forked from KolibriOS/kolibrios
142 lines
2.9 KiB
C++
142 lines
2.9 KiB
C++
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static pixmap_t* alloc_pixmap()
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{
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if( px_slab.available )
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{
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pixmap_t *pixmap;
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px_slab.available--;
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pixmap = (pixmap_t*)px_slab.nextavail;
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px_slab.nextavail = *(void**)pixmap;
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return pixmap;
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}
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return NULL;
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};
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static void free_pixmap(pixmap_t *pixmap)
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{
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*(void**)pixmap = px_slab.nextavail;
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px_slab.nextavail = pixmap;
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px_slab.available++;
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};
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pixmap_t* CreatePixmap(unsigned width, unsigned height, u32_t format, u32_t flags)
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{
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pixmap_t *pixmap;
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if( (width == 0) || ( width > 2048)||
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(height == 0) || (height > 2048)||
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(format != PICT_a8r8g8b8))
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return NULL;
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pixmap = alloc_pixmap();
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if( pixmap )
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{
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void *raw;
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int pitch;
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pixmap->width = width;
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pixmap->height = height;
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pixmap->format = format;
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pixmap->flags = flags;
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if( (srv_hw2d != 0) &&
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( (flags & PX_MEM_MASK)==PX_MEM_LOCAL) )
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{
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ioctl_t io;
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io.handle = srv_hw2d;
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io.io_code = PX_CREATE;
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io.input = pixmap;
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io.inp_size = 7;
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io.output = NULL;
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io.out_size = 0;
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if (call_service(&io)==ERR_OK)
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return pixmap;
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else
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{
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free_pixmap(pixmap) ;
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return NULL;
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}
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}
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else
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{
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/*
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Only system memory
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*/
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pixmap->flags &= ~PX_MEM_MASK;
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pitch = ((width+8)&~8)*4;
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raw = UserAlloc(pitch * height);
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if (! raw)
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{
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free_pixmap(pixmap);
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return NULL;
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};
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pixmap->pitch = pitch;
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pixmap->mapped = raw;
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};
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return pixmap;
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};
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return NULL;
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};
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int DestroyPixmap( pixmap_t *pixmap)
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{
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int retval = ERR_OK;
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if(pixmap == (pixmap_t*)-1)
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return ERR_PARAM;
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if( (srv_hw2d != 0) &&
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( (pixmap->flags & PX_MEM_MASK)==PX_MEM_LOCAL) )
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{
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int retval;
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ioctl_t io;
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io.handle = srv_hw2d;
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io.io_code = PX_DESTROY;
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io.input = pixmap;
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io.inp_size = 7;
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io.output = NULL;
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io.out_size = 0;
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retval = call_service(&io);
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}
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else
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{
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UserFree(pixmap->mapped);
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pixmap->pitch = 0;
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pixmap->mapped = 0;
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pixmap->handle = 0;
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};
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free_pixmap(pixmap);
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return retval;
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};
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void* LockPixmap(pixmap_t *pixmap)
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{
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if(pixmap == (pixmap_t*)-1)
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return scrn_pixmap.mapped;
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else
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return pixmap->mapped;
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}
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int UnlockPixmap(pixmap_t *pixmap)
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{
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return ERR_OK;
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};
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int GetPixmapPitch(pixmap_t *pixmap)
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{
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if(pixmap == (pixmap_t*)-1)
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return scrn_pixmap.pitch;
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else
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return pixmap->pitch;
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};
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