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//
// 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.
//
// Format:
// A universal description of texture storage. Across multiple
// renderer back-ends, there are common formats and some distinct
// permutations, this enum encapsulates them all.
#include "libANGLE/renderer/Format.h"
#include "image_util/copyimage.h"
using namespace rx;
namespace angle
{
namespace
{
const FastCopyFunctionMap &GetFastCopyFunctionsMap(Format::ID formatID)
{
switch (formatID)
{
case Format::ID::B8G8R8A8_UNORM:
{
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wexit-time-destructors"
static FastCopyFunctionMap fastCopyMap;
#pragma clang diagnostic pop
if (fastCopyMap.empty())
{
fastCopyMap[gl::FormatType(GL_RGBA, GL_UNSIGNED_BYTE)] = CopyBGRA8ToRGBA8;
}
return fastCopyMap;
}
default:
{
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wexit-time-destructors"
static FastCopyFunctionMap emptyMap;
#pragma clang diagnostic pop
return emptyMap;
}
}
}
} // anonymous namespace
Format::Format(ID id,
GLenum glFormat,
GLenum fboFormat,
MipGenerationFunction mipGen,
ColorReadFunction colorRead,
GLenum componentType,
GLuint redBits,
GLuint greenBits,
GLuint blueBits,
GLuint alphaBits,
GLuint depthBits,
GLuint stencilBits)
: id(id),
glInternalFormat(glFormat),
fboImplementationInternalFormat(fboFormat),
mipGenerationFunction(mipGen),
colorReadFunction(colorRead),
fastCopyFunctions(GetFastCopyFunctionsMap(id)),
componentType(componentType),
redBits(redBits),
greenBits(greenBits),
blueBits(blueBits),
alphaBits(alphaBits),
depthBits(depthBits),
stencilBits(stencilBits)
{
}
} // namespace angle
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