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path: root/src/gallium/drivers/i965simple/brw_wm_glsl.c
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Diffstat (limited to 'src/gallium/drivers/i965simple/brw_wm_glsl.c')
-rw-r--r--src/gallium/drivers/i965simple/brw_wm_glsl.c1076
1 files changed, 1076 insertions, 0 deletions
diff --git a/src/gallium/drivers/i965simple/brw_wm_glsl.c b/src/gallium/drivers/i965simple/brw_wm_glsl.c
new file mode 100644
index 00000000000..ab6410aa607
--- /dev/null
+++ b/src/gallium/drivers/i965simple/brw_wm_glsl.c
@@ -0,0 +1,1076 @@
+
+#include "brw_context.h"
+#include "brw_eu.h"
+#include "brw_wm.h"
+#include "util/u_math.h"
+#include "util/u_memory.h"
+#include "pipe/p_shader_tokens.h"
+#include "tgsi/tgsi_parse.h"
+
+
+
+static int get_scalar_dst_index(struct tgsi_full_instruction *inst)
+{
+ struct tgsi_dst_register dst = inst->FullDstRegisters[0].DstRegister;
+ int i;
+ for (i = 0; i < 4; i++)
+ if (dst.WriteMask & (1<<i))
+ break;
+ return i;
+}
+
+static struct brw_reg alloc_tmp(struct brw_wm_compile *c)
+{
+ c->tmp_index++;
+ c->reg_index = MAX2(c->reg_index, c->tmp_index);
+ return brw_vec8_grf(c->tmp_start + c->tmp_index, 0);
+}
+
+static void release_tmps(struct brw_wm_compile *c)
+{
+ c->tmp_index = 0;
+}
+
+
+static struct brw_reg
+get_reg(struct brw_wm_compile *c, int file, int index, int component )
+{
+ switch (file) {
+ case TGSI_FILE_NULL:
+ return brw_null_reg();
+
+ case TGSI_FILE_SAMPLER:
+ /* Should never get here:
+ */
+ assert (0);
+ return brw_null_reg();
+
+ case TGSI_FILE_IMMEDIATE:
+ /* These need a different path:
+ */
+ assert(0);
+ return brw_null_reg();
+
+
+ case TGSI_FILE_CONSTANT:
+ case TGSI_FILE_INPUT:
+ case TGSI_FILE_OUTPUT:
+ case TGSI_FILE_TEMPORARY:
+ case TGSI_FILE_ADDRESS:
+ return c->wm_regs[file][index][component];
+
+ default:
+ assert(0);
+ return brw_null_reg();
+ }
+}
+
+
+static struct brw_reg get_dst_reg(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst,
+ int component)
+{
+ return get_reg(c,
+ inst->FullDstRegisters[0].DstRegister.File,
+ inst->FullDstRegisters[0].DstRegister.Index,
+ component);
+}
+
+static int get_swz( struct tgsi_src_register src, int index )
+{
+ switch (index & 3) {
+ case 0: return src.SwizzleX;
+ case 1: return src.SwizzleY;
+ case 2: return src.SwizzleZ;
+ case 3: return src.SwizzleW;
+ default: return 0;
+ }
+}
+
+static int get_ext_swz( struct tgsi_src_register_ext_swz src, int index )
+{
+ switch (index & 3) {
+ case 0: return src.ExtSwizzleX;
+ case 1: return src.ExtSwizzleY;
+ case 2: return src.ExtSwizzleZ;
+ case 3: return src.ExtSwizzleW;
+ default: return 0;
+ }
+}
+
+static struct brw_reg get_src_reg(struct brw_wm_compile *c,
+ struct tgsi_full_src_register *src,
+ int index)
+{
+ struct brw_reg reg;
+ int component = index;
+ int neg = 0;
+ int abs = 0;
+
+ if (src->SrcRegister.Negate)
+ neg = 1;
+
+ component = get_swz(src->SrcRegister, component);
+
+ /* Yes, there are multiple negates:
+ */
+ switch (component & 3) {
+ case 0: neg ^= src->SrcRegisterExtSwz.NegateX; break;
+ case 1: neg ^= src->SrcRegisterExtSwz.NegateY; break;
+ case 2: neg ^= src->SrcRegisterExtSwz.NegateZ; break;
+ case 3: neg ^= src->SrcRegisterExtSwz.NegateW; break;
+ }
+
+ /* And multiple swizzles, fun isn't it:
+ */
+ component = get_ext_swz(src->SrcRegisterExtSwz, component);
+
+ /* Not handling indirect lookups yet:
+ */
+ assert(src->SrcRegister.Indirect == 0);
+
+ /* Don't know what dimension means:
+ */
+ assert(src->SrcRegister.Dimension == 0);
+
+ /* Will never handle any of this stuff:
+ */
+ assert(src->SrcRegisterExtMod.Complement == 0);
+ assert(src->SrcRegisterExtMod.Bias == 0);
+ assert(src->SrcRegisterExtMod.Scale2X == 0);
+
+ if (src->SrcRegisterExtMod.Absolute)
+ abs = 1;
+
+ /* Another negate! This is a post-absolute negate, which we
+ * can't do. Need to clean the crap out of tgsi somehow.
+ */
+ assert(src->SrcRegisterExtMod.Negate == 0);
+
+ switch( component ) {
+ case TGSI_EXTSWIZZLE_X:
+ case TGSI_EXTSWIZZLE_Y:
+ case TGSI_EXTSWIZZLE_Z:
+ case TGSI_EXTSWIZZLE_W:
+ reg = get_reg(c,
+ src->SrcRegister.File,
+ src->SrcRegister.Index,
+ component );
+
+ if (neg)
+ reg = negate(reg);
+
+ if (abs)
+ reg = brw_abs(reg);
+
+ break;
+
+ /* XXX: this won't really work in the general case, but we know
+ * that the extended swizzle is only allowed in the SWZ
+ * instruction (right??), in which case using an immediate
+ * directly will work.
+ */
+ case TGSI_EXTSWIZZLE_ZERO:
+ reg = brw_imm_f(0);
+ break;
+
+ case TGSI_EXTSWIZZLE_ONE:
+ if (neg && !abs)
+ reg = brw_imm_f(-1.0);
+ else
+ reg = brw_imm_f(1.0);
+ break;
+
+ default:
+ assert(0);
+ break;
+ }
+
+
+ return reg;
+}
+
+static void emit_abs( struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst)
+{
+ unsigned mask = inst->FullDstRegisters[0].DstRegister.WriteMask;
+
+ int i;
+ struct brw_compile *p = &c->func;
+ brw_set_saturate(p, inst->Instruction.Saturate != TGSI_SAT_NONE);
+ for (i = 0; i < 4; i++) {
+ if (mask & (1<<i)) {
+ struct brw_reg src, dst;
+ dst = get_dst_reg(c, inst, i);
+ src = get_src_reg(c, &inst->FullSrcRegisters[0], i);
+ brw_MOV(p, dst, brw_abs(src)); /* NOTE */
+ }
+ }
+ brw_set_saturate(p, 0);
+}
+
+
+static void emit_xpd(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst)
+{
+ int i;
+ struct brw_compile *p = &c->func;
+ unsigned mask = inst->FullDstRegisters[0].DstRegister.WriteMask;
+ for (i = 0; i < 4; i++) {
+ unsigned i2 = (i+2)%3;
+ unsigned i1 = (i+1)%3;
+ if (mask & (1<<i)) {
+ struct brw_reg src0, src1, dst;
+ dst = get_dst_reg(c, inst, i);
+ src0 = negate(get_src_reg(c, &inst->FullSrcRegisters[0], i2));
+ src1 = get_src_reg(c, &inst->FullSrcRegisters[1], i1);
+ brw_MUL(p, brw_null_reg(), src0, src1);
+ src0 = get_src_reg(c, &inst->FullSrcRegisters[0], i1);
+ src1 = get_src_reg(c, &inst->FullSrcRegisters[1], i2);
+ brw_set_saturate(p, inst->Instruction.Saturate != TGSI_SAT_NONE);
+ brw_MAC(p, dst, src0, src1);
+ brw_set_saturate(p, 0);
+ }
+ }
+ brw_set_saturate(p, 0);
+}
+
+static void emit_dp3(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst)
+{
+ struct brw_reg src0[3], src1[3], dst;
+ int i;
+ struct brw_compile *p = &c->func;
+ for (i = 0; i < 3; i++) {
+ src0[i] = get_src_reg(c, &inst->FullSrcRegisters[0], i);
+ src1[i] = get_src_reg(c, &inst->FullSrcRegisters[1], i);
+ }
+
+ dst = get_dst_reg(c, inst, get_scalar_dst_index(inst));
+ brw_MUL(p, brw_null_reg(), src0[0], src1[0]);
+ brw_MAC(p, brw_null_reg(), src0[1], src1[1]);
+ brw_set_saturate(p, (inst->Instruction.Saturate != TGSI_SAT_NONE) ? 1 : 0);
+ brw_MAC(p, dst, src0[2], src1[2]);
+ brw_set_saturate(p, 0);
+}
+
+static void emit_dp4(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst)
+{
+ struct brw_reg src0[4], src1[4], dst;
+ int i;
+ struct brw_compile *p = &c->func;
+ for (i = 0; i < 4; i++) {
+ src0[i] = get_src_reg(c, &inst->FullSrcRegisters[0], i);
+ src1[i] = get_src_reg(c, &inst->FullSrcRegisters[1], i);
+ }
+ dst = get_dst_reg(c, inst, get_scalar_dst_index(inst));
+ brw_MUL(p, brw_null_reg(), src0[0], src1[0]);
+ brw_MAC(p, brw_null_reg(), src0[1], src1[1]);
+ brw_MAC(p, brw_null_reg(), src0[2], src1[2]);
+ brw_set_saturate(p, (inst->Instruction.Saturate != TGSI_SAT_NONE) ? 1 : 0);
+ brw_MAC(p, dst, src0[3], src1[3]);
+ brw_set_saturate(p, 0);
+}
+
+static void emit_dph(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst)
+{
+ struct brw_reg src0[4], src1[4], dst;
+ int i;
+ struct brw_compile *p = &c->func;
+ for (i = 0; i < 4; i++) {
+ src0[i] = get_src_reg(c, &inst->FullSrcRegisters[0], i);
+ src1[i] = get_src_reg(c, &inst->FullSrcRegisters[1], i);
+ }
+ dst = get_dst_reg(c, inst, get_scalar_dst_index(inst));
+ brw_MUL(p, brw_null_reg(), src0[0], src1[0]);
+ brw_MAC(p, brw_null_reg(), src0[1], src1[1]);
+ brw_MAC(p, dst, src0[2], src1[2]);
+ brw_set_saturate(p, (inst->Instruction.Saturate != TGSI_SAT_NONE) ? 1 : 0);
+ brw_ADD(p, dst, src0[3], src1[3]);
+ brw_set_saturate(p, 0);
+}
+
+static void emit_math1(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst, unsigned func)
+{
+ struct brw_compile *p = &c->func;
+ struct brw_reg src0, dst;
+
+ src0 = get_src_reg(c, &inst->FullSrcRegisters[0], 0);
+ dst = get_dst_reg(c, inst, get_scalar_dst_index(inst));
+ brw_MOV(p, brw_message_reg(2), src0);
+ brw_math(p,
+ dst,
+ func,
+ ((inst->Instruction.Saturate != TGSI_SAT_NONE)
+ ? BRW_MATH_SATURATE_SATURATE
+ : BRW_MATH_SATURATE_NONE),
+ 2,
+ brw_null_reg(),
+ BRW_MATH_DATA_VECTOR,
+ BRW_MATH_PRECISION_FULL);
+}
+
+
+static void emit_alu2(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst,
+ unsigned opcode)
+{
+ struct brw_compile *p = &c->func;
+ struct brw_reg src0, src1, dst;
+ unsigned mask = inst->FullDstRegisters[0].DstRegister.WriteMask;
+ int i;
+ brw_set_saturate(p, (inst->Instruction.Saturate != TGSI_SAT_NONE) ? 1 : 0);
+ for (i = 0 ; i < 4; i++) {
+ if (mask & (1<<i)) {
+ dst = get_dst_reg(c, inst, i);
+ src0 = get_src_reg(c, &inst->FullSrcRegisters[0], i);
+ src1 = get_src_reg(c, &inst->FullSrcRegisters[1], i);
+ brw_alu2(p, opcode, dst, src0, src1);
+ }
+ }
+ brw_set_saturate(p, 0);
+}
+
+
+static void emit_alu1(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst,
+ unsigned opcode)
+{
+ struct brw_compile *p = &c->func;
+ struct brw_reg src0, dst;
+ unsigned mask = inst->FullDstRegisters[0].DstRegister.WriteMask;
+ int i;
+ brw_set_saturate(p, (inst->Instruction.Saturate != TGSI_SAT_NONE) ? 1 : 0);
+ for (i = 0 ; i < 4; i++) {
+ if (mask & (1<<i)) {
+ dst = get_dst_reg(c, inst, i);
+ src0 = get_src_reg(c, &inst->FullSrcRegisters[0], i);
+ brw_alu1(p, opcode, dst, src0);
+ }
+ }
+ if (inst->Instruction.Saturate != TGSI_SAT_NONE)
+ brw_set_saturate(p, 0);
+}
+
+
+static void emit_max(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst)
+{
+ struct brw_compile *p = &c->func;
+ unsigned mask = inst->FullDstRegisters[0].DstRegister.WriteMask;
+ struct brw_reg src0, src1, dst;
+ int i;
+ brw_push_insn_state(p);
+ for (i = 0; i < 4; i++) {
+ if (mask & (1<<i)) {
+ dst = get_dst_reg(c, inst, i);
+ src0 = get_src_reg(c, &inst->FullSrcRegisters[0], i);
+ src1 = get_src_reg(c, &inst->FullSrcRegisters[1], i);
+ brw_set_saturate(p, (inst->Instruction.Saturate != TGSI_SAT_NONE) ? 1 : 0);
+ brw_MOV(p, dst, src0);
+ brw_set_saturate(p, 0);
+
+ brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_L, src0, src1);
+ brw_set_saturate(p, (inst->Instruction.Saturate != TGSI_SAT_NONE) ? 1 : 0);
+ brw_set_predicate_control(p, BRW_PREDICATE_NORMAL);
+ brw_MOV(p, dst, src1);
+ brw_set_saturate(p, 0);
+ brw_set_predicate_control_flag_value(p, 0xff);
+ }
+ }
+ brw_pop_insn_state(p);
+}
+
+static void emit_min(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst)
+{
+ struct brw_compile *p = &c->func;
+ unsigned mask = inst->FullDstRegisters[0].DstRegister.WriteMask;
+ struct brw_reg src0, src1, dst;
+ int i;
+ brw_push_insn_state(p);
+ for (i = 0; i < 4; i++) {
+ if (mask & (1<<i)) {
+ dst = get_dst_reg(c, inst, i);
+ src0 = get_src_reg(c, &inst->FullSrcRegisters[0], i);
+ src1 = get_src_reg(c, &inst->FullSrcRegisters[1], i);
+ brw_set_saturate(p, (inst->Instruction.Saturate != TGSI_SAT_NONE) ? 1 : 0);
+ brw_MOV(p, dst, src0);
+ brw_set_saturate(p, 0);
+
+ brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_L, src1, src0);
+ brw_set_saturate(p, (inst->Instruction.Saturate != TGSI_SAT_NONE) ? 1 : 0);
+ brw_set_predicate_control(p, BRW_PREDICATE_NORMAL);
+ brw_MOV(p, dst, src1);
+ brw_set_saturate(p, 0);
+ brw_set_predicate_control_flag_value(p, 0xff);
+ }
+ }
+ brw_pop_insn_state(p);
+}
+
+static void emit_pow(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst)
+{
+ struct brw_compile *p = &c->func;
+ struct brw_reg dst, src0, src1;
+ dst = get_dst_reg(c, inst, get_scalar_dst_index(inst));
+ src0 = get_src_reg(c, &inst->FullSrcRegisters[0], 0);
+ src1 = get_src_reg(c, &inst->FullSrcRegisters[1], 0);
+
+ brw_MOV(p, brw_message_reg(2), src0);
+ brw_MOV(p, brw_message_reg(3), src1);
+
+ brw_math(p,
+ dst,
+ BRW_MATH_FUNCTION_POW,
+ (inst->Instruction.Saturate != TGSI_SAT_NONE
+ ? BRW_MATH_SATURATE_SATURATE
+ : BRW_MATH_SATURATE_NONE),
+ 2,
+ brw_null_reg(),
+ BRW_MATH_DATA_VECTOR,
+ BRW_MATH_PRECISION_FULL);
+}
+
+static void emit_lrp(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst)
+{
+ struct brw_compile *p = &c->func;
+ unsigned mask = inst->FullDstRegisters[0].DstRegister.WriteMask;
+ struct brw_reg dst, tmp1, tmp2, src0, src1, src2;
+ int i;
+ for (i = 0; i < 4; i++) {
+ if (mask & (1<<i)) {
+ dst = get_dst_reg(c, inst, i);
+ src0 = get_src_reg(c, &inst->FullSrcRegisters[0], i);
+
+ src1 = get_src_reg(c, &inst->FullSrcRegisters[1], i);
+
+ if (src1.nr == dst.nr) {
+ tmp1 = alloc_tmp(c);
+ brw_MOV(p, tmp1, src1);
+ } else
+ tmp1 = src1;
+
+ src2 = get_src_reg(c, &inst->FullSrcRegisters[2], i);
+ if (src2.nr == dst.nr) {
+ tmp2 = alloc_tmp(c);
+ brw_MOV(p, tmp2, src2);
+ } else
+ tmp2 = src2;
+
+ brw_ADD(p, dst, negate(src0), brw_imm_f(1.0));
+ brw_MUL(p, brw_null_reg(), dst, tmp2);
+ brw_set_saturate(p, (inst->Instruction.Saturate != TGSI_SAT_NONE) ? 1 : 0);
+ brw_MAC(p, dst, src0, tmp1);
+ brw_set_saturate(p, 0);
+ }
+ release_tmps(c);
+ }
+}
+
+static void emit_kil(struct brw_wm_compile *c)
+{
+ struct brw_compile *p = &c->func;
+ struct brw_reg depth = retype(brw_vec1_grf(0, 0), BRW_REGISTER_TYPE_UW);
+ brw_push_insn_state(p);
+ brw_set_mask_control(p, BRW_MASK_DISABLE);
+ brw_NOT(p, c->emit_mask_reg, brw_mask_reg(1)); //IMASK
+ brw_AND(p, depth, c->emit_mask_reg, depth);
+ brw_pop_insn_state(p);
+}
+
+static void emit_mad(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst)
+{
+ struct brw_compile *p = &c->func;
+ unsigned mask = inst->FullDstRegisters[0].DstRegister.WriteMask;
+ struct brw_reg dst, src0, src1, src2;
+ int i;
+
+ for (i = 0; i < 4; i++) {
+ if (mask & (1<<i)) {
+ dst = get_dst_reg(c, inst, i);
+ src0 = get_src_reg(c, &inst->FullSrcRegisters[0], i);
+ src1 = get_src_reg(c, &inst->FullSrcRegisters[1], i);
+ src2 = get_src_reg(c, &inst->FullSrcRegisters[2], i);
+ brw_MUL(p, dst, src0, src1);
+
+ brw_set_saturate(p, (inst->Instruction.Saturate != TGSI_SAT_NONE) ? 1 : 0);
+ brw_ADD(p, dst, dst, src2);
+ brw_set_saturate(p, 0);
+ }
+ }
+}
+
+static void emit_sop(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst, unsigned cond)
+{
+ struct brw_compile *p = &c->func;
+ unsigned mask = inst->FullDstRegisters[0].DstRegister.WriteMask;
+ struct brw_reg dst, src0, src1;
+ int i;
+
+ brw_push_insn_state(p);
+ for (i = 0; i < 4; i++) {
+ if (mask & (1<<i)) {
+ dst = get_dst_reg(c, inst, i);
+ src0 = get_src_reg(c, &inst->FullSrcRegisters[0], i);
+ src1 = get_src_reg(c, &inst->FullSrcRegisters[1], i);
+ brw_CMP(p, brw_null_reg(), cond, src0, src1);
+ brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+ brw_MOV(p, dst, brw_imm_f(0.0));
+ brw_set_predicate_control(p, BRW_PREDICATE_NORMAL);
+ brw_MOV(p, dst, brw_imm_f(1.0));
+ }
+ }
+ brw_pop_insn_state(p);
+}
+
+
+static void emit_ddx(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst)
+{
+ struct brw_compile *p = &c->func;
+ unsigned mask = inst->FullDstRegisters[0].DstRegister.WriteMask;
+ struct brw_reg interp[4];
+ struct brw_reg dst;
+ struct brw_reg src0, w;
+ unsigned nr, i;
+ src0 = get_src_reg(c, &inst->FullSrcRegisters[0], 0);
+ w = get_src_reg(c, &inst->FullSrcRegisters[1], 3);
+ nr = src0.nr;
+ interp[0] = brw_vec1_grf(nr, 0);
+ interp[1] = brw_vec1_grf(nr, 4);
+ interp[2] = brw_vec1_grf(nr+1, 0);
+ interp[3] = brw_vec1_grf(nr+1, 4);
+ brw_set_saturate(p, inst->Instruction.Saturate != TGSI_SAT_NONE);
+ for(i = 0; i < 4; i++ ) {
+ if (mask & (1<<i)) {
+ dst = get_dst_reg(c, inst, i);
+ brw_MOV(p, dst, interp[i]);
+ brw_MUL(p, dst, dst, w);
+ }
+ }
+ brw_set_saturate(p, 0);
+}
+
+static void emit_ddy(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst)
+{
+ struct brw_compile *p = &c->func;
+ unsigned mask = inst->FullDstRegisters[0].DstRegister.WriteMask;
+ struct brw_reg interp[4];
+ struct brw_reg dst;
+ struct brw_reg src0, w;
+ unsigned nr, i;
+
+ src0 = get_src_reg(c, &inst->FullSrcRegisters[0], 0);
+ nr = src0.nr;
+ w = get_src_reg(c, &inst->FullSrcRegisters[1], 3);
+ interp[0] = brw_vec1_grf(nr, 0);
+ interp[1] = brw_vec1_grf(nr, 4);
+ interp[2] = brw_vec1_grf(nr+1, 0);
+ interp[3] = brw_vec1_grf(nr+1, 4);
+ brw_set_saturate(p, inst->Instruction.Saturate != TGSI_SAT_NONE);
+ for(i = 0; i < 4; i++ ) {
+ if (mask & (1<<i)) {
+ dst = get_dst_reg(c, inst, i);
+ brw_MOV(p, dst, suboffset(interp[i], 1));
+ brw_MUL(p, dst, dst, w);
+ }
+ }
+ brw_set_saturate(p, 0);
+}
+
+/* TODO
+ BIAS on SIMD8 not workind yet...
+*/
+static void emit_txb(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst)
+{
+#if 0
+ struct brw_compile *p = &c->func;
+ struct brw_reg payload_reg = c->payload_depth[0];
+ struct brw_reg dst[4], src[4];
+ unsigned i;
+ 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->FullSrcRegisters[0], i);
+
+#if 0
+ switch (inst->TexSrcTarget) {
+ case TEXTURE_1D_INDEX:
+ brw_MOV(p, brw_message_reg(2), src[0]);
+ brw_MOV(p, brw_message_reg(3), brw_imm_f(0));
+ brw_MOV(p, brw_message_reg(4), brw_imm_f(0));
+ break;
+ case TEXTURE_2D_INDEX:
+ case TEXTURE_RECT_INDEX:
+ brw_MOV(p, brw_message_reg(2), src[0]);
+ brw_MOV(p, brw_message_reg(3), src[1]);
+ brw_MOV(p, brw_message_reg(4), brw_imm_f(0));
+ break;
+ default:
+ brw_MOV(p, brw_message_reg(2), src[0]);
+ brw_MOV(p, brw_message_reg(3), src[1]);
+ brw_MOV(p, brw_message_reg(4), src[2]);
+ break;
+ }
+#else
+ brw_MOV(p, brw_message_reg(2), src[0]);
+ brw_MOV(p, brw_message_reg(3), src[1]);
+ brw_MOV(p, brw_message_reg(4), brw_imm_f(0));
+#endif
+
+ brw_MOV(p, brw_message_reg(5), src[3]);
+ brw_MOV(p, brw_message_reg(6), brw_imm_f(0));
+ brw_SAMPLE(p,
+ retype(vec8(dst[0]), BRW_REGISTER_TYPE_UW),
+ 1,
+ retype(payload_reg, BRW_REGISTER_TYPE_UW),
+ inst->TexSrcUnit + 1, /* surface */
+ inst->TexSrcUnit, /* sampler */
+ inst->FullDstRegisters[0].DstRegister.WriteMask,
+ BRW_SAMPLER_MESSAGE_SIMD16_SAMPLE_BIAS,
+ 4,
+ 4,
+ 0);
+#endif
+}
+
+static void emit_tex(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst)
+{
+#if 0
+ struct brw_compile *p = &c->func;
+ struct brw_reg payload_reg = c->payload_depth[0];
+ struct brw_reg dst[4], src[4];
+ unsigned msg_len;
+ unsigned i, nr;
+ unsigned emit;
+ boolean shadow = (c->key.shadowtex_mask & (1<<inst->TexSrcUnit)) ? 1 : 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->FullSrcRegisters[0], i);
+
+#if 0
+ 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;
+ default:
+ emit = WRITEMASK_XYZ;
+ nr = 3;
+ break;
+ }
+#else
+ emit = WRITEMASK_XY;
+ nr = 2;
+#endif
+
+ msg_len = 1;
+
+ for (i = 0; i < nr; i++) {
+ static const unsigned 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));
+ brw_MOV(p, brw_message_reg(6), src[2]);
+ }
+
+ brw_SAMPLE(p,
+ retype(vec8(dst[0]), BRW_REGISTER_TYPE_UW),
+ 1,
+ retype(payload_reg, BRW_REGISTER_TYPE_UW),
+ inst->TexSrcUnit + 1, /* surface */
+ inst->TexSrcUnit, /* sampler */
+ inst->FullDstRegisters[0].DstRegister.WriteMask,
+ BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE,
+ 4,
+ shadow ? 6 : 4,
+ 0);
+
+ if (shadow)
+ brw_MOV(p, dst[3], brw_imm_f(1.0));
+#endif
+}
+
+
+
+
+
+
+
+
+static void emit_fb_write(struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst)
+{
+ struct brw_compile *p = &c->func;
+ int nr = 2;
+ int channel;
+ int base_reg = 0;
+
+ // src0 = output color
+ // src1 = payload_depth[0]
+ // src2 = output depth
+ // dst = ???
+
+
+
+ /* Reserve a space for AA - may not be needed:
+ */
+ if (c->key.aa_dest_stencil_reg)
+ nr += 1;
+
+ {
+ brw_push_insn_state(p);
+ for (channel = 0; channel < 4; channel++) {
+ struct brw_reg src0 = c->wm_regs[TGSI_FILE_OUTPUT][0][channel];
+
+ /* mov (8) m2.0<1>:ud r28.0<8;8,1>:ud { Align1 } */
+ /* mov (8) m6.0<1>:ud r29.0<8;8,1>:ud { Align1 SecHalf } */
+ brw_MOV(p, brw_message_reg(nr + channel), src0);
+ }
+ /* skip over the regs populated above: */
+ nr += 8;
+ brw_pop_insn_state(p);
+ }
+
+
+ /* Pass through control information:
+ */
+ /* mov (8) m1.0<1>:ud r1.0<8;8,1>:ud { Align1 NoMask } */
+ {
+ brw_push_insn_state(p);
+ brw_set_mask_control(p, BRW_MASK_DISABLE); /* ? */
+ brw_MOV(p,
+ brw_message_reg(base_reg + 1),
+ brw_vec8_grf(1, 0));
+ brw_pop_insn_state(p);
+ }
+
+ /* Send framebuffer write message: */
+ brw_fb_WRITE(p,
+ retype(vec8(brw_null_reg()), BRW_REGISTER_TYPE_UW),
+ base_reg,
+ retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UW),
+ 0, /* render surface always 0 */
+ nr,
+ 0,
+ 1);
+
+}
+
+
+static void brw_wm_emit_instruction( struct brw_wm_compile *c,
+ struct tgsi_full_instruction *inst )
+{
+ struct brw_compile *p = &c->func;
+
+#if 0
+ if (inst->CondUpdate)
+ brw_set_conditionalmod(p, BRW_CONDITIONAL_NZ);
+ else
+ brw_set_conditionalmod(p, BRW_CONDITIONAL_NONE);
+#else
+ brw_set_conditionalmod(p, BRW_CONDITIONAL_NONE);
+#endif
+
+ switch (inst->Instruction.Opcode) {
+ case TGSI_OPCODE_ABS:
+ emit_abs(c, inst);
+ break;
+ case TGSI_OPCODE_ADD:
+ emit_alu2(c, inst, BRW_OPCODE_ADD);
+ break;
+ case TGSI_OPCODE_SUB:
+ assert(0);
+// emit_alu2(c, inst, BRW_OPCODE_SUB);
+ break;
+ case TGSI_OPCODE_FRC:
+ emit_alu1(c, inst, BRW_OPCODE_FRC);
+ break;
+ case TGSI_OPCODE_FLR:
+ assert(0);
+// emit_alu1(c, inst, BRW_OPCODE_FLR);
+ break;
+ case TGSI_OPCODE_LRP:
+ emit_lrp(c, inst);
+ break;
+ case TGSI_OPCODE_INT:
+ emit_alu1(c, inst, BRW_OPCODE_RNDD);
+ break;
+ case TGSI_OPCODE_MOV:
+ emit_alu1(c, inst, BRW_OPCODE_MOV);
+ break;
+ case TGSI_OPCODE_DP3:
+ emit_dp3(c, inst);
+ break;
+ case TGSI_OPCODE_DP4:
+ emit_dp4(c, inst);
+ break;
+ case TGSI_OPCODE_XPD:
+ emit_xpd(c, inst);
+ break;
+ case TGSI_OPCODE_DPH:
+ emit_dph(c, inst);
+ break;
+ case TGSI_OPCODE_RCP:
+ emit_math1(c, inst, BRW_MATH_FUNCTION_INV);
+ break;
+ case TGSI_OPCODE_RSQ:
+ emit_math1(c, inst, BRW_MATH_FUNCTION_RSQ);
+ break;
+ case TGSI_OPCODE_SIN:
+ emit_math1(c, inst, BRW_MATH_FUNCTION_SIN);
+ break;
+ case TGSI_OPCODE_COS:
+ emit_math1(c, inst, BRW_MATH_FUNCTION_COS);
+ break;
+ case TGSI_OPCODE_EX2:
+ emit_math1(c, inst, BRW_MATH_FUNCTION_EXP);
+ break;
+ case TGSI_OPCODE_LG2:
+ emit_math1(c, inst, BRW_MATH_FUNCTION_LOG);
+ break;
+ case TGSI_OPCODE_MAX:
+ emit_max(c, inst);
+ break;
+ case TGSI_OPCODE_MIN:
+ emit_min(c, inst);
+ break;
+ case TGSI_OPCODE_DDX:
+ emit_ddx(c, inst);
+ break;
+ case TGSI_OPCODE_DDY:
+ emit_ddy(c, inst);
+ break;
+ case TGSI_OPCODE_SLT:
+ emit_sop(c, inst, BRW_CONDITIONAL_L);
+ break;
+ case TGSI_OPCODE_SLE:
+ emit_sop(c, inst, BRW_CONDITIONAL_LE);
+ break;
+ case TGSI_OPCODE_SGT:
+ emit_sop(c, inst, BRW_CONDITIONAL_G);
+ break;
+ case TGSI_OPCODE_SGE:
+ emit_sop(c, inst, BRW_CONDITIONAL_GE);
+ break;
+ case TGSI_OPCODE_SEQ:
+ emit_sop(c, inst, BRW_CONDITIONAL_EQ);
+ break;
+ case TGSI_OPCODE_SNE:
+ emit_sop(c, inst, BRW_CONDITIONAL_NEQ);
+ break;
+ case TGSI_OPCODE_MUL:
+ emit_alu2(c, inst, BRW_OPCODE_MUL);
+ break;
+ case TGSI_OPCODE_POW:
+ emit_pow(c, inst);
+ break;
+ case TGSI_OPCODE_MAD:
+ emit_mad(c, inst);
+ break;
+ case TGSI_OPCODE_TEX:
+ emit_tex(c, inst);
+ break;
+ case TGSI_OPCODE_TXB:
+ emit_txb(c, inst);
+ break;
+ case TGSI_OPCODE_TEXKILL:
+ emit_kil(c);
+ break;
+ case TGSI_OPCODE_IF:
+ assert(c->if_insn < MAX_IFSN);
+ c->if_inst[c->if_insn++] = brw_IF(p, BRW_EXECUTE_8);
+ break;
+ case TGSI_OPCODE_ELSE:
+ c->if_inst[c->if_insn-1] = brw_ELSE(p, c->if_inst[c->if_insn-1]);
+ break;
+ case TGSI_OPCODE_ENDIF:
+ assert(c->if_insn > 0);
+ brw_ENDIF(p, c->if_inst[--c->if_insn]);
+ break;
+ case TGSI_OPCODE_BGNSUB:
+ case TGSI_OPCODE_ENDSUB:
+ break;
+ case TGSI_OPCODE_CAL:
+ brw_push_insn_state(p);
+ brw_set_mask_control(p, BRW_MASK_DISABLE);
+ brw_set_access_mode(p, BRW_ALIGN_1);
+ brw_ADD(p, deref_1ud(c->stack_index, 0), brw_ip_reg(), brw_imm_d(3*16));
+ brw_set_access_mode(p, BRW_ALIGN_16);
+ brw_ADD(p,
+ get_addr_reg(c->stack_index),
+ get_addr_reg(c->stack_index), brw_imm_d(4));
+// orig_inst = inst->Data;
+// orig_inst->Data = &p->store[p->nr_insn];
+ assert(0);
+ brw_ADD(p, brw_ip_reg(), brw_ip_reg(), brw_imm_d(1*16));
+ brw_pop_insn_state(p);
+ break;
+
+ case TGSI_OPCODE_RET:
+#if 0
+ brw_push_insn_state(p);
+ brw_set_mask_control(p, BRW_MASK_DISABLE);
+ brw_ADD(p,
+ get_addr_reg(c->stack_index),
+ get_addr_reg(c->stack_index), brw_imm_d(-4));
+ brw_set_access_mode(p, BRW_ALIGN_1);
+ brw_MOV(p, brw_ip_reg(), deref_1ud(c->stack_index, 0));
+ brw_set_access_mode(p, BRW_ALIGN_16);
+ brw_pop_insn_state(p);
+#else
+ emit_fb_write(c, inst);
+#endif
+
+ break;
+ case TGSI_OPCODE_LOOP:
+ c->loop_inst[c->loop_insn++] = brw_DO(p, BRW_EXECUTE_8);
+ break;
+ case TGSI_OPCODE_BRK:
+ brw_BREAK(p);
+ brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+ break;
+ case TGSI_OPCODE_CONT:
+ brw_CONT(p);
+ brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+ break;
+ case TGSI_OPCODE_ENDLOOP:
+ c->loop_insn--;
+ c->inst0 = c->inst1 = brw_WHILE(p, c->loop_inst[c->loop_insn]);
+ /* patch all the BREAK instructions from
+ last BEGINLOOP */
+ while (c->inst0 > c->loop_inst[c->loop_insn]) {
+ c->inst0--;
+ if (c->inst0->header.opcode == BRW_OPCODE_BREAK) {
+ c->inst0->bits3.if_else.jump_count = c->inst1 - c->inst0 + 1;
+ c->inst0->bits3.if_else.pop_count = 0;
+ } else if (c->inst0->header.opcode == BRW_OPCODE_CONTINUE) {
+ c->inst0->bits3.if_else.jump_count = c->inst1 - c->inst0;
+ c->inst0->bits3.if_else.pop_count = 0;
+ }
+ }
+ break;
+ case TGSI_OPCODE_END:
+ emit_fb_write(c, inst);
+ break;
+
+ default:
+ debug_printf("unsupported IR in fragment shader %d\n",
+ inst->Instruction.Opcode);
+ }
+#if 0
+ if (inst->CondUpdate)
+ brw_set_predicate_control(p, BRW_PREDICATE_NORMAL);
+ else
+ brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+#endif
+}
+
+
+
+
+
+
+void brw_wm_glsl_emit(struct brw_wm_compile *c)
+{
+ struct tgsi_parse_context parse;
+ struct brw_compile *p = &c->func;
+
+ brw_init_compile(&c->func);
+ brw_set_compression_control(p, BRW_COMPRESSION_NONE);
+
+ c->reg_index = 0;
+ c->if_insn = 0;
+ c->loop_insn = 0;
+ c->stack_index = brw_indirect(0,0);
+
+ /* Do static register allocation and parameter interpolation:
+ */
+ brw_wm_emit_decls( c );
+
+ /* Emit the actual program. All done with very direct translation,
+ * hopefully we can improve on this shortly...
+ */
+ brw_MOV(p, get_addr_reg(c->stack_index), brw_address(c->stack));
+
+ tgsi_parse_init( &parse, c->fp->program.tokens );
+
+ while( !tgsi_parse_end_of_tokens( &parse ) )
+ {
+ tgsi_parse_token( &parse );
+
+ switch( parse.FullToken.Token.Type ) {
+ case TGSI_TOKEN_TYPE_DECLARATION:
+ /* already done */
+ break;
+
+ case TGSI_TOKEN_TYPE_IMMEDIATE:
+ /* not handled yet */
+ assert(0);
+ break;
+
+ case TGSI_TOKEN_TYPE_INSTRUCTION:
+ brw_wm_emit_instruction(c, &parse.FullToken.FullInstruction);
+ break;
+
+ default:
+ assert( 0 );
+ }
+ }
+
+ tgsi_parse_free (&parse);
+
+ /* Fix up call targets:
+ */
+#if 0
+ {
+ unsigned nr_insns = c->fp->program.Base.NumInstructions;
+ unsigned insn, target_insn;
+ struct tgsi_full_instruction *inst1, *inst2;
+ struct brw_instruction *brw_inst1, *brw_inst2;
+ int offset;
+ for (insn = 0; insn < nr_insns; insn++) {
+ inst1 = &c->fp->program.Base.Instructions[insn];
+ brw_inst1 = inst1->Data;
+ switch (inst1->Opcode) {
+ case TGSI_OPCODE_CAL:
+ target_insn = inst1->BranchTarget;
+ inst2 = &c->fp->program.Base.Instructions[target_insn];
+ brw_inst2 = inst2->Data;
+ offset = brw_inst2 - brw_inst1;
+ brw_set_src1(brw_inst1, brw_imm_d(offset*16));
+ break;
+ default:
+ break;
+ }
+ }
+ }
+#endif
+
+ c->prog_data.total_grf = c->reg_index;
+ c->prog_data.total_scratch = 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-27 05:12:45 +0000