forked from KolibriOS/kolibrios
99 lines
2.4 KiB
C++
99 lines
2.4 KiB
C++
|
|
int CreatePixmap(pixmap_t *io)
|
|
{
|
|
local_pixmap_t *pixmap;
|
|
|
|
unsigned pitch;
|
|
size_t size;
|
|
|
|
void *local;
|
|
|
|
if( (io->width == 0) || (io->width > 2048)||
|
|
(io->height == 0)|| (io->height > 2048))
|
|
{
|
|
dbgprintf("Invalid pixmap size w:%d h:%d\n", io->width,io->height);
|
|
return ERR_PARAM;
|
|
};
|
|
|
|
pitch = ((io->width+15)&~15)*4;
|
|
size = pitch*io->height;
|
|
|
|
dbgprintf("pitch = %d\n", pitch);
|
|
|
|
local = rhd_mem_alloc(&rhd,RHD_MEM_FB,size) ;
|
|
if ( !local)
|
|
{
|
|
dbgprintf("Not enough memory for pixmap\n");
|
|
return ERR_PARAM;
|
|
};
|
|
|
|
pixmap = malloc(sizeof(local_pixmap_t));
|
|
if(!pixmap)
|
|
{
|
|
rhd_mem_free(&rhd, RHD_MEM_FB,local);
|
|
return ERR_PARAM;
|
|
}
|
|
else
|
|
{
|
|
void *mapped;
|
|
|
|
size = (size+4095) & ~ 4095;
|
|
|
|
if (mapped = UserAlloc(size))
|
|
{
|
|
CommitPages(mapped, ((u32_t)local+rhd.LinearAddr)|7|(1<<9), size);
|
|
|
|
io->mapped = mapped;
|
|
io->pitch = pitch;
|
|
io->handle = (u32_t)pixmap;
|
|
|
|
pixmap->width = io->width;
|
|
pixmap->height = io->height;
|
|
pixmap->format = PICT_a8r8g8b8;
|
|
pixmap->flags = io->flags;
|
|
pixmap->pitch = pitch;
|
|
pixmap->mapped = mapped;
|
|
pixmap->pitch_offset = ((pitch/64)<<22)| (((u32_t)local+rhd.fbLocation)>>10);
|
|
pixmap->local = local+rhd.fbLocation;
|
|
|
|
dbgprintf("pixmap.pitch_offset: %x\n", pixmap->pitch_offset);
|
|
dbgprintf("width: %d height: %d\n",pixmap->width,pixmap->height );
|
|
dbgprintf("map at %x\n", pixmap->mapped);
|
|
|
|
return ERR_OK;
|
|
};
|
|
rhd_mem_free(&rhd, RHD_MEM_FB,local);
|
|
free(pixmap);
|
|
};
|
|
return ERR_PARAM;
|
|
};
|
|
|
|
|
|
int DestroyPixmap( pixmap_t *io )
|
|
{
|
|
local_pixmap_t *pixmap;
|
|
size_t size;
|
|
|
|
dbgprintf("Destroy pixmap %x\n", io->handle);
|
|
|
|
if(io->handle == -1)
|
|
return ERR_PARAM;
|
|
else
|
|
pixmap = (local_pixmap_t*)io->handle;
|
|
|
|
size = (pixmap->pitch*pixmap->height+4095) & ~ 4095;
|
|
|
|
UnmapPages(pixmap->mapped, size);
|
|
UserFree(pixmap->mapped);
|
|
|
|
rhd_mem_free(&rhd,RHD_MEM_FB,pixmap->local-rhd.fbLocation);
|
|
free(pixmap);
|
|
|
|
io->format = 0;
|
|
io->pitch = 0;
|
|
io->mapped = NULL;
|
|
io->handle = 0;
|
|
|
|
return ERR_OK;
|
|
};
|