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clearing depth buffer failed when clearing front color buffer

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This commit is contained in:
Brian Paul
2000-02-06 19:29:48 +00:00
parent d4ce76275d
commit b79d289bde
1 changed files with 19 additions and 17 deletions
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src/mesa/drivers/glide/fxdd.c
+19 -17
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@@ -178,9 +178,9 @@ static GLbitfield fxDDClear(GLcontext *ctx, GLbitfield mask, GLboolean all,
GLbitfield softwareMask = mask & (DD_STENCIL_BIT | DD_ACCUM_BIT);
GLbitfield newMask = mask & ~(DD_STENCIL_BIT | DD_ACCUM_BIT);
if (MESA_VERBOSE&VERBOSE_DRIVER) {
fprintf(stderr,"fxmesa: fxDDClear(%d,%d,%d,%d)\n",x,y,width,height);
fprintf(stderr,"fxmesa: fxDDClear(%d,%d,%d,%d)\n", (int) x, (int) y,
(int) width, (int) height);
}
if (mask == (DD_BACK_LEFT_BIT | DD_DEPTH_BIT)
@@ -209,6 +209,20 @@ static GLbitfield fxDDClear(GLcontext *ctx, GLbitfield mask, GLboolean all,
if (newMask & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT)) {
if (newMask & DD_FRONT_LEFT_BIT) {
if (mask & DD_DEPTH_BIT) {
/* XXX it appears that the depth buffer isn't cleared when
* glRenderBuffer(GR_BUFFER_FRONTBUFFER) is set.
* This is a work-around/
*/
FX_grRenderBuffer(GR_BUFFER_BACKBUFFER);
FX_grColorMask(FXFALSE,FXFALSE);
FX_grBufferClear(fxMesa->clearC, fxMesa->clearA,
(FxU16)(ctx->Depth.Clear*0xffff));
FX_grColorMask(ctx->Color.ColorMask[RCOMP] ||
ctx->Color.ColorMask[GCOMP] ||
ctx->Color.ColorMask[BCOMP],
ctx->Color.ColorMask[ACOMP] && fxMesa->haveAlphaBuffer);
}
FX_grRenderBuffer(GR_BUFFER_FRONTBUFFER);
FX_grBufferClear(fxMesa->clearC, fxMesa->clearA,
(FxU16)(ctx->Depth.Clear*0xffff));
@@ -254,7 +268,7 @@ static GLboolean fxDDSetDrawBuffer(GLcontext *ctx, GLenum mode )
fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
if (MESA_VERBOSE&VERBOSE_DRIVER) {
fprintf(stderr,"fxmesa: fxDDSetBuffer(%x)\n",mode);
fprintf(stderr,"fxmesa: fxDDSetBuffer(%x)\n", (int) mode);
}
if (mode == GL_FRONT_LEFT) {
@@ -282,7 +296,7 @@ static void fxDDSetReadBuffer(GLcontext *ctx, GLframebuffer *buffer,
(void) buffer;
if (MESA_VERBOSE&VERBOSE_DRIVER) {
fprintf(stderr,"fxmesa: fxDDSetBuffer(%x)\n",mode);
fprintf(stderr,"fxmesa: fxDDSetBuffer(%x)\n", (int) mode);
}
if (mode == GL_FRONT_LEFT) {
@@ -455,7 +469,7 @@ static GLint fxDDGetParameteri(const GLcontext *ctx, GLint param)
case DD_HAVE_HARDWARE_FOG:
return 1;
default:
fprintf(stderr,"fx Driver: internal error in fxDDGetParameteri(): %x\n",param);
fprintf(stderr,"fx Driver: internal error in fxDDGetParameteri(): %x\n", (int) param);
fxCloseHardware();
exit(-1);
return 0;
@@ -674,18 +688,6 @@ void fxDDInitExtensions( GLcontext *ctx )
/************************************************************************/
/************************************************************************/
/* This is a no-op, since the z-buffer is in hardware */
static void fxAllocDepthBuffer(GLcontext *ctx)
{
if (MESA_VERBOSE&VERBOSE_DRIVER) {
fprintf(stderr,"fxmesa: fxAllocDepthBuffer()\n");
}
}
/************************************************************************/
/************************************************************************/
/************************************************************************/
/* Check if the hardware supports the current context
*
* Performs similar work to fxDDChooseRenderState() - should be merged.