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authorMichal Krol <michal@vmware.com>2010-01-07 11:10:24 +0100
committerMichal Krol <michal@vmware.com>2010-01-07 11:10:24 +0100
commite313dabdc735b663cc8364669fc4690ed592a585 (patch)
treecc9b941fa9f9a4faa3d27a15dcd20caf21ef5cf2
parent8d38ef455196e6ddda22536e435638a02a7b48f3 (diff)
tgsi: Cleanup exec_tex().
-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_exec.c89
1 files changed, 40 insertions, 49 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c
index f43233bdb4..6beeb9a2ca 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c
@@ -1529,90 +1529,81 @@ fetch_texel( struct tgsi_sampler *sampler,
}
+#define TEX_MODIFIER_NONE 0
+#define TEX_MODIFIER_PROJECTED 1
+#define TEX_MODIFIER_LOD_BIAS 2
+#define TEX_MODIFIER_EXPLICIT_LOD 3
+
+
static void
exec_tex(struct tgsi_exec_machine *mach,
const struct tgsi_full_instruction *inst,
- boolean biasLod,
- boolean projected)
+ uint modifier)
{
const uint unit = inst->Src[1].Register.Index;
union tgsi_exec_channel r[4];
uint chan_index;
- float lodBias;
-
- /* debug_printf("Sampler %u unit %u\n", sampler, unit); */
+ float lodBias = 0.0f;
switch (inst->Texture.Texture) {
case TGSI_TEXTURE_1D:
case TGSI_TEXTURE_SHADOW1D:
-
FETCH(&r[0], 0, CHAN_X);
- if (projected) {
+ if (modifier != TEX_MODIFIER_NONE) {
FETCH(&r[1], 0, CHAN_W);
- micro_div( &r[0], &r[0], &r[1] );
- }
-
- if (biasLod) {
- FETCH(&r[1], 0, CHAN_W);
- lodBias = r[2].f[0];
+ if (modifier == TEX_MODIFIER_PROJECTED) {
+ micro_div(&r[0], &r[0], &r[1]);
+ } else {
+ lodBias = r[1].f[0];
+ }
}
- else
- lodBias = 0.0;
fetch_texel(mach->Samplers[unit],
- &r[0], &ZeroVec, &ZeroVec, lodBias, /* S, T, P, BIAS */
- &r[0], &r[1], &r[2], &r[3]); /* R, G, B, A */
+ &r[0], &ZeroVec, &ZeroVec, lodBias, /* S, T, P, BIAS */
+ &r[0], &r[1], &r[2], &r[3]); /* R, G, B, A */
break;
case TGSI_TEXTURE_2D:
case TGSI_TEXTURE_RECT:
case TGSI_TEXTURE_SHADOW2D:
case TGSI_TEXTURE_SHADOWRECT:
-
FETCH(&r[0], 0, CHAN_X);
FETCH(&r[1], 0, CHAN_Y);
FETCH(&r[2], 0, CHAN_Z);
- if (projected) {
- FETCH(&r[3], 0, CHAN_W);
- micro_div( &r[0], &r[0], &r[3] );
- micro_div( &r[1], &r[1], &r[3] );
- micro_div( &r[2], &r[2], &r[3] );
- }
-
- if (biasLod) {
+ if (modifier != TEX_MODIFIER_NONE) {
FETCH(&r[3], 0, CHAN_W);
- lodBias = r[3].f[0];
+ if (modifier == TEX_MODIFIER_PROJECTED) {
+ micro_div(&r[0], &r[0], &r[3]);
+ micro_div(&r[1], &r[1], &r[3]);
+ micro_div(&r[2], &r[2], &r[3]);
+ } else {
+ lodBias = r[3].f[0];
+ }
}
- else
- lodBias = 0.0;
fetch_texel(mach->Samplers[unit],
- &r[0], &r[1], &r[2], lodBias, /* inputs */
+ &r[0], &r[1], &r[2], lodBias, /* inputs */
&r[0], &r[1], &r[2], &r[3]); /* outputs */
break;
case TGSI_TEXTURE_3D:
case TGSI_TEXTURE_CUBE:
-
FETCH(&r[0], 0, CHAN_X);
FETCH(&r[1], 0, CHAN_Y);
FETCH(&r[2], 0, CHAN_Z);
- if (projected) {
- FETCH(&r[3], 0, CHAN_W);
- micro_div( &r[0], &r[0], &r[3] );
- micro_div( &r[1], &r[1], &r[3] );
- micro_div( &r[2], &r[2], &r[3] );
- }
-
- if (biasLod) {
+ if (modifier != TEX_MODIFIER_NONE) {
FETCH(&r[3], 0, CHAN_W);
- lodBias = r[3].f[0];
+ if (modifier == TEX_MODIFIER_PROJECTED) {
+ micro_div(&r[0], &r[0], &r[3]);
+ micro_div(&r[1], &r[1], &r[3]);
+ micro_div(&r[2], &r[2], &r[3]);
+ } else {
+ lodBias = r[3].f[0];
+ }
}
- else
- lodBias = 0.0;
fetch_texel(mach->Samplers[unit],
&r[0], &r[1], &r[2], lodBias,
@@ -1620,11 +1611,11 @@ exec_tex(struct tgsi_exec_machine *mach,
break;
default:
- assert (0);
+ assert(0);
}
- FOR_EACH_ENABLED_CHANNEL( *inst, chan_index ) {
- STORE( &r[chan_index], 0, chan_index );
+ FOR_EACH_ENABLED_CHANNEL(*inst, chan_index) {
+ STORE(&r[chan_index], 0, chan_index);
}
}
@@ -2801,14 +2792,14 @@ exec_instruction(
/* simple texture lookup */
/* src[0] = texcoord */
/* src[1] = sampler unit */
- exec_tex(mach, inst, FALSE, FALSE);
+ exec_tex(mach, inst, TEX_MODIFIER_NONE);
break;
case TGSI_OPCODE_TXB:
/* Texture lookup with lod bias */
/* src[0] = texcoord (src[0].w = LOD bias) */
/* src[1] = sampler unit */
- exec_tex(mach, inst, TRUE, FALSE);
+ exec_tex(mach, inst, TEX_MODIFIER_LOD_BIAS);
break;
case TGSI_OPCODE_TXD:
@@ -2824,14 +2815,14 @@ exec_instruction(
/* Texture lookup with explit LOD */
/* src[0] = texcoord (src[0].w = LOD) */
/* src[1] = sampler unit */
- exec_tex(mach, inst, TRUE, FALSE);
+ exec_tex(mach, inst, TEX_MODIFIER_EXPLICIT_LOD);
break;
case TGSI_OPCODE_TXP:
/* Texture lookup with projection */
/* src[0] = texcoord (src[0].w = projection) */
/* src[1] = sampler unit */
- exec_tex(mach, inst, FALSE, TRUE);
+ exec_tex(mach, inst, TEX_MODIFIER_PROJECTED);
break;
case TGSI_OPCODE_UP2H: