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chromium / angle / angle / 006891910a08f646d6d5f45842a557e6087ed9fe / . / src / tests / gl_tests / CopyTextureTest.cpp
blob: d15d94a8641567240faf01ad3d4c6cc9ef1e2bc1 [file] [log] [blame]
//
// Copyright 2016 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.
//
// CopyTextureTest.cpp: Tests of the GL_CHROMIUM_copy_texture extension
#include "test_utils/ANGLETest.h"
#include "test_utils/gl_raii.h"
namespace angle
{
class CopyTextureTest : public ANGLETest
{
protected:
CopyTextureTest()
{
setWindowWidth(256);
setWindowHeight(256);
setConfigRedBits(8);
setConfigGreenBits(8);
setConfigBlueBits(8);
setConfigAlphaBits(8);
}
void SetUp() override
{
ANGLETest::SetUp();
glGenTextures(2, mTextures);
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glGenFramebuffers(1, &mFramebuffer);
glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[1],
0);
if (extensionEnabled("GL_CHROMIUM_copy_texture"))
{
glCopyTextureCHROMIUM = reinterpret_cast<PFNGLCOPYTEXTURECHROMIUMPROC>(
eglGetProcAddress("glCopyTextureCHROMIUM"));
glCopySubTextureCHROMIUM = reinterpret_cast<PFNGLCOPYSUBTEXTURECHROMIUMPROC>(
eglGetProcAddress("glCopySubTextureCHROMIUM"));
}
}
void TearDown() override
{
glDeleteTextures(2, mTextures);
glDeleteFramebuffers(1, &mFramebuffer);
ANGLETest::TearDown();
}
bool checkExtensions() const
{
if (!extensionEnabled("GL_CHROMIUM_copy_texture"))
{
std::cout << "Test skipped because GL_CHROMIUM_copy_texture is not available."
<< std::endl;
return false;
}
EXPECT_NE(nullptr, glCopyTextureCHROMIUM);
EXPECT_NE(nullptr, glCopySubTextureCHROMIUM);
return true;
}
void testGradientDownsampleUniqueValues(GLenum destFormat,
GLenum destType,
const std::array<size_t, 4> &expectedUniqueValues)
{
std::array<GLColor, 256> sourceGradient;
for (size_t i = 0; i < sourceGradient.size(); i++)
{
GLubyte value = static_cast<GLubyte>(i);
sourceGradient[i] = GLColor(value, value, value, value);
}
GLTexture sourceTexture;
glBindTexture(GL_TEXTURE_2D, sourceTexture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 256, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE,
sourceGradient.data());
GLTexture destTexture;
glBindTexture(GL_TEXTURE_2D, destTexture);
glCopyTextureCHROMIUM(sourceTexture, 0, GL_TEXTURE_2D, destTexture, 0, destFormat, destType,
GL_FALSE, GL_FALSE, GL_FALSE);
EXPECT_GL_NO_ERROR();
GLFramebuffer fbo;
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, destTexture, 0);
std::array<GLColor, 256> destData;
glReadPixels(0, 0, 256, 1, GL_RGBA, GL_UNSIGNED_BYTE, destData.data());
EXPECT_GL_NO_ERROR();
std::set<GLubyte> uniqueValues[4];
for (size_t i = 0; i < destData.size(); i++)
{
GLColor color = destData[i];
uniqueValues[0].insert(color.R);
uniqueValues[1].insert(color.G);
uniqueValues[2].insert(color.B);
uniqueValues[3].insert(color.A);
}
EXPECT_EQ(expectedUniqueValues[0], uniqueValues[0].size());
EXPECT_EQ(expectedUniqueValues[1], uniqueValues[1].size());
EXPECT_EQ(expectedUniqueValues[2], uniqueValues[2].size());
EXPECT_EQ(expectedUniqueValues[3], uniqueValues[3].size());
}
GLuint mTextures[2] = {
0, 0,
};
GLuint mFramebuffer = 0;
PFNGLCOPYTEXTURECHROMIUMPROC glCopyTextureCHROMIUM = nullptr;
PFNGLCOPYSUBTEXTURECHROMIUMPROC glCopySubTextureCHROMIUM = nullptr;
};
class CopyTextureTestDest : public CopyTextureTest
{
};
class CopyTextureTestWebGL : public CopyTextureTest
{
protected:
CopyTextureTestWebGL() : CopyTextureTest() { setWebGLCompatibilityEnabled(true); }
};
class CopyTextureTestES3 : public CopyTextureTest
{
};
// Test to ensure that the basic functionality of the extension works.
TEST_P(CopyTextureTest, BasicCopyTexture)
{
if (!checkExtensions())
{
return;
}
GLColor pixels = GLColor::red;
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &pixels);
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
EXPECT_PIXEL_COLOR_EQ(0, 0, pixels);
}
// Test to ensure that the basic functionality of the extension works.
TEST_P(CopyTextureTest, BasicCopySubTexture)
{
if (!checkExtensions())
{
return;
}
GLColor pixels = GLColor::red;
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &pixels);
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 0, 0, 0, 0, 1, 1,
false, false, false);
EXPECT_GL_NO_ERROR();
// Check that FB is complete.
EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));
EXPECT_PIXEL_COLOR_EQ(0, 0, pixels);
EXPECT_GL_NO_ERROR();
}
// Test that CopyTexture cannot redefine an immutable texture and CopySubTexture can copy data to
// immutable textures
TEST_P(CopyTextureTest, ImmutableTexture)
{
if (!checkExtensions())
{
return;
}
ANGLE_SKIP_TEST_IF(
getClientMajorVersion() < 3 &&
(!extensionEnabled("GL_EXT_texture_storage") || !extensionEnabled("GL_OES_rgb8_rgba8")));
GLColor pixels = GLColor::red;
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexStorage2DEXT(GL_TEXTURE_2D, 1, GL_RGBA8_OES, 1, 1);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, &pixels);
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexStorage2DEXT(GL_TEXTURE_2D, 1, GL_RGBA8_OES, 1, 1);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[1], 0);
EXPECT_GL_NO_ERROR();
// Should generate an error when the texture is redefined
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_ERROR(GL_INVALID_OPERATION);
// Should succeed when using CopySubTexture
glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 0, 0, 0, 0, 1, 1,
false, false, false);
EXPECT_GL_NO_ERROR();
// Check that FB is complete.
EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));
EXPECT_PIXEL_COLOR_EQ(0, 0, pixels);
EXPECT_GL_NO_ERROR();
}
// Test validation of internal formats in CopyTexture and CopySubTexture
TEST_P(CopyTextureTest, InternalFormat)
{
if (!checkExtensions())
{
return;
}
std::vector<GLint> sourceFormats;
sourceFormats.push_back(GL_ALPHA);
sourceFormats.push_back(GL_RGB);
sourceFormats.push_back(GL_RGBA);
sourceFormats.push_back(GL_LUMINANCE);
sourceFormats.push_back(GL_LUMINANCE_ALPHA);
std::vector<GLint> destFormats;
destFormats.push_back(GL_RGB);
destFormats.push_back(GL_RGBA);
if (extensionEnabled("GL_EXT_texture_format_BGRA8888"))
{
sourceFormats.push_back(GL_BGRA_EXT);
destFormats.push_back(GL_BGRA_EXT);
}
// Test with glCopyTexture
for (GLint sourceFormat : sourceFormats)
{
for (GLint destFormat : destFormats)
{
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, sourceFormat, 1, 1, 0, sourceFormat, GL_UNSIGNED_BYTE,
nullptr);
EXPECT_GL_NO_ERROR();
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, destFormat,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
}
}
// Test with glCopySubTexture
for (GLint sourceFormat : sourceFormats)
{
for (GLint destFormat : destFormats)
{
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, sourceFormat, 1, 1, 0, sourceFormat, GL_UNSIGNED_BYTE,
nullptr);
EXPECT_GL_NO_ERROR();
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, destFormat, 1, 1, 0, destFormat, GL_UNSIGNED_BYTE,
nullptr);
EXPECT_GL_NO_ERROR();
glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 0, 0, 0, 0, 1,
1, false, false, false);
EXPECT_GL_NO_ERROR();
}
}
}
// Test to ensure that the destination texture is redefined if the properties are different.
TEST_P(CopyTextureTest, RedefineDestinationTexture)
{
ANGLE_SKIP_TEST_IF(!checkExtensions());
ANGLE_SKIP_TEST_IF(!extensionEnabled("GL_EXT_texture_format_BGRA8888"));
GLColor pixels[4] = {GLColor::red, GLColor::red, GLColor::red, GLColor::red};
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT, 1, 1, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, pixels);
EXPECT_GL_NO_ERROR();
// GL_INVALID_OPERATION due to "intrinsic format" != "internal format".
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
EXPECT_GL_ERROR(GL_INVALID_OPERATION);
// GL_INVALID_VALUE due to bad dimensions.
glTexSubImage2D(GL_TEXTURE_2D, 0, 1, 1, 1, 1, GL_BGRA_EXT, GL_UNSIGNED_BYTE, pixels);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
// If the dest texture has different properties, glCopyTextureCHROMIUM()
// redefines them.
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
// glTexSubImage2D() succeeds because mTextures[1] is redefined into 2x2
// dimension and GL_RGBA format.
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexSubImage2D(GL_TEXTURE_2D, 0, 1, 1, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
EXPECT_GL_NO_ERROR();
// Check that FB is complete.
EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));
EXPECT_PIXEL_COLOR_EQ(1, 1, pixels[3]);
EXPECT_GL_NO_ERROR();
}
// Test that invalid dimensions in CopySubTexture are validated
TEST_P(CopyTextureTest, CopySubTextureDimension)
{
if (!checkExtensions())
{
return;
}
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 3, 3, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 1, 1, 0, 0, 1, 1,
false, false, false);
EXPECT_GL_NO_ERROR();
// xoffset < 0
glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, -1, 1, 0, 0, 1, 1,
false, false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
// x < 0
glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 1, 1, -1, 0, 1, 1,
false, false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
// xoffset + width > dest_width
glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 2, 2, 0, 0, 2, 2,
false, false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
// x + width > source_width
glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 0, 0, 1, 1, 2, 2,
false, false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
}
// Test that invalid IDs in CopyTexture are validated
TEST_P(CopyTextureTest, CopyTextureInvalidTextureIds)
{
if (!checkExtensions())
{
return;
}
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 3, 3, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, 99993, 0, GL_RGBA, GL_UNSIGNED_BYTE,
false, false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
glCopyTextureCHROMIUM(99994, 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA, GL_UNSIGNED_BYTE,
false, false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
glCopyTextureCHROMIUM(99995, 0, GL_TEXTURE_2D, 99996, 0, GL_RGBA, GL_UNSIGNED_BYTE, false,
false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
}
// Test that invalid IDs in CopySubTexture are validated
TEST_P(CopyTextureTest, CopySubTextureInvalidTextureIds)
{
if (!checkExtensions())
{
return;
}
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 3, 3, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, 99993, 0, 1, 1, 0, 0, 1, 1, false,
false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
glCopySubTextureCHROMIUM(99994, 0, GL_TEXTURE_2D, mTextures[1], 0, 1, 1, 0, 0, 1, 1, false,
false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
glCopySubTextureCHROMIUM(99995, 0, GL_TEXTURE_2D, 99996, 0, 1, 1, 0, 0, 1, 1, false, false,
false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 1, 1, 0, 0, 1, 1,
false, false, false);
EXPECT_GL_NO_ERROR();
}
TEST_P(CopyTextureTest, InvalidTarget)
{
ANGLE_SKIP_TEST_IF(!checkExtensions());
GLTexture textures[2];
glBindTexture(GL_TEXTURE_2D, textures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glBindTexture(GL_TEXTURE_2D, textures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 3, 3, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
// Invalid enum for a completely invalid target
glCopySubTextureCHROMIUM(textures[0], 0, GL_INVALID_VALUE, textures[1], 0, 1, 1, 0, 0, 1, 1,
false, false, false);
EXPECT_GL_ERROR(GL_INVALID_ENUM);
// Invalid value for a valid target enum but is not valid for the destination texture
glCopySubTextureCHROMIUM(textures[0], 0, GL_TEXTURE_CUBE_MAP_POSITIVE_X, textures[1], 0, 1, 1,
0, 0, 1, 1, false, false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
}
// Test that using an offset in CopySubTexture works correctly
TEST_P(CopyTextureTest, CopySubTextureOffset)
{
if (!checkExtensions())
{
return;
}
GLColor rgbaPixels[4 * 4] = {GLColor::red, GLColor::green, GLColor::blue, GLColor::black};
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, rgbaPixels);
GLColor transparentPixels[4 * 4] = {GLColor::transparentBlack, GLColor::transparentBlack,
GLColor::transparentBlack, GLColor::transparentBlack};
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, transparentPixels);
glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 1, 1, 0, 0, 1, 1,
false, false, false);
EXPECT_GL_NO_ERROR();
glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 1, 0, 1, 0, 1, 1,
false, false, false);
EXPECT_GL_NO_ERROR();
glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 0, 1, 0, 1, 1, 1,
false, false, false);
EXPECT_GL_NO_ERROR();
// Check that FB is complete.
EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));
EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::transparentBlack);
EXPECT_PIXEL_COLOR_EQ(1, 1, GLColor::red);
EXPECT_PIXEL_COLOR_EQ(1, 0, GLColor::green);
EXPECT_PIXEL_COLOR_EQ(0, 1, GLColor::blue);
EXPECT_GL_NO_ERROR();
}
// Test that flipping the Y component works correctly
TEST_P(CopyTextureTest, FlipY)
{
if (!checkExtensions())
{
return;
}
GLColor rgbaPixels[4] = {GLColor(255u, 255u, 255u, 255u), GLColor(127u, 127u, 127u, 127u),
GLColor(63u, 63u, 63u, 127u), GLColor(255u, 255u, 255u, 0u)};
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, rgbaPixels);
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, GL_TRUE, GL_FALSE, GL_FALSE);
EXPECT_GL_NO_ERROR();
// Check that FB is complete.
EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));
EXPECT_PIXEL_COLOR_EQ(0, 0, rgbaPixels[2]);
EXPECT_PIXEL_COLOR_EQ(1, 0, rgbaPixels[3]);
EXPECT_PIXEL_COLOR_EQ(0, 1, rgbaPixels[0]);
EXPECT_PIXEL_COLOR_EQ(1, 1, rgbaPixels[1]);
EXPECT_GL_NO_ERROR();
}
// Test that premultipying the alpha on copy works correctly
TEST_P(CopyTextureTest, PremultiplyAlpha)
{
if (!checkExtensions())
{
return;
}
GLColor rgbaPixels[4] = {GLColor(255u, 255u, 255u, 255u), GLColor(255u, 255u, 255u, 127u),
GLColor(127u, 127u, 127u, 127u), GLColor(255u, 255u, 255u, 0u)};
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, rgbaPixels);
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, GL_FALSE, GL_TRUE, GL_FALSE);
EXPECT_GL_NO_ERROR();
// Check that FB is complete.
EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));
EXPECT_PIXEL_COLOR_NEAR(0, 0, GLColor(255, 255, 255, 255), 1.0);
EXPECT_PIXEL_COLOR_NEAR(1, 0, GLColor(127, 127, 127, 127), 1.0);
EXPECT_PIXEL_COLOR_NEAR(0, 1, GLColor(63, 63, 63, 127), 1.0);
EXPECT_PIXEL_COLOR_NEAR(1, 1, GLColor(0, 0, 0, 0), 1.0);
EXPECT_GL_NO_ERROR();
}
// Test that unmultipying the alpha on copy works correctly
TEST_P(CopyTextureTest, UnmultiplyAlpha)
{
if (!checkExtensions())
{
return;
}
GLColor rgbaPixels[4] = {GLColor(255u, 255u, 255u, 255u), GLColor(127u, 127u, 127u, 127u),
GLColor(63u, 63u, 63u, 127u), GLColor(255u, 255u, 255u, 0u)};
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, rgbaPixels);
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, GL_FALSE, GL_FALSE, GL_TRUE);
EXPECT_GL_NO_ERROR();
// Check that FB is complete.
EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));
EXPECT_PIXEL_COLOR_NEAR(0, 0, GLColor(255, 255, 255, 255), 1.0);
EXPECT_PIXEL_COLOR_NEAR(1, 0, GLColor(255, 255, 255, 127), 1.0);
EXPECT_PIXEL_COLOR_NEAR(0, 1, GLColor(127, 127, 127, 127), 1.0);
EXPECT_PIXEL_COLOR_NEAR(1, 1, GLColor(255, 255, 255, 0), 1.0);
EXPECT_GL_NO_ERROR();
}
// Test that unmultipying and premultiplying the alpha is the same as doing neither
TEST_P(CopyTextureTest, UnmultiplyAndPremultiplyAlpha)
{
if (!checkExtensions())
{
return;
}
GLColor rgbaPixels[4] = {GLColor(255u, 255u, 255u, 255u), GLColor(127u, 127u, 127u, 127u),
GLColor(63u, 63u, 63u, 127u), GLColor(255u, 255u, 255u, 0u)};
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, rgbaPixels);
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, GL_FALSE, GL_TRUE, GL_TRUE);
EXPECT_GL_NO_ERROR();
// Check that FB is complete.
EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));
EXPECT_PIXEL_COLOR_NEAR(0, 0, GLColor(255, 255, 255, 255), 1.0);
EXPECT_PIXEL_COLOR_NEAR(1, 0, GLColor(127, 127, 127, 127), 1.0);
EXPECT_PIXEL_COLOR_NEAR(0, 1, GLColor(63, 63, 63, 127), 1.0);
EXPECT_PIXEL_COLOR_NEAR(1, 1, GLColor(255, 255, 255, 0), 1.0);
EXPECT_GL_NO_ERROR();
}
// Test to ensure that CopyTexture works with LUMINANCE_ALPHA texture
TEST_P(CopyTextureTest, LuminanceAlpha)
{
if (!checkExtensions())
{
return;
}
uint8_t originalPixels[] = {163u, 67u};
GLColor expectedPixels(163u, 163u, 163u, 67u);
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE_ALPHA, 1, 1, 0, GL_LUMINANCE_ALPHA,
GL_UNSIGNED_BYTE, &originalPixels);
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}
// Test to ensure that CopyTexture works with LUMINANCE texture
TEST_P(CopyTextureTest, Luminance)
{
if (!checkExtensions())
{
return;
}
uint8_t originalPixels[] = {57u};
GLColor expectedPixels(57u, 57u, 57u, 255u);
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, 1, 1, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE,
&originalPixels);
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}
// Test to ensure that CopyTexture works with ALPHA texture
TEST_P(CopyTextureTest, Alpha)
{
if (!checkExtensions())
{
return;
}
uint8_t originalPixels[] = {77u};
GLColor expectedPixels(0u, 0u, 0u, 77u);
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, 1, 1, 0, GL_ALPHA, GL_UNSIGNED_BYTE, &originalPixels);
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}
// Test that copying to cube maps works
TEST_P(CopyTextureTest, CubeMapTarget)
{
if (!checkExtensions())
{
return;
}
GLColor pixels = GLColor::red;
GLTexture textures[2];
glBindTexture(GL_TEXTURE_2D, textures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &pixels);
glBindTexture(GL_TEXTURE_CUBE_MAP, textures[1]);
for (GLenum face = GL_TEXTURE_CUBE_MAP_POSITIVE_X; face <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
face++)
{
glTexImage2D(face, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
}
glCopySubTextureCHROMIUM(textures[0], 0, GL_TEXTURE_CUBE_MAP_POSITIVE_X, textures[1], 0, 0, 0,
0, 0, 1, 1, false, false, false);
EXPECT_GL_NO_ERROR();
GLFramebuffer fbo;
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_CUBE_MAP_POSITIVE_X,
textures[1], 0);
// Check that FB is complete.
EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));
EXPECT_PIXEL_COLOR_EQ(0, 0, pixels);
EXPECT_GL_NO_ERROR();
}
// Test that copying to non-zero mipmaps works
TEST_P(CopyTextureTest, CopyToMipmap)
{
if (!checkExtensions())
{
return;
}
ANGLE_SKIP_TEST_IF(getClientMajorVersion() < 3 &&
!extensionEnabled("GL_OES_fbo_render_mipmap"));
ANGLE_SKIP_TEST_IF(IsOSX() && IsIntel());
GLColor pixels[] = {GLColor::red, GLColor::red, GLColor::red, GLColor::red};
GLTexture textures[2];
glBindTexture(GL_TEXTURE_2D, textures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
glTexImage2D(GL_TEXTURE_2D, 1, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
glBindTexture(GL_TEXTURE_2D, textures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 4, 4, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glTexImage2D(GL_TEXTURE_2D, 1, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glTexImage2D(GL_TEXTURE_2D, 2, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
std::vector<std::pair<GLint, GLint>> soureDestPairs;
soureDestPairs.push_back(std::make_pair(0, 1));
// ES3 allows copying from non-zero mips
if (getClientMajorVersion() >= 3)
{
soureDestPairs.push_back(std::make_pair(1, 2));
}
for (const auto &sourceDestPair : soureDestPairs)
{
const GLint sourceLevel = sourceDestPair.first;
const GLint destLevel = sourceDestPair.second;
glCopyTextureCHROMIUM(textures[0], sourceLevel, GL_TEXTURE_2D, textures[1], destLevel,
GL_RGBA, GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
GLFramebuffer fbo;
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textures[1],
destLevel);
// Check that FB is complete.
EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));
EXPECT_PIXEL_COLOR_EQ(0, 0, pixels[0]);
EXPECT_GL_NO_ERROR();
}
}
// Test that copying from an RGBA8 texture to RGBA4 results in exactly 4-bit precision in the result
TEST_P(CopyTextureTest, DownsampleRGBA4444)
{
// Downsampling on copy is only guarenteed on D3D11
ANGLE_SKIP_TEST_IF(!IsD3D11());
GLTexture textures[2];
GLColor pixels[] = {GLColor(0, 5, 6, 7), GLColor(17, 22, 25, 24), GLColor(34, 35, 36, 36),
GLColor(51, 53, 55, 55)};
glBindTexture(GL_TEXTURE_2D, textures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
glBindTexture(GL_TEXTURE_2D, textures[1]);
glCopyTextureCHROMIUM(textures[0], 0, GL_TEXTURE_2D, textures[1], 0, GL_RGBA,
GL_UNSIGNED_SHORT_4_4_4_4, GL_FALSE, GL_FALSE, GL_FALSE);
GLFramebuffer fbo;
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textures[1], 0);
EXPECT_PIXEL_COLOR_NEAR(0, 0, GLColor(0, 0, 0, 0), 1.0);
EXPECT_PIXEL_COLOR_NEAR(1, 0, GLColor(17, 17, 17, 17), 1.0);
EXPECT_PIXEL_COLOR_NEAR(0, 1, GLColor(34, 34, 34, 34), 1.0);
EXPECT_PIXEL_COLOR_NEAR(1, 1, GLColor(51, 51, 51, 51), 1.0);
testGradientDownsampleUniqueValues(GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, {16, 16, 16, 16});
}
// Test that copying from an RGBA8 texture to RGB565 results in exactly 4-bit precision in the
// result
TEST_P(CopyTextureTest, DownsampleRGB565)
{
// Downsampling on copy is only guarenteed on D3D11
ANGLE_SKIP_TEST_IF(!IsD3D11());
GLTexture textures[2];
GLColor pixels[] = {GLColor(0, 5, 2, 14), GLColor(17, 22, 25, 30), GLColor(34, 33, 36, 46),
GLColor(50, 54, 49, 60)};
glBindTexture(GL_TEXTURE_2D, textures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
glBindTexture(GL_TEXTURE_2D, textures[1]);
glCopyTextureCHROMIUM(textures[0], 0, GL_TEXTURE_2D, textures[1], 0, GL_RGB,
GL_UNSIGNED_SHORT_5_6_5, GL_FALSE, GL_FALSE, GL_FALSE);
GLFramebuffer fbo;
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textures[1], 0);
EXPECT_PIXEL_COLOR_NEAR(0, 0, GLColor(0, 4, 0, 255), 1.0);
EXPECT_PIXEL_COLOR_NEAR(1, 0, GLColor(16, 20, 25, 255), 1.0);
EXPECT_PIXEL_COLOR_NEAR(0, 1, GLColor(33, 32, 33, 255), 1.0);
EXPECT_PIXEL_COLOR_NEAR(1, 1, GLColor(49, 53, 49, 255), 1.0);
testGradientDownsampleUniqueValues(GL_RGB, GL_UNSIGNED_SHORT_5_6_5, {32, 64, 32, 1});
}
// Test that copying from an RGBA8 texture to RGBA5551 results in exactly 4-bit precision in the
// result
TEST_P(CopyTextureTest, DownsampleRGBA5551)
{
// Downsampling on copy is only guarenteed on D3D11
ANGLE_SKIP_TEST_IF(!IsD3D11());
GLTexture textures[2];
GLColor pixels[] = {GLColor(0, 1, 2, 3), GLColor(14, 16, 17, 18), GLColor(33, 34, 36, 46),
GLColor(50, 51, 52, 255)};
glBindTexture(GL_TEXTURE_2D, textures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
glBindTexture(GL_TEXTURE_2D, textures[1]);
glCopyTextureCHROMIUM(textures[0], 0, GL_TEXTURE_2D, textures[1], 0, GL_RGBA,
GL_UNSIGNED_SHORT_5_5_5_1, GL_FALSE, GL_FALSE, GL_FALSE);
GLFramebuffer fbo;
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textures[1], 0);
EXPECT_PIXEL_COLOR_NEAR(0, 0, GLColor(0, 0, 0, 0), 1.0);
EXPECT_PIXEL_COLOR_NEAR(1, 0, GLColor(16, 16, 16, 0), 1.0);
EXPECT_PIXEL_COLOR_NEAR(0, 1, GLColor(33, 33, 33, 0), 1.0);
EXPECT_PIXEL_COLOR_NEAR(1, 1, GLColor(49, 49, 49, 255), 1.0);
testGradientDownsampleUniqueValues(GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, {32, 32, 32, 2});
}
// Test to ensure that CopyTexture works with LUMINANCE texture as a destination
TEST_P(CopyTextureTestDest, Luminance)
{
if (!checkExtensions())
{
return;
}
GLColor originalPixels(50u, 100u, 150u, 200u);
GLColor expectedPixels(50u, 50u, 50u, 255u);
// ReadPixels doesn't work with LUMINANCE (non-renderable), so we copy again back to an RGBA
// texture to verify contents.
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, 1, 1, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, nullptr);
glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_LUMINANCE,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}
// Test to ensure that CopyTexture works with LUMINANCE texture as a destination with
// UnpackPremultiply parameter
TEST_P(CopyTextureTestDest, LuminanceMultiply)
{
if (!checkExtensions())
{
return;
}
GLColor originalPixels(50u, 100u, 150u, 200u);
GLColor expectedPixels(39u, 39u, 39u, 255u);
// ReadPixels doesn't work with LUMINANCE (non-renderable), so we copy again back to an RGBA
// texture to verify contents.
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, 1, 1, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, nullptr);
glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_LUMINANCE,
GL_UNSIGNED_BYTE, false, true, false);
EXPECT_GL_NO_ERROR();
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}
// Test to ensure that CopyTexture works with LUMINANCE texture as a destination with
// UnpackUnmultiply parameter
TEST_P(CopyTextureTestDest, LuminanceUnmultiply)
{
if (!checkExtensions())
{
return;
}
GLColor originalPixels(50u, 100u, 150u, 200u);
GLColor expectedPixels(64u, 64u, 64u, 255u);
// ReadPixels doesn't work with LUMINANCE (non-renderable), so we copy again back to an RGBA
// texture to verify contents.
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, 1, 1, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, nullptr);
glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_LUMINANCE,
GL_UNSIGNED_BYTE, false, false, true);
EXPECT_GL_NO_ERROR();
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}
// Test to ensure that CopyTexture works with LUMINANCE_ALPHA texture as a destination
TEST_P(CopyTextureTestDest, LuminanceAlpha)
{
if (!checkExtensions())
{
return;
}
GLColor originalPixels(50u, 100u, 150u, 200u);
GLColor expectedPixels(50u, 50u, 50u, 200u);
// ReadPixels doesn't work with LUMINANCE_ALPHA (non-renderable), so we copy again back to an
// RGBA texture to verify contents.
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE_ALPHA, 1, 1, 0, GL_LUMINANCE_ALPHA,
GL_UNSIGNED_BYTE, nullptr);
glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_LUMINANCE_ALPHA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}
// Test to ensure that CopyTexture works with LUMINANCE_ALPHA texture as a destination with
// UnpackPremultiply parameter
TEST_P(CopyTextureTestDest, LuminanceAlphaMultiply)
{
if (!checkExtensions())
{
return;
}
GLColor originalPixels(50u, 100u, 150u, 200u);
GLColor expectedPixels(39u, 39u, 39u, 200u);
// ReadPixels doesn't work with LUMINANCE_ALPHA (non-renderable), so we copy again back to an
// RGBA texture to verify contents.
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE_ALPHA, 1, 1, 0, GL_LUMINANCE_ALPHA,
GL_UNSIGNED_BYTE, nullptr);
glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_LUMINANCE_ALPHA,
GL_UNSIGNED_BYTE, false, true, false);
EXPECT_GL_NO_ERROR();
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}
// Test to ensure that CopyTexture works with LUMINANCE_ALPHA texture as a destination with
// UnpackUnmultiplyAlpha parameter
TEST_P(CopyTextureTestDest, LuminanceAlphaUnmultiply)
{
if (!checkExtensions())
{
return;
}
GLColor originalPixels(50u, 100u, 150u, 200u);
GLColor expectedPixels(64u, 64u, 64u, 200u);
// ReadPixels doesn't work with LUMINANCE_ALPHA (non-renderable), so we copy again back to an
// RGBA texture to verify contents.
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE_ALPHA, 1, 1, 0, GL_LUMINANCE_ALPHA,
GL_UNSIGNED_BYTE, nullptr);
glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_LUMINANCE_ALPHA,
GL_UNSIGNED_BYTE, false, false, true);
EXPECT_GL_NO_ERROR();
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}
// Test to ensure that CopyTexture works with ALPHA texture as a destination
TEST_P(CopyTextureTestDest, Alpha)
{
if (!checkExtensions())
{
return;
}
GLColor originalPixels(50u, 100u, 150u, 155u);
GLColor expectedPixels(0u, 0u, 0u, 155u);
// ReadPixels doesn't work with ALPHA (non-renderable), so we copy again back to an RGBA
// texture to verify contents.
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, 1, 1, 0, GL_ALPHA, GL_UNSIGNED_BYTE, nullptr);
glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_ALPHA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}
// Test to ensure that CopyTexture works with ALPHA texture as a destination with
// UnpackPremultiplyAlpha parameter
TEST_P(CopyTextureTestDest, AlphaMultiply)
{
if (!checkExtensions())
{
return;
}
GLColor originalPixels(50u, 100u, 150u, 155u);
GLColor expectedPixels(0u, 0u, 0u, 155u);
// ReadPixels doesn't work with ALPHA (non-renderable), so we copy again back to an RGBA
// texture to verify contents.
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, 1, 1, 0, GL_ALPHA, GL_UNSIGNED_BYTE, nullptr);
glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_ALPHA,
GL_UNSIGNED_BYTE, false, true, false);
EXPECT_GL_NO_ERROR();
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}
// Test to ensure that CopyTexture works with ALPHA texture as a destination with
// UnpackUnmultiplyAlpha parameter
TEST_P(CopyTextureTestDest, AlphaUnmultiply)
{
if (!checkExtensions())
{
return;
}
GLColor originalPixels(50u, 100u, 150u, 155u);
GLColor expectedPixels(0u, 0u, 0u, 155u);
// ReadPixels doesn't work with ALPHA (non-renderable), so we copy again back to an RGBA
// texture to verify contents.
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, 1, 1, 0, GL_ALPHA, GL_UNSIGNED_BYTE, nullptr);
glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_ALPHA,
GL_UNSIGNED_BYTE, false, false, true);
EXPECT_GL_NO_ERROR();
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}
// Test to ensure that CopyTexture uses the correct ALPHA passthrough shader to ensure RGB channels
// are set to 0.
TEST_P(CopyTextureTestDest, AlphaCopyWithRGB)
{
ANGLE_SKIP_TEST_IF(!checkExtensions());
GLColor originalPixels(50u, 100u, 150u, 155u);
GLColor expectedPixels(0u, 0u, 0u, 155u);
// ReadPixels doesn't work with ALPHA (non-renderable), so we copy again back to an RGBA
// texture to verify contents.
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, 1, 1, 0, GL_ALPHA, GL_HALF_FLOAT_OES, nullptr);
glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_ALPHA,
GL_HALF_FLOAT_OES, false, false, false);
EXPECT_GL_NO_ERROR();
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}
// Test to ensure that CopyTexture will fail with a non-zero level and NPOT texture in WebGL
TEST_P(CopyTextureTestWebGL, NPOT)
{
if (extensionRequestable("GL_CHROMIUM_copy_texture"))
{
glRequestExtensionANGLE("GL_CHROMIUM_copy_texture");
}
ANGLE_SKIP_TEST_IF(!extensionEnabled("GL_CHROMIUM_copy_texture"));
std::vector<GLColor> pixelData(10 * 10, GLColor::red);
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 10, 10, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixelData.data());
// Do a basic copy to make sure things work
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_NO_ERROR();
EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red);
// Do the same operation with destLevel 1, which should fail
glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 1, GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
}
// Test the newly added ES3 unorm formats
TEST_P(CopyTextureTestES3, ES3UnormFormats)
{
if (!checkExtensions())
{
return;
}
auto testOutput = [this](GLuint texture, const GLColor &expectedColor) {
const std::string vs =
"#version 300 es\n"
"in vec4 position;\n"
"out vec2 texcoord;\n"
"void main()\n"
"{\n"
" gl_Position = vec4(position.xy, 0.0, 1.0);\n"
" texcoord = (position.xy * 0.5) + 0.5;\n"
"}\n";
const std::string fs =
"#version 300 es\n"
"precision mediump float;\n"
"uniform sampler2D tex;\n"
"in vec2 texcoord;\n"
"out vec4 color;\n"
"void main()\n"
"{\n"
" color = texture(tex, texcoord);\n"
"}\n";
ANGLE_GL_PROGRAM(program, vs, fs);
glUseProgram(program);
GLRenderbuffer rbo;
glBindRenderbuffer(GL_RENDERBUFFER, rbo);
glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, 1, 1);
GLFramebuffer fbo;
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rbo);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glUniform1i(glGetUniformLocation(program.get(), "tex"), 0);
drawQuad(program, "position", 0.5f, 1.0f, true);
EXPECT_PIXEL_COLOR_NEAR(0, 0, expectedColor, 1.0);
};
auto testCopyCombination = [this, testOutput](GLenum sourceInternalFormat, GLenum sourceFormat,
GLenum sourceType, const GLColor &sourceColor,
GLenum destInternalFormat, GLenum destType,
bool flipY, bool premultiplyAlpha,
bool unmultiplyAlpha,
const GLColor &expectedColor) {
GLTexture sourceTexture;
glBindTexture(GL_TEXTURE_2D, sourceTexture);
glTexImage2D(GL_TEXTURE_2D, 0, sourceInternalFormat, 1, 1, 0, sourceFormat, sourceType,
&sourceColor);
GLTexture destTexture;
glBindTexture(GL_TEXTURE_2D, destTexture);
glCopyTextureCHROMIUM(sourceTexture, 0, GL_TEXTURE_2D, destTexture, 0, destInternalFormat,
destType, flipY, premultiplyAlpha, unmultiplyAlpha);
ASSERT_GL_NO_ERROR();
testOutput(destTexture, expectedColor);
};
auto testSubCopyCombination = [this, testOutput](
GLenum sourceInternalFormat, GLenum sourceFormat,
GLenum sourceType, const GLColor &sourceColor,
GLenum destInternalFormat, GLenum destFormat, GLenum destType,
bool flipY, bool premultiplyAlpha, bool unmultiplyAlpha,
const GLColor &expectedColor) {
GLTexture sourceTexture;
glBindTexture(GL_TEXTURE_2D, sourceTexture);
glTexImage2D(GL_TEXTURE_2D, 0, sourceInternalFormat, 1, 1, 0, sourceFormat, sourceType,
&sourceColor);
GLTexture destTexture;
glBindTexture(GL_TEXTURE_2D, destTexture);
glTexImage2D(GL_TEXTURE_2D, 0, destInternalFormat, 1, 1, 0, destFormat, destType, nullptr);
glCopySubTextureCHROMIUM(sourceTexture, 0, GL_TEXTURE_2D, destTexture, 0, 0, 0, 0, 0, 1, 1,
flipY, premultiplyAlpha, unmultiplyAlpha);
ASSERT_GL_NO_ERROR();
testOutput(destTexture, expectedColor);
};
// New LUMA source formats
testCopyCombination(GL_LUMINANCE, GL_LUMINANCE, GL_UNSIGNED_BYTE, GLColor(128, 0, 0, 0), GL_RGB,
GL_UNSIGNED_BYTE, false, false, false, GLColor(128, 128, 128, 255));
testCopyCombination(GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE,
GLColor(128, 64, 0, 0), GL_RGB, GL_UNSIGNED_BYTE, false, false, false,
GLColor(128, 128, 128, 255));
testCopyCombination(GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE,
GLColor(128, 64, 0, 0), GL_RGB, GL_UNSIGNED_BYTE, false, true, false,
GLColor(32, 32, 32, 255));
testCopyCombination(GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE,
GLColor(128, 128, 0, 0), GL_RGB, GL_UNSIGNED_BYTE, false, false, true,
GLColor(255, 255, 255, 255));
testCopyCombination(GL_ALPHA, GL_ALPHA, GL_UNSIGNED_BYTE, GLColor(128, 0, 0, 0), GL_RGBA,
GL_UNSIGNED_BYTE, false, false, false, GLColor(0, 0, 0, 128));
testCopyCombination(GL_ALPHA, GL_ALPHA, GL_UNSIGNED_BYTE, GLColor(128, 0, 0, 0), GL_RGBA,
GL_UNSIGNED_BYTE, false, false, true, GLColor(0, 0, 0, 128));
testCopyCombination(GL_ALPHA, GL_ALPHA, GL_UNSIGNED_BYTE, GLColor(128, 0, 0, 0), GL_RGBA,
GL_UNSIGNED_BYTE, false, true, false, GLColor(0, 0, 0, 128));
// New sRGB dest formats
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_SRGB,
GL_UNSIGNED_BYTE, false, false, false, GLColor(55, 13, 4, 255));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_SRGB,
GL_UNSIGNED_BYTE, false, true, false, GLColor(13, 4, 1, 255));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128),
GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE, false, false, false,
GLColor(55, 13, 4, 128));
testSubCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_SRGB,
GL_SRGB, GL_UNSIGNED_BYTE, false, false, false, GLColor(55, 13, 4, 255));
testSubCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_SRGB,
GL_SRGB, GL_UNSIGNED_BYTE, false, true, false, GLColor(13, 4, 1, 255));
testSubCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128),
GL_SRGB_ALPHA_EXT, GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE, false, false,
false, GLColor(55, 13, 4, 128));
}
// Test the newly added ES3 float formats
TEST_P(CopyTextureTestES3, ES3FloatFormats)
{
ANGLE_SKIP_TEST_IF(IsIntel() && IsWindows() && IsOpenGL());
if (!checkExtensions())
{
return;
}
ANGLE_SKIP_TEST_IF(!extensionEnabled("GL_EXT_color_buffer_float"));
auto testOutput = [this](GLuint texture, const GLColor32F &expectedColor) {
const std::string vs =
"#version 300 es\n"
"in vec4 position;\n"
"out vec2 texcoord;\n"
"void main()\n"
"{\n"
" gl_Position = vec4(position.xy, 0.0, 1.0);\n"
" texcoord = (position.xy * 0.5) + 0.5;\n"
"}\n";
const std::string fs =
"#version 300 es\n"
"precision mediump float;\n"
"uniform sampler2D tex;\n"
"in vec2 texcoord;\n"
"out vec4 color;\n"
"void main()\n"
"{\n"
" color = texture(tex, texcoord);\n"
"}\n";
ANGLE_GL_PROGRAM(program, vs, fs);
glUseProgram(program);
GLRenderbuffer rbo;
glBindRenderbuffer(GL_RENDERBUFFER, rbo);
glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA32F, 1, 1);
GLFramebuffer fbo;
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rbo);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glUniform1i(glGetUniformLocation(program.get(), "tex"), 0);
drawQuad(program, "position", 0.5f, 1.0f, true);
EXPECT_PIXEL_COLOR32F_NEAR(0, 0, expectedColor, 0.05);
};
auto testCopyCombination = [this, testOutput](GLenum sourceInternalFormat, GLenum sourceFormat,
GLenum sourceType, const GLColor &sourceColor,
GLenum destInternalFormat, GLenum destType,
bool flipY, bool premultiplyAlpha,
bool unmultiplyAlpha,
const GLColor32F &expectedColor) {
GLTexture sourceTexture;
glBindTexture(GL_TEXTURE_2D, sourceTexture);
glTexImage2D(GL_TEXTURE_2D, 0, sourceInternalFormat, 1, 1, 0, sourceFormat, sourceType,
&sourceColor);
GLTexture destTexture;
glBindTexture(GL_TEXTURE_2D, destTexture);
glCopyTextureCHROMIUM(sourceTexture, 0, GL_TEXTURE_2D, destTexture, 0, destInternalFormat,
destType, flipY, premultiplyAlpha, unmultiplyAlpha);
ASSERT_GL_NO_ERROR();
testOutput(destTexture, expectedColor);
};
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGBA32F,
GL_FLOAT, false, false, false, GLColor32F(0.5f, 0.25f, 0.125f, 0.5f));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGBA32F,
GL_FLOAT, false, true, false, GLColor32F(0.25f, 0.125f, 0.0625f, 0.5f));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGBA32F,
GL_FLOAT, false, false, true, GLColor32F(1.0f, 0.5f, 0.25f, 0.5f));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_R16F,
GL_FLOAT, false, false, false, GLColor32F(0.5f, 0.0f, 0.0f, 1.0f));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_R16F,
GL_FLOAT, false, true, false, GLColor32F(0.25f, 0.0f, 0.0f, 1.0f));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_R16F,
GL_FLOAT, false, false, true, GLColor32F(1.0f, 0.0f, 0.0f, 1.0f));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RG16F,
GL_FLOAT, false, false, false, GLColor32F(0.5f, 0.25f, 0.0f, 1.0f));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RG16F,
GL_FLOAT, false, true, false, GLColor32F(0.25f, 0.125f, 0.0f, 1.0f));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RG16F,
GL_FLOAT, false, false, true, GLColor32F(1.0f, 0.5f, 0.0f, 1.0f));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB16F,
GL_FLOAT, false, false, false, GLColor32F(0.5f, 0.25f, 0.125f, 1.0f));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB16F,
GL_FLOAT, false, true, false, GLColor32F(0.25f, 0.125f, 0.0625f, 1.0f));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB16F,
GL_FLOAT, false, false, true, GLColor32F(1.0f, 0.5f, 0.25f, 1.0f));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128),
GL_R11F_G11F_B10F, GL_FLOAT, false, false, false,
GLColor32F(0.5f, 0.25f, 0.125f, 1.0f));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128),
GL_R11F_G11F_B10F, GL_FLOAT, false, true, false,
GLColor32F(0.25f, 0.125f, 0.0625f, 1.0f));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128),
GL_R11F_G11F_B10F, GL_FLOAT, false, false, true,
GLColor32F(1.0f, 0.5f, 0.25f, 1.0f));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB9_E5,
GL_FLOAT, false, false, false, GLColor32F(0.5f, 0.25f, 0.125f, 1.0f));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB9_E5,
GL_FLOAT, false, true, false, GLColor32F(0.25f, 0.125f, 0.0625f, 1.0f));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB9_E5,
GL_FLOAT, false, false, true, GLColor32F(1.0f, 0.5f, 0.25f, 1.0f));
}
// Test the newly added ES3 unsigned integer formats
TEST_P(CopyTextureTestES3, ES3UintFormats)
{
ANGLE_SKIP_TEST_IF(IsLinux() && IsOpenGL() && IsIntel());
if (!checkExtensions())
{
return;
}
using GLColor32U = std::tuple<GLuint, GLuint, GLuint, GLuint>;
auto testOutput = [this](GLuint texture, const GLColor32U &expectedColor) {
const std::string vs =
"#version 300 es\n"
"in vec4 position;\n"
"out vec2 texcoord;\n"
"void main()\n"
"{\n"
" gl_Position = vec4(position.xy, 0.0, 1.0);\n"
" texcoord = (position.xy * 0.5) + 0.5;\n"
"}\n";
std::string fs =
"#version 300 es\n"
"precision mediump float;\n"
"precision mediump usampler2D;\n"
"in vec2 texcoord;\n"
"uniform usampler2D tex;\n"
"out uvec4 color;\n"
"void main()\n"
"{\n"
" color = texture(tex, texcoord);\n"
"}\n";
ANGLE_GL_PROGRAM(program, vs, fs);
glUseProgram(program);
GLRenderbuffer rbo;
glBindRenderbuffer(GL_RENDERBUFFER, rbo);
glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8UI, 1, 1);
GLFramebuffer fbo;
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rbo);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glUniform1i(glGetUniformLocation(program.get(), "tex"), 0);
drawQuad(program, "position", 0.5f, 1.0f, true);
ASSERT_GL_NO_ERROR();
GLuint pixel[4] = {0};
glReadPixels(0, 0, 1, 1, GL_RGBA_INTEGER, GL_UNSIGNED_INT, pixel);
ASSERT_GL_NO_ERROR();
EXPECT_NEAR(std::get<0>(expectedColor), pixel[0], 1);
EXPECT_NEAR(std::get<1>(expectedColor), pixel[1], 1);
EXPECT_NEAR(std::get<2>(expectedColor), pixel[2], 1);
EXPECT_NEAR(std::get<3>(expectedColor), pixel[3], 1);
};
auto testCopyCombination = [this, testOutput](GLenum sourceInternalFormat, GLenum sourceFormat,
GLenum sourceType, const GLColor &sourceColor,
GLenum destInternalFormat, GLenum destType,
bool flipY, bool premultiplyAlpha,
bool unmultiplyAlpha,
const GLColor32U &expectedColor) {
GLTexture sourceTexture;
glBindTexture(GL_TEXTURE_2D, sourceTexture);
glTexImage2D(GL_TEXTURE_2D, 0, sourceInternalFormat, 1, 1, 0, sourceFormat, sourceType,
&sourceColor);
GLTexture destTexture;
glBindTexture(GL_TEXTURE_2D, destTexture);
glCopyTextureCHROMIUM(sourceTexture, 0, GL_TEXTURE_2D, destTexture, 0, destInternalFormat,
destType, flipY, premultiplyAlpha, unmultiplyAlpha);
ASSERT_GL_NO_ERROR();
testOutput(destTexture, expectedColor);
};
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGBA8UI,
GL_UNSIGNED_BYTE, false, false, false, GLColor32U(128, 64, 32, 128));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGBA8UI,
GL_UNSIGNED_BYTE, false, true, false, GLColor32U(64, 32, 16, 128));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGBA8UI,
GL_UNSIGNED_BYTE, false, false, true, GLColor32U(255, 128, 64, 128));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB8UI,
GL_UNSIGNED_BYTE, false, false, false, GLColor32U(128, 64, 32, 1));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB8UI,
GL_UNSIGNED_BYTE, false, true, false, GLColor32U(64, 32, 16, 1));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB8UI,
GL_UNSIGNED_BYTE, false, false, true, GLColor32U(255, 128, 64, 1));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RG8UI,
GL_UNSIGNED_BYTE, false, false, false, GLColor32U(128, 64, 0, 1));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RG8UI,
GL_UNSIGNED_BYTE, false, true, false, GLColor32U(64, 32, 0, 1));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RG8UI,
GL_UNSIGNED_BYTE, false, false, true, GLColor32U(255, 128, 0, 1));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_R8UI,
GL_UNSIGNED_BYTE, false, false, false, GLColor32U(128, 0, 0, 1));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_R8UI,
GL_UNSIGNED_BYTE, false, true, false, GLColor32U(64, 0, 0, 1));
testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(120, 64, 32, 128), GL_R8UI,
GL_UNSIGNED_BYTE, false, false, true, GLColor32U(240, 0, 0, 1));
}
// Use this to select which configurations (e.g. which renderer, which GLES major version) these
// tests should be run against.
ANGLE_INSTANTIATE_TEST(CopyTextureTest, ES2_D3D9(), ES2_D3D11(), ES2_OPENGL(), ES2_OPENGLES());
ANGLE_INSTANTIATE_TEST(CopyTextureTestWebGL, ES2_D3D9(), ES2_D3D11(), ES2_OPENGL(), ES2_OPENGLES());
ANGLE_INSTANTIATE_TEST(CopyTextureTestDest, ES2_D3D11());
ANGLE_INSTANTIATE_TEST(CopyTextureTestES3, ES3_D3D11(), ES3_OPENGL(), ES3_OPENGLES());
} // namespace angle