| // |
| // Copyright 2018 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. |
| // |
| |
| // DrawTextureTest.cpp: Tests basic usage of glDrawTex*. |
| |
| #include "test_utils/ANGLETest.h" |
| #include "test_utils/gl_raii.h" |
| |
| #include <memory> |
| #include <vector> |
| |
| using namespace angle; |
| |
| class DrawTextureTest : public ANGLETest |
| { |
| protected: |
| DrawTextureTest() |
| { |
| setWindowWidth(32); |
| setWindowHeight(32); |
| setConfigRedBits(8); |
| setConfigGreenBits(8); |
| setConfigBlueBits(8); |
| setConfigAlphaBits(8); |
| setConfigDepthBits(24); |
| } |
| |
| void testSetUp() override |
| { |
| mTexture.reset(new GLTexture()); |
| glEnable(GL_TEXTURE_2D); |
| glBindTexture(GL_TEXTURE_2D, mTexture->get()); |
| } |
| |
| void testTearDown() override { mTexture.reset(); } |
| |
| std::unique_ptr<GLTexture> mTexture; |
| }; |
| |
| // Negative test for invalid width/height values. |
| TEST_P(DrawTextureTest, NegativeValue) |
| { |
| glDrawTexiOES(0, 0, 0, 0, 0); |
| EXPECT_GL_ERROR(GL_INVALID_VALUE); |
| glDrawTexiOES(0, 0, 0, -1, 0); |
| EXPECT_GL_ERROR(GL_INVALID_VALUE); |
| glDrawTexiOES(0, 0, 0, 0, -1); |
| EXPECT_GL_ERROR(GL_INVALID_VALUE); |
| glDrawTexiOES(0, 0, 0, -1, -1); |
| EXPECT_GL_ERROR(GL_INVALID_VALUE); |
| } |
| |
| // Basic draw. |
| TEST_P(DrawTextureTest, Basic) |
| { |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &GLColor::green); |
| glDrawTexiOES(0, 0, 0, 1, 1); |
| EXPECT_GL_NO_ERROR(); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green); |
| } |
| |
| // Tests that odd viewport dimensions are handled correctly. |
| // If the viewport dimension is even, then the incorrect way |
| // of getting the center screen coordinate by dividing by 2 and |
| // converting to integer will work in that case, but not if |
| // the viewport dimension is odd. |
| TEST_P(DrawTextureTest, CorrectNdcForOddViewportDimensions) |
| { |
| glClearColor(0.0f, 0.0f, 0.0f, 1.0f); |
| glClear(GL_COLOR_BUFFER_BIT); |
| |
| // clang-format off |
| std::array<GLColor, 2> textureData = { |
| GLColor::green, GLColor::green |
| }; |
| // clang-format on |
| |
| glViewport(0, 0, 3, 3); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, textureData.data()); |
| |
| GLint cropRect[] = {0, 0, 2, 1}; |
| glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, cropRect); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
| EXPECT_GL_NO_ERROR(); |
| |
| GLint x = 1; |
| GLint y = 1; |
| glDrawTexiOES(x, y, 0, 2, 1); |
| EXPECT_GL_NO_ERROR(); |
| |
| EXPECT_PIXEL_COLOR_EQ(x, y, GLColor::green); |
| EXPECT_PIXEL_COLOR_EQ(x + 1, y, GLColor::green); |
| |
| EXPECT_PIXEL_COLOR_EQ(x, y + 1, GLColor::black); |
| EXPECT_PIXEL_COLOR_EQ(x + 1, y + 1, GLColor::black); |
| EXPECT_PIXEL_COLOR_EQ(x + 2, y, GLColor::black); |
| EXPECT_PIXEL_COLOR_EQ(x + 3, y, GLColor::black); |
| } |
| |
| // Tests that vertex attributes enabled with fewer than 6 verts do not cause a crash. |
| TEST_P(DrawTextureTest, VertexAttributesNoCrash) |
| { |
| glEnableClientState(GL_COLOR_ARRAY); |
| glColorPointer(4, GL_FLOAT, 0, &GLColor::white); |
| |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &GLColor::green); |
| EXPECT_GL_NO_ERROR(); |
| |
| glDrawTexiOES(0, 0, 0, 1, 1); |
| EXPECT_GL_NO_ERROR(); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green); |
| } |
| |
| // Tests that the color array, if enabled, is not used as the vertex color. |
| TEST_P(DrawTextureTest, ColorArrayNotUsed) |
| { |
| glEnableClientState(GL_COLOR_ARRAY); |
| |
| // This color is set to black on purpose to ensure that the color in the upcoming vertex array |
| // is not used in the texture draw. If it is used, then the texture we want to read will be |
| // modulated with the color in the vertex array instead of GL_CURRENT_COLOR (which at the moment |
| // is white (1.0, 1.0, 1.0, 1.0). |
| glColorPointer(4, GL_FLOAT, 0, &GLColor::black); |
| |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &GLColor::green); |
| EXPECT_GL_NO_ERROR(); |
| |
| glDrawTexiOES(0, 0, 0, 1, 1); |
| EXPECT_GL_NO_ERROR(); |
| EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green); |
| } |
| |
| ANGLE_INSTANTIATE_TEST_ES1(DrawTextureTest); |