/*

SDL - Simple DirectMedia Layer

Copyright (C) 1997-2009 Sam Lantinga

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public

License along with this library; if not, write to the Free Software

Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

Sam Lantinga

slouken@libsdl.org

*/

#include "SDL_config.h"

#if SDL_VIDEO_RENDER_D3D

#include "SDL_win32video.h"

/* Direct3D renderer implementation */

#if 1 /* This takes more memory but you won't lose your texture data */

#define D3DPOOL_SDL D3DPOOL_MANAGED

#define SDL_MEMORY_POOL_MANAGED

#else

#define D3DPOOL_SDL D3DPOOL_DEFAULT

#define SDL_MEMORY_POOL_DEFAULT

#endif

static SDL_Renderer *D3D_CreateRenderer(SDL_Window * window, Uint32 flags);

static int D3D_DisplayModeChanged(SDL_Renderer * renderer);

static int D3D_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture);

static int D3D_SetTexturePalette(SDL_Renderer * renderer,

SDL_Texture * texture,

const SDL_Color * colors, int firstcolor,

int ncolors);

static int D3D_GetTexturePalette(SDL_Renderer * renderer,

SDL_Texture * texture, SDL_Color * colors,

int firstcolor, int ncolors);

static int D3D_SetTextureColorMod(SDL_Renderer * renderer,

SDL_Texture * texture);

static int D3D_SetTextureAlphaMod(SDL_Renderer * renderer,

SDL_Texture * texture);

static int D3D_SetTextureBlendMode(SDL_Renderer * renderer,

SDL_Texture * texture);

static int D3D_SetTextureScaleMode(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_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,

const SDL_Rect * rect, int markDirty,

void **pixels, int *pitch);

static void D3D_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture);

static void D3D_DirtyTexture(SDL_Renderer * renderer, SDL_Texture * texture,

int numrects, const SDL_Rect * rects);

static int D3D_RenderPoint(SDL_Renderer * renderer, int x, int y);

static int D3D_RenderLine(SDL_Renderer * renderer, int x1, int y1, int x2,

int y2);

static int D3D_RenderFill(SDL_Renderer * renderer, const SDL_Rect * rect);

static int D3D_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,

const SDL_Rect * srcrect, const SDL_Rect * dstrect);

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,

{

"d3d",

(SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTCOPY |

SDL_RENDERER_PRESENTFLIP2 | SDL_RENDERER_PRESENTFLIP3 |

SDL_RENDERER_PRESENTDISCARD | SDL_RENDERER_PRESENTVSYNC |

SDL_RENDERER_ACCELERATED),

(SDL_TEXTUREMODULATE_NONE | SDL_TEXTUREMODULATE_COLOR |

SDL_TEXTUREMODULATE_ALPHA),

(SDL_BLENDMODE_NONE | SDL_BLENDMODE_MASK |

SDL_BLENDMODE_BLEND | SDL_BLENDMODE_ADD | SDL_BLENDMODE_MOD),

(SDL_TEXTURESCALEMODE_NONE | SDL_TEXTURESCALEMODE_FAST |

SDL_TEXTURESCALEMODE_SLOW | SDL_TEXTURESCALEMODE_BEST),

12,

{

SDL_PIXELFORMAT_INDEX8,

SDL_PIXELFORMAT_RGB332,

SDL_PIXELFORMAT_RGB444,

SDL_PIXELFORMAT_RGB555,

SDL_PIXELFORMAT_ARGB4444,

SDL_PIXELFORMAT_ARGB1555,

SDL_PIXELFORMAT_RGB565,

SDL_PIXELFORMAT_RGB888,

SDL_PIXELFORMAT_ARGB8888,

SDL_PIXELFORMAT_ARGB2101010,

SDL_PIXELFORMAT_YUY2,

SDL_PIXELFORMAT_UYVY},

0,

0}

};

typedef struct

{

IDirect3DDevice9 *device;

D3DPRESENT_PARAMETERS pparams;

SDL_bool beginScene;

} D3D_RenderData;

typedef struct

{

IDirect3DTexture9 *texture;

} D3D_TextureData;

typedef struct

{

float x, y, z;

float rhw;

DWORD color;

float u, v;

} Vertex;

static void

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;

}

SDL_SetError("%s: %s", prefix, error);

}

static D3DFORMAT

PixelFormatToD3DFMT(Uint32 format)

{

switch (format) {

case SDL_PIXELFORMAT_INDEX8:

return D3DFMT_P8;

case SDL_PIXELFORMAT_RGB332:

return D3DFMT_R3G3B2;

case SDL_PIXELFORMAT_RGB444:

return D3DFMT_X4R4G4B4;

case SDL_PIXELFORMAT_RGB555:

return D3DFMT_X1R5G5B5;

case SDL_PIXELFORMAT_ARGB4444:

return D3DFMT_A4R4G4B4;

case SDL_PIXELFORMAT_ARGB1555:

return D3DFMT_A1R5G5B5;

case SDL_PIXELFORMAT_RGB565:

return D3DFMT_R5G6B5;

case SDL_PIXELFORMAT_RGB888:

return D3DFMT_X8R8G8B8;

case SDL_PIXELFORMAT_ARGB8888:

return D3DFMT_A8R8G8B8;

case SDL_PIXELFORMAT_ARGB2101010:

return D3DFMT_A2R10G10B10;

case SDL_PIXELFORMAT_UYVY:

return D3DFMT_UYVY;

case SDL_PIXELFORMAT_YUY2:

return D3DFMT_YUY2;

default:

return D3DFMT_UNKNOWN;

}

}

void

D3D_AddRenderDriver(_THIS)

{

SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;

if (data->d3d) {

SDL_AddRenderDriver(0, &D3D_RenderDriver);

}

}

SDL_Renderer *

D3D_CreateRenderer(SDL_Window * window, Uint32 flags)

{

SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);

SDL_VideoData *videodata = (SDL_VideoData *) display->device->driverdata;

SDL_WindowData *windowdata = (SDL_WindowData *) window->driverdata;

SDL_Renderer *renderer;

D3D_RenderData *data;

HRESULT result;

D3DPRESENT_PARAMETERS pparams;

IDirect3DSwapChain9 *chain;

D3DCAPS9 caps;

renderer = (SDL_Renderer *) SDL_calloc(1, sizeof(*renderer));

if (!renderer) {

SDL_OutOfMemory();

return NULL;

}

data = (D3D_RenderData *) SDL_calloc(1, sizeof(*data));

if (!data) {

D3D_DestroyRenderer(renderer);

SDL_OutOfMemory();

return NULL;

}

renderer->DisplayModeChanged = D3D_DisplayModeChanged;

renderer->CreateTexture = D3D_CreateTexture;

renderer->SetTexturePalette = D3D_SetTexturePalette;

renderer->GetTexturePalette = D3D_GetTexturePalette;

renderer->SetTextureColorMod = D3D_SetTextureColorMod;

renderer->SetTextureAlphaMod = D3D_SetTextureAlphaMod;

renderer->SetTextureBlendMode = D3D_SetTextureBlendMode;

renderer->SetTextureScaleMode = D3D_SetTextureScaleMode;

renderer->UpdateTexture = D3D_UpdateTexture;

renderer->LockTexture = D3D_LockTexture;

renderer->UnlockTexture = D3D_UnlockTexture;

renderer->DirtyTexture = D3D_DirtyTexture;

renderer->RenderPoint = D3D_RenderPoint;

renderer->RenderLine = D3D_RenderLine;

renderer->RenderFill = D3D_RenderFill;

renderer->RenderCopy = D3D_RenderCopy;

renderer->RenderPresent = D3D_RenderPresent;

renderer->DestroyTexture = D3D_DestroyTexture;

renderer->DestroyRenderer = D3D_DestroyRenderer;

renderer->info = D3D_RenderDriver.info;

renderer->window = window->id;

renderer->driverdata = data;

renderer->info.flags = SDL_RENDERER_ACCELERATED;

SDL_zero(pparams);

pparams.BackBufferWidth = window->w;

pparams.BackBufferHeight = window->h;

if (window->flags & SDL_WINDOW_FULLSCREEN) {

pparams.BackBufferFormat =

PixelFormatToD3DFMT(display->fullscreen_mode.format);

} else {

pparams.BackBufferFormat = D3DFMT_UNKNOWN;

}

if (flags & SDL_RENDERER_PRESENTFLIP2) {

pparams.BackBufferCount = 2;

pparams.SwapEffect = D3DSWAPEFFECT_FLIP;

} else if (flags & SDL_RENDERER_PRESENTFLIP3) {

pparams.BackBufferCount = 3;

pparams.SwapEffect = D3DSWAPEFFECT_FLIP;

} else if (flags & SDL_RENDERER_PRESENTCOPY) {

pparams.BackBufferCount = 1;

pparams.SwapEffect = D3DSWAPEFFECT_COPY;

} else {

pparams.BackBufferCount = 1;

pparams.SwapEffect = D3DSWAPEFFECT_DISCARD;

}

if (window->flags & SDL_WINDOW_FULLSCREEN) {

pparams.Windowed = FALSE;

pparams.FullScreen_RefreshRateInHz =

display->fullscreen_mode.refresh_rate;

} else {

pparams.Windowed = TRUE;

pparams.FullScreen_RefreshRateInHz = 0;

}

if (flags & SDL_RENDERER_PRESENTVSYNC) {

pparams.PresentationInterval = D3DPRESENT_INTERVAL_ONE;

} else {

pparams.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;

}

result = IDirect3D9_CreateDevice(videodata->d3d, D3DADAPTER_DEFAULT, /* FIXME */

D3DDEVTYPE_HAL,

windowdata->hwnd,

D3DCREATE_SOFTWARE_VERTEXPROCESSING,

&pparams, &data->device);

if (FAILED(result)) {

D3D_DestroyRenderer(renderer);

D3D_SetError("CreateDevice()", result);

return NULL;

}

data->beginScene = SDL_TRUE;

/* 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);

switch (pparams.SwapEffect) {

case D3DSWAPEFFECT_COPY:

renderer->info.flags |= SDL_RENDERER_PRESENTCOPY;

break;

case D3DSWAPEFFECT_FLIP:

switch (pparams.BackBufferCount) {

case 2:

renderer->info.flags |= SDL_RENDERER_PRESENTFLIP2;

break;

case 3:

renderer->info.flags |= SDL_RENDERER_PRESENTFLIP3;

break;

}

break;

case D3DSWAPEFFECT_DISCARD:

renderer->info.flags |= SDL_RENDERER_PRESENTDISCARD;

break;

}

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;

/* Set up parameters for rendering */

IDirect3DDevice9_SetVertexShader(data->device, NULL);

IDirect3DDevice9_SetFVF(data->device,

D3DFVF_XYZRHW | D3DFVF_DIFFUSE | D3DFVF_TEX1);

IDirect3DDevice9_SetRenderState(data->device, D3DRS_ZENABLE, D3DZB_FALSE);

IDirect3DDevice9_SetRenderState(data->device, D3DRS_CULLMODE,

D3DCULL_NONE);

IDirect3DDevice9_SetRenderState(data->device, D3DRS_LIGHTING, FALSE);

/* Enable color modulation by diffuse color */

IDirect3DDevice9_SetTextureStageState(data->device, 0, D3DTSS_COLOROP,

D3DTOP_MODULATE);

IDirect3DDevice9_SetTextureStageState(data->device, 0, D3DTSS_COLORARG1,

D3DTA_TEXTURE);

IDirect3DDevice9_SetTextureStageState(data->device, 0, D3DTSS_COLORARG2,

D3DTA_DIFFUSE);

/* Enable alpha modulation by diffuse alpha */

IDirect3DDevice9_SetTextureStageState(data->device, 0, D3DTSS_ALPHAOP,

D3DTOP_MODULATE);

IDirect3DDevice9_SetTextureStageState(data->device, 0, D3DTSS_ALPHAARG1,

D3DTA_TEXTURE);

IDirect3DDevice9_SetTextureStageState(data->device, 0, D3DTSS_ALPHAARG2,

D3DTA_DIFFUSE);

/* Disable second texture stage, since we're done */

IDirect3DDevice9_SetTextureStageState(data->device, 1, D3DTSS_COLOROP,

D3DTOP_DISABLE);

IDirect3DDevice9_SetTextureStageState(data->device, 1, D3DTSS_ALPHAOP,

D3DTOP_DISABLE);

return renderer;

}

static int

D3D_Reset(SDL_Renderer * renderer)

{

D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;

HRESULT result;

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 {

D3D_SetError("Reset()", result);

return -1;

}

}

IDirect3DDevice9_SetVertexShader(data->device, NULL);

IDirect3DDevice9_SetFVF(data->device,

D3DFVF_XYZRHW | D3DFVF_DIFFUSE | D3DFVF_TEX1);

IDirect3DDevice9_SetRenderState(data->device, D3DRS_CULLMODE,

D3DCULL_NONE);

IDirect3DDevice9_SetRenderState(data->device, D3DRS_LIGHTING, FALSE);

return 0;

}

static int

D3D_DisplayModeChanged(SDL_Renderer * renderer)

{

D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;

SDL_Window *window = SDL_GetWindowFromID(renderer->window);

SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);

data->pparams.BackBufferWidth = window->w;

data->pparams.BackBufferHeight = window->h;

if (window->flags & SDL_WINDOW_FULLSCREEN) {

data->pparams.BackBufferFormat =

PixelFormatToD3DFMT(display->fullscreen_mode.format);

} else {

data->pparams.BackBufferFormat = D3DFMT_UNKNOWN;

}

return D3D_Reset(renderer);

}

static int

D3D_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)

{

D3D_RenderData *renderdata = (D3D_RenderData *) renderer->driverdata;

SDL_Window *window = SDL_GetWindowFromID(renderer->window);

SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);

D3D_TextureData *data;

HRESULT result;

data = (D3D_TextureData *) SDL_calloc(1, sizeof(*data));

if (!data) {

SDL_OutOfMemory();

return -1;

}

texture->driverdata = data;

result =

IDirect3DDevice9_CreateTexture(renderdata->device, texture->w,

texture->h, 1, 0,

PixelFormatToD3DFMT(texture->format),

D3DPOOL_SDL, &data->texture, NULL);

if (FAILED(result)) {

D3D_SetError("CreateTexture()", result);

return -1;

}

return 0;

}

static int

D3D_SetTexturePalette(SDL_Renderer * renderer, SDL_Texture * texture,

const SDL_Color * colors, int firstcolor, int ncolors)

{

D3D_RenderData *renderdata = (D3D_RenderData *) renderer->driverdata;

D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;

return 0;

}

static int

D3D_GetTexturePalette(SDL_Renderer * renderer, SDL_Texture * texture,

SDL_Color * colors, int firstcolor, int ncolors)

{

D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;

return 0;

}

static int

D3D_SetTextureColorMod(SDL_Renderer * renderer, SDL_Texture * texture)

{

return 0;

}

static int

D3D_SetTextureAlphaMod(SDL_Renderer * renderer, SDL_Texture * texture)

{

return 0;

}

static int

D3D_SetTextureBlendMode(SDL_Renderer * renderer, SDL_Texture * texture)

{

switch (texture->blendMode) {

case SDL_BLENDMODE_NONE:

case SDL_BLENDMODE_MASK:

case SDL_BLENDMODE_BLEND:

case SDL_BLENDMODE_ADD:

case SDL_BLENDMODE_MOD:

return 0;

default:

SDL_Unsupported();

texture->blendMode = SDL_BLENDMODE_NONE;

return -1;

}

}

static int

D3D_SetTextureScaleMode(SDL_Renderer * renderer, SDL_Texture * texture)

{

switch (texture->scaleMode) {

case SDL_TEXTURESCALEMODE_NONE:

case SDL_TEXTURESCALEMODE_FAST:

case SDL_TEXTURESCALEMODE_SLOW:

case SDL_TEXTURESCALEMODE_BEST:

return 0;

default:

SDL_Unsupported();

texture->scaleMode = SDL_TEXTURESCALEMODE_NONE;

return -1;

}

return 0;

}

#ifdef SDL_MEMORY_POOL_DEFAULT

static int

D3D_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,

const SDL_Rect * rect, const void *pixels, int pitch)

{

D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;

D3D_RenderData *renderdata = (D3D_RenderData *) renderer->driverdata;

IDirect3DTexture9 *temp;

RECT d3drect;

D3DLOCKED_RECT locked;

const Uint8 *src;

Uint8 *dst;

int row, length;

HRESULT result;

result =

IDirect3DDevice9_CreateTexture(renderdata->device, texture->w,

texture->h, 1, 0,

PixelFormatToD3DFMT(texture->format),

D3DPOOL_SYSTEMMEM, &temp, NULL);

if (FAILED(result)) {

D3D_SetError("CreateTexture()", result);

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(temp, 0, &locked, &d3drect, 0);

if (FAILED(result)) {

IDirect3DTexture9_Release(temp);

D3D_SetError("LockRect()", result);

return -1;

}

src = pixels;

dst = locked.pBits;

length = rect->w * SDL_BYTESPERPIXEL(texture->format);

for (row = 0; row < rect->h; ++row) {

SDL_memcpy(dst, src, length);

src += pitch;

dst += locked.Pitch;

}

IDirect3DTexture9_UnlockRect(temp, 0);

result =

IDirect3DDevice9_UpdateTexture(renderdata->device,

(IDirect3DBaseTexture9 *) temp,

(IDirect3DBaseTexture9 *)

data->texture);

IDirect3DTexture9_Release(temp);

if (FAILED(result)) {

D3D_SetError("UpdateTexture()", result);

return -1;

}

return 0;

}

#else

static int

D3D_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,

const SDL_Rect * rect, const void *pixels, int pitch)

{

D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;

D3D_RenderData *renderdata = (D3D_RenderData *) renderer->driverdata;

RECT d3drect;

D3DLOCKED_RECT locked;

const Uint8 *src;

Uint8 *dst;

int row, length;

HRESULT result;

d3drect.left = rect->x;

d3drect.right = rect->x + rect->w;

d3drect.top = rect->y;

d3drect.bottom = rect->y + rect->h;

result =

IDirect3DTexture9_LockRect(data->texture, 0, &locked, &d3drect, 0);

if (FAILED(result)) {

D3D_SetError("LockRect()", result);

return -1;

}

src = pixels;

dst = locked.pBits;

length = rect->w * SDL_BYTESPERPIXEL(texture->format);

for (row = 0; row < rect->h; ++row) {

SDL_memcpy(dst, src, length);

src += pitch;

dst += locked.Pitch;

}

IDirect3DTexture9_UnlockRect(data->texture, 0);

return 0;

}

#endif // SDL_MEMORY_POOL_DEFAULT

static int

D3D_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,

const SDL_Rect * rect, int markDirty, void **pixels,

int *pitch)

{

D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;

RECT d3drect;

D3DLOCKED_RECT locked;

HRESULT result;

d3drect.left = rect->x;

d3drect.right = rect->x + rect->w;

d3drect.top = rect->y;

d3drect.bottom = rect->y + rect->h;

result =

IDirect3DTexture9_LockRect(data->texture, 0, &locked, &d3drect,

markDirty ? 0 : D3DLOCK_NO_DIRTY_UPDATE);

if (FAILED(result)) {

D3D_SetError("LockRect()", result);

return -1;

}

*pixels = locked.pBits;

*pitch = locked.Pitch;

return 0;

}

static void

D3D_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture)

{

D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;

IDirect3DTexture9_UnlockRect(data->texture, 0);

}

static void

D3D_DirtyTexture(SDL_Renderer * renderer, SDL_Texture * texture, int numrects,

const SDL_Rect * rects)

{

D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;

RECT d3drect;

int i;

for (i = 0; i < numrects; ++i) {

const SDL_Rect *rect = &rects[i];

d3drect.left = rect->x;

d3drect.right = rect->x + rect->w;

d3drect.top = rect->y;

d3drect.bottom = rect->y + rect->h;

IDirect3DTexture9_AddDirtyRect(data->texture, &d3drect);

}

}

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_MASK:

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);

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);

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);

break;

}

}

static int

D3D_RenderPoint(SDL_Renderer * renderer, int x, int y)

{

D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;

DWORD color;

Vertex vertices[1];

HRESULT result;

if (data->beginScene) {

IDirect3DDevice9_BeginScene(data->device);

data->beginScene = SDL_FALSE;

}

color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b);

vertices[0].x = (float) x - 0.5f;

vertices[0].y = (float) y - 0.5f;

vertices[0].z = 0.0f;

vertices[0].rhw = 1.0f;

vertices[0].color = color;

vertices[0].u = 0.0f;

vertices[0].v = 0.0f;

D3D_SetBlendMode(data, renderer->blendMode);

result = IDirect3DDevice9_SetTexture(data->device, 0, (IDirect3DBaseTexture9 *)0);

if (FAILED(result)) {

D3D_SetError("SetTexture()", result);

return -1;

}

result =

IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_POINTLIST, 1,

vertices, sizeof(*vertices));

if (FAILED(result)) {

D3D_SetError("DrawPrimitiveUP()", result);

return -1;

}

return 0;

}

static int

D3D_RenderLine(SDL_Renderer * renderer, int x1, int y1, int x2, int y2)

{

D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;

DWORD color;

Vertex vertices[2];

HRESULT result;

if (data->beginScene) {

IDirect3DDevice9_BeginScene(data->device);

data->beginScene = SDL_FALSE;

}

color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b);

vertices[0].x = (float) x1 - 0.5f;

vertices[0].y = (float) y1 - 0.5f;

vertices[0].z = 0.0f;

vertices[0].rhw = 1.0f;

vertices[0].color = color;

vertices[0].u = 0.0f;

vertices[0].v = 0.0f;

vertices[1].x = (float) x2 - 0.5f;

vertices[1].y = (float) y2 - 0.5f;

vertices[1].z = 0.0f;

vertices[1].rhw = 1.0f;

vertices[1].color = color;

vertices[1].u = 0.0f;

vertices[1].v = 0.0f;

D3D_SetBlendMode(data, renderer->blendMode);

result = IDirect3DDevice9_SetTexture(data->device, 0, (IDirect3DBaseTexture9 *)0);

if (FAILED(result)) {

D3D_SetError("SetTexture()", result);

return -1;

}

result =

IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_LINELIST, 1,

vertices, sizeof(*vertices));

if (FAILED(result)) {

D3D_SetError("DrawPrimitiveUP()", result);

return -1;

}

return 0;

}

static int

D3D_RenderFill(SDL_Renderer * renderer, const SDL_Rect * rect)

{

D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;

float minx, miny, maxx, maxy;

DWORD color;

Vertex vertices[4];

HRESULT result;

if (data->beginScene) {

IDirect3DDevice9_BeginScene(data->device);

data->beginScene = SDL_FALSE;

}

minx = (float) rect->x - 0.5f;

miny = (float) rect->y - 0.5f;

maxx = (float) rect->x + rect->w - 0.5f;

maxy = (float) rect->y + rect->h - 0.5f;

color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b);

vertices[0].x = minx;

vertices[0].y = miny;

vertices[0].z = 0.0f;

vertices[0].rhw = 1.0f;

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].rhw = 1.0f;

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].rhw = 1.0f;

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].rhw = 1.0f;

vertices[3].color = color;

vertices[3].u = 0.0f;

vertices[3].v = 0.0f;

D3D_SetBlendMode(data, renderer->blendMode);

result = IDirect3DDevice9_SetTexture(data->device, 0, (IDirect3DBaseTexture9 *)0);

if (FAILED(result)) {

D3D_SetError("SetTexture()", result);

return -1;

}

result =

IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_TRIANGLEFAN, 2,

vertices, sizeof(*vertices));

if (FAILED(result)) {

D3D_SetError("DrawPrimitiveUP()", result);

return -1;

}

return 0;

}

static int

D3D_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,

const SDL_Rect * srcrect, const SDL_Rect * dstrect)

{

D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;

D3D_TextureData *texturedata = (D3D_TextureData *) texture->driverdata;

float minx, miny, maxx, maxy;

float minu, maxu, minv, maxv;

DWORD color;

Vertex vertices[4];

HRESULT result;

if (data->beginScene) {

IDirect3DDevice9_BeginScene(data->device);

data->beginScene = SDL_FALSE;

}

minx = (float) dstrect->x - 0.5f;

miny = (float) dstrect->y - 0.5f;

maxx = (float) dstrect->x + dstrect->w - 0.5f;

maxy = (float) 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].rhw = 1.0f;

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].rhw = 1.0f;

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].rhw = 1.0f;

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].rhw = 1.0f;

vertices[3].color = color;

vertices[3].u = minu;

vertices[3].v = maxv;

D3D_SetBlendMode(data, texture->blendMode);

switch (texture->scaleMode) {

case SDL_TEXTURESCALEMODE_NONE:

case SDL_TEXTURESCALEMODE_FAST:

IDirect3DDevice9_SetSamplerState(data->device, 0, D3DSAMP_MINFILTER,

D3DTEXF_POINT);

IDirect3DDevice9_SetSamplerState(data->device, 0, D3DSAMP_MAGFILTER,

D3DTEXF_POINT);

break;

case SDL_TEXTURESCALEMODE_SLOW:

IDirect3DDevice9_SetSamplerState(data->device, 0, D3DSAMP_MINFILTER,

D3DTEXF_LINEAR);

IDirect3DDevice9_SetSamplerState(data->device, 0, D3DSAMP_MAGFILTER,

D3DTEXF_LINEAR);

break;

case SDL_TEXTURESCALEMODE_BEST:

IDirect3DDevice9_SetSamplerState(data->device, 0, D3DSAMP_MINFILTER,

D3DTEXF_GAUSSIANQUAD);

IDirect3DDevice9_SetSamplerState(data->device, 0, D3DSAMP_MAGFILTER,

D3DTEXF_GAUSSIANQUAD);

break;

}

result =

IDirect3DDevice9_SetTexture(data->device, 0, (IDirect3DBaseTexture9 *)

texturedata->texture);

if (FAILED(result)) {

D3D_SetError("SetTexture()", result);

return -1;

}

result =