| /* | 
 |   Simple DirectMedia Layer | 
 |   Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org> | 
 |  | 
 |   This software is provided 'as-is', without any express or implied | 
 |   warranty.  In no event will the authors be held liable for any damages | 
 |   arising from the use of this software. | 
 |  | 
 |   Permission is granted to anyone to use this software for any purpose, | 
 |   including commercial applications, and to alter it and redistribute it | 
 |   freely, subject to the following restrictions: | 
 |  | 
 |   1. The origin of this software must not be misrepresented; you must not | 
 |      claim that you wrote the original software. If you use this software | 
 |      in a product, an acknowledgment in the product documentation would be | 
 |      appreciated but is not required. | 
 |   2. Altered source versions must be plainly marked as such, and must not be | 
 |      misrepresented as being the original software. | 
 |   3. This notice may not be removed or altered from any source distribution. | 
 | */ | 
 | #include "../../SDL_internal.h" | 
 |  | 
 | #include "SDL_render.h" | 
 | #include "SDL_system.h" | 
 |  | 
 | #if SDL_VIDEO_RENDER_D3D && !SDL_RENDER_DISABLED | 
 |  | 
 | #include "../../core/windows/SDL_windows.h" | 
 |  | 
 | #include "SDL_hints.h" | 
 | #include "SDL_loadso.h" | 
 | #include "SDL_syswm.h" | 
 | #include "../SDL_sysrender.h" | 
 | #include "../SDL_d3dmath.h" | 
 | #include "../../video/windows/SDL_windowsvideo.h" | 
 |  | 
 | #if SDL_VIDEO_RENDER_D3D | 
 | #define D3D_DEBUG_INFO | 
 | #include <d3d9.h> | 
 | #endif | 
 |  | 
 |  | 
 | #ifdef ASSEMBLE_SHADER | 
 | #pragma comment(lib, "d3dx9.lib") | 
 |  | 
 | /************************************************************************** | 
 |  * ID3DXBuffer: | 
 |  * ------------ | 
 |  * The buffer object is used by D3DX to return arbitrary size data. | 
 |  * | 
 |  * GetBufferPointer - | 
 |  *    Returns a pointer to the beginning of the buffer. | 
 |  * | 
 |  * GetBufferSize - | 
 |  *    Returns the size of the buffer, in bytes. | 
 |  **************************************************************************/ | 
 |  | 
 | typedef interface ID3DXBuffer ID3DXBuffer; | 
 | typedef interface ID3DXBuffer *LPD3DXBUFFER; | 
 |  | 
 | /* {8BA5FB08-5195-40e2-AC58-0D989C3A0102} */ | 
 | DEFINE_GUID(IID_ID3DXBuffer, | 
 | 0x8ba5fb08, 0x5195, 0x40e2, 0xac, 0x58, 0xd, 0x98, 0x9c, 0x3a, 0x1, 0x2); | 
 |  | 
 | #undef INTERFACE | 
 | #define INTERFACE ID3DXBuffer | 
 |  | 
 | typedef interface ID3DXBuffer { | 
 |     const struct ID3DXBufferVtbl FAR* lpVtbl; | 
 | } ID3DXBuffer; | 
 | typedef const struct ID3DXBufferVtbl ID3DXBufferVtbl; | 
 | const struct ID3DXBufferVtbl | 
 | { | 
 |     /* IUnknown */ | 
 |     STDMETHOD(QueryInterface)(THIS_ REFIID iid, LPVOID *ppv) PURE; | 
 |     STDMETHOD_(ULONG, AddRef)(THIS) PURE; | 
 |     STDMETHOD_(ULONG, Release)(THIS) PURE; | 
 |  | 
 |     /* ID3DXBuffer */ | 
 |     STDMETHOD_(LPVOID, GetBufferPointer)(THIS) PURE; | 
 |     STDMETHOD_(DWORD, GetBufferSize)(THIS) PURE; | 
 | }; | 
 |  | 
 | HRESULT WINAPI | 
 |     D3DXAssembleShader( | 
 |         LPCSTR                          pSrcData, | 
 |         UINT                            SrcDataLen, | 
 |         CONST LPVOID*                   pDefines, | 
 |         LPVOID                          pInclude, | 
 |         DWORD                           Flags, | 
 |         LPD3DXBUFFER*                   ppShader, | 
 |         LPD3DXBUFFER*                   ppErrorMsgs); | 
 |  | 
 | static void PrintShaderData(LPDWORD shader_data, DWORD shader_size) | 
 | { | 
 |     OutputDebugStringA("const DWORD shader_data[] = {\n\t"); | 
 |     { | 
 |         SDL_bool newline = SDL_FALSE; | 
 |         unsigned i; | 
 |         for (i = 0; i < shader_size / sizeof(DWORD); ++i) { | 
 |             char dword[11]; | 
 |             if (i > 0) { | 
 |                 if ((i%6) == 0) { | 
 |                     newline = SDL_TRUE; | 
 |                 } | 
 |                 if (newline) { | 
 |                     OutputDebugStringA(",\n    "); | 
 |                     newline = SDL_FALSE; | 
 |                 } else { | 
 |                     OutputDebugStringA(", "); | 
 |                 } | 
 |             } | 
 |             SDL_snprintf(dword, sizeof(dword), "0x%8.8x", shader_data[i]); | 
 |             OutputDebugStringA(dword); | 
 |         } | 
 |         OutputDebugStringA("\n};\n"); | 
 |     } | 
 | } | 
 |  | 
 | #endif /* ASSEMBLE_SHADER */ | 
 |  | 
 |  | 
 | /* Direct3D renderer implementation */ | 
 |  | 
 | static SDL_Renderer *D3D_CreateRenderer(SDL_Window * window, Uint32 flags); | 
 | static void D3D_WindowEvent(SDL_Renderer * renderer, | 
 |                             const SDL_WindowEvent *event); | 
 | static int D3D_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture); | 
 | static int D3D_RecreateTexture(SDL_Renderer * renderer, SDL_Texture * texture); | 
 | static int D3D_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture, | 
 |                              const SDL_Rect * rect, const void *pixels, | 
 |                              int pitch); | 
 | static int D3D_UpdateTextureYUV(SDL_Renderer * renderer, SDL_Texture * texture, | 
 |                                 const SDL_Rect * rect, | 
 |                                 const Uint8 *Yplane, int Ypitch, | 
 |                                 const Uint8 *Uplane, int Upitch, | 
 |                                 const Uint8 *Vplane, int Vpitch); | 
 | static int D3D_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture, | 
 |                            const SDL_Rect * rect, void **pixels, int *pitch); | 
 | static void D3D_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture); | 
 | static int D3D_SetRenderTargetInternal(SDL_Renderer * renderer, SDL_Texture * texture); | 
 | static int D3D_SetRenderTarget(SDL_Renderer * renderer, SDL_Texture * texture); | 
 | static int D3D_UpdateViewport(SDL_Renderer * renderer); | 
 | static int D3D_UpdateClipRect(SDL_Renderer * renderer); | 
 | static int D3D_RenderClear(SDL_Renderer * renderer); | 
 | static int D3D_RenderDrawPoints(SDL_Renderer * renderer, | 
 |                                 const SDL_FPoint * points, int count); | 
 | static int D3D_RenderDrawLines(SDL_Renderer * renderer, | 
 |                                const SDL_FPoint * points, int count); | 
 | static int D3D_RenderFillRects(SDL_Renderer * renderer, | 
 |                                const SDL_FRect * rects, int count); | 
 | static int D3D_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture, | 
 |                           const SDL_Rect * srcrect, const SDL_FRect * dstrect); | 
 | static int D3D_RenderCopyEx(SDL_Renderer * renderer, SDL_Texture * texture, | 
 |                           const SDL_Rect * srcrect, const SDL_FRect * dstrect, | 
 |                           const double angle, const SDL_FPoint * center, const SDL_RendererFlip flip); | 
 | static int D3D_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect, | 
 |                                 Uint32 format, void * pixels, int pitch); | 
 | static void D3D_RenderPresent(SDL_Renderer * renderer); | 
 | static void D3D_DestroyTexture(SDL_Renderer * renderer, | 
 |                                SDL_Texture * texture); | 
 | static void D3D_DestroyRenderer(SDL_Renderer * renderer); | 
 |  | 
 |  | 
 | SDL_RenderDriver D3D_RenderDriver = { | 
 |     D3D_CreateRenderer, | 
 |     { | 
 |      "direct3d", | 
 |      (SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_TARGETTEXTURE), | 
 |      1, | 
 |      {SDL_PIXELFORMAT_ARGB8888}, | 
 |      0, | 
 |      0} | 
 | }; | 
 |  | 
 | typedef struct | 
 | { | 
 |     void* d3dDLL; | 
 |     IDirect3D9 *d3d; | 
 |     IDirect3DDevice9 *device; | 
 |     UINT adapter; | 
 |     D3DPRESENT_PARAMETERS pparams; | 
 |     SDL_bool updateSize; | 
 |     SDL_bool beginScene; | 
 |     SDL_bool enableSeparateAlphaBlend; | 
 |     D3DTEXTUREFILTERTYPE scaleMode[8]; | 
 |     IDirect3DSurface9 *defaultRenderTarget; | 
 |     IDirect3DSurface9 *currentRenderTarget; | 
 |     void* d3dxDLL; | 
 |     LPDIRECT3DPIXELSHADER9 ps_yuv; | 
 | } D3D_RenderData; | 
 |  | 
 | typedef struct | 
 | { | 
 |     SDL_bool dirty; | 
 |     int w, h; | 
 |     DWORD usage; | 
 |     Uint32 format; | 
 |     IDirect3DTexture9 *texture; | 
 |     IDirect3DTexture9 *staging; | 
 | } D3D_TextureRep; | 
 |  | 
 | typedef struct | 
 | { | 
 |     D3D_TextureRep texture; | 
 |     D3DTEXTUREFILTERTYPE scaleMode; | 
 |  | 
 |     /* YV12 texture support */ | 
 |     SDL_bool yuv; | 
 |     D3D_TextureRep utexture; | 
 |     D3D_TextureRep vtexture; | 
 |     Uint8 *pixels; | 
 |     int pitch; | 
 |     SDL_Rect locked_rect; | 
 | } D3D_TextureData; | 
 |  | 
 | typedef struct | 
 | { | 
 |     float x, y, z; | 
 |     DWORD color; | 
 |     float u, v; | 
 | } Vertex; | 
 |  | 
 | static int | 
 | D3D_SetError(const char *prefix, HRESULT result) | 
 | { | 
 |     const char *error; | 
 |  | 
 |     switch (result) { | 
 |     case D3DERR_WRONGTEXTUREFORMAT: | 
 |         error = "WRONGTEXTUREFORMAT"; | 
 |         break; | 
 |     case D3DERR_UNSUPPORTEDCOLOROPERATION: | 
 |         error = "UNSUPPORTEDCOLOROPERATION"; | 
 |         break; | 
 |     case D3DERR_UNSUPPORTEDCOLORARG: | 
 |         error = "UNSUPPORTEDCOLORARG"; | 
 |         break; | 
 |     case D3DERR_UNSUPPORTEDALPHAOPERATION: | 
 |         error = "UNSUPPORTEDALPHAOPERATION"; | 
 |         break; | 
 |     case D3DERR_UNSUPPORTEDALPHAARG: | 
 |         error = "UNSUPPORTEDALPHAARG"; | 
 |         break; | 
 |     case D3DERR_TOOMANYOPERATIONS: | 
 |         error = "TOOMANYOPERATIONS"; | 
 |         break; | 
 |     case D3DERR_CONFLICTINGTEXTUREFILTER: | 
 |         error = "CONFLICTINGTEXTUREFILTER"; | 
 |         break; | 
 |     case D3DERR_UNSUPPORTEDFACTORVALUE: | 
 |         error = "UNSUPPORTEDFACTORVALUE"; | 
 |         break; | 
 |     case D3DERR_CONFLICTINGRENDERSTATE: | 
 |         error = "CONFLICTINGRENDERSTATE"; | 
 |         break; | 
 |     case D3DERR_UNSUPPORTEDTEXTUREFILTER: | 
 |         error = "UNSUPPORTEDTEXTUREFILTER"; | 
 |         break; | 
 |     case D3DERR_CONFLICTINGTEXTUREPALETTE: | 
 |         error = "CONFLICTINGTEXTUREPALETTE"; | 
 |         break; | 
 |     case D3DERR_DRIVERINTERNALERROR: | 
 |         error = "DRIVERINTERNALERROR"; | 
 |         break; | 
 |     case D3DERR_NOTFOUND: | 
 |         error = "NOTFOUND"; | 
 |         break; | 
 |     case D3DERR_MOREDATA: | 
 |         error = "MOREDATA"; | 
 |         break; | 
 |     case D3DERR_DEVICELOST: | 
 |         error = "DEVICELOST"; | 
 |         break; | 
 |     case D3DERR_DEVICENOTRESET: | 
 |         error = "DEVICENOTRESET"; | 
 |         break; | 
 |     case D3DERR_NOTAVAILABLE: | 
 |         error = "NOTAVAILABLE"; | 
 |         break; | 
 |     case D3DERR_OUTOFVIDEOMEMORY: | 
 |         error = "OUTOFVIDEOMEMORY"; | 
 |         break; | 
 |     case D3DERR_INVALIDDEVICE: | 
 |         error = "INVALIDDEVICE"; | 
 |         break; | 
 |     case D3DERR_INVALIDCALL: | 
 |         error = "INVALIDCALL"; | 
 |         break; | 
 |     case D3DERR_DRIVERINVALIDCALL: | 
 |         error = "DRIVERINVALIDCALL"; | 
 |         break; | 
 |     case D3DERR_WASSTILLDRAWING: | 
 |         error = "WASSTILLDRAWING"; | 
 |         break; | 
 |     default: | 
 |         error = "UNKNOWN"; | 
 |         break; | 
 |     } | 
 |     return SDL_SetError("%s: %s", prefix, error); | 
 | } | 
 |  | 
 | static D3DFORMAT | 
 | PixelFormatToD3DFMT(Uint32 format) | 
 | { | 
 |     switch (format) { | 
 |     case SDL_PIXELFORMAT_RGB565: | 
 |         return D3DFMT_R5G6B5; | 
 |     case SDL_PIXELFORMAT_RGB888: | 
 |         return D3DFMT_X8R8G8B8; | 
 |     case SDL_PIXELFORMAT_ARGB8888: | 
 |         return D3DFMT_A8R8G8B8; | 
 |     case SDL_PIXELFORMAT_YV12: | 
 |     case SDL_PIXELFORMAT_IYUV: | 
 |         return D3DFMT_L8; | 
 |     default: | 
 |         return D3DFMT_UNKNOWN; | 
 |     } | 
 | } | 
 |  | 
 | static Uint32 | 
 | D3DFMTToPixelFormat(D3DFORMAT format) | 
 | { | 
 |     switch (format) { | 
 |     case D3DFMT_R5G6B5: | 
 |         return SDL_PIXELFORMAT_RGB565; | 
 |     case D3DFMT_X8R8G8B8: | 
 |         return SDL_PIXELFORMAT_RGB888; | 
 |     case D3DFMT_A8R8G8B8: | 
 |         return SDL_PIXELFORMAT_ARGB8888; | 
 |     default: | 
 |         return SDL_PIXELFORMAT_UNKNOWN; | 
 |     } | 
 | } | 
 |  | 
 | static void | 
 | D3D_InitRenderState(D3D_RenderData *data) | 
 | { | 
 |     D3DMATRIX matrix; | 
 |  | 
 |     IDirect3DDevice9 *device = data->device; | 
 |  | 
 |     IDirect3DDevice9_SetVertexShader(device, NULL); | 
 |     IDirect3DDevice9_SetFVF(device, D3DFVF_XYZ | D3DFVF_DIFFUSE | D3DFVF_TEX1); | 
 |     IDirect3DDevice9_SetRenderState(device, D3DRS_ZENABLE, D3DZB_FALSE); | 
 |     IDirect3DDevice9_SetRenderState(device, D3DRS_CULLMODE, D3DCULL_NONE); | 
 |     IDirect3DDevice9_SetRenderState(device, D3DRS_LIGHTING, FALSE); | 
 |  | 
 |     /* Enable color modulation by diffuse color */ | 
 |     IDirect3DDevice9_SetTextureStageState(device, 0, D3DTSS_COLOROP, | 
 |                                           D3DTOP_MODULATE); | 
 |     IDirect3DDevice9_SetTextureStageState(device, 0, D3DTSS_COLORARG1, | 
 |                                           D3DTA_TEXTURE); | 
 |     IDirect3DDevice9_SetTextureStageState(device, 0, D3DTSS_COLORARG2, | 
 |                                           D3DTA_DIFFUSE); | 
 |  | 
 |     /* Enable alpha modulation by diffuse alpha */ | 
 |     IDirect3DDevice9_SetTextureStageState(device, 0, D3DTSS_ALPHAOP, | 
 |                                           D3DTOP_MODULATE); | 
 |     IDirect3DDevice9_SetTextureStageState(device, 0, D3DTSS_ALPHAARG1, | 
 |                                           D3DTA_TEXTURE); | 
 |     IDirect3DDevice9_SetTextureStageState(device, 0, D3DTSS_ALPHAARG2, | 
 |                                           D3DTA_DIFFUSE); | 
 |  | 
 |     /* Enable separate alpha blend function, if possible */ | 
 |     if (data->enableSeparateAlphaBlend) { | 
 |         IDirect3DDevice9_SetRenderState(device, D3DRS_SEPARATEALPHABLENDENABLE, TRUE); | 
 |     } | 
 |  | 
 |     /* Disable second texture stage, since we're done */ | 
 |     IDirect3DDevice9_SetTextureStageState(device, 1, D3DTSS_COLOROP, | 
 |                                           D3DTOP_DISABLE); | 
 |     IDirect3DDevice9_SetTextureStageState(device, 1, D3DTSS_ALPHAOP, | 
 |                                           D3DTOP_DISABLE); | 
 |  | 
 |     /* Set an identity world and view matrix */ | 
 |     matrix.m[0][0] = 1.0f; | 
 |     matrix.m[0][1] = 0.0f; | 
 |     matrix.m[0][2] = 0.0f; | 
 |     matrix.m[0][3] = 0.0f; | 
 |     matrix.m[1][0] = 0.0f; | 
 |     matrix.m[1][1] = 1.0f; | 
 |     matrix.m[1][2] = 0.0f; | 
 |     matrix.m[1][3] = 0.0f; | 
 |     matrix.m[2][0] = 0.0f; | 
 |     matrix.m[2][1] = 0.0f; | 
 |     matrix.m[2][2] = 1.0f; | 
 |     matrix.m[2][3] = 0.0f; | 
 |     matrix.m[3][0] = 0.0f; | 
 |     matrix.m[3][1] = 0.0f; | 
 |     matrix.m[3][2] = 0.0f; | 
 |     matrix.m[3][3] = 1.0f; | 
 |     IDirect3DDevice9_SetTransform(device, D3DTS_WORLD, &matrix); | 
 |     IDirect3DDevice9_SetTransform(device, D3DTS_VIEW, &matrix); | 
 |  | 
 |     /* Reset our current scale mode */ | 
 |     SDL_memset(data->scaleMode, 0xFF, sizeof(data->scaleMode)); | 
 |  | 
 |     /* Start the render with beginScene */ | 
 |     data->beginScene = SDL_TRUE; | 
 | } | 
 |  | 
 | static int | 
 | D3D_Reset(SDL_Renderer * renderer) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; | 
 |     HRESULT result; | 
 |     SDL_Texture *texture; | 
 |  | 
 |     /* Release the default render target before reset */ | 
 |     if (data->defaultRenderTarget) { | 
 |         IDirect3DSurface9_Release(data->defaultRenderTarget); | 
 |         data->defaultRenderTarget = NULL; | 
 |     } | 
 |     if (data->currentRenderTarget != NULL) { | 
 |         IDirect3DSurface9_Release(data->currentRenderTarget); | 
 |         data->currentRenderTarget = NULL; | 
 |     } | 
 |  | 
 |     /* Release application render targets */ | 
 |     for (texture = renderer->textures; texture; texture = texture->next) { | 
 |         if (texture->access == SDL_TEXTUREACCESS_TARGET) { | 
 |             D3D_DestroyTexture(renderer, texture); | 
 |         } else { | 
 |             D3D_RecreateTexture(renderer, texture); | 
 |         } | 
 |     } | 
 |  | 
 |     result = IDirect3DDevice9_Reset(data->device, &data->pparams); | 
 |     if (FAILED(result)) { | 
 |         if (result == D3DERR_DEVICELOST) { | 
 |             /* Don't worry about it, we'll reset later... */ | 
 |             return 0; | 
 |         } else { | 
 |             return D3D_SetError("Reset()", result); | 
 |         } | 
 |     } | 
 |  | 
 |     /* Allocate application render targets */ | 
 |     for (texture = renderer->textures; texture; texture = texture->next) { | 
 |         if (texture->access == SDL_TEXTUREACCESS_TARGET) { | 
 |             D3D_CreateTexture(renderer, texture); | 
 |         } | 
 |     } | 
 |  | 
 |     IDirect3DDevice9_GetRenderTarget(data->device, 0, &data->defaultRenderTarget); | 
 |     D3D_InitRenderState(data); | 
 |     D3D_SetRenderTargetInternal(renderer, renderer->target); | 
 |     D3D_UpdateViewport(renderer); | 
 |  | 
 |     /* Let the application know that render targets were reset */ | 
 |     { | 
 |         SDL_Event event; | 
 |         event.type = SDL_RENDER_TARGETS_RESET; | 
 |         SDL_PushEvent(&event); | 
 |     } | 
 |  | 
 |     return 0; | 
 | } | 
 |  | 
 | static int | 
 | D3D_ActivateRenderer(SDL_Renderer * renderer) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; | 
 |     HRESULT result; | 
 |  | 
 |     if (data->updateSize) { | 
 |         SDL_Window *window = renderer->window; | 
 |         int w, h; | 
 |         Uint32 window_flags = SDL_GetWindowFlags(window); | 
 |  | 
 |         SDL_GetWindowSize(window, &w, &h); | 
 |         data->pparams.BackBufferWidth = w; | 
 |         data->pparams.BackBufferHeight = h; | 
 |         if (window_flags & SDL_WINDOW_FULLSCREEN && (window_flags & SDL_WINDOW_FULLSCREEN_DESKTOP) != SDL_WINDOW_FULLSCREEN_DESKTOP) { | 
 |             SDL_DisplayMode fullscreen_mode; | 
 |             SDL_GetWindowDisplayMode(window, &fullscreen_mode); | 
 |             data->pparams.Windowed = FALSE; | 
 |             data->pparams.BackBufferFormat = PixelFormatToD3DFMT(fullscreen_mode.format); | 
 |             data->pparams.FullScreen_RefreshRateInHz = fullscreen_mode.refresh_rate; | 
 |         } else { | 
 |             data->pparams.Windowed = TRUE; | 
 |             data->pparams.BackBufferFormat = D3DFMT_UNKNOWN; | 
 |             data->pparams.FullScreen_RefreshRateInHz = 0; | 
 |         } | 
 |         if (D3D_Reset(renderer) < 0) { | 
 |             return -1; | 
 |         } | 
 |  | 
 |         data->updateSize = SDL_FALSE; | 
 |     } | 
 |     if (data->beginScene) { | 
 |         result = IDirect3DDevice9_BeginScene(data->device); | 
 |         if (result == D3DERR_DEVICELOST) { | 
 |             if (D3D_Reset(renderer) < 0) { | 
 |                 return -1; | 
 |             } | 
 |             result = IDirect3DDevice9_BeginScene(data->device); | 
 |         } | 
 |         if (FAILED(result)) { | 
 |             return D3D_SetError("BeginScene()", result); | 
 |         } | 
 |         data->beginScene = SDL_FALSE; | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 | SDL_Renderer * | 
 | D3D_CreateRenderer(SDL_Window * window, Uint32 flags) | 
 | { | 
 |     SDL_Renderer *renderer; | 
 |     D3D_RenderData *data; | 
 |     SDL_SysWMinfo windowinfo; | 
 |     HRESULT result; | 
 |     D3DPRESENT_PARAMETERS pparams; | 
 |     IDirect3DSwapChain9 *chain; | 
 |     D3DCAPS9 caps; | 
 |     DWORD device_flags; | 
 |     Uint32 window_flags; | 
 |     int w, h; | 
 |     SDL_DisplayMode fullscreen_mode; | 
 |     int displayIndex; | 
 |  | 
 |     renderer = (SDL_Renderer *) SDL_calloc(1, sizeof(*renderer)); | 
 |     if (!renderer) { | 
 |         SDL_OutOfMemory(); | 
 |         return NULL; | 
 |     } | 
 |  | 
 |     data = (D3D_RenderData *) SDL_calloc(1, sizeof(*data)); | 
 |     if (!data) { | 
 |         SDL_free(renderer); | 
 |         SDL_OutOfMemory(); | 
 |         return NULL; | 
 |     } | 
 |  | 
 |     if (!D3D_LoadDLL(&data->d3dDLL, &data->d3d)) { | 
 |         SDL_free(renderer); | 
 |         SDL_free(data); | 
 |         SDL_SetError("Unable to create Direct3D interface"); | 
 |         return NULL; | 
 |     } | 
 |  | 
 |     renderer->WindowEvent = D3D_WindowEvent; | 
 |     renderer->CreateTexture = D3D_CreateTexture; | 
 |     renderer->UpdateTexture = D3D_UpdateTexture; | 
 |     renderer->UpdateTextureYUV = D3D_UpdateTextureYUV; | 
 |     renderer->LockTexture = D3D_LockTexture; | 
 |     renderer->UnlockTexture = D3D_UnlockTexture; | 
 |     renderer->SetRenderTarget = D3D_SetRenderTarget; | 
 |     renderer->UpdateViewport = D3D_UpdateViewport; | 
 |     renderer->UpdateClipRect = D3D_UpdateClipRect; | 
 |     renderer->RenderClear = D3D_RenderClear; | 
 |     renderer->RenderDrawPoints = D3D_RenderDrawPoints; | 
 |     renderer->RenderDrawLines = D3D_RenderDrawLines; | 
 |     renderer->RenderFillRects = D3D_RenderFillRects; | 
 |     renderer->RenderCopy = D3D_RenderCopy; | 
 |     renderer->RenderCopyEx = D3D_RenderCopyEx; | 
 |     renderer->RenderReadPixels = D3D_RenderReadPixels; | 
 |     renderer->RenderPresent = D3D_RenderPresent; | 
 |     renderer->DestroyTexture = D3D_DestroyTexture; | 
 |     renderer->DestroyRenderer = D3D_DestroyRenderer; | 
 |     renderer->info = D3D_RenderDriver.info; | 
 |     renderer->info.flags = (SDL_RENDERER_ACCELERATED | SDL_RENDERER_TARGETTEXTURE); | 
 |     renderer->driverdata = data; | 
 |  | 
 |     SDL_VERSION(&windowinfo.version); | 
 |     SDL_GetWindowWMInfo(window, &windowinfo); | 
 |  | 
 |     window_flags = SDL_GetWindowFlags(window); | 
 |     SDL_GetWindowSize(window, &w, &h); | 
 |     SDL_GetWindowDisplayMode(window, &fullscreen_mode); | 
 |  | 
 |     SDL_zero(pparams); | 
 |     pparams.hDeviceWindow = windowinfo.info.win.window; | 
 |     pparams.BackBufferWidth = w; | 
 |     pparams.BackBufferHeight = h; | 
 |     pparams.BackBufferCount = 1; | 
 |     pparams.SwapEffect = D3DSWAPEFFECT_DISCARD; | 
 |  | 
 |     if (window_flags & SDL_WINDOW_FULLSCREEN && (window_flags & SDL_WINDOW_FULLSCREEN_DESKTOP) != SDL_WINDOW_FULLSCREEN_DESKTOP) { | 
 |         pparams.Windowed = FALSE; | 
 |         pparams.BackBufferFormat = PixelFormatToD3DFMT(fullscreen_mode.format); | 
 |         pparams.FullScreen_RefreshRateInHz = fullscreen_mode.refresh_rate; | 
 |     } else { | 
 |         pparams.Windowed = TRUE; | 
 |         pparams.BackBufferFormat = D3DFMT_UNKNOWN; | 
 |         pparams.FullScreen_RefreshRateInHz = 0; | 
 |     } | 
 |     if (flags & SDL_RENDERER_PRESENTVSYNC) { | 
 |         pparams.PresentationInterval = D3DPRESENT_INTERVAL_ONE; | 
 |     } else { | 
 |         pparams.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE; | 
 |     } | 
 |  | 
 |     /* Get the adapter for the display that the window is on */ | 
 |     displayIndex = SDL_GetWindowDisplayIndex(window); | 
 |     data->adapter = SDL_Direct3D9GetAdapterIndex(displayIndex); | 
 |  | 
 |     IDirect3D9_GetDeviceCaps(data->d3d, data->adapter, D3DDEVTYPE_HAL, &caps); | 
 |  | 
 |     device_flags = D3DCREATE_FPU_PRESERVE; | 
 |     if (caps.DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT) { | 
 |         device_flags |= D3DCREATE_HARDWARE_VERTEXPROCESSING; | 
 |     } else { | 
 |         device_flags |= D3DCREATE_SOFTWARE_VERTEXPROCESSING; | 
 |     } | 
 |  | 
 |     if (SDL_GetHintBoolean(SDL_HINT_RENDER_DIRECT3D_THREADSAFE, SDL_FALSE)) { | 
 |         device_flags |= D3DCREATE_MULTITHREADED; | 
 |     } | 
 |  | 
 |     result = IDirect3D9_CreateDevice(data->d3d, data->adapter, | 
 |                                      D3DDEVTYPE_HAL, | 
 |                                      pparams.hDeviceWindow, | 
 |                                      device_flags, | 
 |                                      &pparams, &data->device); | 
 |     if (FAILED(result)) { | 
 |         D3D_DestroyRenderer(renderer); | 
 |         D3D_SetError("CreateDevice()", result); | 
 |         return NULL; | 
 |     } | 
 |  | 
 |     /* Get presentation parameters to fill info */ | 
 |     result = IDirect3DDevice9_GetSwapChain(data->device, 0, &chain); | 
 |     if (FAILED(result)) { | 
 |         D3D_DestroyRenderer(renderer); | 
 |         D3D_SetError("GetSwapChain()", result); | 
 |         return NULL; | 
 |     } | 
 |     result = IDirect3DSwapChain9_GetPresentParameters(chain, &pparams); | 
 |     if (FAILED(result)) { | 
 |         IDirect3DSwapChain9_Release(chain); | 
 |         D3D_DestroyRenderer(renderer); | 
 |         D3D_SetError("GetPresentParameters()", result); | 
 |         return NULL; | 
 |     } | 
 |     IDirect3DSwapChain9_Release(chain); | 
 |     if (pparams.PresentationInterval == D3DPRESENT_INTERVAL_ONE) { | 
 |         renderer->info.flags |= SDL_RENDERER_PRESENTVSYNC; | 
 |     } | 
 |     data->pparams = pparams; | 
 |  | 
 |     IDirect3DDevice9_GetDeviceCaps(data->device, &caps); | 
 |     renderer->info.max_texture_width = caps.MaxTextureWidth; | 
 |     renderer->info.max_texture_height = caps.MaxTextureHeight; | 
 |     if (caps.NumSimultaneousRTs >= 2) { | 
 |         renderer->info.flags |= SDL_RENDERER_TARGETTEXTURE; | 
 |     } | 
 |  | 
 |     if (caps.PrimitiveMiscCaps & D3DPMISCCAPS_SEPARATEALPHABLEND) { | 
 |         data->enableSeparateAlphaBlend = SDL_TRUE; | 
 |     } | 
 |  | 
 |     /* Store the default render target */ | 
 |     IDirect3DDevice9_GetRenderTarget(data->device, 0, &data->defaultRenderTarget); | 
 |     data->currentRenderTarget = NULL; | 
 |  | 
 |     /* Set up parameters for rendering */ | 
 |     D3D_InitRenderState(data); | 
 |  | 
 |     if (caps.MaxSimultaneousTextures >= 3) | 
 |     { | 
 | #ifdef ASSEMBLE_SHADER | 
 |         /* This shader was created by running the following HLSL through the fxc compiler | 
 |            and then tuning the generated assembly. | 
 |  | 
 |            fxc /T fx_4_0 /O3 /Gfa /Fc yuv.fxc yuv.fx | 
 |  | 
 |            --- yuv.fx --- | 
 |            Texture2D g_txY; | 
 |            Texture2D g_txU; | 
 |            Texture2D g_txV; | 
 |  | 
 |            SamplerState samLinear | 
 |            { | 
 |                Filter = ANISOTROPIC; | 
 |                AddressU = Clamp; | 
 |                AddressV = Clamp; | 
 |                MaxAnisotropy = 1; | 
 |            }; | 
 |  | 
 |            struct VS_OUTPUT | 
 |            { | 
 |                 float2 TextureUV  : TEXCOORD0; | 
 |            }; | 
 |  | 
 |            struct PS_OUTPUT | 
 |            { | 
 |                 float4 RGBAColor : SV_Target; | 
 |            }; | 
 |  | 
 |            PS_OUTPUT YUV420( VS_OUTPUT In )  | 
 |            { | 
 |                const float3 offset = {-0.0627451017, -0.501960814, -0.501960814}; | 
 |                const float3 Rcoeff = {1.164,  0.000,  1.596}; | 
 |                const float3 Gcoeff = {1.164, -0.391, -0.813}; | 
 |                const float3 Bcoeff = {1.164,  2.018,  0.000}; | 
 |  | 
 |                PS_OUTPUT Output; | 
 |                float2 TextureUV = In.TextureUV; | 
 |  | 
 |                float3 yuv; | 
 |                yuv.x = g_txY.Sample( samLinear, TextureUV ).r; | 
 |                yuv.y = g_txU.Sample( samLinear, TextureUV ).r; | 
 |                yuv.z = g_txV.Sample( samLinear, TextureUV ).r; | 
 |  | 
 |                yuv += offset; | 
 |                Output.RGBAColor.r = dot(yuv, Rcoeff); | 
 |                Output.RGBAColor.g = dot(yuv, Gcoeff); | 
 |                Output.RGBAColor.b = dot(yuv, Bcoeff); | 
 |                Output.RGBAColor.a = 1.0f; | 
 |  | 
 |                return Output; | 
 |            } | 
 |  | 
 |            technique10 RenderYUV420 | 
 |            { | 
 |                pass P0 | 
 |                { | 
 |                     SetPixelShader( CompileShader( ps_4_0_level_9_0, YUV420() ) ); | 
 |                } | 
 |            } | 
 |         */ | 
 |         const char *shader_text = | 
 |             "ps_2_0\n" | 
 |             "def c0, -0.0627451017, -0.501960814, -0.501960814, 1\n" | 
 |             "def c1, 1.16400003, 0, 1.59599996, 0\n" | 
 |             "def c2, 1.16400003, -0.391000003, -0.813000023, 0\n" | 
 |             "def c3, 1.16400003, 2.01799989, 0, 0\n" | 
 |             "dcl t0.xy\n" | 
 |             "dcl v0.xyzw\n" | 
 |             "dcl_2d s0\n" | 
 |             "dcl_2d s1\n" | 
 |             "dcl_2d s2\n" | 
 |             "texld r0, t0, s0\n" | 
 |             "texld r1, t0, s1\n" | 
 |             "texld r2, t0, s2\n" | 
 |             "mov r0.y, r1.x\n" | 
 |             "mov r0.z, r2.x\n" | 
 |             "add r0.xyz, r0, c0\n" | 
 |             "dp3 r1.x, r0, c1\n" | 
 |             "dp3 r1.y, r0, c2\n" | 
 |             "dp2add r1.z, r0, c3, c3.z\n"   /* Logically this is "dp3 r1.z, r0, c3" but the optimizer did its magic */ | 
 |             "mov r1.w, c0.w\n" | 
 |             "mul r0, r1, v0\n"              /* Not in the HLSL, multiply by vertex color */ | 
 |             "mov oC0, r0\n" | 
 |         ; | 
 |         LPD3DXBUFFER pCode; | 
 |         LPD3DXBUFFER pErrorMsgs; | 
 |         LPDWORD shader_data = NULL; | 
 |         DWORD   shader_size = 0; | 
 |         result = D3DXAssembleShader(shader_text, SDL_strlen(shader_text), NULL, NULL, 0, &pCode, &pErrorMsgs); | 
 |         if (!FAILED(result)) { | 
 |             shader_data = (DWORD*)pCode->lpVtbl->GetBufferPointer(pCode); | 
 |             shader_size = pCode->lpVtbl->GetBufferSize(pCode); | 
 |             PrintShaderData(shader_data, shader_size); | 
 |         } else { | 
 |             const char *error = (const char *)pErrorMsgs->lpVtbl->GetBufferPointer(pErrorMsgs); | 
 |             SDL_SetError("Couldn't assemble shader: %s", error); | 
 |         } | 
 | #else | 
 |         const DWORD shader_data[] = { | 
 |             0xffff0200, 0x05000051, 0xa00f0000, 0xbd808081, 0xbf008081, 0xbf008081, | 
 |             0x3f800000, 0x05000051, 0xa00f0001, 0x3f94fdf4, 0x00000000, 0x3fcc49ba, | 
 |             0x00000000, 0x05000051, 0xa00f0002, 0x3f94fdf4, 0xbec83127, 0xbf5020c5, | 
 |             0x00000000, 0x05000051, 0xa00f0003, 0x3f94fdf4, 0x400126e9, 0x00000000, | 
 |             0x00000000, 0x0200001f, 0x80000000, 0xb0030000, 0x0200001f, 0x80000000, | 
 |             0x900f0000, 0x0200001f, 0x90000000, 0xa00f0800, 0x0200001f, 0x90000000, | 
 |             0xa00f0801, 0x0200001f, 0x90000000, 0xa00f0802, 0x03000042, 0x800f0000, | 
 |             0xb0e40000, 0xa0e40800, 0x03000042, 0x800f0001, 0xb0e40000, 0xa0e40801, | 
 |             0x03000042, 0x800f0002, 0xb0e40000, 0xa0e40802, 0x02000001, 0x80020000, | 
 |             0x80000001, 0x02000001, 0x80040000, 0x80000002, 0x03000002, 0x80070000, | 
 |             0x80e40000, 0xa0e40000, 0x03000008, 0x80010001, 0x80e40000, 0xa0e40001, | 
 |             0x03000008, 0x80020001, 0x80e40000, 0xa0e40002, 0x0400005a, 0x80040001, | 
 |             0x80e40000, 0xa0e40003, 0xa0aa0003, 0x02000001, 0x80080001, 0xa0ff0000, | 
 |             0x03000005, 0x800f0000, 0x80e40001, 0x90e40000, 0x02000001, 0x800f0800, | 
 |             0x80e40000, 0x0000ffff | 
 |         }; | 
 | #endif | 
 |         if (shader_data != NULL) { | 
 |             result = IDirect3DDevice9_CreatePixelShader(data->device, shader_data, &data->ps_yuv); | 
 |             if (!FAILED(result)) { | 
 |                 renderer->info.texture_formats[renderer->info.num_texture_formats++] = SDL_PIXELFORMAT_YV12; | 
 |                 renderer->info.texture_formats[renderer->info.num_texture_formats++] = SDL_PIXELFORMAT_IYUV; | 
 |             } else { | 
 |                 D3D_SetError("CreatePixelShader()", result); | 
 |             } | 
 |         } | 
 |     } | 
 |  | 
 |     return renderer; | 
 | } | 
 |  | 
 | static void | 
 | D3D_WindowEvent(SDL_Renderer * renderer, const SDL_WindowEvent *event) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; | 
 |  | 
 |     if (event->event == SDL_WINDOWEVENT_SIZE_CHANGED) { | 
 |         data->updateSize = SDL_TRUE; | 
 |     } | 
 | } | 
 |  | 
 | static D3DTEXTUREFILTERTYPE | 
 | GetScaleQuality(void) | 
 | { | 
 |     const char *hint = SDL_GetHint(SDL_HINT_RENDER_SCALE_QUALITY); | 
 |  | 
 |     if (!hint || *hint == '0' || SDL_strcasecmp(hint, "nearest") == 0) { | 
 |         return D3DTEXF_POINT; | 
 |     } else /* if (*hint == '1' || SDL_strcasecmp(hint, "linear") == 0) */ { | 
 |         return D3DTEXF_LINEAR; | 
 |     } | 
 | } | 
 |  | 
 | static int | 
 | D3D_CreateTextureRep(IDirect3DDevice9 *device, D3D_TextureRep *texture, DWORD usage, Uint32 format, int w, int h) | 
 | { | 
 |     HRESULT result; | 
 |  | 
 |     texture->dirty = SDL_FALSE; | 
 |     texture->w = w; | 
 |     texture->h = h; | 
 |     texture->usage = usage; | 
 |     texture->format = format; | 
 |  | 
 |     result = IDirect3DDevice9_CreateTexture(device, w, h, 1, usage, | 
 |         PixelFormatToD3DFMT(format), | 
 |         D3DPOOL_DEFAULT, &texture->texture, NULL); | 
 |     if (FAILED(result)) { | 
 |         return D3D_SetError("CreateTexture(D3DPOOL_DEFAULT)", result); | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 |  | 
 | static int | 
 | D3D_CreateStagingTexture(IDirect3DDevice9 *device, D3D_TextureRep *texture) | 
 | { | 
 |     HRESULT result; | 
 |  | 
 |     if (texture->staging == NULL) { | 
 |         result = IDirect3DDevice9_CreateTexture(device, texture->w, texture->h, 1, 0, | 
 |             PixelFormatToD3DFMT(texture->format), | 
 |             D3DPOOL_SYSTEMMEM, &texture->staging, NULL); | 
 |         if (FAILED(result)) { | 
 |             return D3D_SetError("CreateTexture(D3DPOOL_SYSTEMMEM)", result); | 
 |         } | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 | static int | 
 | D3D_BindTextureRep(IDirect3DDevice9 *device, D3D_TextureRep *texture, DWORD sampler) | 
 | { | 
 |     HRESULT result; | 
 |  | 
 |     if (texture->dirty && texture->staging) { | 
 |         if (!texture->texture) { | 
 |             result = IDirect3DDevice9_CreateTexture(device, texture->w, texture->h, 1, texture->usage, | 
 |                 PixelFormatToD3DFMT(texture->format), D3DPOOL_DEFAULT, &texture->texture, NULL); | 
 |             if (FAILED(result)) { | 
 |                 return D3D_SetError("CreateTexture(D3DPOOL_DEFAULT)", result); | 
 |             } | 
 |         } | 
 |  | 
 |         result = IDirect3DDevice9_UpdateTexture(device, (IDirect3DBaseTexture9 *)texture->staging, (IDirect3DBaseTexture9 *)texture->texture); | 
 |         if (FAILED(result)) { | 
 |             return D3D_SetError("UpdateTexture()", result); | 
 |         } | 
 |         texture->dirty = SDL_FALSE; | 
 |     } | 
 |     result = IDirect3DDevice9_SetTexture(device, sampler, (IDirect3DBaseTexture9 *)texture->texture); | 
 |     if (FAILED(result)) { | 
 |         return D3D_SetError("SetTexture()", result); | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 | static int | 
 | D3D_RecreateTextureRep(IDirect3DDevice9 *device, D3D_TextureRep *texture, Uint32 format, int w, int h) | 
 | { | 
 |     if (texture->texture) { | 
 |         IDirect3DTexture9_Release(texture->texture); | 
 |         texture->texture = NULL; | 
 |     } | 
 |     if (texture->staging) { | 
 |         IDirect3DTexture9_AddDirtyRect(texture->staging, NULL); | 
 |         texture->dirty = SDL_TRUE; | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 | static int | 
 | D3D_UpdateTextureRep(IDirect3DDevice9 *device, D3D_TextureRep *texture, Uint32 format, int x, int y, int w, int h, const void *pixels, int pitch) | 
 | { | 
 |     RECT d3drect; | 
 |     D3DLOCKED_RECT locked; | 
 |     const Uint8 *src; | 
 |     Uint8 *dst; | 
 |     int row, length; | 
 |     HRESULT result; | 
 |  | 
 |     if (D3D_CreateStagingTexture(device, texture) < 0) { | 
 |         return -1; | 
 |     } | 
 |  | 
 |     d3drect.left = x; | 
 |     d3drect.right = x + w; | 
 |     d3drect.top = y; | 
 |     d3drect.bottom = y + h; | 
 |      | 
 |     result = IDirect3DTexture9_LockRect(texture->staging, 0, &locked, &d3drect, 0); | 
 |     if (FAILED(result)) { | 
 |         return D3D_SetError("LockRect()", result); | 
 |     } | 
 |  | 
 |     src = (const Uint8 *)pixels; | 
 |     dst = locked.pBits; | 
 |     length = w * SDL_BYTESPERPIXEL(format); | 
 |     if (length == pitch && length == locked.Pitch) { | 
 |         SDL_memcpy(dst, src, length*h); | 
 |     } else { | 
 |         if (length > pitch) { | 
 |             length = pitch; | 
 |         } | 
 |         if (length > locked.Pitch) { | 
 |             length = locked.Pitch; | 
 |         } | 
 |         for (row = 0; row < h; ++row) { | 
 |             SDL_memcpy(dst, src, length); | 
 |             src += pitch; | 
 |             dst += locked.Pitch; | 
 |         } | 
 |     } | 
 |     result = IDirect3DTexture9_UnlockRect(texture->staging, 0); | 
 |     if (FAILED(result)) { | 
 |         return D3D_SetError("UnlockRect()", result); | 
 |     } | 
 |     texture->dirty = SDL_TRUE; | 
 |  | 
 |     return 0; | 
 | } | 
 |  | 
 | static void | 
 | D3D_DestroyTextureRep(D3D_TextureRep *texture) | 
 | { | 
 |     if (texture->texture) { | 
 |         IDirect3DTexture9_Release(texture->texture); | 
 |         texture->texture = NULL; | 
 |     } | 
 |     if (texture->staging) { | 
 |         IDirect3DTexture9_Release(texture->staging); | 
 |         texture->staging = NULL; | 
 |     } | 
 | } | 
 |  | 
 | static int | 
 | D3D_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; | 
 |     D3D_TextureData *texturedata; | 
 |     DWORD usage; | 
 |  | 
 |     texturedata = (D3D_TextureData *) SDL_calloc(1, sizeof(*texturedata)); | 
 |     if (!texturedata) { | 
 |         return SDL_OutOfMemory(); | 
 |     } | 
 |     texturedata->scaleMode = GetScaleQuality(); | 
 |  | 
 |     texture->driverdata = texturedata; | 
 |  | 
 |     if (texture->access == SDL_TEXTUREACCESS_TARGET) { | 
 |         usage = D3DUSAGE_RENDERTARGET; | 
 |     } else { | 
 |         usage = 0; | 
 |     } | 
 |  | 
 |     if (D3D_CreateTextureRep(data->device, &texturedata->texture, usage, texture->format, texture->w, texture->h) < 0) { | 
 |         return -1; | 
 |     } | 
 |  | 
 |     if (texture->format == SDL_PIXELFORMAT_YV12 || | 
 |         texture->format == SDL_PIXELFORMAT_IYUV) { | 
 |         texturedata->yuv = SDL_TRUE; | 
 |  | 
 |         if (D3D_CreateTextureRep(data->device, &texturedata->utexture, usage, texture->format, texture->w / 2, texture->h / 2) < 0) { | 
 |             return -1; | 
 |         } | 
 |  | 
 |         if (D3D_CreateTextureRep(data->device, &texturedata->vtexture, usage, texture->format, texture->w / 2, texture->h / 2) < 0) { | 
 |             return -1; | 
 |         } | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 | static int | 
 | D3D_RecreateTexture(SDL_Renderer * renderer, SDL_Texture * texture) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *)renderer->driverdata; | 
 |     D3D_TextureData *texturedata = (D3D_TextureData *)texture->driverdata; | 
 |  | 
 |     if (!texturedata) { | 
 |         return 0; | 
 |     } | 
 |  | 
 |     if (D3D_RecreateTextureRep(data->device, &texturedata->texture, texture->format, texture->w, texture->h) < 0) { | 
 |         return -1; | 
 |     } | 
 |  | 
 |     if (texturedata->yuv) { | 
 |         if (D3D_RecreateTextureRep(data->device, &texturedata->utexture, texture->format, texture->w / 2, texture->h / 2) < 0) { | 
 |             return -1; | 
 |         } | 
 |  | 
 |         if (D3D_RecreateTextureRep(data->device, &texturedata->vtexture, texture->format, texture->w / 2, texture->h / 2) < 0) { | 
 |             return -1; | 
 |         } | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 | static int | 
 | D3D_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture, | 
 |                   const SDL_Rect * rect, const void *pixels, int pitch) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *)renderer->driverdata; | 
 |     D3D_TextureData *texturedata = (D3D_TextureData *) texture->driverdata; | 
 |  | 
 |     if (!texturedata) { | 
 |         SDL_SetError("Texture is not currently available"); | 
 |         return -1; | 
 |     } | 
 |  | 
 |     if (D3D_UpdateTextureRep(data->device, &texturedata->texture, texture->format, rect->x, rect->y, rect->w, rect->h, pixels, pitch) < 0) { | 
 |         return -1; | 
 |     } | 
 |  | 
 |     if (texturedata->yuv) { | 
 |         /* Skip to the correct offset into the next texture */ | 
 |         pixels = (const void*)((const Uint8*)pixels + rect->h * pitch); | 
 |  | 
 |         if (D3D_UpdateTextureRep(data->device, texture->format == SDL_PIXELFORMAT_YV12 ? &texturedata->vtexture : &texturedata->utexture, texture->format, rect->x / 2, rect->y / 2, rect->w / 2, rect->h / 2, pixels, pitch / 2) < 0) { | 
 |             return -1; | 
 |         } | 
 |  | 
 |         /* Skip to the correct offset into the next texture */ | 
 |         pixels = (const void*)((const Uint8*)pixels + (rect->h * pitch)/4); | 
 |         if (D3D_UpdateTextureRep(data->device, texture->format == SDL_PIXELFORMAT_YV12 ? &texturedata->utexture : &texturedata->vtexture, texture->format, rect->x / 2, rect->y / 2, rect->w / 2, rect->h / 2, pixels, pitch / 2) < 0) { | 
 |             return -1; | 
 |         } | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 | static int | 
 | D3D_UpdateTextureYUV(SDL_Renderer * renderer, SDL_Texture * texture, | 
 |                      const SDL_Rect * rect, | 
 |                      const Uint8 *Yplane, int Ypitch, | 
 |                      const Uint8 *Uplane, int Upitch, | 
 |                      const Uint8 *Vplane, int Vpitch) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *)renderer->driverdata; | 
 |     D3D_TextureData *texturedata = (D3D_TextureData *) texture->driverdata; | 
 |  | 
 |     if (!texturedata) { | 
 |         SDL_SetError("Texture is not currently available"); | 
 |         return -1; | 
 |     } | 
 |  | 
 |     if (D3D_UpdateTextureRep(data->device, &texturedata->texture, texture->format, rect->x, rect->y, rect->w, rect->h, Yplane, Ypitch) < 0) { | 
 |         return -1; | 
 |     } | 
 |     if (D3D_UpdateTextureRep(data->device, &texturedata->utexture, texture->format, rect->x / 2, rect->y / 2, rect->w / 2, rect->h / 2, Uplane, Upitch) < 0) { | 
 |         return -1; | 
 |     } | 
 |     if (D3D_UpdateTextureRep(data->device, &texturedata->vtexture, texture->format, rect->x / 2, rect->y / 2, rect->w / 2, rect->h / 2, Vplane, Vpitch) < 0) { | 
 |         return -1; | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 | static int | 
 | D3D_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture, | 
 |                 const SDL_Rect * rect, void **pixels, int *pitch) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *)renderer->driverdata; | 
 |     D3D_TextureData *texturedata = (D3D_TextureData *)texture->driverdata; | 
 |     IDirect3DDevice9 *device = data->device; | 
 |  | 
 |     if (!texturedata) { | 
 |         SDL_SetError("Texture is not currently available"); | 
 |         return -1; | 
 |     } | 
 |  | 
 |     texturedata->locked_rect = *rect; | 
 |  | 
 |     if (texturedata->yuv) { | 
 |         /* It's more efficient to upload directly... */ | 
 |         if (!texturedata->pixels) { | 
 |             texturedata->pitch = texture->w; | 
 |             texturedata->pixels = (Uint8 *)SDL_malloc((texture->h * texturedata->pitch * 3) / 2); | 
 |             if (!texturedata->pixels) { | 
 |                 return SDL_OutOfMemory(); | 
 |             } | 
 |         } | 
 |         *pixels = | 
 |             (void *) ((Uint8 *) texturedata->pixels + rect->y * texturedata->pitch + | 
 |                       rect->x * SDL_BYTESPERPIXEL(texture->format)); | 
 |         *pitch = texturedata->pitch; | 
 |     } else { | 
 |         RECT d3drect; | 
 |         D3DLOCKED_RECT locked; | 
 |         HRESULT result; | 
 |  | 
 |         if (D3D_CreateStagingTexture(device, &texturedata->texture) < 0) { | 
 |             return -1; | 
 |         } | 
 |  | 
 |         d3drect.left = rect->x; | 
 |         d3drect.right = rect->x + rect->w; | 
 |         d3drect.top = rect->y; | 
 |         d3drect.bottom = rect->y + rect->h; | 
 |  | 
 |         result = IDirect3DTexture9_LockRect(texturedata->texture.staging, 0, &locked, &d3drect, 0); | 
 |         if (FAILED(result)) { | 
 |             return D3D_SetError("LockRect()", result); | 
 |         } | 
 |         *pixels = locked.pBits; | 
 |         *pitch = locked.Pitch; | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 | static void | 
 | D3D_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture) | 
 | { | 
 |     /*D3D_RenderData *data = (D3D_RenderData *)renderer->driverdata;*/ | 
 |     D3D_TextureData *texturedata = (D3D_TextureData *)texture->driverdata; | 
 |  | 
 |     if (!texturedata) { | 
 |         return; | 
 |     } | 
 |  | 
 |     if (texturedata->yuv) { | 
 |         const SDL_Rect *rect = &texturedata->locked_rect; | 
 |         void *pixels = | 
 |             (void *) ((Uint8 *) texturedata->pixels + rect->y * texturedata->pitch + | 
 |                       rect->x * SDL_BYTESPERPIXEL(texture->format)); | 
 |         D3D_UpdateTexture(renderer, texture, rect, pixels, texturedata->pitch); | 
 |     } else { | 
 |         IDirect3DTexture9_UnlockRect(texturedata->texture.staging, 0); | 
 |         texturedata->texture.dirty = SDL_TRUE; | 
 |    } | 
 | } | 
 |  | 
 | static int | 
 | D3D_SetRenderTargetInternal(SDL_Renderer * renderer, SDL_Texture * texture) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; | 
 |     D3D_TextureData *texturedata; | 
 |     D3D_TextureRep *texturerep; | 
 |     HRESULT result; | 
 |     IDirect3DDevice9 *device = data->device; | 
 |  | 
 |     /* Release the previous render target if it wasn't the default one */ | 
 |     if (data->currentRenderTarget != NULL) { | 
 |         IDirect3DSurface9_Release(data->currentRenderTarget); | 
 |         data->currentRenderTarget = NULL; | 
 |     } | 
 |  | 
 |     if (texture == NULL) { | 
 |         IDirect3DDevice9_SetRenderTarget(data->device, 0, data->defaultRenderTarget); | 
 |         return 0; | 
 |     } | 
 |  | 
 |     texturedata = (D3D_TextureData *)texture->driverdata; | 
 |     if (!texturedata) { | 
 |         SDL_SetError("Texture is not currently available"); | 
 |         return -1; | 
 |     } | 
 |  | 
 |     /* Make sure the render target is updated if it was locked and written to */ | 
 |     texturerep = &texturedata->texture; | 
 |     if (texturerep->dirty && texturerep->staging) { | 
 |         if (!texturerep->texture) { | 
 |             result = IDirect3DDevice9_CreateTexture(device, texturerep->w, texturerep->h, 1, texturerep->usage, | 
 |                 PixelFormatToD3DFMT(texturerep->format), D3DPOOL_DEFAULT, &texturerep->texture, NULL); | 
 |             if (FAILED(result)) { | 
 |                 return D3D_SetError("CreateTexture(D3DPOOL_DEFAULT)", result); | 
 |             } | 
 |         } | 
 |  | 
 |         result = IDirect3DDevice9_UpdateTexture(device, (IDirect3DBaseTexture9 *)texturerep->staging, (IDirect3DBaseTexture9 *)texturerep->texture); | 
 |         if (FAILED(result)) { | 
 |             return D3D_SetError("UpdateTexture()", result); | 
 |         } | 
 |         texturerep->dirty = SDL_FALSE; | 
 |     } | 
 |  | 
 |     result = IDirect3DTexture9_GetSurfaceLevel(texturedata->texture.texture, 0, &data->currentRenderTarget); | 
 |     if(FAILED(result)) { | 
 |         return D3D_SetError("GetSurfaceLevel()", result); | 
 |     } | 
 |     result = IDirect3DDevice9_SetRenderTarget(data->device, 0, data->currentRenderTarget); | 
 |     if(FAILED(result)) { | 
 |         return D3D_SetError("SetRenderTarget()", result); | 
 |     } | 
 |  | 
 |     return 0; | 
 | } | 
 |  | 
 | static int | 
 | D3D_SetRenderTarget(SDL_Renderer * renderer, SDL_Texture * texture) | 
 | { | 
 |     D3D_ActivateRenderer(renderer); | 
 |  | 
 |     return D3D_SetRenderTargetInternal(renderer, texture); | 
 | } | 
 |  | 
 | static int | 
 | D3D_UpdateViewport(SDL_Renderer * renderer) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; | 
 |     D3DVIEWPORT9 viewport; | 
 |     D3DMATRIX matrix; | 
 |  | 
 |     /* Set the viewport */ | 
 |     viewport.X = renderer->viewport.x; | 
 |     viewport.Y = renderer->viewport.y; | 
 |     viewport.Width = renderer->viewport.w; | 
 |     viewport.Height = renderer->viewport.h; | 
 |     viewport.MinZ = 0.0f; | 
 |     viewport.MaxZ = 1.0f; | 
 |     IDirect3DDevice9_SetViewport(data->device, &viewport); | 
 |  | 
 |     /* Set an orthographic projection matrix */ | 
 |     if (renderer->viewport.w && renderer->viewport.h) { | 
 |         matrix.m[0][0] = 2.0f / renderer->viewport.w; | 
 |         matrix.m[0][1] = 0.0f; | 
 |         matrix.m[0][2] = 0.0f; | 
 |         matrix.m[0][3] = 0.0f; | 
 |         matrix.m[1][0] = 0.0f; | 
 |         matrix.m[1][1] = -2.0f / renderer->viewport.h; | 
 |         matrix.m[1][2] = 0.0f; | 
 |         matrix.m[1][3] = 0.0f; | 
 |         matrix.m[2][0] = 0.0f; | 
 |         matrix.m[2][1] = 0.0f; | 
 |         matrix.m[2][2] = 1.0f; | 
 |         matrix.m[2][3] = 0.0f; | 
 |         matrix.m[3][0] = -1.0f; | 
 |         matrix.m[3][1] = 1.0f; | 
 |         matrix.m[3][2] = 0.0f; | 
 |         matrix.m[3][3] = 1.0f; | 
 |         IDirect3DDevice9_SetTransform(data->device, D3DTS_PROJECTION, &matrix); | 
 |     } | 
 |  | 
 |     return 0; | 
 | } | 
 |  | 
 | static int | 
 | D3D_UpdateClipRect(SDL_Renderer * renderer) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; | 
 |  | 
 |     if (renderer->clipping_enabled) { | 
 |         const SDL_Rect *rect = &renderer->clip_rect; | 
 |         RECT r; | 
 |         HRESULT result; | 
 |  | 
 |         IDirect3DDevice9_SetRenderState(data->device, D3DRS_SCISSORTESTENABLE, TRUE); | 
 |         r.left = renderer->viewport.x + rect->x; | 
 |         r.top = renderer->viewport.y + rect->y; | 
 |         r.right = renderer->viewport.x + rect->x + rect->w; | 
 |         r.bottom = renderer->viewport.y + rect->y + rect->h; | 
 |  | 
 |         result = IDirect3DDevice9_SetScissorRect(data->device, &r); | 
 |         if (result != D3D_OK) { | 
 |             D3D_SetError("SetScissor()", result); | 
 |             return -1; | 
 |         } | 
 |     } else { | 
 |         IDirect3DDevice9_SetRenderState(data->device, D3DRS_SCISSORTESTENABLE, FALSE); | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 | static int | 
 | D3D_RenderClear(SDL_Renderer * renderer) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; | 
 |     DWORD color; | 
 |     HRESULT result; | 
 |     int BackBufferWidth, BackBufferHeight; | 
 |  | 
 |     if (D3D_ActivateRenderer(renderer) < 0) { | 
 |         return -1; | 
 |     } | 
 |  | 
 |     color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b); | 
 |  | 
 |     if (renderer->target) { | 
 |         BackBufferWidth = renderer->target->w; | 
 |         BackBufferHeight = renderer->target->h; | 
 |     } else { | 
 |         BackBufferWidth = data->pparams.BackBufferWidth; | 
 |         BackBufferHeight = data->pparams.BackBufferHeight; | 
 |     } | 
 |  | 
 |     if (renderer->clipping_enabled) { | 
 |         IDirect3DDevice9_SetRenderState(data->device, D3DRS_SCISSORTESTENABLE, FALSE); | 
 |     } | 
 |  | 
 |     /* Don't reset the viewport if we don't have to! */ | 
 |     if (!renderer->viewport.x && !renderer->viewport.y && | 
 |         renderer->viewport.w == BackBufferWidth && | 
 |         renderer->viewport.h == BackBufferHeight) { | 
 |         result = IDirect3DDevice9_Clear(data->device, 0, NULL, D3DCLEAR_TARGET, color, 0.0f, 0); | 
 |     } else { | 
 |         D3DVIEWPORT9 viewport; | 
 |  | 
 |         /* Clear is defined to clear the entire render target */ | 
 |         viewport.X = 0; | 
 |         viewport.Y = 0; | 
 |         viewport.Width = BackBufferWidth; | 
 |         viewport.Height = BackBufferHeight; | 
 |         viewport.MinZ = 0.0f; | 
 |         viewport.MaxZ = 1.0f; | 
 |         IDirect3DDevice9_SetViewport(data->device, &viewport); | 
 |  | 
 |         result = IDirect3DDevice9_Clear(data->device, 0, NULL, D3DCLEAR_TARGET, color, 0.0f, 0); | 
 |  | 
 |         /* Reset the viewport */ | 
 |         viewport.X = renderer->viewport.x; | 
 |         viewport.Y = renderer->viewport.y; | 
 |         viewport.Width = renderer->viewport.w; | 
 |         viewport.Height = renderer->viewport.h; | 
 |         viewport.MinZ = 0.0f; | 
 |         viewport.MaxZ = 1.0f; | 
 |         IDirect3DDevice9_SetViewport(data->device, &viewport); | 
 |     } | 
 |  | 
 |     if (renderer->clipping_enabled) { | 
 |         IDirect3DDevice9_SetRenderState(data->device, D3DRS_SCISSORTESTENABLE, TRUE); | 
 |     } | 
 |  | 
 |     if (FAILED(result)) { | 
 |         return D3D_SetError("Clear()", result); | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 | static void | 
 | D3D_SetBlendMode(D3D_RenderData * data, int blendMode) | 
 | { | 
 |     switch (blendMode) { | 
 |     case SDL_BLENDMODE_NONE: | 
 |         IDirect3DDevice9_SetRenderState(data->device, D3DRS_ALPHABLENDENABLE, | 
 |                                         FALSE); | 
 |         break; | 
 |     case SDL_BLENDMODE_BLEND: | 
 |         IDirect3DDevice9_SetRenderState(data->device, D3DRS_ALPHABLENDENABLE, | 
 |                                         TRUE); | 
 |         IDirect3DDevice9_SetRenderState(data->device, D3DRS_SRCBLEND, | 
 |                                         D3DBLEND_SRCALPHA); | 
 |         IDirect3DDevice9_SetRenderState(data->device, D3DRS_DESTBLEND, | 
 |                                         D3DBLEND_INVSRCALPHA); | 
 |         if (data->enableSeparateAlphaBlend) { | 
 |             IDirect3DDevice9_SetRenderState(data->device, D3DRS_SRCBLENDALPHA, | 
 |                                             D3DBLEND_ONE); | 
 |             IDirect3DDevice9_SetRenderState(data->device, D3DRS_DESTBLENDALPHA, | 
 |                                             D3DBLEND_INVSRCALPHA); | 
 |         } | 
 |         break; | 
 |     case SDL_BLENDMODE_ADD: | 
 |         IDirect3DDevice9_SetRenderState(data->device, D3DRS_ALPHABLENDENABLE, | 
 |                                         TRUE); | 
 |         IDirect3DDevice9_SetRenderState(data->device, D3DRS_SRCBLEND, | 
 |                                         D3DBLEND_SRCALPHA); | 
 |         IDirect3DDevice9_SetRenderState(data->device, D3DRS_DESTBLEND, | 
 |                                         D3DBLEND_ONE); | 
 |         if (data->enableSeparateAlphaBlend) { | 
 |             IDirect3DDevice9_SetRenderState(data->device, D3DRS_SRCBLENDALPHA, | 
 |                                             D3DBLEND_ZERO); | 
 |             IDirect3DDevice9_SetRenderState(data->device, D3DRS_DESTBLENDALPHA, | 
 |                                             D3DBLEND_ONE); | 
 |         } | 
 |         break; | 
 |     case SDL_BLENDMODE_MOD: | 
 |         IDirect3DDevice9_SetRenderState(data->device, D3DRS_ALPHABLENDENABLE, | 
 |                                         TRUE); | 
 |         IDirect3DDevice9_SetRenderState(data->device, D3DRS_SRCBLEND, | 
 |                                         D3DBLEND_ZERO); | 
 |         IDirect3DDevice9_SetRenderState(data->device, D3DRS_DESTBLEND, | 
 |                                         D3DBLEND_SRCCOLOR); | 
 |         if (data->enableSeparateAlphaBlend) { | 
 |             IDirect3DDevice9_SetRenderState(data->device, D3DRS_SRCBLENDALPHA, | 
 |                                             D3DBLEND_ZERO); | 
 |             IDirect3DDevice9_SetRenderState(data->device, D3DRS_DESTBLENDALPHA, | 
 |                                             D3DBLEND_ONE); | 
 |         } | 
 |         break; | 
 |     } | 
 | } | 
 |  | 
 | static int | 
 | D3D_RenderDrawPoints(SDL_Renderer * renderer, const SDL_FPoint * points, | 
 |                      int count) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; | 
 |     DWORD color; | 
 |     Vertex *vertices; | 
 |     int i; | 
 |     HRESULT result; | 
 |  | 
 |     if (D3D_ActivateRenderer(renderer) < 0) { | 
 |         return -1; | 
 |     } | 
 |  | 
 |     D3D_SetBlendMode(data, renderer->blendMode); | 
 |  | 
 |     result = | 
 |         IDirect3DDevice9_SetTexture(data->device, 0, | 
 |                                     (IDirect3DBaseTexture9 *) 0); | 
 |     if (FAILED(result)) { | 
 |         return D3D_SetError("SetTexture()", result); | 
 |     } | 
 |  | 
 |     color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b); | 
 |  | 
 |     vertices = SDL_stack_alloc(Vertex, count); | 
 |     for (i = 0; i < count; ++i) { | 
 |         vertices[i].x = points[i].x; | 
 |         vertices[i].y = points[i].y; | 
 |         vertices[i].z = 0.0f; | 
 |         vertices[i].color = color; | 
 |         vertices[i].u = 0.0f; | 
 |         vertices[i].v = 0.0f; | 
 |     } | 
 |     result = | 
 |         IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_POINTLIST, count, | 
 |                                          vertices, sizeof(*vertices)); | 
 |     SDL_stack_free(vertices); | 
 |     if (FAILED(result)) { | 
 |         return D3D_SetError("DrawPrimitiveUP()", result); | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 | static int | 
 | D3D_RenderDrawLines(SDL_Renderer * renderer, const SDL_FPoint * points, | 
 |                     int count) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; | 
 |     DWORD color; | 
 |     Vertex *vertices; | 
 |     int i; | 
 |     HRESULT result; | 
 |  | 
 |     if (D3D_ActivateRenderer(renderer) < 0) { | 
 |         return -1; | 
 |     } | 
 |  | 
 |     D3D_SetBlendMode(data, renderer->blendMode); | 
 |  | 
 |     result = | 
 |         IDirect3DDevice9_SetTexture(data->device, 0, | 
 |                                     (IDirect3DBaseTexture9 *) 0); | 
 |     if (FAILED(result)) { | 
 |         return D3D_SetError("SetTexture()", result); | 
 |     } | 
 |  | 
 |     color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b); | 
 |  | 
 |     vertices = SDL_stack_alloc(Vertex, count); | 
 |     for (i = 0; i < count; ++i) { | 
 |         vertices[i].x = points[i].x; | 
 |         vertices[i].y = points[i].y; | 
 |         vertices[i].z = 0.0f; | 
 |         vertices[i].color = color; | 
 |         vertices[i].u = 0.0f; | 
 |         vertices[i].v = 0.0f; | 
 |     } | 
 |     result = | 
 |         IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_LINESTRIP, count-1, | 
 |                                          vertices, sizeof(*vertices)); | 
 |  | 
 |     /* DirectX 9 has the same line rasterization semantics as GDI, | 
 |        so we need to close the endpoint of the line */ | 
 |     if (count == 2 || | 
 |         points[0].x != points[count-1].x || points[0].y != points[count-1].y) { | 
 |         vertices[0].x = points[count-1].x; | 
 |         vertices[0].y = points[count-1].y; | 
 |         result = IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_POINTLIST, 1, vertices, sizeof(*vertices)); | 
 |     } | 
 |  | 
 |     SDL_stack_free(vertices); | 
 |     if (FAILED(result)) { | 
 |         return D3D_SetError("DrawPrimitiveUP()", result); | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 | static int | 
 | D3D_RenderFillRects(SDL_Renderer * renderer, const SDL_FRect * rects, | 
 |                     int count) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; | 
 |     DWORD color; | 
 |     int i; | 
 |     float minx, miny, maxx, maxy; | 
 |     Vertex vertices[4]; | 
 |     HRESULT result; | 
 |  | 
 |     if (D3D_ActivateRenderer(renderer) < 0) { | 
 |         return -1; | 
 |     } | 
 |  | 
 |     D3D_SetBlendMode(data, renderer->blendMode); | 
 |  | 
 |     result = | 
 |         IDirect3DDevice9_SetTexture(data->device, 0, | 
 |                                     (IDirect3DBaseTexture9 *) 0); | 
 |     if (FAILED(result)) { | 
 |         return D3D_SetError("SetTexture()", result); | 
 |     } | 
 |  | 
 |     color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b); | 
 |  | 
 |     for (i = 0; i < count; ++i) { | 
 |         const SDL_FRect *rect = &rects[i]; | 
 |  | 
 |         minx = rect->x; | 
 |         miny = rect->y; | 
 |         maxx = rect->x + rect->w; | 
 |         maxy = rect->y + rect->h; | 
 |  | 
 |         vertices[0].x = minx; | 
 |         vertices[0].y = miny; | 
 |         vertices[0].z = 0.0f; | 
 |         vertices[0].color = color; | 
 |         vertices[0].u = 0.0f; | 
 |         vertices[0].v = 0.0f; | 
 |  | 
 |         vertices[1].x = maxx; | 
 |         vertices[1].y = miny; | 
 |         vertices[1].z = 0.0f; | 
 |         vertices[1].color = color; | 
 |         vertices[1].u = 0.0f; | 
 |         vertices[1].v = 0.0f; | 
 |  | 
 |         vertices[2].x = maxx; | 
 |         vertices[2].y = maxy; | 
 |         vertices[2].z = 0.0f; | 
 |         vertices[2].color = color; | 
 |         vertices[2].u = 0.0f; | 
 |         vertices[2].v = 0.0f; | 
 |  | 
 |         vertices[3].x = minx; | 
 |         vertices[3].y = maxy; | 
 |         vertices[3].z = 0.0f; | 
 |         vertices[3].color = color; | 
 |         vertices[3].u = 0.0f; | 
 |         vertices[3].v = 0.0f; | 
 |  | 
 |         result = | 
 |             IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_TRIANGLEFAN, | 
 |                                              2, vertices, sizeof(*vertices)); | 
 |         if (FAILED(result)) { | 
 |             return D3D_SetError("DrawPrimitiveUP()", result); | 
 |         } | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 | static void | 
 | D3D_UpdateTextureScaleMode(D3D_RenderData *data, D3D_TextureData *texturedata, unsigned index) | 
 | { | 
 |     if (texturedata->scaleMode != data->scaleMode[index]) { | 
 |         IDirect3DDevice9_SetSamplerState(data->device, index, D3DSAMP_MINFILTER, | 
 |                                          texturedata->scaleMode); | 
 |         IDirect3DDevice9_SetSamplerState(data->device, index, D3DSAMP_MAGFILTER, | 
 |                                          texturedata->scaleMode); | 
 |         data->scaleMode[index] = texturedata->scaleMode; | 
 |     } | 
 | } | 
 |  | 
 | static int | 
 | D3D_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture, | 
 |                const SDL_Rect * srcrect, const SDL_FRect * dstrect) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; | 
 |     D3D_TextureData *texturedata; | 
 |     LPDIRECT3DPIXELSHADER9 shader = NULL; | 
 |     float minx, miny, maxx, maxy; | 
 |     float minu, maxu, minv, maxv; | 
 |     DWORD color; | 
 |     Vertex vertices[4]; | 
 |     HRESULT result; | 
 |  | 
 |     if (D3D_ActivateRenderer(renderer) < 0) { | 
 |         return -1; | 
 |     } | 
 |  | 
 |     texturedata = (D3D_TextureData *)texture->driverdata; | 
 |     if (!texturedata) { | 
 |         SDL_SetError("Texture is not currently available"); | 
 |         return -1; | 
 |     } | 
 |  | 
 |     minx = dstrect->x - 0.5f; | 
 |     miny = dstrect->y - 0.5f; | 
 |     maxx = dstrect->x + dstrect->w - 0.5f; | 
 |     maxy = dstrect->y + dstrect->h - 0.5f; | 
 |  | 
 |     minu = (float) srcrect->x / texture->w; | 
 |     maxu = (float) (srcrect->x + srcrect->w) / texture->w; | 
 |     minv = (float) srcrect->y / texture->h; | 
 |     maxv = (float) (srcrect->y + srcrect->h) / texture->h; | 
 |  | 
 |     color = D3DCOLOR_ARGB(texture->a, texture->r, texture->g, texture->b); | 
 |  | 
 |     vertices[0].x = minx; | 
 |     vertices[0].y = miny; | 
 |     vertices[0].z = 0.0f; | 
 |     vertices[0].color = color; | 
 |     vertices[0].u = minu; | 
 |     vertices[0].v = minv; | 
 |  | 
 |     vertices[1].x = maxx; | 
 |     vertices[1].y = miny; | 
 |     vertices[1].z = 0.0f; | 
 |     vertices[1].color = color; | 
 |     vertices[1].u = maxu; | 
 |     vertices[1].v = minv; | 
 |  | 
 |     vertices[2].x = maxx; | 
 |     vertices[2].y = maxy; | 
 |     vertices[2].z = 0.0f; | 
 |     vertices[2].color = color; | 
 |     vertices[2].u = maxu; | 
 |     vertices[2].v = maxv; | 
 |  | 
 |     vertices[3].x = minx; | 
 |     vertices[3].y = maxy; | 
 |     vertices[3].z = 0.0f; | 
 |     vertices[3].color = color; | 
 |     vertices[3].u = minu; | 
 |     vertices[3].v = maxv; | 
 |  | 
 |     D3D_SetBlendMode(data, texture->blendMode); | 
 |  | 
 |     D3D_UpdateTextureScaleMode(data, texturedata, 0); | 
 |  | 
 |     if (D3D_BindTextureRep(data->device, &texturedata->texture, 0) < 0) { | 
 |         return -1; | 
 |     } | 
 |  | 
 |     if (texturedata->yuv) { | 
 |         shader = data->ps_yuv; | 
 |  | 
 |         D3D_UpdateTextureScaleMode(data, texturedata, 1); | 
 |         D3D_UpdateTextureScaleMode(data, texturedata, 2); | 
 |  | 
 |         if (D3D_BindTextureRep(data->device, &texturedata->utexture, 1) < 0) { | 
 |             return -1; | 
 |         } | 
 |         if (D3D_BindTextureRep(data->device, &texturedata->vtexture, 2) < 0) { | 
 |             return -1; | 
 |         } | 
 |     } | 
 |  | 
 |     if (shader) { | 
 |         result = IDirect3DDevice9_SetPixelShader(data->device, shader); | 
 |         if (FAILED(result)) { | 
 |             return D3D_SetError("SetShader()", result); | 
 |         } | 
 |     } | 
 |     result = | 
 |         IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_TRIANGLEFAN, 2, | 
 |                                          vertices, sizeof(*vertices)); | 
 |     if (FAILED(result)) { | 
 |         return D3D_SetError("DrawPrimitiveUP()", result); | 
 |     } | 
 |     if (shader) { | 
 |         result = IDirect3DDevice9_SetPixelShader(data->device, NULL); | 
 |         if (FAILED(result)) { | 
 |             return D3D_SetError("SetShader()", result); | 
 |         } | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 |  | 
 | static int | 
 | D3D_RenderCopyEx(SDL_Renderer * renderer, SDL_Texture * texture, | 
 |                const SDL_Rect * srcrect, const SDL_FRect * dstrect, | 
 |                const double angle, const SDL_FPoint * center, const SDL_RendererFlip flip) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; | 
 |     D3D_TextureData *texturedata; | 
 |     LPDIRECT3DPIXELSHADER9 shader = NULL; | 
 |     float minx, miny, maxx, maxy; | 
 |     float minu, maxu, minv, maxv; | 
 |     float centerx, centery; | 
 |     DWORD color; | 
 |     Vertex vertices[4]; | 
 |     Float4X4 modelMatrix; | 
 |     HRESULT result; | 
 |  | 
 |     if (D3D_ActivateRenderer(renderer) < 0) { | 
 |         return -1; | 
 |     } | 
 |  | 
 |     texturedata = (D3D_TextureData *)texture->driverdata; | 
 |     if (!texturedata) { | 
 |         SDL_SetError("Texture is not currently available"); | 
 |         return -1; | 
 |     } | 
 |  | 
 |     centerx = center->x; | 
 |     centery = center->y; | 
 |  | 
 |     minx = -centerx; | 
 |     maxx = dstrect->w - centerx; | 
 |     miny = -centery; | 
 |     maxy = dstrect->h - centery; | 
 |  | 
 |     minu = (float) srcrect->x / texture->w; | 
 |     maxu = (float) (srcrect->x + srcrect->w) / texture->w; | 
 |     minv = (float) srcrect->y / texture->h; | 
 |     maxv = (float) (srcrect->y + srcrect->h) / texture->h; | 
 |  | 
 |     if (flip & SDL_FLIP_HORIZONTAL) { | 
 |         float tmp = maxu; | 
 |         maxu = minu; | 
 |         minu = tmp; | 
 |     } | 
 |     if (flip & SDL_FLIP_VERTICAL) { | 
 |         float tmp = maxv; | 
 |         maxv = minv; | 
 |         minv = tmp; | 
 |     } | 
 |  | 
 |     color = D3DCOLOR_ARGB(texture->a, texture->r, texture->g, texture->b); | 
 |  | 
 |     vertices[0].x = minx; | 
 |     vertices[0].y = miny; | 
 |     vertices[0].z = 0.0f; | 
 |     vertices[0].color = color; | 
 |     vertices[0].u = minu; | 
 |     vertices[0].v = minv; | 
 |  | 
 |     vertices[1].x = maxx; | 
 |     vertices[1].y = miny; | 
 |     vertices[1].z = 0.0f; | 
 |     vertices[1].color = color; | 
 |     vertices[1].u = maxu; | 
 |     vertices[1].v = minv; | 
 |  | 
 |     vertices[2].x = maxx; | 
 |     vertices[2].y = maxy; | 
 |     vertices[2].z = 0.0f; | 
 |     vertices[2].color = color; | 
 |     vertices[2].u = maxu; | 
 |     vertices[2].v = maxv; | 
 |  | 
 |     vertices[3].x = minx; | 
 |     vertices[3].y = maxy; | 
 |     vertices[3].z = 0.0f; | 
 |     vertices[3].color = color; | 
 |     vertices[3].u = minu; | 
 |     vertices[3].v = maxv; | 
 |  | 
 |     D3D_SetBlendMode(data, texture->blendMode); | 
 |  | 
 |     /* Rotate and translate */ | 
 |     modelMatrix = MatrixMultiply( | 
 |             MatrixRotationZ((float)(M_PI * (float) angle / 180.0f)), | 
 |             MatrixTranslation(dstrect->x + center->x - 0.5f, dstrect->y + center->y - 0.5f, 0)); | 
 |     IDirect3DDevice9_SetTransform(data->device, D3DTS_VIEW, (D3DMATRIX*)&modelMatrix); | 
 |  | 
 |     D3D_UpdateTextureScaleMode(data, texturedata, 0); | 
 |  | 
 |     if (D3D_BindTextureRep(data->device, &texturedata->texture, 0) < 0) { | 
 |         return -1; | 
 |     } | 
 |  | 
 |     if (texturedata->yuv) { | 
 |         shader = data->ps_yuv; | 
 |  | 
 |         D3D_UpdateTextureScaleMode(data, texturedata, 1); | 
 |         D3D_UpdateTextureScaleMode(data, texturedata, 2); | 
 |          | 
 |         if (D3D_BindTextureRep(data->device, &texturedata->utexture, 1) < 0) { | 
 |             return -1; | 
 |         } | 
 |         if (D3D_BindTextureRep(data->device, &texturedata->vtexture, 2) < 0) { | 
 |             return -1; | 
 |         } | 
 |     } | 
 |  | 
 |     if (shader) { | 
 |         result = IDirect3DDevice9_SetPixelShader(data->device, shader); | 
 |         if (FAILED(result)) { | 
 |             return D3D_SetError("SetShader()", result); | 
 |         } | 
 |     } | 
 |     result = | 
 |         IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_TRIANGLEFAN, 2, | 
 |                                          vertices, sizeof(*vertices)); | 
 |     if (FAILED(result)) { | 
 |         return D3D_SetError("DrawPrimitiveUP()", result); | 
 |     } | 
 |     if (shader) { | 
 |         result = IDirect3DDevice9_SetPixelShader(data->device, NULL); | 
 |         if (FAILED(result)) { | 
 |             return D3D_SetError("SetShader()", result); | 
 |         } | 
 |     } | 
 |  | 
 |     modelMatrix = MatrixIdentity(); | 
 |     IDirect3DDevice9_SetTransform(data->device, D3DTS_VIEW, (D3DMATRIX*)&modelMatrix); | 
 |     return 0; | 
 | } | 
 |  | 
 | static int | 
 | D3D_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect, | 
 |                      Uint32 format, void * pixels, int pitch) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; | 
 |     D3DSURFACE_DESC desc; | 
 |     LPDIRECT3DSURFACE9 backBuffer; | 
 |     LPDIRECT3DSURFACE9 surface; | 
 |     RECT d3drect; | 
 |     D3DLOCKED_RECT locked; | 
 |     HRESULT result; | 
 |  | 
 |     if (data->currentRenderTarget) { | 
 |         backBuffer = data->currentRenderTarget; | 
 |     } else { | 
 |         backBuffer = data->defaultRenderTarget; | 
 |     } | 
 |  | 
 |     result = IDirect3DSurface9_GetDesc(backBuffer, &desc); | 
 |     if (FAILED(result)) { | 
 |         IDirect3DSurface9_Release(backBuffer); | 
 |         return D3D_SetError("GetDesc()", result); | 
 |     } | 
 |  | 
 |     result = IDirect3DDevice9_CreateOffscreenPlainSurface(data->device, desc.Width, desc.Height, desc.Format, D3DPOOL_SYSTEMMEM, &surface, NULL); | 
 |     if (FAILED(result)) { | 
 |         IDirect3DSurface9_Release(backBuffer); | 
 |         return D3D_SetError("CreateOffscreenPlainSurface()", result); | 
 |     } | 
 |  | 
 |     result = IDirect3DDevice9_GetRenderTargetData(data->device, backBuffer, surface); | 
 |     if (FAILED(result)) { | 
 |         IDirect3DSurface9_Release(surface); | 
 |         IDirect3DSurface9_Release(backBuffer); | 
 |         return D3D_SetError("GetRenderTargetData()", result); | 
 |     } | 
 |  | 
 |     d3drect.left = rect->x; | 
 |     d3drect.right = rect->x + rect->w; | 
 |     d3drect.top = rect->y; | 
 |     d3drect.bottom = rect->y + rect->h; | 
 |  | 
 |     result = IDirect3DSurface9_LockRect(surface, &locked, &d3drect, D3DLOCK_READONLY); | 
 |     if (FAILED(result)) { | 
 |         IDirect3DSurface9_Release(surface); | 
 |         IDirect3DSurface9_Release(backBuffer); | 
 |         return D3D_SetError("LockRect()", result); | 
 |     } | 
 |  | 
 |     SDL_ConvertPixels(rect->w, rect->h, | 
 |                       D3DFMTToPixelFormat(desc.Format), locked.pBits, locked.Pitch, | 
 |                       format, pixels, pitch); | 
 |  | 
 |     IDirect3DSurface9_UnlockRect(surface); | 
 |  | 
 |     IDirect3DSurface9_Release(surface); | 
 |  | 
 |     return 0; | 
 | } | 
 |  | 
 | static void | 
 | D3D_RenderPresent(SDL_Renderer * renderer) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; | 
 |     HRESULT result; | 
 |  | 
 |     if (!data->beginScene) { | 
 |         IDirect3DDevice9_EndScene(data->device); | 
 |         data->beginScene = SDL_TRUE; | 
 |     } | 
 |  | 
 |     result = IDirect3DDevice9_TestCooperativeLevel(data->device); | 
 |     if (result == D3DERR_DEVICELOST) { | 
 |         /* We'll reset later */ | 
 |         return; | 
 |     } | 
 |     if (result == D3DERR_DEVICENOTRESET) { | 
 |         D3D_Reset(renderer); | 
 |     } | 
 |     result = IDirect3DDevice9_Present(data->device, NULL, NULL, NULL, NULL); | 
 |     if (FAILED(result)) { | 
 |         D3D_SetError("Present()", result); | 
 |     } | 
 | } | 
 |  | 
 | static void | 
 | D3D_DestroyTexture(SDL_Renderer * renderer, SDL_Texture * texture) | 
 | { | 
 |     D3D_TextureData *data = (D3D_TextureData *) texture->driverdata; | 
 |  | 
 |     if (!data) { | 
 |         return; | 
 |     } | 
 |     D3D_DestroyTextureRep(&data->texture); | 
 |     D3D_DestroyTextureRep(&data->utexture); | 
 |     D3D_DestroyTextureRep(&data->vtexture); | 
 |     SDL_free(data->pixels); | 
 |     SDL_free(data); | 
 |     texture->driverdata = NULL; | 
 | } | 
 |  | 
 | static void | 
 | D3D_DestroyRenderer(SDL_Renderer * renderer) | 
 | { | 
 |     D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; | 
 |  | 
 |     if (data) { | 
 |         /* Release the render target */ | 
 |         if (data->defaultRenderTarget) { | 
 |             IDirect3DSurface9_Release(data->defaultRenderTarget); | 
 |             data->defaultRenderTarget = NULL; | 
 |         } | 
 |         if (data->currentRenderTarget != NULL) { | 
 |             IDirect3DSurface9_Release(data->currentRenderTarget); | 
 |             data->currentRenderTarget = NULL; | 
 |         } | 
 |         if (data->ps_yuv) { | 
 |             IDirect3DPixelShader9_Release(data->ps_yuv); | 
 |         } | 
 |         if (data->device) { | 
 |             IDirect3DDevice9_Release(data->device); | 
 |         } | 
 |         if (data->d3d) { | 
 |             IDirect3D9_Release(data->d3d); | 
 |             SDL_UnloadObject(data->d3dDLL); | 
 |         } | 
 |         SDL_free(data); | 
 |     } | 
 |     SDL_free(renderer); | 
 | } | 
 | #endif /* SDL_VIDEO_RENDER_D3D && !SDL_RENDER_DISABLED */ | 
 |  | 
 | #ifdef __WIN32__ | 
 | /* This function needs to always exist on Windows, for the Dynamic API. */ | 
 | IDirect3DDevice9 * | 
 | SDL_RenderGetD3D9Device(SDL_Renderer * renderer) | 
 | { | 
 |     IDirect3DDevice9 *device = NULL; | 
 |  | 
 | #if SDL_VIDEO_RENDER_D3D && !SDL_RENDER_DISABLED | 
 |     D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata; | 
 |  | 
 |     /* Make sure that this is a D3D renderer */ | 
 |     if (renderer->DestroyRenderer != D3D_DestroyRenderer) { | 
 |         SDL_SetError("Renderer is not a D3D renderer"); | 
 |         return NULL; | 
 |     } | 
 |  | 
 |     device = data->device; | 
 |     if (device) { | 
 |         IDirect3DDevice9_AddRef(device); | 
 |     } | 
 | #endif /* SDL_VIDEO_RENDER_D3D && !SDL_RENDER_DISABLED */ | 
 |  | 
 |     return device; | 
 | } | 
 | #endif /* __WIN32__ */ | 
 |  | 
 | /* vi: set ts=4 sw=4 expandtab: */ |