diff options
author | Nicolai Hähnle <nhaehnle@gmail.com> | 2009-07-15 17:36:42 +0200 |
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committer | Nicolai Hähnle <nhaehnle@gmail.com> | 2009-07-27 20:32:02 +0200 |
commit | e5bed439be4fd7c3a349aedc4bff7eec4e4d363e (patch) | |
tree | fd7e630146c939e54beedbc41db77e5415ff9e20 /src/mesa/drivers/dri/r300/compiler/r500_fragprog.c | |
parent | 6b142866abb3097a84cf4b6dae69423154ab40a6 (diff) |
r300: Detangle fragment program compiler from driver-specific structure
This is in preparation of sharing the fragment program compiler with Gallium:
Compiler code is moved into its own directory and modified so that it no
longer depends on driver structures.
Signed-off-by: Nicolai Hähnle <nhaehnle@gmail.com>
Diffstat (limited to 'src/mesa/drivers/dri/r300/compiler/r500_fragprog.c')
-rw-r--r-- | src/mesa/drivers/dri/r300/compiler/r500_fragprog.c | 482 |
1 files changed, 482 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/compiler/r500_fragprog.c b/src/mesa/drivers/dri/r300/compiler/r500_fragprog.c new file mode 100644 index 0000000000..fdc18caacb --- /dev/null +++ b/src/mesa/drivers/dri/r300/compiler/r500_fragprog.c @@ -0,0 +1,482 @@ +/* + * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> + * + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial + * portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + */ + +#include "compiler/r500_fragprog.h" + +#include "r300_reg.h" + +static void reset_srcreg(struct prog_src_register* reg) +{ + _mesa_bzero(reg, sizeof(*reg)); + reg->Swizzle = SWIZZLE_NOOP; +} + +static struct prog_src_register shadow_ambient(struct gl_program *program, int tmu) +{ + gl_state_index fail_value_tokens[STATE_LENGTH] = { + STATE_INTERNAL, STATE_SHADOW_AMBIENT, 0, 0, 0 + }; + struct prog_src_register reg = { 0, }; + + fail_value_tokens[2] = tmu; + reg.File = PROGRAM_STATE_VAR; + reg.Index = _mesa_add_state_reference(program->Parameters, fail_value_tokens); + reg.Swizzle = SWIZZLE_WWWW; + return reg; +} + +/** + * Transform TEX, TXP, TXB, and KIL instructions in the following way: + * - premultiply texture coordinates for RECT + * - extract operand swizzles + * - introduce a temporary register when write masks are needed + * + */ +GLboolean r500_transform_TEX( + struct radeon_transform_context *t, + struct prog_instruction* orig_inst, void* data) +{ + struct r300_fragment_program_compiler *compiler = + (struct r300_fragment_program_compiler*)data; + struct prog_instruction inst = *orig_inst; + struct prog_instruction* tgt; + GLboolean destredirect = GL_FALSE; + + if (inst.Opcode != OPCODE_TEX && + inst.Opcode != OPCODE_TXB && + inst.Opcode != OPCODE_TXP && + inst.Opcode != OPCODE_KIL) + return GL_FALSE; + + /* ARB_shadow & EXT_shadow_funcs */ + if (inst.Opcode != OPCODE_KIL && + t->Program->ShadowSamplers & (1 << inst.TexSrcUnit)) { + GLuint comparefunc = GL_NEVER + compiler->state.unit[inst.TexSrcUnit].texture_compare_func; + + if (comparefunc == GL_NEVER || comparefunc == GL_ALWAYS) { + tgt = radeonAppendInstructions(t->Program, 1); + + tgt->Opcode = OPCODE_MOV; + tgt->DstReg = inst.DstReg; + if (comparefunc == GL_ALWAYS) { + tgt->SrcReg[0].File = PROGRAM_BUILTIN; + tgt->SrcReg[0].Swizzle = SWIZZLE_1111; + } else { + tgt->SrcReg[0] = shadow_ambient(t->Program, inst.TexSrcUnit); + } + return GL_TRUE; + } + + inst.DstReg.File = PROGRAM_TEMPORARY; + inst.DstReg.Index = radeonFindFreeTemporary(t); + inst.DstReg.WriteMask = WRITEMASK_XYZW; + } else if (inst.Opcode != OPCODE_KIL && inst.DstReg.File != PROGRAM_TEMPORARY) { + int tempreg = radeonFindFreeTemporary(t); + + inst.DstReg.File = PROGRAM_TEMPORARY; + inst.DstReg.Index = tempreg; + inst.DstReg.WriteMask = WRITEMASK_XYZW; + destredirect = GL_TRUE; + } + + if (inst.SrcReg[0].File != PROGRAM_TEMPORARY && inst.SrcReg[0].File != PROGRAM_INPUT) { + int tmpreg = radeonFindFreeTemporary(t); + tgt = radeonAppendInstructions(t->Program, 1); + tgt->Opcode = OPCODE_MOV; + tgt->DstReg.File = PROGRAM_TEMPORARY; + tgt->DstReg.Index = tmpreg; + tgt->SrcReg[0] = inst.SrcReg[0]; + + reset_srcreg(&inst.SrcReg[0]); + inst.SrcReg[0].File = PROGRAM_TEMPORARY; + inst.SrcReg[0].Index = tmpreg; + } + + tgt = radeonAppendInstructions(t->Program, 1); + _mesa_copy_instructions(tgt, &inst, 1); + + if (inst.Opcode != OPCODE_KIL && + t->Program->ShadowSamplers & (1 << inst.TexSrcUnit)) { + GLuint comparefunc = GL_NEVER + compiler->state.unit[inst.TexSrcUnit].texture_compare_func; + GLuint depthmode = compiler->state.unit[inst.TexSrcUnit].depth_texture_mode; + int rcptemp = radeonFindFreeTemporary(t); + int pass, fail; + + tgt = radeonAppendInstructions(t->Program, 3); + + tgt[0].Opcode = OPCODE_RCP; + tgt[0].DstReg.File = PROGRAM_TEMPORARY; + tgt[0].DstReg.Index = rcptemp; + tgt[0].DstReg.WriteMask = WRITEMASK_W; + tgt[0].SrcReg[0] = inst.SrcReg[0]; + tgt[0].SrcReg[0].Swizzle = SWIZZLE_WWWW; + + tgt[1].Opcode = OPCODE_MAD; + tgt[1].DstReg = inst.DstReg; + tgt[1].DstReg.WriteMask = orig_inst->DstReg.WriteMask; + tgt[1].SrcReg[0] = inst.SrcReg[0]; + tgt[1].SrcReg[0].Swizzle = SWIZZLE_ZZZZ; + tgt[1].SrcReg[1].File = PROGRAM_TEMPORARY; + tgt[1].SrcReg[1].Index = rcptemp; + tgt[1].SrcReg[1].Swizzle = SWIZZLE_WWWW; + tgt[1].SrcReg[2].File = PROGRAM_TEMPORARY; + tgt[1].SrcReg[2].Index = inst.DstReg.Index; + if (depthmode == 0) /* GL_LUMINANCE */ + tgt[1].SrcReg[2].Swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_Z); + else if (depthmode == 2) /* GL_ALPHA */ + tgt[1].SrcReg[2].Swizzle = SWIZZLE_WWWW; + + /* Recall that SrcReg[0] is tex, SrcReg[2] is r and: + * r < tex <=> -tex+r < 0 + * r >= tex <=> not (-tex+r < 0 */ + if (comparefunc == GL_LESS || comparefunc == GL_GEQUAL) + tgt[1].SrcReg[2].Negate = tgt[0].SrcReg[2].Negate ^ NEGATE_XYZW; + else + tgt[1].SrcReg[0].Negate = tgt[0].SrcReg[0].Negate ^ NEGATE_XYZW; + + tgt[2].Opcode = OPCODE_CMP; + tgt[2].DstReg = orig_inst->DstReg; + tgt[2].SrcReg[0].File = PROGRAM_TEMPORARY; + tgt[2].SrcReg[0].Index = tgt[1].DstReg.Index; + + if (comparefunc == GL_LESS || comparefunc == GL_GREATER) { + pass = 1; + fail = 2; + } else { + pass = 2; + fail = 1; + } + + tgt[2].SrcReg[pass].File = PROGRAM_BUILTIN; + tgt[2].SrcReg[pass].Swizzle = SWIZZLE_1111; + tgt[2].SrcReg[fail] = shadow_ambient(t->Program, inst.TexSrcUnit); + } else if (destredirect) { + tgt = radeonAppendInstructions(t->Program, 1); + + tgt->Opcode = OPCODE_MOV; + tgt->DstReg = orig_inst->DstReg; + tgt->SrcReg[0].File = PROGRAM_TEMPORARY; + tgt->SrcReg[0].Index = inst.DstReg.Index; + } + + return GL_TRUE; +} + +GLboolean r500FPIsNativeSwizzle(GLuint opcode, struct prog_src_register reg) +{ + GLuint relevant; + int i; + + if (opcode == OPCODE_TEX || + opcode == OPCODE_TXB || + opcode == OPCODE_TXP || + opcode == OPCODE_KIL) { + if (reg.Abs) + return GL_FALSE; + + if (opcode == OPCODE_KIL && (reg.Swizzle != SWIZZLE_NOOP || reg.Negate != NEGATE_NONE)) + return GL_FALSE; + + if (reg.Negate) + reg.Negate ^= NEGATE_XYZW; + + for(i = 0; i < 4; ++i) { + GLuint swz = GET_SWZ(reg.Swizzle, i); + if (swz == SWIZZLE_NIL) { + reg.Negate &= ~(1 << i); + continue; + } + if (swz >= 4) + return GL_FALSE; + } + + if (reg.Negate) + return GL_FALSE; + + return GL_TRUE; + } else if (opcode == OPCODE_DDX || opcode == OPCODE_DDY) { + /* DDX/MDH and DDY/MDV explicitly ignore incoming swizzles; + * if it doesn't fit perfectly into a .xyzw case... */ + if (reg.Swizzle == SWIZZLE_NOOP && !reg.Abs && !reg.Negate) + return GL_TRUE; + + return GL_FALSE; + } else { + /* ALU instructions support almost everything */ + if (reg.Abs) + return GL_TRUE; + + relevant = 0; + for(i = 0; i < 3; ++i) { + GLuint swz = GET_SWZ(reg.Swizzle, i); + if (swz != SWIZZLE_NIL && swz != SWIZZLE_ZERO) + relevant |= 1 << i; + } + if ((reg.Negate & relevant) && ((reg.Negate & relevant) != relevant)) + return GL_FALSE; + + return GL_TRUE; + } +} + +/** + * Implement a MOV with a potentially non-native swizzle. + * + * The only thing we *cannot* do in an ALU instruction is per-component + * negation. Therefore, we split the MOV into two instructions when necessary. + */ +void r500FPBuildSwizzle(struct nqssadce_state *s, struct prog_dst_register dst, struct prog_src_register src) +{ + struct prog_instruction *inst; + GLuint negatebase[2] = { 0, 0 }; + int i; + + for(i = 0; i < 4; ++i) { + GLuint swz = GET_SWZ(src.Swizzle, i); + if (swz == SWIZZLE_NIL) + continue; + negatebase[GET_BIT(src.Negate, i)] |= 1 << i; + } + + _mesa_insert_instructions(s->Program, s->IP, (negatebase[0] ? 1 : 0) + (negatebase[1] ? 1 : 0)); + inst = s->Program->Instructions + s->IP; + + for(i = 0; i <= 1; ++i) { + if (!negatebase[i]) + continue; + + inst->Opcode = OPCODE_MOV; + inst->DstReg = dst; + inst->DstReg.WriteMask = negatebase[i]; + inst->SrcReg[0] = src; + inst->SrcReg[0].Negate = (i == 0) ? NEGATE_NONE : NEGATE_XYZW; + inst++; + s->IP++; + } +} + + +static char *toswiz(int swiz_val) { + switch(swiz_val) { + case 0: return "R"; + case 1: return "G"; + case 2: return "B"; + case 3: return "A"; + case 4: return "0"; + case 5: return "1/2"; + case 6: return "1"; + case 7: return "U"; + } + return NULL; +} + +static char *toop(int op_val) +{ + char *str = NULL; + switch (op_val) { + case 0: str = "MAD"; break; + case 1: str = "DP3"; break; + case 2: str = "DP4"; break; + case 3: str = "D2A"; break; + case 4: str = "MIN"; break; + case 5: str = "MAX"; break; + case 6: str = "Reserved"; break; + case 7: str = "CND"; break; + case 8: str = "CMP"; break; + case 9: str = "FRC"; break; + case 10: str = "SOP"; break; + case 11: str = "MDH"; break; + case 12: str = "MDV"; break; + } + return str; +} + +static char *to_alpha_op(int op_val) +{ + char *str = NULL; + switch (op_val) { + case 0: str = "MAD"; break; + case 1: str = "DP"; break; + case 2: str = "MIN"; break; + case 3: str = "MAX"; break; + case 4: str = "Reserved"; break; + case 5: str = "CND"; break; + case 6: str = "CMP"; break; + case 7: str = "FRC"; break; + case 8: str = "EX2"; break; + case 9: str = "LN2"; break; + case 10: str = "RCP"; break; + case 11: str = "RSQ"; break; + case 12: str = "SIN"; break; + case 13: str = "COS"; break; + case 14: str = "MDH"; break; + case 15: str = "MDV"; break; + } + return str; +} + +static char *to_mask(int val) +{ + char *str = NULL; + switch(val) { + case 0: str = "NONE"; break; + case 1: str = "R"; break; + case 2: str = "G"; break; + case 3: str = "RG"; break; + case 4: str = "B"; break; + case 5: str = "RB"; break; + case 6: str = "GB"; break; + case 7: str = "RGB"; break; + case 8: str = "A"; break; + case 9: str = "AR"; break; + case 10: str = "AG"; break; + case 11: str = "ARG"; break; + case 12: str = "AB"; break; + case 13: str = "ARB"; break; + case 14: str = "AGB"; break; + case 15: str = "ARGB"; break; + } + return str; +} + +static char *to_texop(int val) +{ + switch(val) { + case 0: return "NOP"; + case 1: return "LD"; + case 2: return "TEXKILL"; + case 3: return "PROJ"; + case 4: return "LODBIAS"; + case 5: return "LOD"; + case 6: return "DXDY"; + } + return NULL; +} + +void r500FragmentProgramDump(struct rX00_fragment_program_code *c) +{ + struct r500_fragment_program_code *code = &c->code.r500; + fprintf(stderr, "R500 Fragment Program:\n--------\n"); + + int n; + uint32_t inst; + uint32_t inst0; + char *str = NULL; + + if (code->const_nr) { + fprintf(stderr, "--------\nConstants:\n"); + for (n = 0; n < code->const_nr; n++) { + fprintf(stderr, "Constant %d: %i[%i]\n", n, + code->constant[n].File, code->constant[n].Index); + } + fprintf(stderr, "--------\n"); + } + + for (n = 0; n < code->inst_end+1; n++) { + inst0 = inst = code->inst[n].inst0; + fprintf(stderr,"%d\t0:CMN_INST 0x%08x:", n, inst); + switch(inst & 0x3) { + case R500_INST_TYPE_ALU: str = "ALU"; break; + case R500_INST_TYPE_OUT: str = "OUT"; break; + case R500_INST_TYPE_FC: str = "FC"; break; + case R500_INST_TYPE_TEX: str = "TEX"; break; + }; + fprintf(stderr,"%s %s %s %s %s ", str, + inst & R500_INST_TEX_SEM_WAIT ? "TEX_WAIT" : "", + inst & R500_INST_LAST ? "LAST" : "", + inst & R500_INST_NOP ? "NOP" : "", + inst & R500_INST_ALU_WAIT ? "ALU WAIT" : ""); + fprintf(stderr,"wmask: %s omask: %s\n", to_mask((inst >> 11) & 0xf), + to_mask((inst >> 15) & 0xf)); + + switch(inst0 & 0x3) { + case 0: + case 1: + fprintf(stderr,"\t1:RGB_ADDR 0x%08x:", code->inst[n].inst1); + inst = code->inst[n].inst1; + + fprintf(stderr,"Addr0: %d%c, Addr1: %d%c, Addr2: %d%c, srcp:%d\n", + inst & 0xff, (inst & (1<<8)) ? 'c' : 't', + (inst >> 10) & 0xff, (inst & (1<<18)) ? 'c' : 't', + (inst >> 20) & 0xff, (inst & (1<<28)) ? 'c' : 't', + (inst >> 30)); + + fprintf(stderr,"\t2:ALPHA_ADDR 0x%08x:", code->inst[n].inst2); + inst = code->inst[n].inst2; + fprintf(stderr,"Addr0: %d%c, Addr1: %d%c, Addr2: %d%c, srcp:%d\n", + inst & 0xff, (inst & (1<<8)) ? 'c' : 't', + (inst >> 10) & 0xff, (inst & (1<<18)) ? 'c' : 't', + (inst >> 20) & 0xff, (inst & (1<<28)) ? 'c' : 't', + (inst >> 30)); + fprintf(stderr,"\t3 RGB_INST: 0x%08x:", code->inst[n].inst3); + inst = code->inst[n].inst3; + fprintf(stderr,"rgb_A_src:%d %s/%s/%s %d rgb_B_src:%d %s/%s/%s %d\n", + (inst) & 0x3, toswiz((inst >> 2) & 0x7), toswiz((inst >> 5) & 0x7), toswiz((inst >> 8) & 0x7), + (inst >> 11) & 0x3, + (inst >> 13) & 0x3, toswiz((inst >> 15) & 0x7), toswiz((inst >> 18) & 0x7), toswiz((inst >> 21) & 0x7), + (inst >> 24) & 0x3); + + + fprintf(stderr,"\t4 ALPHA_INST:0x%08x:", code->inst[n].inst4); + inst = code->inst[n].inst4; + fprintf(stderr,"%s dest:%d%s alp_A_src:%d %s %d alp_B_src:%d %s %d w:%d\n", to_alpha_op(inst & 0xf), + (inst >> 4) & 0x7f, inst & (1<<11) ? "(rel)":"", + (inst >> 12) & 0x3, toswiz((inst >> 14) & 0x7), (inst >> 17) & 0x3, + (inst >> 19) & 0x3, toswiz((inst >> 21) & 0x7), (inst >> 24) & 0x3, + (inst >> 31) & 0x1); + + fprintf(stderr,"\t5 RGBA_INST: 0x%08x:", code->inst[n].inst5); + inst = code->inst[n].inst5; + fprintf(stderr,"%s dest:%d%s rgb_C_src:%d %s/%s/%s %d alp_C_src:%d %s %d\n", toop(inst & 0xf), + (inst >> 4) & 0x7f, inst & (1<<11) ? "(rel)":"", + (inst >> 12) & 0x3, toswiz((inst >> 14) & 0x7), toswiz((inst >> 17) & 0x7), toswiz((inst >> 20) & 0x7), + (inst >> 23) & 0x3, + (inst >> 25) & 0x3, toswiz((inst >> 27) & 0x7), (inst >> 30) & 0x3); + break; + case 2: + break; + case 3: + inst = code->inst[n].inst1; + fprintf(stderr,"\t1:TEX_INST: 0x%08x: id: %d op:%s, %s, %s %s\n", inst, (inst >> 16) & 0xf, + to_texop((inst >> 22) & 0x7), (inst & (1<<25)) ? "ACQ" : "", + (inst & (1<<26)) ? "IGNUNC" : "", (inst & (1<<27)) ? "UNSCALED" : "SCALED"); + inst = code->inst[n].inst2; + fprintf(stderr,"\t2:TEX_ADDR: 0x%08x: src: %d%s %s/%s/%s/%s dst: %d%s %s/%s/%s/%s\n", inst, + inst & 127, inst & (1<<7) ? "(rel)" : "", + toswiz((inst >> 8) & 0x3), toswiz((inst >> 10) & 0x3), + toswiz((inst >> 12) & 0x3), toswiz((inst >> 14) & 0x3), + (inst >> 16) & 127, inst & (1<<23) ? "(rel)" : "", + toswiz((inst >> 24) & 0x3), toswiz((inst >> 26) & 0x3), + toswiz((inst >> 28) & 0x3), toswiz((inst >> 30) & 0x3)); + + fprintf(stderr,"\t3:TEX_DXDY: 0x%08x\n", code->inst[n].inst3); + break; + } + fprintf(stderr,"\n"); + } + +} |