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i965: keep track of which texture units the fragment shader accesses

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We'll use this for debug/sanity checking.
This commit is contained in:
Brian Paul 2009-08-26 12:07:03 -06:00
parent f8b344114f
commit 34da6024e3
2 changed files with 18 additions and 3 deletions
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3
src/mesa/drivers/dri/i965/brw_context.h
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@ -174,6 +174,9 @@ struct brw_fragment_program {
dri_bo *const_buffer; /** Program constant buffer/surface */
GLboolean use_const_buffer;
/** for debugging, which texture units are referenced */
GLbitfield tex_units_used;
};

18
src/mesa/drivers/dri/i965/brw_wm_fp.c
View file

@ -42,6 +42,12 @@
#include "shader/prog_statevars.h"
/** An invalid texture target */
#define TEX_TARGET_NONE NUM_TEXTURE_TARGETS
/** An invalid texture unit */
#define TEX_UNIT_NONE BRW_MAX_TEX_UNIT
#define FIRST_INTERNAL_TEMP MAX_NV_FRAGMENT_PROGRAM_TEMPS
#define X 0
@ -199,8 +205,14 @@ static struct prog_instruction * emit_tex_op(struct brw_wm_compile *c,
{
struct prog_instruction *inst = get_fp_inst(c);
assert(tex_src_unit < BRW_MAX_TEX_UNIT);
assert(tex_src_target < NUM_TEXTURE_TARGETS);
assert(tex_src_unit < BRW_MAX_TEX_UNIT ||
tex_src_unit == TEX_UNIT_NONE);
assert(tex_src_target < NUM_TEXTURE_TARGETS ||
tex_src_target == TEX_TARGET_NONE);
/* update mask of which texture units are referenced by this program */
if (tex_src_unit != TEX_UNIT_NONE)
c->fp->tex_units_used |= (1 << tex_src_unit);
memset(inst, 0, sizeof(*inst));
@ -226,7 +238,7 @@ static struct prog_instruction * emit_op(struct brw_wm_compile *c,
struct prog_src_register src2 )
{
return emit_tex_op(c, op, dest, saturate,
0, 0, 0, /* tex unit, target, shadow */
TEX_UNIT_NONE, TEX_TARGET_NONE, 0, /* unit, tgt, shadow */
src0, src1, src2);
}