CompressedTextureTest.cpp

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Author : Geoff Lang
Date : 2014-04-28 10:08:27
Hash : a836e48a
Message : Allow non-4x4 compressed blocks for small mip layers. CompressedTexSubImage would disallow 1x1 or 2x2 mips being set for any mip level except 0. This made it impossible to set the data in the lowest mip levels. BUG=angle:623 Change-Id: I623414ae4fd5d6b051579285160296b03fd36486 Reviewed-on: https://chromium-review.googlesource.com/197250 Reviewed-by: Shannon Woods <shannonwoods@chromium.org> Reviewed-by: Nicolas Capens <nicolascapens@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org> (cherry picked from commit cc84a853eb5ab63a744657da704f84905565ab9e) Reviewed-on: https://chromium-review.googlesource.com/197654

tests/angle_tests/CompressedTextureTest.cpp

#include "ANGLETest.h"
#include "media/pixel.inl"

class CompressedTextureTest : public ANGLETest
{
protected:
    CompressedTextureTest()
    {
        setWindowWidth(512);
        setWindowHeight(512);
        setConfigRedBits(8);
        setConfigGreenBits(8);
        setConfigBlueBits(8);
        setConfigAlphaBits(8);
    }

    virtual void SetUp()
    {
        ANGLETest::SetUp();

        const std::string vsSource = SHADER_SOURCE
        (
            precision highp float;
            attribute vec4 position;
            varying vec2 texcoord;

            void main()
            {
                gl_Position = position;
                texcoord = (position.xy * 0.5) + 0.5;
                texcoord.y = 1.0 - texcoord.y;
            }
        );

        const std::string textureFSSource = SHADER_SOURCE
        (
            precision highp float;
            uniform sampler2D tex;
            varying vec2 texcoord;

            void main()
            {
                gl_FragColor = texture2D(tex, texcoord);
            }
        );

        mTextureProgram = compileProgram(vsSource, textureFSSource);
        if (mTextureProgram == 0)
        {
            FAIL() << "shader compilation failed.";
        }

        mTextureUniformLocation = glGetUniformLocation(mTextureProgram, "tex");

        ASSERT_GL_NO_ERROR();
    }

    virtual void TearDown()
    {
        glDeleteProgram(mTextureProgram);

        ANGLETest::TearDown();
    }

    GLuint mTextureProgram;
    GLint mTextureUniformLocation;
};

TEST_F(CompressedTextureTest, compressed_tex_image)
{
    if (getClientVersion() < 3 && !extensionEnabled("GL_EXT_texture_compression_dxt1"))
    {
        return;
    }

    GLuint texture;
    glGenTextures(1, &texture);
    glBindTexture(GL_TEXTURE_2D, texture);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_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);

    glCompressedTexImage2D(GL_TEXTURE_2D, 0, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_0_width, pixel_0_height, 0, pixel_0_size, pixel_0_data);
    glCompressedTexImage2D(GL_TEXTURE_2D, 1, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_1_width, pixel_1_height, 0, pixel_1_size, pixel_1_data);
    glCompressedTexImage2D(GL_TEXTURE_2D, 2, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_2_width, pixel_2_height, 0, pixel_2_size, pixel_2_data);
    glCompressedTexImage2D(GL_TEXTURE_2D, 3, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_3_width, pixel_3_height, 0, pixel_3_size, pixel_3_data);
    glCompressedTexImage2D(GL_TEXTURE_2D, 4, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_4_width, pixel_4_height, 0, pixel_4_size, pixel_4_data);
    glCompressedTexImage2D(GL_TEXTURE_2D, 5, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_5_width, pixel_5_height, 0, pixel_5_size, pixel_5_data);
    glCompressedTexImage2D(GL_TEXTURE_2D, 6, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_6_width, pixel_6_height, 0, pixel_6_size, pixel_6_data);
    glCompressedTexImage2D(GL_TEXTURE_2D, 7, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_7_width, pixel_7_height, 0, pixel_7_size, pixel_7_data);
    glCompressedTexImage2D(GL_TEXTURE_2D, 8, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_8_width, pixel_8_height, 0, pixel_8_size, pixel_8_data);
    glCompressedTexImage2D(GL_TEXTURE_2D, 9, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_9_width, pixel_9_height, 0, pixel_9_size, pixel_9_data);

    EXPECT_GL_NO_ERROR();

    glUseProgram(mTextureProgram);
    glUniform1i(mTextureUniformLocation, 0);

    drawQuad(mTextureProgram, "position", 0.5f);

    EXPECT_GL_NO_ERROR();

    glDeleteTextures(1, &texture);

    EXPECT_GL_NO_ERROR();
}

TEST_F(CompressedTextureTest, compressed_tex_storage)
{
    if (getClientVersion() < 3 && !extensionEnabled("GL_EXT_texture_compression_dxt1"))
    {
        return;
    }

    if (getClientVersion() < 3 && (!extensionEnabled("GL_EXT_texture_storage") || !extensionEnabled("GL_OES_rgb8_rgba8")))
    {
        return;
    }

    GLuint texture;
    glGenTextures(1, &texture);
    glBindTexture(GL_TEXTURE_2D, texture);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_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);

    if (getClientVersion() < 3)
    {
        glTexStorage2DEXT(GL_TEXTURE_2D, pixel_levels, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_0_width, pixel_0_height);
    }
    else
    {
        glTexStorage2D(GL_TEXTURE_2D, pixel_levels, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_0_width, pixel_0_height);
    }
    EXPECT_GL_NO_ERROR();

    glCompressedTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, pixel_0_width, pixel_0_height, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_0_size, pixel_0_data);
    glCompressedTexSubImage2D(GL_TEXTURE_2D, 1, 0, 0, pixel_1_width, pixel_1_height, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_1_size, pixel_1_data);
    glCompressedTexSubImage2D(GL_TEXTURE_2D, 2, 0, 0, pixel_2_width, pixel_2_height, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_2_size, pixel_2_data);
    glCompressedTexSubImage2D(GL_TEXTURE_2D, 3, 0, 0, pixel_3_width, pixel_3_height, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_3_size, pixel_3_data);
    glCompressedTexSubImage2D(GL_TEXTURE_2D, 4, 0, 0, pixel_4_width, pixel_4_height, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_4_size, pixel_4_data);
    glCompressedTexSubImage2D(GL_TEXTURE_2D, 5, 0, 0, pixel_5_width, pixel_5_height, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_5_size, pixel_5_data);
    glCompressedTexSubImage2D(GL_TEXTURE_2D, 6, 0, 0, pixel_6_width, pixel_6_height, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_6_size, pixel_6_data);
    glCompressedTexSubImage2D(GL_TEXTURE_2D, 7, 0, 0, pixel_7_width, pixel_7_height, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_7_size, pixel_7_data);
    glCompressedTexSubImage2D(GL_TEXTURE_2D, 8, 0, 0, pixel_8_width, pixel_8_height, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_8_size, pixel_8_data);
    glCompressedTexSubImage2D(GL_TEXTURE_2D, 9, 0, 0, pixel_9_width, pixel_9_height, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, pixel_9_size, pixel_9_data);

    EXPECT_GL_NO_ERROR();

    glUseProgram(mTextureProgram);
    glUniform1i(mTextureUniformLocation, 0);

    drawQuad(mTextureProgram, "position", 0.5f);

    EXPECT_GL_NO_ERROR();

    glDeleteTextures(1, &texture);

    EXPECT_GL_NO_ERROR();
}

kc3-lang/angle/tests/angle_tests/CompressedTextureTest.cpp

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kc3-lang/angle /tests/angle_tests/CompressedTextureTest.cpp