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author | Jakob Bornecrantz <jakob@vmware.com> | 2009-09-29 16:07:11 -0700 |
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committer | Jakob Bornecrantz <jakob@vmware.com> | 2009-10-05 19:48:08 +0100 |
commit | f00da2a3ff59c1a7104ac25a1c6eba5a6050ad68 (patch) | |
tree | 61578c54a21671bc5385f1d262dfa4a34f9a369f /src/gallium/drivers/i915/i915_fpc_emit.c | |
parent | c4b821a4c64d75d944653d665bede946763ed95b (diff) | |
download | external_mesa3d-f00da2a3ff59c1a7104ac25a1c6eba5a6050ad68.zip external_mesa3d-f00da2a3ff59c1a7104ac25a1c6eba5a6050ad68.tar.gz external_mesa3d-f00da2a3ff59c1a7104ac25a1c6eba5a6050ad68.tar.bz2 |
i915g: Drop the simple sufix
None of the other driver have a silly sufix,
so just drop it. Nothing new added in this commit
or any other commit but this is better marketing.
Diffstat (limited to 'src/gallium/drivers/i915/i915_fpc_emit.c')
-rw-r--r-- | src/gallium/drivers/i915/i915_fpc_emit.c | 375 |
1 files changed, 375 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915/i915_fpc_emit.c b/src/gallium/drivers/i915/i915_fpc_emit.c new file mode 100644 index 0000000..b054ce4 --- /dev/null +++ b/src/gallium/drivers/i915/i915_fpc_emit.c @@ -0,0 +1,375 @@ +/************************************************************************** + * + * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. + * 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, sub license, 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS 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 "i915_reg.h" +#include "i915_context.h" +#include "i915_fpc.h" +#include "util/u_math.h" + + +#define A0_DEST( reg ) (((reg)&UREG_TYPE_NR_MASK)>>UREG_A0_DEST_SHIFT_LEFT) +#define D0_DEST( reg ) (((reg)&UREG_TYPE_NR_MASK)>>UREG_A0_DEST_SHIFT_LEFT) +#define T0_DEST( reg ) (((reg)&UREG_TYPE_NR_MASK)>>UREG_A0_DEST_SHIFT_LEFT) +#define A0_SRC0( reg ) (((reg)&UREG_MASK)>>UREG_A0_SRC0_SHIFT_LEFT) +#define A1_SRC0( reg ) (((reg)&UREG_MASK)<<UREG_A1_SRC0_SHIFT_RIGHT) +#define A1_SRC1( reg ) (((reg)&UREG_MASK)>>UREG_A1_SRC1_SHIFT_LEFT) +#define A2_SRC1( reg ) (((reg)&UREG_MASK)<<UREG_A2_SRC1_SHIFT_RIGHT) +#define A2_SRC2( reg ) (((reg)&UREG_MASK)>>UREG_A2_SRC2_SHIFT_LEFT) + +/* These are special, and don't have swizzle/negate bits. + */ +#define T0_SAMPLER( reg ) (GET_UREG_NR(reg)<<T0_SAMPLER_NR_SHIFT) +#define T1_ADDRESS_REG( reg ) ((GET_UREG_NR(reg)<<T1_ADDRESS_REG_NR_SHIFT) | \ + (GET_UREG_TYPE(reg)<<T1_ADDRESS_REG_TYPE_SHIFT)) + + +/* Macros for translating UREG's into the various register fields used + * by the I915 programmable unit. + */ +#define UREG_A0_DEST_SHIFT_LEFT (UREG_TYPE_SHIFT - A0_DEST_TYPE_SHIFT) +#define UREG_A0_SRC0_SHIFT_LEFT (UREG_TYPE_SHIFT - A0_SRC0_TYPE_SHIFT) +#define UREG_A1_SRC0_SHIFT_RIGHT (A1_SRC0_CHANNEL_W_SHIFT - UREG_CHANNEL_W_SHIFT) +#define UREG_A1_SRC1_SHIFT_LEFT (UREG_TYPE_SHIFT - A1_SRC1_TYPE_SHIFT) +#define UREG_A2_SRC1_SHIFT_RIGHT (A2_SRC1_CHANNEL_W_SHIFT - UREG_CHANNEL_W_SHIFT) +#define UREG_A2_SRC2_SHIFT_LEFT (UREG_TYPE_SHIFT - A2_SRC2_TYPE_SHIFT) + +#define UREG_MASK 0xffffff00 +#define UREG_TYPE_NR_MASK ((REG_TYPE_MASK << UREG_TYPE_SHIFT) | \ + (REG_NR_MASK << UREG_NR_SHIFT)) + + +uint +i915_get_temp(struct i915_fp_compile *p) +{ + int bit = ffs(~p->temp_flag); + if (!bit) { + i915_program_error(p, "i915_get_temp: out of temporaries\n"); + return 0; + } + + p->temp_flag |= 1 << (bit - 1); + return bit - 1; +} + + +static void +i915_release_temp(struct i915_fp_compile *p, int reg) +{ + p->temp_flag &= ~(1 << reg); +} + + +/** + * Get unpreserved temporary, a temp whose value is not preserved between + * PS program phases. + */ +uint +i915_get_utemp(struct i915_fp_compile * p) +{ + int bit = ffs(~p->utemp_flag); + if (!bit) { + i915_program_error(p, "i915_get_utemp: out of temporaries\n"); + return 0; + } + + p->utemp_flag |= 1 << (bit - 1); + return UREG(REG_TYPE_U, (bit - 1)); +} + +void +i915_release_utemps(struct i915_fp_compile *p) +{ + p->utemp_flag = ~0x7; +} + + +uint +i915_emit_decl(struct i915_fp_compile *p, + uint type, uint nr, uint d0_flags) +{ + uint reg = UREG(type, nr); + + if (type == REG_TYPE_T) { + if (p->decl_t & (1 << nr)) + return reg; + + p->decl_t |= (1 << nr); + } + else if (type == REG_TYPE_S) { + if (p->decl_s & (1 << nr)) + return reg; + + p->decl_s |= (1 << nr); + } + else + return reg; + + *(p->decl++) = (D0_DCL | D0_DEST(reg) | d0_flags); + *(p->decl++) = D1_MBZ; + *(p->decl++) = D2_MBZ; + + p->nr_decl_insn++; + return reg; +} + +uint +i915_emit_arith(struct i915_fp_compile * p, + uint op, + uint dest, + uint mask, + uint saturate, uint src0, uint src1, uint src2) +{ + uint c[3]; + uint nr_const = 0; + + assert(GET_UREG_TYPE(dest) != REG_TYPE_CONST); + dest = UREG(GET_UREG_TYPE(dest), GET_UREG_NR(dest)); + assert(dest); + + if (GET_UREG_TYPE(src0) == REG_TYPE_CONST) + c[nr_const++] = 0; + if (GET_UREG_TYPE(src1) == REG_TYPE_CONST) + c[nr_const++] = 1; + if (GET_UREG_TYPE(src2) == REG_TYPE_CONST) + c[nr_const++] = 2; + + /* Recursively call this function to MOV additional const values + * into temporary registers. Use utemp registers for this - + * currently shouldn't be possible to run out, but keep an eye on + * this. + */ + if (nr_const > 1) { + uint s[3], first, i, old_utemp_flag; + + s[0] = src0; + s[1] = src1; + s[2] = src2; + old_utemp_flag = p->utemp_flag; + + first = GET_UREG_NR(s[c[0]]); + for (i = 1; i < nr_const; i++) { + if (GET_UREG_NR(s[c[i]]) != first) { + uint tmp = i915_get_utemp(p); + + i915_emit_arith(p, A0_MOV, tmp, A0_DEST_CHANNEL_ALL, 0, + s[c[i]], 0, 0); + s[c[i]] = tmp; + } + } + + src0 = s[0]; + src1 = s[1]; + src2 = s[2]; + p->utemp_flag = old_utemp_flag; /* restore */ + } + + *(p->csr++) = (op | A0_DEST(dest) | mask | saturate | A0_SRC0(src0)); + *(p->csr++) = (A1_SRC0(src0) | A1_SRC1(src1)); + *(p->csr++) = (A2_SRC1(src1) | A2_SRC2(src2)); + + p->nr_alu_insn++; + return dest; +} + + +/** + * Emit a texture load or texkill instruction. + * \param dest the dest i915 register + * \param destmask the dest register writemask + * \param sampler the i915 sampler register + * \param coord the i915 source texcoord operand + * \param opcode the instruction opcode + */ +uint i915_emit_texld( struct i915_fp_compile *p, + uint dest, + uint destmask, + uint sampler, + uint coord, + uint opcode ) +{ + const uint k = UREG(GET_UREG_TYPE(coord), GET_UREG_NR(coord)); + int temp = -1; + + if (coord != k) { + /* texcoord is swizzled or negated. Need to allocate a new temporary + * register (a utemp / unpreserved temp) won't do. + */ + uint tempReg; + + temp = i915_get_temp(p); /* get temp reg index */ + tempReg = UREG(REG_TYPE_R, temp); /* make i915 register */ + + i915_emit_arith( p, A0_MOV, + tempReg, A0_DEST_CHANNEL_ALL, /* dest reg, writemask */ + 0, /* saturate */ + coord, 0, 0 ); /* src0, src1, src2 */ + + /* new src texcoord is tempReg */ + coord = tempReg; + } + + /* Don't worry about saturate as we only support + */ + if (destmask != A0_DEST_CHANNEL_ALL) { + /* if not writing to XYZW... */ + uint tmp = i915_get_utemp(p); + i915_emit_texld( p, tmp, A0_DEST_CHANNEL_ALL, sampler, coord, opcode ); + i915_emit_arith( p, A0_MOV, dest, destmask, 0, tmp, 0, 0 ); + /* XXX release utemp here? */ + } + else { + assert(GET_UREG_TYPE(dest) != REG_TYPE_CONST); + assert(dest = UREG(GET_UREG_TYPE(dest), GET_UREG_NR(dest))); + + /* is the sampler coord a texcoord input reg? */ + if (GET_UREG_TYPE(coord) != REG_TYPE_T) { + p->nr_tex_indirect++; + } + + *(p->csr++) = (opcode | + T0_DEST( dest ) | + T0_SAMPLER( sampler )); + + *(p->csr++) = T1_ADDRESS_REG( coord ); + *(p->csr++) = T2_MBZ; + + p->nr_tex_insn++; + } + + if (temp >= 0) + i915_release_temp(p, temp); + + return dest; +} + + +uint +i915_emit_const1f(struct i915_fp_compile * p, float c0) +{ + struct i915_fragment_shader *ifs = p->shader; + unsigned reg, idx; + + if (c0 == 0.0) + return swizzle(UREG(REG_TYPE_R, 0), ZERO, ZERO, ZERO, ZERO); + if (c0 == 1.0) + return swizzle(UREG(REG_TYPE_R, 0), ONE, ONE, ONE, ONE); + + for (reg = 0; reg < I915_MAX_CONSTANT; reg++) { + if (ifs->constant_flags[reg] == I915_CONSTFLAG_USER) + continue; + for (idx = 0; idx < 4; idx++) { + if (!(ifs->constant_flags[reg] & (1 << idx)) || + ifs->constants[reg][idx] == c0) { + ifs->constants[reg][idx] = c0; + ifs->constant_flags[reg] |= 1 << idx; + if (reg + 1 > ifs->num_constants) + ifs->num_constants = reg + 1; + return swizzle(UREG(REG_TYPE_CONST, reg), idx, ZERO, ZERO, ONE); + } + } + } + + i915_program_error(p, "i915_emit_const1f: out of constants\n"); + return 0; +} + +uint +i915_emit_const2f(struct i915_fp_compile * p, float c0, float c1) +{ + struct i915_fragment_shader *ifs = p->shader; + unsigned reg, idx; + + if (c0 == 0.0) + return swizzle(i915_emit_const1f(p, c1), ZERO, X, Z, W); + if (c0 == 1.0) + return swizzle(i915_emit_const1f(p, c1), ONE, X, Z, W); + + if (c1 == 0.0) + return swizzle(i915_emit_const1f(p, c0), X, ZERO, Z, W); + if (c1 == 1.0) + return swizzle(i915_emit_const1f(p, c0), X, ONE, Z, W); + + for (reg = 0; reg < I915_MAX_CONSTANT; reg++) { + if (ifs->constant_flags[reg] == 0xf || + ifs->constant_flags[reg] == I915_CONSTFLAG_USER) + continue; + for (idx = 0; idx < 3; idx++) { + if (!(ifs->constant_flags[reg] & (3 << idx))) { + ifs->constants[reg][idx + 0] = c0; + ifs->constants[reg][idx + 1] = c1; + ifs->constant_flags[reg] |= 3 << idx; + if (reg + 1 > ifs->num_constants) + ifs->num_constants = reg + 1; + return swizzle(UREG(REG_TYPE_CONST, reg), idx, idx + 1, ZERO, ONE); + } + } + } + + i915_program_error(p, "i915_emit_const2f: out of constants\n"); + return 0; +} + + + +uint +i915_emit_const4f(struct i915_fp_compile * p, + float c0, float c1, float c2, float c3) +{ + struct i915_fragment_shader *ifs = p->shader; + unsigned reg; + + for (reg = 0; reg < I915_MAX_CONSTANT; reg++) { + if (ifs->constant_flags[reg] == 0xf && + ifs->constants[reg][0] == c0 && + ifs->constants[reg][1] == c1 && + ifs->constants[reg][2] == c2 && + ifs->constants[reg][3] == c3) { + return UREG(REG_TYPE_CONST, reg); + } + else if (ifs->constant_flags[reg] == 0) { + + ifs->constants[reg][0] = c0; + ifs->constants[reg][1] = c1; + ifs->constants[reg][2] = c2; + ifs->constants[reg][3] = c3; + ifs->constant_flags[reg] = 0xf; + if (reg + 1 > ifs->num_constants) + ifs->num_constants = reg + 1; + return UREG(REG_TYPE_CONST, reg); + } + } + + i915_program_error(p, "i915_emit_const4f: out of constants\n"); + return 0; +} + + +uint +i915_emit_const4fv(struct i915_fp_compile * p, const float * c) +{ + return i915_emit_const4f(p, c[0], c[1], c[2], c[3]); +} |