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authorBrian Paul <brian.paul@tungstengraphics.com>2008-09-05 10:11:22 -0600
committerBrian Paul <brian.paul@tungstengraphics.com>2008-09-05 10:11:22 -0600
commita1886d539158fcc692d0d45985465be8e4bbe077 (patch)
tree5c34764805b7f6d1f3b0e9d8e0ad9d8806feb7bc /src/gallium/drivers/softpipe
parent79200c908790238374c6059b9f781c9873584d95 (diff)
softpipe: convert clear color to surface format if needed
Diffstat (limited to 'src/gallium/drivers/softpipe')
-rw-r--r--src/gallium/drivers/softpipe/sp_clear.c31
1 files changed, 30 insertions, 1 deletions
diff --git a/src/gallium/drivers/softpipe/sp_clear.c b/src/gallium/drivers/softpipe/sp_clear.c
index 1236706891..dfa46c9fb7 100644
--- a/src/gallium/drivers/softpipe/sp_clear.c
+++ b/src/gallium/drivers/softpipe/sp_clear.c
@@ -31,6 +31,7 @@
#include "pipe/p_defines.h"
+#include "util/u_pack_color.h"
#include "sp_clear.h"
#include "sp_context.h"
#include "sp_surface.h"
@@ -39,8 +40,28 @@
/**
+ * Convert packed pixel from one format to another.
+ */
+static unsigned
+convert_color(enum pipe_format srcFormat, unsigned srcColor,
+ enum pipe_format dstFormat)
+{
+ ubyte r, g, b, a;
+ unsigned dstColor;
+
+ util_unpack_color_ub(srcFormat, &srcColor, &r, &g, &b, &a);
+ util_pack_color_ub(r, g, b, a, dstFormat, &dstColor);
+
+ return dstColor;
+}
+
+
+
+/**
* Clear the given surface to the specified value.
* No masking, no scissor (clear entire buffer).
+ * Note: when clearing a color buffer, the clearValue is always
+ * encoded as PIPE_FORMAT_A8R8G8B8_UNORM.
*/
void
softpipe_clear(struct pipe_context *pipe, struct pipe_surface *ps,
@@ -66,7 +87,15 @@ softpipe_clear(struct pipe_context *pipe, struct pipe_surface *ps,
for (i = 0; i < softpipe->framebuffer.num_cbufs; i++) {
if (ps == sp_tile_cache_get_surface(softpipe->cbuf_cache[i])) {
- sp_tile_cache_clear(softpipe->cbuf_cache[i], clearValue);
+ unsigned cv;
+ if (ps->format != PIPE_FORMAT_A8R8G8B8_UNORM) {
+ cv = convert_color(PIPE_FORMAT_A8R8G8B8_UNORM, clearValue,
+ ps->format);
+ }
+ else {
+ cv = clearValue;
+ }
+ sp_tile_cache_clear(softpipe->cbuf_cache[i], cv);
softpipe->framebuffer.cbufs[i]->status = PIPE_SURFACE_STATUS_CLEAR;
}
}