This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
SDL_ph_image.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2006 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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
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Lesser General Public License for more details.
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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
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Sam Lantinga
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slouken@libsdl.org
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*/
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#include "SDL_config.h"
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#include <Ph.h>
#include <photon/Pg.h>
#include "SDL_endian.h"
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#include "SDL_video.h"
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#include "../SDL_pixels_c.h"
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#include "SDL_ph_video.h"
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#include "SDL_ph_image_c.h"
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#include "SDL_ph_modes_c.h"
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#include "SDL_ph_gl.h"
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int
ph_SetupImage(_THIS, SDL_Surface * screen)
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PgColor_t *palette = NULL;
int type = 0;
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int bpp;
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bpp = screen->format->BitsPerPixel;
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/* Determine image type */
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switch (bpp) {
case 8:
{
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type = Pg_IMAGE_PALETTE_BYTE;
}
break;
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case 15:
{
type = Pg_IMAGE_DIRECT_555;
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}
break;
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case 16:
{
type = Pg_IMAGE_DIRECT_565;
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}
break;
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type = Pg_IMAGE_DIRECT_888;
}
break;
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type = Pg_IMAGE_DIRECT_8888;
}
break;
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SDL_SetError("ph_SetupImage(): unsupported bpp=%d !\n", bpp);
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return -1;
}
break;
}
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/* palette emulation code */
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if ((bpp == 8) && (desktoppal == SDLPH_PAL_EMULATE)) {
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/* creating image palette */
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palette = SDL_malloc(_Pg_MAX_PALETTE * sizeof(PgColor_t));
if (palette == NULL) {
SDL_SetError
("ph_SetupImage(): can't allocate memory for palette !\n");
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return -1;
}
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PgGetPalette(palette);
/* using shared memory for speed (set last param to 1) */
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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");
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SDL_free(palette);
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return -1;
}
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/* using shared memory for speed (set last param to 1) */
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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);
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return -1;
}
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screen->pixels = SDL_Image->image;
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screen->pitch = SDL_Image->bpl;
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this->UpdateRects = ph_NormalUpdate;
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return 0;
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}
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int
ph_SetupOCImage(_THIS, SDL_Surface * screen)
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{
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int type = 0;
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int bpp;
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OCImage.flags = screen->flags;
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bpp = screen->format->BitsPerPixel;
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/* Determine image type */
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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;
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/* Currently offscreen contexts with the same bit depth as display bpp only can be created */
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OCImage.offscreen_context =
PdCreateOffscreenContext(0, screen->w, screen->h,
Pg_OSC_MEM_PAGE_ALIGN);
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if (OCImage.offscreen_context == NULL) {
SDL_SetError
("ph_SetupOCImage(): PdCreateOffscreenContext() function failed !\n");
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return -1;
}
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screen->pitch = OCImage.offscreen_context->pitch;
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OCImage.dc_ptr =
(unsigned char *) PdGetOffscreenContextPtr(OCImage.offscreen_context);
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if (OCImage.dc_ptr == NULL) {
SDL_SetError
("ph_SetupOCImage(): PdGetOffscreenContextPtr function failed !\n");
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PhDCRelease(OCImage.offscreen_context);
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return -1;
}
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OCImage.FrameData0 = OCImage.dc_ptr;
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OCImage.CurrentFrameData = OCImage.FrameData0;
OCImage.current = 0;
PhDCSetCurrent(OCImage.offscreen_context);
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screen->pixels = OCImage.CurrentFrameData;
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this->UpdateRects = ph_OCUpdate;
return 0;
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}
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int
ph_SetupFullScreenImage(_THIS, SDL_Surface * screen)
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{
OCImage.flags = screen->flags;
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/* Begin direct and fullscreen mode */
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if (!ph_EnterFullScreen(this, screen, PH_ENTER_DIRECTMODE)) {
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return -1;
}
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/* store palette for fullscreen */
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if ((screen->format->BitsPerPixel == 8) && (desktopbpp != 8)) {
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PgGetPalette(savedpal);
PgGetPalette(syspalph);
}
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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");
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return -1;
}
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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");
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return -1;
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}
}
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OCImage.FrameData0 =
(unsigned char *) PdGetOffscreenContextPtr(OCImage.offscreen_context);
if (OCImage.FrameData0 == NULL) {
SDL_SetError
("ph_SetupFullScreenImage(): PdGetOffscreenContextPtr() function failed !\n");
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ph_DestroyImage(this, screen);
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return -1;
}
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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");
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ph_DestroyImage(this, screen);
return -1;
}
}
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/* wait for the hardware */
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PgFlush();
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PgWaitHWIdle();
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if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) {
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OCImage.current = 0;
PhDCSetCurrent(OCImage.offscreen_context);
screen->pitch = OCImage.offscreen_context->pitch;
screen->pixels = OCImage.FrameData0;
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/* emulate 640x400 videomode */
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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;
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}
PgSwapDisplay(OCImage.offscreen_backcontext, 0);
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OCImage.current = 0;
PhDCSetCurrent(OCImage.offscreen_context);
screen->pitch = OCImage.offscreen_context->pitch;
screen->pixels = OCImage.FrameData0;
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/* emulate 640x400 videomode */
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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;
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this->UpdateRects = ph_OCDCUpdate;
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/* wait for the hardware */
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PgFlush();
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PgWaitHWIdle();
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return 0;
}
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#if SDL_VIDEO_OPENGL
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int
ph_SetupOpenGLImage(_THIS, SDL_Surface * screen)
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{
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this->UpdateRects = ph_OpenGLUpdate;
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screen->pixels = NULL;
screen->pitch = NULL;
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#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;
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}
#endif /* 6.3.0 */
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if (ph_SetupOpenGLContext
(this, screen->w, screen->h, screen->format->BitsPerPixel,
screen->flags) != 0) {
screen->flags &= ~SDL_INTERNALOPENGL;
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return -1;
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return 0;
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#endif /* SDL_VIDEO_OPENGL */
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void
ph_DestroyImage(_THIS, SDL_Surface * screen)
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#if SDL_VIDEO_OPENGL
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if (screen->flags & SDL_INTERNALOPENGL) {
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;
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#if (_NTO_VERSION >= 630)
if (currently_fullscreen) {
ph_LeaveFullScreen(this);
}
#endif /* 6.3.0 */
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return;
}
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#endif /* SDL_VIDEO_OPENGL */
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if (currently_fullscreen) {
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/* if we right now in 8bpp fullscreen we must release palette */
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if ((screen->format->BitsPerPixel == 8) && (desktopbpp != 8)) {
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PgSetPalette(syspalph, 0, -1, 0, 0, 0);
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PgSetPalette(savedpal, 0, 0, _Pg_MAX_PALETTE,
Pg_PALSET_GLOBAL | Pg_PALSET_FORCE_EXPOSE, 0);
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PgFlush();
}
ph_LeaveFullScreen(this);
}
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if (OCImage.offscreen_context != NULL) {
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PhDCRelease(OCImage.offscreen_context);
OCImage.offscreen_context = NULL;
OCImage.FrameData0 = NULL;
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if (OCImage.offscreen_backcontext != NULL) {
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PhDCRelease(OCImage.offscreen_backcontext);
OCImage.offscreen_backcontext = NULL;
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OCImage.FrameData1 = NULL;
}
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OCImage.CurrentFrameData = NULL;
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if (SDL_Image) {
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/* if palette allocated, free it */
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if (SDL_Image->palette) {
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SDL_free(SDL_Image->palette);
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PgShmemDestroy(SDL_Image->image);
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SDL_free(SDL_Image);
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/* Must be zeroed everytime */
SDL_Image = NULL;
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if (screen) {
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screen->pixels = NULL;
}
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}
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int
ph_UpdateHWInfo(_THIS)
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{
PgVideoModeInfo_t vmode;
PgHWCaps_t hwcaps;
/* Update video ram amount */
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if (PgGetGraphicsHWCaps(&hwcaps) < 0) {
SDL_SetError
("ph_UpdateHWInfo(): GetGraphicsHWCaps() function failed !\n");
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return -1;
}
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this->info.video_mem = hwcaps.currently_available_video_ram / 1024;
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/* obtain current mode capabilities */
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if (PgGetVideoModeInfo(hwcaps.current_video_mode, &vmode) < 0) {
SDL_SetError
("ph_UpdateHWInfo(): GetVideoModeInfo() function failed !\n");
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return -1;
}
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if ((vmode.mode_capabilities1 & PgVM_MODE_CAP1_OFFSCREEN) ==
PgVM_MODE_CAP1_OFFSCREEN) {
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/* this is a special test for drivers which tries to lie about offscreen capability */
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if (hwcaps.currently_available_video_ram != 0) {
this->info.hw_available = 1;
} else {
this->info.hw_available = 0;
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this->info.hw_available = 0;
}
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if ((vmode.mode_capabilities2 & PgVM_MODE_CAP2_RECTANGLE) ==
PgVM_MODE_CAP2_RECTANGLE) {
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this->info.blit_fill = 1;
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this->info.blit_fill = 0;
}
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if ((vmode.mode_capabilities2 & PgVM_MODE_CAP2_BITBLT) ==
PgVM_MODE_CAP2_BITBLT) {
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this->info.blit_hw = 1;
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this->info.blit_hw = 0;
}
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if ((vmode.mode_capabilities2 & PgVM_MODE_CAP2_ALPHA_BLEND) ==
PgVM_MODE_CAP2_ALPHA_BLEND) {
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this->info.blit_hw_A = 1;
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this->info.blit_hw_A = 0;
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if ((vmode.mode_capabilities2 & PgVM_MODE_CAP2_CHROMA) ==
PgVM_MODE_CAP2_CHROMA) {
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this->info.blit_hw_CC = 1;
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this->info.blit_hw_CC = 0;
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return 0;
}
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int
ph_SetupUpdateFunction(_THIS, SDL_Surface * screen, Uint32 flags)
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{
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int setupresult = -1;
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ph_DestroyImage(this, screen);
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#if SDL_VIDEO_OPENGL
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if (flags & SDL_INTERNALOPENGL) {
setupresult = ph_SetupOpenGLImage(this, screen);
} else {
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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);
}
}
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#if SDL_VIDEO_OPENGL
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if (setupresult != -1) {
ph_UpdateHWInfo(this);
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}
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return setupresult;
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}
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int
ph_AllocHWSurface(_THIS, SDL_Surface * surface)
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{
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PgHWCaps_t hwcaps;
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if (surface->hwdata != NULL) {
SDL_SetError("ph_AllocHWSurface(): hwdata already exists!\n");
return -1;
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surface->hwdata = SDL_malloc(sizeof(struct private_hwdata));
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SDL_memset(surface->hwdata, 0x00, sizeof(struct private_hwdata));
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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");
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return -1;
}
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surface->pixels = PdGetOffscreenContextPtr(surface->hwdata->offscreenctx);
if (surface->pixels == NULL) {
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PhDCRelease(surface->hwdata->offscreenctx);
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SDL_SetError
("ph_AllocHWSurface(): PdGetOffscreenContextPtr() function failed !\n");
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return -1;
}
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surface->pitch = surface->hwdata->offscreenctx->pitch;
surface->flags |= SDL_HWSURFACE;
surface->flags |= SDL_PREALLOC;
#if 0 /* FIXME */
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/* create simple offscreen lock */
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surface->hwdata->crlockparam.flags = 0;
if (PdCreateOffscreenLock
(surface->hwdata->offscreenctx, &surface->hwdata->crlockparam) != EOK)
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{
PhDCRelease(surface->hwdata->offscreenctx);
SDL_SetError("ph_AllocHWSurface(): Can't create offscreen lock !\n");
return -1;
}
#endif /* 0 */
/* Update video ram amount */
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if (PgGetGraphicsHWCaps(&hwcaps) < 0) {
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PdDestroyOffscreenLock(surface->hwdata->offscreenctx);
PhDCRelease(surface->hwdata->offscreenctx);
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SDL_SetError
("ph_AllocHWSurface(): GetGraphicsHWCaps() function failed !\n");
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return -1;
}
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this->info.video_mem = hwcaps.currently_available_video_ram / 1024;
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return 0;
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}
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void
ph_FreeHWSurface(_THIS, SDL_Surface * surface)
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{
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PgHWCaps_t hwcaps;
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if (surface->hwdata == NULL) {
SDL_SetError("ph_FreeHWSurface(): no hwdata!\n");
return;
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if (surface->hwdata->offscreenctx == NULL) {
SDL_SetError("ph_FreeHWSurface(): no offscreen context to delete!\n");
return;
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#if 0 /* FIXME */
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/* unlock the offscreen context if it has been locked before destroy it */
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if (PdIsOffscreenLocked(surface->hwdata->offscreenctx) == Pg_OSC_LOCKED) {
PdUnlockOffscreen(surface->hwdata->offscreenctx);
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}
PdDestroyOffscreenLock(surface->hwdata->offscreenctx);
#endif /* 0 */
PhDCRelease(surface->hwdata->offscreenctx);
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SDL_free(surface->hwdata);
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surface->hwdata = NULL;
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/* Update video ram amount */
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if (PgGetGraphicsHWCaps(&hwcaps) < 0) {
SDL_SetError
("ph_FreeHWSurface(): GetGraphicsHWCaps() function failed !\n");
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return;
}
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this->info.video_mem = hwcaps.currently_available_video_ram / 1024;
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return;
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}
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int
ph_CheckHWBlit(_THIS, SDL_Surface * src, SDL_Surface * dst)
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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;
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PgColor_t
ph_ExpandColor(_THIS, SDL_Surface * surface, Uint32 color)
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{
Uint32 truecolor;
/* Photon API accepts true colors only during hw filling operations */
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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");
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return 0xFFFFFFFFUL;
}
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}
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;
}
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}
return truecolor;
}
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int
ph_FillHWRect(_THIS, SDL_Surface * surface, SDL_Rect * rect, Uint32 color)
706
707
708
{
PgColor_t oldcolor;
Uint32 truecolor;
709
int ydisp = 0;
711
712
if (this->info.blit_fill != 1) {
return -1;
715
716
truecolor = ph_ExpandColor(this, surface, color);
if (truecolor == 0xFFFFFFFFUL) {
717
718
719
return -1;
}
720
oldcolor = PgSetFillColor(truecolor);
721
722
/* 640x400 videomode emulation */
723
724
if (videomode_emulatemode == 1) {
ydisp += 40;
727
728
PgDrawIRect(rect->x, rect->y + ydisp, rect->w + rect->x - 1,
rect->h + rect->y + ydisp - 1, Pg_DRAW_FILL);
729
730
731
732
733
734
735
PgSetFillColor(oldcolor);
PgFlush();
PgWaitHWIdle();
return 0;
}
736
737
int
ph_FlipHWSurface(_THIS, SDL_Surface * screen)
738
{
739
740
PhArea_t farea;
741
if ((screen->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN) {
742
743
/* flush all drawing ops before blitting */
PgFlush();
744
PgWaitHWIdle();
746
747
748
749
farea.pos.x = 0;
farea.pos.y = 0;
farea.size.w = screen->w;
farea.size.h = screen->h;
750
751
/* emulate 640x400 videomode */
752
753
if (videomode_emulatemode == 1) {
farea.pos.y += 40;
756
757
PgContextBlitArea(OCImage.offscreen_context, &farea,
OCImage.offscreen_backcontext, &farea);
758
759
760
761
762
763
764
765
/* flush the blitting */
PgFlush();
PgWaitHWIdle();
}
return 0;
}
766
767
int
ph_LockHWSurface(_THIS, SDL_Surface * surface)
770
#if 0 /* FIXME */
771
772
int lockresult;
773
if (surface->hwdata == NULL) {
774
775
776
return;
}
777
778
779
780
781
surface->hwdata->lockparam.flags = 0;
surface->hwdata->lockparam.time_out = NULL;
lockresult =
PdLockOffscreen(surface->hwdata->offscreenctx,
&surface->hwdata->lockparam);
783
784
785
786
787
788
789
790
791
792
793
794
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;
795
796
797
798
799
800
}
#endif /* 0 */
return 0;
}
801
802
void
ph_UnlockHWSurface(_THIS, SDL_Surface * surface)
805
#if 0 /* FIXME */
806
807
int unlockresult;
808
if ((surface == NULL) || (surface->hwdata == NULL)) {
809
810
811
return;
}
812
813
if (PdIsOffscreenLocked(surface->hwdata->offscreenctx) == Pg_OSC_LOCKED) {
unlockresult = PdUnlockOffscreen(surface->hwdata->offscreenctx);
814
815
816
817
818
819
}
#endif /* 0 */
return;
}
820
821
822
int
ph_HWAccelBlit(SDL_Surface * src, SDL_Rect * srcrect, SDL_Surface * dst,
SDL_Rect * dstrect)
824
SDL_VideoDevice *this = current_video;
825
826
PhArea_t srcarea;
PhArea_t dstarea;
827
int ydisp = 0;
828
829
/* 640x400 videomode emulation */
830
831
if (videomode_emulatemode == 1) {
ydisp += 40;
834
835
836
837
srcarea.pos.x = srcrect->x;
srcarea.pos.y = srcrect->y;
srcarea.size.w = srcrect->w;
srcarea.size.h = srcrect->h;
839
840
841
842
dstarea.pos.x = dstrect->x;
dstarea.pos.y = dstrect->y;
dstarea.size.w = dstrect->w;
dstarea.size.h = dstrect->h;
844
845
846
if (((src == this->screen) || (src->hwdata != NULL))
&& ((dst == this->screen) || (dst->hwdata != NULL))) {
if ((src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) {
847
848
849
850
ph_SetHWColorKey(this, src, src->format->colorkey);
PgChromaOn();
}
851
if ((src->flags & SDL_SRCALPHA) == SDL_SRCALPHA) {
852
853
854
855
ph_SetHWAlpha(this, src, src->format->alpha);
PgAlphaOn();
}
856
857
if (dst == this->screen) {
if (src == this->screen) {
858
/* blitting from main screen to main screen */
859
860
861
862
863
dstarea.pos.y += ydisp;
srcarea.pos.y += ydisp;
PgContextBlitArea(OCImage.offscreen_context, &srcarea,
OCImage.offscreen_context, &dstarea);
} else {
864
/* blitting from offscreen to main screen */
865
866
867
dstarea.pos.y += ydisp;
PgContextBlitArea(src->hwdata->offscreenctx, &srcarea,
OCImage.offscreen_context, &dstarea);
869
870
} else {
if (src == this->screen) {
871
/* blitting from main screen to offscreen */
872
873
874
875
srcarea.pos.y += ydisp;
PgContextBlitArea(OCImage.offscreen_context, &srcarea,
dst->hwdata->offscreenctx, &dstarea);
} else {
876
/* blitting offscreen to offscreen */
877
878
PgContextBlitArea(src->hwdata->offscreenctx, &srcarea,
dst->hwdata->offscreenctx, &dstarea);
879
880
881
}
}
882
if ((src->flags & SDL_SRCALPHA) == SDL_SRCALPHA) {
883
884
885
PgAlphaOff();
}
886
if ((src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) {
887
PgChromaOff();
889
890
891
} else {
SDL_SetError
("ph_HWAccelBlit(): Source or target surface is not a hardware surface !\n");
892
893
894
895
896
897
return -1;
}
PgFlush();
PgWaitHWIdle();
898
return 0;
899
900
}
901
902
int
ph_SetHWColorKey(_THIS, SDL_Surface * surface, Uint32 key)
903
{
904
905
if (this->info.blit_hw_CC != 1) {
return -1;
908
909
910
if (surface->hwdata != NULL) {
surface->hwdata->colorkey = ph_ExpandColor(this, surface, key);
if (surface->hwdata->colorkey == 0xFFFFFFFFUL) {
911
912
913
return -1;
}
}
914
915
PgSetChroma(surface->hwdata->colorkey,
Pg_CHROMA_SRC_MATCH | Pg_CHROMA_NODRAW);
916
917
return 0;
918
919
}
920
921
int
ph_SetHWAlpha(_THIS, SDL_Surface * surface, Uint8 alpha)
922
{
923
924
if (this->info.blit_hw_A != 1) {
return -1;
925
926
927
928
929
}
PgSetAlphaBlend(NULL, alpha);
return 0;
930
931
}
932
#if SDL_VIDEO_OPENGL
933
934
void
ph_OpenGLUpdate(_THIS, int numrects, SDL_Rect * rects)
936
937
938
this->GL_SwapBuffers(this);
return;
940
#endif /* SDL_VIDEO_OPENGL */
942
943
void
ph_NormalUpdate(_THIS, int numrects, SDL_Rect * rects)
944
{
945
946
947
948
PhPoint_t ph_pos;
PhRect_t ph_rect;
int i;
949
950
for (i = 0; i < numrects; ++i) {
if (rects[i].w == 0) { /* Clipped? dunno why but this occurs sometime. */
951
continue;
952
953
}
954
if (rects[i].h == 0) { /* Clipped? dunno why but this occurs sometime. */
955
956
957
continue;
}
958
959
960
961
962
963
964
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;
965
if (PgDrawPhImageRectmx(&ph_pos, SDL_Image, &ph_rect, 0) < 0) {
966
967
SDL_SetError("ph_NormalUpdate(): PgDrawPhImageRectmx failed!\n");
return;
968
969
}
}
971
972
if (PgFlush() < 0) {
SDL_SetError("ph_NormalUpdate(): PgFlush() function failed!\n");
973
974
}
}
976
977
void
ph_OCUpdate(_THIS, int numrects, SDL_Rect * rects)
978
{
979
980
int i;
981
PhPoint_t zero = { 0, 0 };
982
983
PhArea_t src_rect;
PhArea_t dest_rect;
985
PgSetTranslation(&zero, 0);
986
PgSetRegion(PtWidgetRid(window));
987
PgSetClipping(0, NULL);
988
989
PgFlush();
990
991
PgWaitHWIdle();
992
993
for (i = 0; i < numrects; ++i) {
if (rects[i].w == 0) { /* Clipped? */
994
continue;
995
996
}
997
if (rects[i].h == 0) { /* Clipped? */
998
999
continue;
}