/
SDL_ph_image.c
1058 lines (903 loc) · 27.1 KB
/
SDL_ph_image.c
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2006 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 <Ph.h>
#include <photon/Pg.h>
#include "SDL_endian.h"
#include "SDL_video.h"
#include "../SDL_pixels_c.h"
#include "SDL_ph_video.h"
#include "SDL_ph_image_c.h"
#include "SDL_ph_modes_c.h"
#include "SDL_ph_gl.h"
int ph_SetupImage(_THIS, SDL_Surface *screen)
{
PgColor_t* palette=NULL;
int type=0;
int bpp;
bpp=screen->format->BitsPerPixel;
/* Determine image type */
switch(bpp)
{
case 8:{
type = Pg_IMAGE_PALETTE_BYTE;
}
break;
case 15:{
type = Pg_IMAGE_DIRECT_555;
}
break;
case 16:{
type = Pg_IMAGE_DIRECT_565;
}
break;
case 24:{
type = Pg_IMAGE_DIRECT_888;
}
break;
case 32:{
type = Pg_IMAGE_DIRECT_8888;
}
break;
default:{
SDL_SetError("ph_SetupImage(): unsupported bpp=%d !\n", bpp);
return -1;
}
break;
}
/* palette emulation code */
if ((bpp==8) && (desktoppal==SDLPH_PAL_EMULATE))
{
/* creating image palette */
palette=SDL_malloc(_Pg_MAX_PALETTE*sizeof(PgColor_t));
if (palette==NULL)
{
SDL_SetError("ph_SetupImage(): can't allocate memory for palette !\n");
return -1;
}
PgGetPalette(palette);
/* using shared memory for speed (set last param to 1) */
if ((SDL_Image = PhCreateImage(NULL, screen->w, screen->h, type, palette, _Pg_MAX_PALETTE, 1)) == NULL)
{
SDL_SetError("ph_SetupImage(): PhCreateImage() failed for bpp=8 !\n");
SDL_free(palette);
return -1;
}
}
else
{
/* using shared memory for speed (set last param to 1) */
if ((SDL_Image = PhCreateImage(NULL, screen->w, screen->h, type, NULL, 0, 1)) == NULL)
{
SDL_SetError("ph_SetupImage(): PhCreateImage() failed for bpp=%d !\n", bpp);
return -1;
}
}
screen->pixels = SDL_Image->image;
screen->pitch = SDL_Image->bpl;
this->UpdateRects = ph_NormalUpdate;
return 0;
}
int ph_SetupOCImage(_THIS, SDL_Surface *screen)
{
int type = 0;
int bpp;
OCImage.flags = screen->flags;
bpp=screen->format->BitsPerPixel;
/* Determine image type */
switch(bpp)
{
case 8: {
type = Pg_IMAGE_PALETTE_BYTE;
}
break;
case 15:{
type = Pg_IMAGE_DIRECT_555;
}
break;
case 16:{
type = Pg_IMAGE_DIRECT_565;
}
break;
case 24:{
type = Pg_IMAGE_DIRECT_888;
}
break;
case 32:{
type = Pg_IMAGE_DIRECT_8888;
}
break;
default:{
SDL_SetError("ph_SetupOCImage(): unsupported bpp=%d !\n", bpp);
return -1;
}
break;
}
/* Currently offscreen contexts with the same bit depth as display bpp only can be created */
OCImage.offscreen_context = PdCreateOffscreenContext(0, screen->w, screen->h, Pg_OSC_MEM_PAGE_ALIGN);
if (OCImage.offscreen_context == NULL)
{
SDL_SetError("ph_SetupOCImage(): PdCreateOffscreenContext() function failed !\n");
return -1;
}
screen->pitch = OCImage.offscreen_context->pitch;
OCImage.dc_ptr = (unsigned char *)PdGetOffscreenContextPtr(OCImage.offscreen_context);
if (OCImage.dc_ptr == NULL)
{
SDL_SetError("ph_SetupOCImage(): PdGetOffscreenContextPtr function failed !\n");
PhDCRelease(OCImage.offscreen_context);
return -1;
}
OCImage.FrameData0 = OCImage.dc_ptr;
OCImage.CurrentFrameData = OCImage.FrameData0;
OCImage.current = 0;
PhDCSetCurrent(OCImage.offscreen_context);
screen->pixels = OCImage.CurrentFrameData;
this->UpdateRects = ph_OCUpdate;
return 0;
}
int ph_SetupFullScreenImage(_THIS, SDL_Surface* screen)
{
OCImage.flags = screen->flags;
/* Begin direct and fullscreen mode */
if (!ph_EnterFullScreen(this, screen, PH_ENTER_DIRECTMODE))
{
return -1;
}
/* store palette for fullscreen */
if ((screen->format->BitsPerPixel==8) && (desktopbpp!=8))
{
PgGetPalette(savedpal);
PgGetPalette(syspalph);
}
OCImage.offscreen_context = PdCreateOffscreenContext(0, 0, 0, Pg_OSC_MAIN_DISPLAY | Pg_OSC_MEM_PAGE_ALIGN | Pg_OSC_CRTC_SAFE);
if (OCImage.offscreen_context == NULL)
{
SDL_SetError("ph_SetupFullScreenImage(): PdCreateOffscreenContext() function failed !\n");
return -1;
}
if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF)
{
OCImage.offscreen_backcontext = PdDupOffscreenContext(OCImage.offscreen_context, Pg_OSC_MEM_PAGE_ALIGN | Pg_OSC_CRTC_SAFE);
if (OCImage.offscreen_backcontext == NULL)
{
SDL_SetError("ph_SetupFullScreenImage(): PdCreateOffscreenContext(back) function failed !\n");
return -1;
}
}
OCImage.FrameData0 = (unsigned char *)PdGetOffscreenContextPtr(OCImage.offscreen_context);
if (OCImage.FrameData0 == NULL)
{
SDL_SetError("ph_SetupFullScreenImage(): PdGetOffscreenContextPtr() function failed !\n");
ph_DestroyImage(this, screen);
return -1;
}
if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF)
{
OCImage.FrameData1 = (unsigned char *)PdGetOffscreenContextPtr(OCImage.offscreen_backcontext);
if (OCImage.FrameData1 == NULL)
{
SDL_SetError("ph_SetupFullScreenImage(back): PdGetOffscreenContextPtr() function failed !\n");
ph_DestroyImage(this, screen);
return -1;
}
}
/* wait for the hardware */
PgFlush();
PgWaitHWIdle();
if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF)
{
OCImage.current = 0;
PhDCSetCurrent(OCImage.offscreen_context);
screen->pitch = OCImage.offscreen_context->pitch;
screen->pixels = OCImage.FrameData0;
/* emulate 640x400 videomode */
if (videomode_emulatemode==1)
{
int i;
for (i=0; i<40; i++)
{
SDL_memset(screen->pixels+screen->pitch*i, 0x00, screen->pitch);
}
for (i=440; i<480; i++)
{
SDL_memset(screen->pixels+screen->pitch*i, 0x00, screen->pitch);
}
screen->pixels+=screen->pitch*40;
}
PgSwapDisplay(OCImage.offscreen_backcontext, 0);
}
else
{
OCImage.current = 0;
PhDCSetCurrent(OCImage.offscreen_context);
screen->pitch = OCImage.offscreen_context->pitch;
screen->pixels = OCImage.FrameData0;
/* emulate 640x400 videomode */
if (videomode_emulatemode==1)
{
int i;
for (i=0; i<40; i++)
{
SDL_memset(screen->pixels+screen->pitch*i, 0x00, screen->pitch);
}
for (i=440; i<480; i++)
{
SDL_memset(screen->pixels+screen->pitch*i, 0x00, screen->pitch);
}
screen->pixels+=screen->pitch*40;
}
}
this->UpdateRects = ph_OCDCUpdate;
/* wait for the hardware */
PgFlush();
PgWaitHWIdle();
return 0;
}
#if SDL_VIDEO_OPENGL
int ph_SetupOpenGLImage(_THIS, SDL_Surface* screen)
{
this->UpdateRects = ph_OpenGLUpdate;
screen->pixels=NULL;
screen->pitch=NULL;
#if (_NTO_VERSION >= 630)
if ((screen->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN)
{
if (!ph_EnterFullScreen(this, screen, PH_IGNORE_DIRECTMODE))
{
screen->flags &= ~SDL_FULLSCREEN;
return -1;
}
}
#endif /* 6.3.0 */
if (ph_SetupOpenGLContext(this, screen->w, screen->h, screen->format->BitsPerPixel, screen->flags)!=0)
{
screen->flags &= ~SDL_OPENGL;
return -1;
}
return 0;
}
#endif /* SDL_VIDEO_OPENGL */
void ph_DestroyImage(_THIS, SDL_Surface* screen)
{
#if SDL_VIDEO_OPENGL
if ((screen->flags & SDL_OPENGL)==SDL_OPENGL)
{
if (oglctx)
{
#if (_NTO_VERSION < 630)
PhDCSetCurrent(NULL);
PhDCRelease(oglctx);
#else
qnxgl_context_destroy(oglctx);
qnxgl_buffers_destroy(oglbuffers);
qnxgl_finish();
#endif /* 6.3.0 */
oglctx=NULL;
oglbuffers=NULL;
oglflags=0;
oglbpp=0;
}
#if (_NTO_VERSION >= 630)
if (currently_fullscreen)
{
ph_LeaveFullScreen(this);
}
#endif /* 6.3.0 */
return;
}
#endif /* SDL_VIDEO_OPENGL */
if (currently_fullscreen)
{
/* if we right now in 8bpp fullscreen we must release palette */
if ((screen->format->BitsPerPixel==8) && (desktopbpp!=8))
{
PgSetPalette(syspalph, 0, -1, 0, 0, 0);
PgSetPalette(savedpal, 0, 0, _Pg_MAX_PALETTE, Pg_PALSET_GLOBAL | Pg_PALSET_FORCE_EXPOSE, 0);
PgFlush();
}
ph_LeaveFullScreen(this);
}
if (OCImage.offscreen_context != NULL)
{
PhDCRelease(OCImage.offscreen_context);
OCImage.offscreen_context = NULL;
OCImage.FrameData0 = NULL;
}
if (OCImage.offscreen_backcontext != NULL)
{
PhDCRelease(OCImage.offscreen_backcontext);
OCImage.offscreen_backcontext = NULL;
OCImage.FrameData1 = NULL;
}
OCImage.CurrentFrameData = NULL;
if (SDL_Image)
{
/* if palette allocated, free it */
if (SDL_Image->palette)
{
SDL_free(SDL_Image->palette);
}
PgShmemDestroy(SDL_Image->image);
SDL_free(SDL_Image);
}
/* Must be zeroed everytime */
SDL_Image = NULL;
if (screen)
{
screen->pixels = NULL;
}
}
int ph_UpdateHWInfo(_THIS)
{
PgVideoModeInfo_t vmode;
PgHWCaps_t hwcaps;
/* Update video ram amount */
if (PgGetGraphicsHWCaps(&hwcaps) < 0)
{
SDL_SetError("ph_UpdateHWInfo(): GetGraphicsHWCaps() function failed !\n");
return -1;
}
this->info.video_mem=hwcaps.currently_available_video_ram/1024;
/* obtain current mode capabilities */
if (PgGetVideoModeInfo(hwcaps.current_video_mode, &vmode) < 0)
{
SDL_SetError("ph_UpdateHWInfo(): GetVideoModeInfo() function failed !\n");
return -1;
}
if ((vmode.mode_capabilities1 & PgVM_MODE_CAP1_OFFSCREEN) == PgVM_MODE_CAP1_OFFSCREEN)
{
/* this is a special test for drivers which tries to lie about offscreen capability */
if (hwcaps.currently_available_video_ram!=0)
{
this->info.hw_available = 1;
}
else
{
this->info.hw_available = 0;
}
}
else
{
this->info.hw_available = 0;
}
if ((vmode.mode_capabilities2 & PgVM_MODE_CAP2_RECTANGLE) == PgVM_MODE_CAP2_RECTANGLE)
{
this->info.blit_fill = 1;
}
else
{
this->info.blit_fill = 0;
}
if ((vmode.mode_capabilities2 & PgVM_MODE_CAP2_BITBLT) == PgVM_MODE_CAP2_BITBLT)
{
this->info.blit_hw = 1;
}
else
{
this->info.blit_hw = 0;
}
if ((vmode.mode_capabilities2 & PgVM_MODE_CAP2_ALPHA_BLEND) == PgVM_MODE_CAP2_ALPHA_BLEND)
{
this->info.blit_hw_A = 1;
}
else
{
this->info.blit_hw_A = 0;
}
if ((vmode.mode_capabilities2 & PgVM_MODE_CAP2_CHROMA) == PgVM_MODE_CAP2_CHROMA)
{
this->info.blit_hw_CC = 1;
}
else
{
this->info.blit_hw_CC = 0;
}
return 0;
}
int ph_SetupUpdateFunction(_THIS, SDL_Surface* screen, Uint32 flags)
{
int setupresult=-1;
ph_DestroyImage(this, screen);
#if SDL_VIDEO_OPENGL
if ((flags & SDL_OPENGL)==SDL_OPENGL)
{
setupresult=ph_SetupOpenGLImage(this, screen);
}
else
{
#endif
if ((flags & SDL_FULLSCREEN)==SDL_FULLSCREEN)
{
setupresult=ph_SetupFullScreenImage(this, screen);
}
else
{
if ((flags & SDL_HWSURFACE)==SDL_HWSURFACE)
{
setupresult=ph_SetupOCImage(this, screen);
}
else
{
setupresult=ph_SetupImage(this, screen);
}
}
#if SDL_VIDEO_OPENGL
}
#endif
if (setupresult!=-1)
{
ph_UpdateHWInfo(this);
}
return setupresult;
}
int ph_AllocHWSurface(_THIS, SDL_Surface* surface)
{
PgHWCaps_t hwcaps;
if (surface->hwdata!=NULL)
{
SDL_SetError("ph_AllocHWSurface(): hwdata already exists!\n");
return -1;
}
surface->hwdata=SDL_malloc(sizeof(struct private_hwdata));
SDL_memset(surface->hwdata, 0x00, sizeof(struct private_hwdata));
surface->hwdata->offscreenctx=PdCreateOffscreenContext(0, surface->w, surface->h, Pg_OSC_MEM_PAGE_ALIGN);
if (surface->hwdata->offscreenctx == NULL)
{
SDL_SetError("ph_AllocHWSurface(): PdCreateOffscreenContext() function failed !\n");
return -1;
}
surface->pixels=PdGetOffscreenContextPtr(surface->hwdata->offscreenctx);
if (surface->pixels==NULL)
{
PhDCRelease(surface->hwdata->offscreenctx);
SDL_SetError("ph_AllocHWSurface(): PdGetOffscreenContextPtr() function failed !\n");
return -1;
}
surface->pitch=surface->hwdata->offscreenctx->pitch;
surface->flags|=SDL_HWSURFACE;
surface->flags|=SDL_PREALLOC;
#if 0 /* FIXME */
/* create simple offscreen lock */
surface->hwdata->crlockparam.flags=0;
if (PdCreateOffscreenLock(surface->hwdata->offscreenctx, &surface->hwdata->crlockparam)!=EOK)
{
PhDCRelease(surface->hwdata->offscreenctx);
SDL_SetError("ph_AllocHWSurface(): Can't create offscreen lock !\n");
return -1;
}
#endif /* 0 */
/* Update video ram amount */
if (PgGetGraphicsHWCaps(&hwcaps) < 0)
{
PdDestroyOffscreenLock(surface->hwdata->offscreenctx);
PhDCRelease(surface->hwdata->offscreenctx);
SDL_SetError("ph_AllocHWSurface(): GetGraphicsHWCaps() function failed !\n");
return -1;
}
this->info.video_mem=hwcaps.currently_available_video_ram/1024;
return 0;
}
void ph_FreeHWSurface(_THIS, SDL_Surface* surface)
{
PgHWCaps_t hwcaps;
if (surface->hwdata==NULL)
{
SDL_SetError("ph_FreeHWSurface(): no hwdata!\n");
return;
}
if (surface->hwdata->offscreenctx == NULL)
{
SDL_SetError("ph_FreeHWSurface(): no offscreen context to delete!\n");
return;
}
#if 0 /* FIXME */
/* unlock the offscreen context if it has been locked before destroy it */
if (PdIsOffscreenLocked(surface->hwdata->offscreenctx)==Pg_OSC_LOCKED)
{
PdUnlockOffscreen(surface->hwdata->offscreenctx);
}
PdDestroyOffscreenLock(surface->hwdata->offscreenctx);
#endif /* 0 */
PhDCRelease(surface->hwdata->offscreenctx);
SDL_free(surface->hwdata);
surface->hwdata=NULL;
/* Update video ram amount */
if (PgGetGraphicsHWCaps(&hwcaps) < 0)
{
SDL_SetError("ph_FreeHWSurface(): GetGraphicsHWCaps() function failed !\n");
return;
}
this->info.video_mem=hwcaps.currently_available_video_ram/1024;
return;
}
int ph_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst)
{
if ((src->hwdata==NULL) && (src != this->screen))
{
SDL_SetError("ph_CheckHWBlit(): Source surface haven't hardware specific data.\n");
src->flags&=~SDL_HWACCEL;
return -1;
}
if ((src->flags & SDL_HWSURFACE) != SDL_HWSURFACE)
{
SDL_SetError("ph_CheckHWBlit(): Source surface isn't a hardware surface.\n");
src->flags&=~SDL_HWACCEL;
return -1;
}
if ((src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY)
{
if (this->info.blit_hw_CC!=1)
{
src->flags&=~SDL_HWACCEL;
src->map->hw_blit=NULL;
return -1;
}
}
if ((src->flags & SDL_SRCALPHA) == SDL_SRCALPHA)
{
if (this->info.blit_hw_A!=1)
{
src->flags&=~SDL_HWACCEL;
src->map->hw_blit=NULL;
return -1;
}
}
src->flags|=SDL_HWACCEL;
src->map->hw_blit = ph_HWAccelBlit;
return 1;
}
PgColor_t ph_ExpandColor(_THIS, SDL_Surface* surface, Uint32 color)
{
Uint32 truecolor;
/* Photon API accepts true colors only during hw filling operations */
switch(surface->format->BitsPerPixel)
{
case 8:
{
if ((surface->format->palette) && (color<=surface->format->palette->ncolors))
{
truecolor=PgRGB(surface->format->palette->colors[color].r,
surface->format->palette->colors[color].g,
surface->format->palette->colors[color].b);
}
else
{
SDL_SetError("ph_ExpandColor(): Color out of range for the 8bpp mode !\n");
return 0xFFFFFFFFUL;
}
}
break;
case 15:
{
truecolor = ((color & 0x00007C00UL) << 9) | /* R */
((color & 0x000003E0UL) << 6) | /* G */
((color & 0x0000001FUL) << 3) | /* B */
((color & 0x00007000UL) << 4) | /* R compensation */
((color & 0x00000380UL) << 1) | /* G compensation */
((color & 0x0000001CUL) >> 2); /* B compensation */
}
break;
case 16:
{
truecolor = ((color & 0x0000F800UL) << 8) | /* R */
((color & 0x000007E0UL) << 5) | /* G */
((color & 0x0000001FUL) << 3) | /* B */
((color & 0x0000E000UL) << 3) | /* R compensation */
((color & 0x00000600UL) >> 1) | /* G compensation */
((color & 0x0000001CUL) >> 2); /* B compensation */
}
break;
case 24:
{
truecolor=color & 0x00FFFFFFUL;
}
break;
case 32:
{
truecolor=color;
}
break;
default:
{
SDL_SetError("ph_ExpandColor(): Unsupported depth for the hardware operations !\n");
return 0xFFFFFFFFUL;
}
}
return truecolor;
}
int ph_FillHWRect(_THIS, SDL_Surface* surface, SDL_Rect* rect, Uint32 color)
{
PgColor_t oldcolor;
Uint32 truecolor;
int ydisp=0;
if (this->info.blit_fill!=1)
{
return -1;
}
truecolor=ph_ExpandColor(this, surface, color);
if (truecolor==0xFFFFFFFFUL)
{
return -1;
}
oldcolor=PgSetFillColor(truecolor);
/* 640x400 videomode emulation */
if (videomode_emulatemode==1)
{
ydisp+=40;
}
PgDrawIRect(rect->x, rect->y+ydisp, rect->w+rect->x-1, rect->h+rect->y+ydisp-1, Pg_DRAW_FILL);
PgSetFillColor(oldcolor);
PgFlush();
PgWaitHWIdle();
return 0;
}
int ph_FlipHWSurface(_THIS, SDL_Surface* screen)
{
PhArea_t farea;
if ((screen->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN)
{
/* flush all drawing ops before blitting */
PgFlush();
PgWaitHWIdle();
farea.pos.x=0;
farea.pos.y=0;
farea.size.w=screen->w;
farea.size.h=screen->h;
/* emulate 640x400 videomode */
if (videomode_emulatemode==1)
{
farea.pos.y+=40;
}
PgContextBlitArea(OCImage.offscreen_context, &farea, OCImage.offscreen_backcontext, &farea);
/* flush the blitting */
PgFlush();
PgWaitHWIdle();
}
return 0;
}
int ph_LockHWSurface(_THIS, SDL_Surface* surface)
{
#if 0 /* FIXME */
int lockresult;
if (surface->hwdata == NULL)
{
return;
}
surface->hwdata->lockparam.flags=0;
surface->hwdata->lockparam.time_out=NULL;
lockresult=PdLockOffscreen(surface->hwdata->offscreenctx, &surface->hwdata->lockparam);
switch (lockresult)
{
case EOK:
break;
case Pg_OSC_LOCK_DEADLOCK:
SDL_SetError("ph_LockHWSurface(): Deadlock detected !\n");
return -1;
case Pg_OSC_LOCK_INVALID:
SDL_SetError("ph_LockHWSurface(): Lock invalid !\n");
return -1;
default:
SDL_SetError("ph_LockHWSurface(): Can't lock the surface !\n");
return -1;
}
#endif /* 0 */
return 0;
}
void ph_UnlockHWSurface(_THIS, SDL_Surface* surface)
{
#if 0 /* FIXME */
int unlockresult;
if ((surface == NULL) || (surface->hwdata == NULL))
{
return;
}
if (PdIsOffscreenLocked(surface->hwdata->offscreenctx)==Pg_OSC_LOCKED)
{
unlockresult=PdUnlockOffscreen(surface->hwdata->offscreenctx);
}
#endif /* 0 */
return;
}
int ph_HWAccelBlit(SDL_Surface* src, SDL_Rect* srcrect, SDL_Surface* dst, SDL_Rect* dstrect)
{
SDL_VideoDevice* this=current_video;
PhArea_t srcarea;
PhArea_t dstarea;
int ydisp=0;
/* 640x400 videomode emulation */
if (videomode_emulatemode==1)
{
ydisp+=40;
}
srcarea.pos.x=srcrect->x;
srcarea.pos.y=srcrect->y;
srcarea.size.w=srcrect->w;
srcarea.size.h=srcrect->h;
dstarea.pos.x=dstrect->x;
dstarea.pos.y=dstrect->y;
dstarea.size.w=dstrect->w;
dstarea.size.h=dstrect->h;
if (((src == this->screen) || (src->hwdata!=NULL)) && ((dst == this->screen) || (dst->hwdata!=NULL)))
{
if ((src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY)
{
ph_SetHWColorKey(this, src, src->format->colorkey);
PgChromaOn();
}
if ((src->flags & SDL_SRCALPHA) == SDL_SRCALPHA)
{
ph_SetHWAlpha(this, src, src->format->alpha);
PgAlphaOn();
}
if (dst == this->screen)
{
if (src == this->screen)
{
/* blitting from main screen to main screen */
dstarea.pos.y+=ydisp;
srcarea.pos.y+=ydisp;
PgContextBlitArea(OCImage.offscreen_context, &srcarea, OCImage.offscreen_context, &dstarea);
}
else
{
/* blitting from offscreen to main screen */
dstarea.pos.y+=ydisp;
PgContextBlitArea(src->hwdata->offscreenctx, &srcarea, OCImage.offscreen_context, &dstarea);
}
}
else
{
if (src == this->screen)
{
/* blitting from main screen to offscreen */
srcarea.pos.y+=ydisp;
PgContextBlitArea(OCImage.offscreen_context, &srcarea, dst->hwdata->offscreenctx, &dstarea);
}
else
{
/* blitting offscreen to offscreen */
PgContextBlitArea(src->hwdata->offscreenctx, &srcarea, dst->hwdata->offscreenctx, &dstarea);
}
}
if ((src->flags & SDL_SRCALPHA) == SDL_SRCALPHA)
{
PgAlphaOff();
}
if ((src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY)
{
PgChromaOff();
}
}
else
{
SDL_SetError("ph_HWAccelBlit(): Source or target surface is not a hardware surface !\n");
return -1;
}
PgFlush();
PgWaitHWIdle();
return 0;
}
int ph_SetHWColorKey(_THIS, SDL_Surface *surface, Uint32 key)
{
if (this->info.blit_hw_CC!=1)
{
return -1;
}
if (surface->hwdata!=NULL)
{
surface->hwdata->colorkey=ph_ExpandColor(this, surface, key);
if (surface->hwdata->colorkey==0xFFFFFFFFUL)
{
return -1;
}
}
PgSetChroma(surface->hwdata->colorkey, Pg_CHROMA_SRC_MATCH | Pg_CHROMA_NODRAW);
return 0;
}
int ph_SetHWAlpha(_THIS, SDL_Surface* surface, Uint8 alpha)
{
if (this->info.blit_hw_A!=1)
{
return -1;
}
PgSetAlphaBlend(NULL, alpha);
return 0;
}
#if SDL_VIDEO_OPENGL
void ph_OpenGLUpdate(_THIS, int numrects, SDL_Rect* rects)
{
this->GL_SwapBuffers(this);
return;
}
#endif /* SDL_VIDEO_OPENGL */
void ph_NormalUpdate(_THIS, int numrects, SDL_Rect *rects)
{
PhPoint_t ph_pos;
PhRect_t ph_rect;
int i;
for (i=0; i<numrects; ++i)
{
if (rects[i].w==0) /* Clipped? dunno why but this occurs sometime. */
{
continue;
}
if (rects[i].h==0) /* Clipped? dunno why but this occurs sometime. */
{
continue;
}
ph_pos.x = rects[i].x;
ph_pos.y = rects[i].y;
ph_rect.ul.x = rects[i].x;
ph_rect.ul.y = rects[i].y;
ph_rect.lr.x = rects[i].x + rects[i].w;
ph_rect.lr.y = rects[i].y + rects[i].h;
if (PgDrawPhImageRectmx(&ph_pos, SDL_Image, &ph_rect, 0) < 0)
{
SDL_SetError("ph_NormalUpdate(): PgDrawPhImageRectmx failed!\n");
return;
}
}
if (PgFlush() < 0)
{
SDL_SetError("ph_NormalUpdate(): PgFlush() function failed!\n");