}
brw_pop_insn_state(p);
}
-
-static void emit_tex( struct brw_wm_compile *c,
- const struct brw_wm_instruction *inst,
- struct brw_reg *dst,
- GLuint dst_flags,
- struct brw_reg *arg )
+void emit_tex(struct brw_wm_compile *c,
+ struct brw_reg *dst,
+ GLuint dst_flags,
+ struct brw_reg *arg,
+ struct brw_reg depth_payload,
+ GLuint tex_idx,
+ GLuint sampler,
+ GLboolean shadow)
{
struct brw_compile *p = &c->func;
+ struct brw_reg dst_retyped;
GLuint cur_mrf = 2, response_length;
GLuint i, nr_texcoords;
GLuint emit;
GLuint msg_type;
+ GLuint mrf_per_channel;
+ GLuint simd_mode;
+
+ if (c->dispatch_width == 16) {
+ mrf_per_channel = 2;
+ response_length = 8;
+ dst_retyped = retype(vec16(dst[0]), BRW_REGISTER_TYPE_UW);
+ simd_mode = BRW_SAMPLER_SIMD_MODE_SIMD16;
+ } else {
+ mrf_per_channel = 1;
+ response_length = 4;
+ dst_retyped = retype(vec8(dst[0]), BRW_REGISTER_TYPE_UW);
+ simd_mode = BRW_SAMPLER_SIMD_MODE_SIMD8;
+ }
/* How many input regs are there?
*/
- switch (inst->tex_idx) {
+ switch (tex_idx) {
case TEXTURE_1D_INDEX:
emit = WRITEMASK_X;
nr_texcoords = 1;
abort();
}
+ /* Pre-Ironlake, the 8-wide sampler always took u,v,r. */
+ if (!BRW_IS_IGDNG(p->brw) && c->dispatch_width == 8)
+ nr_texcoords = 3;
+
/* For shadow comparisons, we have to supply u,v,r. */
- if (inst->tex_shadow)
+ if (shadow)
nr_texcoords = 3;
+ /* Emit the texcoords. */
for (i = 0; i < nr_texcoords; i++) {
if (emit & (1<<i))
brw_MOV(p, brw_message_reg(cur_mrf), arg[i]);
else
brw_MOV(p, brw_message_reg(cur_mrf), brw_imm_f(0));
- cur_mrf += 2;
+ cur_mrf += mrf_per_channel;
}
/* Fill in the shadow comparison reference value. */
- if (inst->tex_shadow) {
+ if (shadow) {
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;
+ cur_mrf += mrf_per_channel;
+ } else if (c->dispatch_width == 8) {
+ /* Fill in the LOD bias value. */
+ brw_MOV(p, brw_message_reg(cur_mrf), brw_imm_f(0));
+ cur_mrf += mrf_per_channel;
}
brw_MOV(p, brw_message_reg(cur_mrf), arg[2]);
- cur_mrf += 2;
+ cur_mrf += mrf_per_channel;
}
- response_length = 8; /* always */
-
if (BRW_IS_IGDNG(p->brw)) {
- if (inst->tex_shadow)
- msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_COMPARE_IGDNG;
- else
- msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_IGDNG;
+ if (shadow)
+ msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_COMPARE_IGDNG;
+ else
+ msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_IGDNG;
} else {
- if (inst->tex_shadow)
- msg_type = BRW_SAMPLER_MESSAGE_SIMD16_SAMPLE_COMPARE;
- else
- msg_type = BRW_SAMPLER_MESSAGE_SIMD16_SAMPLE;
+ /* Note that G45 and older determines shadow compare and dispatch width
+ * from message length for most messages.
+ */
+ if (c->dispatch_width == 16 && shadow)
+ msg_type = BRW_SAMPLER_MESSAGE_SIMD16_SAMPLE_COMPARE;
+ else
+ msg_type = BRW_SAMPLER_MESSAGE_SIMD16_SAMPLE;
}
brw_SAMPLE(p,
- retype(vec16(dst[0]), BRW_REGISTER_TYPE_UW),
+ dst_retyped,
1,
- retype(c->payload.depth[0].hw_reg, BRW_REGISTER_TYPE_UW),
- SURF_INDEX_TEXTURE(inst->tex_unit),
- inst->tex_unit, /* sampler */
- inst->writemask,
+ retype(depth_payload, BRW_REGISTER_TYPE_UW),
+ SURF_INDEX_TEXTURE(sampler),
+ sampler,
+ dst_flags & WRITEMASK_XYZW,
msg_type,
response_length,
cur_mrf - 1,
0,
1,
- BRW_SAMPLER_SIMD_MODE_SIMD16);
+ simd_mode);
}
/* Texturing operations:
*/
case OPCODE_TEX:
- emit_tex(c, inst, dst, dst_flags, args[0]);
+ emit_tex(c, dst, dst_flags, args[0], c->payload.depth[0].hw_reg,
+ inst->tex_idx, inst->tex_unit,
+ inst->tex_shadow);
break;
case OPCODE_TXB:
BRW_SAMPLER_SIMD_MODE_SIMD8);
}
-
-static void emit_tex(struct brw_wm_compile *c,
- const struct prog_instruction *inst)
-{
- struct brw_compile *p = &c->func;
- struct brw_reg dst[4], src[4], payload_reg;
- /* Note: TexSrcUnit was already looked up through SamplerTextures[] */
- const GLuint unit = inst->TexSrcUnit;
- GLuint msg_len;
- GLuint i, nr;
- GLuint emit;
- GLboolean shadow = (c->key.shadowtex_mask & (1<<unit)) ? 1 : 0;
- GLuint msg_type;
-
- assert(unit < BRW_MAX_TEX_UNIT);
-
- payload_reg = get_reg(c, PROGRAM_PAYLOAD, PAYLOAD_DEPTH, 0, 1, 0, 0);
-
- for (i = 0; i < 4; i++)
- dst[i] = get_dst_reg(c, inst, i);
- for (i = 0; i < 4; i++)
- src[i] = get_src_reg(c, inst, 0, i);
-
- switch (inst->TexSrcTarget) {
- case TEXTURE_1D_INDEX:
- emit = WRITEMASK_X;
- nr = 1;
- break;
- case TEXTURE_2D_INDEX:
- case TEXTURE_RECT_INDEX:
- emit = WRITEMASK_XY;
- nr = 2;
- break;
- case TEXTURE_3D_INDEX:
- case TEXTURE_CUBE_INDEX:
- emit = WRITEMASK_XYZ;
- nr = 3;
- break;
- default:
- /* invalid target */
- abort();
- }
- msg_len = 1;
-
- /* move/load S, T, R coords */
- for (i = 0; i < nr; i++) {
- static const GLuint swz[4] = {0,1,2,2};
- if (emit & (1<<i))
- brw_MOV(p, brw_message_reg(msg_len+1), src[swz[i]]);
- else
- brw_MOV(p, brw_message_reg(msg_len+1), brw_imm_f(0));
- msg_len += 1;
- }
-
- if (shadow) {
- brw_MOV(p, brw_message_reg(5), brw_imm_f(0)); /* lod / bias */
- brw_MOV(p, brw_message_reg(6), src[2]); /* ref value / R coord */
- }
-
- if (BRW_IS_IGDNG(p->brw)) {
- if (shadow)
- msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_COMPARE_IGDNG;
- else
- msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_IGDNG;
- } else {
- /* Does it work for shadow on SIMD8 ? */
- msg_type = BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE;
- }
-
- brw_SAMPLE(p,
- retype(vec8(dst[0]), BRW_REGISTER_TYPE_UW), /* dest */
- 1, /* msg_reg_nr */
- retype(payload_reg, BRW_REGISTER_TYPE_UW), /* src0 */
- SURF_INDEX_TEXTURE(unit),
- unit, /* sampler */
- inst->DstReg.WriteMask, /* writemask */
- msg_type, /* msg_type */
- 4, /* response_length */
- shadow ? 6 : 4, /* msg_length */
- 0, /* eot */
- 1,
- BRW_SAMPLER_SIMD_MODE_SIMD8);
-
- if (shadow)
- brw_MOV(p, dst[3], brw_imm_f(1.0));
-}
-
-
/**
* Resolve subroutine calls after code emit is done.
*/
emit_noise4(c, inst);
break;
case OPCODE_TEX:
- emit_tex(c, inst);
+ emit_tex(c, dst, dst_flags, args[0],
+ get_reg(c, PROGRAM_PAYLOAD, PAYLOAD_DEPTH,
+ 0, 1, 0, 0),
+ inst->TexSrcTarget,
+ inst->TexSrcUnit,
+ (c->key.shadowtex_mask & (1 << inst->TexSrcUnit)) != 0);
break;
case OPCODE_TXB:
emit_txb(c, inst);
projects / mesa.git / commitdiff