diff options
Diffstat (limited to 'src/mesa/drivers/dri/r600/r600_fragprog_swizzle.c')
| -rw-r--r-- | src/mesa/drivers/dri/r600/r600_fragprog_swizzle.c | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/src/mesa/drivers/dri/r600/r600_fragprog_swizzle.c b/src/mesa/drivers/dri/r600/r600_fragprog_swizzle.c deleted file mode 100644 index 36136cc849..0000000000 --- a/src/mesa/drivers/dri/r600/r600_fragprog_swizzle.c +++ /dev/null @@ -1,227 +0,0 @@ -/* - * Copyright (C) 2008 Nicolai Haehnle. - * - * 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, sublicense, 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 NONINFRINGEMENT. - * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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. - * - */ - -/** - * @file - * Utilities to deal with the somewhat odd restriction on R600 fragment - * program swizzles. - */ - -#include "r600_fragprog_swizzle.h" - -#include "r600_reg.h" -#include "radeon_nqssadce.h" - -#define MAKE_SWZ3(x, y, z) (MAKE_SWIZZLE4(SWIZZLE_##x, SWIZZLE_##y, SWIZZLE_##z, SWIZZLE_ZERO)) - -struct swizzle_data { - GLuint hash; /**< swizzle value this matches */ - GLuint base; /**< base value for hw swizzle */ - GLuint stride; /**< difference in base between arg0/1/2 */ -}; - -static const struct swizzle_data native_swizzles[] = { - {MAKE_SWZ3(X, Y, Z), R600_ALU_ARGC_SRC0C_XYZ, 4}, - {MAKE_SWZ3(X, X, X), R600_ALU_ARGC_SRC0C_XXX, 4}, - {MAKE_SWZ3(Y, Y, Y), R600_ALU_ARGC_SRC0C_YYY, 4}, - {MAKE_SWZ3(Z, Z, Z), R600_ALU_ARGC_SRC0C_ZZZ, 4}, - {MAKE_SWZ3(W, W, W), R600_ALU_ARGC_SRC0A, 1}, - {MAKE_SWZ3(Y, Z, X), R600_ALU_ARGC_SRC0C_YZX, 1}, - {MAKE_SWZ3(Z, X, Y), R600_ALU_ARGC_SRC0C_ZXY, 1}, - {MAKE_SWZ3(W, Z, Y), R600_ALU_ARGC_SRC0CA_WZY, 1}, - {MAKE_SWZ3(ONE, ONE, ONE), R600_ALU_ARGC_ONE, 0}, - {MAKE_SWZ3(ZERO, ZERO, ZERO), R600_ALU_ARGC_ZERO, 0} -}; - -static const int num_native_swizzles = sizeof(native_swizzles)/sizeof(native_swizzles[0]); - - -/** - * Find a native RGB swizzle that matches the given swizzle. - * Returns 0 if none found. - */ -static const struct swizzle_data* lookup_native_swizzle(GLuint swizzle) -{ - int i, comp; - - for(i = 0; i < num_native_swizzles; ++i) { - const struct swizzle_data* sd = &native_swizzles[i]; - for(comp = 0; comp < 3; ++comp) { - GLuint swz = GET_SWZ(swizzle, comp); - if (swz == SWIZZLE_NIL) - continue; - if (swz != GET_SWZ(sd->hash, comp)) - break; - } - if (comp == 3) - return sd; - } - - return 0; -} - - -/** - * Check whether the given instruction supports the swizzle and negate - * combinations in the given source register. - */ -GLboolean r600FPIsNativeSwizzle(GLuint opcode, struct prog_src_register reg) -{ - if (reg.Abs) - reg.NegateBase = 0; - - if (opcode == OPCODE_KIL || - opcode == OPCODE_TEX || - opcode == OPCODE_TXB || - opcode == OPCODE_TXP) { - int j; - - if (reg.Abs || reg.NegateBase != (15*reg.NegateAbs)) - return GL_FALSE; - - for(j = 0; j < 4; ++j) { - GLuint swz = GET_SWZ(reg.Swizzle, j); - if (swz == SWIZZLE_NIL) - continue; - if (swz != j) - return GL_FALSE; - } - - return GL_TRUE; - } - - GLuint relevant = 0; - int j; - - for(j = 0; j < 3; ++j) - if (GET_SWZ(reg.Swizzle, j) != SWIZZLE_NIL) - relevant |= 1 << j; - - if ((reg.NegateBase & relevant) && (reg.NegateBase & relevant) != relevant) - return GL_FALSE; - - if (!lookup_native_swizzle(reg.Swizzle)) - return GL_FALSE; - - return GL_TRUE; -} - - -/** - * Generate MOV dst, src using only native swizzles. - */ -void r600FPBuildSwizzle(struct nqssadce_state *s, struct prog_dst_register dst, struct prog_src_register src) -{ - if (src.Abs) - src.NegateBase = 0; - - while(dst.WriteMask) { - const struct swizzle_data *best_swizzle = 0; - GLuint best_matchcount = 0; - GLuint best_matchmask = 0; - GLboolean rgbnegate; - int i, comp; - - for(i = 0; i < num_native_swizzles; ++i) { - const struct swizzle_data *sd = &native_swizzles[i]; - GLuint matchcount = 0; - GLuint matchmask = 0; - for(comp = 0; comp < 3; ++comp) { - if (!GET_BIT(dst.WriteMask, comp)) - continue; - GLuint swz = GET_SWZ(src.Swizzle, comp); - if (swz == SWIZZLE_NIL) - continue; - if (swz == GET_SWZ(sd->hash, comp)) { - matchcount++; - matchmask |= 1 << comp; - } - } - if (matchcount > best_matchcount) { - best_swizzle = sd; - best_matchcount = matchcount; - best_matchmask = matchmask; - if (matchmask == (dst.WriteMask & WRITEMASK_XYZ)) - break; - } - } - - if ((src.NegateBase & best_matchmask) != 0) { - best_matchmask &= src.NegateBase; - rgbnegate = !src.NegateAbs; - } else { - rgbnegate = src.NegateAbs; - } - - struct prog_instruction *inst; - - _mesa_insert_instructions(s->Program, s->IP, 1); - inst = s->Program->Instructions + s->IP++; - inst->Opcode = OPCODE_MOV; - inst->DstReg = dst; - inst->DstReg.WriteMask &= (best_matchmask | WRITEMASK_W); - inst->SrcReg[0] = src; - /* Note: We rely on NqSSA/DCE to set unused swizzle components to NIL */ - - dst.WriteMask &= ~inst->DstReg.WriteMask; - } -} - - -/** - * Translate an RGB (XYZ) swizzle into the hardware code for the given - * instruction source. - */ -GLuint r600FPTranslateRGBSwizzle(GLuint src, GLuint swizzle) -{ - const struct swizzle_data* sd = lookup_native_swizzle(swizzle); - - if (!sd) { - _mesa_printf("Not a native swizzle: %08x\n", swizzle); - return 0; - } - - return sd->base + src*sd->stride; -} - - -/** - * Translate an Alpha (W) swizzle into the hardware code for the given - * instruction source. - */ -GLuint r600FPTranslateAlphaSwizzle(GLuint src, GLuint swizzle) -{ - if (swizzle < 3) - return swizzle + 3*src; - - switch(swizzle) { - case SWIZZLE_W: return R600_ALU_ARGA_SRC0A + src; - case SWIZZLE_ONE: return R600_ALU_ARGA_ONE; - case SWIZZLE_ZERO: return R600_ALU_ARGA_ZERO; - default: return R600_ALU_ARGA_ONE; - } -} |