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SDL_DirectFB_render.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2009 Sam Lantinga
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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
SDL1.3 implementation by couriersud@arcor.de
*/
#include "SDL_config.h"
#include "SDL_DirectFB_video.h"
#include "SDL_DirectFB_render.h"
#include "../SDL_rect_c.h"
#include "../SDL_yuv_sw_c.h"
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/* the following is not yet tested ... */
#define USE_DISPLAY_PALETTE (0)
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/* GDI renderer implementation */
static SDL_Renderer *DirectFB_CreateRenderer(SDL_Window * window,
Uint32 flags);
static int DirectFB_DisplayModeChanged(SDL_Renderer * renderer);
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static int DirectFB_ActivateRenderer(SDL_Renderer * renderer);
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static int DirectFB_CreateTexture(SDL_Renderer * renderer,
SDL_Texture * texture);
static int DirectFB_QueryTexturePixels(SDL_Renderer * renderer,
SDL_Texture * texture, void **pixels,
int *pitch);
static int DirectFB_SetTexturePalette(SDL_Renderer * renderer,
SDL_Texture * texture,
const SDL_Color * colors,
int firstcolor, int ncolors);
static int DirectFB_GetTexturePalette(SDL_Renderer * renderer,
SDL_Texture * texture,
SDL_Color * colors, int firstcolor,
int ncolors);
static int DirectFB_SetTextureAlphaMod(SDL_Renderer * renderer,
SDL_Texture * texture);
static int DirectFB_SetTextureColorMod(SDL_Renderer * renderer,
SDL_Texture * texture);
static int DirectFB_SetTextureBlendMode(SDL_Renderer * renderer,
SDL_Texture * texture);
static int DirectFB_SetTextureScaleMode(SDL_Renderer * renderer,
SDL_Texture * texture);
static int DirectFB_UpdateTexture(SDL_Renderer * renderer,
SDL_Texture * texture,
const SDL_Rect * rect, const void *pixels,
int pitch);
static int DirectFB_LockTexture(SDL_Renderer * renderer,
SDL_Texture * texture, const SDL_Rect * rect,
int markDirty, void **pixels, int *pitch);
static void DirectFB_UnlockTexture(SDL_Renderer * renderer,
SDL_Texture * texture);
static void DirectFB_DirtyTexture(SDL_Renderer * renderer,
SDL_Texture * texture, int numrects,
const SDL_Rect * rects);
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static int DirectFB_SetDrawColor(SDL_Renderer * renderer);
static int DirectFB_SetDrawBlendMode(SDL_Renderer * renderer);
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static int DirectFB_RenderPoint(SDL_Renderer * renderer, int x, int y);
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static int DirectFB_RenderLine(SDL_Renderer * renderer, int x1, int y1,
int x2, int y2);
static int DirectFB_RenderFill(SDL_Renderer * renderer,
const SDL_Rect * rect);
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static int DirectFB_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * srcrect,
const SDL_Rect * dstrect);
static void DirectFB_RenderPresent(SDL_Renderer * renderer);
static void DirectFB_DestroyTexture(SDL_Renderer * renderer,
SDL_Texture * texture);
static void DirectFB_DestroyRenderer(SDL_Renderer * renderer);
SDL_RenderDriver DirectFB_RenderDriver = {
DirectFB_CreateRenderer,
{
"directfb",
(SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTCOPY |
SDL_RENDERER_PRESENTFLIP2 | SDL_RENDERER_PRESENTFLIP3 |
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SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_PRESENTDISCARD |
SDL_RENDERER_ACCELERATED),
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(SDL_TEXTUREMODULATE_NONE | SDL_TEXTUREMODULATE_COLOR |
SDL_TEXTUREMODULATE_ALPHA),
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(SDL_BLENDMODE_NONE | SDL_BLENDMODE_MASK |
SDL_BLENDMODE_BLEND | SDL_BLENDMODE_ADD | SDL_BLENDMODE_MOD),
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(SDL_TEXTURESCALEMODE_NONE | SDL_TEXTURESCALEMODE_FAST |
SDL_TEXTURESCALEMODE_SLOW | SDL_TEXTURESCALEMODE_BEST),
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{
SDL_PIXELFORMAT_INDEX4LSB,
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SDL_PIXELFORMAT_INDEX8,
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SDL_PIXELFORMAT_RGB332,
SDL_PIXELFORMAT_RGB555,
SDL_PIXELFORMAT_RGB565,
SDL_PIXELFORMAT_RGB888,
SDL_PIXELFORMAT_ARGB8888,
SDL_PIXELFORMAT_ARGB4444,
SDL_PIXELFORMAT_ARGB1555,
SDL_PIXELFORMAT_RGB24,
SDL_PIXELFORMAT_YV12,
SDL_PIXELFORMAT_IYUV,
SDL_PIXELFORMAT_YUY2,
SDL_PIXELFORMAT_UYVY},
0,
0}
};
typedef struct
{
IDirectFBSurface *surface;
DFBSurfaceFlipFlags flipflags;
int isyuvdirect;
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int size_changed;
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int lastBlendMode;
DFBSurfaceBlittingFlags blitFlags;
DFBSurfaceDrawingFlags drawFlags;
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} DirectFB_RenderData;
typedef struct
{
IDirectFBSurface *surface;
Uint32 format;
void *pixels;
int pitch;
IDirectFBPalette *palette;
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SDL_VideoDisplay *display;
SDL_DirtyRectList dirty;
#if (DIRECTFB_MAJOR_VERSION == 1) && (DIRECTFB_MINOR_VERSION >= 2)
DFBSurfaceRenderOptions render_options;
#endif
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} DirectFB_TextureData;
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static __inline__ void
SDLtoDFBRect(const SDL_Rect * sr, DFBRectangle * dr)
{
dr->x = sr->x;
dr->y = sr->y;
dr->h = sr->h;
dr->w = sr->w;
}
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static int
TextureHasAlpha(DirectFB_TextureData * data)
{
/* Drawing primitive ? */
if (!data)
return 0;
switch (data->format) {
case SDL_PIXELFORMAT_INDEX4LSB:
case SDL_PIXELFORMAT_ARGB4444:
case SDL_PIXELFORMAT_ARGB1555:
case SDL_PIXELFORMAT_ARGB8888:
case SDL_PIXELFORMAT_RGBA8888:
case SDL_PIXELFORMAT_ABGR8888:
case SDL_PIXELFORMAT_BGRA8888:
case SDL_PIXELFORMAT_ARGB2101010:
return 1;
default:
return 0;
}
}
static void
SetBlendMode(DirectFB_RenderData * data, int blendMode,
DirectFB_TextureData * source)
{
//FIXME: check for format change
if (1 || data->lastBlendMode != blendMode) {
switch (blendMode) {
case SDL_BLENDMODE_NONE:
/**< No blending */
data->blitFlags = DSBLIT_NOFX;
data->drawFlags = DSDRAW_NOFX;
data->surface->SetSrcBlendFunction(data->surface, DSBF_ONE);
data->surface->SetDstBlendFunction(data->surface, DSBF_ZERO);
break;
case SDL_BLENDMODE_MASK:
data->blitFlags = DSBLIT_BLEND_ALPHACHANNEL;
data->drawFlags = DSDRAW_BLEND;
data->surface->SetSrcBlendFunction(data->surface, DSBF_SRCALPHA);
data->surface->SetDstBlendFunction(data->surface,
DSBF_INVSRCALPHA);
break;
case SDL_BLENDMODE_BLEND:
data->blitFlags = DSBLIT_BLEND_ALPHACHANNEL;
data->drawFlags = DSDRAW_BLEND;
data->surface->SetSrcBlendFunction(data->surface, DSBF_SRCALPHA);
data->surface->SetDstBlendFunction(data->surface,
DSBF_INVSRCALPHA);
break;
case SDL_BLENDMODE_ADD:
data->blitFlags = DSBLIT_BLEND_ALPHACHANNEL;
data->drawFlags = DSDRAW_BLEND;
//FIXME: SRCALPHA kills performance on radeon ...
//Eventually use a premultiplied texture
if (0 && TextureHasAlpha(source))
data->surface->SetSrcBlendFunction(data->surface,
DSBF_SRCALPHA);
else
data->surface->SetSrcBlendFunction(data->surface, DSBF_ONE);
data->surface->SetDstBlendFunction(data->surface, DSBF_ONE);
break;
case SDL_BLENDMODE_MOD:
data->blitFlags = DSBLIT_BLEND_ALPHACHANNEL;
data->drawFlags = DSDRAW_BLEND;
data->surface->SetSrcBlendFunction(data->surface, DSBF_DESTCOLOR);
data->surface->SetDstBlendFunction(data->surface, DSBF_ZERO);
break;
}
data->lastBlendMode = blendMode;
}
}
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void
DirectFB_AddRenderDriver(_THIS)
{
int i;
for (i = 0; i < _this->num_displays; i++)
SDL_AddRenderDriver(i, &DirectFB_RenderDriver);
}
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static int
DisplayPaletteChanged(void *userdata, SDL_Palette * palette)
{
#if USE_DISPLAY_PALETTE
DirectFB_RenderData *data = (DirectFB_RenderData *) userdata;
IDirectFBPalette *surfpal;
int ret;
int i;
int ncolors;
DFBColor entries[256];
SDL_DFB_CHECKERR(data->surface->GetPalette(data->surface, &surfpal));
/* FIXME: number of colors */
ncolors = (palette->ncolors < 256 ? palette->ncolors : 256);
for (i = 0; i < ncolors; ++i) {
entries[i].r = palette->colors[i].r;
entries[i].g = palette->colors[i].g;
entries[i].b = palette->colors[i].b;
entries[i].a = palette->colors[i].unused;
}
SDL_DFB_CHECKERR(surfpal->SetEntries(surfpal, entries, ncolors, 0));
return 0;
error:
#endif
return -1;
}
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SDL_Renderer *
DirectFB_CreateRenderer(SDL_Window * window, Uint32 flags)
{
SDL_DFB_WINDOWDATA(window);
SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
SDL_Renderer *renderer = NULL;
DirectFB_RenderData *data = NULL;
DFBResult ret;
DFBSurfaceCapabilities scaps;
char *p;
SDL_DFB_CALLOC(renderer, 1, sizeof(*renderer));
SDL_DFB_CALLOC(data, 1, sizeof(*data));
renderer->DisplayModeChanged = DirectFB_DisplayModeChanged;
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renderer->ActivateRenderer = DirectFB_ActivateRenderer;
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renderer->CreateTexture = DirectFB_CreateTexture;
renderer->QueryTexturePixels = DirectFB_QueryTexturePixels;
renderer->SetTexturePalette = DirectFB_SetTexturePalette;
renderer->GetTexturePalette = DirectFB_GetTexturePalette;
renderer->SetTextureAlphaMod = DirectFB_SetTextureAlphaMod;
renderer->SetTextureColorMod = DirectFB_SetTextureColorMod;
renderer->SetTextureBlendMode = DirectFB_SetTextureBlendMode;
renderer->SetTextureScaleMode = DirectFB_SetTextureScaleMode;
renderer->UpdateTexture = DirectFB_UpdateTexture;
renderer->LockTexture = DirectFB_LockTexture;
renderer->UnlockTexture = DirectFB_UnlockTexture;
renderer->DirtyTexture = DirectFB_DirtyTexture;
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renderer->SetDrawColor = DirectFB_SetDrawColor;
renderer->SetDrawBlendMode = DirectFB_SetDrawBlendMode;
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renderer->RenderPoint = DirectFB_RenderPoint;
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renderer->RenderLine = DirectFB_RenderLine;
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renderer->RenderFill = DirectFB_RenderFill;
renderer->RenderCopy = DirectFB_RenderCopy;
renderer->RenderPresent = DirectFB_RenderPresent;
renderer->DestroyTexture = DirectFB_DestroyTexture;
renderer->DestroyRenderer = DirectFB_DestroyRenderer;
renderer->info = DirectFB_RenderDriver.info;
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renderer->window = window->id; /* SDL window id */
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renderer->driverdata = data;
renderer->info.flags =
SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTDISCARD;
data->surface = windata->surface;
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data->surface->AddRef(data->surface);
data->flipflags = DSFLIP_PIPELINE | DSFLIP_BLIT;
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if (flags & SDL_RENDERER_PRESENTVSYNC) {
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data->flipflags |= DSFLIP_WAITFORSYNC;
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renderer->info.flags |= SDL_RENDERER_PRESENTVSYNC;
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} else
data->flipflags |= DSFLIP_ONSYNC;
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SDL_DFB_CHECKERR(data->surface->GetCapabilities(data->surface, &scaps));
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if (scaps & DSCAPS_DOUBLE)
renderer->info.flags |= SDL_RENDERER_PRESENTFLIP2;
else if (scaps & DSCAPS_TRIPLE)
renderer->info.flags |= SDL_RENDERER_PRESENTFLIP3;
else
renderer->info.flags |= SDL_RENDERER_SINGLEBUFFER;
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data->isyuvdirect = 0; /* default is off! */
p = getenv(DFBENV_USE_YUV_DIRECT);
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if (p)
data->isyuvdirect = atoi(p);
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/* Set up a palette watch on the display palette */
if (display->palette) {
SDL_AddPaletteWatch(display->palette, DisplayPaletteChanged, data);
}
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return renderer;
error:
SDL_DFB_FREE(renderer);
SDL_DFB_FREE(data);
return NULL;
}
static DFBSurfacePixelFormat
SDLToDFBPixelFormat(Uint32 format)
{
switch (format) {
case SDL_PIXELFORMAT_INDEX4LSB:
return DSPF_ALUT44;
case SDL_PIXELFORMAT_INDEX8:
return DSPF_LUT8;
case SDL_PIXELFORMAT_RGB332:
return DSPF_RGB332;
case SDL_PIXELFORMAT_RGB555:
return DSPF_ARGB1555;
case SDL_PIXELFORMAT_ARGB4444:
return DSPF_ARGB4444;
case SDL_PIXELFORMAT_ARGB1555:
return DSPF_ARGB1555;
case SDL_PIXELFORMAT_RGB565:
return DSPF_RGB16;
case SDL_PIXELFORMAT_RGB24:
return DSPF_RGB24;
case SDL_PIXELFORMAT_RGB888:
return DSPF_RGB32;
case SDL_PIXELFORMAT_ARGB8888:
return DSPF_ARGB;
case SDL_PIXELFORMAT_YV12:
return DSPF_YV12; /* Planar mode: Y + V + U (3 planes) */
case SDL_PIXELFORMAT_IYUV:
return DSPF_I420; /* Planar mode: Y + U + V (3 planes) */
case SDL_PIXELFORMAT_YUY2:
return DSPF_YUY2; /* Packed mode: Y0+U0+Y1+V0 (1 plane) */
case SDL_PIXELFORMAT_UYVY:
return DSPF_UYVY; /* Packed mode: U0+Y0+V0+Y1 (1 plane) */
case SDL_PIXELFORMAT_YVYU:
return DSPF_UNKNOWN; /* Packed mode: Y0+V0+Y1+U0 (1 plane) */
case SDL_PIXELFORMAT_INDEX1LSB:
return DSPF_UNKNOWN;
case SDL_PIXELFORMAT_INDEX1MSB:
return DSPF_UNKNOWN;
case SDL_PIXELFORMAT_INDEX4MSB:
return DSPF_UNKNOWN;
case SDL_PIXELFORMAT_RGB444:
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#if (DIRECTFB_MAJOR_VERSION == 1) && (DIRECTFB_MINOR_VERSION >= 2)
return DSPF_RGB444;
#else
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return DSPF_UNKNOWN;
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case SDL_PIXELFORMAT_BGR24:
return DSPF_UNKNOWN;
case SDL_PIXELFORMAT_BGR888:
return DSPF_UNKNOWN;
case SDL_PIXELFORMAT_RGBA8888:
return DSPF_UNKNOWN;
case SDL_PIXELFORMAT_ABGR8888:
return DSPF_UNKNOWN;
case SDL_PIXELFORMAT_BGRA8888:
return DSPF_UNKNOWN;
case SDL_PIXELFORMAT_ARGB2101010:
return DSPF_UNKNOWN;
default:
return DSPF_UNKNOWN;
}
}
static int
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DirectFB_ActivateRenderer(SDL_Renderer * renderer)
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{
SDL_DFB_RENDERERDATA(renderer);
SDL_Window *window = SDL_GetWindowFromID(renderer->window);
SDL_DFB_WINDOWDATA(window);
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if (renddata->size_changed) {
int cw, ch;
int ret;
SDL_DFB_CHECKERR(windata->surface->
GetSize(windata->surface, &cw, &ch));
if (cw != window->w || ch != window->h)
SDL_DFB_CHECKERR(windata->window->
ResizeSurface(windata->window, window->w,
window->h));
}
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return 0;
error:
return -1;
}
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static int
DirectFB_DisplayModeChanged(SDL_Renderer * renderer)
{
SDL_DFB_RENDERERDATA(renderer);
renddata->size_changed = SDL_TRUE;
return 0;
}
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static int
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DirectFB_AcquireVidLayer(SDL_Renderer * renderer, SDL_Texture * texture)
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{
SDL_DFB_RENDERERDATA(renderer);
SDL_Window *window = SDL_GetWindowFromID(renderer->window);
SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
SDL_DFB_DEVICEDATA(display->device);
DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata;
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DirectFB_TextureData *data = texture->driverdata;
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DFBDisplayLayerConfig layconf;
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int ret;
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if (renddata->isyuvdirect && (dispdata->vidID >= 0)
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&& (!dispdata->vidIDinuse)
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&& SDL_ISPIXELFORMAT_FOURCC(data->format)) {
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layconf.flags =
DLCONF_WIDTH | DLCONF_HEIGHT | DLCONF_PIXELFORMAT |
DLCONF_SURFACE_CAPS;
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layconf.width = texture->w;
layconf.height = texture->h;
layconf.pixelformat = SDLToDFBPixelFormat(data->format);
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layconf.surface_caps = DSCAPS_VIDEOONLY | DSCAPS_DOUBLE;
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SDL_DFB_CHECKERR(devdata->dfb->
GetDisplayLayer(devdata->dfb, dispdata->vidID,
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&dispdata->vidlayer));
SDL_DFB_CHECKERR(dispdata->vidlayer->
SetCooperativeLevel(dispdata->vidlayer,
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DLSCL_EXCLUSIVE));
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if (devdata->use_yuv_underlays) {
ret = dispdata->vidlayer->SetLevel(dispdata->vidlayer, -1);
if (ret != DFB_OK)
SDL_DFB_DEBUG("Underlay Setlevel not supported\n");
}
SDL_DFB_CHECKERR(dispdata->vidlayer->
SetConfiguration(dispdata->vidlayer, &layconf));
SDL_DFB_CHECKERR(dispdata->vidlayer->
GetSurface(dispdata->vidlayer, &data->surface));
dispdata->vidIDinuse = 1;
data->display = display;
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return 0;
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return 1;
error:
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if (dispdata->vidlayer) {
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SDL_DFB_RELEASE(data->surface);
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SDL_DFB_CHECKERR(dispdata->vidlayer->
SetCooperativeLevel(dispdata->vidlayer,
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DLSCL_ADMINISTRATIVE));
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SDL_DFB_RELEASE(dispdata->vidlayer);
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}
return 1;
}
static int
DirectFB_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
{
SDL_Window *window = SDL_GetWindowFromID(renderer->window);
SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
SDL_DFB_DEVICEDATA(display->device);
DirectFB_TextureData *data;
DFBResult ret;
DFBSurfaceDescription dsc;
SDL_DFB_CALLOC(data, 1, sizeof(*data));
texture->driverdata = data;
data->format = texture->format;
data->pitch = (texture->w * SDL_BYTESPERPIXEL(data->format));
if (DirectFB_AcquireVidLayer(renderer, texture) != 0) {
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/* fill surface description */
dsc.flags =
DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT | DSDESC_CAPS;
dsc.width = texture->w;
dsc.height = texture->h;
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/* <1.2 Never use DSCAPS_VIDEOONLY here. It kills performance
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* No DSCAPS_SYSTEMONLY either - let dfb decide
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* 1.2: DSCAPS_SYSTEMONLY boosts performance by factor ~8
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* Depends on other settings as well. Let dfb decide.
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dsc.caps = DSCAPS_PREMULTIPLIED;
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if (texture->access == SDL_TEXTUREACCESS_STREAMING)
dsc.caps |= DSCAPS_SYSTEMONLY;
else
dsc.caps |= DSCAPS_VIDEOONLY;
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/* find the right pixelformat */
dsc.pixelformat = SDLToDFBPixelFormat(data->format);
if (dsc.pixelformat == DSPF_UNKNOWN) {
SDL_SetError("Unknown pixel format %d\n", data->format);
goto error;
}
data->pixels = NULL;
/* Create the surface */
SDL_DFB_CHECKERR(devdata->dfb->
CreateSurface(devdata->dfb, &dsc, &data->surface));
if (SDL_ISPIXELFORMAT_INDEXED(data->format)
&& !SDL_ISPIXELFORMAT_FOURCC(data->format)) {
SDL_DFB_CHECKERR(data->surface->
GetPalette(data->surface, &data->palette));
}
}
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#if (DIRECTFB_MAJOR_VERSION == 1) && (DIRECTFB_MINOR_VERSION >= 2)
data->render_options = DSRO_NONE;
#endif
if (texture->access == SDL_TEXTUREACCESS_STREAMING) {
data->pitch = texture->w * SDL_BYTESPERPIXEL(texture->format);
SDL_DFB_CALLOC(data->pixels, 1, texture->h * data->pitch);
}
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return 0;
error:
SDL_DFB_RELEASE(data->palette);
SDL_DFB_RELEASE(data->surface);
SDL_DFB_FREE(texture->driverdata);
return -1;
}
static int
DirectFB_QueryTexturePixels(SDL_Renderer * renderer, SDL_Texture * texture,
void **pixels, int *pitch)
{
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DirectFB_TextureData *texturedata =
(DirectFB_TextureData *) texture->driverdata;
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if (texturedata->display) {
return -1;
} else {
*pixels = texturedata->pixels;
*pitch = texturedata->pitch;
}
return 0;
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}
static int
DirectFB_SetTexturePalette(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Color * colors, int firstcolor,
int ncolors)
{
DirectFB_TextureData *data = (DirectFB_TextureData *) texture->driverdata;
DFBResult ret;
if (SDL_ISPIXELFORMAT_INDEXED(data->format)
&& !SDL_ISPIXELFORMAT_FOURCC(data->format)) {
DFBColor entries[256];
int i;
for (i = 0; i < ncolors; ++i) {
entries[i].r = colors[i].r;
entries[i].g = colors[i].g;
entries[i].b = colors[i].b;
entries[i].a = 0xFF;
}
SDL_DFB_CHECKERR(data->palette->
SetEntries(data->palette, entries, ncolors,
firstcolor));
return 0;
} else {
SDL_SetError("YUV textures don't have a palette");
return -1;
}
error:
return -1;
}
static int
DirectFB_GetTexturePalette(SDL_Renderer * renderer, SDL_Texture * texture,
SDL_Color * colors, int firstcolor, int ncolors)
{
DirectFB_TextureData *data = (DirectFB_TextureData *) texture->driverdata;
DFBResult ret;
if (SDL_ISPIXELFORMAT_INDEXED(data->format)
&& !SDL_ISPIXELFORMAT_FOURCC(data->format)) {
DFBColor entries[256];
int i;
SDL_DFB_CHECKERR(data->palette->
GetEntries(data->palette, entries, ncolors,
firstcolor));
for (i = 0; i < ncolors; ++i) {
colors[i].r = entries[i].r;
colors[i].g = entries[i].g;
colors[i].b = entries[i].b;
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colors->unused = SDL_ALPHA_OPAQUE;
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}
return 0;
} else {
SDL_SetError("YUV textures don't have a palette");
return -1;
}
error:
return -1;
}
static int
DirectFB_SetTextureAlphaMod(SDL_Renderer * renderer, SDL_Texture * texture)
{
return 0;
}
static int
DirectFB_SetTextureColorMod(SDL_Renderer * renderer, SDL_Texture * texture)
{
return 0;
}
static int
DirectFB_SetTextureBlendMode(SDL_Renderer * renderer, SDL_Texture * texture)
{
switch (texture->blendMode) {
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case SDL_BLENDMODE_NONE:
case SDL_BLENDMODE_MASK:
case SDL_BLENDMODE_BLEND:
case SDL_BLENDMODE_ADD:
case SDL_BLENDMODE_MOD:
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return 0;
default:
SDL_Unsupported();
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texture->blendMode = SDL_BLENDMODE_NONE;
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return -1;
}
}
static int
DirectFB_SetTextureScaleMode(SDL_Renderer * renderer, SDL_Texture * texture)
{
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#if (DIRECTFB_MAJOR_VERSION == 1) && (DIRECTFB_MINOR_VERSION >= 2)
DirectFB_TextureData *data = (DirectFB_TextureData *) texture->driverdata;
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switch (texture->scaleMode) {
case SDL_TEXTURESCALEMODE_NONE:
case SDL_TEXTURESCALEMODE_FAST:
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data->render_options = DSRO_NONE;
break;
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case SDL_TEXTURESCALEMODE_SLOW:
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data->render_options = DSRO_SMOOTH_UPSCALE | DSRO_SMOOTH_DOWNSCALE;
break;
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case SDL_TEXTURESCALEMODE_BEST:
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data->render_options =
DSRO_SMOOTH_UPSCALE | DSRO_SMOOTH_DOWNSCALE | DSRO_ANTIALIAS;
break;
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default:
SDL_Unsupported();
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data->render_options = DSRO_NONE;
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texture->scaleMode = SDL_TEXTURESCALEMODE_NONE;
return -1;
}
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return 0;
}
static int
DirectFB_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, const void *pixels, int pitch)
{
DirectFB_TextureData *data = (DirectFB_TextureData *) texture->driverdata;
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DFBResult ret;
Uint8 *dpixels;
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int dpitch;
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Uint8 *src, *dst;
int row;
size_t length;
SDL_DFB_CHECKERR(data->surface->Lock(data->surface,
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DSLF_WRITE | DSLF_READ,
((void **) &dpixels), &dpitch));
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src = (Uint8 *) pixels;
dst =
(Uint8 *) dpixels + rect->y * dpitch +
rect->x * SDL_BYTESPERPIXEL(texture->format);
length = rect->w * SDL_BYTESPERPIXEL(texture->format);
for (row = 0; row < rect->h; ++row) {
SDL_memcpy(dst, src, length);
src += pitch;
dst += dpitch;
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SDL_DFB_CHECKERR(data->surface->Unlock(data->surface));
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return 0;
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error:
return 1;
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}
static int
DirectFB_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, int markDirty, void **pixels,
int *pitch)
{
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DirectFB_TextureData *texturedata =
(DirectFB_TextureData *) texture->driverdata;
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DFBResult ret;
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if (markDirty) {
SDL_AddDirtyRect(&texturedata->dirty, rect);
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if (texturedata->display) {
void *fdata;
int fpitch;
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SDL_DFB_CHECKERR(texturedata->surface->Lock(texturedata->surface,
DSLF_WRITE | DSLF_READ,
&fdata, &fpitch));
*pitch = fpitch;
*pixels = fdata;
} else {
*pixels =
(void *) ((Uint8 *) texturedata->pixels +
rect->y * texturedata->pitch +
rect->x * SDL_BYTESPERPIXEL(texture->format));
*pitch = texturedata->pitch;
}
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return 0;
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error:
return -1;
}
static void
DirectFB_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture)
{
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DirectFB_TextureData *texturedata =
(DirectFB_TextureData *) texture->driverdata;
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if (texturedata->display) {
texturedata->surface->Unlock(texturedata->surface);
texturedata->pixels = NULL;
}
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}
static void
DirectFB_DirtyTexture(SDL_Renderer * renderer, SDL_Texture * texture,
int numrects, const SDL_Rect * rects)
{
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DirectFB_TextureData *data = (DirectFB_TextureData *) texture->driverdata;
int i;
for (i = 0; i < numrects; ++i) {
SDL_AddDirtyRect(&data->dirty, &rects[i]);
}
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}
static int
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DirectFB_SetDrawColor(SDL_Renderer * renderer)
{
return 0;
}
static int
DirectFB_SetDrawBlendMode(SDL_Renderer * renderer)
{
return 0;
}
static int
PrepareDraw(SDL_Renderer * renderer)
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{
DirectFB_RenderData *data = (DirectFB_RenderData *) renderer->driverdata;
DFBResult ret;
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Uint8 r, g, b, a;
r = renderer->r;
g = renderer->g;
b = renderer->b;
a = renderer->a;
SetBlendMode(data, renderer->blendMode, NULL);
SDL_DFB_CHECKERR(data->surface->
SetDrawingFlags(data->surface, data->drawFlags));
switch (renderer->blendMode) {
case SDL_BLENDMODE_NONE:
case SDL_BLENDMODE_MASK:
case SDL_BLENDMODE_BLEND:
break;
case SDL_BLENDMODE_ADD:
case SDL_BLENDMODE_MOD:
r = ((int) r * (int) a) / 255;
g = ((int) g * (int) a) / 255;
b = ((int) b * (int) a) / 255;
a = 255;
break;
}
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SDL_DFB_CHECKERR(data->surface->SetColor(data->surface, r, g, b, a));
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return 0;
error:
return -1;
}
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static int
DirectFB_RenderPoint(SDL_Renderer * renderer, int x, int y)
{
DirectFB_RenderData *data = (DirectFB_RenderData *) renderer->driverdata;
DFBResult ret;
PrepareDraw(renderer);
SDL_DFB_CHECKERR(data->surface->DrawPoint(data->surface, x, y));
return 0;
error:
return -1;
}
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static int
DirectFB_RenderLine(SDL_Renderer * renderer, int x1, int y1, int x2, int y2)
{
DirectFB_RenderData *data = (DirectFB_RenderData *) renderer->driverdata;
DFBResult ret;
PrepareDraw(renderer);
SDL_DFB_CHECKERR(data->surface->DrawLine(data->surface, x1, y1, x2, y2));
return 0;
error:
return -1;
}
static int
DirectFB_RenderFill(SDL_Renderer * renderer, const SDL_Rect * rect)
{
DirectFB_RenderData *data = (DirectFB_RenderData *) renderer->driverdata;
DFBResult ret;
PrepareDraw(renderer);
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SDL_DFB_CHECKERR(data->surface->
FillRectangle(data->surface, rect->x, rect->y, rect->w,
rect->h));
return 0;
error:
return -1;
}
static int
DirectFB_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * srcrect, const SDL_Rect * dstrect)
{
DirectFB_RenderData *data = (DirectFB_RenderData *) renderer->driverdata;
DirectFB_TextureData *texturedata =
(DirectFB_TextureData *) texture->driverdata;
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Uint8 alpha = 0xFF;
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DFBResult ret;
900
if (texturedata->display) {
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int px, py;
SDL_Window *window = SDL_GetWindowFromID(renderer->window);
SDL_DFB_WINDOWDATA(window);
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SDL_VideoDisplay *display = texturedata->display;
DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata;
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SDL_DFB_CHECKERR(dispdata->vidlayer->
SetSourceRectangle(dispdata->vidlayer, srcrect->x,
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srcrect->y, srcrect->w,
srcrect->h));
windata->window->GetPosition(windata->window, &px, &py);
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SDL_DFB_CHECKERR(dispdata->vidlayer->
SetScreenRectangle(dispdata->vidlayer,
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px + dstrect->x, py + dstrect->y,
dstrect->w, dstrect->h));
} else {
DFBRectangle sr, dr;
DFBSurfaceBlittingFlags flags = 0;
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if (texturedata->dirty.list) {
SDL_DirtyRect *dirty;
void *pixels;
int bpp = SDL_BYTESPERPIXEL(texture->format);
int pitch = texturedata->pitch;
for (dirty = texturedata->dirty.list; dirty; dirty = dirty->next) {
SDL_Rect *rect = &dirty->rect;
pixels =
(void *) ((Uint8 *) texturedata->pixels +
rect->y * pitch + rect->x * bpp);
DirectFB_UpdateTexture(renderer, texture, rect,
texturedata->pixels,
texturedata->pitch);
}
SDL_ClearDirtyRects(&texturedata->dirty);
}
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SDLtoDFBRect(srcrect, &sr);
SDLtoDFBRect(dstrect, &dr);
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942
SDL_DFB_CHECKERR(data->surface->SetColor(data->surface, 0xFF,
0xFF, 0xFF, 0xFF));
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945
if (texture->
modMode & (SDL_TEXTUREMODULATE_COLOR | SDL_TEXTUREMODULATE_ALPHA))
{
946
if (texture->modMode & SDL_TEXTUREMODULATE_ALPHA) {
947
alpha = texture->a;
948
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SDL_DFB_CHECKERR(data->surface->SetColor(data->surface, 0xFF,
0xFF, 0xFF, alpha));
}
if (texture->modMode & SDL_TEXTUREMODULATE_COLOR) {
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955
SDL_DFB_CHECKERR(data->surface->
SetColor(data->surface, texture->r,
texture->g, texture->b, alpha));
956
flags |= DSBLIT_COLORIZE;
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961
962
if (alpha < 0xFF)
flags |= DSBLIT_SRC_PREMULTCOLOR;
} else
SDL_DFB_CHECKERR(data->surface->SetColor(data->surface, 0xFF,
0xFF, 0xFF, 0xFF));
964
SetBlendMode(data, texture->blendMode, texturedata);
966
SDL_DFB_CHECKERR(data->surface->
967
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970
971
972
973
974
SetBlittingFlags(data->surface,
data->blitFlags | flags));
#if (DIRECTFB_MAJOR_VERSION == 1) && (DIRECTFB_MINOR_VERSION >= 2)
SDL_DFB_CHECKERR(data->surface->SetRenderOptions(data->surface,
texturedata->
render_options));
#endif
976
977
if (srcrect->w == dstrect->w && srcrect->h == dstrect->h) {
SDL_DFB_CHECKERR(data->surface->
978
979
Blit(data->surface, texturedata->surface,
&sr, dr.x, dr.y));
980
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983
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1000
} else {
SDL_DFB_CHECKERR(data->surface->
StretchBlit(data->surface, texturedata->surface,
&sr, &dr));
}
}
return 0;
error:
return -1;
}
static void
DirectFB_RenderPresent(SDL_Renderer * renderer)
{
DirectFB_RenderData *data = (DirectFB_RenderData *) renderer->driverdata;
SDL_Window *window = SDL_GetWindowFromID(renderer->window);
DFBRectangle sr;
DFBResult ret;
sr.x = 0;