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mesa: append fog instructions after parsing if a fog option is set

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Drivers don't have to worry about it then.
This commit is contained in:
Brian Paul 2008-03-25 11:32:31 -06:00
parent bedb93e989
commit c0ef166474
1 changed files with 11 additions and 0 deletions
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11
src/mesa/shader/arbprogparse.c
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@ -35,6 +35,7 @@
#include "shader/grammar/grammar_mesa.h"
#include "arbprogparse.h"
#include "program.h"
#include "programopt.h"
#include "prog_parameter.h"
#include "prog_statevars.h"
#include "context.h"
@ -3929,6 +3930,16 @@ _mesa_parse_arb_fragment_program(GLcontext* ctx, GLenum target,
_mesa_free_parameter_list(program->Base.Parameters);
program->Base.Parameters = ap.Base.Parameters;
/* Append fog instructions now if the program has "OPTION ARB_fog_exp"
* or similar. We used to leave this up to drivers, but it appears
* there's no hardware that wants to do fog in a discrete stage separate
* from the fragment shader.
*/
if (program->FogOption != GL_NONE) {
_mesa_append_fog_code(ctx, program);
program->FogOption = GL_NONE;
}
#if DEBUG_FP
_mesa_printf("____________Fragment program %u ________\n", program->Base.ID);
_mesa_print_program(&program->Base);