diff options
Diffstat (limited to 'src/gallium/drivers/i965simple/brw_wm_glsl.c')
-rw-r--r-- | src/gallium/drivers/i965simple/brw_wm_glsl.c | 1079 |
1 files changed, 1079 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 0000000..d95645d --- /dev/null +++ b/src/gallium/drivers/i965simple/brw_wm_glsl.c @@ -0,0 +1,1079 @@ + +#include "brw_context.h" +#include "brw_eu.h" +#include "brw_wm.h" +#include "pipe/p_util.h" +#include "pipe/p_shader_tokens.h" +#include "pipe/tgsi/util/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); + + /* Can't handle this, don't know if we need to: + */ + assert(src->SrcRegisterExtSwz.ExtDivide == TGSI_EXTSWIZZLE_ONE); + + /* 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; +} |