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Diffstat (limited to 'src/mesa/drivers/osmesa')
-rw-r--r--src/mesa/drivers/osmesa/osmesa.c271
1 files changed, 27 insertions, 244 deletions
diff --git a/src/mesa/drivers/osmesa/osmesa.c b/src/mesa/drivers/osmesa/osmesa.c
index 04d5de4731..9a7ef250a3 100644
--- a/src/mesa/drivers/osmesa/osmesa.c
+++ b/src/mesa/drivers/osmesa/osmesa.c
@@ -1,4 +1,4 @@
-/* $Id: osmesa.c,v 1.14 2000/04/04 00:54:23 brianp Exp $ */
+/* $Id: osmesa.c,v 1.15 2000/04/04 15:14:10 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -474,8 +474,9 @@ void GLAPIENTRY OSMesaGetIntegerv( GLint pname, GLint *value )
* buffer - pointer to depth buffer values
* Return: GL_TRUE or GL_FALSE to indicate success or failure.
*/
-GLboolean GLAPIENTRY OSMesaGetDepthBuffer( OSMesaContext c, GLint *width, GLint *height,
- GLint *bytesPerValue, void **buffer )
+GLboolean GLAPIENTRY
+OSMesaGetDepthBuffer( OSMesaContext c, GLint *width, GLint *height,
+ GLint *bytesPerValue, void **buffer )
{
if ((!c->gl_buffer) || (!c->gl_buffer->DepthBuffer)) {
*width = 0;
@@ -501,8 +502,9 @@ GLboolean GLAPIENTRY OSMesaGetDepthBuffer( OSMesaContext c, GLint *width, GLint
* buffer - pointer to color buffer values
* Return: GL_TRUE or GL_FALSE to indicate success or failure.
*/
-GLboolean GLAPIENTRY OSMesaGetColorBuffer( OSMesaContext c, GLint *width,
- GLint *height, GLint *format, void **buffer )
+GLboolean GLAPIENTRY
+OSMesaGetColorBuffer( OSMesaContext c, GLint *width,
+ GLint *height, GLint *format, void **buffer )
{
if (!c->buffer) {
*width = 0;
@@ -510,7 +512,8 @@ GLboolean GLAPIENTRY OSMesaGetColorBuffer( OSMesaContext c, GLint *width,
*format = 0;
*buffer = 0;
return GL_FALSE;
- } else {
+ }
+ else {
*width = c->width;
*height = c->height;
*format = c->format;
@@ -961,8 +964,6 @@ static void write_monocolor_span3( const GLcontext *ctx,
GLint rind = osmesa->rind;
GLint gind = osmesa->gind;
GLint bind = osmesa->bind;
-
-
GLubyte *ptr3 = PIXELADDR3( x, y);
GLuint i;
for (i=0;i<n;i++,ptr3+=3) {
@@ -1024,7 +1025,7 @@ static void read_rgba_span3( const GLcontext *ctx,
GLint rind = osmesa->rind;
GLint gind = osmesa->gind;
GLint bind = osmesa->bind;
- GLubyte *ptr3 = PIXELADDR3( x, y);
+ const GLubyte *ptr3 = PIXELADDR3( x, y);
for (i=0;i<n;i++,ptr3+=3) {
rgba[i][RCOMP] = ptr3[rind];
rgba[i][GCOMP] = ptr3[gind];
@@ -1044,7 +1045,7 @@ static void read_rgba_pixels3( const GLcontext *ctx,
GLint bind = osmesa->bind;
for (i=0;i<n;i++) {
if (mask[i]) {
- GLubyte *ptr3 = PIXELADDR3(x[i],y[i]);
+ const GLubyte *ptr3 = PIXELADDR3(x[i],y[i]);
rgba[i][RCOMP] = ptr3[rind];
rgba[i][GCOMP] = ptr3[gind];
rgba[i][BCOMP] = ptr3[bind];
@@ -1152,7 +1153,7 @@ static void read_index_span( const GLcontext *ctx,
{
OSMesaContext osmesa = (OSMesaContext) ctx;
GLuint i;
- GLubyte *ptr1 = PIXELADDR1(x,y);
+ const GLubyte *ptr1 = PIXELADDR1(x,y);
for (i=0;i<n;i++,ptr1++) {
index[i] = (GLuint) *ptr1;
}
@@ -1167,7 +1168,7 @@ static void read_index_pixels( const GLcontext *ctx,
GLuint i;
for (i=0;i<n;i++) {
if (mask[i] ) {
- GLubyte *ptr1 = PIXELADDR1(x[i],y[i]);
+ const GLubyte *ptr1 = PIXELADDR1(x[i],y[i]);
index[i] = (GLuint) *ptr1;
}
}
@@ -1251,12 +1252,12 @@ static void flat_blend_rgba_line( GLcontext *ctx,
#define INTERP_XY 1
#define CLIP_HACK 1
#define PLOT(X,Y) \
- { GLuint *ptr4 = PIXELADDR4(X,Y); \
- GLuint pixel = 0; \
+ { GLuint *ptr4 = PIXELADDR4(X,Y); \
+ GLuint pixel = 0; \
pixel |=((((((*ptr4) >> rshift) & 0xff)*msavalue+rvalue)>>8) << rshift);\
pixel |=((((((*ptr4) >> gshift) & 0xff)*msavalue+gvalue)>>8) << gshift);\
pixel |=((((((*ptr4) >> bshift) & 0xff)*msavalue+bvalue)>>8) << bshift);\
- *ptr4 = pixel; \
+ *ptr4 = pixel; \
}
#ifdef WIN32
@@ -1288,14 +1289,14 @@ static void flat_blend_rgba_z_line( GLcontext *ctx,
#define INTERP_Z 1
#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
#define CLIP_HACK 1
-#define PLOT(X,Y) \
- if (Z < *zPtr) { \
- GLuint *ptr4 = PIXELADDR4(X,Y); \
- GLuint pixel = 0; \
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ GLuint *ptr4 = PIXELADDR4(X,Y); \
+ GLuint pixel = 0; \
pixel |=((((((*ptr4) >> rshift) & 0xff)*msavalue+rvalue)>>8) << rshift); \
pixel |=((((((*ptr4) >> gshift) & 0xff)*msavalue+gvalue)>>8) << gshift); \
pixel |=((((((*ptr4) >> bshift) & 0xff)*msavalue+bvalue)>>8) << bshift); \
- *ptr4 = pixel; \
+ *ptr4 = pixel; \
}
#ifdef WIN32
@@ -1327,15 +1328,15 @@ static void flat_blend_rgba_z_line_write( GLcontext *ctx,
#define INTERP_Z 1
#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
#define CLIP_HACK 1
-#define PLOT(X,Y) \
- if (Z < *zPtr) { \
- GLuint *ptr4 = PIXELADDR4(X,Y); \
- GLuint pixel = 0; \
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ GLuint *ptr4 = PIXELADDR4(X,Y); \
+ GLuint pixel = 0; \
pixel |=((((((*ptr4) >> rshift) & 0xff)*msavalue+rvalue)>>8) << rshift); \
pixel |=((((((*ptr4) >> gshift) & 0xff)*msavalue+gvalue)>>8) << gshift); \
pixel |=((((((*ptr4) >> bshift) & 0xff)*msavalue+bvalue)>>8) << bshift); \
- *ptr4 = pixel; \
- *zPtr = Z; \
+ *ptr4 = pixel; \
+ *zPtr = Z; \
}
#ifdef WIN32
@@ -1560,180 +1561,6 @@ static triangle_func choose_triangle_function( GLcontext *ctx )
-/**********************************************************************/
-/***** Occlusion rendering routines *****/
-/**********************************************************************/
-
-#define OCC_STD_MASK_TEST \
- if (ctx->OcclusionResult) return; \
- if (mask) { \
- GLuint i; \
- for (i=0;i<n;i++) if (mask[i]) { \
- ((GLcontext *)ctx)->OcclusionResult = GL_TRUE; \
- return; \
- } \
- } else { \
- ((GLcontext *)ctx)->OcclusionResult = GL_TRUE; \
- } \
- return;
-
-/**
-*** Color Index
-**/
-
-static void write_index32_span_occ( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLuint index[], const GLubyte mask[] )
-{
- OCC_STD_MASK_TEST
-}
-
-
-static void write_index8_span_occ( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLubyte index[], const GLubyte mask[] )
-{
- OCC_STD_MASK_TEST
-}
-
-
-static void write_monoindex_span_occ( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLubyte mask[] )
-{
- OCC_STD_MASK_TEST
-}
-
-
-static void write_index_pixels_occ( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLuint index[], const GLubyte mask[] )
-{
- OCC_STD_MASK_TEST
-}
-
-
-static void write_monoindex_pixels_occ( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLubyte mask[] )
-{
- OCC_STD_MASK_TEST
-}
-
-/**
-*** RGB/RGBA
-**/
-static void write_rgba_span_occ( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- CONST GLubyte rgba[][4], const GLubyte mask[] )
-{
- OCC_STD_MASK_TEST
-}
-
-
-static void write_rgb_span_occ( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- CONST GLubyte rgb[][3],
- const GLubyte mask[] )
-{
- OCC_STD_MASK_TEST
-}
-
-
-static void write_rgba_pixels_occ( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- CONST GLubyte rgba[][4], const GLubyte mask[] )
-{
- OCC_STD_MASK_TEST
-}
-
-
-static void write_monocolor_span_occ( const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLubyte mask[] )
-{
- OCC_STD_MASK_TEST
-}
-
-
-static void write_monocolor_pixels_occ( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLubyte mask[] )
-{
- OCC_STD_MASK_TEST
-}
-
-
-/**
-*** Line Drawing
-**/
-static void line_occ( GLcontext *ctx,
- GLuint vert0, GLuint vert1, GLuint pvert )
-{
- ctx->OcclusionResult = GL_TRUE;
-}
-
-
-static void line_z_occ( GLcontext *ctx,
- GLuint vert0, GLuint vert1, GLuint pvert )
-{
- if (ctx->OcclusionResult) return;
-
-#define INTERP_XY 1
-#define INTERP_Z 1
-#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
-#define CLIP_HACK 1
-#define PLOT(X,Y) \
- if (Z < *zPtr) { \
- ctx->OcclusionResult = GL_TRUE; \
- return; \
- }
-
-#ifdef WIN32
-#include "..\linetemp.h"
-#else
-#include "linetemp.h"
-#endif
-}
-
-
-/**
-*** Triangle Drawing
-**/
-static void triangle_occ( GLcontext *ctx, GLuint v0, GLuint v1,
- GLuint v2, GLuint pv )
-{
- ctx->OcclusionResult = GL_TRUE;
-}
-
-
-static void triangle_z_occ( GLcontext *ctx, GLuint v0, GLuint v1,
- GLuint v2, GLuint pv )
-{
- if (ctx->OcclusionResult) return;
-
-#define INTERP_Z 1
-#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
-#define INNER_LOOP( LEFT, RIGHT, Y ) \
-{ \
- GLint i, len = RIGHT-LEFT; \
- for (i=0;i<len;i++) { \
- GLdepth z = FixedToDepth(ffz); \
- if (z < zRow[i]) { \
- ctx->OcclusionResult = GL_TRUE; \
- return; \
- } \
- ffz += fdzdx; \
- } \
-}
-#ifdef WIN32
-#include "..\tritemp.h"
-#else
-#include "tritemp.h"
-#endif
-}
-
-
static const GLubyte *get_string( GLcontext *ctx, GLenum name )
{
(void) ctx;
@@ -1808,48 +1635,4 @@ static void osmesa_update_state( GLcontext *ctx )
ctx->Driver.WriteMonoCIPixels = write_monoindex_pixels;
ctx->Driver.ReadCI32Span = read_index_span;
ctx->Driver.ReadCI32Pixels = read_index_pixels;
-
- /* Occlusion test cases:
- * If no buffers have been selected for writing,
- * we swap in occlusion routines that:
- * (1) check the current flag and return if set
- * (2) set the flag if any pixel would be updated
- * Note: all the other buffer writing routines will
- * always set the visible flag so in cases of "improper"
- * extension use will just cause unnecessary rasterization
- * to occur. The image will be correct in any case.
- */
- if ((ctx->Depth.OcclusionTest) &&
- (((!ctx->Visual->RGBAflag) &&
- (ctx->Color.IndexMask == 0)) ||
- ((ctx->Visual->RGBAflag) &&
- (ctx->Color.ColorMask[0] == 0) &&
- (ctx->Color.ColorMask[1] == 0) &&
- (ctx->Color.ColorMask[2] == 0) &&
- (ctx->Color.ColorMask[3] == 0))) &&
- (ctx->Depth.Func == GL_LESS) &&
- (ctx->Stencil.Enabled == GL_FALSE)) {
-
- ctx->Driver.WriteCI32Span = write_index32_span_occ;
- ctx->Driver.WriteCI8Span = write_index8_span_occ;
- ctx->Driver.WriteMonoCISpan = write_monoindex_span_occ;
- ctx->Driver.WriteCI32Pixels = write_index_pixels_occ;
- ctx->Driver.WriteMonoCIPixels = write_monoindex_pixels_occ;
-
- ctx->Driver.WriteRGBASpan = write_rgba_span_occ;
- ctx->Driver.WriteRGBSpan = write_rgb_span_occ;
- ctx->Driver.WriteRGBAPixels = write_rgba_pixels_occ;
- ctx->Driver.WriteMonoRGBASpan = write_monocolor_span_occ;
- ctx->Driver.WriteMonoRGBAPixels = write_monocolor_pixels_occ;
-
- if (ctx->RasterMask & DEPTH_BIT) {
- ctx->Driver.LineFunc = line_z_occ;
- ctx->Driver.TriangleFunc = triangle_z_occ;
- } else {
- ctx->Driver.LineFunc = line_occ;
- ctx->Driver.TriangleFunc = triangle_occ;
- }
- } else {
- ctx->OcclusionResult = GL_TRUE;
- }
}
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