PackedEnums.cpp

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Author : Jamie Madill
Date : 2019-06-26 16:19:34
Hash : 485cdd8b
Message : Add std::ostream output for packed enums. This can be used to convert them to strings for debugging. It can also be helpful for frame capture and replay. Currently the enums are output as GLenum values. Bug: angleproject:3611 Change-Id: Ifcd04449e0ef61e125e0db65aa0dcc2bf48b38ca Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1678399 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> Commit-Queue: Jamie Madill <jmadill@chromium.org>
src/common/PackedEnums.cpp
// Copyright 2018 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.
//
// PackedGLEnums.cpp:
//   Declares ANGLE-specific enums classes for GLEnum and functions operating
//   on them.

#include "common/PackedEnums.h"

#include "common/utilities.h"

namespace gl
{

TextureType TextureTargetToType(TextureTarget target)
{
    switch (target)
    {
        case TextureTarget::CubeMapNegativeX:
        case TextureTarget::CubeMapNegativeY:
        case TextureTarget::CubeMapNegativeZ:
        case TextureTarget::CubeMapPositiveX:
        case TextureTarget::CubeMapPositiveY:
        case TextureTarget::CubeMapPositiveZ:
            return TextureType::CubeMap;
        case TextureTarget::External:
            return TextureType::External;
        case TextureTarget::Rectangle:
            return TextureType::Rectangle;
        case TextureTarget::_2D:
            return TextureType::_2D;
        case TextureTarget::_2DArray:
            return TextureType::_2DArray;
        case TextureTarget::_2DMultisample:
            return TextureType::_2DMultisample;
        case TextureTarget::_2DMultisampleArray:
            return TextureType::_2DMultisampleArray;
        case TextureTarget::_3D:
            return TextureType::_3D;
        case TextureTarget::InvalidEnum:
            return TextureType::InvalidEnum;
        default:
            UNREACHABLE();
            return TextureType::InvalidEnum;
    }
}

bool IsCubeMapFaceTarget(TextureTarget target)
{
    return TextureTargetToType(target) == TextureType::CubeMap;
}

TextureTarget NonCubeTextureTypeToTarget(TextureType type)
{
    switch (type)
    {
        case TextureType::External:
            return TextureTarget::External;
        case TextureType::Rectangle:
            return TextureTarget::Rectangle;
        case TextureType::_2D:
            return TextureTarget::_2D;
        case TextureType::_2DArray:
            return TextureTarget::_2DArray;
        case TextureType::_2DMultisample:
            return TextureTarget::_2DMultisample;
        case TextureType::_2DMultisampleArray:
            return TextureTarget::_2DMultisampleArray;
        case TextureType::_3D:
            return TextureTarget::_3D;
        default:
            UNREACHABLE();
            return TextureTarget::InvalidEnum;
    }
}

// Check that we can do arithmetic on TextureTarget to convert from / to cube map faces
static_assert(static_cast<uint8_t>(TextureTarget::CubeMapNegativeX) -
                      static_cast<uint8_t>(TextureTarget::CubeMapPositiveX) ==
                  1u,
              "");
static_assert(static_cast<uint8_t>(TextureTarget::CubeMapPositiveY) -
                      static_cast<uint8_t>(TextureTarget::CubeMapPositiveX) ==
                  2u,
              "");
static_assert(static_cast<uint8_t>(TextureTarget::CubeMapNegativeY) -
                      static_cast<uint8_t>(TextureTarget::CubeMapPositiveX) ==
                  3u,
              "");
static_assert(static_cast<uint8_t>(TextureTarget::CubeMapPositiveZ) -
                      static_cast<uint8_t>(TextureTarget::CubeMapPositiveX) ==
                  4u,
              "");
static_assert(static_cast<uint8_t>(TextureTarget::CubeMapNegativeZ) -
                      static_cast<uint8_t>(TextureTarget::CubeMapPositiveX) ==
                  5u,
              "");

TextureTarget CubeFaceIndexToTextureTarget(size_t face)
{
    ASSERT(face < 6u);
    return static_cast<TextureTarget>(static_cast<uint8_t>(TextureTarget::CubeMapPositiveX) + face);
}

size_t CubeMapTextureTargetToFaceIndex(TextureTarget target)
{
    ASSERT(IsCubeMapFaceTarget(target));
    return static_cast<uint8_t>(target) - static_cast<uint8_t>(TextureTarget::CubeMapPositiveX);
}

TextureType SamplerTypeToTextureType(GLenum samplerType)
{
    switch (samplerType)
    {
        case GL_SAMPLER_2D:
        case GL_INT_SAMPLER_2D:
        case GL_UNSIGNED_INT_SAMPLER_2D:
        case GL_SAMPLER_2D_SHADOW:
            return TextureType::_2D;

        case GL_SAMPLER_EXTERNAL_OES:
            return TextureType::External;

        case GL_SAMPLER_CUBE:
        case GL_INT_SAMPLER_CUBE:
        case GL_UNSIGNED_INT_SAMPLER_CUBE:
        case GL_SAMPLER_CUBE_SHADOW:
            return TextureType::CubeMap;

        case GL_SAMPLER_2D_ARRAY:
        case GL_INT_SAMPLER_2D_ARRAY:
        case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY:
        case GL_SAMPLER_2D_ARRAY_SHADOW:
            return TextureType::_2DArray;

        case GL_SAMPLER_3D:
        case GL_INT_SAMPLER_3D:
        case GL_UNSIGNED_INT_SAMPLER_3D:
            return TextureType::_3D;

        case GL_SAMPLER_2D_MULTISAMPLE:
        case GL_INT_SAMPLER_2D_MULTISAMPLE:
        case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE:
            return TextureType::_2DMultisample;

        case GL_SAMPLER_2D_MULTISAMPLE_ARRAY:
        case GL_INT_SAMPLER_2D_MULTISAMPLE_ARRAY:
        case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY:
            return TextureType::_2DMultisampleArray;

        case GL_SAMPLER_2D_RECT_ANGLE:
            return TextureType::Rectangle;

        default:
            UNREACHABLE();
            return TextureType::InvalidEnum;
    }
}

bool IsMultisampled(gl::TextureType type)
{
    switch (type)
    {
        case gl::TextureType::_2DMultisample:
        case gl::TextureType::_2DMultisampleArray:
            return true;
        default:
            return false;
    }
}

std::ostream &operator<<(std::ostream &os, PrimitiveMode value)
{
    switch (value)
    {
        case PrimitiveMode::LineLoop:
            os << "GL_LINE_LOOP";
            break;
        case PrimitiveMode::Lines:
            os << "GL_LINES";
            break;
        case PrimitiveMode::LinesAdjacency:
            os << "GL_LINES_ADJACENCY";
            break;
        case PrimitiveMode::LineStrip:
            os << "GL_LINE_STRIP";
            break;
        case PrimitiveMode::LineStripAdjacency:
            os << "GL_LINE_STRIP_ADJANCENCY";
            break;
        case PrimitiveMode::Points:
            os << "GL_POINTS";
            break;
        case PrimitiveMode::TriangleFan:
            os << "GL_TRIANGLE_FAN";
            break;
        case PrimitiveMode::Triangles:
            os << "GL_TRIANGLES";
            break;
        case PrimitiveMode::TrianglesAdjacency:
            os << "GL_TRIANGLES_ADJANCENCY";
            break;
        case PrimitiveMode::TriangleStrip:
            os << "GL_TRIANGLE_STRIP";
            break;
        case PrimitiveMode::TriangleStripAdjacency:
            os << "GL_TRIANGLE_STRIP_ADJACENCY";
            break;
        default:
            os << "GL_INVALID_ENUM";
            break;
    }
    return os;
}

std::ostream &operator<<(std::ostream &os, DrawElementsType value)
{
    switch (value)
    {
        case DrawElementsType::UnsignedByte:
            os << "GL_UNSIGNED_BYTE";
            break;
        case DrawElementsType::UnsignedShort:
            os << "GL_UNSIGNED_SHORT";
            break;
        case DrawElementsType::UnsignedInt:
            os << "GL_UNSIGNED_INT";
            break;
        default:
            os << "GL_INVALID_ENUM";
            break;
    }

    return os;
}

std::ostream &operator<<(std::ostream &os, VertexAttribType value)
{
    switch (value)
    {
        case VertexAttribType::Byte:
            os << "GL_UNSIGNED_BYTE";
            break;
        case VertexAttribType::Fixed:
            os << "GL_FIXED";
            break;
        case VertexAttribType::Float:
            os << "GL_FLOAT";
            break;
        case VertexAttribType::HalfFloat:
            os << "GL_HALF_FLOAT";
            break;
        case VertexAttribType::Int:
            os << "GL_INT";
            break;
        case VertexAttribType::Int2101010:
            os << "GL_INT_10_10_10_2";
            break;
        case VertexAttribType::Short:
            os << "GL_SHORT";
            break;
        case VertexAttribType::UnsignedByte:
            os << "GL_UNSIGNED_BYTE";
            break;
        case VertexAttribType::UnsignedInt:
            os << "GL_UNSIGNED_INT";
            break;
        case VertexAttribType::UnsignedInt2101010:
            os << "GL_UNSIGNED_INT_10_10_10_2";
            break;
        case VertexAttribType::UnsignedShort:
            os << "GL_UNSIGNED_SHORT";
            break;
        default:
            os << "GL_INVALID_ENUM";
            break;
    }
    return os;
}
}  // namespace gl

namespace egl
{
MessageType ErrorCodeToMessageType(EGLint errorCode)
{
    switch (errorCode)
    {
        case EGL_BAD_ALLOC:
        case EGL_CONTEXT_LOST:
        case EGL_NOT_INITIALIZED:
            return MessageType::Critical;

        case EGL_BAD_ACCESS:
        case EGL_BAD_ATTRIBUTE:
        case EGL_BAD_CONFIG:
        case EGL_BAD_CONTEXT:
        case EGL_BAD_CURRENT_SURFACE:
        case EGL_BAD_DISPLAY:
        case EGL_BAD_MATCH:
        case EGL_BAD_NATIVE_PIXMAP:
        case EGL_BAD_NATIVE_WINDOW:
        case EGL_BAD_PARAMETER:
        case EGL_BAD_SURFACE:
        case EGL_BAD_STREAM_KHR:
        case EGL_BAD_STATE_KHR:
        case EGL_BAD_DEVICE_EXT:
            return MessageType::Error;

        case EGL_SUCCESS:
        default:
            UNREACHABLE();
            return MessageType::InvalidEnum;
    }
}
}  // namespace egl

namespace egl_gl
{

gl::TextureTarget EGLCubeMapTargetToCubeMapTarget(EGLenum eglTarget)
{
    ASSERT(egl::IsCubeMapTextureTarget(eglTarget));
    return gl::CubeFaceIndexToTextureTarget(egl::CubeMapTextureTargetToLayerIndex(eglTarget));
}

gl::TextureTarget EGLImageTargetToTextureTarget(EGLenum eglTarget)
{
    switch (eglTarget)
    {
        case EGL_GL_TEXTURE_2D_KHR:
            return gl::TextureTarget::_2D;

        case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
        case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
        case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
        case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
        case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
        case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
            return EGLCubeMapTargetToCubeMapTarget(eglTarget);

        case EGL_GL_TEXTURE_3D_KHR:
            return gl::TextureTarget::_3D;

        default:
            UNREACHABLE();
            return gl::TextureTarget::InvalidEnum;
    }
}

gl::TextureType EGLTextureTargetToTextureType(EGLenum eglTarget)
{
    switch (eglTarget)
    {
        case EGL_TEXTURE_2D:
            return gl::TextureType::_2D;

        case EGL_TEXTURE_RECTANGLE_ANGLE:
            return gl::TextureType::Rectangle;

        default:
            UNREACHABLE();
            return gl::TextureType::InvalidEnum;
    }
}

}  // namespace egl_gl
kc3-lang/angle/src/common/PackedEnums.cpp

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kc3-lang/angle /src/common/PackedEnums.cpp
