Mercurial > sdl-ios-xcode
view src/video/photon/SDL_phyuv.c @ 2349:0381047f2210 gsoc2008_iphone
The class SDL_uikitappdelegate acts as the UIApplicationDelegate for an iPhone SDL project. This class is reponsible for application control flow, including initial setup of working directory, forwarding command line arguments to the user's main function, and handling application termination.
author | Holmes Futrell <hfutrell@umail.ucsb.edu> |
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date | Thu, 17 Jul 2008 22:29:37 +0000 |
parents | c121d94672cb |
children | e27bdcc80744 204be4fc2726 |
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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 "SDL_config.h" /* This is the QNX Realtime Platform version of SDL YUV video overlays */ #include <errno.h> #include <Ph.h> #include <Pt.h> #include "SDL_video.h" #include "SDL_phyuv_c.h" #include "../SDL_yuvfuncs.h" #define OVERLAY_STATE_UNINIT 0 #define OVERLAY_STATE_ACTIVE 1 /* The functions are used to manipulate software video overlays */ static struct private_yuvhwfuncs ph_yuvfuncs = { ph_LockYUVOverlay, ph_UnlockYUVOverlay, ph_DisplayYUVOverlay, ph_FreeYUVOverlay }; int grab_ptrs2(PgVideoChannel_t * channel, FRAMEDATA * Frame0, FRAMEDATA * Frame1) { int planes = 0; /* Buffers have moved; re-obtain the pointers */ Frame0->Y = (unsigned char *) PdGetOffscreenContextPtr(channel->yplane1); Frame1->Y = (unsigned char *) PdGetOffscreenContextPtr(channel->yplane2); Frame0->U = (unsigned char *) PdGetOffscreenContextPtr(channel->vplane1); Frame1->U = (unsigned char *) PdGetOffscreenContextPtr(channel->vplane2); Frame0->V = (unsigned char *) PdGetOffscreenContextPtr(channel->uplane1); Frame1->V = (unsigned char *) PdGetOffscreenContextPtr(channel->uplane2); if (Frame0->Y) planes++; if (Frame0->U) planes++; if (Frame0->V) planes++; return planes; } SDL_Overlay * ph_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface * display) { SDL_Overlay *overlay; struct private_yuvhwdata *hwdata; int vidport; int rtncode; int planes; int i = 0; PhPoint_t pos; /* Create the overlay structure */ overlay = SDL_calloc(1, sizeof(SDL_Overlay)); if (overlay == NULL) { SDL_OutOfMemory(); return NULL; } /* Fill in the basic members */ overlay->format = format; overlay->w = width; overlay->h = height; overlay->hwdata = NULL; /* Set up the YUV surface function structure */ overlay->hwfuncs = &ph_yuvfuncs; /* Create the pixel data and lookup tables */ hwdata = SDL_calloc(1, sizeof(struct private_yuvhwdata)); if (hwdata == NULL) { SDL_OutOfMemory(); SDL_FreeYUVOverlay(overlay); return NULL; } overlay->hwdata = hwdata; PhDCSetCurrent(0); if (overlay->hwdata->channel == NULL) { if ((overlay->hwdata->channel = PgCreateVideoChannel(Pg_VIDEO_CHANNEL_SCALER, 0)) == NULL) { SDL_SetError ("ph_CreateYUVOverlay(): Create channel failed: %s\n", strerror(errno)); SDL_FreeYUVOverlay(overlay); return NULL; } } overlay->hwdata->forcedredraw = 0; PtGetAbsPosition(window, &pos.x, &pos.y); overlay->hwdata->CurrentWindowPos.x = pos.x; overlay->hwdata->CurrentWindowPos.y = pos.y; overlay->hwdata->CurrentViewPort.pos.x = 0; overlay->hwdata->CurrentViewPort.pos.y = 0; overlay->hwdata->CurrentViewPort.size.w = width; overlay->hwdata->CurrentViewPort.size.h = height; overlay->hwdata->State = OVERLAY_STATE_UNINIT; overlay->hwdata->FrameData0 = (FRAMEDATA *) SDL_calloc(1, sizeof(FRAMEDATA)); overlay->hwdata->FrameData1 = (FRAMEDATA *) SDL_calloc(1, sizeof(FRAMEDATA)); vidport = -1; i = 0; overlay->hwdata->ischromakey = 0; do { SDL_memset(&overlay->hwdata->caps, 0x00, sizeof(PgScalerCaps_t)); overlay->hwdata->caps.size = sizeof(PgScalerCaps_t); rtncode = PgGetScalerCapabilities(overlay->hwdata->channel, i, &overlay->hwdata->caps); if (rtncode == 0) { if (overlay->hwdata->caps.format == format) { if ((overlay->hwdata->caps. flags & Pg_SCALER_CAP_DST_CHROMA_KEY) == Pg_SCALER_CAP_DST_CHROMA_KEY) { overlay->hwdata->ischromakey = 1; } vidport = 1; break; } } else { break; } i++; } while (1); if (vidport == -1) { SDL_SetError("No available video ports for requested format\n"); SDL_FreeYUVOverlay(overlay); return NULL; } overlay->hwdata->format = format; overlay->hwdata->props.format = format; overlay->hwdata->props.size = sizeof(PgScalerProps_t); overlay->hwdata->props.src_dim.w = width; overlay->hwdata->props.src_dim.h = height; /* overlay->hwdata->chromakey = PgGetOverlayChromaColor(); */ overlay->hwdata->chromakey = PgRGB(12, 6, 12); /* very dark pink color */ overlay->hwdata->props.color_key = overlay->hwdata->chromakey; PhAreaToRect(&overlay->hwdata->CurrentViewPort, &overlay->hwdata->props.viewport); overlay->hwdata->props.flags = Pg_SCALER_PROP_DOUBLE_BUFFER; if ((overlay->hwdata->ischromakey) && (overlay->hwdata->chromakey)) { overlay->hwdata->props.flags |= Pg_SCALER_PROP_CHROMA_ENABLE; overlay->hwdata->props.flags |= Pg_SCALER_PROP_CHROMA_SPECIFY_KEY_MASK; } else { overlay->hwdata->props.flags &= ~Pg_SCALER_PROP_CHROMA_ENABLE; } rtncode = PgConfigScalerChannel(overlay->hwdata->channel, &overlay->hwdata->props); switch (rtncode) { case -1: SDL_SetError("PgConfigScalerChannel failed\n"); SDL_FreeYUVOverlay(overlay); return NULL; case 1: case 0: default: break; } planes = grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1); if (overlay->hwdata->channel->yplane1 != NULL) overlay->hwdata->YStride = overlay->hwdata->channel->yplane1->pitch; if (overlay->hwdata->channel->vplane1 != NULL) overlay->hwdata->UStride = overlay->hwdata->channel->vplane1->pitch; if (overlay->hwdata->channel->uplane1 != NULL) overlay->hwdata->VStride = overlay->hwdata->channel->uplane1->pitch; /* check for the validness of all planes */ if ((overlay->hwdata->channel->yplane1 == NULL) && (overlay->hwdata->channel->uplane1 == NULL) && (overlay->hwdata->channel->vplane1 == NULL)) { SDL_FreeYUVOverlay(overlay); SDL_SetError("PgConfigScaler() returns all planes equal NULL\n"); return NULL; } /* overlay->hwdata->current = PgNextVideoFrame(overlay->hwdata->channel); if (overlay->hwdata->current==0) { overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData0; } else { overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData1; } */ overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData0; /* overlay->hwdata->locked = 1; */ /* Find the pitch and offset values for the overlay */ overlay->planes = planes; overlay->pitches = SDL_calloc(overlay->planes, sizeof(Uint16)); overlay->pixels = SDL_calloc(overlay->planes, sizeof(Uint8 *)); if (!overlay->pitches || !overlay->pixels) { SDL_OutOfMemory(); SDL_FreeYUVOverlay(overlay); return (NULL); } if (overlay->planes > 0) { overlay->pitches[0] = overlay->hwdata->channel->yplane1->pitch; overlay->pixels[0] = overlay->hwdata->CurrentFrameData->Y; } if (overlay->planes > 1) { overlay->pitches[1] = overlay->hwdata->channel->vplane1->pitch; overlay->pixels[1] = overlay->hwdata->CurrentFrameData->U; } if (overlay->planes > 2) { overlay->pitches[2] = overlay->hwdata->channel->uplane1->pitch; overlay->pixels[2] = overlay->hwdata->CurrentFrameData->V; } overlay->hwdata->State = OVERLAY_STATE_ACTIVE; overlay->hwdata->scaler_on = 0; overlay->hw_overlay = 1; current_overlay = overlay; return overlay; } int ph_LockYUVOverlay(_THIS, SDL_Overlay * overlay) { if (overlay == NULL) { return -1; } overlay->hwdata->locked = 1; /* overlay->hwdata->current = PgNextVideoFrame(overlay->hwdata->channel); if (overlay->hwdata->current == -1) { SDL_SetError("ph_LockYUVOverlay: PgNextFrame() failed, bailing out\n"); SDL_FreeYUVOverlay(overlay); return 0; } if (overlay->hwdata->current == 0) { overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData0; } else { overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData1; } if (overlay->planes > 0) { overlay->pitches[0] = overlay->hwdata->channel->yplane1->pitch; overlay->pixels[0] = overlay->hwdata->CurrentFrameData->Y; } if (overlay->planes > 1) { overlay->pitches[1] = overlay->hwdata->channel->uplane1->pitch; overlay->pixels[1] = overlay->hwdata->CurrentFrameData->U; } if (overlay->planes > 2) { overlay->pitches[2] = overlay->hwdata->channel->vplane1->pitch; overlay->pixels[2] = overlay->hwdata->CurrentFrameData->V; } */ return (0); } void ph_UnlockYUVOverlay(_THIS, SDL_Overlay * overlay) { if (overlay == NULL) { return; } overlay->hwdata->locked = 0; } int ph_DisplayYUVOverlay(_THIS, SDL_Overlay * overlay, SDL_Rect * src, SDL_Rect * dst) { int rtncode; PhPoint_t pos; SDL_Rect backrect; PhRect_t windowextent; int winchanged = 0; if ((overlay == NULL) || (overlay->hwdata == NULL)) { return -1; } if (overlay->hwdata->State == OVERLAY_STATE_UNINIT) { return -1; } PtGetAbsPosition(window, &pos.x, &pos.y); if ((pos.x != overlay->hwdata->CurrentWindowPos.x) || (pos.y != overlay->hwdata->CurrentWindowPos.y)) { winchanged = 1; overlay->hwdata->CurrentWindowPos.x = pos.x; overlay->hwdata->CurrentWindowPos.y = pos.y; } /* If CurrentViewPort position/size has been changed, then move/resize the viewport */ if ((overlay->hwdata->CurrentViewPort.pos.x != dst->x) || (overlay->hwdata->CurrentViewPort.pos.y != dst->y) || (overlay->hwdata->CurrentViewPort.size.w != dst->w) || (overlay->hwdata->CurrentViewPort.size.h != dst->h) || (overlay->hwdata->scaler_on == 0) || (winchanged == 1) || (overlay->hwdata->forcedredraw == 1)) { if (overlay->hwdata->ischromakey == 1) { /* restore screen behind the overlay/chroma color. */ backrect.x = overlay->hwdata->CurrentViewPort.pos.x; backrect.y = overlay->hwdata->CurrentViewPort.pos.y; backrect.w = overlay->hwdata->CurrentViewPort.size.w; backrect.h = overlay->hwdata->CurrentViewPort.size.h; this->UpdateRects(this, 1, &backrect); /* Draw the new rectangle of the chroma color at the viewport position */ PgSetFillColor(overlay->hwdata->chromakey); PgDrawIRect(dst->x, dst->y, dst->x + dst->w - 1, dst->y + dst->h - 1, Pg_DRAW_FILL); PgFlush(); } overlay->hwdata->props.flags |= Pg_SCALER_PROP_SCALER_ENABLE; overlay->hwdata->scaler_on = 1; PhWindowQueryVisible(Ph_QUERY_CONSOLE, 0, PtWidgetRid(window), &windowextent); overlay->hwdata->CurrentViewPort.pos.x = pos.x - windowextent.ul.x + dst->x; overlay->hwdata->CurrentViewPort.pos.y = pos.y - windowextent.ul.y + dst->y; overlay->hwdata->CurrentViewPort.size.w = dst->w; overlay->hwdata->CurrentViewPort.size.h = dst->h; PhAreaToRect(&overlay->hwdata->CurrentViewPort, &overlay->hwdata->props.viewport); overlay->hwdata->CurrentViewPort.pos.x = dst->x; overlay->hwdata->CurrentViewPort.pos.y = dst->y; rtncode = PgConfigScalerChannel(overlay->hwdata->channel, &(overlay->hwdata->props)); switch (rtncode) { case -1: SDL_SetError("PgConfigScalerChannel() function failed\n"); SDL_FreeYUVOverlay(overlay); return -1; case 1: grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1); break; case 0: default: break; } } /* if (overlay->hwdata->locked==0) { overlay->hwdata->current = PgNextVideoFrame(overlay->hwdata->channel); if (overlay->hwdata->current == -1) { SDL_SetError("ph_LockYUVOverlay: PgNextFrame() failed, bailing out\n"); SDL_FreeYUVOverlay(overlay); return 0; } if (overlay->hwdata->current == 0) { overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData0; } else { overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData1; } if (overlay->planes > 0) { overlay->pitches[0] = overlay->hwdata->channel->yplane1->pitch; overlay->pixels[0] = overlay->hwdata->CurrentFrameData->Y; } if (overlay->planes > 1) { overlay->pitches[1] = overlay->hwdata->channel->uplane1->pitch; overlay->pixels[1] = overlay->hwdata->CurrentFrameData->U; } if (overlay->planes > 2) { overlay->pitches[2] = overlay->hwdata->channel->vplane1->pitch; overlay->pixels[2] = overlay->hwdata->CurrentFrameData->V; } } */ return 0; } void ph_FreeYUVOverlay(_THIS, SDL_Overlay * overlay) { SDL_Rect backrect; if (overlay == NULL) { return; } if (overlay->hwdata == NULL) { return; } current_overlay = NULL; /* restore screen behind the overlay/chroma color. */ backrect.x = overlay->hwdata->CurrentViewPort.pos.x; backrect.y = overlay->hwdata->CurrentViewPort.pos.y; backrect.w = overlay->hwdata->CurrentViewPort.size.w; backrect.h = overlay->hwdata->CurrentViewPort.size.h; this->UpdateRects(this, 1, &backrect); /* it is need for some buggy drivers, that can't hide overlay before */ /* freeing buffer, so we got trash on the srceen */ overlay->hwdata->props.flags &= ~Pg_SCALER_PROP_SCALER_ENABLE; PgConfigScalerChannel(overlay->hwdata->channel, &(overlay->hwdata->props)); overlay->hwdata->scaler_on = 0; overlay->hwdata->State = OVERLAY_STATE_UNINIT; if (overlay->hwdata->channel != NULL) { PgDestroyVideoChannel(overlay->hwdata->channel); overlay->hwdata->channel = NULL; return; } overlay->hwdata->CurrentFrameData = NULL; SDL_free(overlay->hwdata->FrameData0); SDL_free(overlay->hwdata->FrameData1); overlay->hwdata->FrameData0 = NULL; overlay->hwdata->FrameData1 = NULL; SDL_free(overlay->hwdata); } /* vi: set ts=4 sw=4 expandtab: */