diff options
| -rw-r--r-- | src/mesa/drivers/dri/r300/r300_fragprog.c | 102 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/r300/r300_fragprog.h | 3 |
2 files changed, 88 insertions, 17 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_fragprog.c b/src/mesa/drivers/dri/r300/r300_fragprog.c index 2d947dea3af..91ec4f855c2 100644 --- a/src/mesa/drivers/dri/r300/r300_fragprog.c +++ b/src/mesa/drivers/dri/r300/r300_fragprog.c @@ -82,7 +82,8 @@ static const struct { { "LG2", 1, R300_FPI0_OUTC_REPL_ALPHA, R300_FPI2_OUTA_LG2 }, { "RCP", 1, R300_FPI0_OUTC_REPL_ALPHA, R300_FPI2_OUTA_RCP }, { "RSQ", 1, R300_FPI0_OUTC_REPL_ALPHA, R300_FPI2_OUTA_RSQ }, - { "REPL_ALPHA", 1, R300_FPI0_OUTC_REPL_ALPHA, PFS_INVAL } + { "REPL_ALPHA", 1, R300_FPI0_OUTC_REPL_ALPHA, PFS_INVAL }, + { "CMPH", 3, R300_FPI0_OUTC_CMPH, PFS_INVAL }, }; #define MAKE_SWZ3(x, y, z) (MAKE_SWIZZLE4(SWIZZLE_##x, \ @@ -180,7 +181,7 @@ static const pfs_reg_t undef = { valid: GL_FALSE }; -/* constant zero source */ +/* constant one source */ static const pfs_reg_t pfs_one = { type: REG_TYPE_CONST, index: 0, @@ -189,7 +190,16 @@ static const pfs_reg_t pfs_one = { valid: GL_TRUE }; -/* constant one source */ +/* constant half source */ +static const pfs_reg_t pfs_half = { + type: REG_TYPE_CONST, + index: 0, + v_swz: SWIZZLE_HHH, + s_swz: SWIZZLE_HALF, + valid: GL_TRUE +}; + +/* constant zero source */ static const pfs_reg_t pfs_zero = { type: REG_TYPE_CONST, index: 0, @@ -319,7 +329,6 @@ static pfs_reg_t emit_param4fv(struct r300_fragment_program *rp, return r; } -#if 0 static pfs_reg_t emit_const4fv(struct r300_fragment_program *rp, GLfloat *cp) { pfs_reg_t r = undef; @@ -330,13 +339,11 @@ static pfs_reg_t emit_const4fv(struct r300_fragment_program *rp, GLfloat *cp) ERROR("Out of hw constants!\n"); return r; } - - COPY_4V(rp->constant[r.index], cp); + COPY_4V(rp->constant[r.index], cp); r.valid = GL_TRUE; return r; } -#endif static __inline pfs_reg_t negate(pfs_reg_t r) { @@ -773,13 +780,15 @@ static void emit_tex(struct r300_fragment_program *rp, cs->dest_in_node = 0; } - if (rp->cur_node == 0) rp->first_node_has_tex = 1; + if (rp->cur_node == 0) + rp->first_node_has_tex = 1; - rp->tex.inst[rp->tex.length++] = 0 - | (hwsrc << R300_FPITX_SRC_SHIFT) - | (hwdest << R300_FPITX_DST_SHIFT) - | (unit << R300_FPITX_IMAGE_SHIFT) - | (opcode << R300_FPITX_OPCODE_SHIFT); /* not entirely sure about this */ + rp->tex.inst[rp->tex.length++] = 0 + | (hwsrc << R300_FPITX_SRC_SHIFT) + | (hwdest << R300_FPITX_DST_SHIFT) + | (unit << R300_FPITX_IMAGE_SHIFT) + /* not entirely sure about this */ + | (opcode << R300_FPITX_OPCODE_SHIFT); cs->dest_in_node |= (1 << hwdest); if (coord.type != REG_TYPE_CONST) @@ -884,7 +893,7 @@ static void emit_arith(struct r300_fragment_program *rp, int op, vop = r300_fpop[op].v_op; sop = r300_fpop[op].s_op; - argc = r300_fpop[op].argc; + argc = r300_fpop[op].argc; if ((mask & WRITEMASK_XYZ) || vop == R300_FPI0_OUTC_DP3) emit_vop = GL_TRUE; @@ -1039,7 +1048,9 @@ static GLboolean parse_program(struct r300_fragment_program *rp) const struct prog_instruction *inst = mp->Base.Instructions; struct prog_instruction *fpi; pfs_reg_t src[3], dest, temp; + pfs_reg_t cnst; int flags, mask = 0; + GLfloat cnstv[4] = {0.0, 0.0, 0.0, 0.0}; if (!inst || inst[0].Opcode == OPCODE_END) { ERROR("empty program?\n"); @@ -1179,7 +1190,66 @@ static GLboolean parse_program(struct r300_fragment_program *rp) flags); break; case OPCODE_LIT: - ERROR("LIT not implemented\n"); + /* LIT + * if (s.x < 0) t.x = 0; else t.x = s.x; + * if (s.y < 0) t.y = 0; else t.y = s.y; + * if (s.w > 128.0) t.w = 128.0; else t.w = s.w; + * if (s.w < -128.0) t.w = -128.0; else t.w = s.w; + * r.x = 1.0 + * if (t.x > 0) r.y = pow(t.y, t.w); else r.y = 0; + * Also r.y = 0 if t.y < 0 + * For the t.x > 0 FGLRX use the CMPH opcode which + * change the compare to (t.x + 0.5) > 0.5 we may + * save one instruction by doing CMP -t.x + */ + cnstv[0] = cnstv[1] = cnstv[2] = cnstv[4] = 0.50001; + src[0] = t_src(rp, fpi->SrcReg[0]); + temp = get_temp_reg(rp); + cnst = emit_const4fv(rp, cnstv); + emit_arith(rp, PFS_OP_CMP, temp, + WRITEMASK_X | WRITEMASK_Y, + src[0], pfs_zero, src[0], flags); + emit_arith(rp, PFS_OP_MIN, temp, WRITEMASK_Z, + swizzle(keep(src[0]), W, W, W, W), + cnst, undef, flags); + emit_arith(rp, PFS_OP_LG2, temp, WRITEMASK_W, + swizzle(temp, Y, Y, Y, Y), + undef, undef, flags); + emit_arith(rp, PFS_OP_MAX, temp, WRITEMASK_Z, + temp, negate(cnst), undef, flags); + emit_arith(rp, PFS_OP_MAD, temp, WRITEMASK_W, + temp, swizzle(temp, Z, Z, Z, Z), + pfs_zero, flags); + emit_arith(rp, PFS_OP_EX2, temp, WRITEMASK_W, + temp, undef, undef, flags); + emit_arith(rp, PFS_OP_MAD, dest, WRITEMASK_Y, + swizzle(keep(temp), X, X, X, X), + pfs_one, pfs_zero, flags); +#if 0 + emit_arith(rp, PFS_OP_MAD, temp, WRITEMASK_X, + temp, pfs_one, pfs_half, flags); + emit_arith(rp, PFS_OP_CMPH, temp, WRITEMASK_Z, + swizzle(keep(temp), W, W, W, W), + pfs_zero, swizzle(keep(temp), X, X, X, X), + flags); +#else + emit_arith(rp, PFS_OP_CMP, temp, WRITEMASK_Z, + pfs_zero, + swizzle(keep(temp), W, W, W, W), + negate(swizzle(keep(temp), X, X, X, X)), + flags); +#endif + emit_arith(rp, PFS_OP_CMP, dest, WRITEMASK_Z, + pfs_zero, temp, + negate(swizzle(keep(temp), Y, Y, Y, Y)), + flags); + emit_arith(rp, PFS_OP_MAD, dest, + WRITEMASK_X | WRITEMASK_W, + pfs_one, + pfs_one, + pfs_zero, + flags); + free_temp(rp, temp); break; case OPCODE_LRP: src[0] = t_src(rp, fpi->SrcReg[0]); @@ -1345,7 +1415,7 @@ static GLboolean parse_program(struct r300_fragment_program *rp) return GL_FALSE; } - + return GL_TRUE; } diff --git a/src/mesa/drivers/dri/r300/r300_fragprog.h b/src/mesa/drivers/dri/r300/r300_fragprog.h index e7dbaf973e2..4bbaa07e012 100644 --- a/src/mesa/drivers/dri/r300/r300_fragprog.h +++ b/src/mesa/drivers/dri/r300/r300_fragprog.h @@ -78,7 +78,8 @@ typedef struct r300_fragment_program_swizzle { #define PFS_OP_RCP 9 #define PFS_OP_RSQ 10 #define PFS_OP_REPL_ALPHA 11 -#define MAX_PFS_OP 11 +#define PFS_OP_CMPH 12 +#define MAX_PFS_OP 12 #define PFS_FLAG_SAT (1 << 0) #define PFS_FLAG_ABS (1 << 1) |