michael@0: #include "precompiled.h"
michael@0: //
michael@0: // Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: //
michael@0: 
michael@0: // TextureStorage.cpp: Implements the abstract rx::TextureStorageInterface class and its concrete derived
michael@0: // classes TextureStorageInterface2D and TextureStorageInterfaceCube, which act as the interface to the
michael@0: // GPU-side texture.
michael@0: 
michael@0: #include "libGLESv2/renderer/TextureStorage.h"
michael@0: #include "libGLESv2/renderer/Renderer.h"
michael@0: #include "libGLESv2/Renderbuffer.h"
michael@0: #include "libGLESv2/Texture.h"
michael@0: 
michael@0: #include "common/debug.h"
michael@0: 
michael@0: namespace rx
michael@0: {
michael@0: unsigned int TextureStorageInterface::mCurrentTextureSerial = 1;
michael@0: 
michael@0: TextureStorageInterface::TextureStorageInterface()
michael@0:     : mTextureSerial(issueTextureSerial()),
michael@0:       mInstance(NULL)
michael@0: {
michael@0: }
michael@0: 
michael@0: TextureStorageInterface::~TextureStorageInterface()
michael@0: {
michael@0:     delete mInstance;
michael@0: }
michael@0: 
michael@0: bool TextureStorageInterface::isRenderTarget() const
michael@0: {
michael@0:     return mInstance->isRenderTarget();
michael@0: }
michael@0: 
michael@0: 
michael@0: bool TextureStorageInterface::isManaged() const
michael@0: {
michael@0:     return mInstance->isManaged();
michael@0: }
michael@0: 
michael@0: unsigned int TextureStorageInterface::getTextureSerial() const
michael@0: {
michael@0:     return mTextureSerial;
michael@0: }
michael@0: 
michael@0: unsigned int TextureStorageInterface::issueTextureSerial()
michael@0: {
michael@0:     return mCurrentTextureSerial++;
michael@0: }
michael@0: 
michael@0: int TextureStorageInterface::getLodOffset() const
michael@0: {
michael@0:     return mInstance->getLodOffset();
michael@0: }
michael@0: 
michael@0: 
michael@0: int TextureStorageInterface::levelCount()
michael@0: {
michael@0:     return mInstance->levelCount();
michael@0: }
michael@0: 
michael@0: TextureStorageInterface2D::TextureStorageInterface2D(Renderer *renderer, SwapChain *swapchain) 
michael@0:     : mRenderTargetSerial(gl::RenderbufferStorage::issueSerial())
michael@0: {
michael@0:     mInstance = renderer->createTextureStorage2D(swapchain);
michael@0: }
michael@0: 
michael@0: TextureStorageInterface2D::TextureStorageInterface2D(Renderer *renderer, int levels, GLenum internalformat, GLenum usage, bool forceRenderable, GLsizei width, GLsizei height)
michael@0:     : mRenderTargetSerial(gl::RenderbufferStorage::issueSerial())
michael@0: {
michael@0:     mInstance = renderer->createTextureStorage2D(levels, internalformat, usage, forceRenderable, width, height);
michael@0: }
michael@0: 
michael@0: TextureStorageInterface2D::~TextureStorageInterface2D()
michael@0: {
michael@0: }
michael@0: 
michael@0: RenderTarget *TextureStorageInterface2D::getRenderTarget() const
michael@0: {
michael@0:     return mInstance->getRenderTarget();
michael@0: }
michael@0: 
michael@0: void TextureStorageInterface2D::generateMipmap(int level)
michael@0: {
michael@0:     mInstance->generateMipmap(level);
michael@0: }
michael@0: 
michael@0: unsigned int TextureStorageInterface2D::getRenderTargetSerial(GLenum target) const
michael@0: {
michael@0:     return mRenderTargetSerial;
michael@0: }
michael@0: 
michael@0: TextureStorageInterfaceCube::TextureStorageInterfaceCube(Renderer *renderer, int levels, GLenum internalformat, GLenum usage, bool forceRenderable, int size)
michael@0:     : mFirstRenderTargetSerial(gl::RenderbufferStorage::issueCubeSerials())
michael@0: {
michael@0:     mInstance = renderer->createTextureStorageCube(levels, internalformat, usage, forceRenderable, size);
michael@0: }
michael@0: 
michael@0: TextureStorageInterfaceCube::~TextureStorageInterfaceCube()
michael@0: {
michael@0: }
michael@0: 
michael@0: RenderTarget *TextureStorageInterfaceCube::getRenderTarget(GLenum faceTarget) const
michael@0: {
michael@0:     return mInstance->getRenderTarget(faceTarget);
michael@0: }
michael@0: 
michael@0: void TextureStorageInterfaceCube::generateMipmap(int face, int level)
michael@0: {
michael@0:     mInstance->generateMipmap(face, level);
michael@0: }
michael@0: 
michael@0: unsigned int TextureStorageInterfaceCube::getRenderTargetSerial(GLenum target) const
michael@0: {
michael@0:     return mFirstRenderTargetSerial + gl::TextureCubeMap::faceIndex(target);
michael@0: }
michael@0: 
michael@0: }