diff options
Diffstat (limited to 'src/gallium/drivers/nvfx/nvfx_fragprog.c')
| -rw-r--r-- | src/gallium/drivers/nvfx/nvfx_fragprog.c | 951 |
1 files changed, 951 insertions, 0 deletions
diff --git a/src/gallium/drivers/nvfx/nvfx_fragprog.c b/src/gallium/drivers/nvfx/nvfx_fragprog.c new file mode 100644 index 0000000000..b9c91cec8c --- /dev/null +++ b/src/gallium/drivers/nvfx/nvfx_fragprog.c @@ -0,0 +1,951 @@ +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_state.h" +#include "util/u_inlines.h" + +#include "pipe/p_shader_tokens.h" +#include "tgsi/tgsi_parse.h" +#include "tgsi/tgsi_util.h" + +#include "nvfx_context.h" +#include "nvfx_shader.h" + +#define MAX_CONSTS 128 +#define MAX_IMM 32 +struct nvfx_fpc { + struct nvfx_fragment_program *fp; + + uint attrib_map[PIPE_MAX_SHADER_INPUTS]; + + unsigned r_temps; + unsigned r_temps_discard; + struct nvfx_sreg r_result[PIPE_MAX_SHADER_OUTPUTS]; + struct nvfx_sreg *r_temp; + + int num_regs; + + unsigned inst_offset; + unsigned have_const; + + struct { + int pipe; + float vals[4]; + } consts[MAX_CONSTS]; + int nr_consts; + + struct nvfx_sreg imm[MAX_IMM]; + unsigned nr_imm; +}; + +static INLINE struct nvfx_sreg +temp(struct nvfx_fpc *fpc) +{ + int idx = ffs(~fpc->r_temps) - 1; + + if (idx < 0) { + NOUVEAU_ERR("out of temps!!\n"); + assert(0); + return nvfx_sr(NVFXSR_TEMP, 0); + } + + fpc->r_temps |= (1 << idx); + fpc->r_temps_discard |= (1 << idx); + return nvfx_sr(NVFXSR_TEMP, idx); +} + +static INLINE void +release_temps(struct nvfx_fpc *fpc) +{ + fpc->r_temps &= ~fpc->r_temps_discard; + fpc->r_temps_discard = 0; +} + +static INLINE struct nvfx_sreg +constant(struct nvfx_fpc *fpc, int pipe, float vals[4]) +{ + int idx; + + if (fpc->nr_consts == MAX_CONSTS) + assert(0); + idx = fpc->nr_consts++; + + fpc->consts[idx].pipe = pipe; + if (pipe == -1) + memcpy(fpc->consts[idx].vals, vals, 4 * sizeof(float)); + return nvfx_sr(NVFXSR_CONST, idx); +} + +#define arith(cc,s,o,d,m,s0,s1,s2) \ + nvfx_fp_arith((cc), (s), NVFX_FP_OP_OPCODE_##o, \ + (d), (m), (s0), (s1), (s2)) +#define tex(cc,s,o,u,d,m,s0,s1,s2) \ + nvfx_fp_tex((cc), (s), NVFX_FP_OP_OPCODE_##o, (u), \ + (d), (m), (s0), none, none) + +static void +grow_insns(struct nvfx_fpc *fpc, int size) +{ + struct nvfx_fragment_program *fp = fpc->fp; + + fp->insn_len += size; + fp->insn = realloc(fp->insn, sizeof(uint32_t) * fp->insn_len); +} + +static void +emit_src(struct nvfx_fpc *fpc, int pos, struct nvfx_sreg src) +{ + struct nvfx_fragment_program *fp = fpc->fp; + uint32_t *hw = &fp->insn[fpc->inst_offset]; + uint32_t sr = 0; + + switch (src.type) { + case NVFXSR_INPUT: + sr |= (NVFX_FP_REG_TYPE_INPUT << NVFX_FP_REG_TYPE_SHIFT); + hw[0] |= (src.index << NVFX_FP_OP_INPUT_SRC_SHIFT); + break; + case NVFXSR_OUTPUT: + sr |= NVFX_FP_REG_SRC_HALF; + /* fall-through */ + case NVFXSR_TEMP: + sr |= (NVFX_FP_REG_TYPE_TEMP << NVFX_FP_REG_TYPE_SHIFT); + sr |= (src.index << NVFX_FP_REG_SRC_SHIFT); + break; + case NVFXSR_CONST: + if (!fpc->have_const) { + grow_insns(fpc, 4); + fpc->have_const = 1; + } + + hw = &fp->insn[fpc->inst_offset]; + if (fpc->consts[src.index].pipe >= 0) { + struct nvfx_fragment_program_data *fpd; + + fp->consts = realloc(fp->consts, ++fp->nr_consts * + sizeof(*fpd)); + fpd = &fp->consts[fp->nr_consts - 1]; + fpd->offset = fpc->inst_offset + 4; + fpd->index = fpc->consts[src.index].pipe; + memset(&fp->insn[fpd->offset], 0, sizeof(uint32_t) * 4); + } else { + memcpy(&fp->insn[fpc->inst_offset + 4], + fpc->consts[src.index].vals, + sizeof(uint32_t) * 4); + } + + sr |= (NVFX_FP_REG_TYPE_CONST << NVFX_FP_REG_TYPE_SHIFT); + break; + case NVFXSR_NONE: + sr |= (NVFX_FP_REG_TYPE_INPUT << NVFX_FP_REG_TYPE_SHIFT); + break; + default: + assert(0); + } + + if (src.negate) + sr |= NVFX_FP_REG_NEGATE; + + if (src.abs) + hw[1] |= (1 << (29 + pos)); + + sr |= ((src.swz[0] << NVFX_FP_REG_SWZ_X_SHIFT) | + (src.swz[1] << NVFX_FP_REG_SWZ_Y_SHIFT) | + (src.swz[2] << NVFX_FP_REG_SWZ_Z_SHIFT) | + (src.swz[3] << NVFX_FP_REG_SWZ_W_SHIFT)); + + hw[pos + 1] |= sr; +} + +static void +emit_dst(struct nvfx_fpc *fpc, struct nvfx_sreg dst) +{ + struct nvfx_fragment_program *fp = fpc->fp; + uint32_t *hw = &fp->insn[fpc->inst_offset]; + + switch (dst.type) { + case NVFXSR_TEMP: + if (fpc->num_regs < (dst.index + 1)) + fpc->num_regs = dst.index + 1; + break; + case NVFXSR_OUTPUT: + if (dst.index == 1) { + fp->fp_control |= 0xe; + } else { + hw[0] |= NVFX_FP_OP_OUT_REG_HALF; + } + break; + case NVFXSR_NONE: + hw[0] |= (1 << 30); + break; + default: + assert(0); + } + + hw[0] |= (dst.index << NVFX_FP_OP_OUT_REG_SHIFT); +} + +static void +nvfx_fp_arith(struct nvfx_fpc *fpc, int sat, int op, + struct nvfx_sreg dst, int mask, + struct nvfx_sreg s0, struct nvfx_sreg s1, struct nvfx_sreg s2) +{ + struct nvfx_fragment_program *fp = fpc->fp; + uint32_t *hw; + + fpc->inst_offset = fp->insn_len; + fpc->have_const = 0; + grow_insns(fpc, 4); + hw = &fp->insn[fpc->inst_offset]; + memset(hw, 0, sizeof(uint32_t) * 4); + + if (op == NVFX_FP_OP_OPCODE_KIL) + fp->fp_control |= NV34TCL_FP_CONTROL_USES_KIL; + hw[0] |= (op << NVFX_FP_OP_OPCODE_SHIFT); + hw[0] |= (mask << NVFX_FP_OP_OUTMASK_SHIFT); + hw[2] |= (dst.dst_scale << NVFX_FP_OP_DST_SCALE_SHIFT); + + if (sat) + hw[0] |= NVFX_FP_OP_OUT_SAT; + + if (dst.cc_update) + hw[0] |= NVFX_FP_OP_COND_WRITE_ENABLE; + hw[1] |= (dst.cc_test << NVFX_FP_OP_COND_SHIFT); + hw[1] |= ((dst.cc_swz[0] << NVFX_FP_OP_COND_SWZ_X_SHIFT) | + (dst.cc_swz[1] << NVFX_FP_OP_COND_SWZ_Y_SHIFT) | + (dst.cc_swz[2] << NVFX_FP_OP_COND_SWZ_Z_SHIFT) | + (dst.cc_swz[3] << NVFX_FP_OP_COND_SWZ_W_SHIFT)); + + emit_dst(fpc, dst); + emit_src(fpc, 0, s0); + emit_src(fpc, 1, s1); + emit_src(fpc, 2, s2); +} + +static void +nvfx_fp_tex(struct nvfx_fpc *fpc, int sat, int op, int unit, + struct nvfx_sreg dst, int mask, + struct nvfx_sreg s0, struct nvfx_sreg s1, struct nvfx_sreg s2) +{ + struct nvfx_fragment_program *fp = fpc->fp; + + nvfx_fp_arith(fpc, sat, op, dst, mask, s0, s1, s2); + + fp->insn[fpc->inst_offset] |= (unit << NVFX_FP_OP_TEX_UNIT_SHIFT); + fp->samplers |= (1 << unit); +} + +static INLINE struct nvfx_sreg +tgsi_src(struct nvfx_fpc *fpc, const struct tgsi_full_src_register *fsrc) +{ + struct nvfx_sreg src; + + switch (fsrc->Register.File) { + case TGSI_FILE_INPUT: + src = nvfx_sr(NVFXSR_INPUT, + fpc->attrib_map[fsrc->Register.Index]); + break; + case TGSI_FILE_CONSTANT: + src = constant(fpc, fsrc->Register.Index, NULL); + break; + case TGSI_FILE_IMMEDIATE: + assert(fsrc->Register.Index < fpc->nr_imm); + src = fpc->imm[fsrc->Register.Index]; + break; + case TGSI_FILE_TEMPORARY: + src = fpc->r_temp[fsrc->Register.Index]; + break; + /* NV40 fragprog result regs are just temps, so this is simple */ + case TGSI_FILE_OUTPUT: + src = fpc->r_result[fsrc->Register.Index]; + break; + default: + NOUVEAU_ERR("bad src file\n"); + break; + } + + src.abs = fsrc->Register.Absolute; + src.negate = fsrc->Register.Negate; + src.swz[0] = fsrc->Register.SwizzleX; + src.swz[1] = fsrc->Register.SwizzleY; + src.swz[2] = fsrc->Register.SwizzleZ; + src.swz[3] = fsrc->Register.SwizzleW; + return src; +} + +static INLINE struct nvfx_sreg +tgsi_dst(struct nvfx_fpc *fpc, const struct tgsi_full_dst_register *fdst) { + switch (fdst->Register.File) { + case TGSI_FILE_OUTPUT: + return fpc->r_result[fdst->Register.Index]; + case TGSI_FILE_TEMPORARY: + return fpc->r_temp[fdst->Register.Index]; + case TGSI_FILE_NULL: + return nvfx_sr(NVFXSR_NONE, 0); + default: + NOUVEAU_ERR("bad dst file %d\n", fdst->Register.File); + return nvfx_sr(NVFXSR_NONE, 0); + } +} + +static INLINE int +tgsi_mask(uint tgsi) +{ + int mask = 0; + + if (tgsi & TGSI_WRITEMASK_X) mask |= NVFX_FP_MASK_X; + if (tgsi & TGSI_WRITEMASK_Y) mask |= NVFX_FP_MASK_Y; + if (tgsi & TGSI_WRITEMASK_Z) mask |= NVFX_FP_MASK_Z; + if (tgsi & TGSI_WRITEMASK_W) mask |= NVFX_FP_MASK_W; + return mask; +} + +static boolean +nvfx_fragprog_parse_instruction(struct nvfx_context* nvfx, struct nvfx_fpc *fpc, + const struct tgsi_full_instruction *finst) +{ + const struct nvfx_sreg none = nvfx_sr(NVFXSR_NONE, 0); + struct nvfx_sreg src[3], dst, tmp; + int mask, sat, unit; + int ai = -1, ci = -1, ii = -1; + int i; + + if (finst->Instruction.Opcode == TGSI_OPCODE_END) + return TRUE; + + for (i = 0; i < finst->Instruction.NumSrcRegs; i++) { + const struct tgsi_full_src_register *fsrc; + + fsrc = &finst->Src[i]; + if (fsrc->Register.File == TGSI_FILE_TEMPORARY) { + src[i] = tgsi_src(fpc, fsrc); + } + } + + for (i = 0; i < finst->Instruction.NumSrcRegs; i++) { + const struct tgsi_full_src_register *fsrc; + + fsrc = &finst->Src[i]; + + switch (fsrc->Register.File) { + case TGSI_FILE_INPUT: + if (ai == -1 || ai == fsrc->Register.Index) { + ai = fsrc->Register.Index; + src[i] = tgsi_src(fpc, fsrc); + } else { + src[i] = temp(fpc); + arith(fpc, 0, MOV, src[i], NVFX_FP_MASK_ALL, + tgsi_src(fpc, fsrc), none, none); + } + break; + case TGSI_FILE_CONSTANT: + if ((ci == -1 && ii == -1) || + ci == fsrc->Register.Index) { + ci = fsrc->Register.Index; + src[i] = tgsi_src(fpc, fsrc); + } else { + src[i] = temp(fpc); + arith(fpc, 0, MOV, src[i], NVFX_FP_MASK_ALL, + tgsi_src(fpc, fsrc), none, none); + } + break; + case TGSI_FILE_IMMEDIATE: + if ((ci == -1 && ii == -1) || + ii == fsrc->Register.Index) { + ii = fsrc->Register.Index; + src[i] = tgsi_src(fpc, fsrc); + } else { + src[i] = temp(fpc); + arith(fpc, 0, MOV, src[i], NVFX_FP_MASK_ALL, + tgsi_src(fpc, fsrc), none, none); + } + break; + case TGSI_FILE_TEMPORARY: + /* handled above */ + break; + case TGSI_FILE_SAMPLER: + unit = fsrc->Register.Index; + break; + case TGSI_FILE_OUTPUT: + break; + default: + NOUVEAU_ERR("bad src file\n"); + return FALSE; + } + } + + dst = tgsi_dst(fpc, &finst->Dst[0]); + mask = tgsi_mask(finst->Dst[0].Register.WriteMask); + sat = (finst->Instruction.Saturate == TGSI_SAT_ZERO_ONE); + + switch (finst->Instruction.Opcode) { + case TGSI_OPCODE_ABS: + arith(fpc, sat, MOV, dst, mask, abs(src[0]), none, none); + break; + case TGSI_OPCODE_ADD: + arith(fpc, sat, ADD, dst, mask, src[0], src[1], none); + break; + case TGSI_OPCODE_CMP: + tmp = nvfx_sr(NVFXSR_NONE, 0); + tmp.cc_update = 1; + arith(fpc, 0, MOV, tmp, 0xf, src[0], none, none); + dst.cc_test = NVFX_COND_GE; + arith(fpc, sat, MOV, dst, mask, src[2], none, none); + dst.cc_test = NVFX_COND_LT; + arith(fpc, sat, MOV, dst, mask, src[1], none, none); + break; + case TGSI_OPCODE_COS: + arith(fpc, sat, COS, dst, mask, src[0], none, none); + break; + case TGSI_OPCODE_DDX: + if (mask & (NVFX_FP_MASK_Z | NVFX_FP_MASK_W)) { + tmp = temp(fpc); + arith(fpc, sat, DDX, tmp, NVFX_FP_MASK_X | NVFX_FP_MASK_Y, + swz(src[0], Z, W, Z, W), none, none); + arith(fpc, 0, MOV, tmp, NVFX_FP_MASK_Z | NVFX_FP_MASK_W, + swz(tmp, X, Y, X, Y), none, none); + arith(fpc, sat, DDX, tmp, NVFX_FP_MASK_X | NVFX_FP_MASK_Y, src[0], + none, none); + arith(fpc, 0, MOV, dst, mask, tmp, none, none); + } else { + arith(fpc, sat, DDX, dst, mask, src[0], none, none); + } + break; + case TGSI_OPCODE_DDY: + if (mask & (NVFX_FP_MASK_Z | NVFX_FP_MASK_W)) { + tmp = temp(fpc); + arith(fpc, sat, DDY, tmp, NVFX_FP_MASK_X | NVFX_FP_MASK_Y, + swz(src[0], Z, W, Z, W), none, none); + arith(fpc, 0, MOV, tmp, NVFX_FP_MASK_Z | NVFX_FP_MASK_W, + swz(tmp, X, Y, X, Y), none, none); + arith(fpc, sat, DDY, tmp, NVFX_FP_MASK_X | NVFX_FP_MASK_Y, src[0], + none, none); + arith(fpc, 0, MOV, dst, mask, tmp, none, none); + } else { + arith(fpc, sat, DDY, dst, mask, src[0], none, none); + } + break; + case TGSI_OPCODE_DP3: + arith(fpc, sat, DP3, dst, mask, src[0], src[1], none); + break; + case TGSI_OPCODE_DP4: + arith(fpc, sat, DP4, dst, mask, src[0], src[1], none); + break; + case TGSI_OPCODE_DPH: + tmp = temp(fpc); + arith(fpc, 0, DP3, tmp, NVFX_FP_MASK_X, src[0], src[1], none); + arith(fpc, sat, ADD, dst, mask, swz(tmp, X, X, X, X), + swz(src[1], W, W, W, W), none); + break; + case TGSI_OPCODE_DST: + arith(fpc, sat, DST, dst, mask, src[0], src[1], none); + break; + case TGSI_OPCODE_EX2: + arith(fpc, sat, EX2, dst, mask, src[0], none, none); + break; + case TGSI_OPCODE_FLR: + arith(fpc, sat, FLR, dst, mask, src[0], none, none); + break; + case TGSI_OPCODE_FRC: + arith(fpc, sat, FRC, dst, mask, src[0], none, none); + break; + case TGSI_OPCODE_KILP: + arith(fpc, 0, KIL, none, 0, none, none, none); + break; + case TGSI_OPCODE_KIL: + dst = nvfx_sr(NVFXSR_NONE, 0); + dst.cc_update = 1; + arith(fpc, 0, MOV, dst, NVFX_FP_MASK_ALL, src[0], none, none); + dst.cc_update = 0; dst.cc_test = NVFX_COND_LT; + arith(fpc, 0, KIL, dst, 0, none, none, none); + break; + case TGSI_OPCODE_LG2: + arith(fpc, sat, LG2, dst, mask, src[0], none, none); + break; +// case TGSI_OPCODE_LIT: + case TGSI_OPCODE_LRP: + if(!nvfx->is_nv4x) + arith(fpc, sat, LRP_NV30, dst, mask, src[0], src[1], src[2]); + else { + tmp = temp(fpc); + arith(fpc, 0, MAD, tmp, mask, neg(src[0]), src[2], src[2]); + arith(fpc, sat, MAD, dst, mask, src[0], src[1], tmp); + } + break; + case TGSI_OPCODE_MAD: + arith(fpc, sat, MAD, dst, mask, src[0], src[1], src[2]); + break; + case TGSI_OPCODE_MAX: + arith(fpc, sat, MAX, dst, mask, src[0], src[1], none); + break; + case TGSI_OPCODE_MIN: + arith(fpc, sat, MIN, dst, mask, src[0], src[1], none); + break; + case TGSI_OPCODE_MOV: + arith(fpc, sat, MOV, dst, mask, src[0], none, none); + break; + case TGSI_OPCODE_MUL: + arith(fpc, sat, MUL, dst, mask, src[0], src[1], none); + break; + case TGSI_OPCODE_POW: + if(!nvfx->is_nv4x) + arith(fpc, sat, POW_NV30, dst, mask, src[0], src[1], none); + else { + tmp = temp(fpc); + arith(fpc, 0, LG2, tmp, NVFX_FP_MASK_X, + swz(src[0], X, X, X, X), none, none); + arith(fpc, 0, MUL, tmp, NVFX_FP_MASK_X, swz(tmp, X, X, X, X), + swz(src[1], X, X, X, X), none); + arith(fpc, sat, EX2, dst, mask, + swz(tmp, X, X, X, X), none, none); + } + break; + case TGSI_OPCODE_RCP: + arith(fpc, sat, RCP, dst, mask, src[0], none, none); + break; + case TGSI_OPCODE_RET: + assert(0); + break; + case TGSI_OPCODE_RFL: + if(!nvfx->is_nv4x) + arith(fpc, 0, RFL_NV30, dst, mask, src[0], src[1], none); + else { + tmp = temp(fpc); + arith(fpc, 0, DP3, tmp, NVFX_FP_MASK_X, src[0], src[0], none); + arith(fpc, 0, DP3, tmp, NVFX_FP_MASK_Y, src[0], src[1], none); + arith(fpc, 0, DIV, scale(tmp, 2X), NVFX_FP_MASK_Z, + swz(tmp, Y, Y, Y, Y), swz(tmp, X, X, X, X), none); + arith(fpc, sat, MAD, dst, mask, + swz(tmp, Z, Z, Z, Z), src[0], neg(src[1])); + } + break; + case TGSI_OPCODE_RSQ: + if(!nvfx->is_nv4x) + arith(fpc, sat, RSQ_NV30, dst, mask, abs(swz(src[0], X, X, X, X)), none, none); + else { + tmp = temp(fpc); + arith(fpc, 0, LG2, scale(tmp, INV_2X), NVFX_FP_MASK_X, + abs(swz(src[0], X, X, X, X)), none, none); + arith(fpc, sat, EX2, dst, mask, + neg(swz(tmp, X, X, X, X)), none, none); + } + break; + case TGSI_OPCODE_SCS: + /* avoid overwriting the source */ + if(src[0].swz[NVFX_SWZ_X] != NVFX_SWZ_X) + { + if (mask & NVFX_FP_MASK_X) { + arith(fpc, sat, COS, dst, NVFX_FP_MASK_X, + swz(src[0], X, X, X, X), none, none); + } + if (mask & NVFX_FP_MASK_Y) { + arith(fpc, sat, SIN, dst, NVFX_FP_MASK_Y, + swz(src[0], X, X, X, X), none, none); + } + } + else + { + if (mask & NVFX_FP_MASK_Y) { + arith(fpc, sat, SIN, dst, NVFX_FP_MASK_Y, + swz(src[0], X, X, X, X), none, none); + } + if (mask & NVFX_FP_MASK_X) { + arith(fpc, sat, COS, dst, NVFX_FP_MASK_X, + swz(src[0], X, X, X, X), none, none); + } + } + break; + case TGSI_OPCODE_SEQ: + arith(fpc, sat, SEQ, dst, mask, src[0], src[1], none); + break; + case TGSI_OPCODE_SFL: + arith(fpc, sat, SFL, dst, mask, src[0], src[1], none); + break; + case TGSI_OPCODE_SGE: + arith(fpc, sat, SGE, dst, mask, src[0], src[1], none); + break; + case TGSI_OPCODE_SGT: + arith(fpc, sat, SGT, dst, mask, src[0], src[1], none); + break; + case TGSI_OPCODE_SIN: + arith(fpc, sat, SIN, dst, mask, src[0], none, none); + break; + case TGSI_OPCODE_SLE: + arith(fpc, sat, SLE, dst, mask, src[0], src[1], none); + break; + case TGSI_OPCODE_SLT: + arith(fpc, sat, SLT, dst, mask, src[0], src[1], none); + break; + case TGSI_OPCODE_SNE: + arith(fpc, sat, SNE, dst, mask, src[0], src[1], none); + break; + case TGSI_OPCODE_STR: + arith(fpc, sat, STR, dst, mask, src[0], src[1], none); + break; + case TGSI_OPCODE_SUB: + arith(fpc, sat, ADD, dst, mask, src[0], neg(src[1]), none); + break; + case TGSI_OPCODE_TEX: + tex(fpc, sat, TEX, unit, dst, mask, src[0], none, none); + break; + case TGSI_OPCODE_TXB: + tex(fpc, sat, TXB, unit, dst, mask, src[0], none, none); + break; + case TGSI_OPCODE_TXP: + tex(fpc, sat, TXP, unit, dst, mask, src[0], none, none); + break; + case TGSI_OPCODE_XPD: + tmp = temp(fpc); + arith(fpc, 0, MUL, tmp, mask, + swz(src[0], Z, X, Y, Y), swz(src[1], Y, Z, X, X), none); + arith(fpc, sat, MAD, dst, (mask & ~NVFX_FP_MASK_W), + swz(src[0], Y, Z, X, X), swz(src[1], Z, X, Y, Y), + neg(tmp)); + break; + default: + NOUVEAU_ERR("invalid opcode %d\n", finst->Instruction.Opcode); + return FALSE; + } + + release_temps(fpc); + return TRUE; +} + +static boolean +nvfx_fragprog_parse_decl_attrib(struct nvfx_context* nvfx, struct nvfx_fpc *fpc, + const struct tgsi_full_declaration *fdec) +{ + int hw; + + switch (fdec->Semantic.Name) { + case TGSI_SEMANTIC_POSITION: + hw = NVFX_FP_OP_INPUT_SRC_POSITION; + break; + case TGSI_SEMANTIC_COLOR: + if (fdec->Semantic.Index == 0) { + hw = NVFX_FP_OP_INPUT_SRC_COL0; + } else + if (fdec->Semantic.Index == 1) { + hw = NVFX_FP_OP_INPUT_SRC_COL1; + } else { + NOUVEAU_ERR("bad colour semantic index\n"); + return FALSE; + } + break; + case TGSI_SEMANTIC_FOG: + hw = NVFX_FP_OP_INPUT_SRC_FOGC; + break; + case TGSI_SEMANTIC_GENERIC: + if (fdec->Semantic.Index <= 7) { + hw = NVFX_FP_OP_INPUT_SRC_TC(fdec->Semantic. + Index); + } else { + NOUVEAU_ERR("bad generic semantic index\n"); + return FALSE; + } + break; + default: + NOUVEAU_ERR("bad input semantic\n"); + return FALSE; + } + + fpc->attrib_map[fdec->Range.First] = hw; + return TRUE; +} + +static boolean +nvfx_fragprog_parse_decl_output(struct nvfx_context* nvfx, struct nvfx_fpc *fpc, + const struct tgsi_full_declaration *fdec) +{ + unsigned idx = fdec->Range.First; + unsigned hw; + + switch (fdec->Semantic.Name) { + case TGSI_SEMANTIC_POSITION: + hw = 1; + break; + case TGSI_SEMANTIC_COLOR: + hw = ~0; + switch (fdec->Semantic.Index) { + case 0: hw = 0; break; + case 1: hw = 2; break; + case 2: hw = 3; break; + case 3: hw = 4; break; + } + if(hw > ((nvfx->is_nv4x) ? 4 : 2)) { + NOUVEAU_ERR("bad rcol index\n"); + return FALSE; + } + break; + default: + NOUVEAU_ERR("bad output semantic\n"); + return FALSE; + } + + fpc->r_result[idx] = nvfx_sr(NVFXSR_OUTPUT, hw); + fpc->r_temps |= (1 << hw); + return TRUE; +} + +static boolean +nvfx_fragprog_prepare(struct nvfx_context* nvfx, struct nvfx_fpc *fpc) +{ + struct tgsi_parse_context p; + int high_temp = -1, i; + + tgsi_parse_init(&p, fpc->fp->pipe.tokens); + while (!tgsi_parse_end_of_tokens(&p)) { + const union tgsi_full_token *tok = &p.FullToken; + + tgsi_parse_token(&p); + switch(tok->Token.Type) { + case TGSI_TOKEN_TYPE_DECLARATION: + { + const struct tgsi_full_declaration *fdec; + fdec = &p.FullToken.FullDeclaration; + switch (fdec->Declaration.File) { + case TGSI_FILE_INPUT: + if (!nvfx_fragprog_parse_decl_attrib(nvfx, fpc, fdec)) + goto out_err; + break; + case TGSI_FILE_OUTPUT: + if (!nvfx_fragprog_parse_decl_output(nvfx, fpc, fdec)) + goto out_err; + break; + case TGSI_FILE_TEMPORARY: + if (fdec->Range.Last > high_temp) { + high_temp = + fdec->Range.Last; + } + break; + default: + break; + } + } + break; + case TGSI_TOKEN_TYPE_IMMEDIATE: + { + struct tgsi_full_immediate *imm; + float vals[4]; + + imm = &p.FullToken.FullImmediate; + assert(imm->Immediate.DataType == TGSI_IMM_FLOAT32); + assert(fpc->nr_imm < MAX_IMM); + + vals[0] = imm->u[0].Float; + vals[1] = imm->u[1].Float; + vals[2] = imm->u[2].Float; + vals[3] = imm->u[3].Float; + fpc->imm[fpc->nr_imm++] = constant(fpc, -1, vals); + } + break; + default: + break; + } + } + tgsi_parse_free(&p); + + if (++high_temp) { + fpc->r_temp = CALLOC(high_temp, sizeof(struct nvfx_sreg)); + for (i = 0; i < high_temp; i++) + fpc->r_temp[i] = temp(fpc); + fpc->r_temps_discard = 0; + } + + return TRUE; + +out_err: + if (fpc->r_temp) + FREE(fpc->r_temp); + tgsi_parse_free(&p); + return FALSE; +} + +static void +nvfx_fragprog_translate(struct nvfx_context *nvfx, + struct nvfx_fragment_program *fp) +{ + struct tgsi_parse_context parse; + struct nvfx_fpc *fpc = NULL; + + fpc = CALLOC(1, sizeof(struct nvfx_fpc)); + if (!fpc) + return; + fpc->fp = fp; + fpc->num_regs = 2; + + if (!nvfx_fragprog_prepare(nvfx, fpc)) { + FREE(fpc); + return; + } + + tgsi_parse_init(&parse, fp->pipe.tokens); + + while (!tgsi_parse_end_of_tokens(&parse)) { + tgsi_parse_token(&parse); + + switch (parse.FullToken.Token.Type) { + case TGSI_TOKEN_TYPE_INSTRUCTION: + { + const struct tgsi_full_instruction *finst; + + finst = &parse.FullToken.FullInstruction; + if (!nvfx_fragprog_parse_instruction(nvfx, fpc, finst)) + goto out_err; + } + break; + default: + break; + } + } + + if(!nvfx->is_nv4x) + fp->fp_control |= (fpc->num_regs-1)/2; + else + fp->fp_control |= fpc->num_regs << NV40TCL_FP_CONTROL_TEMP_COUNT_SHIFT; + + /* Terminate final instruction */ + if(fp->insn) + fp->insn[fpc->inst_offset] |= 0x00000001; + + /* Append NOP + END instruction, may or may not be necessary. */ + fpc->inst_offset = fp->insn_len; + grow_insns(fpc, 4); + fp->insn[fpc->inst_offset + 0] = 0x00000001; + fp->insn[fpc->inst_offset + 1] = 0x00000000; + fp->insn[fpc->inst_offset + 2] = 0x00000000; + fp->insn[fpc->inst_offset + 3] = 0x00000000; + + fp->translated = TRUE; +out_err: + tgsi_parse_free(&parse); + if (fpc->r_temp) + FREE(fpc->r_temp); + FREE(fpc); +} + +static void +nvfx_fragprog_upload(struct nvfx_context *nvfx, + struct nvfx_fragment_program *fp) +{ + struct pipe_screen *pscreen = nvfx->pipe.screen; + const uint32_t le = 1; + uint32_t *map; + int i; + + map = pipe_buffer_map(pscreen, fp->buffer, PIPE_BUFFER_USAGE_CPU_WRITE); + +#if 0 + for (i = 0; i < fp->insn_len; i++) { + fflush(stdout); fflush(stderr); + NOUVEAU_ERR("%d 0x%08x\n", i, fp->insn[i]); + fflush(stdout); fflush(stderr); + } +#endif + + if ((*(const uint8_t *)&le)) { + for (i = 0; i < fp->insn_len; i++) { + map[i] = fp->insn[i]; + } + } else { + /* Weird swapping for big-endian chips */ + for (i = 0; i < fp->insn_len; i++) { + map[i] = ((fp->insn[i] & 0xffff) << 16) | + ((fp->insn[i] >> 16) & 0xffff); + } + } + + pipe_buffer_unmap(pscreen, fp->buffer); +} + +static boolean +nvfx_fragprog_validate(struct nvfx_context *nvfx) +{ + struct nvfx_fragment_program *fp = nvfx->fragprog; + struct pipe_buffer *constbuf = + nvfx->constbuf[PIPE_SHADER_FRAGMENT]; + struct pipe_screen *pscreen = nvfx->pipe.screen; + struct nouveau_stateobj *so; + boolean new_consts = FALSE; + int i; + + if (fp->translated) + goto update_constants; + + nvfx->fallback_swrast &= ~NVFX_NEW_FRAGPROG; + nvfx_fragprog_translate(nvfx, fp); + if (!fp->translated) { + nvfx->fallback_swrast |= NVFX_NEW_FRAGPROG; + return FALSE; + } + + fp->buffer = pscreen->buffer_create(pscreen, 0x100, 0, fp->insn_len * 4); + nvfx_fragprog_upload(nvfx, fp); + + so = so_new(4, 4, 1); + so_method(so, nvfx->screen->eng3d, NV34TCL_FP_ACTIVE_PROGRAM, 1); + so_reloc (so, nouveau_bo(fp->buffer), 0, NOUVEAU_BO_VRAM | + NOUVEAU_BO_GART | NOUVEAU_BO_RD | NOUVEAU_BO_LOW | + NOUVEAU_BO_OR, NV34TCL_FP_ACTIVE_PROGRAM_DMA0, + NV34TCL_FP_ACTIVE_PROGRAM_DMA1); + so_method(so, nvfx->screen->eng3d, NV34TCL_FP_CONTROL, 1); + so_data (so, fp->fp_control); + if(!nvfx->is_nv4x) { + so_method(so, nvfx->screen->eng3d, NV34TCL_FP_REG_CONTROL, 1); + so_data (so, (1<<16)|0x4); + so_method(so, nvfx->screen->eng3d, NV34TCL_TX_UNITS_ENABLE, 1); + so_data (so, fp->samplers); + } + + so_ref(so, &fp->so); + so_ref(NULL, &so); + +update_constants: + if (fp->nr_consts) { + float *map; + + map = pipe_buffer_map(pscreen, constbuf, + PIPE_BUFFER_USAGE_CPU_READ); + for (i = 0; i < fp->nr_consts; i++) { + struct nvfx_fragment_program_data *fpd = &fp->consts[i]; + uint32_t *p = &fp->insn[fpd->offset]; + uint32_t *cb = (uint32_t *)&map[fpd->index * 4]; + + if (!memcmp(p, cb, 4 * sizeof(float))) + continue; + memcpy(p, cb, 4 * sizeof(float)); + new_consts = TRUE; + } + pipe_buffer_unmap(pscreen, constbuf); + + if (new_consts) + nvfx_fragprog_upload(nvfx, fp); + } + + if (new_consts || fp->so != nvfx->state.hw[NVFX_STATE_FRAGPROG]) { + so_ref(fp->so, &nvfx->state.hw[NVFX_STATE_FRAGPROG]); + return TRUE; + } + + return FALSE; +} + +void +nvfx_fragprog_destroy(struct nvfx_context *nvfx, + struct nvfx_fragment_program *fp) +{ + if (fp->buffer) + pipe_buffer_reference(&fp->buffer, NULL); + + if (fp->so) + so_ref(NULL, &fp->so); + + if (fp->insn_len) + FREE(fp->insn); +} + +struct nvfx_state_entry nvfx_state_fragprog = { + .validate = nvfx_fragprog_validate, + .dirty = { + .pipe = NVFX_NEW_FRAGPROG, + .hw = NVFX_STATE_FRAGPROG + } +}; |