1 /**************************************************************************
3 * Copyright 2011 Jose Fonseca
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 **************************************************************************/
30 #include "d3d9imports.hpp"
37 getRenderTargetImage(IDirect3DDevice9 *pDevice) {
38 image::Image *image = NULL;
39 IDirect3DSurface9 *pRenderTarget = NULL;
41 IDirect3DSurface9 *pStagingSurface = NULL;
42 D3DLOCKED_RECT LockedRect;
43 const unsigned char *src;
47 hr = pDevice->GetRenderTarget(0, &pRenderTarget);
51 assert(pRenderTarget);
53 hr = pRenderTarget->GetDesc(&Desc);
54 assert(SUCCEEDED(hr));
55 assert(Desc.Format == D3DFMT_X8R8G8B8 || Desc.Format == D3DFMT_A8R8G8B8);
57 hr = pDevice->CreateOffscreenPlainSurface(Desc.Width, Desc.Height, Desc.Format, D3DPOOL_SYSTEMMEM, &pStagingSurface, NULL);
62 hr = pDevice->GetRenderTargetData(pRenderTarget, pStagingSurface);
64 goto no_rendertargetdata;
67 hr = pStagingSurface->LockRect(&LockedRect, NULL, D3DLOCK_READONLY);
69 goto no_rendertargetdata;
72 image = new image::Image(Desc.Width, Desc.Height, 3, true);
78 src = (const unsigned char *)LockedRect.pBits;
79 for (unsigned y = 0; y < Desc.Height; ++y) {
80 for (unsigned x = 0; x < Desc.Width; ++x) {
81 dst[3*x + 0] = src[4*x + 2];
82 dst[3*x + 1] = src[4*x + 1];
83 dst[3*x + 2] = src[4*x + 0];
85 src += LockedRect.Pitch;
86 dst += image->stride();
90 pStagingSurface->UnlockRect();
92 pStagingSurface->Release();
94 pRenderTarget->Release();
100 } /* namespace d3dstate */