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 | 154 |
1 files changed, 77 insertions, 77 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_glsl.c b/src/mesa/drivers/dri/i965/brw_wm_glsl.c index 85a4237d5a..a5b18ec7d7 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_glsl.c +++ b/src/mesa/drivers/dri/i965/brw_wm_glsl.c @@ -10,6 +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 @@ -22,6 +25,7 @@ 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_ENDIF: case OPCODE_CAL: @@ -130,19 +134,6 @@ 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; @@ -402,6 +393,27 @@ static void prealloc_reg(struct brw_wm_compile *c) 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. * XXX alloc these on demand! @@ -639,23 +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) { @@ -1031,12 +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); @@ -1050,11 +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]); @@ -1069,11 +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]); @@ -1091,37 +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, @@ -1192,24 +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) @@ -1321,7 +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); @@ -2828,18 +2828,12 @@ 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; @@ -3032,8 +3026,14 @@ static void brw_wm_emit_glsl(struct brw_context *brw, struct brw_wm_compile *c) brw_set_predicate_control(p, BRW_PREDICATE_NONE); } post_wm_emit(c); -} + 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 |