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i965: Clean up emit_tex a bit.

This commit is contained in:
Eric Anholt 2009-11-13 15:16:17 -08:00
parent 3d36d6b4cf
commit a0fd49b334
1 changed files with 24 additions and 27 deletions
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51
src/mesa/drivers/dri/i965/brw_wm_emit.c
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@ -828,8 +828,8 @@ static void emit_tex( struct brw_wm_compile *c,
struct brw_reg *arg )
{
struct brw_compile *p = &c->func;
GLuint msgLength, responseLength;
GLuint i, nr;
GLuint cur_mrf = 2, response_length;
GLuint i, nr_texcoords;
GLuint emit;
GLuint msg_type;
@ -838,17 +838,17 @@ static void emit_tex( struct brw_wm_compile *c,
switch (inst->tex_idx) {
case TEXTURE_1D_INDEX:
emit = WRITEMASK_X;
nr = 1;
nr_texcoords = 1;
break;
case TEXTURE_2D_INDEX:
case TEXTURE_RECT_INDEX:
emit = WRITEMASK_XY;
nr = 2;
nr_texcoords = 2;
break;
case TEXTURE_3D_INDEX:
case TEXTURE_CUBE_INDEX:
emit = WRITEMASK_XYZ;
nr = 3;
nr_texcoords = 3;
break;
default:
/* unexpected target */
@ -857,31 +857,28 @@ static void emit_tex( struct brw_wm_compile *c,
/* For shadow comparisons, we have to supply u,v,r. */
if (inst->tex_shadow)
nr = 3;
nr_texcoords = 3;
msgLength = 1;
for (i = 0; i < nr; i++) {
for (i = 0; i < nr_texcoords; i++) {
if (emit & (1<<i))
brw_MOV(p, brw_message_reg(msgLength+1), arg[i]);
brw_MOV(p, brw_message_reg(cur_mrf), arg[i]);
else
brw_MOV(p, brw_message_reg(msgLength+1), brw_imm_f(0));
msgLength += 2;
}
/* Fill in the cube map array index value. */
if (BRW_IS_IGDNG(p->brw) && inst->tex_shadow) {
brw_MOV(p, brw_message_reg(msgLength+1), brw_imm_f(0));
msgLength += 2;
brw_MOV(p, brw_message_reg(cur_mrf), brw_imm_f(0));
cur_mrf += 2;
}
/* Fill in the shadow comparison reference value. */
if (inst->tex_shadow) {
brw_MOV(p, brw_message_reg(msgLength+1), arg[2]);
msgLength += 2;
if (BRW_IS_IGDNG(p->brw)) {
/* Fill in the cube map array index value. */
brw_MOV(p, brw_message_reg(cur_mrf), brw_imm_f(0));
cur_mrf += 2;
}
brw_MOV(p, brw_message_reg(cur_mrf), arg[2]);
cur_mrf += 2;
}
responseLength = 8; /* always */
response_length = 8; /* always */
if (BRW_IS_IGDNG(p->brw)) {
if (inst->tex_shadow)
@ -895,19 +892,19 @@ static void emit_tex( struct brw_wm_compile *c,
msg_type = BRW_SAMPLER_MESSAGE_SIMD16_SAMPLE;
}
brw_SAMPLE(p,
brw_SAMPLE(p,
retype(vec16(dst[0]), BRW_REGISTER_TYPE_UW),
1,
retype(c->payload.depth[0].hw_reg, BRW_REGISTER_TYPE_UW),
SURF_INDEX_TEXTURE(inst->tex_unit),
inst->tex_unit, /* sampler */
inst->writemask,
msg_type,
responseLength,
msgLength,
0,
msg_type,
response_length,
cur_mrf - 1,
0,
1,
BRW_SAMPLER_SIMD_MODE_SIMD16);
BRW_SAMPLER_SIMD_MODE_SIMD16);
}