From 7e2865064916b85243788fc69040bb981f53c4f9 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Wed, 16 Sep 2015 05:53:13 -0700 Subject: [PATCH] st/xa: Use PIPE_FORMAT_R8_UNORM when available XA has been using L8_UNORM for a8 and yuv component surfaces. This commit instead makes XA prefer R8_UNORM since it's assumed to have a higher availability. Also neither of these formats are suitable as destination formats using destination alpha blending, so reject those operations. Signed-off-by: Thomas Hellstrom Reviewed-by: Brian Paul --- src/gallium/state_trackers/xa/xa_composite.c | 40 ++++++++++------------------ src/gallium/state_trackers/xa/xa_tracker.c | 28 +++++++++++++------ 2 files changed, 34 insertions(+), 34 deletions(-) diff --git a/src/gallium/state_trackers/xa/xa_composite.c b/src/gallium/state_trackers/xa/xa_composite.c index 7cfd1e1..e81eeba 100644 --- a/src/gallium/state_trackers/xa/xa_composite.c +++ b/src/gallium/state_trackers/xa/xa_composite.c @@ -78,26 +78,6 @@ static const struct xa_composite_blend xa_blends[] = { 0, 0, PIPE_BLENDFACTOR_ONE, PIPE_BLENDFACTOR_ONE}, }; - -/* - * The alpha value stored in a luminance texture is read by the - * hardware as color. - */ -static unsigned -xa_convert_blend_for_luminance(unsigned factor) -{ - switch(factor) { - case PIPE_BLENDFACTOR_DST_ALPHA: - return PIPE_BLENDFACTOR_DST_COLOR; - case PIPE_BLENDFACTOR_INV_DST_ALPHA: - return PIPE_BLENDFACTOR_INV_DST_COLOR; - default: - break; - } - return factor; -} - - static boolean blend_for_op(struct xa_composite_blend *blend, enum xa_composite_op op, @@ -131,10 +111,16 @@ blend_for_op(struct xa_composite_blend *blend, if (!dst_pic->srf) return supported; - if (dst_pic->srf->tex->format == PIPE_FORMAT_L8_UNORM) { - blend->rgb_src = xa_convert_blend_for_luminance(blend->rgb_src); - blend->rgb_dst = xa_convert_blend_for_luminance(blend->rgb_dst); - } + /* + * None of the hardware formats we might use for dst A8 are + * suitable for dst_alpha blending, since they present the + * alpha channel either in all color channels (L8_UNORM) or + * in the red channel only (R8_UNORM) + */ + if ((dst_pic->srf->tex->format == PIPE_FORMAT_L8_UNORM || + dst_pic->srf->tex->format == PIPE_FORMAT_R8_UNORM) && + blend->alpha_dst) + return FALSE; /* * If there's no dst alpha channel, adjust the blend op so that we'll treat @@ -298,7 +284,8 @@ picture_format_fixups(struct xa_picture *src_pic, ret |= mask ? FS_MASK_SET_ALPHA : FS_SRC_SET_ALPHA; if (src_hw_format == src_pic_format) { - if (src->tex->format == PIPE_FORMAT_L8_UNORM) + if (src->tex->format == PIPE_FORMAT_L8_UNORM || + src->tex->format == PIPE_FORMAT_R8_UNORM) return ((mask) ? FS_MASK_LUMINANCE : FS_SRC_LUMINANCE); return ret; @@ -372,7 +359,8 @@ bind_shaders(struct xa_context *ctx, const struct xa_composite *comp) fs_traits |= picture_format_fixups(mask_pic, 1); } - if (ctx->srf->format == PIPE_FORMAT_L8_UNORM) + if (ctx->srf->format == PIPE_FORMAT_L8_UNORM || + ctx->srf->format == PIPE_FORMAT_R8_UNORM) fs_traits |= FS_DST_LUMINANCE; shader = xa_shaders_get(ctx->shaders, vs_traits, fs_traits); diff --git a/src/gallium/state_trackers/xa/xa_tracker.c b/src/gallium/state_trackers/xa/xa_tracker.c index 2944b16..4fdbdc9 100644 --- a/src/gallium/state_trackers/xa/xa_tracker.c +++ b/src/gallium/state_trackers/xa/xa_tracker.c @@ -82,7 +82,7 @@ static const unsigned int stype_bind[XA_LAST_SURFACE_TYPE] = { 0, }; static struct xa_format_descriptor -xa_get_pipe_format(enum xa_formats xa_format) +xa_get_pipe_format(struct xa_tracker *xa, enum xa_formats xa_format) { struct xa_format_descriptor fdesc; @@ -102,7 +102,13 @@ xa_get_pipe_format(enum xa_formats xa_format) fdesc.format = PIPE_FORMAT_B5G5R5A1_UNORM; break; case xa_format_a8: - fdesc.format = PIPE_FORMAT_L8_UNORM; + if (xa->screen->is_format_supported(xa->screen, PIPE_FORMAT_R8_UNORM, + PIPE_TEXTURE_2D, 0, + stype_bind[xa_type_a] | + PIPE_BIND_RENDER_TARGET)) + fdesc.format = PIPE_FORMAT_R8_UNORM; + else + fdesc.format = PIPE_FORMAT_L8_UNORM; break; case xa_format_z24: fdesc.format = PIPE_FORMAT_Z24X8_UNORM; @@ -126,7 +132,12 @@ xa_get_pipe_format(enum xa_formats xa_format) fdesc.format = PIPE_FORMAT_S8_UINT_Z24_UNORM; break; case xa_format_yuv8: - fdesc.format = PIPE_FORMAT_L8_UNORM; + if (xa->screen->is_format_supported(xa->screen, PIPE_FORMAT_R8_UNORM, + PIPE_TEXTURE_2D, 0, + stype_bind[xa_type_yuv_component])) + fdesc.format = PIPE_FORMAT_R8_UNORM; + else + fdesc.format = PIPE_FORMAT_L8_UNORM; break; default: fdesc.xa_format = xa_format_unknown; @@ -184,7 +195,8 @@ xa_tracker_create(int drm_fd) for (i = 0; i < num_preferred[stype]; ++i) { xa_format = preferred[stype][i]; - struct xa_format_descriptor fdesc = xa_get_pipe_format(xa_format); + struct xa_format_descriptor fdesc = + xa_get_pipe_format(xa, xa_format); if (xa->screen->is_format_supported(xa->screen, fdesc.format, PIPE_TEXTURE_2D, 0, bind)) { @@ -259,7 +271,7 @@ xa_get_format_stype_depth(struct xa_tracker *xa, int found = 0; for (i = xa->format_map[stype][0]; i <= xa->format_map[stype][1]; ++i) { - fdesc = xa_get_pipe_format(xa->supported_formats[i]); + fdesc = xa_get_pipe_format(xa, xa->supported_formats[i]); if (fdesc.xa_format != xa_format_unknown && xa_format_depth(fdesc.xa_format) == depth) { found = 1; @@ -277,7 +289,7 @@ XA_EXPORT int xa_format_check_supported(struct xa_tracker *xa, enum xa_formats xa_format, unsigned int flags) { - struct xa_format_descriptor fdesc = xa_get_pipe_format(xa_format); + struct xa_format_descriptor fdesc = xa_get_pipe_format(xa, xa_format); unsigned int bind; if (fdesc.xa_format == xa_format_unknown) @@ -328,7 +340,7 @@ surface_create(struct xa_tracker *xa, if (xa_format == xa_format_unknown) fdesc = xa_get_format_stype_depth(xa, stype, depth); else - fdesc = xa_get_pipe_format(xa_format); + fdesc = xa_get_pipe_format(xa, xa_format); if (fdesc.xa_format == xa_format_unknown) return NULL; @@ -440,7 +452,7 @@ xa_surface_redefine(struct xa_surface *srf, if (xa_format == xa_format_unknown) fdesc = xa_get_format_stype_depth(xa, stype, depth); else - fdesc = xa_get_pipe_format(xa_format); + fdesc = xa_get_pipe_format(xa, xa_format); if (width == template->width0 && height == template->height0 && template->format == fdesc.format && -- 2.7.4