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-rw-r--r--src/mesa/drivers/dri/i965/brw_blorp_blit.cpp26
1 files changed, 12 insertions, 14 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
index f45bbbf4315..3615b097cef 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
+++ b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
@@ -184,10 +184,19 @@ formats_match(GLbitfield buffer_bit, struct intel_renderbuffer *src_irb,
gl_format src_format = find_miptree(buffer_bit, src_irb)->format;
gl_format dst_format = find_miptree(buffer_bit, dst_irb)->format;
- return _mesa_get_srgb_format_linear(src_format) ==
- _mesa_get_srgb_format_linear(dst_format);
-}
+ gl_format linear_src_format = _mesa_get_srgb_format_linear(src_format);
+ gl_format linear_dst_format = _mesa_get_srgb_format_linear(dst_format);
+ /* Normally, we require the formats to be equal. However, we also support
+ * blitting from ARGB to XRGB (discarding alpha), and from XRGB to ARGB
+ * (overriding alpha to 1.0 via blending).
+ */
+ return linear_src_format == linear_dst_format ||
+ (linear_src_format == MESA_FORMAT_XRGB8888 &&
+ linear_dst_format == MESA_FORMAT_ARGB8888) ||
+ (linear_src_format == MESA_FORMAT_ARGB8888 &&
+ linear_dst_format == MESA_FORMAT_XRGB8888);
+}
static bool
try_blorp_blit(struct intel_context *intel,
@@ -1730,17 +1739,6 @@ brw_blorp_blit_params::brw_blorp_blit_params(struct brw_context *brw,
src.set(brw, src_mt, src_level, src_layer);
dst.set(brw, dst_mt, dst_level, dst_layer);
- /* If we are blitting from sRGB to linear or vice versa, we still want the
- * blit to be a direct copy, so we need source and destination to use the
- * same format. However, we want the destination sRGB/linear state to be
- * correct (so that sRGB blending is used when doing an MSAA resolve to an
- * sRGB surface, and linear blending is used when doing an MSAA resolve to
- * a linear surface). Since blorp blits don't support any format
- * conversion (except between sRGB and linear), we can accomplish this by
- * simply setting up the source to use the same format as the destination.
- */
- assert(_mesa_get_srgb_format_linear(src_mt->format) ==
- _mesa_get_srgb_format_linear(dst_mt->format));
src.brw_surfaceformat = dst.brw_surfaceformat;
use_wm_prog = true;