diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_wm_glsl.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_glsl.c | 519 |
1 files changed, 356 insertions, 163 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_glsl.c b/src/mesa/drivers/dri/i965/brw_wm_glsl.c index a907e1b788..7c210abbce 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_glsl.c +++ b/src/mesa/drivers/dri/i965/brw_wm_glsl.c @@ -1,5 +1,7 @@ #include "main/macros.h" #include "shader/prog_parameter.h" +#include "shader/prog_print.h" +#include "shader/prog_optimize.h" #include "brw_context.h" #include "brw_eu.h" #include "brw_wm.h" @@ -8,6 +10,9 @@ enum _subroutine { SUB_NOISE1, SUB_NOISE2, SUB_NOISE3, SUB_NOISE4 }; +static struct brw_reg get_dst_reg(struct brw_wm_compile *c, + const struct prog_instruction *inst, + GLuint component); /** * Determine if the given fragment program uses GLSL features such @@ -20,8 +25,8 @@ GLboolean brw_wm_is_glsl(const struct gl_fragment_program *fp) for (i = 0; i < fp->Base.NumInstructions; i++) { const struct prog_instruction *inst = &fp->Base.Instructions[i]; switch (inst->Opcode) { + case OPCODE_ARL: case OPCODE_IF: - case OPCODE_TRUNC: case OPCODE_ENDIF: case OPCODE_CAL: case OPCODE_BRK: @@ -42,6 +47,83 @@ GLboolean brw_wm_is_glsl(const struct gl_fragment_program *fp) } + +static void +reclaim_temps(struct brw_wm_compile *c); + + +/** Mark GRF register as used. */ +static void +prealloc_grf(struct brw_wm_compile *c, int r) +{ + c->used_grf[r] = GL_TRUE; +} + + +/** Mark given GRF register as not in use. */ +static void +release_grf(struct brw_wm_compile *c, int r) +{ + /*assert(c->used_grf[r]);*/ + c->used_grf[r] = GL_FALSE; + c->first_free_grf = MIN2(c->first_free_grf, r); +} + + +/** Return index of a free GRF, mark it as used. */ +static int +alloc_grf(struct brw_wm_compile *c) +{ + GLuint r; + for (r = c->first_free_grf; r < BRW_WM_MAX_GRF; r++) { + if (!c->used_grf[r]) { + c->used_grf[r] = GL_TRUE; + c->first_free_grf = r + 1; /* a guess */ + return r; + } + } + + /* no free temps, try to reclaim some */ + reclaim_temps(c); + c->first_free_grf = 0; + + /* try alloc again */ + for (r = c->first_free_grf; r < BRW_WM_MAX_GRF; r++) { + if (!c->used_grf[r]) { + c->used_grf[r] = GL_TRUE; + c->first_free_grf = r + 1; /* a guess */ + return r; + } + } + + for (r = 0; r < BRW_WM_MAX_GRF; r++) { + assert(c->used_grf[r]); + } + + /* really, no free GRF regs found */ + if (!c->out_of_regs) { + /* print warning once per compilation */ + _mesa_warning(NULL, "i965: ran out of registers for fragment program"); + c->out_of_regs = GL_TRUE; + } + + return -1; +} + + +/** Return number of GRF registers used */ +static int +num_grf_used(const struct brw_wm_compile *c) +{ + int r; + for (r = BRW_WM_MAX_GRF - 1; r >= 0; r--) + if (c->used_grf[r]) + return r + 1; + return 0; +} + + + /** * Record the mapping of a Mesa register to a hardware register. */ @@ -52,27 +134,26 @@ static void set_reg(struct brw_wm_compile *c, int file, int index, c->wm_regs[file][index][component].inited = GL_TRUE; } -/** - * Examine instruction's write mask to find index of first component - * enabled for writing. - */ -static int get_scalar_dst_index(const struct prog_instruction *inst) -{ - int i; - for (i = 0; i < 4; i++) - if (inst->DstReg.WriteMask & (1<<i)) - break; - return i; -} - static struct brw_reg alloc_tmp(struct brw_wm_compile *c) { struct brw_reg reg; - if(c->tmp_index == c->tmp_max) - c->tmp_regs[ c->tmp_max++ ] = c->reg_index++; - + + /* if we need to allocate another temp, grow the tmp_regs[] array */ + if (c->tmp_index == c->tmp_max) { + int r = alloc_grf(c); + if (r < 0) { + /*printf("Out of temps in %s\n", __FUNCTION__);*/ + r = 50; /* XXX random register! */ + } + c->tmp_regs[ c->tmp_max++ ] = r; + } + + /* form the GRF register */ reg = brw_vec8_grf(c->tmp_regs[ c->tmp_index++ ], 0); + /*printf("alloc_temp %d\n", reg.nr);*/ + assert(reg.nr < BRW_WM_MAX_GRF); return reg; + } /** @@ -130,35 +211,29 @@ get_reg(struct brw_wm_compile *c, int file, int index, int component, return brw_null_reg(); } + assert(index < 256); + assert(component < 4); + /* see if we've already allocated a HW register for this Mesa register */ if (c->wm_regs[file][index][component].inited) { - /* yes, re-use */ - reg = c->wm_regs[file][index][component].reg; + /* yes, re-use */ + reg = c->wm_regs[file][index][component].reg; } else { /* no, allocate new register */ - reg = brw_vec8_grf(c->reg_index, 0); - } + int grf = alloc_grf(c); + /*printf("alloc grf %d for reg %d:%d.%d\n", grf, file, index, component);*/ + if (grf < 0) { + /* totally out of temps */ + grf = 51; /* XXX random register! */ + } - /* if this is a new register allocation, record it in the table */ - if (!c->wm_regs[file][index][component].inited) { - set_reg(c, file, index, component, reg); - c->reg_index++; - } + reg = brw_vec8_grf(grf, 0); + /*printf("Alloc new grf %d for %d.%d\n", reg.nr, index, component);*/ - if (c->reg_index >= BRW_WM_MAX_GRF - 12) { - /* ran out of temporary registers! */ -#if 1 - /* This is a big hack for now. - * Return bad register index, just don't hang the GPU. - */ - _mesa_fprintf(stderr, "out of regs %d\n", c->reg_index); - c->reg_index = BRW_WM_MAX_GRF - 13; -#else - return brw_null_reg(); -#endif + set_reg(c, file, index, component, reg); } - + if (neg & (1 << component)) { reg = negate(reg); } @@ -168,6 +243,46 @@ get_reg(struct brw_wm_compile *c, int file, int index, int component, } + +/** + * This is called if we run out of GRF registers. Examine the live intervals + * of temp regs in the program and free those which won't be used again. + */ +static void +reclaim_temps(struct brw_wm_compile *c) +{ + GLint intBegin[MAX_PROGRAM_TEMPS]; + GLint intEnd[MAX_PROGRAM_TEMPS]; + int index; + + /*printf("Reclaim temps:\n");*/ + + _mesa_find_temp_intervals(c->prog_instructions, c->nr_fp_insns, + intBegin, intEnd); + + for (index = 0; index < MAX_PROGRAM_TEMPS; index++) { + if (intEnd[index] != -1 && intEnd[index] < c->cur_inst) { + /* program temp[i] can be freed */ + int component; + /*printf(" temp[%d] is dead\n", index);*/ + for (component = 0; component < 4; component++) { + if (c->wm_regs[PROGRAM_TEMPORARY][index][component].inited) { + int r = c->wm_regs[PROGRAM_TEMPORARY][index][component].reg.nr; + release_grf(c, r); + /* + printf(" Reclaim temp %d, reg %d at inst %d\n", + index, r, c->cur_inst); + */ + c->wm_regs[PROGRAM_TEMPORARY][index][component].inited = GL_FALSE; + } + } + } + } +} + + + + /** * Preallocate registers. This sets up the Mesa to hardware register * mapping for certain registers, such as constants (uniforms/state vars) @@ -179,6 +294,10 @@ static void prealloc_reg(struct brw_wm_compile *c) struct brw_reg reg; int urb_read_length = 0; GLuint inputs = FRAG_BIT_WPOS | c->fp_interp_emitted | c->fp_deriv_emitted; + GLuint reg_index = 0; + + memset(c->used_grf, GL_FALSE, sizeof(c->used_grf)); + c->first_free_grf = 0; for (i = 0; i < 4; i++) { if (i < c->key.nr_depth_regs) @@ -187,14 +306,20 @@ static void prealloc_reg(struct brw_wm_compile *c) reg = brw_vec8_grf(0, 0); set_reg(c, PROGRAM_PAYLOAD, PAYLOAD_DEPTH, i, reg); } - c->reg_index += 2 * c->key.nr_depth_regs; + reg_index += 2 * c->key.nr_depth_regs; /* constants */ { - const int nr_params = c->fp->program.Base.Parameters->NumParameters; + const GLuint nr_params = c->fp->program.Base.Parameters->NumParameters; + const GLuint nr_temps = c->fp->program.Base.NumTemporaries; /* use a real constant buffer, or just use a section of the GRF? */ - c->fp->use_const_buffer = GL_FALSE; /* (nr_params > 8);*/ + /* XXX this heuristic may need adjustment... */ + if ((nr_params + nr_temps) * 4 + reg_index > 80) + c->fp->use_const_buffer = GL_TRUE; + else + c->fp->use_const_buffer = GL_FALSE; + /*printf("WM use_const_buffer = %d\n", c->fp->use_const_buffer);*/ if (c->fp->use_const_buffer) { /* We'll use a real constant buffer and fetch constants from @@ -216,7 +341,7 @@ static void prealloc_reg(struct brw_wm_compile *c) for (i = 0; i < nr_params; i++) { /* loop over XYZW channels */ for (j = 0; j < 4; j++, index++) { - reg = brw_vec1_grf(c->reg_index + index / 8, index % 8); + reg = brw_vec1_grf(reg_index + index / 8, index % 8); /* Save pointer to parameter/constant value. * Constants will be copied in prepare_constant_buffer() */ @@ -226,7 +351,7 @@ static void prealloc_reg(struct brw_wm_compile *c) } /* number of constant regs used (each reg is float[8]) */ c->nr_creg = 2 * ((4 * nr_params + 15) / 16); - c->reg_index += c->nr_creg; + reg_index += c->nr_creg; } } @@ -242,23 +367,52 @@ static void prealloc_reg(struct brw_wm_compile *c) fp_input = -1; if (fp_input >= 0 && inputs & (1 << fp_input)) { - urb_read_length = c->reg_index; - reg = brw_vec8_grf(c->reg_index, 0); + urb_read_length = reg_index; + reg = brw_vec8_grf(reg_index, 0); for (j = 0; j < 4; j++) set_reg(c, PROGRAM_PAYLOAD, fp_input, j, reg); } if (c->key.vp_outputs_written & (1 << i)) { - c->reg_index += 2; + reg_index += 2; } } c->prog_data.first_curbe_grf = c->key.nr_depth_regs * 2; c->prog_data.urb_read_length = urb_read_length; c->prog_data.curb_read_length = c->nr_creg; - c->emit_mask_reg = brw_uw1_reg(BRW_GENERAL_REGISTER_FILE, c->reg_index, 0); - c->reg_index++; - c->stack = brw_uw16_reg(BRW_GENERAL_REGISTER_FILE, c->reg_index, 0); - c->reg_index += 2; + c->emit_mask_reg = brw_uw1_reg(BRW_GENERAL_REGISTER_FILE, reg_index, 0); + reg_index++; + c->stack = brw_uw16_reg(BRW_GENERAL_REGISTER_FILE, reg_index, 0); + reg_index += 2; + + /* mark GRF regs [0..reg_index-1] as in-use */ + for (i = 0; i < reg_index; i++) + prealloc_grf(c, i); + + /* Don't use GRF 126, 127. Using them seems to lead to GPU lock-ups */ + prealloc_grf(c, 126); + prealloc_grf(c, 127); + + for (i = 0; i < c->nr_fp_insns; i++) { + const struct prog_instruction *inst = &c->prog_instructions[i]; + struct brw_reg dst[4]; + + switch (inst->Opcode) { + case OPCODE_TEX: + case OPCODE_TXB: + /* Allocate the channels of texture results contiguously, + * since they are written out that way by the sampler unit. + */ + for (j = 0; j < 4; j++) { + dst[j] = get_dst_reg(c, inst, j); + if (j != 0) + assert(dst[j].nr == dst[j - 1].nr + 1); + } + break; + default: + break; + } + } /* An instruction may reference up to three constants. * They'll be found in these registers. @@ -267,12 +421,12 @@ static void prealloc_reg(struct brw_wm_compile *c) if (c->fp->use_const_buffer) { for (i = 0; i < 3; i++) { c->current_const[i].index = -1; - c->current_const[i].reg = alloc_tmp(c); + c->current_const[i].reg = brw_vec8_grf(alloc_grf(c), 0); } } #if 0 printf("USE CONST BUFFER? %d\n", c->fp->use_const_buffer); - printf("AFTER PRE_ALLOC, reg_index = %d\n", c->reg_index); + printf("AFTER PRE_ALLOC, reg_index = %d\n", reg_index); #endif } @@ -376,6 +530,14 @@ static struct brw_reg get_src_reg(struct brw_wm_compile *c, const GLuint nr = 1; const GLuint component = GET_SWZ(src->Swizzle, channel); + /* Extended swizzle terms */ + if (component == SWIZZLE_ZERO) { + return brw_imm_f(0.0F); + } + else if (component == SWIZZLE_ONE) { + return brw_imm_f(1.0F); + } + if (c->fp->use_const_buffer && (src->File == PROGRAM_STATE_VAR || src->File == PROGRAM_CONSTANT || @@ -489,23 +651,6 @@ static void invoke_subroutine( struct brw_wm_compile *c, } } -static void emit_abs( struct brw_wm_compile *c, - const struct prog_instruction *inst) -{ - int i; - struct brw_compile *p = &c->func; - brw_set_saturate(p, inst->SaturateMode != SATURATE_OFF); - for (i = 0; i < 4; i++) { - if (inst->DstReg.WriteMask & (1<<i)) { - struct brw_reg src, dst; - dst = get_dst_reg(c, inst, i); - src = get_src_reg(c, inst, 0, i); - brw_MOV(p, dst, brw_abs(src)); - } - } - brw_set_saturate(p, 0); -} - static void emit_trunc( struct brw_wm_compile *c, const struct prog_instruction *inst) { @@ -673,27 +818,26 @@ static void emit_fb_write(struct brw_wm_compile *c, } if (c->key.dest_depth_reg) { - GLuint comp = c->key.dest_depth_reg / 2; - GLuint off = c->key.dest_depth_reg % 2; + const GLuint comp = c->key.dest_depth_reg / 2; + const GLuint off = c->key.dest_depth_reg % 2; - assert(comp == 1); - assert(off == 0); -#if 0 - /* XXX do we need this code? comp always 1, off always 0, it seems */ if (off != 0) { + /* XXX this code needs review/testing */ + struct brw_reg arg1_0 = get_src_reg(c, inst, 1, comp); + struct brw_reg arg1_1 = get_src_reg(c, inst, 1, comp+1); + brw_push_insn_state(p); brw_set_compression_control(p, BRW_COMPRESSION_NONE); - brw_MOV(p, brw_message_reg(nr), offset(arg1[comp],1)); + brw_MOV(p, brw_message_reg(nr), offset(arg1_0, 1)); /* 2nd half? */ - brw_MOV(p, brw_message_reg(nr+1), arg1[comp+1]); + brw_MOV(p, brw_message_reg(nr+1), arg1_1); brw_pop_insn_state(p); } else -#endif { - struct brw_reg src = get_src_reg(c, inst, 1, 1); - brw_MOV(p, brw_message_reg(nr), src); + struct brw_reg src = get_src_reg(c, inst, 1, 1); + brw_MOV(p, brw_message_reg(nr), src); } nr += 2; } @@ -882,12 +1026,20 @@ static void emit_dp3(struct brw_wm_compile *c, struct brw_reg src0[3], src1[3], dst; int i; struct brw_compile *p = &c->func; + GLuint mask = inst->DstReg.WriteMask; + int dst_chan = _mesa_ffs(mask & WRITEMASK_XYZW) - 1; + + if (!(mask & WRITEMASK_XYZW)) + return; + + assert(is_power_of_two(mask & WRITEMASK_XYZW)); + for (i = 0; i < 3; i++) { src0[i] = get_src_reg(c, inst, 0, i); src1[i] = get_src_reg_imm(c, inst, 1, i); } - dst = get_dst_reg(c, inst, get_scalar_dst_index(inst)); + dst = get_dst_reg(c, inst, dst_chan); 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->SaturateMode != SATURATE_OFF) ? 1 : 0); @@ -901,11 +1053,19 @@ static void emit_dp4(struct brw_wm_compile *c, struct brw_reg src0[4], src1[4], dst; int i; struct brw_compile *p = &c->func; + GLuint mask = inst->DstReg.WriteMask; + int dst_chan = _mesa_ffs(mask & WRITEMASK_XYZW) - 1; + + if (!(mask & WRITEMASK_XYZW)) + return; + + assert(is_power_of_two(mask & WRITEMASK_XYZW)); + for (i = 0; i < 4; i++) { src0[i] = get_src_reg(c, inst, 0, i); src1[i] = get_src_reg_imm(c, inst, 1, i); } - dst = get_dst_reg(c, inst, get_scalar_dst_index(inst)); + dst = get_dst_reg(c, inst, dst_chan); 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]); @@ -920,11 +1080,19 @@ static void emit_dph(struct brw_wm_compile *c, struct brw_reg src0[4], src1[4], dst; int i; struct brw_compile *p = &c->func; + GLuint mask = inst->DstReg.WriteMask; + int dst_chan = _mesa_ffs(mask & WRITEMASK_XYZW) - 1; + + if (!(mask & WRITEMASK_XYZW)) + return; + + assert(is_power_of_two(mask & WRITEMASK_XYZW)); + for (i = 0; i < 4; i++) { src0[i] = get_src_reg(c, inst, 0, i); src1[i] = get_src_reg_imm(c, inst, 1, i); } - dst = get_dst_reg(c, inst, get_scalar_dst_index(inst)); + dst = get_dst_reg(c, inst, dst_chan); 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]); @@ -942,37 +1110,28 @@ static void emit_math1(struct brw_wm_compile *c, const struct prog_instruction *inst, GLuint func) { struct brw_compile *p = &c->func; - struct brw_reg src0, dst, tmp; - const int mark = mark_tmps( c ); - int i; + struct brw_reg src0, dst; + GLuint mask = inst->DstReg.WriteMask; + int dst_chan = _mesa_ffs(mask & WRITEMASK_XYZW) - 1; + + if (!(mask & WRITEMASK_XYZW)) + return; - tmp = alloc_tmp(c); + assert(is_power_of_two(mask & WRITEMASK_XYZW)); /* Get first component of source register */ + dst = get_dst_reg(c, inst, dst_chan); src0 = get_src_reg(c, inst, 0, 0); - /* tmp = func(src0) */ brw_MOV(p, brw_message_reg(2), src0); brw_math(p, - tmp, + dst, func, (inst->SaturateMode != SATURATE_OFF) ? BRW_MATH_SATURATE_SATURATE : BRW_MATH_SATURATE_NONE, 2, brw_null_reg(), BRW_MATH_DATA_VECTOR, BRW_MATH_PRECISION_FULL); - - /*tmp.dw1.bits.swizzle = SWIZZLE_XXXX;*/ - - /* replicate tmp value across enabled dest channels */ - for (i = 0; i < 4; i++) { - if (inst->DstReg.WriteMask & (1 << i)) { - dst = get_dst_reg(c, inst, i); - brw_MOV(p, dst, tmp); - } - } - - release_tmps(c, mark); } static void emit_rcp(struct brw_wm_compile *c, @@ -1043,24 +1202,6 @@ static void emit_arl(struct brw_wm_compile *c, brw_set_saturate(p, 0); } -static void emit_sub(struct brw_wm_compile *c, - const struct prog_instruction *inst) -{ - struct brw_compile *p = &c->func; - struct brw_reg src0, src1, dst; - GLuint mask = inst->DstReg.WriteMask; - int i; - brw_set_saturate(p, (inst->SaturateMode != SATURATE_OFF) ? 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, 0, i); - src1 = get_src_reg_imm(c, inst, 1, i); - brw_ADD(p, dst, src0, negate(src1)); - } - } - brw_set_saturate(p, 0); -} static void emit_mul(struct brw_wm_compile *c, const struct prog_instruction *inst) @@ -1172,7 +1313,15 @@ static void emit_pow(struct brw_wm_compile *c, { struct brw_compile *p = &c->func; struct brw_reg dst, src0, src1; - dst = get_dst_reg(c, inst, get_scalar_dst_index(inst)); + GLuint mask = inst->DstReg.WriteMask; + int dst_chan = _mesa_ffs(mask & WRITEMASK_XYZW) - 1; + + if (!(mask & WRITEMASK_XYZW)) + return; + + assert(is_power_of_two(mask & WRITEMASK_XYZW)); + + dst = get_dst_reg(c, inst, dst_chan); src0 = get_src_reg_imm(c, inst, 0, 0); src1 = get_src_reg_imm(c, inst, 1, 0); @@ -2474,8 +2623,12 @@ static void emit_txb(struct brw_wm_compile *c, { struct brw_compile *p = &c->func; struct brw_reg dst[4], src[4], payload_reg; - GLuint unit = c->fp->program.Base.SamplerUnits[inst->TexSrcUnit]; + /* Note: TexSrcUnit was already looked up through SamplerTextures[] */ + const GLuint unit = inst->TexSrcUnit; GLuint i; + GLuint msg_type; + + assert(unit < BRW_MAX_TEX_UNIT); payload_reg = get_reg(c, PROGRAM_PAYLOAD, PAYLOAD_DEPTH, 0, 1, 0, 0); @@ -2496,14 +2649,26 @@ static void emit_txb(struct brw_wm_compile *c, brw_MOV(p, brw_message_reg(3), src[1]); brw_MOV(p, brw_message_reg(4), brw_imm_f(0)); break; - default: + case TEXTURE_3D_INDEX: + case TEXTURE_CUBE_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), src[2]); break; + default: + /* invalid target */ + abort(); } brw_MOV(p, brw_message_reg(5), src[3]); /* bias */ brw_MOV(p, brw_message_reg(6), brw_imm_f(0)); /* ref (unused?) */ + + if (BRW_IS_IGDNG(p->brw)) { + msg_type = BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE_BIAS_IGDNG; + } else { + /* Does it work well on SIMD8? */ + msg_type = BRW_SAMPLER_MESSAGE_SIMD16_SAMPLE_BIAS; + } + brw_SAMPLE(p, retype(vec8(dst[0]), BRW_REGISTER_TYPE_UW), /* dest */ 1, /* msg_reg_nr */ @@ -2511,10 +2676,12 @@ static void emit_txb(struct brw_wm_compile *c, SURF_INDEX_TEXTURE(unit), unit, /* sampler */ inst->DstReg.WriteMask, /* writemask */ - BRW_SAMPLER_MESSAGE_SIMD16_SAMPLE_BIAS, /* msg_type */ + msg_type, /* msg_type */ 4, /* response_length */ 4, /* msg_length */ - 0); /* eot */ + 0, /* eot */ + 1, + BRW_SAMPLER_SIMD_MODE_SIMD8); } @@ -2523,11 +2690,15 @@ static void emit_tex(struct brw_wm_compile *c, { struct brw_compile *p = &c->func; struct brw_reg dst[4], src[4], payload_reg; - GLuint unit = c->fp->program.Base.SamplerUnits[inst->TexSrcUnit]; + /* Note: TexSrcUnit was already looked up through SamplerTextures[] */ + const GLuint unit = inst->TexSrcUnit; GLuint msg_len; GLuint i, nr; GLuint emit; GLboolean shadow = (c->key.shadowtex_mask & (1<<unit)) ? 1 : 0; + GLuint msg_type; + + assert(unit < BRW_MAX_TEX_UNIT); payload_reg = get_reg(c, PROGRAM_PAYLOAD, PAYLOAD_DEPTH, 0, 1, 0, 0); @@ -2546,10 +2717,14 @@ static void emit_tex(struct brw_wm_compile *c, emit = WRITEMASK_XY; nr = 2; break; - default: + case TEXTURE_3D_INDEX: + case TEXTURE_CUBE_INDEX: emit = WRITEMASK_XYZ; nr = 3; break; + default: + /* invalid target */ + abort(); } msg_len = 1; @@ -2568,6 +2743,16 @@ static void emit_tex(struct brw_wm_compile *c, brw_MOV(p, brw_message_reg(6), src[2]); /* ref value / R coord */ } + if (BRW_IS_IGDNG(p->brw)) { + if (shadow) + msg_type = BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE_COMPARE_IGDNG; + else + msg_type = BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE_IGDNG; + } else { + /* Does it work for shadow on SIMD8 ? */ + msg_type = BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE; + } + brw_SAMPLE(p, retype(vec8(dst[0]), BRW_REGISTER_TYPE_UW), /* dest */ 1, /* msg_reg_nr */ @@ -2575,10 +2760,12 @@ static void emit_tex(struct brw_wm_compile *c, SURF_INDEX_TEXTURE(unit), unit, /* sampler */ inst->DstReg.WriteMask, /* writemask */ - BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE, /* msg_type */ + msg_type, /* msg_type */ 4, /* response_length */ shadow ? 6 : 4, /* msg_length */ - 0); /* eot */ + 0, /* eot */ + 1, + BRW_SAMPLER_SIMD_MODE_SIMD8); if (shadow) brw_MOV(p, dst[3], brw_imm_f(1.0)); @@ -2595,15 +2782,15 @@ static void post_wm_emit( struct brw_wm_compile *c ) static void brw_wm_emit_glsl(struct brw_context *brw, struct brw_wm_compile *c) { -#define MAX_IFSN 32 +#define MAX_IF_DEPTH 32 #define MAX_LOOP_DEPTH 32 - struct brw_instruction *if_inst[MAX_IFSN], *loop_inst[MAX_LOOP_DEPTH]; - struct brw_instruction *inst0, *inst1; - int i, if_insn = 0, loop_insn = 0; + struct brw_instruction *if_inst[MAX_IF_DEPTH], *loop_inst[MAX_LOOP_DEPTH]; + GLuint i, if_depth = 0, loop_depth = 0; struct brw_compile *p = &c->func; struct brw_indirect stack_index = brw_indirect(0, 0); - c->reg_index = 0; + c->out_of_regs = GL_FALSE; + prealloc_reg(c); brw_set_compression_control(p, BRW_COMPRESSION_NONE); brw_MOV(p, get_addr_reg(stack_index), brw_address(c->stack)); @@ -2611,6 +2798,8 @@ static void brw_wm_emit_glsl(struct brw_context *brw, struct brw_wm_compile *c) for (i = 0; i < c->nr_fp_insns; i++) { const struct prog_instruction *inst = &c->prog_instructions[i]; + c->cur_inst = i; + #if 0 _mesa_printf("Inst %d: ", i); _mesa_print_instruction(inst); @@ -2653,18 +2842,12 @@ static void brw_wm_emit_glsl(struct brw_context *brw, struct brw_wm_compile *c) case WM_FRONTFACING: emit_frontfacing(c, inst); break; - case OPCODE_ABS: - emit_abs(c, inst); - break; case OPCODE_ADD: emit_add(c, inst); break; case OPCODE_ARL: emit_arl(c, inst); break; - case OPCODE_SUB: - emit_sub(c, inst); - break; case OPCODE_FRC: emit_frc(c, inst); break; @@ -2770,15 +2953,15 @@ static void brw_wm_emit_glsl(struct brw_context *brw, struct brw_wm_compile *c) emit_kil(c); break; case OPCODE_IF: - assert(if_insn < MAX_IFSN); - if_inst[if_insn++] = brw_IF(p, BRW_EXECUTE_8); + assert(if_depth < MAX_IF_DEPTH); + if_inst[if_depth++] = brw_IF(p, BRW_EXECUTE_8); break; case OPCODE_ELSE: - if_inst[if_insn-1] = brw_ELSE(p, if_inst[if_insn-1]); + if_inst[if_depth-1] = brw_ELSE(p, if_inst[if_depth-1]); break; case OPCODE_ENDIF: - assert(if_insn > 0); - brw_ENDIF(p, if_inst[--if_insn]); + assert(if_depth > 0); + brw_ENDIF(p, if_inst[--if_depth]); break; case OPCODE_BGNSUB: brw_save_label(p, inst->Comment, p->nr_insn); @@ -2812,7 +2995,7 @@ static void brw_wm_emit_glsl(struct brw_context *brw, struct brw_wm_compile *c) break; case OPCODE_BGNLOOP: /* XXX may need to invalidate the current_constant regs */ - loop_inst[loop_insn++] = brw_DO(p, BRW_EXECUTE_8); + loop_inst[loop_depth++] = brw_DO(p, BRW_EXECUTE_8); break; case OPCODE_BRK: brw_BREAK(p); @@ -2823,25 +3006,34 @@ static void brw_wm_emit_glsl(struct brw_context *brw, struct brw_wm_compile *c) brw_set_predicate_control(p, BRW_PREDICATE_NONE); break; case OPCODE_ENDLOOP: - loop_insn--; - inst0 = inst1 = brw_WHILE(p, loop_inst[loop_insn]); - /* patch all the BREAK instructions from - last BEGINLOOP */ - while (inst0 > loop_inst[loop_insn]) { - inst0--; - if (inst0->header.opcode == BRW_OPCODE_BREAK) { - inst0->bits3.if_else.jump_count = inst1 - inst0 + 1; + { + struct brw_instruction *inst0, *inst1; + GLuint br = 1; + + if (BRW_IS_IGDNG(brw)) + br = 2; + + loop_depth--; + inst0 = inst1 = brw_WHILE(p, loop_inst[loop_depth]); + /* patch all the BREAK/CONT instructions from last BGNLOOP */ + while (inst0 > loop_inst[loop_depth]) { + inst0--; + if (inst0->header.opcode == BRW_OPCODE_BREAK) { + inst0->bits3.if_else.jump_count = br * (inst1 - inst0 + 1); inst0->bits3.if_else.pop_count = 0; - } else if (inst0->header.opcode == BRW_OPCODE_CONTINUE) { - inst0->bits3.if_else.jump_count = inst1 - inst0; + } + else if (inst0->header.opcode == BRW_OPCODE_CONTINUE) { + inst0->bits3.if_else.jump_count = br * (inst1 - inst0); inst0->bits3.if_else.pop_count = 0; - } - } - break; + } + } + } + break; default: _mesa_printf("unsupported IR in fragment shader %d\n", inst->Opcode); } + if (inst->CondUpdate) brw_set_predicate_control(p, BRW_PREDICATE_NORMAL); else @@ -2849,13 +3041,14 @@ static void brw_wm_emit_glsl(struct brw_context *brw, struct brw_wm_compile *c) } post_wm_emit(c); - if (c->reg_index >= BRW_WM_MAX_GRF) { - _mesa_problem(NULL, "Ran out of registers in brw_wm_emit_glsl()"); - /* XXX we need to do some proper error recovery here */ + if (INTEL_DEBUG & DEBUG_WM) { + _mesa_printf("wm-native:\n"); + for (i = 0; i < p->nr_insn; i++) + brw_disasm(stderr, &p->store[i]); + _mesa_printf("\n"); } } - /** * Do GPU code generation for shaders that use GLSL features such as * flow control. Other shaders will be compiled with the @@ -2876,6 +3069,6 @@ void brw_wm_glsl_emit(struct brw_context *brw, struct brw_wm_compile *c) brw_wm_print_program(c, "brw_wm_glsl_emit done"); } - c->prog_data.total_grf = c->reg_index; + c->prog_data.total_grf = num_grf_used(c); c->prog_data.total_scratch = 0; } |