[Mesa-dev] [PATCH 2/3] radeonsi: add sampling of 4:2:2 subsampled textures
Grigori Goronzy
greg at chown.ath.cx
Wed Jun 4 09:54:37 PDT 2014
This makes 4:2:2 video surfaces work in VDPAU.
---
src/gallium/drivers/radeon/r600_texture.c | 5 +-
src/gallium/drivers/radeonsi/si_blit.c | 91 ++++++++++++++++++-------------
src/gallium/drivers/radeonsi/si_state.c | 15 +++++
3 files changed, 71 insertions(+), 40 deletions(-)
diff --git a/src/gallium/drivers/radeon/r600_texture.c b/src/gallium/drivers/radeon/r600_texture.c
index 3a37465..a20b0c8 100644
--- a/src/gallium/drivers/radeon/r600_texture.c
+++ b/src/gallium/drivers/radeon/r600_texture.c
@@ -737,9 +737,8 @@ static unsigned r600_choose_tiling(struct r600_common_screen *rscreen,
* Compressed textures must always be tiled. */
if (!(templ->flags & R600_RESOURCE_FLAG_FORCE_TILING) &&
!util_format_is_compressed(templ->format)) {
- /* Tiling doesn't work with the 422 (SUBSAMPLED) formats on R600-Cayman. */
- if (rscreen->chip_class <= CAYMAN &&
- desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED)
+ /* Tiling doesn't work with the 422 (SUBSAMPLED) formats on R600+. */
+ if (desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED)
return RADEON_SURF_MODE_LINEAR_ALIGNED;
/* Cursors are linear on SI.
diff --git a/src/gallium/drivers/radeonsi/si_blit.c b/src/gallium/drivers/radeonsi/si_blit.c
index e02615f..8c3e136 100644
--- a/src/gallium/drivers/radeonsi/si_blit.c
+++ b/src/gallium/drivers/radeonsi/si_blit.c
@@ -548,46 +548,63 @@ static void si_resource_copy_region(struct pipe_context *ctx,
dstx = util_format_get_nblocksx(orig_info[1].format, dstx);
dsty = util_format_get_nblocksy(orig_info[1].format, dsty);
} else if (!util_blitter_is_copy_supported(sctx->blitter, dst, src)) {
- unsigned blocksize = util_format_get_blocksize(src->format);
-
- switch (blocksize) {
- case 1:
- si_change_format(src, src_level, &orig_info[0],
- PIPE_FORMAT_R8_UNORM);
- si_change_format(dst, dst_level, &orig_info[1],
- PIPE_FORMAT_R8_UNORM);
- break;
- case 2:
- si_change_format(src, src_level, &orig_info[0],
- PIPE_FORMAT_R8G8_UNORM);
- si_change_format(dst, dst_level, &orig_info[1],
- PIPE_FORMAT_R8G8_UNORM);
- break;
- case 4:
- si_change_format(src, src_level, &orig_info[0],
- PIPE_FORMAT_R8G8B8A8_UNORM);
- si_change_format(dst, dst_level, &orig_info[1],
- PIPE_FORMAT_R8G8B8A8_UNORM);
- break;
- case 8:
- si_change_format(src, src_level, &orig_info[0],
- PIPE_FORMAT_R16G16B16A16_UINT);
- si_change_format(dst, dst_level, &orig_info[1],
- PIPE_FORMAT_R16G16B16A16_UINT);
- break;
- case 16:
+ if (util_format_is_subsampled_422(src->format)) {
+ /* XXX untested */
si_change_format(src, src_level, &orig_info[0],
- PIPE_FORMAT_R32G32B32A32_UINT);
+ PIPE_FORMAT_R8G8B8A8_UINT);
si_change_format(dst, dst_level, &orig_info[1],
- PIPE_FORMAT_R32G32B32A32_UINT);
- break;
- default:
- fprintf(stderr, "Unhandled format %s with blocksize %u\n",
- util_format_short_name(src->format), blocksize);
- assert(0);
+ PIPE_FORMAT_R8G8B8A8_UINT);
+
+ sbox = *src_box;
+ sbox.x = util_format_get_nblocksx(orig_info[0].format, src_box->x);
+ sbox.width = util_format_get_nblocksx(orig_info[0].format, src_box->width);
+ src_box = &sbox;
+ dstx = util_format_get_nblocksx(orig_info[1].format, dstx);
+
+ restore_orig[0] = TRUE;
+ restore_orig[1] = TRUE;
+ } else {
+ unsigned blocksize = util_format_get_blocksize(src->format);
+
+ switch (blocksize) {
+ case 1:
+ si_change_format(src, src_level, &orig_info[0],
+ PIPE_FORMAT_R8_UNORM);
+ si_change_format(dst, dst_level, &orig_info[1],
+ PIPE_FORMAT_R8_UNORM);
+ break;
+ case 2:
+ si_change_format(src, src_level, &orig_info[0],
+ PIPE_FORMAT_R8G8_UNORM);
+ si_change_format(dst, dst_level, &orig_info[1],
+ PIPE_FORMAT_R8G8_UNORM);
+ break;
+ case 4:
+ si_change_format(src, src_level, &orig_info[0],
+ PIPE_FORMAT_R8G8B8A8_UNORM);
+ si_change_format(dst, dst_level, &orig_info[1],
+ PIPE_FORMAT_R8G8B8A8_UNORM);
+ break;
+ case 8:
+ si_change_format(src, src_level, &orig_info[0],
+ PIPE_FORMAT_R16G16B16A16_UINT);
+ si_change_format(dst, dst_level, &orig_info[1],
+ PIPE_FORMAT_R16G16B16A16_UINT);
+ break;
+ case 16:
+ si_change_format(src, src_level, &orig_info[0],
+ PIPE_FORMAT_R32G32B32A32_UINT);
+ si_change_format(dst, dst_level, &orig_info[1],
+ PIPE_FORMAT_R32G32B32A32_UINT);
+ break;
+ default:
+ fprintf(stderr, "Unhandled format %s with blocksize %u\n",
+ util_format_short_name(src->format), blocksize);
+ assert(0);
+ }
+ restore_orig[0] = TRUE;
+ restore_orig[1] = TRUE;
}
- restore_orig[0] = TRUE;
- restore_orig[1] = TRUE;
}
/* Initialize the surface. */
diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index 19d2b55..cbd51ad 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -1102,6 +1102,19 @@ static uint32_t si_translate_texformat(struct pipe_screen *screen,
}
}
+ if (desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED) {
+ switch (format) {
+ case PIPE_FORMAT_R8G8_B8G8_UNORM:
+ case PIPE_FORMAT_G8R8_B8R8_UNORM:
+ return V_008F14_IMG_DATA_FORMAT_GB_GR;
+ case PIPE_FORMAT_G8R8_G8B8_UNORM:
+ case PIPE_FORMAT_R8G8_R8B8_UNORM:
+ return V_008F14_IMG_DATA_FORMAT_BG_RG;
+ default:
+ goto out_unknown;
+ }
+ }
+
if (desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
if (!enable_s3tc)
@@ -2481,6 +2494,8 @@ static struct pipe_sampler_view *si_create_sampler_view(struct pipe_context *ctx
num_format = V_008F14_IMG_NUM_FORMAT_UNORM;
break;
}
+ } else if (desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED) {
+ num_format = V_008F14_IMG_NUM_FORMAT_UNORM;
} else {
num_format = V_008F14_IMG_NUM_FORMAT_FLOAT;
}
--
1.8.3.2
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