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Date: Sun, 3 Aug 2003 22:07:57 +0200 From: Max Horn Subject: SDL OSX fullscreen FIX the attached patch fixes the fullscreen problems on SDL/OSX. The cause was that click events are bounded by winRect. Now, winRect is set to the size of the video surface. But if you e.g. request a 640x420 surface, you might get a 640x480 "real" surface. Still, SDL_VideoSurface->h will be set to 420! Thus, the upper 60 pixels in my example received no mouse down events. My fix simply disables this clipping when in full screen mode - after all, all clicks then should be inside the screen surface. Higher SDL functions ensure that the coordinates then are clipped to 640x420. It works fine in all my tests here. I don't know if it's the right thing to do in multi screen scenarios, though.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 04 Aug 2003 01:00:30 +0000
parents 8bedd6d61642
children b14fdadd8311
line wrap: on
line source

/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002  Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 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
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    Sam Lantinga
    slouken@libsdl.org
*/

#ifdef SAVE_RCSID
static char rcsid =
 "@(#) $Id$";
#endif

/* This is the QNX Realtime Platform version of SDL YUV video overlays */

#include <stdlib.h>
#include <string.h>
#include <errno.h>

#include <Ph.h>
#include <Pt.h>

#include "SDL_error.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 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->uplane1);
    Frame1->U = (unsigned char *)PdGetOffscreenContextPtr(channel->uplane2);
    Frame0->V = (unsigned char *)PdGetOffscreenContextPtr(channel->vplane1);
    Frame1->V = (unsigned char *)PdGetOffscreenContextPtr(channel->vplane2);

    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 = 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 = 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 *) calloc(1, sizeof(FRAMEDATA));
    overlay->hwdata->FrameData1 = (FRAMEDATA *) calloc(1, sizeof(FRAMEDATA));

    vidport = -1;
    i=0;
    
    overlay->hwdata->ischromakey=0;

    do {
        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();

    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;
    } 
    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->uplane1 != NULL)
        overlay->hwdata->UStride = overlay->hwdata->channel->uplane1->pitch;
    if(overlay->hwdata->channel->vplane1 != NULL)
        overlay->hwdata->VStride = overlay->hwdata->channel->vplane1->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 = calloc(overlay->planes, sizeof(Uint16));
    overlay->pixels  = 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->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;
    }

    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 0;
    }

    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* dstrect)
{
    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 != dstrect->x) ||
        (overlay->hwdata->CurrentViewPort.pos.y != dstrect->y) ||
        (overlay->hwdata->CurrentViewPort.size.w != dstrect->w) ||
        (overlay->hwdata->CurrentViewPort.size.h != dstrect->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(dstrect->x, dstrect->y, dstrect->x+dstrect->w-1, dstrect->y+dstrect->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+dstrect->x;
        overlay->hwdata->CurrentViewPort.pos.y = pos.y-windowextent.ul.y+dstrect->y;
        overlay->hwdata->CurrentViewPort.size.w = dstrect->w;
        overlay->hwdata->CurrentViewPort.size.h = dstrect->h;
        PhAreaToRect(&overlay->hwdata->CurrentViewPort, &overlay->hwdata->props.viewport);
        overlay->hwdata->CurrentViewPort.pos.x = dstrect->x;
        overlay->hwdata->CurrentViewPort.pos.y = dstrect->y;

        rtncode = PgConfigScalerChannel(overlay->hwdata->channel, &(overlay->hwdata->props));

        switch(rtncode)
        {
            case -1:
                     SDL_SetError("PgConfigScalerChannel failed\n");
                     SDL_FreeYUVOverlay(overlay);
                     return (0);
            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;  
	
    free(overlay->hwdata->FrameData0);
    free(overlay->hwdata->FrameData1);
    overlay->hwdata->FrameData0 = NULL;
    overlay->hwdata->FrameData1 = NULL;
    free(overlay->hwdata);
}