mirror of
https://gitlab.winehq.org/wine/vkd3d.git
synced 2024-11-21 16:46:41 -08:00
475 lines
18 KiB
Plaintext
475 lines
18 KiB
Plaintext
/*
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* HLSL parser
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*
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* Copyright 2008 Stefan Dösinger
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* Copyright 2012 Matteo Bruni for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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%{
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#define YY_NO_UNISTD_H
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#include "hlsl.h"
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#include "hlsl.tab.h"
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#define YYSTYPE HLSL_YYSTYPE
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#define YYLTYPE HLSL_YYLTYPE
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static void update_location(struct hlsl_ctx *ctx, YYLTYPE *loc);
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static void apply_escape_sequences(char *str);
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#define YY_USER_ACTION update_location(yyget_extra(yyscanner), yyget_lloc(yyscanner));
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%}
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%option bison-bridge
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%option bison-locations
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%option extra-type="struct hlsl_ctx *"
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%option never-interactive
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%option nodefault
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%option noinput
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%option nounput
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%option noyywrap
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%option prefix="hlsl_yy"
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%option reentrant
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%x pp pp_line pp_pragma pp_ignore
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RESERVED1 auto|catch|char|class|const_cast|delete|dynamic_cast|enum
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RESERVED2 explicit|friend|goto|long|mutable|new|operator|private|protected|public
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RESERVED3 reinterpret_cast|short|signed|sizeof|static_cast|template|this|throw|try
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RESERVED4 typename|union|using|virtual
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WS [ \t]
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NEWLINE (\n)|(\r\n)
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STRING \"([^\"\\]|\\.)*\"
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IDENTIFIER [A-Za-z_][A-Za-z0-9_]*
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ANY (.)
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%%
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{RESERVED1} |
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{RESERVED2} |
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{RESERVED3} |
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{RESERVED4} {
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struct hlsl_ctx *ctx = yyget_extra(yyscanner);
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hlsl_error(ctx, yylloc, VKD3D_SHADER_ERROR_HLSL_INVALID_SYNTAX,
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"Reserved keyword \"%s\" used.", yytext);
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}
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BlendState {return KW_BLENDSTATE; }
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break {return KW_BREAK; }
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Buffer {return KW_BUFFER; }
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case {return KW_CASE; }
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cbuffer {return KW_CBUFFER; }
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centroid {return KW_CENTROID; }
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column_major {return KW_COLUMN_MAJOR; }
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ComputeShader {return KW_COMPUTESHADER; }
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compile {return KW_COMPILE; }
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CompileShader {return KW_COMPILESHADER; }
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const {return KW_CONST; }
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ConstructGSWithSO {return KW_CONSTRUCTGSWITHSO; }
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continue {return KW_CONTINUE; }
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DepthStencilState {return KW_DEPTHSTENCILSTATE; }
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DepthStencilView {return KW_DEPTHSTENCILVIEW; }
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default {return KW_DEFAULT; }
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discard {return KW_DISCARD; }
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DomainShader {return KW_DOMAINSHADER; }
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do {return KW_DO; }
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else {return KW_ELSE; }
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export {return KW_EXPORT; }
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extern {return KW_EXTERN; }
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false {return KW_FALSE; }
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for {return KW_FOR; }
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fxgroup {return KW_FXGROUP; }
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GeometryShader {return KW_GEOMETRYSHADER; }
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groupshared {return KW_GROUPSHARED; }
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HullShader {return KW_HULLSHADER; }
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if {return KW_IF; }
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in {return KW_IN; }
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inline {return KW_INLINE; }
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inout {return KW_INOUT; }
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linear {return KW_LINEAR; }
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matrix {return KW_MATRIX; }
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namespace {return KW_NAMESPACE; }
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nointerpolation {return KW_NOINTERPOLATION; }
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noperspective {return KW_NOPERSPECTIVE; }
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NULL {return KW_NULL; }
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out {return KW_OUT; }
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packoffset {return KW_PACKOFFSET; }
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pass {return KW_PASS; }
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PixelShader {return KW_PIXELSHADER; }
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pixelshader {return KW_PIXELSHADER; }
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RasterizerOrderedBuffer {return KW_RASTERIZERORDEREDBUFFER; }
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RasterizerOrderedStructuredBuffer {return KW_RASTERIZERORDEREDSTRUCTUREDBUFFER; }
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RasterizerOrderedTexture1D {return KW_RASTERIZERORDEREDTEXTURE1D; }
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RasterizerOrderedTexture1DArray {return KW_RASTERIZERORDEREDTEXTURE1DARRAY; }
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RasterizerOrderedTexture2D {return KW_RASTERIZERORDEREDTEXTURE2D; }
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RasterizerOrderedTexture2DArray {return KW_RASTERIZERORDEREDTEXTURE2DARRAY; }
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RasterizerOrderedTexture3D {return KW_RASTERIZERORDEREDTEXTURE3D; }
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RasterizerState {return KW_RASTERIZERSTATE; }
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register {return KW_REGISTER; }
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RenderTargetView {return KW_RENDERTARGETVIEW; }
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return {return KW_RETURN; }
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row_major {return KW_ROW_MAJOR; }
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RWBuffer {return KW_RWBUFFER; }
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RWByteAddressBuffer {return KW_RWBYTEADDRESSBUFFER; }
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RWStructuredBuffer {return KW_RWSTRUCTUREDBUFFER; }
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RWTexture1D {return KW_RWTEXTURE1D; }
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RWTexture1DArray {return KW_RWTEXTURE1DARRAY; }
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RWTexture2D {return KW_RWTEXTURE2D; }
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RWTexture2DArray {return KW_RWTEXTURE2DARRAY; }
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RWTexture3D {return KW_RWTEXTURE3D; }
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sampler {return KW_SAMPLER; }
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sampler1D {return KW_SAMPLER1D; }
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sampler2D {return KW_SAMPLER2D; }
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sampler3D {return KW_SAMPLER3D; }
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SamplerComparisonState {return KW_SAMPLERCOMPARISONSTATE;}
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samplerCUBE {return KW_SAMPLERCUBE; }
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SamplerState {return KW_SAMPLER; }
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sampler_state {return KW_SAMPLER_STATE; }
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shared {return KW_SHARED; }
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snorm {return KW_SNORM; }
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stateblock {return KW_STATEBLOCK; }
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stateblock_state {return KW_STATEBLOCK_STATE; }
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static {return KW_STATIC; }
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string {return KW_STRING; }
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String {return KW_STRING; }
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struct {return KW_STRUCT; }
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switch {return KW_SWITCH; }
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tbuffer {return KW_TBUFFER; }
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(?i:technique) {return KW_TECHNIQUE; }
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technique10 {return KW_TECHNIQUE10; }
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technique11 {return KW_TECHNIQUE11; }
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texture {return KW_TEXTURE; }
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Texture1D {return KW_TEXTURE1D; }
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texture1D {return KW_TEXTURE1D; }
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Texture1DArray {return KW_TEXTURE1DARRAY; }
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Texture2D {return KW_TEXTURE2D; }
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texture2D {return KW_TEXTURE2D; }
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Texture2DArray {return KW_TEXTURE2DARRAY; }
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Texture2DMS {return KW_TEXTURE2DMS; }
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Texture2DMSArray {return KW_TEXTURE2DMSARRAY; }
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Texture3D {return KW_TEXTURE3D; }
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texture3D {return KW_TEXTURE3D; }
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TextureCube {return KW_TEXTURECUBE; }
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textureCUBE {return KW_TEXTURECUBE; }
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TextureCubeArray {return KW_TEXTURECUBEARRAY; }
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true {return KW_TRUE; }
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typedef {return KW_TYPEDEF; }
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unsigned {return KW_UNSIGNED; }
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uniform {return KW_UNIFORM; }
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unorm {return KW_UNORM; }
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vector {return KW_VECTOR; }
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VertexShader {return KW_VERTEXSHADER; }
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vertexshader {return KW_VERTEXSHADER; }
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void {return KW_VOID; }
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volatile {return KW_VOLATILE; }
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while {return KW_WHILE; }
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\+\+ {return OP_INC; }
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\-\- {return OP_DEC; }
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&& {return OP_AND; }
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\|\| {return OP_OR; }
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== {return OP_EQ; }
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\<\< {return OP_LEFTSHIFT; }
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\<\<= {return OP_LEFTSHIFTASSIGN; }
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\>\> {return OP_RIGHTSHIFT; }
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\>\>= {return OP_RIGHTSHIFTASSIGN; }
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\<= {return OP_LE; }
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\>= {return OP_GE; }
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!= {return OP_NE; }
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\+= {return OP_ADDASSIGN; }
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\-= {return OP_SUBASSIGN; }
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\*= {return OP_MULASSIGN; }
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\/= {return OP_DIVASSIGN; }
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%= {return OP_MODASSIGN; }
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&= {return OP_ANDASSIGN; }
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\|= {return OP_ORASSIGN; }
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\^= {return OP_XORASSIGN; }
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{IDENTIFIER} {
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struct hlsl_ctx *ctx = yyget_extra(yyscanner);
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yylval->name = hlsl_strdup(ctx, yytext);
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if (hlsl_version_ge(ctx, 5, 1) && !strcmp(yytext, "ConstantBuffer"))
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return KW_CONSTANTBUFFER;
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else if (hlsl_get_var(ctx->cur_scope, yytext) || hlsl_get_function(ctx, yytext))
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return VAR_IDENTIFIER;
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else if (hlsl_get_type(ctx->cur_scope, yytext, true, true))
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return TYPE_IDENTIFIER;
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else
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return NEW_IDENTIFIER;
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}
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{STRING} {
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struct hlsl_ctx *ctx = yyget_extra(yyscanner);
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char *string = hlsl_strdup(ctx, yytext + 1);
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string[strlen(string) - 1] = 0;
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apply_escape_sequences(string);
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yylval->name = string;
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return STRING;
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}
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[0-9]*\.[0-9]+([eE][+-]?[0-9]+)?[h|H|f|F]? {
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yylval->floatval = atof(yytext);
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return C_FLOAT;
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}
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[0-9]+\.([eE][+-]?[0-9]+)?[h|H|f|F]? {
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yylval->floatval = atof(yytext);
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return C_FLOAT;
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}
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[0-9]+[eE][+-]?[0-9]+[h|H|f|F]? {
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yylval->floatval = atof(yytext);
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return C_FLOAT;
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}
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0x[0-9a-fA-F]+[lL]? {
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yylval->intval = vkd3d_parse_integer(yytext);
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return C_INTEGER;
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}
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0[0-7]+[lL]? {
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yylval->intval = vkd3d_parse_integer(yytext);
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return C_INTEGER;
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}
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[0-9]+[lL]? {
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yylval->intval = vkd3d_parse_integer(yytext);
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return C_INTEGER;
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}
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0x[0-9a-fA-F]+([uU]|[uU][lL]|[lL][uU]) {
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yylval->intval = vkd3d_parse_integer(yytext);
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return C_UNSIGNED;
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}
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0[0-7]+([uU]|[uU][lL]|[lL][uU]) {
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yylval->intval = vkd3d_parse_integer(yytext);
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return C_UNSIGNED;
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}
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[0-9]+([uU]|[uU][lL]|[lL][uU]) {
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yylval->intval = vkd3d_parse_integer(yytext);
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return C_UNSIGNED;
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}
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{WS}+ {}
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{NEWLINE} {
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struct hlsl_ctx *ctx = yyget_extra(yyscanner);
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++ctx->location.line;
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ctx->location.column = 1;
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}
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^# {
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BEGIN(pp);
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}
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<pp>pragma{WS}+ {
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BEGIN(pp_pragma);
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}
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<pp_pragma>pack_matrix{WS}*\({WS}*row_major{WS}*\) {
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struct hlsl_ctx *ctx = yyget_extra(yyscanner);
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TRACE("#pragma setting row_major mode.\n");
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ctx->matrix_majority = HLSL_MODIFIER_ROW_MAJOR;
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BEGIN(pp_ignore);
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}
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<pp_pragma>pack_matrix{WS}*\({WS}*column_major{WS}*\) {
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struct hlsl_ctx *ctx = yyget_extra(yyscanner);
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TRACE("#pragma setting column_major mode.\n");
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ctx->matrix_majority = HLSL_MODIFIER_COLUMN_MAJOR;
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BEGIN(pp_ignore);
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}
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<pp_pragma>{NEWLINE} {
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struct hlsl_ctx *ctx = yyget_extra(yyscanner);
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FIXME("Unsupported preprocessor #pragma directive at line %u.\n", ctx->location.line);
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BEGIN(INITIAL);
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}
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<pp_pragma>{ANY} {}
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<pp>[0-9]+ {
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BEGIN(pp_line);
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yylval->intval = (atoi(yytext));
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return PRE_LINE;
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}
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<pp_line>{STRING} {
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struct hlsl_ctx *ctx = yyget_extra(yyscanner);
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char *string = hlsl_strdup(ctx, yytext + 1);
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BEGIN(pp_ignore);
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string[strlen(string) - 1] = 0;
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apply_escape_sequences(string);
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yylval->name = string;
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return STRING;
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}
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<pp_line>{WS}+ {}
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<pp_line>{ANY} {
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FIXME("Malformed preprocessor line directive?\n");
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BEGIN(INITIAL);
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}
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<pp_line>{NEWLINE} {
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FIXME("Malformed preprocessor line directive?\n");
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BEGIN(INITIAL);
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}
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<pp_ignore>{NEWLINE} {
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BEGIN(INITIAL);
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}
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<pp_ignore>{ANY} {}
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<pp>{NEWLINE} {
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FIXME("Unexpected preprocessor directive.\n");
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BEGIN(INITIAL);
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}
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<pp>{ANY} {}
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{ANY} {
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return yytext[0];
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}
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%%
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static void update_location(struct hlsl_ctx *ctx, YYLTYPE *lloc)
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{
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*lloc = ctx->location;
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ctx->location.column += yyget_leng(ctx->scanner);
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}
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int hlsl_lexer_compile(struct hlsl_ctx *ctx, const struct vkd3d_shader_code *hlsl)
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{
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YY_BUFFER_STATE buffer;
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int ret;
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yylex_init_extra(ctx, &ctx->scanner);
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buffer = yy_scan_bytes(hlsl->code, hlsl->size, ctx->scanner);
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yy_switch_to_buffer(buffer, ctx->scanner);
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ret = hlsl_yyparse(ctx->scanner, ctx);
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yy_delete_buffer(buffer, ctx->scanner);
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yylex_destroy(ctx->scanner);
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return ret;
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}
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static void apply_escape_sequences(char *str)
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{
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unsigned int i = 0, k = 0, r;
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while (str[i])
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{
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unsigned char v = 0;
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if (str[i] != '\\')
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{
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str[k++] = str[i];
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++i;
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continue;
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}
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++i;
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VKD3D_ASSERT(str[i]);
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if ('0' <= str[i] && str[i] <= '7')
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{
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/* octal, up to 3 digits. */
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for (r = 0; r < 3; ++r)
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{
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char c = str[i];
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if ('0' <= c && c <= '7')
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{
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v = v << 3;
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v += c - '0';
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++i;
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}
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else
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break;
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}
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str[k++] = v;
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continue;
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}
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if (str[i] == 'x')
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{
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bool number = false;
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/* hexadecimal */
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++i;
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while (1)
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{
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char c = str[i];
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if ('0' <= c && c <= '9')
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{
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v = v << 4;
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v += c - '0';
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number = true;
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++i;
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}
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else if ('a' <= c && c <= 'f')
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{
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v = v << 4;
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v += c - 'a' + 10;
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number = true;
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++i;
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}
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else if ('A' <= c && c <= 'F')
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{
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v = v << 4;
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v += c - 'A' + 10;
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number = true;
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++i;
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}
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else
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break;
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}
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if (number)
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str[k++] = v;
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else
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str[k++] = 'x';
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continue;
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}
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switch (str[i])
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{
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case 'a':
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str[k++] = '\a';
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break;
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case 'b':
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str[k++] = '\b';
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break;
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case 'f':
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str[k++] = '\f';
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break;
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case 'n':
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str[k++] = '\n';
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break;
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case 'r':
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str[k++] = '\r';
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break;
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case 't':
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str[k++] = '\t';
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break;
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case 'v':
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str[k++] = '\v';
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break;
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default:
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str[k++] = str[i];
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break;
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}
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++i;
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}
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str[k++] = '\0';
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}
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