| // |
| // 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" |
| |
| using namespace angle; |
| |
| namespace |
| { |
| |
| class UnpackRowLengthTest : public ANGLETest |
| { |
| protected: |
| UnpackRowLengthTest() |
| { |
| setWindowWidth(128); |
| setWindowHeight(128); |
| setConfigRedBits(8); |
| setConfigGreenBits(8); |
| setConfigBlueBits(8); |
| setConfigAlphaBits(8); |
| setConfigDepthBits(24); |
| |
| mProgram = 0; |
| } |
| |
| void SetUp() override |
| { |
| ANGLETest::SetUp(); |
| |
| const std::string vertexShaderSource = SHADER_SOURCE |
| ( |
| precision highp float; |
| attribute vec4 position; |
| |
| void main() |
| { |
| gl_Position = position; |
| } |
| ); |
| |
| const std::string fragmentShaderSource = SHADER_SOURCE |
| ( |
| uniform sampler2D tex; |
| |
| void main() |
| { |
| gl_FragColor = texture2D(tex, vec2(0.0, 1.0)); |
| } |
| ); |
| |
| mProgram = CompileProgram(vertexShaderSource, fragmentShaderSource); |
| if (mProgram == 0) |
| { |
| FAIL() << "shader compilation failed."; |
| } |
| } |
| |
| void TearDown() override |
| { |
| glDeleteProgram(mProgram); |
| |
| ANGLETest::TearDown(); |
| } |
| |
| void testRowLength(int texSize, int rowLength) |
| { |
| glPixelStorei(GL_UNPACK_ROW_LENGTH, rowLength); |
| |
| if ((getClientMajorVersion() == 3) || extensionEnabled("GL_EXT_unpack_subimage")) |
| { |
| // Only texSize * texSize region is filled as WHITE, other parts are BLACK. |
| // If the UNPACK_ROW_LENGTH is implemented correctly, all texels inside this texture are WHITE. |
| std::vector<GLubyte> buf(rowLength * texSize * 4); |
| for (int y = 0; y < texSize; y++) |
| { |
| std::vector<GLubyte>::iterator rowIter = buf.begin() + y * rowLength * 4; |
| std::fill(rowIter, rowIter + texSize * 4, static_cast<GLubyte>(255u)); |
| std::fill(rowIter + texSize * 4, rowIter + rowLength * 4, static_cast<GLubyte>(0u)); |
| } |
| |
| GLuint tex; |
| glGenTextures(1, &tex); |
| glBindTexture(GL_TEXTURE_2D, tex); |
| |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, texSize, texSize, 0, GL_RGBA, GL_UNSIGNED_BYTE, &buf[0]); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
| |
| drawQuad(mProgram, "position", 0.5f); |
| |
| EXPECT_PIXEL_EQ(0, 0, 255, 255, 255, 255); |
| EXPECT_PIXEL_EQ(1, 0, 255, 255, 255, 255); |
| |
| glDeleteTextures(1, &tex); |
| } |
| else |
| { |
| EXPECT_GL_ERROR(GL_INVALID_ENUM); |
| } |
| } |
| |
| GLuint mProgram; |
| }; |
| |
| TEST_P(UnpackRowLengthTest, RowLength128) |
| { |
| testRowLength(128, 128); |
| } |
| |
| TEST_P(UnpackRowLengthTest, RowLength1024) |
| { |
| testRowLength(128, 1024); |
| } |
| |
| // Use this to select which configurations (e.g. which renderer, which GLES major version) these tests should be run against. |
| ANGLE_INSTANTIATE_TEST(UnpackRowLengthTest, |
| ES3_D3D11(), |
| ES2_D3D11(), |
| ES2_D3D9(), |
| ES2_OPENGL(), |
| ES3_OPENGL(), |
| ES2_OPENGLES(), |
| ES3_OPENGLES()); |
| |
| } // namespace |