renderer_utils.cpp

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Author : Jamie Madill
Date : 2017-07-19 16:15:42
Hash : 222c517f
Message : Control Debug layers in ANGLE_platform_angle. Debug layers seem to be a universal thing among functional back-ends. D3D, OpenGL and Vulkan all need some kind of controls for debugging, so it seems to make sense to make this control part of the base extension. Default the extension to EGL_DONT_CARE, which allows the back-end to have a lot of flexibility in terms of implementation. Also enable the extension in the D3D11 and OpenGL back-ends, and set the extension to enabled for angle_end2end_tests. Remove EGLVulkanEXTTest since it no longer tests anything not tested in the base ANGLETest class. BUG=angleproject:2086 Change-Id: I52d8170effd1846b9afbe6e4052c699fe5cb0de8 Reviewed-on: https://chromium-review.googlesource.com/578369 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
src/libANGLE/renderer/renderer_utils.cpp
//
// 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.
//
// renderer_utils:
//   Helper methods pertaining to most or all back-ends.
//

#include "libANGLE/renderer/renderer_utils.h"

#include "image_util/copyimage.h"
#include "image_util/imageformats.h"

#include "libANGLE/AttributeMap.h"
#include "libANGLE/formatutils.h"
#include "libANGLE/renderer/Format.h"

#include <string.h>

namespace rx
{

namespace
{
typedef std::pair<gl::FormatType, ColorWriteFunction> FormatWriteFunctionPair;
typedef std::map<gl::FormatType, ColorWriteFunction> FormatWriteFunctionMap;

static inline void InsertFormatWriteFunctionMapping(FormatWriteFunctionMap *map,
                                                    GLenum format,
                                                    GLenum type,
                                                    ColorWriteFunction writeFunc)
{
    map->insert(FormatWriteFunctionPair(gl::FormatType(format, type), writeFunc));
}

static FormatWriteFunctionMap BuildFormatWriteFunctionMap()
{
    using namespace angle;  //  For image writing functions

    FormatWriteFunctionMap map;

    // clang-format off
    //                                    | Format               | Type                             | Color write function             |
    InsertFormatWriteFunctionMapping(&map, GL_RGBA,               GL_UNSIGNED_BYTE,                  WriteColor<R8G8B8A8, GLfloat>     );
    InsertFormatWriteFunctionMapping(&map, GL_RGBA,               GL_BYTE,                           WriteColor<R8G8B8A8S, GLfloat>    );
    InsertFormatWriteFunctionMapping(&map, GL_RGBA,               GL_UNSIGNED_SHORT_4_4_4_4,         WriteColor<R4G4B4A4, GLfloat>     );
    InsertFormatWriteFunctionMapping(&map, GL_RGBA,               GL_UNSIGNED_SHORT_5_5_5_1,         WriteColor<R5G5B5A1, GLfloat>     );
    InsertFormatWriteFunctionMapping(&map, GL_RGBA,               GL_UNSIGNED_INT_2_10_10_10_REV,    WriteColor<R10G10B10A2, GLfloat>  );
    InsertFormatWriteFunctionMapping(&map, GL_RGBA,               GL_FLOAT,                          WriteColor<R32G32B32A32F, GLfloat>);
    InsertFormatWriteFunctionMapping(&map, GL_RGBA,               GL_HALF_FLOAT,                     WriteColor<R16G16B16A16F, GLfloat>);
    InsertFormatWriteFunctionMapping(&map, GL_RGBA,               GL_HALF_FLOAT_OES,                 WriteColor<R16G16B16A16F, GLfloat>);
    InsertFormatWriteFunctionMapping(&map, GL_RGBA, GL_UNSIGNED_SHORT,
                                     WriteColor<R16G16B16A16, GLfloat>);
    InsertFormatWriteFunctionMapping(&map, GL_RGBA, GL_SHORT, WriteColor<R16G16B16A16S, GLfloat>);

    InsertFormatWriteFunctionMapping(&map, GL_RGBA_INTEGER,       GL_UNSIGNED_BYTE,                  WriteColor<R8G8B8A8, GLuint>      );
    InsertFormatWriteFunctionMapping(&map, GL_RGBA_INTEGER,       GL_BYTE,                           WriteColor<R8G8B8A8S, GLint>      );
    InsertFormatWriteFunctionMapping(&map, GL_RGBA_INTEGER,       GL_UNSIGNED_SHORT,                 WriteColor<R16G16B16A16, GLuint>  );
    InsertFormatWriteFunctionMapping(&map, GL_RGBA_INTEGER,       GL_SHORT,                          WriteColor<R16G16B16A16S, GLint>  );
    InsertFormatWriteFunctionMapping(&map, GL_RGBA_INTEGER,       GL_UNSIGNED_INT,                   WriteColor<R32G32B32A32, GLuint>  );
    InsertFormatWriteFunctionMapping(&map, GL_RGBA_INTEGER,       GL_INT,                            WriteColor<R32G32B32A32S, GLint>  );
    InsertFormatWriteFunctionMapping(&map, GL_RGBA_INTEGER,       GL_UNSIGNED_INT_2_10_10_10_REV,    WriteColor<R10G10B10A2, GLuint>   );

    InsertFormatWriteFunctionMapping(&map, GL_RGB,                GL_UNSIGNED_BYTE,                  WriteColor<R8G8B8, GLfloat>       );
    InsertFormatWriteFunctionMapping(&map, GL_RGB,                GL_BYTE,                           WriteColor<R8G8B8S, GLfloat>      );
    InsertFormatWriteFunctionMapping(&map, GL_RGB,                GL_UNSIGNED_SHORT_5_6_5,           WriteColor<R5G6B5, GLfloat>       );
    InsertFormatWriteFunctionMapping(&map, GL_RGB,                GL_UNSIGNED_INT_10F_11F_11F_REV,   WriteColor<R11G11B10F, GLfloat>   );
    InsertFormatWriteFunctionMapping(&map, GL_RGB,                GL_UNSIGNED_INT_5_9_9_9_REV,       WriteColor<R9G9B9E5, GLfloat>     );
    InsertFormatWriteFunctionMapping(&map, GL_RGB,                GL_FLOAT,                          WriteColor<R32G32B32F, GLfloat>   );
    InsertFormatWriteFunctionMapping(&map, GL_RGB,                GL_HALF_FLOAT,                     WriteColor<R16G16B16F, GLfloat>   );
    InsertFormatWriteFunctionMapping(&map, GL_RGB,                GL_HALF_FLOAT_OES,                 WriteColor<R16G16B16F, GLfloat>   );
    InsertFormatWriteFunctionMapping(&map, GL_RGB, GL_UNSIGNED_SHORT,
                                     WriteColor<R16G16B16, GLfloat>);
    InsertFormatWriteFunctionMapping(&map, GL_RGB, GL_SHORT, WriteColor<R16G16B16S, GLfloat>);

    InsertFormatWriteFunctionMapping(&map, GL_RGB_INTEGER,        GL_UNSIGNED_BYTE,                  WriteColor<R8G8B8, GLuint>        );
    InsertFormatWriteFunctionMapping(&map, GL_RGB_INTEGER,        GL_BYTE,                           WriteColor<R8G8B8S, GLint>        );
    InsertFormatWriteFunctionMapping(&map, GL_RGB_INTEGER,        GL_UNSIGNED_SHORT,                 WriteColor<R16G16B16, GLuint>     );
    InsertFormatWriteFunctionMapping(&map, GL_RGB_INTEGER,        GL_SHORT,                          WriteColor<R16G16B16S, GLint>     );
    InsertFormatWriteFunctionMapping(&map, GL_RGB_INTEGER,        GL_UNSIGNED_INT,                   WriteColor<R32G32B32, GLuint>     );
    InsertFormatWriteFunctionMapping(&map, GL_RGB_INTEGER,        GL_INT,                            WriteColor<R32G32B32S, GLint>     );

    InsertFormatWriteFunctionMapping(&map, GL_RG,                 GL_UNSIGNED_BYTE,                  WriteColor<R8G8, GLfloat>         );
    InsertFormatWriteFunctionMapping(&map, GL_RG,                 GL_BYTE,                           WriteColor<R8G8S, GLfloat>        );
    InsertFormatWriteFunctionMapping(&map, GL_RG,                 GL_FLOAT,                          WriteColor<R32G32F, GLfloat>      );
    InsertFormatWriteFunctionMapping(&map, GL_RG,                 GL_HALF_FLOAT,                     WriteColor<R16G16F, GLfloat>      );
    InsertFormatWriteFunctionMapping(&map, GL_RG,                 GL_HALF_FLOAT_OES,                 WriteColor<R16G16F, GLfloat>      );
    InsertFormatWriteFunctionMapping(&map, GL_RG, GL_UNSIGNED_SHORT, WriteColor<R16G16, GLfloat>);
    InsertFormatWriteFunctionMapping(&map, GL_RG, GL_SHORT, WriteColor<R16G16S, GLfloat>);

    InsertFormatWriteFunctionMapping(&map, GL_RG_INTEGER,         GL_UNSIGNED_BYTE,                  WriteColor<R8G8, GLuint>          );
    InsertFormatWriteFunctionMapping(&map, GL_RG_INTEGER,         GL_BYTE,                           WriteColor<R8G8S, GLint>          );
    InsertFormatWriteFunctionMapping(&map, GL_RG_INTEGER,         GL_UNSIGNED_SHORT,                 WriteColor<R16G16, GLuint>        );
    InsertFormatWriteFunctionMapping(&map, GL_RG_INTEGER,         GL_SHORT,                          WriteColor<R16G16S, GLint>        );
    InsertFormatWriteFunctionMapping(&map, GL_RG_INTEGER,         GL_UNSIGNED_INT,                   WriteColor<R32G32, GLuint>        );
    InsertFormatWriteFunctionMapping(&map, GL_RG_INTEGER,         GL_INT,                            WriteColor<R32G32S, GLint>        );

    InsertFormatWriteFunctionMapping(&map, GL_RED,                GL_UNSIGNED_BYTE,                  WriteColor<R8, GLfloat>           );
    InsertFormatWriteFunctionMapping(&map, GL_RED,                GL_BYTE,                           WriteColor<R8S, GLfloat>          );
    InsertFormatWriteFunctionMapping(&map, GL_RED,                GL_FLOAT,                          WriteColor<R32F, GLfloat>         );
    InsertFormatWriteFunctionMapping(&map, GL_RED,                GL_HALF_FLOAT,                     WriteColor<R16F, GLfloat>         );
    InsertFormatWriteFunctionMapping(&map, GL_RED,                GL_HALF_FLOAT_OES,                 WriteColor<R16F, GLfloat>         );
    InsertFormatWriteFunctionMapping(&map, GL_RED, GL_UNSIGNED_SHORT, WriteColor<R16, GLfloat>);
    InsertFormatWriteFunctionMapping(&map, GL_RED, GL_SHORT, WriteColor<R16S, GLfloat>);

    InsertFormatWriteFunctionMapping(&map, GL_RED_INTEGER,        GL_UNSIGNED_BYTE,                  WriteColor<R8, GLuint>            );
    InsertFormatWriteFunctionMapping(&map, GL_RED_INTEGER,        GL_BYTE,                           WriteColor<R8S, GLint>            );
    InsertFormatWriteFunctionMapping(&map, GL_RED_INTEGER,        GL_UNSIGNED_SHORT,                 WriteColor<R16, GLuint>           );
    InsertFormatWriteFunctionMapping(&map, GL_RED_INTEGER,        GL_SHORT,                          WriteColor<R16S, GLint>           );
    InsertFormatWriteFunctionMapping(&map, GL_RED_INTEGER,        GL_UNSIGNED_INT,                   WriteColor<R32, GLuint>           );
    InsertFormatWriteFunctionMapping(&map, GL_RED_INTEGER,        GL_INT,                            WriteColor<R32S, GLint>           );

    InsertFormatWriteFunctionMapping(&map, GL_LUMINANCE_ALPHA,    GL_UNSIGNED_BYTE,                  WriteColor<L8A8, GLfloat>         );
    InsertFormatWriteFunctionMapping(&map, GL_LUMINANCE,          GL_UNSIGNED_BYTE,                  WriteColor<L8, GLfloat>           );
    InsertFormatWriteFunctionMapping(&map, GL_ALPHA,              GL_UNSIGNED_BYTE,                  WriteColor<A8, GLfloat>           );
    InsertFormatWriteFunctionMapping(&map, GL_LUMINANCE_ALPHA,    GL_FLOAT,                          WriteColor<L32A32F, GLfloat>      );
    InsertFormatWriteFunctionMapping(&map, GL_LUMINANCE,          GL_FLOAT,                          WriteColor<L32F, GLfloat>         );
    InsertFormatWriteFunctionMapping(&map, GL_ALPHA,              GL_FLOAT,                          WriteColor<A32F, GLfloat>         );
    InsertFormatWriteFunctionMapping(&map, GL_LUMINANCE_ALPHA,    GL_HALF_FLOAT,                     WriteColor<L16A16F, GLfloat>      );
    InsertFormatWriteFunctionMapping(&map, GL_LUMINANCE_ALPHA,    GL_HALF_FLOAT_OES,                 WriteColor<L16A16F, GLfloat>      );
    InsertFormatWriteFunctionMapping(&map, GL_LUMINANCE,          GL_HALF_FLOAT,                     WriteColor<L16F, GLfloat>         );
    InsertFormatWriteFunctionMapping(&map, GL_LUMINANCE,          GL_HALF_FLOAT_OES,                 WriteColor<L16F, GLfloat>         );
    InsertFormatWriteFunctionMapping(&map, GL_ALPHA,              GL_HALF_FLOAT,                     WriteColor<A16F, GLfloat>         );
    InsertFormatWriteFunctionMapping(&map, GL_ALPHA,              GL_HALF_FLOAT_OES,                 WriteColor<A16F, GLfloat>         );

    InsertFormatWriteFunctionMapping(&map, GL_BGRA_EXT,           GL_UNSIGNED_BYTE,                  WriteColor<B8G8R8A8, GLfloat>     );
    InsertFormatWriteFunctionMapping(&map, GL_BGRA_EXT,           GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, WriteColor<A4R4G4B4, GLfloat>     );
    InsertFormatWriteFunctionMapping(&map, GL_BGRA_EXT,           GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, WriteColor<A1R5G5B5, GLfloat>     );

    InsertFormatWriteFunctionMapping(&map, GL_SRGB_EXT,           GL_UNSIGNED_BYTE,                  WriteColor<R8G8B8, GLfloat>       );
    InsertFormatWriteFunctionMapping(&map, GL_SRGB_ALPHA_EXT,     GL_UNSIGNED_BYTE,                  WriteColor<R8G8B8A8, GLfloat>     );

    InsertFormatWriteFunctionMapping(&map, GL_COMPRESSED_RGB_S3TC_DXT1_EXT,    GL_UNSIGNED_BYTE,     nullptr                              );
    InsertFormatWriteFunctionMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT,   GL_UNSIGNED_BYTE,     nullptr                              );
    InsertFormatWriteFunctionMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE,     nullptr                              );
    InsertFormatWriteFunctionMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE,     nullptr                              );

    InsertFormatWriteFunctionMapping(&map, GL_DEPTH_COMPONENT,    GL_UNSIGNED_SHORT,                 nullptr                              );
    InsertFormatWriteFunctionMapping(&map, GL_DEPTH_COMPONENT,    GL_UNSIGNED_INT,                   nullptr                              );
    InsertFormatWriteFunctionMapping(&map, GL_DEPTH_COMPONENT,    GL_FLOAT,                          nullptr                              );

    InsertFormatWriteFunctionMapping(&map, GL_STENCIL,            GL_UNSIGNED_BYTE,                  nullptr                              );

    InsertFormatWriteFunctionMapping(&map, GL_DEPTH_STENCIL,      GL_UNSIGNED_INT_24_8,              nullptr                              );
    InsertFormatWriteFunctionMapping(&map, GL_DEPTH_STENCIL,      GL_FLOAT_32_UNSIGNED_INT_24_8_REV, nullptr                              );
    // clang-format on

    return map;
}
}  // anonymous namespace

PackPixelsParams::PackPixelsParams()
    : format(GL_NONE), type(GL_NONE), outputPitch(0), packBuffer(nullptr), offset(0)
{
}

PackPixelsParams::PackPixelsParams(const gl::Rectangle &areaIn,
                                   GLenum formatIn,
                                   GLenum typeIn,
                                   GLuint outputPitchIn,
                                   const gl::PixelPackState &packIn,
                                   ptrdiff_t offsetIn)
    : area(areaIn),
      format(formatIn),
      type(typeIn),
      outputPitch(outputPitchIn),
      packBuffer(packIn.pixelBuffer.get()),
      pack(packIn.alignment, packIn.reverseRowOrder),
      offset(offsetIn)
{
}

PackPixelsParams::PackPixelsParams(const gl::Context *context, const PackPixelsParams &other)
    : area(other.area),
      format(other.format),
      type(other.type),
      outputPitch(other.outputPitch),
      packBuffer(other.packBuffer),
      pack(),
      offset(other.offset)
{
    pack.copyFrom(context, other.pack);
}

void PackPixels(const PackPixelsParams &params,
                const angle::Format &sourceFormat,
                int inputPitchIn,
                const uint8_t *sourceIn,
                uint8_t *destWithoutOffset)
{
    uint8_t *destWithOffset = destWithoutOffset + params.offset;

    const uint8_t *source = sourceIn;
    int inputPitch        = inputPitchIn;

    if (params.pack.reverseRowOrder)
    {
        source += inputPitch * (params.area.height - 1);
        inputPitch = -inputPitch;
    }

    const auto &sourceGLInfo = gl::GetSizedInternalFormatInfo(sourceFormat.glInternalFormat);

    if (sourceGLInfo.format == params.format && sourceGLInfo.type == params.type)
    {
        // Direct copy possible
        for (int y = 0; y < params.area.height; ++y)
        {
            memcpy(destWithOffset + y * params.outputPitch, source + y * inputPitch,
                   params.area.width * sourceGLInfo.pixelBytes);
        }
        return;
    }

    ASSERT(sourceGLInfo.sized);

    gl::FormatType formatType(params.format, params.type);
    ColorCopyFunction fastCopyFunc =
        GetFastCopyFunction(sourceFormat.fastCopyFunctions, formatType);
    const auto &destFormatInfo = gl::GetInternalFormatInfo(formatType.format, formatType.type);

    if (fastCopyFunc)
    {
        // Fast copy is possible through some special function
        for (int y = 0; y < params.area.height; ++y)
        {
            for (int x = 0; x < params.area.width; ++x)
            {
                uint8_t *dest =
                    destWithOffset + y * params.outputPitch + x * destFormatInfo.pixelBytes;
                const uint8_t *src = source + y * inputPitch + x * sourceGLInfo.pixelBytes;

                fastCopyFunc(src, dest);
            }
        }
        return;
    }

    ColorWriteFunction colorWriteFunction = GetColorWriteFunction(formatType);

    // Maximum size of any Color<T> type used.
    uint8_t temp[16];
    static_assert(sizeof(temp) >= sizeof(gl::ColorF) && sizeof(temp) >= sizeof(gl::ColorUI) &&
                      sizeof(temp) >= sizeof(gl::ColorI),
                  "Unexpected size of gl::Color struct.");

    const auto &colorReadFunction = sourceFormat.colorReadFunction;

    for (int y = 0; y < params.area.height; ++y)
    {
        for (int x = 0; x < params.area.width; ++x)
        {
            uint8_t *dest      = destWithOffset + y * params.outputPitch + x * destFormatInfo.pixelBytes;
            const uint8_t *src = source + y * inputPitch + x * sourceGLInfo.pixelBytes;

            // readFunc and writeFunc will be using the same type of color, CopyTexImage
            // will not allow the copy otherwise.
            colorReadFunction(src, temp);
            colorWriteFunction(temp, dest);
        }
    }
}

ColorWriteFunction GetColorWriteFunction(const gl::FormatType &formatType)
{
    static const FormatWriteFunctionMap formatTypeMap = BuildFormatWriteFunctionMap();
    auto iter = formatTypeMap.find(formatType);
    ASSERT(iter != formatTypeMap.end());
    if (iter != formatTypeMap.end())
    {
        return iter->second;
    }
    else
    {
        return nullptr;
    }
}

ColorCopyFunction GetFastCopyFunction(const FastCopyFunctionMap &fastCopyFunctions,
                                      const gl::FormatType &formatType)
{
    return fastCopyFunctions.get(formatType);
}

bool FastCopyFunctionMap::has(const gl::FormatType &formatType) const
{
    return (get(formatType) != nullptr);
}

ColorCopyFunction FastCopyFunctionMap::get(const gl::FormatType &formatType) const
{
    for (size_t index = 0; index < mSize; ++index)
    {
        if (mData[index].format == formatType.format && mData[index].type == formatType.type)
        {
            return mData[index].func;
        }
    }

    return nullptr;
}

bool ShouldUseDebugLayers(const egl::AttributeMap &attribs)
{
    EGLAttrib debugSetting =
        attribs.get(EGL_PLATFORM_ANGLE_DEBUG_LAYERS_ENABLED_ANGLE, EGL_DONT_CARE);

// Prefer to enable debug layers if compiling in Debug, and disabled in Release.
#if !defined(NDEBUG)
    return (debugSetting != EGL_FALSE);
#else
    return (debugSetting == EGL_TRUE);
#endif  // !defined(NDEBUG)
}

}  // namespace rx
kc3-lang/angle/src/libANGLE/renderer/renderer_utils.cpp

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kc3-lang/angle /src/libANGLE/renderer/renderer_utils.cpp
