diff options
Diffstat (limited to 'src/gallium/aux/tgsi/util/tgsi_parse.c')
-rw-r--r-- | src/gallium/aux/tgsi/util/tgsi_parse.c | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/src/gallium/aux/tgsi/util/tgsi_parse.c b/src/gallium/aux/tgsi/util/tgsi_parse.c new file mode 100644 index 0000000..bf6b89c --- /dev/null +++ b/src/gallium/aux/tgsi/util/tgsi_parse.c @@ -0,0 +1,319 @@ +/************************************************************************** + * + * Copyright 2007 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 "pipe/p_debug.h" +#include "pipe/p_util.h" +#include "pipe/p_shader_tokens.h" +#include "tgsi_parse.h" +#include "tgsi_build.h" + +void +tgsi_full_token_init( + union tgsi_full_token *full_token ) +{ + full_token->Token.Type = TGSI_TOKEN_TYPE_DECLARATION; +} + +void +tgsi_full_token_free( + union tgsi_full_token *full_token ) +{ + if( full_token->Token.Type == TGSI_TOKEN_TYPE_IMMEDIATE ) { + FREE( full_token->FullImmediate.u.Pointer ); + } +} + +unsigned +tgsi_parse_init( + struct tgsi_parse_context *ctx, + const struct tgsi_token *tokens ) +{ + ctx->FullVersion.Version = *(struct tgsi_version *) &tokens[0]; + if( ctx->FullVersion.Version.MajorVersion > 1 ) { + return TGSI_PARSE_ERROR; + } + + ctx->FullHeader.Header = *(struct tgsi_header *) &tokens[1]; + if( ctx->FullHeader.Header.HeaderSize >= 2 ) { + ctx->FullHeader.Processor = *(struct tgsi_processor *) &tokens[2]; + } + else { + ctx->FullHeader.Processor = tgsi_default_processor(); + } + + ctx->Tokens = tokens; + ctx->Position = 1 + ctx->FullHeader.Header.HeaderSize; + + tgsi_full_token_init( &ctx->FullToken ); + + return TGSI_PARSE_OK; +} + +void +tgsi_parse_free( + struct tgsi_parse_context *ctx ) +{ + tgsi_full_token_free( &ctx->FullToken ); +} + +boolean +tgsi_parse_end_of_tokens( + struct tgsi_parse_context *ctx ) +{ + return ctx->Position >= + 1 + ctx->FullHeader.Header.HeaderSize + ctx->FullHeader.Header.BodySize; +} + +static void +next_token( + struct tgsi_parse_context *ctx, + void *token ) +{ + assert( !tgsi_parse_end_of_tokens( ctx ) ); + + *(struct tgsi_token *) token = ctx->Tokens[ctx->Position++]; +} + +void +tgsi_parse_token( + struct tgsi_parse_context *ctx ) +{ + struct tgsi_token token; + unsigned i; + + tgsi_full_token_free( &ctx->FullToken ); + tgsi_full_token_init( &ctx->FullToken ); + + next_token( ctx, &token ); + + switch( token.Type ) { + case TGSI_TOKEN_TYPE_DECLARATION: + { + struct tgsi_full_declaration *decl = &ctx->FullToken.FullDeclaration; + + *decl = tgsi_default_full_declaration(); + decl->Declaration = *(struct tgsi_declaration *) &token; + + switch( decl->Declaration.Type ) { + case TGSI_DECLARE_RANGE: + next_token( ctx, &decl->u.DeclarationRange ); + break; + + case TGSI_DECLARE_MASK: + next_token( ctx, &decl->u.DeclarationMask ); + break; + + default: + assert (0); + } + + if( decl->Declaration.Interpolate ) { + next_token( ctx, &decl->Interpolation ); + } + + if( decl->Declaration.Semantic ) { + next_token( ctx, &decl->Semantic ); + } + + break; + } + + case TGSI_TOKEN_TYPE_IMMEDIATE: + { + struct tgsi_full_immediate *imm = &ctx->FullToken.FullImmediate; + + *imm = tgsi_default_full_immediate(); + imm->Immediate = *(struct tgsi_immediate *) &token; + + assert( !imm->Immediate.Extended ); + + switch (imm->Immediate.DataType) { + case TGSI_IMM_FLOAT32: + imm->u.Pointer = MALLOC( + sizeof( struct tgsi_immediate_float32 ) * (imm->Immediate.Size - 1) ); + for( i = 0; i < imm->Immediate.Size - 1; i++ ) { + next_token( ctx, &imm->u.ImmediateFloat32[i] ); + } + break; + + default: + assert( 0 ); + } + + break; + } + + case TGSI_TOKEN_TYPE_INSTRUCTION: + { + struct tgsi_full_instruction *inst = &ctx->FullToken.FullInstruction; + unsigned extended; + + *inst = tgsi_default_full_instruction(); + inst->Instruction = *(struct tgsi_instruction *) &token; + + extended = inst->Instruction.Extended; + + while( extended ) { + struct tgsi_src_register_ext token; + + next_token( ctx, &token ); + + switch( token.Type ) { + case TGSI_INSTRUCTION_EXT_TYPE_NV: + inst->InstructionExtNv = + *(struct tgsi_instruction_ext_nv *) &token; + break; + + case TGSI_INSTRUCTION_EXT_TYPE_LABEL: + inst->InstructionExtLabel = + *(struct tgsi_instruction_ext_label *) &token; + break; + + case TGSI_INSTRUCTION_EXT_TYPE_TEXTURE: + inst->InstructionExtTexture = + *(struct tgsi_instruction_ext_texture *) &token; + break; + + default: + assert( 0 ); + } + + extended = token.Extended; + } + + assert( inst->Instruction.NumDstRegs <= TGSI_FULL_MAX_DST_REGISTERS ); + + for( i = 0; i < inst->Instruction.NumDstRegs; i++ ) { + unsigned extended; + + next_token( ctx, &inst->FullDstRegisters[i].DstRegister ); + + /* + * No support for indirect or multi-dimensional addressing. + */ + assert( !inst->FullDstRegisters[i].DstRegister.Indirect ); + assert( !inst->FullDstRegisters[i].DstRegister.Dimension ); + + extended = inst->FullDstRegisters[i].DstRegister.Extended; + + while( extended ) { + struct tgsi_src_register_ext token; + + next_token( ctx, &token ); + + switch( token.Type ) { + case TGSI_DST_REGISTER_EXT_TYPE_CONDCODE: + inst->FullDstRegisters[i].DstRegisterExtConcode = + *(struct tgsi_dst_register_ext_concode *) &token; + break; + + case TGSI_DST_REGISTER_EXT_TYPE_MODULATE: + inst->FullDstRegisters[i].DstRegisterExtModulate = + *(struct tgsi_dst_register_ext_modulate *) &token; + break; + + default: + assert( 0 ); + } + + extended = token.Extended; + } + } + + assert( inst->Instruction.NumSrcRegs <= TGSI_FULL_MAX_SRC_REGISTERS ); + + for( i = 0; i < inst->Instruction.NumSrcRegs; i++ ) { + unsigned extended; + + next_token( ctx, &inst->FullSrcRegisters[i].SrcRegister ); + + extended = inst->FullSrcRegisters[i].SrcRegister.Extended; + + while( extended ) { + struct tgsi_src_register_ext token; + + next_token( ctx, &token ); + + switch( token.Type ) { + case TGSI_SRC_REGISTER_EXT_TYPE_SWZ: + inst->FullSrcRegisters[i].SrcRegisterExtSwz = + *(struct tgsi_src_register_ext_swz *) &token; + break; + + case TGSI_SRC_REGISTER_EXT_TYPE_MOD: + inst->FullSrcRegisters[i].SrcRegisterExtMod = + *(struct tgsi_src_register_ext_mod *) &token; + break; + + default: + assert( 0 ); + } + + extended = token.Extended; + } + + if( inst->FullSrcRegisters[i].SrcRegister.Indirect ) { + next_token( ctx, &inst->FullSrcRegisters[i].SrcRegisterInd ); + + /* + * No support for indirect or multi-dimensional addressing. + */ + assert( !inst->FullSrcRegisters[i].SrcRegisterInd.Indirect ); + assert( !inst->FullSrcRegisters[i].SrcRegisterInd.Dimension ); + assert( !inst->FullSrcRegisters[i].SrcRegisterInd.Extended ); + } + + if( inst->FullSrcRegisters[i].SrcRegister.Dimension ) { + next_token( ctx, &inst->FullSrcRegisters[i].SrcRegisterDim ); + + /* + * No support for multi-dimensional addressing. + */ + assert( !inst->FullSrcRegisters[i].SrcRegisterDim.Dimension ); + assert( !inst->FullSrcRegisters[i].SrcRegisterDim.Extended ); + + if( inst->FullSrcRegisters[i].SrcRegisterDim.Indirect ) { + next_token( ctx, &inst->FullSrcRegisters[i].SrcRegisterDimInd ); + + /* + * No support for indirect or multi-dimensional addressing. + */ + assert( !inst->FullSrcRegisters[i].SrcRegisterInd.Indirect ); + assert( !inst->FullSrcRegisters[i].SrcRegisterInd.Dimension ); + assert( !inst->FullSrcRegisters[i].SrcRegisterInd.Extended ); + } + } + } + + break; + } + + default: + assert( 0 ); + } +} + |