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util/u_format: move utility function from r600g

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We need this for radeonsi, and it might be useful for other drivers,
too.
This commit is contained in:
Grigori Goronzy 2014-06-04 18:54:36 +02:00 • committed by Christian König
parent 700100d94b
commit f5dafc156a
3 changed files with 15 additions and 11 deletions
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11
src/gallium/auxiliary/util/u_format.c
View file

@ -187,6 +187,17 @@ util_format_is_intensity(enum pipe_format format)
return FALSE;
}
boolean
util_format_is_subsampled_422(enum pipe_format format)
{
const struct util_format_description *desc =
util_format_description(format);
return desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED &&
desc->block.width == 2 &&
desc->block.height == 1 &&
desc->block.bits == 32;
}
boolean
util_format_is_supported(enum pipe_format format, unsigned bind)

3
src/gallium/auxiliary/util/u_format.h
View file

@ -663,6 +663,9 @@ util_format_is_luminance_alpha(enum pipe_format format);
boolean
util_format_is_intensity(enum pipe_format format);
boolean
util_format_is_subsampled_422(enum pipe_format format);
boolean
util_format_is_pure_integer(enum pipe_format format);

12
src/gallium/drivers/r600/r600_blit.c
View file

@ -563,16 +563,6 @@ static void r600_clear_buffer(struct pipe_context *ctx, struct pipe_resource *ds
}
}
static bool util_format_is_subsampled_2x1_32bpp(enum pipe_format format)
{
const struct util_format_description *desc = util_format_description(format);
return desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED &&
desc->block.width == 2 &&
desc->block.height == 1 &&
desc->block.bits == 32;
}
static void r600_resource_copy_region(struct pipe_context *ctx,
struct pipe_resource *dst,
unsigned dst_level,
@ -647,7 +637,7 @@ static void r600_resource_copy_region(struct pipe_context *ctx,
src_force_level = src_level;
} else if (!util_blitter_is_copy_supported(rctx->blitter, dst, src)) {
if (util_format_is_subsampled_2x1_32bpp(src->format)) {
if (util_format_is_subsampled_422(src->format)) {
src_templ.format = PIPE_FORMAT_R8G8B8A8_UINT;
dst_templ.format = PIPE_FORMAT_R8G8B8A8_UINT;