summaryrefslogtreecommitdiffstats
path: root/src/mesa/swrast/s_stencil.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mesa/swrast/s_stencil.c')
-rw-r--r--src/mesa/swrast/s_stencil.c58
1 files changed, 32 insertions, 26 deletions
diff --git a/src/mesa/swrast/s_stencil.c b/src/mesa/swrast/s_stencil.c
index af782aa7856..2b7bb91f736 100644
--- a/src/mesa/swrast/s_stencil.c
+++ b/src/mesa/swrast/s_stencil.c
@@ -1,4 +1,4 @@
-/* $Id: s_stencil.c,v 1.10 2001/03/12 00:48:42 gareth Exp $ */
+/* $Id: s_stencil.c,v 1.11 2001/03/19 02:25:36 keithw Exp $ */
/*
* Mesa 3-D graphics library
@@ -505,6 +505,7 @@ GLboolean
_mesa_stencil_and_ztest_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLdepth z[], GLubyte mask[] )
{
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
GLstencil stencilRow[MAX_WIDTH];
GLstencil *stencil;
GLboolean result;
@@ -513,10 +514,10 @@ _mesa_stencil_and_ztest_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
ASSERT(n <= MAX_WIDTH);
/* Get initial stencil values */
- if (ctx->Driver.WriteStencilSpan) {
- ASSERT(ctx->Driver.ReadStencilSpan);
+ if (swrast->Driver.WriteStencilSpan) {
+ ASSERT(swrast->Driver.ReadStencilSpan);
/* Get stencil values from the hardware stencil buffer */
- (*ctx->Driver.ReadStencilSpan)(ctx, n, x, y, stencilRow);
+ (*swrast->Driver.ReadStencilSpan)(ctx, n, x, y, stencilRow);
stencil = stencilRow;
}
else {
@@ -527,9 +528,9 @@ _mesa_stencil_and_ztest_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
/* do all the stencil/depth testing/updating */
result = stencil_and_ztest_span( ctx, n, x, y, z, stencil, mask );
- if (ctx->Driver.WriteStencilSpan) {
+ if (swrast->Driver.WriteStencilSpan) {
/* Write updated stencil values into hardware stencil buffer */
- (ctx->Driver.WriteStencilSpan)(ctx, n, x, y, stencil, mask );
+ (swrast->Driver.WriteStencilSpan)(ctx, n, x, y, stencil, mask );
}
return result;
@@ -556,7 +557,7 @@ apply_stencil_op_to_pixels( const GLcontext *ctx,
const GLstencil invmask = (GLstencil) (~ctx->Stencil.WriteMask);
GLuint i;
- ASSERT(!ctx->Driver.WriteStencilSpan); /* software stencil buffer only! */
+ ASSERT(!SWRAST_CONTEXT(ctx)->Driver.WriteStencilSpan); /* software stencil buffer only! */
switch (oper) {
case GL_KEEP:
@@ -722,7 +723,7 @@ stencil_test_pixels( GLcontext *ctx, GLuint n,
GLuint i;
GLboolean allfail = GL_FALSE;
- ASSERT(!ctx->Driver.WriteStencilSpan); /* software stencil buffer only! */
+ ASSERT(!SWRAST_CONTEXT(ctx)->Driver.WriteStencilSpan); /* software stencil buffer only! */
/*
* Perform stencil test. The results of this operation are stored
@@ -910,16 +911,17 @@ _mesa_stencil_and_ztest_pixels( GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
const GLdepth z[], GLubyte mask[] )
{
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
ASSERT(ctx->Stencil.Enabled);
ASSERT(n <= PB_SIZE);
- if (ctx->Driver.WriteStencilPixels) {
+ if (swrast->Driver.WriteStencilPixels) {
/*** Hardware stencil buffer ***/
GLstencil stencil[PB_SIZE];
GLubyte origMask[PB_SIZE];
- ASSERT(ctx->Driver.ReadStencilPixels);
- (*ctx->Driver.ReadStencilPixels)(ctx, n, x, y, stencil);
+ ASSERT(swrast->Driver.ReadStencilPixels);
+ (*swrast->Driver.ReadStencilPixels)(ctx, n, x, y, stencil);
MEMCPY(origMask, mask, n * sizeof(GLubyte));
@@ -954,7 +956,7 @@ _mesa_stencil_and_ztest_pixels( GLcontext *ctx,
}
/* Write updated stencil values into hardware stencil buffer */
- (ctx->Driver.WriteStencilPixels)(ctx, n, x, y, stencil, origMask);
+ (swrast->Driver.WriteStencilPixels)(ctx, n, x, y, stencil, origMask);
return GL_TRUE;
}
@@ -1011,6 +1013,7 @@ void
_mesa_read_stencil_span( GLcontext *ctx,
GLint n, GLint x, GLint y, GLstencil stencil[] )
{
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
if (y < 0 || y >= ctx->DrawBuffer->Height ||
x + n <= 0 || x >= ctx->DrawBuffer->Width) {
/* span is completely outside framebuffer */
@@ -1033,8 +1036,8 @@ _mesa_read_stencil_span( GLcontext *ctx,
ASSERT(n >= 0);
- if (ctx->Driver.ReadStencilSpan) {
- (*ctx->Driver.ReadStencilSpan)( ctx, (GLuint) n, x, y, stencil );
+ if (swrast->Driver.ReadStencilSpan) {
+ (*swrast->Driver.ReadStencilSpan)( ctx, (GLuint) n, x, y, stencil );
}
else if (ctx->DrawBuffer->Stencil) {
const GLstencil *s = STENCIL_ADDRESS( x, y );
@@ -1061,6 +1064,7 @@ void
_mesa_write_stencil_span( GLcontext *ctx, GLint n, GLint x, GLint y,
const GLstencil stencil[] )
{
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
if (y < 0 || y >= ctx->DrawBuffer->Height ||
x + n <= 0 || x >= ctx->DrawBuffer->Width) {
/* span is completely outside framebuffer */
@@ -1081,8 +1085,8 @@ _mesa_write_stencil_span( GLcontext *ctx, GLint n, GLint x, GLint y,
return;
}
- if (ctx->Driver.WriteStencilSpan) {
- (*ctx->Driver.WriteStencilSpan)( ctx, n, x, y, stencil, NULL );
+ if (swrast->Driver.WriteStencilSpan) {
+ (*swrast->Driver.WriteStencilSpan)( ctx, n, x, y, stencil, NULL );
}
else if (ctx->DrawBuffer->Stencil) {
GLstencil *s = STENCIL_ADDRESS( x, y );
@@ -1212,8 +1216,9 @@ clear_software_stencil_buffer( GLcontext *ctx )
static void
clear_hardware_stencil_buffer( GLcontext *ctx )
{
- ASSERT(ctx->Driver.WriteStencilSpan);
- ASSERT(ctx->Driver.ReadStencilSpan);
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ ASSERT(swrast->Driver.WriteStencilSpan);
+ ASSERT(swrast->Driver.ReadStencilSpan);
if (ctx->Scissor.Enabled) {
/* clear scissor region only */
@@ -1228,11 +1233,11 @@ clear_hardware_stencil_buffer( GLcontext *ctx )
const GLstencil clearVal = (ctx->Stencil.Clear & mask);
GLstencil stencil[MAX_WIDTH];
GLint i;
- (*ctx->Driver.ReadStencilSpan)(ctx, width, x, y, stencil);
+ (*swrast->Driver.ReadStencilSpan)(ctx, width, x, y, stencil);
for (i = 0; i < width; i++) {
stencil[i] = (stencil[i] & invMask) | clearVal;
}
- (*ctx->Driver.WriteStencilSpan)(ctx, width, x, y, stencil, NULL);
+ (*swrast->Driver.WriteStencilSpan)(ctx, width, x, y, stencil, NULL);
}
}
else {
@@ -1243,7 +1248,7 @@ clear_hardware_stencil_buffer( GLcontext *ctx )
stencil[i] = ctx->Stencil.Clear;
}
for (y = ctx->DrawBuffer->_Ymin; y < ctx->DrawBuffer->_Ymax; y++) {
- (*ctx->Driver.WriteStencilSpan)(ctx, width, x, y, stencil, NULL);
+ (*swrast->Driver.WriteStencilSpan)(ctx, width, x, y, stencil, NULL);
}
}
}
@@ -1261,11 +1266,11 @@ clear_hardware_stencil_buffer( GLcontext *ctx )
for (y = 0; y < height; y++) {
GLstencil stencil[MAX_WIDTH];
GLint i;
- (*ctx->Driver.ReadStencilSpan)(ctx, width, x, y, stencil);
+ (*swrast->Driver.ReadStencilSpan)(ctx, width, x, y, stencil);
for (i = 0; i < width; i++) {
stencil[i] = (stencil[i] & invMask) | clearVal;
}
- (*ctx->Driver.WriteStencilSpan)(ctx, width, x, y, stencil, NULL);
+ (*swrast->Driver.WriteStencilSpan)(ctx, width, x, y, stencil, NULL);
}
}
else {
@@ -1279,7 +1284,7 @@ clear_hardware_stencil_buffer( GLcontext *ctx )
stencil[i] = ctx->Stencil.Clear;
}
for (y = 0; y < height; y++) {
- (*ctx->Driver.WriteStencilSpan)(ctx, width, x, y, stencil, NULL);
+ (*swrast->Driver.WriteStencilSpan)(ctx, width, x, y, stencil, NULL);
}
}
}
@@ -1293,8 +1298,9 @@ clear_hardware_stencil_buffer( GLcontext *ctx )
void
_mesa_clear_stencil_buffer( GLcontext *ctx )
{
- if (ctx->Driver.WriteStencilSpan) {
- ASSERT(ctx->Driver.ReadStencilSpan);
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ if (swrast->Driver.WriteStencilSpan) {
+ ASSERT(swrast->Driver.ReadStencilSpan);
clear_hardware_stencil_buffer(ctx);
}
else {
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-30 10:48:46 +0000