diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm.h | 8 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_emit.c | 83 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_fp.c | 38 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_glsl.c | 94 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_pass1.c | 5 |
5 files changed, 126 insertions, 102 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm.h b/src/mesa/drivers/dri/i965/brw_wm.h index ae98b5492db..872b1f3ecf4 100644 --- a/src/mesa/drivers/dri/i965/brw_wm.h +++ b/src/mesa/drivers/dri/i965/brw_wm.h @@ -38,6 +38,8 @@ #include "brw_context.h" #include "brw_eu.h" +#define SATURATE (1<<5) + /* A big lookup table is used to figure out which and how many * additional regs will inserted before the main payload in the WM * program execution. These mainly relate to depth and stencil @@ -203,7 +205,6 @@ struct brw_wm_compile { GLuint fp_temp; GLuint fp_interp_emitted; GLuint fp_fragcolor_emitted; - GLuint fp_deriv_emitted; struct prog_src_register pixel_xy; struct prog_src_register delta_xy; @@ -299,5 +300,10 @@ void brw_wm_lookup_iz( GLuint line_aa, GLboolean brw_wm_is_glsl(const struct gl_fragment_program *fp); void brw_wm_glsl_emit(struct brw_context *brw, struct brw_wm_compile *c); +void emit_ddxy(struct brw_compile *p, + const struct brw_reg *dst, + GLuint mask, + GLboolean is_ddx, + const struct brw_reg *arg0); #endif diff --git a/src/mesa/drivers/dri/i965/brw_wm_emit.c b/src/mesa/drivers/dri/i965/brw_wm_emit.c index 981864323ec..bf80a2942a4 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_emit.c +++ b/src/mesa/drivers/dri/i965/brw_wm_emit.c @@ -34,8 +34,6 @@ #include "brw_context.h" #include "brw_wm.h" -#define SATURATE (1<<5) - /* Not quite sure how correct this is - need to understand horiz * vs. vertical strides a little better. */ @@ -281,6 +279,79 @@ static void emit_frontfacing( struct brw_compile *p, brw_set_predicate_control_flag_value(p, 0xff); } +/* For OPCODE_DDX and OPCODE_DDY, per channel of output we've got input + * looking like: + * + * arg0: ss0.tl ss0.tr ss0.bl ss0.br ss1.tl ss1.tr ss1.bl ss1.br + * + * and we're trying to produce: + * + * DDX DDY + * dst: (ss0.tr - ss0.tl) (ss0.tl - ss0.bl) + * (ss0.tr - ss0.tl) (ss0.tr - ss0.br) + * (ss0.br - ss0.bl) (ss0.tl - ss0.bl) + * (ss0.br - ss0.bl) (ss0.tr - ss0.br) + * (ss1.tr - ss1.tl) (ss1.tl - ss1.bl) + * (ss1.tr - ss1.tl) (ss1.tr - ss1.br) + * (ss1.br - ss1.bl) (ss1.tl - ss1.bl) + * (ss1.br - ss1.bl) (ss1.tr - ss1.br) + * + * and add another set of two more subspans if in 16-pixel dispatch mode. + * + * For DDX, it ends up being easy: width = 2, horiz=0 gets us the same result + * for each pair, and vertstride = 2 jumps us 2 elements after processing a + * pair. But for DDY, it's harder, as we want to produce the pairs swizzled + * between each other. We could probably do it like ddx and swizzle the right + * order later, but bail for now and just produce + * ((ss0.tl - ss0.bl)x4 (ss1.tl - ss1.bl)x4) + */ +void emit_ddxy(struct brw_compile *p, + const struct brw_reg *dst, + GLuint mask, + GLboolean is_ddx, + const struct brw_reg *arg0) +{ + int i; + struct brw_reg src0, src1; + + if (mask & SATURATE) + brw_set_saturate(p, 1); + for (i = 0; i < 4; i++ ) { + if (mask & (1<<i)) { + if (is_ddx) { + src0 = brw_reg(arg0[i].file, arg0[i].nr, 1, + BRW_REGISTER_TYPE_F, + BRW_VERTICAL_STRIDE_2, + BRW_WIDTH_2, + BRW_HORIZONTAL_STRIDE_0, + BRW_SWIZZLE_XYZW, WRITEMASK_XYZW); + src1 = brw_reg(arg0[i].file, arg0[i].nr, 0, + BRW_REGISTER_TYPE_F, + BRW_VERTICAL_STRIDE_2, + BRW_WIDTH_2, + BRW_HORIZONTAL_STRIDE_0, + BRW_SWIZZLE_XYZW, WRITEMASK_XYZW); + } else { + src0 = brw_reg(arg0[i].file, arg0[i].nr, 0, + BRW_REGISTER_TYPE_F, + BRW_VERTICAL_STRIDE_4, + BRW_WIDTH_4, + BRW_HORIZONTAL_STRIDE_0, + BRW_SWIZZLE_XYZW, WRITEMASK_XYZW); + src1 = brw_reg(arg0[i].file, arg0[i].nr, 2, + BRW_REGISTER_TYPE_F, + BRW_VERTICAL_STRIDE_4, + BRW_WIDTH_4, + BRW_HORIZONTAL_STRIDE_0, + BRW_SWIZZLE_XYZW, WRITEMASK_XYZW); + } + brw_ADD(p, dst[i], src0, negate(src1)); + } + } + if (mask & SATURATE) + brw_set_saturate(p, 0); +} + static void emit_alu1( struct brw_compile *p, struct brw_instruction *(*func)(struct brw_compile *, struct brw_reg, @@ -1272,6 +1343,14 @@ void brw_wm_emit( struct brw_wm_compile *c ) emit_alu1(p, brw_RNDD, dst, dst_flags, args[0]); break; + case OPCODE_DDX: + emit_ddxy(p, dst, dst_flags, GL_TRUE, args[0]); + break; + + case OPCODE_DDY: + emit_ddxy(p, dst, dst_flags, GL_FALSE, args[0]); + break; + case OPCODE_DP3: emit_dp3(p, dst, dst_flags, args[0], args[1]); break; diff --git a/src/mesa/drivers/dri/i965/brw_wm_fp.c b/src/mesa/drivers/dri/i965/brw_wm_fp.c index 123fe841c3f..4e3edfbbffa 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_fp.c +++ b/src/mesa/drivers/dri/i965/brw_wm_fp.c @@ -494,38 +494,6 @@ static void emit_interp( struct brw_wm_compile *c, c->fp_interp_emitted |= 1<<idx; } -static void emit_ddx( struct brw_wm_compile *c, - const struct prog_instruction *inst ) -{ - GLuint idx = inst->SrcReg[0].Index; - struct prog_src_register interp = src_reg(PROGRAM_PAYLOAD, idx); - - c->fp_deriv_emitted |= 1<<idx; - emit_op(c, - OPCODE_DDX, - inst->DstReg, - 0, - interp, - get_pixel_w(c), - src_undef()); -} - -static void emit_ddy( struct brw_wm_compile *c, - const struct prog_instruction *inst ) -{ - GLuint idx = inst->SrcReg[0].Index; - struct prog_src_register interp = src_reg(PROGRAM_PAYLOAD, idx); - - c->fp_deriv_emitted |= 1<<idx; - emit_op(c, - OPCODE_DDY, - inst->DstReg, - 0, - interp, - get_pixel_w(c), - src_undef()); -} - /*********************************************************************** * Hacks to extend the program parameter and constant lists. */ @@ -1186,12 +1154,6 @@ void brw_wm_pass_fp( struct brw_wm_compile *c ) */ out->DstReg.WriteMask = 0; break; - case OPCODE_DDX: - emit_ddx(c, inst); - break; - case OPCODE_DDY: - emit_ddy(c, inst); - break; case OPCODE_END: emit_fb_write(c); break; diff --git a/src/mesa/drivers/dri/i965/brw_wm_glsl.c b/src/mesa/drivers/dri/i965/brw_wm_glsl.c index 7c210abbce3..c9fe1dd8ad2 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_glsl.c +++ b/src/mesa/drivers/dri/i965/brw_wm_glsl.c @@ -22,6 +22,7 @@ static struct brw_reg get_dst_reg(struct brw_wm_compile *c, GLboolean brw_wm_is_glsl(const struct gl_fragment_program *fp) { int i; + for (i = 0; i < fp->Base.NumInstructions; i++) { const struct prog_instruction *inst = &fp->Base.Instructions[i]; switch (inst->Opcode) { @@ -31,8 +32,6 @@ GLboolean brw_wm_is_glsl(const struct gl_fragment_program *fp) case OPCODE_CAL: case OPCODE_BRK: case OPCODE_RET: - case OPCODE_DDX: - case OPCODE_DDY: case OPCODE_NOISE1: case OPCODE_NOISE2: case OPCODE_NOISE3: @@ -293,7 +292,7 @@ static void prealloc_reg(struct brw_wm_compile *c) int i, j; struct brw_reg reg; int urb_read_length = 0; - GLuint inputs = FRAG_BIT_WPOS | c->fp_interp_emitted | c->fp_deriv_emitted; + GLuint inputs = FRAG_BIT_WPOS | c->fp_interp_emitted; GLuint reg_index = 0; memset(c->used_grf, GL_FALSE, sizeof(c->used_grf)); @@ -1474,61 +1473,6 @@ static void emit_sne(struct brw_wm_compile *c, emit_sop(c, inst, BRW_CONDITIONAL_NEQ); } -static void emit_ddx(struct brw_wm_compile *c, - const struct prog_instruction *inst) -{ - struct brw_compile *p = &c->func; - GLuint mask = inst->DstReg.WriteMask; - struct brw_reg interp[4]; - struct brw_reg dst; - struct brw_reg src0, w; - GLuint nr, i; - src0 = get_src_reg(c, inst, 0, 0); - w = get_src_reg(c, inst, 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->SaturateMode != SATURATE_OFF); - 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, - const struct prog_instruction *inst) -{ - struct brw_compile *p = &c->func; - GLuint mask = inst->DstReg.WriteMask; - struct brw_reg interp[4]; - struct brw_reg dst; - struct brw_reg src0, w; - GLuint nr, i; - - src0 = get_src_reg(c, inst, 0, 0); - nr = src0.nr; - w = get_src_reg(c, inst, 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->SaturateMode != SATURATE_OFF); - 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); -} - static INLINE struct brw_reg high_words( struct brw_reg reg ) { return stride( suboffset( retype( reg, BRW_REGISTER_TYPE_W ), 1 ), @@ -2780,6 +2724,21 @@ static void post_wm_emit( struct brw_wm_compile *c ) brw_resolve_cals(&c->func); } +static void +get_argument_regs(struct brw_wm_compile *c, + const struct prog_instruction *inst, + int index, + struct brw_reg *regs, + int mask) +{ + int i; + + for (i = 0; i < 4; i++) { + if (mask & (1 << i)) + regs[i] = get_src_reg(c, inst, index, i); + } +} + static void brw_wm_emit_glsl(struct brw_context *brw, struct brw_wm_compile *c) { #define MAX_IF_DEPTH 32 @@ -2797,6 +2756,9 @@ 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]; + int dst_flags; + struct brw_reg args[3][4], dst[4]; + int j; c->cur_inst = i; @@ -2814,6 +2776,10 @@ static void brw_wm_emit_glsl(struct brw_context *brw, struct brw_wm_compile *c) else brw_set_conditionalmod(p, BRW_CONDITIONAL_NONE); + dst_flags = inst->DstReg.WriteMask; + if (inst->SaturateMode == SATURATE_ZERO_ONE) + dst_flags |= SATURATE; + switch (inst->Opcode) { case WM_PIXELXY: emit_pixel_xy(c, inst); @@ -2899,10 +2865,16 @@ static void brw_wm_emit_glsl(struct brw_context *brw, struct brw_wm_compile *c) emit_min_max(c, inst); break; case OPCODE_DDX: - emit_ddx(c, inst); - break; case OPCODE_DDY: - emit_ddy(c, inst); + for (j = 0; j < 4; j++) { + if (inst->DstReg.WriteMask & (1 << j)) + dst[j] = get_dst_reg(c, inst, j); + else + dst[j] = brw_null_reg(); + } + get_argument_regs(c, inst, 0, args[0], WRITEMASK_XYZW); + emit_ddxy(p, dst, dst_flags, (inst->Opcode == OPCODE_DDX), + args[0]); break; case OPCODE_SLT: emit_slt(c, inst); diff --git a/src/mesa/drivers/dri/i965/brw_wm_pass1.c b/src/mesa/drivers/dri/i965/brw_wm_pass1.c index 9c68bfd78b2..b4493940292 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_pass1.c +++ b/src/mesa/drivers/dri/i965/brw_wm_pass1.c @@ -178,6 +178,11 @@ void brw_wm_pass1( struct brw_wm_compile *c ) read1 = writemask; break; + case OPCODE_DDX: + case OPCODE_DDY: + read0 = writemask; + break; + case OPCODE_MAD: case OPCODE_CMP: case OPCODE_LRP: |