mojoshader_opengl.c
author Ryan C. Gordon <icculus@icculus.org>
Sat, 23 Aug 2008 20:33:03 -0400
changeset 449 5a978f37e750
parent 448 36f7cda4f4ab
child 450 6a9faf398c1d
permissions -rw-r--r--
Added support for GL_ARB_half_float_vertex and GL_OES_vertex_half_float.
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/**
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 * MojoShader; generate shader programs from bytecode of compiled
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 *  Direct3D shaders.
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 *
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 * Please see the file LICENSE.txt in the source's root directory.
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 *
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 *  This file written by Ryan C. Gordon.
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 */
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <assert.h>
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#ifdef _MSC_VER
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#define WIN32_LEAN_AND_MEAN 1
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#include <windows.h>  // GL headers need this for WINGDIAPI definition.
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#include <malloc.h>  // for alloca().
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#endif
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#include "mojoshader.h"
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#define GL_GLEXT_LEGACY 1
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#include "GL/gl.h"
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#include "GL/glext.h"
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#ifndef GL_HALF_FLOAT
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#define GL_HALF_FLOAT 0x140B
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#endif
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#ifndef GL_HALF_FLOAT_OES
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#define GL_HALF_FLOAT_OES 0x8D61
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#endif
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// Get basic wankery out of the way here...
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typedef unsigned int uint;  // this is a printf() helper. don't use for code.
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#ifdef _MSC_VER
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#define snprintf _snprintf
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typedef unsigned __int8 uint8;
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typedef unsigned __int32 uint32;
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typedef __int32 int32;
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// Warning Level 4 considered harmful.  :)
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#pragma warning(disable: 4100)  // "unreferenced formal parameter"
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#pragma warning(disable: 4389)  // "signed/unsigned mismatch"
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#else
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#include <stdint.h>
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typedef uint8_t uint8;
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typedef uint32_t uint32;
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typedef int32_t int32;
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#endif
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#define STATICARRAYLEN(x) ( (sizeof ((x))) / (sizeof ((x)[0])) )
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#ifndef SUPPORT_PROFILE_GLSL
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#define SUPPORT_PROFILE_GLSL 1
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#endif
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#ifndef SUPPORT_PROFILE_ARB1
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#define SUPPORT_PROFILE_ARB1 1
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#endif
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struct MOJOSHADER_glShader
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{
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    const MOJOSHADER_parseData *parseData;
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    GLuint handle;
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    uint32 refcount;
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};
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typedef struct
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{
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    MOJOSHADER_shaderType shader_type;
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    const MOJOSHADER_uniform *uniform;
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    GLuint location;
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    union {
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        GLint b;
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        GLint i[4];
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        GLfloat f[4];
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    } value;
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    GLfloat *uniform_array_buffer;
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} UniformMap;
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typedef struct
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{
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    MOJOSHADER_shaderType shader_type;
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    const MOJOSHADER_sampler *sampler;
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    GLuint location;
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    GLint value;
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} SamplerMap;
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typedef struct
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{
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    const MOJOSHADER_attribute *attribute;
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    GLuint location;
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} AttributeMap;
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struct MOJOSHADER_glProgram
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{
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    MOJOSHADER_glShader *vertex;
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    MOJOSHADER_glShader *fragment;
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    GLuint handle;
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    uint32 uniform_count;
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    UniformMap *uniforms;
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    uint32 sampler_count;
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    SamplerMap *samplers;
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    uint32 attribute_count;
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    AttributeMap *attributes;
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    uint32 refcount;
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};
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#ifndef WINGDIAPI
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#define WINGDIAPI
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#endif
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// Entry points in base OpenGL that lack function pointer prototypes...
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typedef WINGDIAPI void (APIENTRYP PFNGLGETINTEGERVPROC) (GLenum pname, GLint *params);
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typedef WINGDIAPI const GLubyte * (APIENTRYP PFNGLGETSTRINGPROC) (GLenum name);
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typedef WINGDIAPI GLenum (APIENTRYP PFNGLGETERRORPROC) (void);
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typedef WINGDIAPI void (APIENTRYP PFNGLENABLEPROC) (GLenum cap);
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typedef WINGDIAPI void (APIENTRYP PFNGLDISABLEPROC) (GLenum cap);
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struct MOJOSHADER_glContext
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{
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    // Allocators...
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    MOJOSHADER_malloc malloc_fn;
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    MOJOSHADER_free free_fn;
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    void *malloc_data;
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    // The constant register files...
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    // Man, it kills me how much memory this takes...
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    GLfloat vs_reg_file_f[8192 * 4];
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    GLint vs_reg_file_i[2047 * 4];
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    GLint vs_reg_file_b[2047];
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    GLfloat ps_reg_file_f[8192 * 4];
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    GLint ps_reg_file_i[2047 * 4];
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    GLint ps_reg_file_b[2047];
284
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    GLuint sampler_reg_file[16];
237
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    // GL stuff...
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    int opengl_major;
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    int opengl_minor;
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    MOJOSHADER_glProgram *bound_program;
262
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    char profile[16];
237
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    // Extensions...
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    int have_base_opengl:1;
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    int have_GL_ARB_vertex_program:1;
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    int have_GL_ARB_fragment_program:1;
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    int have_GL_NV_vertex_program2_option:1;
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    int have_GL_NV_fragment_program2:1;
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    int have_GL_NV_vertex_program3:1;
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    int have_GL_NV_gpu_program4:1;
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    int have_GL_ARB_shader_objects:1;
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    int have_GL_ARB_vertex_shader:1;
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    int have_GL_ARB_fragment_shader:1;
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    int have_GL_ARB_shading_language_100:1;
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    int have_GL_NV_half_float:1;
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    int have_GL_ARB_half_float_vertex:1;
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    int have_GL_OES_vertex_half_float:1;
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    // Entry points...
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    PFNGLGETSTRINGPROC glGetString;
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    PFNGLGETERRORPROC glGetError;
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    PFNGLGETINTEGERVPROC glGetIntegerv;
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    PFNGLENABLEPROC glEnable;
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    PFNGLDISABLEPROC glDisable;
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    PFNGLDELETEOBJECTARBPROC glDeleteObject;
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    PFNGLATTACHOBJECTARBPROC glAttachObject;
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    PFNGLCOMPILESHADERARBPROC glCompileShader;
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    PFNGLCREATEPROGRAMOBJECTARBPROC glCreateProgramObject;
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    PFNGLCREATESHADEROBJECTARBPROC glCreateShaderObject;
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    PFNGLDISABLEVERTEXATTRIBARRAYARBPROC glDisableVertexAttribArray;
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    PFNGLENABLEVERTEXATTRIBARRAYARBPROC glEnableVertexAttribArray;
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    PFNGLGETATTRIBLOCATIONARBPROC glGetAttribLocation;
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    PFNGLGETINFOLOGARBPROC glGetInfoLog;
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    PFNGLGETOBJECTPARAMETERIVARBPROC glGetObjectParameteriv;
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    PFNGLGETUNIFORMLOCATIONARBPROC glGetUniformLocation;
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    PFNGLLINKPROGRAMARBPROC glLinkProgram;
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    PFNGLSHADERSOURCEARBPROC glShaderSource;
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    PFNGLUNIFORM1IARBPROC glUniform1i;
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    PFNGLUNIFORM4FVARBPROC glUniform4fv;
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    PFNGLUNIFORM4IVARBPROC glUniform4iv;
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    PFNGLUSEPROGRAMOBJECTARBPROC glUseProgramObject;
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    PFNGLVERTEXATTRIBPOINTERARBPROC glVertexAttribPointer;
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    PFNGLGETPROGRAMIVARBPROC glGetProgramivARB;
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    PFNGLGETPROGRAMSTRINGARBPROC glGetProgramStringARB;
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    PFNGLPROGRAMLOCALPARAMETER4FVARBPROC glProgramLocalParameter4fvARB;
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    PFNGLPROGRAMLOCALPARAMETERI4IVNVPROC glProgramLocalParameterI4ivNV;
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    PFNGLDELETEPROGRAMSARBPROC glDeleteProgramsARB;
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    PFNGLGENPROGRAMSARBPROC glGenProgramsARB;
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    PFNGLBINDPROGRAMARBPROC glBindProgramARB;
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    PFNGLPROGRAMSTRINGARBPROC glProgramStringARB;
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    // interface for profile-specific things.
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    int (*profileMaxUniforms)(MOJOSHADER_shaderType shader_type);
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    int (*profileCompileShader)(const MOJOSHADER_parseData *pd, GLuint *s);
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    void (*profileDeleteShader)(const GLuint shader);
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    void (*profileDeleteProgram)(const GLuint program);
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    GLint (*profileGetAttribLocation)(MOJOSHADER_glProgram *program, int idx);
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    GLint (*profileGetUniformLocation)(MOJOSHADER_glProgram *, MOJOSHADER_glShader *, int);
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    GLint (*profileGetSamplerLocation)(MOJOSHADER_glProgram *, MOJOSHADER_glShader *, int);
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    GLuint (*profileLinkProgram)(MOJOSHADER_glShader *, MOJOSHADER_glShader *);
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    void (*profileUseProgramObject)(MOJOSHADER_glProgram *program);
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    void (*profileUniform4fv)(const MOJOSHADER_parseData *, GLint, GLsizei, GLfloat *);
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    void (*profileUniform4iv)(const MOJOSHADER_parseData *, GLint, GLsizei, GLint *);
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    void (*profileUniform1i)(const MOJOSHADER_parseData *, GLint, GLint);
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    void (*profileSetSampler)(GLint loc, GLuint sampler);
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    int (*profileMustLoadConstantArrays)(void);
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};
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323
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237
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static MOJOSHADER_glContext *ctx = NULL;
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219
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// Error state...
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static char error_buffer[1024] = { '\0' };
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static void set_error(const char *str)
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{
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    snprintf(error_buffer, sizeof (error_buffer), "%s", str);
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} // set_error
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202
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// #define this to force app to supply an allocator, so there's no reference
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//  to the C runtime's malloc() and free()...
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#if MOJOSHADER_FORCE_ALLOCATOR
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#define internal_malloc NULL
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#define internal_free NULL
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#else
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static void *internal_malloc(int bytes, void *d) { return malloc(bytes); }
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static void internal_free(void *ptr, void *d) { free(ptr); }
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#endif
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static inline void *Malloc(const size_t len)
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{
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    void *retval = ctx->malloc_fn((int) len, ctx->malloc_data);
220
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    if (retval == NULL)
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        set_error("out of memory");
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    return retval;
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} // Malloc
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static inline void Free(void *ptr)
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{
220
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    if (ptr != NULL)
237
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        ctx->free_fn(ptr, ctx->malloc_data);
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} // Free
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static inline void toggle_gl_state(GLenum state, int val)
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{
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    if (val)
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        ctx->glEnable(state);
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    else
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        ctx->glDisable(state);
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} // toggle_gl_state
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411
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// profile-specific implementations...
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#if SUPPORT_PROFILE_GLSL
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static inline GLenum glsl_shader_type(const MOJOSHADER_shaderType t)
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{
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    if (t == MOJOSHADER_TYPE_VERTEX)
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        return GL_VERTEX_SHADER;
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    else if (t == MOJOSHADER_TYPE_PIXEL)
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        return GL_FRAGMENT_SHADER;
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    // !!! FIXME: geometry shaders?
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    return GL_NONE;
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} // glsl_shader_type
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438
73492129c1af Expose true constant arrays in parseData, load them at link time for GLSL.
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static int impl_GLSL_MustLoadConstantArrays(void) { return 1; }
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411
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static int impl_GLSL_MaxUniforms(MOJOSHADER_shaderType shader_type)
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{
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    GLenum pname = GL_NONE;
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    GLint val = 0;
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    if (shader_type == MOJOSHADER_TYPE_VERTEX)
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        pname = GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB;
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    else if (shader_type == MOJOSHADER_TYPE_PIXEL)
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        pname = GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB;
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    else
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        return -1;
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    ctx->glGetIntegerv(pname, &val);
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    return (int) val;
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} // impl_GLSL_MaxUniforms
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static int impl_GLSL_CompileShader(const MOJOSHADER_parseData *pd, GLuint *s)
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{
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    GLint ok = 0;
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    GLint shaderlen = (GLint) pd->output_len;
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    const GLenum shader_type = glsl_shader_type(pd->shader_type);
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    GLuint shader = ctx->glCreateShaderObject(shader_type);
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    ctx->glShaderSource(shader, 1, (const GLchar **) &pd->output, &shaderlen);
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    ctx->glCompileShader(shader);
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    ctx->glGetObjectParameteriv(shader, GL_OBJECT_COMPILE_STATUS_ARB, &ok);
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    if (!ok)
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    {
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        GLsizei len = 0;
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        ctx->glGetInfoLog(shader, sizeof (error_buffer), &len,
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                          (GLchar *) error_buffer);
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        *s = 0;
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        return 0;
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    } // if
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    *s = shader;
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    return 1;
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} // impl_GLSL_CompileShader
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static void impl_GLSL_DeleteShader(const GLuint shader)
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{
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    ctx->glDeleteObject(shader);
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} // impl_GLSL_DeleteShader
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static void impl_GLSL_DeleteProgram(const GLuint program)
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{
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    ctx->glDeleteObject(program);
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} // impl_GLSL_DeleteProgram
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static GLint impl_GLSL_GetUniformLocation(MOJOSHADER_glProgram *program,
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                                          MOJOSHADER_glShader *shader, int idx)
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{
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    return ctx->glGetUniformLocation(program->handle,
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                                     shader->parseData->uniforms[idx].name);
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} // impl_GLSL_GetUniformLocation
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static GLint impl_GLSL_GetSamplerLocation(MOJOSHADER_glProgram *program,
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                                          MOJOSHADER_glShader *shader, int idx)
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{
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    return ctx->glGetUniformLocation(program->handle,
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                                     shader->parseData->samplers[idx].name);
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} // impl_GLSL_GetSamplerLocation
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static GLint impl_GLSL_GetAttribLocation(MOJOSHADER_glProgram *program, int idx)
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{
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    const MOJOSHADER_parseData *pd = program->vertex->parseData;
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    const MOJOSHADER_attribute *a = pd->attributes;
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    return ctx->glGetAttribLocation(program->handle, a[idx].name);
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} // impl_GLSL_GetAttribLocation
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static GLuint impl_GLSL_LinkProgram(MOJOSHADER_glShader *vshader,
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                                    MOJOSHADER_glShader *pshader)
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{
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    const GLuint program = ctx->glCreateProgramObject();
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    if (vshader != NULL) ctx->glAttachObject(program, vshader->handle);
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    if (pshader != NULL) ctx->glAttachObject(program, pshader->handle);
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    ctx->glLinkProgram(program);
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   363
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   364
    GLint ok = 0;
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    ctx->glGetObjectParameteriv(program, GL_OBJECT_LINK_STATUS_ARB, &ok);
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   366
    if (!ok)
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    {
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        GLsizei len = 0;
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        ctx->glGetInfoLog(program, sizeof (error_buffer), &len, (GLchar *) error_buffer);
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        ctx->glDeleteObject(program);
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        return 0;
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   372
    } // if
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   373
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   374
    return program;
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   375
} // impl_GLSL_LinkProgram
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   376
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   377
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static void impl_GLSL_UseProgramObject(MOJOSHADER_glProgram *program)
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{
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   380
    ctx->glUseProgramObject((program != NULL) ? program->handle : 0);
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   381
} // impl_GLSL_UseProgramObject
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   382
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   383
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   384
static void impl_GLSL_Uniform4fv(const MOJOSHADER_parseData *pd, GLint loc,
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   385
                                 GLsizei siz, GLfloat *v)
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   386
{
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   387
    ctx->glUniform4fv(loc, siz, v);
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   388
} // impl_GLSL_Uniform4fv
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   389
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parents: 410
diff changeset
   390
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   391
static void impl_GLSL_Uniform4iv(const MOJOSHADER_parseData *pd, GLint loc,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   392
                                 GLsizei siz, GLint *v)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   393
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   394
    ctx->glUniform4iv(loc, siz, v);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   395
} // impl_GLSL_Uniform4iv
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   396
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   397
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   398
static void impl_GLSL_Uniform1i(const MOJOSHADER_parseData *pd, GLint loc,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   399
                                GLint v)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   400
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   401
    ctx->glUniform1i(loc, v);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   402
} // impl_GLSL_Uniform1i
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   403
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   404
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   405
static void impl_GLSL_SetSampler(GLint loc, GLuint sampler)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   406
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   407
    ctx->glUniform1i(loc, sampler);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   408
} // impl_GLSL_SetSampler
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   409
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   410
#endif  // SUPPORT_PROFILE_GLSL
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   412
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   413
#if SUPPORT_PROFILE_ARB1
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   414
static inline GLenum arb1_shader_type(const MOJOSHADER_shaderType t)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   415
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   416
    if (t == MOJOSHADER_TYPE_VERTEX)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   417
        return GL_VERTEX_PROGRAM_ARB;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   418
    else if (t == MOJOSHADER_TYPE_PIXEL)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   419
        return GL_FRAGMENT_PROGRAM_ARB;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   420
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   421
    // !!! FIXME: geometry shaders?
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   422
    return GL_NONE;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   423
} // arb1_shader_type
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   424
438
73492129c1af Expose true constant arrays in parseData, load them at link time for GLSL.
Ryan C. Gordon <icculus@icculus.org>
parents: 436
diff changeset
   425
static int impl_ARB1_MustLoadConstantArrays(void) { return 0; }
411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   426
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   427
static int impl_ARB1_MaxUniforms(MOJOSHADER_shaderType shader_type)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   428
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   429
    GLint retval = 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   430
    const GLenum program_type = arb1_shader_type(shader_type);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   431
    if (program_type == GL_NONE)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   432
        return -1;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   433
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   434
    ctx->glGetProgramivARB(program_type, GL_MAX_PROGRAM_PARAMETERS_ARB, &retval);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   435
    return (int) retval;  // !!! FIXME: times four?
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   436
} // impl_ARB1_MaxUniforms
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   437
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   438
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   439
static int impl_ARB1_CompileShader(const MOJOSHADER_parseData *pd, GLuint *s)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   440
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   441
    GLint shaderlen = (GLint) pd->output_len;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   442
    const GLenum shader_type = arb1_shader_type(pd->shader_type);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   443
    GLuint shader = 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   444
    ctx->glGenProgramsARB(1, &shader);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   445
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   446
    ctx->glGetError();  // flush any existing error state.
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   447
    ctx->glBindProgramARB(shader_type, shader);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   448
    ctx->glProgramStringARB(shader_type, GL_PROGRAM_FORMAT_ASCII_ARB,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   449
                                shaderlen, pd->output);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   450
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   451
    if (ctx->glGetError() == GL_INVALID_OPERATION)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   452
    { 
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   453
        GLint pos = 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   454
        ctx->glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &pos);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   455
        const GLubyte *errstr = ctx->glGetString(GL_PROGRAM_ERROR_STRING_ARB);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   456
        snprintf(error_buffer, sizeof (error_buffer),
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   457
                  "ARB1 compile error at position %d: %s",
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   458
                  (int) pos, (const char *) errstr);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   459
        ctx->glBindProgramARB(shader_type, 0);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   460
        ctx->glDeleteProgramsARB(1, &shader);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   461
        *s = 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   462
        return 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   463
    } // if
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   464
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   465
    *s = shader;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   466
    return 1;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   467
} // impl_ARB1_CompileShader
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   468
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   469
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   470
static void impl_ARB1_DeleteShader(const GLuint _shader)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   471
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   472
    GLuint shader = _shader;  // const removal.
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   473
    ctx->glDeleteProgramsARB(1, &shader);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   474
} // impl_ARB1_DeleteShader
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   475
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   476
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   477
static void impl_ARB1_DeleteProgram(const GLuint program)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   478
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   479
    // no-op. ARB1 doesn't have real linked programs.
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   480
} // impl_GLSL_DeleteProgram
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   481
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   482
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   483
static GLint impl_ARB1_GetUniformLocation(MOJOSHADER_glProgram *program,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   484
                                          MOJOSHADER_glShader *shader, int idx)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   485
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   486
    assert(shader->parseData->uniforms[idx].type == MOJOSHADER_UNIFORM_FLOAT);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   487
    return shader->parseData->uniforms[idx].index;  // !!! FIXME: doesn't work if there are int or bool uniforms!
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   488
} // impl_ARB1_GetUniformLocation
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   489
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   490
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   491
static GLint impl_ARB1_GetSamplerLocation(MOJOSHADER_glProgram *program,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   492
                                          MOJOSHADER_glShader *shader, int idx)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   493
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   494
    return shader->parseData->samplers[idx].index;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   495
} // impl_ARB1_GetSamplerLocation
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   496
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   497
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   498
static GLint impl_ARB1_GetAttribLocation(MOJOSHADER_glProgram *program, int idx)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   499
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   500
    return idx;  // map to vertex arrays in the same order as the parseData.
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   501
} // impl_ARB1_GetAttribLocation
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   502
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   503
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   504
static GLuint impl_ARB1_LinkProgram(MOJOSHADER_glShader *vshader,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   505
                                    MOJOSHADER_glShader *pshader)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   506
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   507
    // there is no formal linking in ARB1...just return a unique value.
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   508
    static GLuint retval = 1;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   509
    return retval++;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   510
} // impl_ARB1_LinkProgram
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   511
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   512
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   513
static void impl_ARB1_UseProgramObject(MOJOSHADER_glProgram *program)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   514
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   515
    GLuint vhandle = 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   516
    GLuint phandle = 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   517
    if (program != NULL)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   518
    {
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   519
        if (program->vertex != NULL)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   520
            vhandle = program->vertex->handle;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   521
        if (program->fragment != NULL)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   522
            phandle = program->fragment->handle;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   523
    } // if
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   524
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   525
    toggle_gl_state(GL_VERTEX_PROGRAM_ARB, vhandle != 0);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   526
    toggle_gl_state(GL_FRAGMENT_PROGRAM_ARB, phandle != 0);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   527
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   528
    ctx->glBindProgramARB(GL_VERTEX_PROGRAM_ARB, vhandle);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   529
    ctx->glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, phandle);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   530
} // impl_ARB1_UseProgramObject
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   531
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   532
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   533
static void impl_ARB1_Uniform4fv(const MOJOSHADER_parseData *pd, GLint loc,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   534
                                 GLsizei siz, GLfloat *v)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   535
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   536
    int i;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   537
    const GLenum shader_type = arb1_shader_type(pd->shader_type);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   538
    for (i = 0; i < siz; i++, v += 4)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   539
        ctx->glProgramLocalParameter4fvARB(shader_type, loc + i, v);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   540
} // impl_ARB1_Uniform4fv
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   541
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   542
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   543
static void impl_ARB1_Uniform4iv(const MOJOSHADER_parseData *pd, GLint loc,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   544
                                 GLsizei siz, GLint *v)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   545
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   546
    int i;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   547
    const GLenum shader_type = arb1_shader_type(pd->shader_type);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   548
    for (i = 0; i < siz; i++, v += 4)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   549
    {
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   550
        GLfloat f[4] = {
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   551
            (GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], (GLfloat) v[3]
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   552
        };
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   553
        ctx->glProgramLocalParameter4fvARB(shader_type, loc + i, f);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   554
    } // for
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   555
} // impl_ARB1_Uniform4iv
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   556
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   557
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   558
static void impl_ARB1_Uniform1i(const MOJOSHADER_parseData *pd, GLint loc,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   559
                                GLint _v)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   560
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   561
    const GLenum shader_type = arb1_shader_type(pd->shader_type);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   562
    const GLfloat v = (GLfloat) _v;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   563
    GLfloat f[4] = { v, v, v, v };
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   564
    ctx->glProgramLocalParameter4fvARB(shader_type, loc, f);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   565
} // impl_ARB1_Uniform1i
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   566
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   567
431
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   568
static void impl_NV4_Uniform4iv(const MOJOSHADER_parseData *pd, GLint loc,
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   569
                                 GLsizei siz, GLint *v)
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   570
{
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   571
    int i;
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   572
    const GLenum shader_type = arb1_shader_type(pd->shader_type);
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   573
    for (i = 0; i < siz; i++, v += 4)
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   574
        ctx->glProgramLocalParameterI4ivNV(shader_type, loc + i, v);
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   575
} // impl_NV4_Uniform4iv
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   576
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   577
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   578
static void impl_NV4_Uniform1i(const MOJOSHADER_parseData *pd, GLint loc,
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   579
                                GLint _v)
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   580
{
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   581
    const GLenum shader_type = arb1_shader_type(pd->shader_type);
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   582
    GLint v[4] = { _v, _v, _v, _v };
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   583
    ctx->glProgramLocalParameterI4ivNV(shader_type, loc, v);
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   584
} // impl_NV4_Uniform1i
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   585
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   586
411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   587
static void impl_ARB1_SetSampler(GLint loc, GLuint sampler)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   588
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   589
    // no-op in this profile...arb1 uses the texture units as-is.
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   590
    assert(loc == (GLint) sampler);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   591
} // impl_ARB1_SetSampler
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   592
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   593
#endif  // SUPPORT_PROFILE_ARB1
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   594
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   595
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   596
const char *MOJOSHADER_glGetError(void)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   597
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   598
    return error_buffer;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   599
} // MOJOSHADER_glGetError
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   600
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   601
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   602
static void *loadsym(void *(*lookup)(const char *fn), const char *fn, int *ext)
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   603
{
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   604
    void *retval = NULL;
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   605
    if (lookup != NULL)
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   606
    {
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   607
        retval = lookup(fn);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   608
        if (retval == NULL)
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   609
        {
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   610
            char arbfn[64];
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   611
            snprintf(arbfn, sizeof (arbfn), "%sARB", fn);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   612
            retval = lookup(arbfn);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   613
        } // if
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   614
    } // if
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   615
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   616
    if (retval == NULL)
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   617
        *ext = 0;
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   618
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   619
    return retval;
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   620
} // loadsym
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   621
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   622
static void lookup_entry_points(void *(*lookup)(const char *fnname))
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   623
{
363
bea8bf9e5536 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 362
diff changeset
   624
    #define DO_LOOKUP(ext, typ, fn) { \
bea8bf9e5536 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 362
diff changeset
   625
        int exist = ctx->have_##ext; \
bea8bf9e5536 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 362
diff changeset
   626
        ctx->fn = (typ) loadsym(lookup, #fn, &exist); \
bea8bf9e5536 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 362
diff changeset
   627
        ctx->have_##ext = exist; \
bea8bf9e5536 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 362
diff changeset
   628
    }
bea8bf9e5536 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 362
diff changeset
   629
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   630
    DO_LOOKUP(base_opengl, PFNGLGETSTRINGPROC, glGetString);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   631
    DO_LOOKUP(base_opengl, PFNGLGETERRORPROC, glGetError);
276
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
   632
    DO_LOOKUP(base_opengl, PFNGLGETINTEGERVPROC, glGetIntegerv);
358
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   633
    DO_LOOKUP(base_opengl, PFNGLENABLEPROC, glEnable);
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   634
    DO_LOOKUP(base_opengl, PFNGLDISABLEPROC, glDisable);
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   635
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLDELETEOBJECTARBPROC, glDeleteObject);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   636
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLATTACHOBJECTARBPROC, glAttachObject);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   637
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLCOMPILESHADERARBPROC, glCompileShader);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   638
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLCREATEPROGRAMOBJECTARBPROC, glCreateProgramObject);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   639
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLCREATESHADEROBJECTARBPROC, glCreateShaderObject);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   640
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLGETINFOLOGARBPROC, glGetInfoLog);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   641
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLGETOBJECTPARAMETERIVARBPROC, glGetObjectParameteriv);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   642
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLGETUNIFORMLOCATIONARBPROC, glGetUniformLocation);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   643
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLLINKPROGRAMARBPROC, glLinkProgram);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   644
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLSHADERSOURCEARBPROC, glShaderSource);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   645
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLUNIFORM1IARBPROC, glUniform1i);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   646
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLUNIFORM4FVARBPROC, glUniform4fv);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   647
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLUNIFORM4IVARBPROC, glUniform4iv);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   648
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLUSEPROGRAMOBJECTARBPROC, glUseProgramObject);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   649
    DO_LOOKUP(GL_ARB_vertex_shader, PFNGLDISABLEVERTEXATTRIBARRAYARBPROC, glDisableVertexAttribArray);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   650
    DO_LOOKUP(GL_ARB_vertex_shader, PFNGLENABLEVERTEXATTRIBARRAYARBPROC, glEnableVertexAttribArray);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   651
    DO_LOOKUP(GL_ARB_vertex_shader, PFNGLGETATTRIBLOCATIONARBPROC, glGetAttribLocation);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   652
    DO_LOOKUP(GL_ARB_vertex_shader, PFNGLVERTEXATTRIBPOINTERARBPROC, glVertexAttribPointer);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   653
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLUSEPROGRAMOBJECTARBPROC, glUseProgramObject);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   654
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLVERTEXATTRIBPOINTERARBPROC, glVertexAttribPointer);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   655
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLGETPROGRAMIVARBPROC, glGetProgramivARB);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   656
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLGETPROGRAMSTRINGARBPROC, glGetProgramStringARB);
395
d2307cc5d6e7 Use local parameters, not environment params, in the arb1/nv2 profiles.
Ryan C. Gordon <icculus@icculus.org>
parents: 394
diff changeset
   657
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLPROGRAMLOCALPARAMETER4FVARBPROC, glProgramLocalParameter4fvARB);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   658
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLDELETEPROGRAMSARBPROC, glDeleteProgramsARB);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   659
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLGENPROGRAMSARBPROC, glGenProgramsARB);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   660
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLBINDPROGRAMARBPROC, glBindProgramARB);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   661
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLPROGRAMSTRINGARBPROC, glProgramStringARB);
431
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   662
    DO_LOOKUP(GL_NV_gpu_program4, PFNGLPROGRAMLOCALPARAMETERI4IVNVPROC, glProgramLocalParameterI4ivNV);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   663
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   664
    #undef DO_LOOKUP
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   665
} // lookup_entry_points
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   666
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   667
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   668
static int verify_extension(const char *ext, int have, const char *extlist,
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   669
                            int major, int minor)
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   670
{
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   671
    if (have == 0)
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   672
        return 0;  // don't bother checking, we're missing an entry point.
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   673
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   674
    else if (!ctx->have_base_opengl)
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   675
        return 0;  // don't bother checking, we're missing basic functionality.
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   676
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   677
    // See if it's in the spec for this GL implementation's version.
236
8e2fc535b210 Support for half-float attribute arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 230
diff changeset
   678
    if (major >= 0)
8e2fc535b210 Support for half-float attribute arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 230
diff changeset
   679
    {
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   680
        if ( ((ctx->opengl_major << 16) | (ctx->opengl_minor & 0xFFFF)) >=
236
8e2fc535b210 Support for half-float attribute arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 230
diff changeset
   681
             ((major << 16) | (minor & 0xFFFF)) )
8e2fc535b210 Support for half-float attribute arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 230
diff changeset
   682
            return 1;
8e2fc535b210 Support for half-float attribute arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 230
diff changeset
   683
    } // if
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   684
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   685
    // Not available in the GL version, check the extension list.
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   686
    const char *ptr = strstr(extlist, ext);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   687
    if (ptr == NULL)
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   688
        return 0;
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   689
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   690
    const char endchar = ptr[strlen(ext)];
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   691
    if ((endchar == '\0') || (endchar == ' '))
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   692
        return 1;  // extension is in the list.
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   693
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   694
    return 0;  // just not supported, fail.
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   695
} // verify_extension
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   696
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   697
407
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   698
static void parse_opengl_version_str(const char *verstr, int *maj, int *min)
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   699
{
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   700
    if (verstr == NULL)
407
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   701
        *maj = *min = 0;
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   702
    else
407
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   703
        sscanf(verstr, "%d.%d", maj, min);
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   704
} // parse_opengl_version_str
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   705
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   706
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   707
static inline void parse_opengl_version(const char *verstr)
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   708
{
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   709
    parse_opengl_version_str(verstr, &ctx->opengl_major, &ctx->opengl_minor);
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   710
} // parse_opengl_version
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   711
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   712
407
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   713
static int glsl_version_atleast(int maj, int min)
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   714
{
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   715
    int glslmin = 0;
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   716
    int glslmaj = 0;
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   717
    ctx->glGetError();  // flush any existing error state.
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   718
    const GLenum enumval = GL_SHADING_LANGUAGE_VERSION_ARB;
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   719
    const char *str = (const char *) ctx->glGetString(enumval);
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   720
    if (ctx->glGetError() == GL_INVALID_ENUM)
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   721
        return 0;  // this is a basic, 1.0-compliant implementation.
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   722
    parse_opengl_version_str(str, &glslmaj, &glslmin);
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   723
    return ( (glslmaj > maj) || ((glslmaj == maj) && (glslmin >= min)) );
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   724
} // glsl_version_atleast
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   725
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   726
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   727
static void load_extensions(void *(*lookup)(const char *fnname))
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   728
{
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   729
    const char *extlist = NULL;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   730
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   731
    ctx->have_base_opengl = 1;
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   732
    ctx->have_GL_ARB_vertex_program = 1;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   733
    ctx->have_GL_ARB_fragment_program = 1;
388
5930c6cd840e Fixed detection of OpenGL extensions needed by nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 363
diff changeset
   734
    ctx->have_GL_NV_vertex_program2_option = 1;
5930c6cd840e Fixed detection of OpenGL extensions needed by nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 363
diff changeset
   735
    ctx->have_GL_NV_fragment_program2 = 1;
421
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
   736
    ctx->have_GL_NV_vertex_program3 = 1;
432
6c59f6c0456a Fixed uninitialized variable in OpenGL glue's nv4 profile detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 431
diff changeset
   737
    ctx->have_GL_NV_gpu_program4 = 1;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   738
    ctx->have_GL_ARB_shader_objects = 1;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   739
    ctx->have_GL_ARB_vertex_shader = 1;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   740
    ctx->have_GL_ARB_fragment_shader = 1;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   741
    ctx->have_GL_ARB_shading_language_100 = 1;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   742
    ctx->have_GL_NV_half_float = 1;
449
5a978f37e750 Added support for GL_ARB_half_float_vertex and GL_OES_vertex_half_float.
Ryan C. Gordon <icculus@icculus.org>
parents: 448
diff changeset
   743
    ctx->have_GL_ARB_half_float_vertex = 1;
5a978f37e750 Added support for GL_ARB_half_float_vertex and GL_OES_vertex_half_float.
Ryan C. Gordon <icculus@icculus.org>
parents: 448
diff changeset
   744
    ctx->have_GL_OES_vertex_half_float = 1;
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   745
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   746
    lookup_entry_points(lookup);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   747
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   748
    if (!ctx->have_base_opengl)
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   749
        set_error("missing basic OpenGL entry points");
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   750
    else
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   751
    {
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   752
        parse_opengl_version((const char *) ctx->glGetString(GL_VERSION));
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   753
        extlist = (const char *) ctx->glGetString(GL_EXTENSIONS);
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   754
    } // else
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   755
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   756
    if (extlist == NULL)
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   757
        extlist = "";  // just in case.
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   758
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   759
    #define VERIFY_EXT(ext, major, minor) \
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   760
        ctx->have_##ext = verify_extension(#ext, ctx->have_##ext, extlist, major, minor)
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   761
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   762
    VERIFY_EXT(GL_ARB_vertex_program, -1, -1);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   763
    VERIFY_EXT(GL_ARB_fragment_program, -1, -1);
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   764
    VERIFY_EXT(GL_ARB_shader_objects, 2, 0);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   765
    VERIFY_EXT(GL_ARB_vertex_shader, 2, 0);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   766
    VERIFY_EXT(GL_ARB_fragment_shader, 2, 0);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   767
    VERIFY_EXT(GL_ARB_shading_language_100, 2, 0);
420
bfcebc3bf560 Corrected test for nv2 profile support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 416
diff changeset
   768
    VERIFY_EXT(GL_NV_vertex_program2_option, -1, -1);
bfcebc3bf560 Corrected test for nv2 profile support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 416
diff changeset
   769
    VERIFY_EXT(GL_NV_fragment_program2, -1, -1);
421
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
   770
    VERIFY_EXT(GL_NV_vertex_program3, -1, -1);
236
8e2fc535b210 Support for half-float attribute arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 230
diff changeset
   771
    VERIFY_EXT(GL_NV_half_float, -1, -1);
449
5a978f37e750 Added support for GL_ARB_half_float_vertex and GL_OES_vertex_half_float.
Ryan C. Gordon <icculus@icculus.org>
parents: 448
diff changeset
   772
    VERIFY_EXT(GL_ARB_half_float_vertex, 3, 0);
5a978f37e750 Added support for GL_ARB_half_float_vertex and GL_OES_vertex_half_float.
Ryan C. Gordon <icculus@icculus.org>
parents: 448
diff changeset
   773
    VERIFY_EXT(GL_OES_vertex_half_float, -1, -1);
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   774
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   775
    #undef VERIFY_EXT
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   776
} // load_extensions
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   777
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   778
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   779
static int valid_profile(const char *profile)
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   780
{
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   781
    if (!ctx->have_base_opengl)
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   782
        return 0;
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   783
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   784
    #define MUST_HAVE(p, x) \
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   785
        if (!ctx->have_##x) { set_error(#p " profile needs " #x); return 0; }
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   786
291
2453590bae1b Fix/disable annoying Visual C++ level 4 warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 285
diff changeset
   787
    if (profile == NULL)
2453590bae1b Fix/disable annoying Visual C++ level 4 warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 285
diff changeset
   788
    {
2453590bae1b Fix/disable annoying Visual C++ level 4 warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 285
diff changeset
   789
        set_error("NULL profile");
2453590bae1b Fix/disable annoying Visual C++ level 4 warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 285
diff changeset
   790
        return 0;
2453590bae1b Fix/disable annoying Visual C++ level 4 warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 285
diff changeset
   791
    } // if
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   792
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   793
    #if SUPPORT_PROFILE_ARB1
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   794
    else if (strcmp(profile, MOJOSHADER_PROFILE_ARB1) == 0)
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   795
    {
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   796
        MUST_HAVE(MOJOSHADER_PROFILE_ARB1, GL_ARB_vertex_program);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   797
        MUST_HAVE(MOJOSHADER_PROFILE_ARB1, GL_ARB_fragment_program);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   798
    } // else if
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   799
361
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
   800
    else if (strcmp(profile, MOJOSHADER_PROFILE_NV2) == 0)
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
   801
    {
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
   802
        MUST_HAVE(MOJOSHADER_PROFILE_NV2, GL_ARB_vertex_program);
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
   803
        MUST_HAVE(MOJOSHADER_PROFILE_NV2, GL_ARB_fragment_program);
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
   804
        MUST_HAVE(MOJOSHADER_PROFILE_NV2, GL_NV_vertex_program2_option);
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
   805
        MUST_HAVE(MOJOSHADER_PROFILE_NV2, GL_NV_fragment_program2);
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
   806
    } // else if
421
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
   807
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
   808
    else if (strcmp(profile, MOJOSHADER_PROFILE_NV3) == 0)
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
   809
    {
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
   810
        MUST_HAVE(MOJOSHADER_PROFILE_NV3, GL_ARB_vertex_program);
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
   811
        MUST_HAVE(MOJOSHADER_PROFILE_NV3, GL_ARB_fragment_program);
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
   812
        MUST_HAVE(MOJOSHADER_PROFILE_NV3, GL_NV_vertex_program3);
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
   813
        MUST_HAVE(MOJOSHADER_PROFILE_NV3, GL_NV_fragment_program2);
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
   814
    } // else if
431
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   815
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   816
    else if (strcmp(profile, MOJOSHADER_PROFILE_NV4) == 0)
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   817
    {
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   818
        MUST_HAVE(MOJOSHADER_PROFILE_NV4, GL_NV_gpu_program4);
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   819
    } // else if
361
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
   820
    #endif
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
   821
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   822
    #if SUPPORT_PROFILE_GLSL
407
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   823
    else if (strcmp(profile, MOJOSHADER_PROFILE_GLSL120) == 0)
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   824
    {
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   825
        MUST_HAVE(MOJOSHADER_PROFILE_GLSL, GL_ARB_shader_objects);
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   826
        MUST_HAVE(MOJOSHADER_PROFILE_GLSL, GL_ARB_vertex_shader);
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   827
        MUST_HAVE(MOJOSHADER_PROFILE_GLSL, GL_ARB_fragment_shader);
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   828
        MUST_HAVE(MOJOSHADER_PROFILE_GLSL, GL_ARB_shading_language_100);
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   829
        // if you got here, you have all the extensions.
413
618b677f4581 Fixed glsl120 profile test in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 411
diff changeset
   830
        if (!glsl_version_atleast(1, 20))
407
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   831
            return 0;
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   832
    } // else if
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   833
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   834
    else if (strcmp(profile, MOJOSHADER_PROFILE_GLSL) == 0)
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   835
    {
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   836
        MUST_HAVE(MOJOSHADER_PROFILE_GLSL, GL_ARB_shader_objects);
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   837
        MUST_HAVE(MOJOSHADER_PROFILE_GLSL, GL_ARB_vertex_shader);
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   838
        MUST_HAVE(MOJOSHADER_PROFILE_GLSL, GL_ARB_fragment_shader);
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   839
        MUST_HAVE(MOJOSHADER_PROFILE_GLSL, GL_ARB_shading_language_100);
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   840
    } // else if
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   841
    #endif
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   842
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   843
    else
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   844
    {
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   845
        set_error("unknown or unsupported profile");
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   846
        return 0;
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   847
    } // else
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   848
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   849
    #undef MUST_HAVE
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   850
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   851
    return 1;
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   852
} // valid_profile
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   853
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   854
422
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   855
static const char *profile_priorities[] = {
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   856
#if SUPPORT_PROFILE_GLSL
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   857
    MOJOSHADER_PROFILE_GLSL120,
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   858
    MOJOSHADER_PROFILE_GLSL,
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   859
#endif
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   860
#if SUPPORT_PROFILE_ARB1
431
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   861
    MOJOSHADER_PROFILE_NV4,
422
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   862
    MOJOSHADER_PROFILE_NV3,
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   863
    MOJOSHADER_PROFILE_NV2,
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   864
    MOJOSHADER_PROFILE_ARB1,
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   865
#endif
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   866
};
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   867
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   868
int MOJOSHADER_glAvailableProfiles(void *(*lookup)(const char *fnname),
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   869
                                   const char **profs, const int size)
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   870
{
422
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   871
    int retval = 0;
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   872
    MOJOSHADER_glContext _ctx;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   873
    MOJOSHADER_glContext *current_ctx = ctx;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   874
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   875
    ctx = &_ctx;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   876
    memset(ctx, '\0', sizeof (MOJOSHADER_glContext));
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   877
    load_extensions(lookup);
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   878
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   879
    if (ctx->have_base_opengl)
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   880
    {
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   881
        int i;
422
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   882
        for (i = 0; i < STATICARRAYLEN(profile_priorities); i++)
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   883
        {
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   884
            // !!! FIXME: if Mac OS X <= 10.4, don't ever pick GLSL, even if
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   885
            // !!! FIXME:  the system claims it is available.
422
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   886
            const char *profile = profile_priorities[i];
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   887
            if (valid_profile(profile))
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   888
            {
422
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   889
                if (retval < size)
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   890
                    profs[retval] = profile;
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   891
                retval++;
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   892
            } // if
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   893
        } // for
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   894
    } // if
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   895
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   896
    ctx = current_ctx;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   897
    return retval;
422
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   898
} // MOJOSHADER_glAvailableProfiles
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   899
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   900
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   901
const char *MOJOSHADER_glBestProfile(void *(*lookup)(const char *fnname))
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   902
{
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   903
    const char *prof[STATICARRAYLEN(profile_priorities)];
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   904
    if (MOJOSHADER_glAvailableProfiles(lookup, prof, STATICARRAYLEN(prof)) <= 0)
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   905
    {
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   906
        set_error("no profiles available");
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   907
        return NULL;
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   908
    } // if
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   909
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
   910
    return prof[0];  // profiles are sorted "best" to "worst."
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   911
} // MOJOSHADER_glBestProfile
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   912
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   913
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   914
MOJOSHADER_glContext *MOJOSHADER_glCreateContext(const char *profile,
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   915
                                        void *(*lookup)(const char *fnname),
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   916
                                        MOJOSHADER_malloc m, MOJOSHADER_free f,
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   917
                                        void *d)
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   918
{
249
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   919
    MOJOSHADER_glContext *retval = NULL;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   920
    MOJOSHADER_glContext *current_ctx = ctx;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   921
    ctx = NULL;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   922
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   923
    if (m == NULL) m = internal_malloc;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   924
    if (f == NULL) f = internal_free;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   925
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   926
    ctx = (MOJOSHADER_glContext *) m(sizeof (MOJOSHADER_glContext), d);
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   927
    if (ctx == NULL)
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   928
    {
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   929
        set_error("out of memory");
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   930
        goto init_fail;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   931
    } // if
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   932
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   933
    memset(ctx, '\0', sizeof (MOJOSHADER_glContext));
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   934
    ctx->malloc_fn = m;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   935
    ctx->free_fn = f;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   936
    ctx->malloc_data = d;
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   937
    snprintf(ctx->profile, sizeof (ctx->profile), "%s", profile);
219
61167fc96790 Added MOJOSHADER_glGetError() function, filled in error state.
Ryan C. Gordon <icculus@icculus.org>
parents: 216
diff changeset
   938
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   939
    load_extensions(lookup);
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   940
    if (!valid_profile(profile))
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   941
        goto init_fail;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   942
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   943
    MOJOSHADER_glBindProgram(NULL);
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   944
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   945
    // !!! FIXME: generalize this part.
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   946
    if (profile == NULL) {}
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   947
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   948
#if SUPPORT_PROFILE_GLSL
407
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   949
    else if ( (strcmp(profile, MOJOSHADER_PROFILE_GLSL) == 0) ||
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   950
              (strcmp(profile, MOJOSHADER_PROFILE_GLSL120) == 0) )
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   951
    {
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   952
        ctx->profileMaxUniforms = impl_GLSL_MaxUniforms;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   953
        ctx->profileCompileShader = impl_GLSL_CompileShader;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   954
        ctx->profileDeleteShader = impl_GLSL_DeleteShader;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   955
        ctx->profileDeleteProgram = impl_GLSL_DeleteProgram;
347
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   956
        ctx->profileGetAttribLocation = impl_GLSL_GetAttribLocation;
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   957
        ctx->profileGetUniformLocation = impl_GLSL_GetUniformLocation;
347
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   958
        ctx->profileGetSamplerLocation = impl_GLSL_GetSamplerLocation;
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   959
        ctx->profileLinkProgram = impl_GLSL_LinkProgram;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   960
        ctx->profileUseProgramObject = impl_GLSL_UseProgramObject;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   961
        ctx->profileUniform4fv = impl_GLSL_Uniform4fv;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   962
        ctx->profileUniform4iv = impl_GLSL_Uniform4iv;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   963
        ctx->profileUniform1i = impl_GLSL_Uniform1i;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   964
        ctx->profileSetSampler = impl_GLSL_SetSampler;
438
73492129c1af Expose true constant arrays in parseData, load them at link time for GLSL.
Ryan C. Gordon <icculus@icculus.org>
parents: 436
diff changeset
   965
        ctx->profileMustLoadConstantArrays = impl_GLSL_MustLoadConstantArrays;
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   966
    } // if
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   967
#endif
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   968
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   969
#if SUPPORT_PROFILE_ARB1
361
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
   970
    else if ( (strcmp(profile, MOJOSHADER_PROFILE_ARB1) == 0) ||
421
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
   971
              (strcmp(profile, MOJOSHADER_PROFILE_NV2) == 0) ||
431
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   972
              (strcmp(profile, MOJOSHADER_PROFILE_NV3) == 0) ||
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   973
              (strcmp(profile, MOJOSHADER_PROFILE_NV4) == 0) )
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   974
    {
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   975
        ctx->profileMaxUniforms = impl_ARB1_MaxUniforms;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   976
        ctx->profileCompileShader = impl_ARB1_CompileShader;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   977
        ctx->profileDeleteShader = impl_ARB1_DeleteShader;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   978
        ctx->profileDeleteProgram = impl_ARB1_DeleteProgram;
347
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   979
        ctx->profileGetAttribLocation = impl_ARB1_GetAttribLocation;
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   980
        ctx->profileGetUniformLocation = impl_ARB1_GetUniformLocation;
347
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   981
        ctx->profileGetSamplerLocation = impl_ARB1_GetSamplerLocation;
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   982
        ctx->profileLinkProgram = impl_ARB1_LinkProgram;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   983
        ctx->profileUseProgramObject = impl_ARB1_UseProgramObject;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   984
        ctx->profileUniform4fv = impl_ARB1_Uniform4fv;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   985
        ctx->profileUniform4iv = impl_ARB1_Uniform4iv;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   986
        ctx->profileUniform1i = impl_ARB1_Uniform1i;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   987
        ctx->profileSetSampler = impl_ARB1_SetSampler;
438
73492129c1af Expose true constant arrays in parseData, load them at link time for GLSL.
Ryan C. Gordon <icculus@icculus.org>
parents: 436
diff changeset
   988
        ctx->profileMustLoadConstantArrays = impl_ARB1_MustLoadConstantArrays;
431
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   989
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   990
        // GL_NV_gpu_program4 has integer uniform loading support.
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   991
        if (strcmp(profile, MOJOSHADER_PROFILE_NV4) == 0)
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   992
        {
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   993
            ctx->profileUniform4iv = impl_NV4_Uniform4iv;
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   994
            ctx->profileUniform1i = impl_NV4_Uniform1i;
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   995
        } // if
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   996
    } // if
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   997
#endif
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   998
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   999
    assert(ctx->profileMaxUniforms != NULL);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
  1000
    assert(ctx->profileCompileShader != NULL);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
  1001
    assert(ctx->profileDeleteShader != NULL);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
  1002
    assert(ctx->profileDeleteProgram != NULL);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1003
    assert(ctx->profileMaxUniforms != NULL);
347
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
  1004
    assert(ctx->profileGetAttribLocation != NULL);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1005
    assert(ctx->profileGetUniformLocation != NULL);
347
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
  1006
    assert(ctx->profileGetSamplerLocation != NULL);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1007
    assert(ctx->profileLinkProgram != NULL);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1008
    assert(ctx->profileUseProgramObject != NULL);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1009
    assert(ctx->profileUniform4fv != NULL);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1010
    assert(ctx->profileUniform4iv != NULL);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1011
    assert(ctx->profileUniform1i != NULL);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1012
    assert(ctx->profileSetSampler != NULL);
438
73492129c1af Expose true constant arrays in parseData, load them at link time for GLSL.
Ryan C. Gordon <icculus@icculus.org>
parents: 436
diff changeset
  1013
    assert(ctx->profileMustLoadConstantArrays != NULL);
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
  1014
249
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
  1015
    retval = ctx;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
  1016
    ctx = current_ctx;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
  1017
    return retval;
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
  1018
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
  1019
init_fail:
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
  1020
    if (ctx != NULL)
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
  1021
        f(ctx, d);
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
  1022
    ctx = current_ctx;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
  1023
    return NULL;
238
e98f14da2897 Renamed glInit and glDeinit to glCreateContext and glDestroyContext.
Ryan C. Gordon <icculus@icculus.org>
parents: 237
diff changeset
  1024
} // MOJOSHADER_glCreateContext
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1025
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1026
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
  1027
void MOJOSHADER_glMakeContextCurrent(MOJOSHADER_glContext *_ctx)
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
  1028
{
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
  1029
    ctx = _ctx;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
  1030
} // MOJOSHADER_glMakeContextCurrent
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
  1031
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
  1032
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
  1033
int MOJOSHADER_glMaxUniforms(MOJOSHADER_shaderType shader_type)
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
  1034
{
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
  1035
    return ctx->profileMaxUniforms(shader_type);
276
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
  1036
} // MOJOSHADER_glMaxUniforms
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
  1037
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
  1038
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1039
MOJOSHADER_glShader *MOJOSHADER_glCompileShader(const unsigned char *tokenbuf,
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1040
                                                const unsigned int bufsize)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1041
{
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1042
    MOJOSHADER_glShader *retval = NULL;
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
  1043
    GLuint shader = 0;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
  1044
    const MOJOSHADER_parseData *pd = MOJOSHADER_parse(ctx->profile, tokenbuf,
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
  1045
                                                      bufsize, ctx->malloc_fn,
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
  1046
                                                      ctx->free_fn,
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
  1047
                                                      ctx->malloc_data);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1048
    if (pd->error != NULL)
219
61167fc96790 Added MOJOSHADER_glGetError() function, filled in error state.
Ryan C. Gordon <icculus@icculus.org>
parents: 216
diff changeset
  1049
    {
61167fc96790 Added MOJOSHADER_glGetError() function, filled in error state.
Ryan C. Gordon <icculus@icculus.org>
parents: 216
diff changeset
  1050
        set_error(pd->error);
207
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
  1051
        goto compile_shader_fail;
219
61167fc96790 Added MOJOSHADER_glGetError() function, filled in error state.
Ryan C. Gordon <icculus@icculus.org>
parents: 216
diff changeset
  1052
    } // if
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1053
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1054
    retval = (MOJOSHADER_glShader *) Malloc(sizeof (MOJOSHADER_glShader));
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1055
    if (retval == NULL)
207
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
  1056
        goto compile_shader_fail;
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
  1057
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
  1058
    if (!ctx->profileCompileShader(pd, &shader))
207
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
  1059
        goto compile_shader_fail;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1060
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1061
    retval->parseData = pd;
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1062
    retval->handle = shader;
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1063
    retval->refcount = 1;
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1064
    return retval;
207
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
  1065
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
  1066
compile_shader_fail:
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
  1067
    MOJOSHADER_freeParseData(pd);
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
  1068
    Free(retval);
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
  1069
    if (shader != 0)
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
  1070
        ctx->profileDeleteShader(shader);
207
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
  1071
    return NULL;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1072
} // MOJOSHADER_glCompileShader
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1073
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1074
245
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
  1075
const MOJOSHADER_parseData *MOJOSHADER_glGetShaderParseData(
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
  1076
                                                MOJOSHADER_glShader *shader)
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
  1077
{
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
  1078
    return (shader != NULL) ? shader->parseData : NULL;
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
  1079
} // MOJOSHADER_glGetShaderParseData
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
  1080
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
  1081
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1082
static void shader_unref(MOJOSHADER_glShader *shader)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1083
{
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1084
    if (shader != NULL)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1085
    {
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
  1086
        const uint32 refcount = shader->refcount;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1087
        if (refcount > 1)
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
  1088
            shader->refcount--;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1089
        else
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1090
        {
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
  1091
            ctx->profileDeleteShader(shader->handle);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1092
            MOJOSHADER_freeParseData(shader->parseData);
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1093
            Free(shader);
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1094
        } // else
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1095
    } // if
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1096
} // shader_unref
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1097
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1098
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1099
static void program_unref(MOJOSHADER_glProgram *program)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1100
{
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents: