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//
// 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.
//
// ETCTextureTest:
// Tests for ETC lossy decode formats.
//
#include "test_utils/ANGLETest.h"
using namespace angle;
namespace
{
class ETCTextureTest : public ANGLETest
{
protected:
ETCTextureTest() : mTexture(0u)
{
setWindowWidth(128);
setWindowHeight(128);
setConfigRedBits(8);
setConfigGreenBits(8);
setConfigBlueBits(8);
setConfigAlphaBits(8);
}
void testSetUp() override
{
glGenTextures(1, &mTexture);
ASSERT_GL_NO_ERROR();
}
void testTearDown() override { glDeleteTextures(1, &mTexture); }
GLuint mTexture;
};
// Tests a texture with ETC1 lossy decode format
TEST_P(ETCTextureTest, ETC1Validation)
{
bool supported = IsGLExtensionEnabled("GL_ANGLE_lossy_etc_decode");
glBindTexture(GL_TEXTURE_2D, mTexture);
GLubyte pixel[8] = {0x0, 0x0, 0xf8, 0x2, 0x43, 0xff, 0x4, 0x12};
glCompressedTexImage2D(GL_TEXTURE_2D, 0, GL_ETC1_RGB8_LOSSY_DECODE_ANGLE, 4, 4, 0,
sizeof(pixel), pixel);
if (supported)
{
EXPECT_GL_NO_ERROR();
glCompressedTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 4, 4, GL_ETC1_RGB8_LOSSY_DECODE_ANGLE,
sizeof(pixel), pixel);
EXPECT_GL_NO_ERROR();
glCompressedTexImage2D(GL_TEXTURE_2D, 1, GL_ETC1_RGB8_LOSSY_DECODE_ANGLE, 2, 2, 0,
sizeof(pixel), pixel);
EXPECT_GL_NO_ERROR();
glCompressedTexImage2D(GL_TEXTURE_2D, 2, GL_ETC1_RGB8_LOSSY_DECODE_ANGLE, 1, 1, 0,
sizeof(pixel), pixel);
EXPECT_GL_NO_ERROR();
}
else
{
EXPECT_GL_ERROR(GL_INVALID_ENUM);
}
}
// Tests a texture with ETC2 RGB8 lossy decode format
TEST_P(ETCTextureTest, ETC2RGB8Validation)
{
bool supported = IsGLExtensionEnabled("GL_ANGLE_lossy_etc_decode");
glBindTexture(GL_TEXTURE_2D, mTexture);
GLubyte pixel[] = {
0x00, 0x00, 0xf8, 0x02, 0x43, 0xff, 0x04, 0x12, // Individual/differential block
0x1c, 0x65, 0xc6, 0x62, 0xff, 0xf0, 0xff, 0x00, // T block
0x62, 0xf2, 0xe3, 0x32, 0xff, 0x0f, 0xff, 0x00, // H block
0x71, 0x88, 0xfb, 0xee, 0x87, 0x07, 0x11, 0x1f // Planar block
};
glCompressedTexImage2D(GL_TEXTURE_2D, 0, GL_COMPRESSED_RGB8_LOSSY_DECODE_ETC2_ANGLE, 8, 8, 0,
sizeof(pixel), pixel);
if (supported)
{
EXPECT_GL_NO_ERROR();
glCompressedTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 8, 8,
GL_COMPRESSED_RGB8_LOSSY_DECODE_ETC2_ANGLE, sizeof(pixel), pixel);
EXPECT_GL_NO_ERROR();
const GLsizei imageSize = 8;
glCompressedTexImage2D(GL_TEXTURE_2D, 1, GL_COMPRESSED_RGB8_LOSSY_DECODE_ETC2_ANGLE, 4, 4,
0, imageSize, pixel);
EXPECT_GL_NO_ERROR();
glCompressedTexImage2D(GL_TEXTURE_2D, 2, GL_COMPRESSED_RGB8_LOSSY_DECODE_ETC2_ANGLE, 2, 2,
0, imageSize, pixel);
EXPECT_GL_NO_ERROR();
glCompressedTexImage2D(GL_TEXTURE_2D, 3, GL_COMPRESSED_RGB8_LOSSY_DECODE_ETC2_ANGLE, 1, 1,
0, imageSize, pixel);
EXPECT_GL_NO_ERROR();
}
else
{
EXPECT_GL_ERROR(GL_INVALID_ENUM);
}
}
// Tests a texture with ETC2 SRGB8 lossy decode format
TEST_P(ETCTextureTest, ETC2SRGB8Validation)
{
bool supported = IsGLExtensionEnabled("GL_ANGLE_lossy_etc_decode");
glBindTexture(GL_TEXTURE_2D, mTexture);
GLubyte pixel[] = {
0x00, 0x00, 0xf8, 0x02, 0x43, 0xff, 0x04, 0x12, // Individual/differential block
0x1c, 0x65, 0xc6, 0x62, 0xff, 0xf0, 0xff, 0x00, // T block
0x62, 0xf2, 0xe3, 0x32, 0xff, 0x0f, 0xff, 0x00, // H block
0x71, 0x88, 0xfb, 0xee, 0x87, 0x07, 0x11, 0x1f // Planar block
};
glCompressedTexImage2D(GL_TEXTURE_2D, 0, GL_COMPRESSED_SRGB8_LOSSY_DECODE_ETC2_ANGLE, 8, 8, 0,
sizeof(pixel), pixel);
if (supported)
{
EXPECT_GL_NO_ERROR();
glCompressedTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 8, 8,
GL_COMPRESSED_SRGB8_LOSSY_DECODE_ETC2_ANGLE, sizeof(pixel),
pixel);
EXPECT_GL_NO_ERROR();
const GLsizei imageSize = 8;
glCompressedTexImage2D(GL_TEXTURE_2D, 1, GL_COMPRESSED_SRGB8_LOSSY_DECODE_ETC2_ANGLE, 4, 4,
0, imageSize, pixel);
EXPECT_GL_NO_ERROR();
glCompressedTexImage2D(GL_TEXTURE_2D, 2, GL_COMPRESSED_SRGB8_LOSSY_DECODE_ETC2_ANGLE, 2, 2,
0, imageSize, pixel);
EXPECT_GL_NO_ERROR();
glCompressedTexImage2D(GL_TEXTURE_2D, 3, GL_COMPRESSED_SRGB8_LOSSY_DECODE_ETC2_ANGLE, 1, 1,
0, imageSize, pixel);
EXPECT_GL_NO_ERROR();
}
else
{
EXPECT_GL_ERROR(GL_INVALID_ENUM);
}
}
// Tests a texture with ETC2 RGB8 punchthrough A1 lossy decode format
TEST_P(ETCTextureTest, ETC2RGB8A1Validation)
{
bool supported = IsGLExtensionEnabled("GL_ANGLE_lossy_etc_decode");
glBindTexture(GL_TEXTURE_2D, mTexture);
GLubyte pixel[] = {
0x80, 0x98, 0x59, 0x02, 0x6e, 0xe7, 0x44, 0x47, // Individual/differential block
0xeb, 0x85, 0x68, 0x30, 0x77, 0x73, 0x44, 0x44, // T block
0xb4, 0x05, 0xab, 0x92, 0xf8, 0x8c, 0x07, 0x73, // H block
0xbb, 0x90, 0x15, 0xba, 0x8a, 0x8c, 0xd5, 0x5f // Planar block
};
glCompressedTexImage2D(GL_TEXTURE_2D, 0,
GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE, 8, 8, 0,
sizeof(pixel), pixel);
if (supported)
{
EXPECT_GL_NO_ERROR();
glCompressedTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 8, 8,
GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE,
sizeof(pixel), pixel);
EXPECT_GL_NO_ERROR();
const GLsizei imageSize = 8;
glCompressedTexImage2D(GL_TEXTURE_2D, 1,
GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE, 4, 4,
0, imageSize, pixel);
EXPECT_GL_NO_ERROR();
glCompressedTexImage2D(GL_TEXTURE_2D, 2,
GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE, 2, 2,
0, imageSize, pixel);
EXPECT_GL_NO_ERROR();
glCompressedTexImage2D(GL_TEXTURE_2D, 3,
GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE, 1, 1,
0, imageSize, pixel);
EXPECT_GL_NO_ERROR();
}
else
{
EXPECT_GL_ERROR(GL_INVALID_ENUM);
}
}
// Tests a texture with ETC2 SRGB8 punchthrough A1 lossy decode format
TEST_P(ETCTextureTest, ETC2SRGB8A1Validation)
{
bool supported = IsGLExtensionEnabled("GL_ANGLE_lossy_etc_decode");
glBindTexture(GL_TEXTURE_2D, mTexture);
GLubyte pixel[] = {
0x80, 0x98, 0x59, 0x02, 0x6e, 0xe7, 0x44, 0x47, // Individual/differential block
0xeb, 0x85, 0x68, 0x30, 0x77, 0x73, 0x44, 0x44, // T block
0xb4, 0x05, 0xab, 0x92, 0xf8, 0x8c, 0x07, 0x73, // H block
0xbb, 0x90, 0x15, 0xba, 0x8a, 0x8c, 0xd5, 0x5f // Planar block
};
glCompressedTexImage2D(GL_TEXTURE_2D, 0,
GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE, 8, 8, 0,
sizeof(pixel), pixel);
if (supported)
{
EXPECT_GL_NO_ERROR();
glCompressedTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 8, 8,
GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE,
sizeof(pixel), pixel);
EXPECT_GL_NO_ERROR();
const GLsizei imageSize = 8;
glCompressedTexImage2D(GL_TEXTURE_2D, 1,
GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE, 4,
4, 0, imageSize, pixel);
EXPECT_GL_NO_ERROR();
glCompressedTexImage2D(GL_TEXTURE_2D, 2,
GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE, 2,
2, 0, imageSize, pixel);
EXPECT_GL_NO_ERROR();
glCompressedTexImage2D(GL_TEXTURE_2D, 3,
GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE, 1,
1, 0, imageSize, pixel);
EXPECT_GL_NO_ERROR();
}
else
{
EXPECT_GL_ERROR(GL_INVALID_ENUM);
}
}
ANGLE_INSTANTIATE_TEST(ETCTextureTest,
ES2_D3D9(),
ES2_D3D11(),
ES3_D3D11(),
ES2_OPENGL(),
ES3_OPENGL(),
ES2_VULKAN());
} // anonymous namespace