BufferDataTest.cpp

Branch :
Show log
Commit
Author : Jamie Madill
Date : 2018-12-29 10:29:33
Hash : ba319ba3
Message : Re-land "Load entry points dynamically in tests and samples." Fixes the Android/ChromeOS/Fuchsia builds by using consistent EGL headers. This CL adds a dynamic loader generator based on XML files. It also refactors the entry point generation script to move the XML parsing into a helper class. Additionally this includes a new GLES 1.0 base header. The new header allows for function pointer types and hiding prototypes. All tests and samples now load ANGLE dynamically. In the future this will be extended to load entry points from the driver directly when possible. This will allow us to perform more accurate A/B testing. The new build configuration leads to some tests having more warnings applied. The CL includes fixes for the new warnings. Bug: angleproject:2995 Change-Id: I5a8772f41a0f89570b3736b785f44b7de1539b57 Reviewed-on: https://chromium-review.googlesource.com/c/1392382 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
src/tests/gl_tests/BufferDataTest.cpp
//
// 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"
#include "test_utils/gl_raii.h"

#include "util/random_utils.h"

#include <stdint.h>

using namespace angle;

class BufferDataTest : public ANGLETest
{
  protected:
    BufferDataTest()
    {
        setWindowWidth(16);
        setWindowHeight(16);
        setConfigRedBits(8);
        setConfigGreenBits(8);
        setConfigBlueBits(8);
        setConfigAlphaBits(8);
        setConfigDepthBits(24);

        mBuffer         = 0;
        mProgram        = 0;
        mAttribLocation = -1;
    }

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

        constexpr char kVS[] = R"(attribute vec4 position;
attribute float in_attrib;
varying float v_attrib;
void main()
{
    v_attrib = in_attrib;
    gl_Position = position;
})";

        constexpr char kFS[] = R"(precision mediump float;
varying float v_attrib;
void main()
{
    gl_FragColor = vec4(v_attrib, 0, 0, 1);
})";

        glGenBuffers(1, &mBuffer);
        ASSERT_NE(mBuffer, 0U);

        mProgram = CompileProgram(kVS, kFS);
        ASSERT_NE(mProgram, 0U);

        mAttribLocation = glGetAttribLocation(mProgram, "in_attrib");
        ASSERT_NE(mAttribLocation, -1);

        glClearColor(0, 0, 0, 0);
        glClearDepthf(0.0);
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

        glDisable(GL_DEPTH_TEST);

        ASSERT_GL_NO_ERROR();
    }

    void TearDown() override
    {
        glDeleteBuffers(1, &mBuffer);
        glDeleteProgram(mProgram);

        ANGLETest::TearDown();
    }

    GLuint mBuffer;
    GLuint mProgram;
    GLint mAttribLocation;
};

TEST_P(BufferDataTest, NULLData)
{
    glBindBuffer(GL_ARRAY_BUFFER, mBuffer);
    EXPECT_GL_NO_ERROR();

    const int numIterations = 128;
    for (int i = 0; i < numIterations; ++i)
    {
        GLsizei bufferSize = sizeof(GLfloat) * (i + 1);
        glBufferData(GL_ARRAY_BUFFER, bufferSize, nullptr, GL_STATIC_DRAW);
        EXPECT_GL_NO_ERROR();

        for (int j = 0; j < bufferSize; j++)
        {
            for (int k = 0; k < bufferSize - j; k++)
            {
                glBufferSubData(GL_ARRAY_BUFFER, k, j, nullptr);
                ASSERT_GL_NO_ERROR();
            }
        }
    }
}

TEST_P(BufferDataTest, ZeroNonNULLData)
{
    glBindBuffer(GL_ARRAY_BUFFER, mBuffer);
    EXPECT_GL_NO_ERROR();

    char *zeroData = new char[0];
    glBufferData(GL_ARRAY_BUFFER, 0, zeroData, GL_STATIC_DRAW);
    EXPECT_GL_NO_ERROR();

    glBufferSubData(GL_ARRAY_BUFFER, 0, 0, zeroData);
    EXPECT_GL_NO_ERROR();

    delete[] zeroData;
}

TEST_P(BufferDataTest, NULLResolvedData)
{
    glBindBuffer(GL_ARRAY_BUFFER, mBuffer);
    glBufferData(GL_ARRAY_BUFFER, 128, nullptr, GL_DYNAMIC_DRAW);

    glUseProgram(mProgram);
    glVertexAttribPointer(mAttribLocation, 1, GL_FLOAT, GL_FALSE, 4, nullptr);
    glEnableVertexAttribArray(mAttribLocation);
    glBindBuffer(GL_ARRAY_BUFFER, 0);

    drawQuad(mProgram, "position", 0.5f);
}

// Internally in D3D, we promote dynamic data to static after many draw loops. This code tests
// path.
TEST_P(BufferDataTest, RepeatedDrawWithDynamic)
{
    std::vector<GLfloat> data;
    for (int i = 0; i < 16; ++i)
    {
        data.push_back(static_cast<GLfloat>(i));
    }

    glUseProgram(mProgram);
    glBindBuffer(GL_ARRAY_BUFFER, mBuffer);
    glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * data.size(), data.data(), GL_DYNAMIC_DRAW);
    glVertexAttribPointer(mAttribLocation, 1, GL_FLOAT, GL_FALSE, 0, nullptr);
    glBindBuffer(GL_ARRAY_BUFFER, 0);
    glEnableVertexAttribArray(mAttribLocation);

    for (int drawCount = 0; drawCount < 40; ++drawCount)
    {
        drawQuad(mProgram, "position", 0.5f);
    }

    EXPECT_GL_NO_ERROR();
}

// Tests for a bug where vertex attribute translation was not being invalidated when switching to
// DYNAMIC
TEST_P(BufferDataTest, RepeatedDrawDynamicBug)
{
    // http://anglebug.com/2843: Seems to be an Intel driver bug.
    ANGLE_SKIP_TEST_IF(IsVulkan() && IsIntel() && IsWindows());

    glUseProgram(mProgram);

    GLint positionLocation = glGetAttribLocation(mProgram, "position");
    ASSERT_NE(-1, positionLocation);

    auto quadVertices = GetQuadVertices();
    for (angle::Vector3 &vertex : quadVertices)
    {
        vertex.x() *= 1.0f;
        vertex.y() *= 1.0f;
        vertex.z() = 0.0f;
    }

    // Set up quad vertices with DYNAMIC data
    GLBuffer positionBuffer;
    glBindBuffer(GL_ARRAY_BUFFER, positionBuffer);
    glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * quadVertices.size() * 3, quadVertices.data(),
                 GL_DYNAMIC_DRAW);
    glVertexAttribPointer(positionLocation, 3, GL_FLOAT, GL_FALSE, 0, nullptr);
    glEnableVertexAttribArray(positionLocation);
    glBindBuffer(GL_ARRAY_BUFFER, 0);
    EXPECT_GL_NO_ERROR();

    // Set up color data so red is drawn
    std::vector<GLfloat> data(6, 1.0f);

    // Set data to DYNAMIC
    glBindBuffer(GL_ARRAY_BUFFER, mBuffer);
    glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * data.size(), data.data(), GL_DYNAMIC_DRAW);
    glVertexAttribPointer(mAttribLocation, 1, GL_FLOAT, GL_FALSE, 0, nullptr);
    glEnableVertexAttribArray(mAttribLocation);
    EXPECT_GL_NO_ERROR();

    // Draw enough times to promote data to DIRECT mode
    for (int i = 0; i < 20; i++)
    {
        glDrawArrays(GL_TRIANGLES, 0, 6);
    }

    // Verify red was drawn
    EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red);

    // Set up color value so black is drawn
    std::fill(data.begin(), data.end(), 0.0f);

    // Update the data, changing back to DYNAMIC mode.
    glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * data.size(), data.data(), GL_DYNAMIC_DRAW);

    // This draw should produce a black quad
    glDrawArrays(GL_TRIANGLES, 0, 6);
    EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::black);
    EXPECT_GL_NO_ERROR();
}

class IndexedBufferCopyTest : public ANGLETest
{
  protected:
    IndexedBufferCopyTest()
    {
        setWindowWidth(16);
        setWindowHeight(16);
        setConfigRedBits(8);
        setConfigGreenBits(8);
        setConfigBlueBits(8);
        setConfigAlphaBits(8);
        setConfigDepthBits(24);
    }

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

        constexpr char kVS[] = R"(attribute vec3 in_attrib;
varying vec3 v_attrib;
void main()
{
    v_attrib = in_attrib;
    gl_Position = vec4(0.0, 0.0, 0.5, 1.0);
    gl_PointSize = 100.0;
})";

        constexpr char kFS[] = R"(precision mediump float;
varying vec3 v_attrib;
void main()
{
    gl_FragColor = vec4(v_attrib, 1);
})";

        glGenBuffers(2, mBuffers);
        ASSERT_NE(mBuffers[0], 0U);
        ASSERT_NE(mBuffers[1], 0U);

        glGenBuffers(1, &mElementBuffer);
        ASSERT_NE(mElementBuffer, 0U);

        mProgram = CompileProgram(kVS, kFS);
        ASSERT_NE(mProgram, 0U);

        mAttribLocation = glGetAttribLocation(mProgram, "in_attrib");
        ASSERT_NE(mAttribLocation, -1);

        glClearColor(0, 0, 0, 0);
        glDisable(GL_DEPTH_TEST);
        glClear(GL_COLOR_BUFFER_BIT);

        ASSERT_GL_NO_ERROR();
    }

    void TearDown() override
    {
        glDeleteBuffers(2, mBuffers);
        glDeleteBuffers(1, &mElementBuffer);
        glDeleteProgram(mProgram);

        ANGLETest::TearDown();
    }

    GLuint mBuffers[2];
    GLuint mElementBuffer;
    GLuint mProgram;
    GLint mAttribLocation;
};

// The following test covers an ANGLE bug where our index ranges
// weren't updated from CopyBufferSubData calls
// https://code.google.com/p/angleproject/issues/detail?id=709
TEST_P(IndexedBufferCopyTest, IndexRangeBug)
{
    // TODO(geofflang): Figure out why this fails on AMD OpenGL (http://anglebug.com/1291)
    ANGLE_SKIP_TEST_IF(IsAMD() && IsOpenGL());

    unsigned char vertexData[] = {255, 0, 0, 0, 0, 0};
    unsigned int indexData[]   = {0, 1};

    glBindBuffer(GL_ARRAY_BUFFER, mBuffers[0]);
    glBufferData(GL_ARRAY_BUFFER, sizeof(char) * 6, vertexData, GL_STATIC_DRAW);

    glUseProgram(mProgram);
    glVertexAttribPointer(mAttribLocation, 3, GL_UNSIGNED_BYTE, GL_TRUE, 3, nullptr);
    glEnableVertexAttribArray(mAttribLocation);

    ASSERT_GL_NO_ERROR();

    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mElementBuffer);
    glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(int) * 1, indexData, GL_STATIC_DRAW);

    glUseProgram(mProgram);

    ASSERT_GL_NO_ERROR();

    glDrawElements(GL_POINTS, 1, GL_UNSIGNED_INT, nullptr);

    EXPECT_GL_NO_ERROR();
    EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255);

    glBindBuffer(GL_COPY_READ_BUFFER, mBuffers[1]);
    glBufferData(GL_COPY_READ_BUFFER, 4, &indexData[1], GL_STATIC_DRAW);

    glBindBuffer(GL_COPY_WRITE_BUFFER, mElementBuffer);

    glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 0, sizeof(int));

    ASSERT_GL_NO_ERROR();

    glClear(GL_COLOR_BUFFER_BIT);
    EXPECT_PIXEL_EQ(0, 0, 0, 0, 0, 0);

    unsigned char newData[] = {0, 255, 0};
    glBufferSubData(GL_ARRAY_BUFFER, 3, 3, newData);

    glDrawElements(GL_POINTS, 1, GL_UNSIGNED_INT, nullptr);

    EXPECT_GL_NO_ERROR();
    EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green);
}

class BufferDataTestES3 : public BufferDataTest
{};

// The following test covers an ANGLE bug where the buffer storage
// is not resized by Buffer11::getLatestBufferStorage when needed.
// https://code.google.com/p/angleproject/issues/detail?id=897
TEST_P(BufferDataTestES3, BufferResizing)
{
    glBindBuffer(GL_ARRAY_BUFFER, mBuffer);
    ASSERT_GL_NO_ERROR();

    // Allocate a buffer with one byte
    uint8_t singleByte[] = {0xaa};
    glBufferData(GL_ARRAY_BUFFER, 1, singleByte, GL_STATIC_DRAW);

    // Resize the buffer
    // To trigger the bug, the buffer need to be big enough because some hardware copy buffers
    // by chunks of pages instead of the minimum number of bytes neeeded.
    const size_t numBytes = 4096 * 4;
    glBufferData(GL_ARRAY_BUFFER, numBytes, nullptr, GL_STATIC_DRAW);

    // Copy the original data to the buffer
    uint8_t srcBytes[numBytes];
    for (size_t i = 0; i < numBytes; ++i)
    {
        srcBytes[i] = static_cast<uint8_t>(i);
    }

    void *dest = glMapBufferRange(GL_ARRAY_BUFFER, 0, numBytes,
                                  GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);

    ASSERT_GL_NO_ERROR();

    memcpy(dest, srcBytes, numBytes);
    glUnmapBuffer(GL_ARRAY_BUFFER);

    EXPECT_GL_NO_ERROR();

    // Create a new buffer and copy the data to it
    GLuint readBuffer;
    glGenBuffers(1, &readBuffer);
    glBindBuffer(GL_COPY_WRITE_BUFFER, readBuffer);
    uint8_t zeros[numBytes];
    for (size_t i = 0; i < numBytes; ++i)
    {
        zeros[i] = 0;
    }
    glBufferData(GL_COPY_WRITE_BUFFER, numBytes, zeros, GL_STATIC_DRAW);
    glCopyBufferSubData(GL_ARRAY_BUFFER, GL_COPY_WRITE_BUFFER, 0, 0, numBytes);

    ASSERT_GL_NO_ERROR();

    // Read back the data and compare it to the original
    uint8_t *data = reinterpret_cast<uint8_t *>(
        glMapBufferRange(GL_COPY_WRITE_BUFFER, 0, numBytes, GL_MAP_READ_BIT));

    ASSERT_GL_NO_ERROR();

    for (size_t i = 0; i < numBytes; ++i)
    {
        EXPECT_EQ(srcBytes[i], data[i]);
    }
    glUnmapBuffer(GL_COPY_WRITE_BUFFER);

    glDeleteBuffers(1, &readBuffer);

    EXPECT_GL_NO_ERROR();
}

// Verify OES_mapbuffer is present if EXT_map_buffer_range is.
TEST_P(BufferDataTest, ExtensionDependency)
{
    if (extensionEnabled("GL_EXT_map_buffer_range"))
    {
        ASSERT_TRUE(extensionEnabled("GL_OES_mapbuffer"));
    }
}

// Test mapping with the OES extension.
TEST_P(BufferDataTest, MapBufferOES)
{
    if (!extensionEnabled("GL_EXT_map_buffer_range"))
    {
        // Needed for test validation.
        return;
    }

    std::vector<uint8_t> data(1024);
    FillVectorWithRandomUBytes(&data);

    GLBuffer buffer;
    glBindBuffer(GL_ARRAY_BUFFER, buffer.get());
    glBufferData(GL_ARRAY_BUFFER, data.size(), nullptr, GL_STATIC_DRAW);

    // Validate that other map flags don't work.
    void *badMapPtr = glMapBufferOES(GL_ARRAY_BUFFER, GL_MAP_READ_BIT);
    EXPECT_EQ(nullptr, badMapPtr);
    EXPECT_GL_ERROR(GL_INVALID_ENUM);

    // Map and write.
    void *mapPtr = glMapBufferOES(GL_ARRAY_BUFFER, GL_WRITE_ONLY_OES);
    ASSERT_NE(nullptr, mapPtr);
    ASSERT_GL_NO_ERROR();
    memcpy(mapPtr, data.data(), data.size());
    glUnmapBufferOES(GL_ARRAY_BUFFER);

    // Validate data with EXT_map_buffer_range
    void *readMapPtr = glMapBufferRangeEXT(GL_ARRAY_BUFFER, 0, data.size(), GL_MAP_READ_BIT_EXT);
    ASSERT_NE(nullptr, readMapPtr);
    ASSERT_GL_NO_ERROR();
    std::vector<uint8_t> actualData(data.size());
    memcpy(actualData.data(), readMapPtr, data.size());
    glUnmapBufferOES(GL_ARRAY_BUFFER);

    EXPECT_EQ(data, actualData);
}

// Tests a bug where copying buffer data immediately after creation hit a nullptr in D3D11.
TEST_P(BufferDataTestES3, NoBufferInitDataCopyBug)
{
    constexpr GLsizei size = 64;

    GLBuffer sourceBuffer;
    glBindBuffer(GL_COPY_READ_BUFFER, sourceBuffer);
    glBufferData(GL_COPY_READ_BUFFER, size, nullptr, GL_STATIC_DRAW);

    GLBuffer destBuffer;
    glBindBuffer(GL_ARRAY_BUFFER, destBuffer);
    glBufferData(GL_ARRAY_BUFFER, size, nullptr, GL_STATIC_DRAW);

    glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_ARRAY_BUFFER, 0, 0, size);
    ASSERT_GL_NO_ERROR();
}

// Use this to select which configurations (e.g. which renderer, which GLES major version) these
// tests should be run against.
ANGLE_INSTANTIATE_TEST(BufferDataTest,
                       ES2_D3D9(),
                       ES2_D3D11(),
                       ES2_OPENGL(),
                       ES2_OPENGLES(),
                       ES2_VULKAN());
ANGLE_INSTANTIATE_TEST(BufferDataTestES3, ES3_D3D11(), ES3_OPENGL(), ES3_OPENGLES());
ANGLE_INSTANTIATE_TEST(IndexedBufferCopyTest, ES3_D3D11(), ES3_OPENGL(), ES3_OPENGLES());

#ifdef _WIN64

// Test a bug where an integer overflow bug could trigger a crash in D3D.
// The test uses 8 buffers with a size just under 0x2000000 to overflow max uint
// (with the internal D3D rounding to 16-byte values) and trigger the bug.
// Only handle this bug on 64-bit Windows for now. Harder to repro on 32-bit.
class BufferDataOverflowTest : public ANGLETest
{
  protected:
    BufferDataOverflowTest() {}
};

// See description above.
TEST_P(BufferDataOverflowTest, VertexBufferIntegerOverflow)
{
    // These values are special, to trigger the rounding bug.
    unsigned int numItems       = 0x7FFFFFE;
    constexpr GLsizei bufferCnt = 8;

    std::vector<GLBuffer> buffers(bufferCnt);

    std::stringstream vertexShaderStr;

    for (GLsizei bufferIndex = 0; bufferIndex < bufferCnt; ++bufferIndex)
    {
        vertexShaderStr << "attribute float attrib" << bufferIndex << ";\n";
    }

    vertexShaderStr << "attribute vec2 position;\n"
                       "varying float v_attrib;\n"
                       "void main() {\n"
                       "  gl_Position = vec4(position, 0, 1);\n"
                       "  v_attrib = 0.0;\n";

    for (GLsizei bufferIndex = 0; bufferIndex < bufferCnt; ++bufferIndex)
    {
        vertexShaderStr << "v_attrib += attrib" << bufferIndex << ";\n";
    }

    vertexShaderStr << "}";

    constexpr char kFS[] =
        "varying highp float v_attrib;\n"
        "void main() {\n"
        "  gl_FragColor = vec4(v_attrib, 0, 0, 1);\n"
        "}";

    ANGLE_GL_PROGRAM(program, vertexShaderStr.str().c_str(), kFS);
    glUseProgram(program.get());

    std::vector<GLfloat> data(numItems, 1.0f);

    for (GLsizei bufferIndex = 0; bufferIndex < bufferCnt; ++bufferIndex)
    {
        glBindBuffer(GL_ARRAY_BUFFER, buffers[bufferIndex].get());
        glBufferData(GL_ARRAY_BUFFER, numItems * sizeof(float), &data[0], GL_DYNAMIC_DRAW);

        std::stringstream attribNameStr;
        attribNameStr << "attrib" << bufferIndex;

        GLint attribLocation = glGetAttribLocation(program.get(), attribNameStr.str().c_str());
        ASSERT_NE(-1, attribLocation);

        glVertexAttribPointer(attribLocation, 1, GL_FLOAT, GL_FALSE, 4, nullptr);
        glEnableVertexAttribArray(attribLocation);
    }

    GLint positionLocation = glGetAttribLocation(program.get(), "position");
    ASSERT_NE(-1, positionLocation);
    glDisableVertexAttribArray(positionLocation);
    glVertexAttrib2f(positionLocation, 1.0f, 1.0f);

    EXPECT_GL_NO_ERROR();
    glDrawArrays(GL_TRIANGLES, 0, numItems);
    EXPECT_GL_ERROR(GL_OUT_OF_MEMORY);
}

// Tests a security bug in our CopyBufferSubData validation (integer overflow).
TEST_P(BufferDataOverflowTest, CopySubDataValidation)
{
    GLBuffer readBuffer, writeBuffer;

    glBindBuffer(GL_COPY_READ_BUFFER, readBuffer.get());
    glBindBuffer(GL_COPY_WRITE_BUFFER, writeBuffer.get());

    constexpr int bufSize = 100;

    glBufferData(GL_COPY_READ_BUFFER, bufSize, nullptr, GL_STATIC_DRAW);
    glBufferData(GL_COPY_WRITE_BUFFER, bufSize, nullptr, GL_STATIC_DRAW);

    GLintptr big = std::numeric_limits<GLintptr>::max() - bufSize + 90;

    glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, big, 0, 50);
    EXPECT_GL_ERROR(GL_INVALID_VALUE);

    glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, big, 50);
    EXPECT_GL_ERROR(GL_INVALID_VALUE);
}

ANGLE_INSTANTIATE_TEST(BufferDataOverflowTest, ES3_D3D11());

#endif  // _WIN64
kc3-lang/angle/src/tests/gl_tests/BufferDataTest.cpp

Commit

kc3-lang/angle /src/tests/gl_tests/BufferDataTest.cpp
