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added s/w alpha buffer clearing

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This commit is contained in:
Brian Paul 2001-03-01 00:05:05 +00:00
parent b4203c1c49
commit d89c87ac40
1 changed files with 8 additions and 1 deletions
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9
src/mesa/drivers/x11/xm_dd.c
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@ -1,4 +1,4 @@
/* $Id: xm_dd.c,v 1.15 2001/02/19 20:01:42 brianp Exp $ */
/* $Id: xm_dd.c,v 1.16 2001/03/01 00:05:05 brianp Exp $ */
/*
* Mesa 3-D graphics library
@ -38,6 +38,7 @@
#include "xmesaP.h"
#include "array_cache/acache.h"
#include "swrast/swrast.h"
#include "swrast/s_alphabuf.h"
#include "swrast_setup/swrast_setup.h"
#include "tnl/tnl.h"
@ -748,6 +749,12 @@ clear_buffers( GLcontext *ctx, GLbitfield mask,
const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
const GLuint *colorMask = (GLuint *) &ctx->Color.ColorMask;
if ((mask & (DD_FRONT_LEFT_BIT | DD_FRONT_RIGHT_BIT)) &&
xmesa->xm_buffer->gl_buffer->UseSoftwareAlphaBuffers &&
ctx->Color.ColorMask[ACOMP]) {
_mesa_clear_alpha_buffers(ctx);
}
/* we can't handle color or index masking */
if (*colorMask == 0xffffffff && ctx->Color.IndexMask == 0xffffffff) {
if (mask & DD_FRONT_LEFT_BIT) {