From a1886d539158fcc692d0d45985465be8e4bbe077 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Fri, 5 Sep 2008 10:11:22 -0600 Subject: softpipe: convert clear color to surface format if needed --- src/gallium/drivers/softpipe/sp_clear.c | 31 ++++++++++++++++++++++++++++++- 1 file changed, 30 insertions(+), 1 deletion(-) (limited to 'src/gallium/drivers/softpipe/sp_clear.c') diff --git a/src/gallium/drivers/softpipe/sp_clear.c b/src/gallium/drivers/softpipe/sp_clear.c index 12367068917..dfa46c9fb70 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" @@ -38,9 +39,29 @@ #include "sp_tile_cache.h" +/** + * 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; } } -- cgit v1.2.3