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i965: translate shadow compare function into correct 

internal function to match the EXT_shadow_funs
spec. fix bug#11925
This commit is contained in:
Xiang, Haihao 2007-09-12 16:51:45 +08:00
parent ae078e1a0a
commit a0a5e8cfc0
3 changed files with 27 additions and 2 deletions
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2
src/mesa/drivers/dri/i965/brw_wm_sampler_state.c
View File

@ -173,7 +173,7 @@ static void brw_update_sampler_state( struct gl_texture_unit *texUnit,
* message (sample_c). So need to recompile WM program when
* shadow comparison is enabled on each/any texture unit.
*/
sampler->ss0.shadow_function = intel_translate_compare_func(texObj->CompareFunc);
sampler->ss0.shadow_function = intel_translate_shadow_compare_func(texObj->CompareFunc);
}
/* Set LOD bias:

2
src/mesa/drivers/dri/i965/intel_context.h
View File

@ -464,7 +464,7 @@ extern void intelInitStateFuncs( struct dd_function_table *functions );
#define BLENDFACT_INV_CONST_ALPHA 0x0f
#define BLENDFACT_MASK 0x0f
extern int intel_translate_shadow_compare_func( GLenum func );
extern int intel_translate_compare_func( GLenum func );
extern int intel_translate_stencil_op( GLenum op );
extern int intel_translate_blend_factor( GLenum factor );

25
src/mesa/drivers/dri/i965/intel_state.c
View File

@ -38,6 +38,31 @@
#include "intel_regions.h"
#include "swrast/swrast.h"
int intel_translate_shadow_compare_func( GLenum func )
{
switch(func) {
case GL_NEVER:
return COMPAREFUNC_ALWAYS;
case GL_LESS:
return COMPAREFUNC_LEQUAL;
case GL_LEQUAL:
return COMPAREFUNC_LESS;
case GL_GREATER:
return COMPAREFUNC_GEQUAL;
case GL_GEQUAL:
return COMPAREFUNC_GREATER;
case GL_NOTEQUAL:
return COMPAREFUNC_EQUAL;
case GL_EQUAL:
return COMPAREFUNC_NOTEQUAL;
case GL_ALWAYS:
return COMPAREFUNC_NEVER;
}
fprintf(stderr, "Unknown value in %s: %x\n", __FUNCTION__, func);
return COMPAREFUNC_NEVER;
}
int intel_translate_compare_func( GLenum func )
{
switch(func) {