |
| // Create 2 textures, one of 2x2 and the other 4x4 |
| GLTexture texture1; |
| glBindTexture(GL_TEXTURE_2D, texture1); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, kSmallTextureSize, kSmallTextureSize, 0, GL_RGBA, |
| GL_UNSIGNED_BYTE, nullptr); |
| ASSERT_GL_NO_ERROR(); |
| |
| GLTexture texture2; |
| glBindTexture(GL_TEXTURE_2D, texture2); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, kBigTextureSize, kBigTextureSize, 0, GL_RGBA, |
| GL_UNSIGNED_BYTE, nullptr); |
| ASSERT_GL_NO_ERROR(); |
| |
| // A framebuffer for each texture to draw on. |
| GLFramebuffer framebuffer1; |
| glBindFramebuffer(GL_FRAMEBUFFER, framebuffer1); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture1, 0); |
| ASSERT_GL_NO_ERROR(); |
| ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| GLFramebuffer framebuffer2; |
| glBindFramebuffer(GL_FRAMEBUFFER, framebuffer2); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture2, 0); |
| ASSERT_GL_NO_ERROR(); |
| ASSERT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| ANGLE_GL_PROGRAM(program, vertexShader, fragShader); |
| glUseProgram(program); |
| GLint uniformLocation = glGetUniformLocation(program, "color"); |
| ASSERT_NE(uniformLocation, -1); |
| |
| // Bind to the first framebuffer for drawing. |
| glBindFramebuffer(GL_FRAMEBUFFER, framebuffer1); |
| |
| // Set a scissor, that will trigger setting the internal scissor state in Vulkan to |
| // (0,0,framebuffer.width, framebuffer.height) size since the scissor isn't enabled. |
| glScissor(0, 0, 16, 16); |
| ASSERT_GL_NO_ERROR(); |
| |
| // Set color to red. |
| glUniform4f(uniformLocation, 1.0f, 0.0f, 0.0f, 1.0f); |
| glViewport(0, 0, kSmallTextureSize, kSmallTextureSize); |
| |
| // Draw a full sized red quad |
| drawQuad(program, "position", 1.0f, 1.0f, true); |
| ASSERT_GL_NO_ERROR(); |
| |
| // Bind to the second (bigger) framebuffer |
| glBindFramebuffer(GL_FRAMEBUFFER, framebuffer2); |
| glViewport(0, 0, kBigTextureSize, kBigTextureSize); |
| |
| ASSERT_GL_NO_ERROR(); |
| |
| // Set color to green. |
| glUniform4f(uniformLocation, 0.0f, 1.0f, 0.0f, 1.0f); |
| |
| // Draw again and we should fill everything with green and expect everything to be green. |
| drawQuad(program, "position", 1.0f, 1.0f, true); |
| ASSERT_GL_NO_ERROR(); |
| |
| EXPECT_PIXEL_RECT_EQ(0, 0, kBigTextureSize, kBigTextureSize, GLColor::green); |
| } |
| |
| } // anonymous namespace |
| |
| ANGLE_INSTANTIATE_TEST(StateChangeTest, ES2_D3D9(), ES2_D3D11(), ES2_OPENGL()); |
| ANGLE_INSTANTIATE_TEST(LineLoopStateChangeTest, |
| ES2_D3D9(), |
| ES2_D3D11(), |
| ES2_OPENGL(), |
| ES2_VULKAN()); |
| ANGLE_INSTANTIATE_TEST(StateChangeRenderTest, |
| ES2_D3D9(), |
| ES2_D3D11(), |
| ES2_OPENGL(), |
| ES2_D3D11_FL9_3()); |
| ANGLE_INSTANTIATE_TEST(StateChangeTestES3, ES3_D3D11(), ES3_OPENGL()); |
| ANGLE_INSTANTIATE_TEST(SimpleStateChangeTest, ES2_VULKAN(), ES2_OPENGL()); |