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: // Image9.cpp: Implements the rx::Image9 class, which acts as the interface to
michael@0: // the actual underlying surfaces of a Texture.
michael@0: 
michael@0: #include "libGLESv2/renderer/Image9.h"
michael@0: 
michael@0: #include "libGLESv2/main.h"
michael@0: #include "libGLESv2/Framebuffer.h"
michael@0: #include "libGLESv2/Renderbuffer.h"
michael@0: #include "libGLESv2/renderer/Renderer9.h"
michael@0: #include "libGLESv2/renderer/RenderTarget9.h"
michael@0: #include "libGLESv2/renderer/TextureStorage9.h"
michael@0: 
michael@0: #include "libGLESv2/renderer/renderer9_utils.h"
michael@0: #include "libGLESv2/renderer/generatemip.h"
michael@0: 
michael@0: namespace rx
michael@0: {
michael@0: 
michael@0: Image9::Image9()
michael@0: {
michael@0:     mSurface = NULL;
michael@0:     mRenderer = NULL;
michael@0: 
michael@0:     mD3DPool = D3DPOOL_SYSTEMMEM;
michael@0:     mD3DFormat = D3DFMT_UNKNOWN;
michael@0: }
michael@0: 
michael@0: Image9::~Image9()
michael@0: {
michael@0:     if (mSurface)
michael@0:     {
michael@0:         mSurface->Release();
michael@0:     }
michael@0: }
michael@0: 
michael@0: void Image9::generateMip(IDirect3DSurface9 *destSurface, IDirect3DSurface9 *sourceSurface)
michael@0: {
michael@0:     D3DSURFACE_DESC destDesc;
michael@0:     HRESULT result = destSurface->GetDesc(&destDesc);
michael@0:     ASSERT(SUCCEEDED(result));
michael@0: 
michael@0:     D3DSURFACE_DESC sourceDesc;
michael@0:     result = sourceSurface->GetDesc(&sourceDesc);
michael@0:     ASSERT(SUCCEEDED(result));
michael@0: 
michael@0:     ASSERT(sourceDesc.Format == destDesc.Format);
michael@0:     ASSERT(sourceDesc.Width == 1 || sourceDesc.Width / 2 == destDesc.Width);
michael@0:     ASSERT(sourceDesc.Height == 1 || sourceDesc.Height / 2 == destDesc.Height);
michael@0: 
michael@0:     D3DLOCKED_RECT sourceLocked = {0};
michael@0:     result = sourceSurface->LockRect(&sourceLocked, NULL, D3DLOCK_READONLY);
michael@0:     ASSERT(SUCCEEDED(result));
michael@0: 
michael@0:     D3DLOCKED_RECT destLocked = {0};
michael@0:     result = destSurface->LockRect(&destLocked, NULL, 0);
michael@0:     ASSERT(SUCCEEDED(result));
michael@0: 
michael@0:     const unsigned char *sourceData = reinterpret_cast<const unsigned char*>(sourceLocked.pBits);
michael@0:     unsigned char *destData = reinterpret_cast<unsigned char*>(destLocked.pBits);
michael@0: 
michael@0:     if (sourceData && destData)
michael@0:     {
michael@0:         switch (sourceDesc.Format)
michael@0:         {
michael@0:           case D3DFMT_L8:
michael@0:             GenerateMip<L8>(sourceDesc.Width, sourceDesc.Height, sourceData, sourceLocked.Pitch, destData, destLocked.Pitch);
michael@0:             break;
michael@0:           case D3DFMT_A8L8:
michael@0:             GenerateMip<A8L8>(sourceDesc.Width, sourceDesc.Height, sourceData, sourceLocked.Pitch, destData, destLocked.Pitch);
michael@0:             break;
michael@0:           case D3DFMT_A8R8G8B8:
michael@0:           case D3DFMT_X8R8G8B8:
michael@0:             GenerateMip<A8R8G8B8>(sourceDesc.Width, sourceDesc.Height, sourceData, sourceLocked.Pitch, destData, destLocked.Pitch);
michael@0:             break;
michael@0:           case D3DFMT_A16B16G16R16F:
michael@0:             GenerateMip<A16B16G16R16F>(sourceDesc.Width, sourceDesc.Height, sourceData, sourceLocked.Pitch, destData, destLocked.Pitch);
michael@0:             break;
michael@0:           case D3DFMT_A32B32G32R32F:
michael@0:             GenerateMip<A32B32G32R32F>(sourceDesc.Width, sourceDesc.Height, sourceData, sourceLocked.Pitch, destData, destLocked.Pitch);
michael@0:             break;
michael@0:           default:
michael@0:             UNREACHABLE();
michael@0:             break;
michael@0:         }
michael@0: 
michael@0:         destSurface->UnlockRect();
michael@0:         sourceSurface->UnlockRect();
michael@0:     }
michael@0: }
michael@0: 
michael@0: Image9 *Image9::makeImage9(Image *img)
michael@0: {
michael@0:     ASSERT(HAS_DYNAMIC_TYPE(rx::Image9*, img));
michael@0:     return static_cast<rx::Image9*>(img);
michael@0: }
michael@0: 
michael@0: void Image9::generateMipmap(Image9 *dest, Image9 *source)
michael@0: {
michael@0:     IDirect3DSurface9 *sourceSurface = source->getSurface();
michael@0:     if (sourceSurface == NULL)
michael@0:         return gl::error(GL_OUT_OF_MEMORY);
michael@0: 
michael@0:     IDirect3DSurface9 *destSurface = dest->getSurface();
michael@0:     generateMip(destSurface, sourceSurface);
michael@0: 
michael@0:     dest->markDirty();
michael@0: }
michael@0: 
michael@0: void Image9::copyLockableSurfaces(IDirect3DSurface9 *dest, IDirect3DSurface9 *source)
michael@0: {
michael@0:     D3DLOCKED_RECT sourceLock = {0};
michael@0:     D3DLOCKED_RECT destLock = {0};
michael@0:     
michael@0:     source->LockRect(&sourceLock, NULL, 0);
michael@0:     dest->LockRect(&destLock, NULL, 0);
michael@0:     
michael@0:     if (sourceLock.pBits && destLock.pBits)
michael@0:     {
michael@0:         D3DSURFACE_DESC desc;
michael@0:         source->GetDesc(&desc);
michael@0: 
michael@0:         int rows = d3d9::IsCompressedFormat(desc.Format) ? desc.Height / 4 : desc.Height;
michael@0:         int bytes = d3d9::ComputeRowSize(desc.Format, desc.Width);
michael@0:         ASSERT(bytes <= sourceLock.Pitch && bytes <= destLock.Pitch);
michael@0: 
michael@0:         for(int i = 0; i < rows; i++)
michael@0:         {
michael@0:             memcpy((char*)destLock.pBits + destLock.Pitch * i, (char*)sourceLock.pBits + sourceLock.Pitch * i, bytes);
michael@0:         }
michael@0: 
michael@0:         source->UnlockRect();
michael@0:         dest->UnlockRect();
michael@0:     }
michael@0:     else UNREACHABLE();
michael@0: }
michael@0: 
michael@0: bool Image9::redefine(rx::Renderer *renderer, GLint internalformat, GLsizei width, GLsizei height, bool forceRelease)
michael@0: {
michael@0:     if (mWidth != width ||
michael@0:         mHeight != height ||
michael@0:         mInternalFormat != internalformat ||
michael@0:         forceRelease)
michael@0:     {
michael@0:         mRenderer = Renderer9::makeRenderer9(renderer);
michael@0: 
michael@0:         mWidth = width;
michael@0:         mHeight = height;
michael@0:         mInternalFormat = internalformat;
michael@0:         // compute the d3d format that will be used
michael@0:         mD3DFormat = mRenderer->ConvertTextureInternalFormat(internalformat);
michael@0:         mActualFormat = d3d9_gl::GetEquivalentFormat(mD3DFormat);
michael@0: 
michael@0:         if (mSurface)
michael@0:         {
michael@0:             mSurface->Release();
michael@0:             mSurface = NULL;
michael@0:         }
michael@0: 
michael@0:         return true;
michael@0:     }
michael@0: 
michael@0:     return false;
michael@0: }
michael@0: 
michael@0: void Image9::createSurface()
michael@0: {
michael@0:     if(mSurface)
michael@0:     {
michael@0:         return;
michael@0:     }
michael@0: 
michael@0:     IDirect3DTexture9 *newTexture = NULL;
michael@0:     IDirect3DSurface9 *newSurface = NULL;
michael@0:     const D3DPOOL poolToUse = D3DPOOL_SYSTEMMEM;
michael@0:     const D3DFORMAT d3dFormat = getD3DFormat();
michael@0:     ASSERT(d3dFormat != D3DFMT_INTZ); // We should never get here for depth textures
michael@0: 
michael@0:     if (mWidth != 0 && mHeight != 0)
michael@0:     {
michael@0:         int levelToFetch = 0;
michael@0:         GLsizei requestWidth = mWidth;
michael@0:         GLsizei requestHeight = mHeight;
michael@0:         gl::MakeValidSize(true, gl::IsCompressed(mInternalFormat), &requestWidth, &requestHeight, &levelToFetch);
michael@0: 
michael@0:         IDirect3DDevice9 *device = mRenderer->getDevice();
michael@0: 
michael@0:         HRESULT result = device->CreateTexture(requestWidth, requestHeight, levelToFetch + 1, 0, d3dFormat,
michael@0:                                                     poolToUse, &newTexture, NULL);
michael@0: 
michael@0:         if (FAILED(result))
michael@0:         {
michael@0:             ASSERT(result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY);
michael@0:             ERR("Creating image surface failed.");
michael@0:             return gl::error(GL_OUT_OF_MEMORY);
michael@0:         }
michael@0: 
michael@0:         newTexture->GetSurfaceLevel(levelToFetch, &newSurface);
michael@0:         newTexture->Release();
michael@0:     }
michael@0: 
michael@0:     mSurface = newSurface;
michael@0:     mDirty = false;
michael@0:     mD3DPool = poolToUse;
michael@0: }
michael@0: 
michael@0: HRESULT Image9::lock(D3DLOCKED_RECT *lockedRect, const RECT *rect)
michael@0: {
michael@0:     createSurface();
michael@0: 
michael@0:     HRESULT result = D3DERR_INVALIDCALL;
michael@0: 
michael@0:     if (mSurface)
michael@0:     {
michael@0:         result = mSurface->LockRect(lockedRect, rect, 0);
michael@0:         ASSERT(SUCCEEDED(result));
michael@0: 
michael@0:         mDirty = true;
michael@0:     }
michael@0: 
michael@0:     return result;
michael@0: }
michael@0: 
michael@0: void Image9::unlock()
michael@0: {
michael@0:     if (mSurface)
michael@0:     {
michael@0:         HRESULT result = mSurface->UnlockRect();
michael@0:         ASSERT(SUCCEEDED(result));
michael@0:     }
michael@0: }
michael@0: 
michael@0: bool Image9::isRenderableFormat() const
michael@0: {    
michael@0:     return TextureStorage9::IsTextureFormatRenderable(getD3DFormat());
michael@0: }
michael@0: 
michael@0: D3DFORMAT Image9::getD3DFormat() const
michael@0: {
michael@0:     // this should only happen if the image hasn't been redefined first
michael@0:     // which would be a bug by the caller
michael@0:     ASSERT(mD3DFormat != D3DFMT_UNKNOWN);
michael@0: 
michael@0:     return mD3DFormat;
michael@0: }
michael@0: 
michael@0: IDirect3DSurface9 *Image9::getSurface()
michael@0: {
michael@0:     createSurface();
michael@0: 
michael@0:     return mSurface;
michael@0: }
michael@0: 
michael@0: void Image9::setManagedSurface(TextureStorageInterface2D *storage, int level)
michael@0: {
michael@0:     TextureStorage9_2D *storage9 = TextureStorage9_2D::makeTextureStorage9_2D(storage->getStorageInstance());
michael@0:     setManagedSurface(storage9->getSurfaceLevel(level, false));
michael@0: }
michael@0: 
michael@0: void Image9::setManagedSurface(TextureStorageInterfaceCube *storage, int face, int level)
michael@0: {
michael@0:     TextureStorage9_Cube *storage9 = TextureStorage9_Cube::makeTextureStorage9_Cube(storage->getStorageInstance());
michael@0:     setManagedSurface(storage9->getCubeMapSurface(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, level, false));
michael@0: }
michael@0: 
michael@0: void Image9::setManagedSurface(IDirect3DSurface9 *surface)
michael@0: {
michael@0:     D3DSURFACE_DESC desc;
michael@0:     surface->GetDesc(&desc);
michael@0:     ASSERT(desc.Pool == D3DPOOL_MANAGED);
michael@0: 
michael@0:     if ((GLsizei)desc.Width == mWidth && (GLsizei)desc.Height == mHeight)
michael@0:     {
michael@0:         if (mSurface)
michael@0:         {
michael@0:             copyLockableSurfaces(surface, mSurface);
michael@0:             mSurface->Release();
michael@0:         }
michael@0: 
michael@0:         mSurface = surface;
michael@0:         mD3DPool = desc.Pool;
michael@0:     }
michael@0: }
michael@0: 
michael@0: bool Image9::updateSurface(TextureStorageInterface2D *storage, int level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height)
michael@0: {
michael@0:     ASSERT(getSurface() != NULL);
michael@0:     TextureStorage9_2D *storage9 = TextureStorage9_2D::makeTextureStorage9_2D(storage->getStorageInstance());
michael@0:     return updateSurface(storage9->getSurfaceLevel(level, true), xoffset, yoffset, width, height);
michael@0: }
michael@0: 
michael@0: bool Image9::updateSurface(TextureStorageInterfaceCube *storage, int face, int level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height)
michael@0: {
michael@0:     ASSERT(getSurface() != NULL);
michael@0:     TextureStorage9_Cube *storage9 = TextureStorage9_Cube::makeTextureStorage9_Cube(storage->getStorageInstance());
michael@0:     return updateSurface(storage9->getCubeMapSurface(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, level, true), xoffset, yoffset, width, height);
michael@0: }
michael@0: 
michael@0: bool Image9::updateSurface(IDirect3DSurface9 *destSurface, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height)
michael@0: {
michael@0:     if (!destSurface)
michael@0:         return false;
michael@0: 
michael@0:     IDirect3DSurface9 *sourceSurface = getSurface();
michael@0: 
michael@0:     if (sourceSurface && sourceSurface != destSurface)
michael@0:     {
michael@0:         RECT rect;
michael@0:         rect.left = xoffset;
michael@0:         rect.top = yoffset;
michael@0:         rect.right = xoffset + width;
michael@0:         rect.bottom = yoffset + height;
michael@0: 
michael@0:         POINT point = {rect.left, rect.top};
michael@0: 
michael@0:         IDirect3DDevice9 *device = mRenderer->getDevice();
michael@0: 
michael@0:         if (mD3DPool == D3DPOOL_MANAGED)
michael@0:         {
michael@0:             D3DSURFACE_DESC desc;
michael@0:             sourceSurface->GetDesc(&desc);
michael@0: 
michael@0:             IDirect3DSurface9 *surf = 0;
michael@0:             HRESULT result = device->CreateOffscreenPlainSurface(desc.Width, desc.Height, desc.Format, D3DPOOL_SYSTEMMEM, &surf, NULL);
michael@0: 
michael@0:             if (SUCCEEDED(result))
michael@0:             {
michael@0:                 copyLockableSurfaces(surf, sourceSurface);
michael@0:                 result = device->UpdateSurface(surf, &rect, destSurface, &point);
michael@0:                 ASSERT(SUCCEEDED(result));
michael@0:                 surf->Release();
michael@0:             }
michael@0:         }
michael@0:         else
michael@0:         {
michael@0:             // UpdateSurface: source must be SYSTEMMEM, dest must be DEFAULT pools 
michael@0:             HRESULT result = device->UpdateSurface(sourceSurface, &rect, destSurface, &point);
michael@0:             ASSERT(SUCCEEDED(result));
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     destSurface->Release();
michael@0:     return true;
michael@0: }
michael@0: 
michael@0: // Store the pixel rectangle designated by xoffset,yoffset,width,height with pixels stored as format/type at input
michael@0: // into the target pixel rectangle.
michael@0: void Image9::loadData(GLint xoffset, GLint yoffset, GLsizei width, GLsizei height,
michael@0:                       GLint unpackAlignment, const void *input)
michael@0: {
michael@0:     RECT lockRect =
michael@0:     {
michael@0:         xoffset, yoffset,
michael@0:         xoffset + width, yoffset + height
michael@0:     };
michael@0: 
michael@0:     D3DLOCKED_RECT locked;
michael@0:     HRESULT result = lock(&locked, &lockRect);
michael@0:     if (FAILED(result))
michael@0:     {
michael@0:         return;
michael@0:     }
michael@0: 
michael@0: 
michael@0:     GLsizei inputPitch = gl::ComputePitch(width, mInternalFormat, unpackAlignment);
michael@0: 
michael@0:     switch (mInternalFormat)
michael@0:     {
michael@0:       case GL_ALPHA8_EXT:
michael@0:         if (gl::supportsSSE2())
michael@0:         {
michael@0:             loadAlphaDataToBGRASSE2(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         }
michael@0:         else
michael@0:         {
michael@0:             loadAlphaDataToBGRA(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         }
michael@0:         break;
michael@0:       case GL_LUMINANCE8_EXT:
michael@0:         loadLuminanceDataToNativeOrBGRA(width, height, inputPitch, input, locked.Pitch, locked.pBits, getD3DFormat() == D3DFMT_L8);
michael@0:         break;
michael@0:       case GL_ALPHA32F_EXT:
michael@0:         loadAlphaFloatDataToRGBA(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         break;
michael@0:       case GL_LUMINANCE32F_EXT:
michael@0:         loadLuminanceFloatDataToRGBA(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         break;
michael@0:       case GL_ALPHA16F_EXT:
michael@0:         loadAlphaHalfFloatDataToRGBA(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         break;
michael@0:       case GL_LUMINANCE16F_EXT:
michael@0:         loadLuminanceHalfFloatDataToRGBA(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         break;
michael@0:       case GL_LUMINANCE8_ALPHA8_EXT:
michael@0:         loadLuminanceAlphaDataToNativeOrBGRA(width, height, inputPitch, input, locked.Pitch, locked.pBits, getD3DFormat() == D3DFMT_A8L8);
michael@0:         break;
michael@0:       case GL_LUMINANCE_ALPHA32F_EXT:
michael@0:         loadLuminanceAlphaFloatDataToRGBA(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         break;
michael@0:       case GL_LUMINANCE_ALPHA16F_EXT:
michael@0:         loadLuminanceAlphaHalfFloatDataToRGBA(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         break;
michael@0:       case GL_RGB8_OES:
michael@0:         loadRGBUByteDataToBGRX(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         break;
michael@0:       case GL_RGB565:
michael@0:         loadRGB565DataToBGRA(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         break;
michael@0:       case GL_RGBA8_OES:
michael@0:         if (gl::supportsSSE2())
michael@0:         {
michael@0:             loadRGBAUByteDataToBGRASSE2(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         }
michael@0:         else
michael@0:         {
michael@0:             loadRGBAUByteDataToBGRA(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         }
michael@0:         break;
michael@0:       case GL_RGBA4:
michael@0:         loadRGBA4444DataToBGRA(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         break;
michael@0:       case GL_RGB5_A1:
michael@0:         loadRGBA5551DataToBGRA(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         break;
michael@0:       case GL_BGRA8_EXT:
michael@0:         loadBGRADataToBGRA(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         break;
michael@0:       // float textures are converted to RGBA, not BGRA, as they're stored that way in D3D
michael@0:       case GL_RGB32F_EXT:
michael@0:         loadRGBFloatDataToRGBA(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         break;
michael@0:       case GL_RGB16F_EXT:
michael@0:         loadRGBHalfFloatDataToRGBA(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         break;
michael@0:       case GL_RGBA32F_EXT:
michael@0:         loadRGBAFloatDataToRGBA(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         break;
michael@0:       case GL_RGBA16F_EXT:
michael@0:         loadRGBAHalfFloatDataToRGBA(width, height, inputPitch, input, locked.Pitch, locked.pBits);
michael@0:         break;
michael@0:       default: UNREACHABLE(); 
michael@0:     }
michael@0: 
michael@0:     unlock();
michael@0: }
michael@0: 
michael@0: void Image9::loadCompressedData(GLint xoffset, GLint yoffset, GLsizei width, GLsizei height,
michael@0:                                 const void *input)
michael@0: {
michael@0:     ASSERT(xoffset % 4 == 0);
michael@0:     ASSERT(yoffset % 4 == 0);
michael@0: 
michael@0:     RECT lockRect = {
michael@0:         xoffset, yoffset,
michael@0:         xoffset + width, yoffset + height
michael@0:     };
michael@0: 
michael@0:     D3DLOCKED_RECT locked;
michael@0:     HRESULT result = lock(&locked, &lockRect);
michael@0:     if (FAILED(result))
michael@0:     {
michael@0:         return;
michael@0:     }
michael@0: 
michael@0:     GLsizei inputSize = gl::ComputeCompressedSize(width, height, mInternalFormat);
michael@0:     GLsizei inputPitch = gl::ComputeCompressedPitch(width, mInternalFormat);
michael@0:     int rows = inputSize / inputPitch;
michael@0:     for (int i = 0; i < rows; ++i)
michael@0:     {
michael@0:         memcpy((void*)((BYTE*)locked.pBits + i * locked.Pitch), (void*)((BYTE*)input + i * inputPitch), inputPitch);
michael@0:     }
michael@0: 
michael@0:     unlock();
michael@0: }
michael@0: 
michael@0: // This implements glCopyTex[Sub]Image2D for non-renderable internal texture formats and incomplete textures
michael@0: void Image9::copy(GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height, gl::Framebuffer *source)
michael@0: {
michael@0:     RenderTarget9 *renderTarget = NULL;
michael@0:     IDirect3DSurface9 *surface = NULL;
michael@0:     gl::Renderbuffer *colorbuffer = source->getColorbuffer(0);
michael@0: 
michael@0:     if (colorbuffer)
michael@0:     {
michael@0:         renderTarget = RenderTarget9::makeRenderTarget9(colorbuffer->getRenderTarget());
michael@0:     }
michael@0:     
michael@0:     if (renderTarget)
michael@0:     {
michael@0:         surface = renderTarget->getSurface();
michael@0:     }
michael@0: 
michael@0:     if (!surface)
michael@0:     {
michael@0:         ERR("Failed to retrieve the render target.");
michael@0:         return gl::error(GL_OUT_OF_MEMORY);
michael@0:     }
michael@0: 
michael@0:     IDirect3DDevice9 *device = mRenderer->getDevice();
michael@0: 
michael@0:     IDirect3DSurface9 *renderTargetData = NULL;
michael@0:     D3DSURFACE_DESC description;
michael@0:     surface->GetDesc(&description);
michael@0:     
michael@0:     HRESULT result = device->CreateOffscreenPlainSurface(description.Width, description.Height, description.Format, D3DPOOL_SYSTEMMEM, &renderTargetData, NULL);
michael@0: 
michael@0:     if (FAILED(result))
michael@0:     {
michael@0:         ERR("Could not create matching destination surface.");
michael@0:         surface->Release();
michael@0:         return gl::error(GL_OUT_OF_MEMORY);
michael@0:     }
michael@0: 
michael@0:     result = device->GetRenderTargetData(surface, renderTargetData);
michael@0: 
michael@0:     if (FAILED(result))
michael@0:     {
michael@0:         ERR("GetRenderTargetData unexpectedly failed.");
michael@0:         renderTargetData->Release();
michael@0:         surface->Release();
michael@0:         return gl::error(GL_OUT_OF_MEMORY);
michael@0:     }
michael@0: 
michael@0:     RECT sourceRect = {x, y, x + width, y + height};
michael@0:     RECT destRect = {xoffset, yoffset, xoffset + width, yoffset + height};
michael@0: 
michael@0:     D3DLOCKED_RECT sourceLock = {0};
michael@0:     result = renderTargetData->LockRect(&sourceLock, &sourceRect, 0);
michael@0: 
michael@0:     if (FAILED(result))
michael@0:     {
michael@0:         ERR("Failed to lock the source surface (rectangle might be invalid).");
michael@0:         renderTargetData->Release();
michael@0:         surface->Release();
michael@0:         return gl::error(GL_OUT_OF_MEMORY);
michael@0:     }
michael@0: 
michael@0:     D3DLOCKED_RECT destLock = {0};
michael@0:     result = lock(&destLock, &destRect);
michael@0:     
michael@0:     if (FAILED(result))
michael@0:     {
michael@0:         ERR("Failed to lock the destination surface (rectangle might be invalid).");
michael@0:         renderTargetData->UnlockRect();
michael@0:         renderTargetData->Release();
michael@0:         surface->Release();
michael@0:         return gl::error(GL_OUT_OF_MEMORY);
michael@0:     }
michael@0: 
michael@0:     if (destLock.pBits && sourceLock.pBits)
michael@0:     {
michael@0:         unsigned char *source = (unsigned char*)sourceLock.pBits;
michael@0:         unsigned char *dest = (unsigned char*)destLock.pBits;
michael@0: 
michael@0:         switch (description.Format)
michael@0:         {
michael@0:           case D3DFMT_X8R8G8B8:
michael@0:           case D3DFMT_A8R8G8B8:
michael@0:             switch(getD3DFormat())
michael@0:             {
michael@0:               case D3DFMT_X8R8G8B8:
michael@0:               case D3DFMT_A8R8G8B8:
michael@0:                 for(int y = 0; y < height; y++)
michael@0:                 {
michael@0:                     memcpy(dest, source, 4 * width);
michael@0: 
michael@0:                     source += sourceLock.Pitch;
michael@0:                     dest += destLock.Pitch;
michael@0:                 }
michael@0:                 break;
michael@0:               case D3DFMT_L8:
michael@0:                 for(int y = 0; y < height; y++)
michael@0:                 {
michael@0:                     for(int x = 0; x < width; x++)
michael@0:                     {
michael@0:                         dest[x] = source[x * 4 + 2];
michael@0:                     }
michael@0: 
michael@0:                     source += sourceLock.Pitch;
michael@0:                     dest += destLock.Pitch;
michael@0:                 }
michael@0:                 break;
michael@0:               case D3DFMT_A8L8:
michael@0:                 for(int y = 0; y < height; y++)
michael@0:                 {
michael@0:                     for(int x = 0; x < width; x++)
michael@0:                     {
michael@0:                         dest[x * 2 + 0] = source[x * 4 + 2];
michael@0:                         dest[x * 2 + 1] = source[x * 4 + 3];
michael@0:                     }
michael@0: 
michael@0:                     source += sourceLock.Pitch;
michael@0:                     dest += destLock.Pitch;
michael@0:                 }
michael@0:                 break;
michael@0:               default:
michael@0:                 UNREACHABLE();
michael@0:             }
michael@0:             break;
michael@0:           case D3DFMT_R5G6B5:
michael@0:             switch(getD3DFormat())
michael@0:             {
michael@0:               case D3DFMT_X8R8G8B8:
michael@0:                 for(int y = 0; y < height; y++)
michael@0:                 {
michael@0:                     for(int x = 0; x < width; x++)
michael@0:                     {
michael@0:                         unsigned short rgb = ((unsigned short*)source)[x];
michael@0:                         unsigned char red = (rgb & 0xF800) >> 8;
michael@0:                         unsigned char green = (rgb & 0x07E0) >> 3;
michael@0:                         unsigned char blue = (rgb & 0x001F) << 3;
michael@0:                         dest[x + 0] = blue | (blue >> 5);
michael@0:                         dest[x + 1] = green | (green >> 6);
michael@0:                         dest[x + 2] = red | (red >> 5);
michael@0:                         dest[x + 3] = 0xFF;
michael@0:                     }
michael@0: 
michael@0:                     source += sourceLock.Pitch;
michael@0:                     dest += destLock.Pitch;
michael@0:                 }
michael@0:                 break;
michael@0:               case D3DFMT_L8:
michael@0:                 for(int y = 0; y < height; y++)
michael@0:                 {
michael@0:                     for(int x = 0; x < width; x++)
michael@0:                     {
michael@0:                         unsigned char red = source[x * 2 + 1] & 0xF8;
michael@0:                         dest[x] = red | (red >> 5);
michael@0:                     }
michael@0: 
michael@0:                     source += sourceLock.Pitch;
michael@0:                     dest += destLock.Pitch;
michael@0:                 }
michael@0:                 break;
michael@0:               default:
michael@0:                 UNREACHABLE();
michael@0:             }
michael@0:             break;
michael@0:           case D3DFMT_A1R5G5B5:
michael@0:             switch(getD3DFormat())
michael@0:             {
michael@0:               case D3DFMT_X8R8G8B8:
michael@0:                 for(int y = 0; y < height; y++)
michael@0:                 {
michael@0:                     for(int x = 0; x < width; x++)
michael@0:                     {
michael@0:                         unsigned short argb = ((unsigned short*)source)[x];
michael@0:                         unsigned char red = (argb & 0x7C00) >> 7;
michael@0:                         unsigned char green = (argb & 0x03E0) >> 2;
michael@0:                         unsigned char blue = (argb & 0x001F) << 3;
michael@0:                         dest[x + 0] = blue | (blue >> 5);
michael@0:                         dest[x + 1] = green | (green >> 5);
michael@0:                         dest[x + 2] = red | (red >> 5);
michael@0:                         dest[x + 3] = 0xFF;
michael@0:                     }
michael@0: 
michael@0:                     source += sourceLock.Pitch;
michael@0:                     dest += destLock.Pitch;
michael@0:                 }
michael@0:                 break;
michael@0:               case D3DFMT_A8R8G8B8:
michael@0:                 for(int y = 0; y < height; y++)
michael@0:                 {
michael@0:                     for(int x = 0; x < width; x++)
michael@0:                     {
michael@0:                         unsigned short argb = ((unsigned short*)source)[x];
michael@0:                         unsigned char red = (argb & 0x7C00) >> 7;
michael@0:                         unsigned char green = (argb & 0x03E0) >> 2;
michael@0:                         unsigned char blue = (argb & 0x001F) << 3;
michael@0:                         unsigned char alpha = (signed short)argb >> 15;
michael@0:                         dest[x + 0] = blue | (blue >> 5);
michael@0:                         dest[x + 1] = green | (green >> 5);
michael@0:                         dest[x + 2] = red | (red >> 5);
michael@0:                         dest[x + 3] = alpha;
michael@0:                     }
michael@0: 
michael@0:                     source += sourceLock.Pitch;
michael@0:                     dest += destLock.Pitch;
michael@0:                 }
michael@0:                 break;
michael@0:               case D3DFMT_L8:
michael@0:                 for(int y = 0; y < height; y++)
michael@0:                 {
michael@0:                     for(int x = 0; x < width; x++)
michael@0:                     {
michael@0:                         unsigned char red = source[x * 2 + 1] & 0x7C;
michael@0:                         dest[x] = (red << 1) | (red >> 4);
michael@0:                     }
michael@0: 
michael@0:                     source += sourceLock.Pitch;
michael@0:                     dest += destLock.Pitch;
michael@0:                 }
michael@0:                 break;
michael@0:               case D3DFMT_A8L8:
michael@0:                 for(int y = 0; y < height; y++)
michael@0:                 {
michael@0:                     for(int x = 0; x < width; x++)
michael@0:                     {
michael@0:                         unsigned char red = source[x * 2 + 1] & 0x7C;
michael@0:                         dest[x * 2 + 0] = (red << 1) | (red >> 4);
michael@0:                         dest[x * 2 + 1] = (signed char)source[x * 2 + 1] >> 7;
michael@0:                     }
michael@0: 
michael@0:                     source += sourceLock.Pitch;
michael@0:                     dest += destLock.Pitch;
michael@0:                 }
michael@0:                 break;
michael@0:               default:
michael@0:                 UNREACHABLE();
michael@0:             }
michael@0:             break;
michael@0:           default:
michael@0:             UNREACHABLE();
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     unlock();
michael@0:     renderTargetData->UnlockRect();
michael@0: 
michael@0:     renderTargetData->Release();
michael@0:     surface->Release();
michael@0: 
michael@0:     mDirty = true;
michael@0: }
michael@0: 
michael@0: }