Hash :
8040f57d
Author :
Date :
2013-07-25T16:49:54
Updated Renderbuffers, Textures and TextureStorageInterface to be aware of render targets which are based on miplevels and layers other than zero. TRAC #23470 Signed-off-by: Jamie Madill Signed-off-by: Shannon Woods Author: Geoff Lang
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#include "precompiled.h"
//
// Copyright (c) 2002-2013 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.
//
// TextureStorage.cpp: Implements the abstract rx::TextureStorageInterface class and its concrete derived
// classes TextureStorageInterface2D and TextureStorageInterfaceCube, which act as the interface to the
// GPU-side texture.
#include "libGLESv2/renderer/TextureStorage.h"
#include "libGLESv2/renderer/Renderer.h"
#include "libGLESv2/Renderbuffer.h"
#include "libGLESv2/Texture.h"
#include "common/debug.h"
#include "common/mathutil.h"
namespace rx
{
unsigned int TextureStorageInterface::mCurrentTextureSerial = 1;
TextureStorageInterface::TextureStorageInterface()
: mTextureSerial(issueTextureSerial()),
mInstance(NULL)
{
}
TextureStorageInterface::~TextureStorageInterface()
{
delete mInstance;
}
bool TextureStorageInterface::isRenderTarget() const
{
return mInstance->isRenderTarget();
}
bool TextureStorageInterface::isManaged() const
{
return mInstance->isManaged();
}
unsigned int TextureStorageInterface::getTextureSerial() const
{
return mTextureSerial;
}
unsigned int TextureStorageInterface::issueTextureSerial()
{
return mCurrentTextureSerial++;
}
int TextureStorageInterface::getLodOffset() const
{
return mInstance->getLodOffset();
}
int TextureStorageInterface::levelCount()
{
return mInstance->levelCount();
}
static unsigned int GetActualLevelCount(GLsizei width, GLsizei height, GLsizei depth, GLint levelCount)
{
return (levelCount <= 0) ? std::max(std::max(gl::log2(width), gl::log2(height)), gl::log2(depth)) : levelCount;
}
TextureStorageInterface2D::TextureStorageInterface2D(Renderer *renderer, SwapChain *swapchain)
{
mFirstRenderTargetSerial = gl::RenderbufferStorage::issueSerials(1);
mInstance = renderer->createTextureStorage2D(swapchain);
}
TextureStorageInterface2D::TextureStorageInterface2D(Renderer *renderer, int levels, GLenum internalformat, GLenum usage, bool forceRenderable, GLsizei width, GLsizei height)
{
unsigned int actualLevels = GetActualLevelCount(width, height, 0, levels);
mFirstRenderTargetSerial = gl::RenderbufferStorage::issueSerials(actualLevels);
mInstance = renderer->createTextureStorage2D(levels, internalformat, usage, forceRenderable, width, height);
}
TextureStorageInterface2D::~TextureStorageInterface2D()
{
}
RenderTarget *TextureStorageInterface2D::getRenderTarget(GLint level) const
{
return mInstance->getRenderTarget(level);
}
void TextureStorageInterface2D::generateMipmap(int level)
{
mInstance->generateMipmap(level);
}
unsigned int TextureStorageInterface2D::getRenderTargetSerial(GLint level) const
{
return mFirstRenderTargetSerial + level;
}
TextureStorageInterfaceCube::TextureStorageInterfaceCube(Renderer *renderer, int levels, GLenum internalformat, GLenum usage, bool forceRenderable, int size)
{
unsigned int actualLevels = GetActualLevelCount(size, size, 0, levels);
mFirstRenderTargetSerial = gl::RenderbufferStorage::issueSerials(actualLevels * 6);
mInstance = renderer->createTextureStorageCube(levels, internalformat, usage, forceRenderable, size);
}
TextureStorageInterfaceCube::~TextureStorageInterfaceCube()
{
}
RenderTarget *TextureStorageInterfaceCube::getRenderTarget(GLenum faceTarget, GLint level) const
{
return mInstance->getRenderTargetFace(faceTarget, level);
}
void TextureStorageInterfaceCube::generateMipmap(int face, int level)
{
mInstance->generateMipmap(face, level);
}
unsigned int TextureStorageInterfaceCube::getRenderTargetSerial(GLenum target, GLint level) const
{
return mFirstRenderTargetSerial + (level * 6) + gl::TextureCubeMap::faceIndex(target);
}
TextureStorageInterface3D::TextureStorageInterface3D(Renderer *renderer, int levels, GLenum internalformat, GLenum usage,
GLsizei width, GLsizei height, GLsizei depth)
{
mLevels = GetActualLevelCount(width, height, depth, levels);
mFirstRenderTargetSerial = gl::RenderbufferStorage::issueSerials(mLevels * depth);
mInstance = renderer->createTextureStorage3D(levels, internalformat, usage, width, height, depth);
}
TextureStorageInterface3D::~TextureStorageInterface3D()
{
}
void TextureStorageInterface3D::generateMipmap(int level)
{
mInstance->generateMipmap(level);
}
RenderTarget *TextureStorageInterface3D::getRenderTarget(GLint level, GLint layer) const
{
return mInstance->getRenderTargetLayer(level, layer);
}
unsigned int TextureStorageInterface3D::getRenderTargetSerial(GLint level, GLint layer) const
{
return mFirstRenderTargetSerial + (layer * mLevels) + level;
}
TextureStorageInterface2DArray::TextureStorageInterface2DArray(Renderer *renderer, int levels, GLenum internalformat, GLenum usage,
GLsizei width, GLsizei height, GLsizei depth)
{
mLevels = GetActualLevelCount(width, height, 0, levels);
mFirstRenderTargetSerial = gl::RenderbufferStorage::issueSerials(mLevels * depth);
mInstance = renderer->createTextureStorage2DArray(levels, internalformat, usage, width, height, depth);
}
TextureStorageInterface2DArray::~TextureStorageInterface2DArray()
{
}
void TextureStorageInterface2DArray::generateMipmap(int level)
{
mInstance->generateMipmap(level);
}
RenderTarget *TextureStorageInterface2DArray::getRenderTarget(GLint level, GLint layer) const
{
return mInstance->getRenderTargetLayer(level, layer);
}
unsigned int TextureStorageInterface2DArray::getRenderTargetSerial(GLint level, GLint layer) const
{
return mFirstRenderTargetSerial + (layer * mLevels) + level;
}
}