diff options
Diffstat (limited to 'lib/mesa/src/gallium/auxiliary/tgsi/tgsi_emulate.c')
| -rw-r--r-- | lib/mesa/src/gallium/auxiliary/tgsi/tgsi_emulate.c | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/lib/mesa/src/gallium/auxiliary/tgsi/tgsi_emulate.c b/lib/mesa/src/gallium/auxiliary/tgsi/tgsi_emulate.c deleted file mode 100644 index 59d2e4c95..000000000 --- a/lib/mesa/src/gallium/auxiliary/tgsi/tgsi_emulate.c +++ /dev/null @@ -1,169 +0,0 @@ -/* - * Copyright (C) 2015 Advanced Micro Devices, Inc. - * 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 AUTHORS OR COPYRIGHT HOLDERS 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 "tgsi/tgsi_transform.h" -#include "tgsi/tgsi_scan.h" -#include "tgsi/tgsi_dump.h" -#include "util/u_debug.h" - -#include "tgsi_emulate.h" - -struct tgsi_emulation_context { - struct tgsi_transform_context base; - struct tgsi_shader_info info; - unsigned flags; - bool first_instruction_emitted; -}; - -static inline struct tgsi_emulation_context * -tgsi_emulation_context(struct tgsi_transform_context *tctx) -{ - return (struct tgsi_emulation_context *)tctx; -} - -static void -transform_decl(struct tgsi_transform_context *tctx, - struct tgsi_full_declaration *decl) -{ - struct tgsi_emulation_context *ctx = tgsi_emulation_context(tctx); - - if (ctx->flags & TGSI_EMU_FORCE_PERSAMPLE_INTERP && - decl->Declaration.File == TGSI_FILE_INPUT) { - assert(decl->Declaration.Interpolate); - decl->Interp.Location = TGSI_INTERPOLATE_LOC_SAMPLE; - } - - tctx->emit_declaration(tctx, decl); -} - -static void -passthrough_edgeflag(struct tgsi_transform_context *tctx) -{ - struct tgsi_emulation_context *ctx = tgsi_emulation_context(tctx); - struct tgsi_full_declaration decl; - struct tgsi_full_instruction new_inst; - - /* Input */ - decl = tgsi_default_full_declaration(); - decl.Declaration.File = TGSI_FILE_INPUT; - decl.Range.First = decl.Range.Last = ctx->info.num_inputs; - tctx->emit_declaration(tctx, &decl); - - /* Output */ - decl = tgsi_default_full_declaration(); - decl.Declaration.File = TGSI_FILE_OUTPUT; - decl.Declaration.Semantic = true; - decl.Range.First = decl.Range.Last = ctx->info.num_outputs; - decl.Semantic.Name = TGSI_SEMANTIC_EDGEFLAG; - decl.Semantic.Index = 0; - tctx->emit_declaration(tctx, &decl); - - /* MOV */ - new_inst = tgsi_default_full_instruction(); - new_inst.Instruction.Opcode = TGSI_OPCODE_MOV; - - new_inst.Instruction.NumDstRegs = 1; - new_inst.Dst[0].Register.File = TGSI_FILE_OUTPUT; - new_inst.Dst[0].Register.Index = ctx->info.num_outputs; - new_inst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_XYZW; - - new_inst.Instruction.NumSrcRegs = 1; - new_inst.Src[0].Register.File = TGSI_FILE_INPUT; - new_inst.Src[0].Register.Index = ctx->info.num_inputs; - new_inst.Src[0].Register.SwizzleX = TGSI_SWIZZLE_X; - new_inst.Src[0].Register.SwizzleY = TGSI_SWIZZLE_X; - new_inst.Src[0].Register.SwizzleZ = TGSI_SWIZZLE_X; - new_inst.Src[0].Register.SwizzleW = TGSI_SWIZZLE_X; - - tctx->emit_instruction(tctx, &new_inst); -} - -static void -transform_instr(struct tgsi_transform_context *tctx, - struct tgsi_full_instruction *inst) -{ - struct tgsi_emulation_context *ctx = tgsi_emulation_context(tctx); - - /* Pass through edgeflags. */ - if (!ctx->first_instruction_emitted) { - ctx->first_instruction_emitted = true; - - if (ctx->flags & TGSI_EMU_PASSTHROUGH_EDGEFLAG) - passthrough_edgeflag(tctx); - } - - /* Clamp color outputs. */ - if (ctx->flags & TGSI_EMU_CLAMP_COLOR_OUTPUTS) { - int i; - for (i = 0; i < inst->Instruction.NumDstRegs; i++) { - unsigned semantic; - - if (inst->Dst[i].Register.File != TGSI_FILE_OUTPUT || - inst->Dst[i].Register.Indirect) - continue; - - semantic = - ctx->info.output_semantic_name[inst->Dst[i].Register.Index]; - - if (semantic == TGSI_SEMANTIC_COLOR || - semantic == TGSI_SEMANTIC_BCOLOR) - inst->Instruction.Saturate = true; - } - } - - tctx->emit_instruction(tctx, inst); -} - -const struct tgsi_token * -tgsi_emulate(const struct tgsi_token *tokens, unsigned flags) -{ - struct tgsi_emulation_context ctx; - struct tgsi_token *newtoks; - int newlen; - - if (!(flags & (TGSI_EMU_CLAMP_COLOR_OUTPUTS | - TGSI_EMU_PASSTHROUGH_EDGEFLAG | - TGSI_EMU_FORCE_PERSAMPLE_INTERP))) - return NULL; - - memset(&ctx, 0, sizeof(ctx)); - ctx.flags = flags; - tgsi_scan_shader(tokens, &ctx.info); - - if (flags & TGSI_EMU_FORCE_PERSAMPLE_INTERP) - ctx.base.transform_declaration = transform_decl; - - if (flags & (TGSI_EMU_CLAMP_COLOR_OUTPUTS | - TGSI_EMU_PASSTHROUGH_EDGEFLAG)) - ctx.base.transform_instruction = transform_instr; - - newlen = tgsi_num_tokens(tokens) + 20; - newtoks = tgsi_alloc_tokens(newlen); - if (!newtoks) - return NULL; - - tgsi_transform_shader(tokens, newtoks, newlen, &ctx.base); - return newtoks; -} |