static struct pipe_resource *
llvmpipe_resource_create(struct pipe_screen *_screen,
const struct pipe_resource *templat)
{
struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
struct llvmpipe_resource *lpr = CALLOC_STRUCT(llvmpipe_resource);
if (!lpr)
return NULL;
lpr->base = *templat;
pipe_reference_init(&lpr->base.reference, 1);
lpr->base.screen = &screen->base;
/* assert(lpr->base.bind); */
if (resource_is_texture(&lpr->base)) {
if (lpr->base.bind & PIPE_BIND_DISPLAY_TARGET) {
/* displayable surface */
if (!llvmpipe_displaytarget_layout(screen, lpr))
goto fail;
assert(lpr->layout[0][0] == LP_TEX_LAYOUT_NONE);
}
else {
/* texture map */
if (!llvmpipe_texture_layout(screen, lpr))
goto fail;
assert(lpr->layout[0][0] == LP_TEX_LAYOUT_NONE);
}
assert(lpr->layout[0]);
}
else {
/* other data (vertex buffer, const buffer, etc) */
const enum pipe_format format = templat->format;
const uint w = templat->width0 / util_format_get_blockheight(format);
/* XXX buffers should only have one dimension, those values should be 1 */
const uint h = templat->height0 / util_format_get_blockwidth(format);
const uint d = templat->depth0;
const uint bpp = util_format_get_blocksize(format);
const uint bytes = w * h * d * bpp;
lpr->data = align_malloc(bytes, 16);
if (!lpr->data)
goto fail;
memset(lpr->data, 0, bytes);
}
lpr->id = id_counter++;
#ifdef DEBUG
insert_at_tail(&resource_list, lpr);
#endif
return &lpr->base;
fail:
FREE(lpr);
return NULL;
}
/**
* Check the size of the texture specified by 'res'.
* \return TRUE if OK, FALSE if too large.
*/
static boolean
llvmpipe_can_create_resource(struct pipe_screen *screen,
const struct pipe_resource *res)
{
struct llvmpipe_resource lpr;
memset(&lpr, 0, sizeof(lpr));
lpr.base = *res;
return llvmpipe_texture_layout(llvmpipe_screen(screen), &lpr);
}
static struct pipe_resource *
llvmpipe_resource_create(struct pipe_screen *_screen,
const struct pipe_resource *templat)
{
struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
struct llvmpipe_resource *lpr = CALLOC_STRUCT(llvmpipe_resource);
if (!lpr)
return NULL;
lpr->base = *templat;
pipe_reference_init(&lpr->base.reference, 1);
lpr->base.screen = &screen->base;
/* assert(lpr->base.bind); */
if (llvmpipe_resource_is_texture(&lpr->base)) {
if (lpr->base.bind & (PIPE_BIND_DISPLAY_TARGET |
PIPE_BIND_SCANOUT |
PIPE_BIND_SHARED)) {
/* displayable surface */
if (!llvmpipe_displaytarget_layout(screen, lpr))
goto fail;
}
else {
/* texture map */
if (!llvmpipe_texture_layout(screen, lpr))
goto fail;
}
}
else {
/* other data (vertex buffer, const buffer, etc) */
const uint bytes = templat->width0;
assert(util_format_get_blocksize(templat->format) == 1);
assert(templat->height0 == 1);
assert(templat->depth0 == 1);
assert(templat->last_level == 0);
/*
* Reserve some extra storage since if we'd render to a buffer we
* read/write always LP_RASTER_BLOCK_SIZE pixels, but the element
* offset doesn't need to be aligned to LP_RASTER_BLOCK_SIZE.
*/
lpr->data = align_malloc(bytes + (LP_RASTER_BLOCK_SIZE - 1) * 4 * sizeof(float), 64);
/*
* buffers don't really have stride but it's probably safer
* (for code doing same calculations for buffers and textures)
* to put something sane in there.
*/
lpr->row_stride[0] = bytes;
if (!lpr->data)
goto fail;
memset(lpr->data, 0, bytes);
}
lpr->id = id_counter++;
#ifdef DEBUG
insert_at_tail(&resource_list, lpr);
#endif
return &lpr->base;
fail:
FREE(lpr);
return NULL;
}
