From 258d20152abe34243c37c5fbf66ccf8897e454f9 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Wed, 7 Nov 2018 14:55:20 +0100 Subject: [PATCH] st/xa: Support higher color precision for solid pictures The only solid fill picture type we supported only had 8 bit color channels. Add a new solid picture type that supports float channels. Signed-off-by: Thomas Hellstrom Reviewed-by: Brian Paul --- src/gallium/state_trackers/xa/xa_composite.c | 106 ++++++++++++++----- src/gallium/state_trackers/xa/xa_composite.h | 20 +++- 2 files changed, 100 insertions(+), 26 deletions(-) diff --git a/src/gallium/state_trackers/xa/xa_composite.c b/src/gallium/state_trackers/xa/xa_composite.c index 8de51b34d96..b0746327522 100644 --- a/src/gallium/state_trackers/xa/xa_composite.c +++ b/src/gallium/state_trackers/xa/xa_composite.c @@ -200,6 +200,27 @@ xa_is_filter_accelerated(struct xa_picture *pic) return 1; } +/** + * xa_src_pict_is_accelerated - Check whether we support acceleration + * of the given src_pict type + * + * \param src_pic[in]: Pointer to a union xa_source_pict to check. + * + * \returns TRUE if accelerated, FALSE otherwise. + */ +static boolean +xa_src_pict_is_accelerated(const union xa_source_pict *src_pic) +{ + if (!src_pic) + return TRUE; + + if (src_pic->type == xa_src_pict_solid_fill || + src_pic->type == xa_src_pict_float_solid_fill) + return TRUE; + + return FALSE; +} + XA_EXPORT int xa_composite_check_accelerated(const struct xa_composite *comp) { @@ -218,7 +239,8 @@ xa_composite_check_accelerated(const struct xa_composite *comp) return -XA_ERR_INVAL; } - if (src_pic->src_pict &&src_pic->src_pict->type != xa_src_pict_solid_fill) + if (!xa_src_pict_is_accelerated(src_pic->src_pict) || + (mask_pic && !xa_src_pict_is_accelerated(mask_pic->src_pict))) return -XA_ERR_INVAL; if (!blend_for_op(&blend, comp->op, comp->src, comp->mask, comp->dst)) @@ -307,6 +329,52 @@ xa_src_in_mask(float src[4], const float mask[4]) src[3] *= mask[3]; } +/** + * xa_handle_src_pict - Set up xa_context state and fragment shader + * input based on scr_pict type + * + * \param ctx[in, out]: Pointer to the xa context. + * \param src_pict[in]: Pointer to the union xa_source_pict to consider. + * \param is_mask[in]: Whether we're considering a mask picture. + * + * \returns TRUE if succesful, FALSE otherwise. + * + * This function computes some xa_context state used to determine whether + * to upload the solid color and also the solid color itself used as an input + * to the fragment shader. + */ +static boolean +xa_handle_src_pict(struct xa_context *ctx, + const union xa_source_pict *src_pict, + boolean is_mask) +{ + float solid_color[4]; + + switch(src_pict->type) { + case xa_src_pict_solid_fill: + xa_pixel_to_float4(src_pict->solid_fill.color, solid_color); + break; + case xa_src_pict_float_solid_fill: + memcpy(solid_color, src_pict->float_solid_fill.color, + sizeof(solid_color)); + break; + default: + return FALSE; + } + + if (is_mask && ctx->has_solid_src) + xa_src_in_mask(ctx->solid_color, solid_color); + else + memcpy(ctx->solid_color, solid_color, sizeof(solid_color)); + + if (is_mask) + ctx->has_solid_mask = TRUE; + else + ctx->has_solid_src = TRUE; + + return TRUE; +} + static int bind_shaders(struct xa_context *ctx, const struct xa_composite *comp) { @@ -326,13 +394,10 @@ bind_shaders(struct xa_context *ctx, const struct xa_composite *comp) vs_traits |= VS_COMPOSITE; if (src_pic->src_pict) { - if (src_pic->src_pict->type == xa_src_pict_solid_fill) { - fs_traits |= FS_SRC_SRC; - vs_traits |= VS_SRC_SRC; - xa_pixel_to_float4(src_pic->src_pict->solid_fill.color, - ctx->solid_color); - ctx->has_solid_src = TRUE; - } + if (!xa_handle_src_pict(ctx, src_pic->src_pict, false)) + return -XA_ERR_INVAL; + fs_traits |= FS_SRC_SRC; + vs_traits |= VS_SRC_SRC; } else fs_traits |= picture_format_fixups(src_pic, 0); } @@ -341,22 +406,15 @@ bind_shaders(struct xa_context *ctx, const struct xa_composite *comp) vs_traits |= VS_MASK; fs_traits |= FS_MASK; if (mask_pic->src_pict) { - if (mask_pic->src_pict->type == xa_src_pict_solid_fill) { - if (ctx->has_solid_src) { - float solid_mask[4]; - - xa_pixel_to_float4(mask_pic->src_pict->solid_fill.color, - solid_mask); - xa_src_in_mask(ctx->solid_color, solid_mask); - vs_traits &= ~(VS_MASK); - fs_traits &= ~(FS_MASK); - } else { - xa_pixel_to_float4(mask_pic->src_pict->solid_fill.color, - ctx->solid_color); - vs_traits |= VS_MASK_SRC; - fs_traits |= FS_MASK_SRC; - } - ctx->has_solid_mask = TRUE; + if (!xa_handle_src_pict(ctx, mask_pic->src_pict, true)) + return -XA_ERR_INVAL; + + if (ctx->has_solid_src) { + vs_traits &= ~VS_MASK; + fs_traits &= ~FS_MASK; + } else { + vs_traits |= VS_MASK_SRC; + fs_traits |= FS_MASK_SRC; } } else { if (mask_pic->wrap == xa_wrap_clamp_to_border && diff --git a/src/gallium/state_trackers/xa/xa_composite.h b/src/gallium/state_trackers/xa/xa_composite.h index d16ef89ebd8..7e3737a63d2 100644 --- a/src/gallium/state_trackers/xa/xa_composite.h +++ b/src/gallium/state_trackers/xa/xa_composite.h @@ -74,18 +74,34 @@ enum xa_composite_wrap { * Src picture types. */ enum xa_composite_src_pict_type { - xa_src_pict_solid_fill + xa_src_pict_solid_fill, + xa_src_pict_float_solid_fill }; + +/* + * struct xa_pict_solid_fill - Description of a solid_fill picture + * Deprecated. Use struct xa_pict_float_solid_fill instead. + */ struct xa_pict_solid_fill { enum xa_composite_src_pict_type type; unsigned int class; uint32_t color; }; +/* + * struct xa_pict_solid_fill - Description of a solid_fill picture + * with color channels represented by floats. + */ +struct xa_pict_float_solid_fill { + enum xa_composite_src_pict_type type; + float color[4]; /* R, G, B, A */ +}; + union xa_source_pict { - unsigned int type; + enum xa_composite_src_pict_type type; struct xa_pict_solid_fill solid_fill; + struct xa_pict_float_solid_fill float_solid_fill; }; struct xa_picture { -- 2.30.2