gallium/util: new util_try_blit_via_copy_region() function

Pulled out of the util_try_blit_via_copy_region() function.  Subsequent
changes build on this.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Charmaine Lee <charmainel@vmware.com>
This commit is contained in:
Brian Paul 2016-06-08 14:36:08 -06:00
parent 7988513ac3
commit 5d31ea4b8f
2 changed files with 32 additions and 15 deletions

View File

@ -686,18 +686,9 @@ get_sample_count(const struct pipe_resource *res)
return res->nr_samples ? res->nr_samples : 1;
}
/**
* Try to do a blit using resource_copy_region. The function calls
* resource_copy_region if the blit description is compatible with it.
*
* It returns TRUE if the blit was done using resource_copy_region.
*
* It returns FALSE otherwise and the caller must fall back to a more generic
* codepath for the blit operation. (e.g. by using u_blitter)
*/
boolean
util_try_blit_via_copy_region(struct pipe_context *ctx,
const struct pipe_blit_info *blit)
util_can_blit_via_copy_region(const struct pipe_blit_info *blit)
{
unsigned mask = util_format_get_mask(blit->dst.format);
@ -748,9 +739,32 @@ util_try_blit_via_copy_region(struct pipe_context *ctx,
if (blit->alpha_blend)
return FALSE;
ctx->resource_copy_region(ctx, blit->dst.resource, blit->dst.level,
blit->dst.box.x, blit->dst.box.y, blit->dst.box.z,
blit->src.resource, blit->src.level,
&blit->src.box);
return TRUE;
}
/**
* Try to do a blit using resource_copy_region. The function calls
* resource_copy_region if the blit description is compatible with it.
*
* It returns TRUE if the blit was done using resource_copy_region.
*
* It returns FALSE otherwise and the caller must fall back to a more generic
* codepath for the blit operation. (e.g. by using u_blitter)
*/
boolean
util_try_blit_via_copy_region(struct pipe_context *ctx,
const struct pipe_blit_info *blit)
{
if (util_can_blit_via_copy_region(blit)) {
ctx->resource_copy_region(ctx, blit->dst.resource, blit->dst.level,
blit->dst.box.x, blit->dst.box.y,
blit->dst.box.z,
blit->src.resource, blit->src.level,
&blit->src.box);
return TRUE;
}
else {
return FALSE;
}
}

View File

@ -98,6 +98,9 @@ util_clear_depth_stencil(struct pipe_context *pipe,
unsigned dstx, unsigned dsty,
unsigned width, unsigned height);
boolean
util_can_blit_via_copy_region(const struct pipe_blit_info *blit);
extern boolean
util_try_blit_via_copy_region(struct pipe_context *ctx,
const struct pipe_blit_info *blit);