Mercurial > sdl-ios-xcode
diff src/video/win32/SDL_d3drender.c @ 3549:686f0e69cd37
Finished implementing RenderReadPixels()
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sat, 12 Dec 2009 04:01:40 +0000 |
parents | 0267b8b1595c |
children | 4a39f28cd935 |
line wrap: on
line diff
--- a/src/video/win32/SDL_d3drender.c Sat Dec 12 01:04:57 2009 +0000 +++ b/src/video/win32/SDL_d3drender.c Sat Dec 12 04:01:40 2009 +0000 @@ -1206,44 +1206,67 @@ D3D_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect, Uint32 format, void * pixels, int pitch) { - BYTE * pBytes; - D3DLOCKED_RECT lockedRect; - BYTE b, g, r, a; - unsigned long index; - int cur_mouse; - int x, y; - + D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; + SDL_Window *window = SDL_GetWindowFromID(renderer->window); + SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window); + D3DSURFACE_DESC desc; LPDIRECT3DSURFACE9 backBuffer; - LPDIRECT3DSURFACE9 pickOffscreenSurface; - D3DSURFACE_DESC desc; + LPDIRECT3DSURFACE9 surface; + RECT d3drect; + D3DLOCKED_RECT locked; + HRESULT result; + + result = IDirect3DDevice9_GetBackBuffer(data->device, 0, 0, D3DBACKBUFFER_TYPE_MONO, &backBuffer); + if (FAILED(result)) { + D3D_SetError("GetBackBuffer()", result); + return -1; + } - D3D_RenderData * data = (D3D_RenderData *) renderer->driverdata; - - IDirect3DDevice9_GetBackBuffer(data->device, 0, 0, D3DBACKBUFFER_TYPE_MONO, &backBuffer); - - - IDirect3DSurface9_GetDesc(backBuffer, &desc); + result = IDirect3DSurface9_GetDesc(backBuffer, &desc); + if (FAILED(result)) { + D3D_SetError("GetDesc()", result); + IDirect3DSurface9_Release(backBuffer); + return -1; + } + + result = IDirect3DDevice9_CreateOffscreenPlainSurface(data->device, desc.Width, desc.Height, desc.Format, D3DPOOL_SYSTEMMEM, &surface, NULL); + if (FAILED(result)) { + D3D_SetError("CreateOffscreenPlainSurface()", result); + IDirect3DSurface9_Release(backBuffer); + return -1; + } - IDirect3DDevice9_CreateOffscreenPlainSurface(data->device, desc.Width, desc.Height, desc.Format, D3DPOOL_SYSTEMMEM, &pickOffscreenSurface, NULL); - - IDirect3DDevice9_GetRenderTargetData(data->device, backBuffer, pickOffscreenSurface); + result = IDirect3DDevice9_GetRenderTargetData(data->device, backBuffer, surface); + if (FAILED(result)) { + D3D_SetError("GetRenderTargetData()", result); + IDirect3DSurface9_Release(surface); + IDirect3DSurface9_Release(backBuffer); + return -1; + } - IDirect3DSurface9_LockRect(pickOffscreenSurface, &lockedRect, NULL, D3DLOCK_READONLY); - pBytes = (BYTE*)lockedRect.pBits; - IDirect3DSurface9_UnlockRect(pickOffscreenSurface); + d3drect.left = rect->x; + d3drect.right = rect->x + rect->w; + d3drect.top = rect->y; + d3drect.bottom = rect->y + rect->h; - // just to debug --> - cur_mouse = SDL_SelectMouse(-1); - SDL_GetMouseState(cur_mouse, &x, &y); - index = (x * 4 + (y * lockedRect.Pitch)); + result = IDirect3DSurface9_LockRect(surface, &locked, &d3drect, D3DLOCK_READONLY); + if (FAILED(result)) { + D3D_SetError("LockRect()", result); + IDirect3DSurface9_Release(surface); + IDirect3DSurface9_Release(backBuffer); + return -1; + } - b = pBytes[index]; - g = pBytes[index+1]; - r = pBytes[index+2]; - a = pBytes[index+3]; - // <-- - - return -1; + SDL_ConvertPixels(rect->w, rect->h, + display->current_mode.format, locked.pBits, locked.Pitch, + format, pixels, pitch); + + IDirect3DSurface9_UnlockRect(surface); + + IDirect3DSurface9_Release(surface); + IDirect3DSurface9_Release(backBuffer); + + return 0; } static int