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cleanup and bugfixes for fxDDClear()

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This commit is contained in:
Daniel Borca
2004-09-13 09:31:28 +00:00
parent 802632e62d
commit b66f674410
1 changed files with 39 additions and 78 deletions
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117
src/mesa/drivers/glide/fxdd.c
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@@ -160,26 +160,14 @@ static void fxDDClear( GLcontext *ctx,
(int) x, (int) y, (int) width, (int) height );
}
/* Need this check to respond to glScissor and clipping updates */
/* should also take care of FX_NEW_COLOR_MASK, FX_NEW_STENCIL, depth? */
if (fxMesa->new_state & FX_NEW_SCISSOR) {
/* we can't clear accum buffers nor stereo */
mask &= ~(DD_ACCUM_BIT | DD_FRONT_RIGHT_BIT | DD_BACK_RIGHT_BIT);
/* Need this check to respond to certain HW updates */
if (fxMesa->new_state & (FX_NEW_SCISSOR | FX_NEW_COLOR_MASK)) {
fxSetupScissor(ctx);
fxMesa->new_state &= ~FX_NEW_SCISSOR;
}
/* we can't clear accum buffers */
mask &= ~(DD_ACCUM_BIT);
/*
* As per GL spec, stencil masking should be obeyed when clearing
*/
if (mask & DD_STENCIL_BIT) {
if (!fxMesa->haveHwStencil || fxMesa->unitsState.stencilWriteMask != 0xff) {
/* Napalm seems to have trouble with stencil write masks != 0xff */
/* do stencil clear in software */
softwareMask |= DD_STENCIL_BIT;
mask &= ~(DD_STENCIL_BIT);
}
fxSetupColorMask(ctx);
fxMesa->new_state &= ~(FX_NEW_SCISSOR | FX_NEW_COLOR_MASK);
}
/*
@@ -202,7 +190,7 @@ static void fxDDClear( GLcontext *ctx,
*/
BEGIN_BOARD_LOCK();
if (mask & DD_STENCIL_BIT) {
fxMesa->Glide.grStencilMaskExt(0xff /*fxMesa->unitsState.stencilWriteMask*/);
fxMesa->Glide.grStencilMaskExt(fxMesa->unitsState.stencilWriteMask);
/* set stencil ref value = desired clear value */
fxMesa->Glide.grStencilFuncExt(GR_CMP_ALWAYS, clearS, 0xff);
fxMesa->Glide.grStencilOpExt(GR_STENCILOP_REPLACE,
@@ -213,6 +201,9 @@ static void fxDDClear( GLcontext *ctx,
grDisable(GR_STENCIL_MODE_EXT);
}
END_BOARD_LOCK();
} else if (mask & DD_STENCIL_BIT) {
softwareMask |= (mask & (DD_STENCIL_BIT));
mask &= ~(DD_STENCIL_BIT);
}
/*
@@ -228,8 +219,7 @@ static void fxDDClear( GLcontext *ctx,
switch (mask & ~DD_STENCIL_BIT) {
case DD_BACK_LEFT_BIT | DD_DEPTH_BIT:
/* back buffer & depth */
/* FX_grColorMaskv_NoLock(ctx, true4); */ /* work around Voodoo3 bug */
grDepthMask(FXTRUE);
grDepthMask(FXTRUE);
grRenderBuffer(GR_BUFFER_BACKBUFFER);
if (stencil_size > 0) {
fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
@@ -240,9 +230,6 @@ static void fxDDClear( GLcontext *ctx,
grBufferClear(fxMesa->clearC,
fxMesa->clearA,
clearD);
if (!fxMesa->unitsState.depthTestEnabled) {
grDepthMask(FXFALSE);
}
break;
case DD_FRONT_LEFT_BIT | DD_DEPTH_BIT:
/* XXX it appears that the depth buffer isn't cleared when
@@ -250,9 +237,9 @@ static void fxDDClear( GLcontext *ctx,
* This is a work-around/
*/
/* clear depth */
grDepthMask(FXTRUE);
grRenderBuffer(GR_BUFFER_BACKBUFFER);
grDepthMask(FXTRUE);
fxDisableColor(fxMesa);
grRenderBuffer(GR_BUFFER_BACKBUFFER);
if (stencil_size > 0)
fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
fxMesa->clearA,
@@ -261,8 +248,9 @@ static void fxDDClear( GLcontext *ctx,
grBufferClear(fxMesa->clearC,
fxMesa->clearA,
clearD);
/* clear front */
fxSetupColorMask(ctx);
grDepthMask(FXFALSE);
/* clear front */
grRenderBuffer(GR_BUFFER_FRONTBUFFER);
if (stencil_size > 0)
fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
@@ -272,9 +260,6 @@ static void fxDDClear( GLcontext *ctx,
grBufferClear(fxMesa->clearC,
fxMesa->clearA,
clearD);
if (!fxMesa->unitsState.depthTestEnabled) {
grDepthMask(FXFALSE);
}
break;
case DD_BACK_LEFT_BIT:
/* back buffer only */
@@ -288,9 +273,6 @@ static void fxDDClear( GLcontext *ctx,
grBufferClear(fxMesa->clearC,
fxMesa->clearA,
clearD);
if (fxMesa->unitsState.depthTestEnabled) {
grDepthMask(FXTRUE);
}
break;
case DD_FRONT_LEFT_BIT:
/* front buffer only */
@@ -304,9 +286,6 @@ static void fxDDClear( GLcontext *ctx,
grBufferClear(fxMesa->clearC,
fxMesa->clearA,
clearD);
if (fxMesa->unitsState.depthTestEnabled) {
grDepthMask(FXTRUE);
}
break;
case DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT:
/* front and back */
@@ -329,11 +308,19 @@ static void fxDDClear( GLcontext *ctx,
grBufferClear(fxMesa->clearC,
fxMesa->clearA,
clearD);
if (fxMesa->unitsState.depthTestEnabled) {
grDepthMask(FXTRUE);
}
break;
case DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT | DD_DEPTH_BIT:
/* clear back and depth */
grDepthMask(FXTRUE);
grRenderBuffer(GR_BUFFER_BACKBUFFER);
if (stencil_size > 0)
fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
fxMesa->clearA,
clearD, clearS);
else
grBufferClear(fxMesa->clearC,
fxMesa->clearA,
clearD);
/* clear front */
grDepthMask(FXFALSE);
grRenderBuffer(GR_BUFFER_FRONTBUFFER);
@@ -345,26 +332,12 @@ static void fxDDClear( GLcontext *ctx,
grBufferClear(fxMesa->clearC,
fxMesa->clearA,
clearD);
/* clear back and depth */
grDepthMask(FXTRUE);
grRenderBuffer(GR_BUFFER_BACKBUFFER);
if (stencil_size > 0)
fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
fxMesa->clearA,
clearD, clearS);
else
grBufferClear(fxMesa->clearC,
fxMesa->clearA,
clearD);
if (!fxMesa->unitsState.depthTestEnabled) {
grDepthMask(FXFALSE);
}
break;
case DD_DEPTH_BIT:
/* just the depth buffer */
grRenderBuffer(GR_BUFFER_BACKBUFFER);
grDepthMask(FXTRUE);
fxDisableColor(fxMesa);
grDepthMask(FXTRUE);
grRenderBuffer(GR_BUFFER_BACKBUFFER);
if (stencil_size > 0)
fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
fxMesa->clearA,
@@ -374,41 +347,29 @@ static void fxDDClear( GLcontext *ctx,
fxMesa->clearA,
clearD);
fxSetupColorMask(ctx);
if (ctx->Color._DrawDestMask & DD_FRONT_LEFT_BIT) {
grRenderBuffer(GR_BUFFER_FRONTBUFFER);
}
if (!fxMesa->unitsState.depthTestEnabled) {
grDepthMask(FXFALSE);
}
break;
default:
/* clear no color buffers or depth buffer but might clear stencil */
if (stencil_size > 0 && (mask & DD_STENCIL_BIT)) {
if ((stencil_size > 0) && (mask & DD_STENCIL_BIT)) {
/* XXX need this RenderBuffer call to work around Glide bug */
grRenderBuffer(GR_BUFFER_BACKBUFFER);
grDepthMask(FXFALSE);
grRenderBuffer(GR_BUFFER_BACKBUFFER);
fxDisableColor(fxMesa);
fxMesa->Glide.grBufferClearExt(fxMesa->clearC,
fxMesa->clearA,
clearD, clearS);
if (fxMesa->unitsState.depthTestEnabled) {
grDepthMask(FXTRUE);
}
fxSetupColorMask(ctx);
if (ctx->Color._DrawDestMask & DD_FRONT_LEFT_BIT) {
grRenderBuffer(GR_BUFFER_FRONTBUFFER);
}
}
}
}
END_CLIP_LOOP();
if (fxMesa->haveHwStencil && (mask & DD_STENCIL_BIT)) {
/* We changed the stencil state above. Signal that we need to
* upload it again.
*/
fxMesa->new_state |= FX_NEW_STENCIL;
if (fxMesa->haveHwStencil) {
/* We changed the stencil state above. Restore it! */
fxSetupStencil(ctx);
}
fxSetupDepthTest(ctx);
grRenderBuffer(fxMesa->currentFB);
if (softwareMask)
_swrast_Clear( ctx, softwareMask, all, x, y, width, height );
@@ -417,6 +378,7 @@ static void fxDDClear( GLcontext *ctx,
/* Set the buffer used for drawing */
/* XXX support for separate read/draw buffers hasn't been tested */
/* XXX GL_NONE disables color, but fails to correctly maintain state */
static void
fxDDSetDrawBuffer(GLcontext * ctx, GLenum mode)
{
@@ -1693,7 +1655,7 @@ fxDDGetString(GLcontext * ctx, GLenum name)
}
static const struct tnl_pipeline_stage *fx_pipeline[] = {
&_tnl_vertex_transform_stage, /* TODO: Add the fastpath here */
&_tnl_vertex_transform_stage, /* XXX todo - Add the fastpath here */
&_tnl_normal_transform_stage,
&_tnl_lighting_stage,
&_tnl_fog_coordinate_stage,
@@ -2010,8 +1972,7 @@ fx_check_IsInHardware(GLcontext * ctx)
#if 0
/* [dBorca]
* We fail the spec here, unless certain blending modes:
* (c1 + c2) * 1 + d * 1 = c1 * 1 + d * 1 + c2 * 1
* (c1 + c2) * 1 + d * 0 = c1 * 1 + d * 0 + c2 * 1
* RGB: (GL_ONE + GL_*) or (GL_ZERO + GL_*) or ...
*/
if (NEED_SECONDARY_COLOR(ctx)) {
if ((ctx->Color.BlendEquationRGB != GL_FUNC_ADD) &&