Create a base GLSL front-end from the 3Dlabs glslang front-end from 20-Sep-2005.
git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@19944 e7fa87d3-cd2b-0410-9028-fcbf551c1848
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John Kessenich
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a0af473a8b
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212
glslang/Public/ShaderLang.h
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glslang/Public/ShaderLang.h
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//
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//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
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//All rights reserved.
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//
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//Redistribution and use in source and binary forms, with or without
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//modification, are permitted provided that the following conditions
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//are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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//
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// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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//POSSIBILITY OF SUCH DAMAGE.
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//
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#ifndef _COMPILER_INTERFACE_INCLUDED_
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#define _COMPILER_INTERFACE_INCLUDED_
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#include "../Include/ResourceLimits.h"
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#ifdef _WIN32
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#define C_DECL __cdecl
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#ifdef SH_EXPORTING
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#define SH_IMPORT_EXPORT __declspec(dllexport)
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#else
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#define SH_IMPORT_EXPORT __declspec(dllimport)
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#endif
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#else
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#define SH_IMPORT_EXPORT
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#define __fastcall
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#define C_DECL
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#endif
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//
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// This is the platform independent interface between an OGL driver
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// and the shading language compiler/linker.
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//
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#ifdef __cplusplus
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extern "C" {
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#endif
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//
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// Driver must call this first, once, before doing any other
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// compiler/linker operations.
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//
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SH_IMPORT_EXPORT int ShInitialize();
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//
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// Driver should call this at shutdown.
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//
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SH_IMPORT_EXPORT int __fastcall ShFinalize();
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//
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// Types of languages the compiler can consume.
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//
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typedef enum {
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EShLangVertex,
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EShLangFragment,
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EShLangPack,
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EShLangUnpack,
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EShLangCount,
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} EShLanguage;
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//
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// Types of output the linker will create.
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//
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typedef enum {
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EShExVertexFragment,
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EShExPackFragment,
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EShExUnpackFragment,
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EShExFragment
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} EShExecutable;
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//
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// Optimization level for the compiler.
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//
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typedef enum {
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EShOptNoGeneration,
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EShOptNone,
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EShOptSimple, // Optimizations that can be done quickly
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EShOptFull, // Optimizations that will take more time
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} EShOptimizationLevel;
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//
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// Build a table for bindings. This can be used for locating
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// attributes, uniforms, globals, etc., as needed.
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//
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typedef struct {
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char* name;
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int binding;
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} ShBinding;
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typedef struct {
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int numBindings;
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ShBinding* bindings; // array of bindings
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} ShBindingTable;
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//
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// ShHandle held by but opaque to the driver. It is allocated,
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// managed, and de-allocated by the compiler/linker. It's contents
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// are defined by and used by the compiler and linker. For example,
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// symbol table information and object code passed from the compiler
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// to the linker can be stored where ShHandle points.
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//
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// If handle creation fails, 0 will be returned.
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//
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typedef void* ShHandle;
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//
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// Driver calls these to create and destroy compiler/linker
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// objects.
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//
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SH_IMPORT_EXPORT ShHandle ShConstructCompiler(const EShLanguage, int debugOptions); // one per shader
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SH_IMPORT_EXPORT ShHandle ShConstructLinker(const EShExecutable, int debugOptions); // one per shader pair
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SH_IMPORT_EXPORT ShHandle ShConstructUniformMap(); // one per uniform namespace (currently entire program object)
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SH_IMPORT_EXPORT void ShDestruct(ShHandle);
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//
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// The return value of ShCompile is boolean, indicating
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// success or failure.
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//
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// The info-log should be written by ShCompile into
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// ShHandle, so it can answer future queries.
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//
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SH_IMPORT_EXPORT int ShCompile(
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const ShHandle,
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const char* const shaderStrings[],
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const int numStrings,
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const EShOptimizationLevel,
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const TBuiltInResource *resources,
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int debugOptions
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);
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//
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// Similar to ShCompile, but accepts an opaque handle to an
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// intermediate language structure.
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//
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SH_IMPORT_EXPORT int ShCompileIntermediate(
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ShHandle compiler,
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ShHandle intermediate,
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const EShOptimizationLevel,
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int debuggable // boolean
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);
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SH_IMPORT_EXPORT int ShLink(
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const ShHandle, // linker object
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const ShHandle h[], // compiler objects to link together
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const int numHandles,
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ShHandle uniformMap, // updated with new uniforms
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short int** uniformsAccessed, // returned with indexes of uniforms accessed
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int* numUniformsAccessed);
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SH_IMPORT_EXPORT int ShLinkExt(
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const ShHandle, // linker object
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const ShHandle h[], // compiler objects to link together
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const int numHandles);
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//
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// ShSetEncrpytionMethod is a place-holder for specifying
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// how source code is encrypted.
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//
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SH_IMPORT_EXPORT void ShSetEncryptionMethod(ShHandle);
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//
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// All the following return 0 if the information is not
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// available in the object passed down, or the object is bad.
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//
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SH_IMPORT_EXPORT const char* ShGetInfoLog(const ShHandle);
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SH_IMPORT_EXPORT const void* ShGetExecutable(const ShHandle);
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SH_IMPORT_EXPORT int ShSetVirtualAttributeBindings(const ShHandle, const ShBindingTable*); // to detect user aliasing
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SH_IMPORT_EXPORT int ShSetFixedAttributeBindings(const ShHandle, const ShBindingTable*); // to force any physical mappings
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SH_IMPORT_EXPORT int ShGetPhysicalAttributeBindings(const ShHandle, const ShBindingTable**); // for all attributes
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//
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// Tell the linker to never assign a vertex attribute to this list of physical attributes
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//
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SH_IMPORT_EXPORT int ShExcludeAttributes(const ShHandle, int *attributes, int count);
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//
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// Returns the location ID of the named uniform.
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// Returns -1 if error.
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//
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SH_IMPORT_EXPORT int ShGetUniformLocation(const ShHandle uniformMap, const char* name);
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enum TDebugOptions {
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EDebugOpNone = 0x000,
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EDebugOpIntermediate = 0x001,
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EDebugOpAssembly = 0x002,
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EDebugOpObjectCode = 0x004,
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EDebugOpLinkMaps = 0x008
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};
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#ifdef __cplusplus
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}
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#endif
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#endif // _COMPILER_INTERFACE_INCLUDED_
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