| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <GLES2/gl2.h> |
| |
| #include "gpu/command_buffer/tests/gl_manager.h" |
| #include "gpu/command_buffer/tests/gl_test_utils.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace gpu { |
| |
| namespace { |
| const GLenum kCubeMapTextureTargets[] = { |
| GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_NEGATIVE_X, |
| GL_TEXTURE_CUBE_MAP_POSITIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, |
| GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, |
| }; |
| } // namespace |
| |
| // A collection of tests that exercise the cube map texture. |
| class GLCubeMapTextureTest : public testing::TestWithParam<GLenum> { |
| protected: |
| void SetUp() override { |
| gl_.Initialize(GLManager::Options()); |
| for (int i = 0; i < 256; i++) { |
| pixels_[i * 4] = 255u; |
| pixels_[(i * 4) + 1] = 0; |
| pixels_[(i * 4) + 2] = 0; |
| pixels_[(i * 4) + 3] = 255u; |
| } |
| |
| glGenTextures(1, &texture_); |
| glBindTexture(GL_TEXTURE_CUBE_MAP, texture_); |
| EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError()); |
| |
| glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
| glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
| glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
| glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
| EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError()); |
| |
| glGenFramebuffers(1, &framebuffer_id_); |
| } |
| |
| void TearDown() override { |
| glDeleteTextures(1, &texture_); |
| glDeleteFramebuffers(1, &framebuffer_id_); |
| gl_.Destroy(); |
| } |
| |
| GLManager gl_; |
| uint8 pixels_[256 * 4]; |
| const int width_ = 16; |
| GLuint texture_; |
| GLuint framebuffer_id_; |
| }; |
| |
| INSTANTIATE_TEST_CASE_P(GLCubeMapTextureTests, |
| GLCubeMapTextureTest, |
| ::testing::ValuesIn(kCubeMapTextureTargets)); |
| |
| TEST_P(GLCubeMapTextureTest, TexImage2DAfterFBOBinding) { |
| GLenum cube_map_target = GetParam(); |
| |
| glBindFramebuffer(GL_FRAMEBUFFER, framebuffer_id_); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, cube_map_target, |
| texture_, 0); |
| EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError()); |
| |
| glBindTexture(GL_TEXTURE_CUBE_MAP, texture_); |
| // force_gl_finish_after_compositing workaround prevents Nexus 5 crash. |
| // TODO(dshwang): remove the workaround when it's fixed. crbug.com/518889 |
| glTexImage2D(cube_map_target, 0, GL_RGBA, width_, width_, 0, GL_RGBA, |
| GL_UNSIGNED_BYTE, pixels_); |
| EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError()); |
| } |
| |
| TEST_P(GLCubeMapTextureTest, ReadPixels) { |
| GLenum cube_map_target = GetParam(); |
| |
| glBindTexture(GL_TEXTURE_CUBE_MAP, texture_); |
| EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError()); |
| |
| // Make a cube texture complete |
| for (unsigned i = 0; i < arraysize(kCubeMapTextureTargets); i++) { |
| glTexImage2D(kCubeMapTextureTargets[i], 0, GL_RGBA, width_, width_, 0, |
| GL_RGBA, GL_UNSIGNED_BYTE, pixels_); |
| EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError()); |
| } |
| |
| glBindFramebuffer(GL_FRAMEBUFFER, framebuffer_id_); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, cube_map_target, |
| texture_, 0); |
| EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError()); |
| |
| // Check that FB is complete. |
| EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE), |
| glCheckFramebufferStatus(GL_FRAMEBUFFER)); |
| |
| GLTestHelper::CheckPixels(0, 0, width_, width_, 0, pixels_); |
| EXPECT_TRUE(GL_NO_ERROR == glGetError()); |
| } |
| |
| #if defined(OS_WIN) |
| // TODO(dshwang): ANGLE crashes. crbug.com/518889 |
| TEST_P(GLCubeMapTextureTest, DISABLED_ReadPixelsFromIncompleteFBO) { |
| #else |
| TEST_P(GLCubeMapTextureTest, ReadPixelsFromIncompleteFBO) { |
| #endif |
| GLenum cube_map_target = GetParam(); |
| |
| glBindTexture(GL_TEXTURE_CUBE_MAP, texture_); |
| EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError()); |
| |
| glTexImage2D(cube_map_target, 0, GL_RGBA, width_, width_, 0, GL_RGBA, |
| GL_UNSIGNED_BYTE, pixels_); |
| EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError()); |
| |
| glBindFramebuffer(GL_FRAMEBUFFER, framebuffer_id_); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, cube_map_target, |
| texture_, 0); |
| |
| // force_gl_finish_after_compositing workaround prevents Nexus 5 crash. |
| // TODO(dshwang): remove the workaround when it's fixed. crbug.com/518889 |
| EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError()); |
| |
| GLsizei size = width_ * width_ * 4; |
| scoped_ptr<uint8[]> pixels(new uint8[size]); |
| // ANGLE crashes on glReadPixels() from incomplete FBO. |
| glReadPixels(0, 0, width_, width_, GL_RGBA, GL_UNSIGNED_BYTE, pixels.get()); |
| // TODO(dshwang): According to spec, above glReadPixels() should fail and |
| // glGetError() should report an error, but some drivers are fine to bind |
| // incomplete cube map texture to FBO. crbug.com/517548 |
| glGetError(); |
| } |
| |
| } // namespace gpu |