mojoshader_opengl.c
author Ryan C. Gordon <icculus@icculus.org>
Sat, 14 Jun 2008 22:15:40 -0400
branchtrunk
changeset 358 f63e18cf642f
parent 355 f42ca594e366
child 359 969805f41dba
permissions -rw-r--r--
Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!). Forgot to actually glEnable() the GPU program functionality. Doh! Now arb1 renders...surprisingly well.
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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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#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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// 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 unsigned __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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} 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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} 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 constant_count;  // !!! FIXME: misnamed.
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    GLfloat *constants;  // !!! FIXME: misnamed.
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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];
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    GLuint sampler_reg_file[16];
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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;
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    char profile[16];
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    // Extensions...
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    int have_base_opengl;
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    int have_GL_ARB_vertex_program;
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    int have_GL_ARB_fragment_program;
237
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    int have_GL_ARB_shader_objects;
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    int have_GL_ARB_vertex_shader;
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    int have_GL_ARB_fragment_shader;
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    int have_GL_ARB_shading_language_100;
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    int have_GL_NV_half_float;
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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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    PFNGLPROGRAMENVPARAMETER4FVARBPROC glProgramEnvParameter4fvARB;
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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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};
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// predeclare some profile implementation stuff...
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static int impl_GLSL_MaxUniforms(MOJOSHADER_shaderType shader_type);
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static int impl_GLSL_CompileShader(const MOJOSHADER_parseData *pd, GLuint *s);
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static void impl_GLSL_DeleteShader(const GLuint shader);
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static void impl_GLSL_DeleteProgram(const GLuint program);
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static GLint impl_GLSL_GetAttribLocation(MOJOSHADER_glProgram *, int);
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static GLint impl_GLSL_GetUniformLocation(MOJOSHADER_glProgram *, MOJOSHADER_glShader *, int);
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static GLint impl_GLSL_GetSamplerLocation(MOJOSHADER_glProgram *, MOJOSHADER_glShader *, int);
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static GLuint impl_GLSL_LinkProgram(MOJOSHADER_glShader *, MOJOSHADER_glShader *);
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static void impl_GLSL_UseProgramObject(MOJOSHADER_glProgram *program);
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static void impl_GLSL_Uniform4fv(const MOJOSHADER_parseData *pd, GLint loc, GLsizei siz, GLfloat *v);
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static void impl_GLSL_Uniform4iv(const MOJOSHADER_parseData *pd, GLint loc, GLsizei siz, GLint *v);
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static void impl_GLSL_Uniform1i(const MOJOSHADER_parseData *pd, GLint loc, GLint v);
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static void impl_GLSL_SetSampler(GLint loc, GLuint sampler);
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static int impl_ARB1_MaxUniforms(MOJOSHADER_shaderType shader_type);
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static int impl_ARB1_CompileShader(const MOJOSHADER_parseData *pd, GLuint *s);
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static void impl_ARB1_DeleteShader(const GLuint shader);
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static void impl_ARB1_DeleteProgram(const GLuint program);
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static GLint impl_ARB1_GetAttribLocation(MOJOSHADER_glProgram *, int);
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static GLint impl_ARB1_GetUniformLocation(MOJOSHADER_glProgram *, MOJOSHADER_glShader *, int);
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static GLint impl_ARB1_GetSamplerLocation(MOJOSHADER_glProgram *, MOJOSHADER_glShader *, int);
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static GLuint impl_ARB1_LinkProgram(MOJOSHADER_glShader *, MOJOSHADER_glShader *);
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static void impl_ARB1_UseProgramObject(MOJOSHADER_glProgram *program);
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static void impl_ARB1_Uniform4fv(const MOJOSHADER_parseData *pd, GLint loc, GLsizei siz, GLfloat *v);
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static void impl_ARB1_Uniform4iv(const MOJOSHADER_parseData *pd, GLint loc, GLsizei siz, GLint *v);
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static void impl_ARB1_Uniform1i(const MOJOSHADER_parseData *pd, GLint loc, GLint v);
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static void impl_ARB1_SetSampler(GLint loc, GLuint sampler);
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237
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static MOJOSHADER_glContext *ctx = NULL;
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67a3d459d865 OpenGL extension lookup and entry point loading.
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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);
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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)
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        ctx->free_fn(ptr, ctx->malloc_data);
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} // Free
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const char *MOJOSHADER_glGetError(void)
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{
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    return error_buffer;
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   259
} // MOJOSHADER_glGetError
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61167fc96790 Added MOJOSHADER_glGetError() function, filled in error state.
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358
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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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f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
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229
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static void *loadsym(void *(*lookup)(const char *fn), const char *fn, int *ext)
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{
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    void *retval = NULL;
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    if (lookup != NULL)
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    {
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        retval = lookup(fn);
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        if (retval == NULL)
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        {
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            char arbfn[64];
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            snprintf(arbfn, sizeof (arbfn), "%sARB", fn);
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            retval = lookup(arbfn);
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        } // if
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    } // if
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    if (retval == NULL)
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        *ext = 0;
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    return retval;
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   289
} // loadsym
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static void lookup_entry_points(void *(*lookup)(const char *fnname))
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{
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
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    #define DO_LOOKUP(ext, typ, fn) ctx->fn = (typ) loadsym(lookup, #fn, &ctx->have_##ext)
229
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    DO_LOOKUP(base_opengl, PFNGLGETSTRINGPROC, glGetString);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
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    DO_LOOKUP(base_opengl, PFNGLGETERRORPROC, glGetError);
276
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
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    DO_LOOKUP(base_opengl, PFNGLGETINTEGERVPROC, glGetIntegerv);
358
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
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    DO_LOOKUP(base_opengl, PFNGLENABLEPROC, glEnable);
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    DO_LOOKUP(base_opengl, PFNGLDISABLEPROC, glDisable);
229
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    DO_LOOKUP(GL_ARB_shader_objects, PFNGLDELETEOBJECTARBPROC, glDeleteObject);
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    DO_LOOKUP(GL_ARB_shader_objects, PFNGLATTACHOBJECTARBPROC, glAttachObject);
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    DO_LOOKUP(GL_ARB_shader_objects, PFNGLCOMPILESHADERARBPROC, glCompileShader);
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    DO_LOOKUP(GL_ARB_shader_objects, PFNGLCREATEPROGRAMOBJECTARBPROC, glCreateProgramObject);
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    DO_LOOKUP(GL_ARB_shader_objects, PFNGLCREATESHADEROBJECTARBPROC, glCreateShaderObject);
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    DO_LOOKUP(GL_ARB_shader_objects, PFNGLGETINFOLOGARBPROC, glGetInfoLog);
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    DO_LOOKUP(GL_ARB_shader_objects, PFNGLGETOBJECTPARAMETERIVARBPROC, glGetObjectParameteriv);
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    DO_LOOKUP(GL_ARB_shader_objects, PFNGLGETUNIFORMLOCATIONARBPROC, glGetUniformLocation);
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    DO_LOOKUP(GL_ARB_shader_objects, PFNGLLINKPROGRAMARBPROC, glLinkProgram);
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    DO_LOOKUP(GL_ARB_shader_objects, PFNGLSHADERSOURCEARBPROC, glShaderSource);
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    DO_LOOKUP(GL_ARB_shader_objects, PFNGLUNIFORM1IARBPROC, glUniform1i);
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    DO_LOOKUP(GL_ARB_shader_objects, PFNGLUNIFORM4FVARBPROC, glUniform4fv);
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    DO_LOOKUP(GL_ARB_shader_objects, PFNGLUNIFORM4IVARBPROC, glUniform4iv);
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    DO_LOOKUP(GL_ARB_shader_objects, PFNGLUSEPROGRAMOBJECTARBPROC, glUseProgramObject);
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    DO_LOOKUP(GL_ARB_vertex_shader, PFNGLDISABLEVERTEXATTRIBARRAYARBPROC, glDisableVertexAttribArray);
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    DO_LOOKUP(GL_ARB_vertex_shader, PFNGLENABLEVERTEXATTRIBARRAYARBPROC, glEnableVertexAttribArray);
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    DO_LOOKUP(GL_ARB_vertex_shader, PFNGLGETATTRIBLOCATIONARBPROC, glGetAttribLocation);
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    DO_LOOKUP(GL_ARB_vertex_shader, PFNGLVERTEXATTRIBPOINTERARBPROC, glVertexAttribPointer);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
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    DO_LOOKUP(GL_ARB_vertex_program, PFNGLUSEPROGRAMOBJECTARBPROC, glUseProgramObject);
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    DO_LOOKUP(GL_ARB_vertex_program, PFNGLVERTEXATTRIBPOINTERARBPROC, glVertexAttribPointer);
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diff changeset
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    DO_LOOKUP(GL_ARB_vertex_program, PFNGLGETPROGRAMIVARBPROC, glGetProgramivARB);
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    DO_LOOKUP(GL_ARB_vertex_program, PFNGLGETPROGRAMSTRINGARBPROC, glGetProgramStringARB);
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   321
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLPROGRAMENVPARAMETER4FVARBPROC, glProgramEnvParameter4fvARB);
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    DO_LOOKUP(GL_ARB_vertex_program, PFNGLDELETEPROGRAMSARBPROC, glDeleteProgramsARB);
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   323
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLGENPROGRAMSARBPROC, glGenProgramsARB);
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   324
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLBINDPROGRAMARBPROC, glBindProgramARB);
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   325
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLPROGRAMSTRINGARBPROC, glProgramStringARB);
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diff changeset
   326
229
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   327
    #undef DO_LOOKUP
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   328
} // lookup_entry_points
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   329
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   330
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   331
static int verify_extension(const char *ext, int have, const char *extlist,
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   332
                            int major, int minor)
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   333
{
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   334
    if (have == 0)
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   335
        return 0;  // don't bother checking, we're missing an entry point.
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diff changeset
   336
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
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diff changeset
   337
    else if (!ctx->have_base_opengl)
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
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diff changeset
   338
        return 0;  // don't bother checking, we're missing basic functionality.
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
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diff changeset
   339
229
67a3d459d865 OpenGL extension lookup and entry point loading.
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diff changeset
   340
    // See if it's in the spec for this GL implementation's version.
236
8e2fc535b210 Support for half-float attribute arrays.
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diff changeset
   341
    if (major >= 0)
8e2fc535b210 Support for half-float attribute arrays.
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diff changeset
   342
    {
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
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   343
        if ( ((ctx->opengl_major << 16) | (ctx->opengl_minor & 0xFFFF)) >=
236
8e2fc535b210 Support for half-float attribute arrays.
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   344
             ((major << 16) | (minor & 0xFFFF)) )
8e2fc535b210 Support for half-float attribute arrays.
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   345
            return 1;
8e2fc535b210 Support for half-float attribute arrays.
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diff changeset
   346
    } // if
229
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diff changeset
   347
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   348
    // Not available in the GL version, check the extension list.
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diff changeset
   349
    const char *ptr = strstr(extlist, ext);
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diff changeset
   350
    if (ptr == NULL)
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   351
        return 0;
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diff changeset
   352
67a3d459d865 OpenGL extension lookup and entry point loading.
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diff changeset
   353
    const char endchar = ptr[strlen(ext)];
67a3d459d865 OpenGL extension lookup and entry point loading.
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diff changeset
   354
    if ((endchar == '\0') || (endchar == ' '))
67a3d459d865 OpenGL extension lookup and entry point loading.
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diff changeset
   355
        return 1;  // extension is in the list.
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diff changeset
   356
67a3d459d865 OpenGL extension lookup and entry point loading.
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diff changeset
   357
    return 0;  // just not supported, fail.
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diff changeset
   358
} // verify_extension
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   359
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   360
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   361
static void parse_opengl_version(const char *verstr)
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   362
{
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   363
    if (verstr == NULL)
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
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   364
        ctx->opengl_major = ctx->opengl_minor = 0;
229
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diff changeset
   365
    else
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
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   366
        sscanf(verstr, "%d.%d", &ctx->opengl_major, &ctx->opengl_minor);
229
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diff changeset
   367
} // parse_opengl_version
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diff changeset
   368
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diff changeset
   369
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
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   370
static void load_extensions(void *(*lookup)(const char *fnname))
229
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   371
{
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
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diff changeset
   372
    const char *extlist = NULL;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
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diff changeset
   373
237
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Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   374
    ctx->have_base_opengl = 1;
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   375
    ctx->have_GL_ARB_vertex_program = 1;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   376
    ctx->have_GL_ARB_fragment_program = 1;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   377
    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
   378
    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
   379
    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
   380
    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
   381
    ctx->have_GL_NV_half_float = 1;
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   382
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   383
    lookup_entry_points(lookup);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   384
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   385
    if (!ctx->have_base_opengl)
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   386
        set_error("missing basic OpenGL entry points");
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   387
    else
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   388
    {
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   389
        parse_opengl_version((const char *) ctx->glGetString(GL_VERSION));
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   390
        extlist = (const char *) ctx->glGetString(GL_EXTENSIONS);
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   391
    } // else
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   392
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   393
    if (extlist == NULL)
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   394
        extlist = "";  // just in case.
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   395
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   396
    #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
   397
        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
   398
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   399
    VERIFY_EXT(GL_ARB_vertex_program, -1, -1);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   400
    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
   401
    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
   402
    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
   403
    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
   404
    VERIFY_EXT(GL_ARB_shading_language_100, 2, 0);
236
8e2fc535b210 Support for half-float attribute arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 230
diff changeset
   405
    VERIFY_EXT(GL_NV_half_float, -1, -1);
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   406
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   407
    #undef VERIFY_EXT
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   408
} // load_extensions
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   409
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   410
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   411
static int valid_profile(const char *profile)
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   412
{
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   413
    if (!ctx->have_base_opengl)
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   414
        return 0;
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   415
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   416
    #define MUST_HAVE(p, x) \
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   417
        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
   418
291
2453590bae1b Fix/disable annoying Visual C++ level 4 warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 285
diff changeset
   419
    if (profile == NULL)
2453590bae1b Fix/disable annoying Visual C++ level 4 warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 285
diff changeset
   420
    {
2453590bae1b Fix/disable annoying Visual C++ level 4 warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 285
diff changeset
   421
        set_error("NULL profile");
2453590bae1b Fix/disable annoying Visual C++ level 4 warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 285
diff changeset
   422
        return 0;
2453590bae1b Fix/disable annoying Visual C++ level 4 warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 285
diff changeset
   423
    } // if
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   424
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   425
    #if SUPPORT_PROFILE_ARB1
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   426
    else if (strcmp(profile, MOJOSHADER_PROFILE_ARB1) == 0)
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   427
    {
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   428
        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
   429
        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
   430
    } // else if
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   431
    #endif
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   432
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   433
    #if SUPPORT_PROFILE_GLSL
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   434
    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
   435
    {
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   436
        MUST_HAVE(MOJOSHADER_PROFILE_GLSL, GL_ARB_shader_objects);
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   437
        MUST_HAVE(MOJOSHADER_PROFILE_GLSL, GL_ARB_vertex_shader);
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   438
        MUST_HAVE(MOJOSHADER_PROFILE_GLSL, GL_ARB_fragment_shader);
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   439
        MUST_HAVE(MOJOSHADER_PROFILE_GLSL, GL_ARB_shading_language_100);
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   440
    } // else if
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   441
    #endif
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   442
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   443
    else
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   444
    {
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   445
        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
   446
        return 0;
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   447
    } // else
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   448
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   449
    #undef MUST_HAVE
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   450
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   451
    return 1;
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   452
} // valid_profile
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   453
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   454
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   455
const char *MOJOSHADER_glBestProfile(void *(*lookup)(const char *fnname))
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   456
{
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   457
    const char *retval = NULL;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   458
    MOJOSHADER_glContext _ctx;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   459
    MOJOSHADER_glContext *current_ctx = ctx;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   460
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   461
    ctx = &_ctx;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   462
    memset(ctx, '\0', sizeof (MOJOSHADER_glContext));
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   463
    load_extensions(lookup);
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   464
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   465
    if (ctx->have_base_opengl)
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   466
    {
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   467
        static const char *priority[] = {
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   468
            MOJOSHADER_PROFILE_GLSL,
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   469
            MOJOSHADER_PROFILE_ARB1,
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   470
        };
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   471
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   472
        int i;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   473
        for (i = 0; i < STATICARRAYLEN(priority); i++)
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   474
        {
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   475
            // !!! 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
   476
            // !!! FIXME:  the system claims it is available.
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   477
            if (valid_profile(priority[i]))
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   478
            {
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   479
                retval = priority[i];
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   480
                break;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   481
            } // if
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   482
        } // for
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   483
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   484
        if (retval == NULL)
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   485
            set_error("no profiles available");
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   486
    } // if
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   487
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   488
    ctx = current_ctx;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   489
    return retval;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   490
} // MOJOSHADER_glBestProfile
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   491
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   492
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   493
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
   494
                                        void *(*lookup)(const char *fnname),
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   495
                                        MOJOSHADER_malloc m, MOJOSHADER_free f,
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   496
                                        void *d)
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   497
{
249
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   498
    MOJOSHADER_glContext *retval = NULL;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   499
    MOJOSHADER_glContext *current_ctx = ctx;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   500
    ctx = NULL;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   501
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   502
    if (m == NULL) m = internal_malloc;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   503
    if (f == NULL) f = internal_free;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   504
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   505
    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
   506
    if (ctx == NULL)
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   507
    {
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   508
        set_error("out of memory");
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   509
        goto init_fail;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   510
    } // if
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   511
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   512
    memset(ctx, '\0', sizeof (MOJOSHADER_glContext));
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   513
    ctx->malloc_fn = m;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   514
    ctx->free_fn = f;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   515
    ctx->malloc_data = d;
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   516
    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
   517
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   518
    load_extensions(lookup);
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   519
    if (!valid_profile(profile))
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   520
        goto init_fail;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   521
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   522
    MOJOSHADER_glBindProgram(NULL);
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   523
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   524
    // !!! FIXME: generalize this part.
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   525
    if (profile == NULL) {}
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   526
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   527
#if SUPPORT_PROFILE_GLSL
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   528
    else if (strcmp(profile, MOJOSHADER_PROFILE_GLSL) == 0)
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   529
    {
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   530
        ctx->profileMaxUniforms = impl_GLSL_MaxUniforms;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   531
        ctx->profileCompileShader = impl_GLSL_CompileShader;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   532
        ctx->profileDeleteShader = impl_GLSL_DeleteShader;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   533
        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
   534
        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
   535
        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
   536
        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
   537
        ctx->profileLinkProgram = impl_GLSL_LinkProgram;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   538
        ctx->profileUseProgramObject = impl_GLSL_UseProgramObject;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   539
        ctx->profileUniform4fv = impl_GLSL_Uniform4fv;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   540
        ctx->profileUniform4iv = impl_GLSL_Uniform4iv;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   541
        ctx->profileUniform1i = impl_GLSL_Uniform1i;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   542
        ctx->profileSetSampler = impl_GLSL_SetSampler;
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   543
    } // if
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   544
#endif
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   545
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   546
#if SUPPORT_PROFILE_ARB1
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   547
    else if (strcmp(profile, MOJOSHADER_PROFILE_ARB1) == 0)
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   548
    {
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   549
        ctx->profileMaxUniforms = impl_ARB1_MaxUniforms;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   550
        ctx->profileCompileShader = impl_ARB1_CompileShader;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   551
        ctx->profileDeleteShader = impl_ARB1_DeleteShader;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   552
        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
   553
        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
   554
        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
   555
        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
   556
        ctx->profileLinkProgram = impl_ARB1_LinkProgram;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   557
        ctx->profileUseProgramObject = impl_ARB1_UseProgramObject;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   558
        ctx->profileUniform4fv = impl_ARB1_Uniform4fv;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   559
        ctx->profileUniform4iv = impl_ARB1_Uniform4iv;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   560
        ctx->profileUniform1i = impl_ARB1_Uniform1i;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   561
        ctx->profileSetSampler = impl_ARB1_SetSampler;
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   562
    } // if
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   563
#endif
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   564
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   565
    assert(ctx->profileMaxUniforms != NULL);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   566
    assert(ctx->profileCompileShader != NULL);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   567
    assert(ctx->profileDeleteShader != NULL);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   568
    assert(ctx->profileDeleteProgram != NULL);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   569
    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
   570
    assert(ctx->profileGetAttribLocation != NULL);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   571
    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
   572
    assert(ctx->profileGetSamplerLocation != NULL);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   573
    assert(ctx->profileLinkProgram != NULL);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   574
    assert(ctx->profileUseProgramObject != NULL);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   575
    assert(ctx->profileUniform4fv != NULL);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   576
    assert(ctx->profileUniform4iv != NULL);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   577
    assert(ctx->profileUniform1i != NULL);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   578
    assert(ctx->profileSetSampler != NULL);
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   579
249
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   580
    retval = ctx;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   581
    ctx = current_ctx;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   582
    return retval;
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   583
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   584
init_fail:
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   585
    if (ctx != NULL)
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   586
        f(ctx, d);
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   587
    ctx = current_ctx;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   588
    return NULL;
238
e98f14da2897 Renamed glInit and glDeinit to glCreateContext and glDestroyContext.
Ryan C. Gordon <icculus@icculus.org>
parents: 237
diff changeset
   589
} // MOJOSHADER_glCreateContext
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   590
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   591
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   592
void MOJOSHADER_glMakeContextCurrent(MOJOSHADER_glContext *_ctx)
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   593
{
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   594
    ctx = _ctx;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   595
} // MOJOSHADER_glMakeContextCurrent
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   596
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   597
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   598
static int impl_GLSL_MaxUniforms(MOJOSHADER_shaderType shader_type)
276
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
   599
{
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
   600
    GLenum pname = GL_NONE;
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
   601
    GLint val = 0;
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
   602
    if (shader_type == MOJOSHADER_TYPE_VERTEX)
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
   603
        pname = GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB;
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
   604
    else if (shader_type == MOJOSHADER_TYPE_PIXEL)
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
   605
        pname = GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB;
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
   606
    else
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
   607
        return -1;
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
   608
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
   609
    ctx->glGetIntegerv(pname, &val);
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
   610
    return (int) val;
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   611
} // impl_GLSL_MaxUniforms
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   612
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   613
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   614
static int impl_ARB1_MaxUniforms(MOJOSHADER_shaderType shader_type)
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   615
{
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   616
    GLint retval = 0;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   617
    GLenum program_type = GL_NONE;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   618
    if (shader_type == MOJOSHADER_TYPE_VERTEX)
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   619
        program_type = GL_VERTEX_PROGRAM_ARB;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   620
    else if (shader_type == MOJOSHADER_TYPE_PIXEL)
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   621
        program_type = GL_FRAGMENT_PROGRAM_ARB;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   622
    else
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   623
        return -1;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   624
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   625
    ctx->glGetProgramivARB(program_type, GL_MAX_PROGRAM_PARAMETERS_ARB, &retval);
358
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   626
    return (int) retval;  // !!! FIXME: times four?
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   627
} // impl_ARB1_MaxUniforms
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   628
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   629
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   630
int MOJOSHADER_glMaxUniforms(MOJOSHADER_shaderType shader_type)
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   631
{
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   632
    return ctx->profileMaxUniforms(shader_type);
276
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
   633
} // MOJOSHADER_glMaxUniforms
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
   634
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
   635
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   636
static int impl_GLSL_CompileShader(const MOJOSHADER_parseData *pd, GLuint *s)
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   637
{
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   638
    GLint ok = 0;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   639
    GLint shaderlen = (GLint) pd->output_len;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   640
    const GLenum shader_type = (pd->shader_type == MOJOSHADER_TYPE_PIXEL) ? GL_FRAGMENT_SHADER : GL_VERTEX_SHADER;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   641
    GLuint shader = ctx->glCreateShaderObject(shader_type);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   642
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   643
    ctx->glShaderSource(shader, 1, (const GLchar **) &pd->output, &shaderlen);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   644
    ctx->glCompileShader(shader);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   645
    ctx->glGetObjectParameteriv(shader, GL_OBJECT_COMPILE_STATUS_ARB, &ok);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   646
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   647
    if (!ok)
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   648
    {
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   649
        GLsizei len = 0;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   650
        ctx->glGetInfoLog(shader, sizeof (error_buffer), &len,
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   651
                          (GLchar *) error_buffer);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   652
        *s = 0;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   653
        return 0;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   654
    } // if
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   655
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   656
    *s = shader;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   657
    return 1;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   658
} // impl_GLSL_CompileShader
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   659
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   660
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   661
static int impl_ARB1_CompileShader(const MOJOSHADER_parseData *pd, GLuint *s)
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   662
{
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   663
    GLint shaderlen = (GLint) pd->output_len;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   664
    const GLenum shader_type = (pd->shader_type == MOJOSHADER_TYPE_PIXEL) ? GL_FRAGMENT_PROGRAM_ARB : GL_VERTEX_PROGRAM_ARB;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   665
    GLuint shader = 0;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   666
    ctx->glGenProgramsARB(1, &shader);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   667
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   668
    ctx->glGetError();  // flush any existing error state.
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   669
    ctx->glBindProgramARB(shader_type, shader);
358
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   670
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   671
#if 0
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   672
    if (shader_type == GL_FRAGMENT_PROGRAM_ARB) {
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   673
        const char *prog =
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   674
            "!!ARBfp1.0\n"
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   675
            "OUTPUT oC0 = result.color;\n"
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   676
            "MOV oC0, { 1.0, 0.0, 0.0, 1.0 };\n"
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   677
            "END\n";
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   678
        ctx->glProgramStringARB(shader_type, GL_PROGRAM_FORMAT_ASCII_ARB,
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   679
                                strlen(prog), prog);
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   680
    } else
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   681
#endif
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   682
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   683
    {
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   684
        ctx->glProgramStringARB(shader_type, GL_PROGRAM_FORMAT_ASCII_ARB,
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   685
                                shaderlen, pd->output);
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   686
    }
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   687
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   688
    if (ctx->glGetError() == GL_INVALID_OPERATION)
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   689
    { 
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   690
        GLint pos = 0;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   691
        ctx->glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &pos);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   692
        const GLubyte *errstr = ctx->glGetString(GL_PROGRAM_ERROR_STRING_ARB);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   693
        snprintf(error_buffer, sizeof (error_buffer),
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   694
                  "ARB1 compile error at position %d: %s",
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   695
                  (int) pos, (const char *) errstr);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   696
        ctx->glBindProgramARB(shader_type, 0);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   697
        ctx->glDeleteProgramsARB(1, &shader);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   698
        *s = 0;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   699
        return 0;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   700
    } // if
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   701
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   702
    *s = shader;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   703
    return 1;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   704
} // impl_ARB1_CompileShader
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   705
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   706
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   707
static void impl_GLSL_DeleteShader(const GLuint shader)
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   708
{
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   709
    ctx->glDeleteObject(shader);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   710
} // impl_GLSL_DeleteShader
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   711
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   712
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   713
static void impl_ARB1_DeleteShader(const GLuint _shader)
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   714
{
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   715
    GLuint shader = _shader;  // const removal.
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   716
    ctx->glDeleteProgramsARB(1, &shader);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   717
} // impl_ARB1_DeleteShader
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   718
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   719
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   720
static void impl_GLSL_DeleteProgram(const GLuint program)
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   721
{
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   722
    ctx->glDeleteObject(program);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   723
} // impl_GLSL_DeleteProgram
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   724
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   725
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   726
static void impl_ARB1_DeleteProgram(const GLuint program)
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   727
{
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   728
    // no-op. ARB1 doesn't have real linked programs.
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   729
} // impl_GLSL_DeleteProgram
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   730
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   731
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   732
MOJOSHADER_glShader *MOJOSHADER_glCompileShader(const unsigned char *tokenbuf,
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   733
                                                const unsigned int bufsize)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   734
{
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   735
    MOJOSHADER_glShader *retval = NULL;
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   736
    GLuint shader = 0;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   737
    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
   738
                                                      bufsize, ctx->malloc_fn,
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   739
                                                      ctx->free_fn,
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   740
                                                      ctx->malloc_data);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   741
    if (pd->error != NULL)
219
61167fc96790 Added MOJOSHADER_glGetError() function, filled in error state.
Ryan C. Gordon <icculus@icculus.org>
parents: 216
diff changeset
   742
    {
61167fc96790 Added MOJOSHADER_glGetError() function, filled in error state.
Ryan C. Gordon <icculus@icculus.org>
parents: 216
diff changeset
   743
        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
   744
        goto compile_shader_fail;
219
61167fc96790 Added MOJOSHADER_glGetError() function, filled in error state.
Ryan C. Gordon <icculus@icculus.org>
parents: 216
diff changeset
   745
    } // if
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   746
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   747
    retval = (MOJOSHADER_glShader *) Malloc(sizeof (MOJOSHADER_glShader));
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   748
    if (retval == NULL)
207
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   749
        goto compile_shader_fail;
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   750
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   751
    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
   752
        goto compile_shader_fail;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   753
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   754
    retval->parseData = pd;
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   755
    retval->handle = shader;
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   756
    retval->refcount = 1;
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   757
    return retval;
207
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   758
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   759
compile_shader_fail:
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   760
    MOJOSHADER_freeParseData(pd);
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   761
    Free(retval);
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   762
    if (shader != 0)
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   763
        ctx->profileDeleteShader(shader);
207
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   764
    return NULL;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   765
} // MOJOSHADER_glCompileShader
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   766
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   767
245
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
   768
const MOJOSHADER_parseData *MOJOSHADER_glGetShaderParseData(
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
   769
                                                MOJOSHADER_glShader *shader)
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
   770
{
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
   771
    return (shader != NULL) ? shader->parseData : NULL;
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
   772
} // MOJOSHADER_glGetShaderParseData
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
   773
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
   774
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   775
static void shader_unref(MOJOSHADER_glShader *shader)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   776
{
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   777
    if (shader != NULL)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   778
    {
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
   779
        const uint32 refcount = shader->refcount;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   780
        if (refcount > 1)
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
   781
            shader->refcount--;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   782
        else
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   783
        {
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   784
            ctx->profileDeleteShader(shader->handle);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   785
            MOJOSHADER_freeParseData(shader->parseData);
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   786
            Free(shader);
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   787
        } // else
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   788
    } // if
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   789
} // shader_unref
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   790
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   791
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   792
static void program_unref(MOJOSHADER_glProgram *program)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   793
{
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   794
    if (program != NULL)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   795
    {
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   796
        const uint32 refcount = program->refcount;
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   797
        if (refcount > 1)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   798
            program->refcount--;
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   799
        else
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   800
        {
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   801
            ctx->profileDeleteProgram(program->handle);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   802
            shader_unref(program->vertex);
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   803
            shader_unref(program->fragment);
284
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   804
            Free(program->constants);
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   805
            Free(program->samplers);
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   806
            Free(program->uniforms);
284
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   807
            Free(program->attributes);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   808
            Free(program);
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   809
        } // else
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   810
    } // if
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   811
} // program_unref
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   812
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   813
347
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   814
static GLint impl_GLSL_GetUniformLocation(MOJOSHADER_glProgram *program,
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   815
                                          MOJOSHADER_glShader *shader, int idx)
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   816
{
347
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   817
    return ctx->glGetUniformLocation(program->handle,
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   818
                                     shader->parseData->uniforms[idx].name);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   819
} // impl_GLSL_GetUniformLocation
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   820
347
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   821
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   822
static GLint impl_ARB1_GetUniformLocation(MOJOSHADER_glProgram *program,
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   823
                                          MOJOSHADER_glShader *shader, int idx)
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   824
{
347
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   825
    assert(shader->parseData->uniforms[idx].type == MOJOSHADER_UNIFORM_FLOAT);
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   826
    return shader->parseData->uniforms[idx].index;  // !!! FIXME: doesn't work if there are int or bool uniforms!
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   827
} // impl_ARB1_GetUniformLocation
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   828
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   829
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   830
static void lookup_uniforms(MOJOSHADER_glProgram *program,
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   831
                            MOJOSHADER_glShader *shader)
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   832
{
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   833
    const MOJOSHADER_parseData *pd = shader->parseData;
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
   834
    const MOJOSHADER_uniform *u = pd->uniforms;
206
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   835
    const MOJOSHADER_shaderType shader_type = pd->shader_type;
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   836
    int i;
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   837
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   838
    for (i = 0; i < pd->uniform_count; i++)
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   839
    {
347
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   840
        const GLint loc = ctx->profileGetUniformLocation(program, shader, i);
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   841
        if (loc != -1)  // maybe the Uniform was optimized out?
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   842
        {
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   843
            UniformMap *map = &program->uniforms[program->uniform_count];
206
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   844
            map->shader_type = shader_type;
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   845
            map->uniform = &u[i];
215
f2e508f08997 Fixed wrong type for uniform/attribute locations.
Ryan C. Gordon <icculus@icculus.org>
parents: 213
diff changeset
   846
            map->location = (GLuint) loc;
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   847
            program->uniform_count++;
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   848
        } // if
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   849
    } // for
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   850
} // lookup_uniforms
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   851
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   852
347
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   853
static GLint impl_GLSL_GetSamplerLocation(MOJOSHADER_glProgram *program,
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   854
                                          MOJOSHADER_glShader *shader, int idx)
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   855
{
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   856
    return ctx->glGetUniformLocation(program->handle,
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   857
                                     shader->parseData->samplers[idx].name);
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   858
} // impl_GLSL_GetSamplerLocation
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   859
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   860
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   861
static GLint impl_ARB1_GetSamplerLocation(MOJOSHADER_glProgram *program,
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   862
                                          MOJOSHADER_glShader *shader, int idx)
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   863
{
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   864
    return shader->parseData->samplers[idx].index;
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   865
} // impl_ARB1_GetSamplerLocation
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   866
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   867
284
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   868
static void lookup_samplers(MOJOSHADER_glProgram *program,
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   869
                            MOJOSHADER_glShader *shader)
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   870
{
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   871
    int i;
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   872
    const MOJOSHADER_parseData *pd = shader->parseData;
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   873
    const MOJOSHADER_sampler *s = pd->samplers;
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   874
    const MOJOSHADER_shaderType shader_type = pd->shader_type;
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   875
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   876
    for (i = 0; i < pd->sampler_count; i++)
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   877
    {
347
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   878
        const GLint loc = ctx->profileGetSamplerLocation(program, shader, i);
284
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   879
        if (loc != -1)  // maybe the Sampler was optimized out?
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   880
        {
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   881
            SamplerMap *map = &program->samplers[program->sampler_count];
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   882
            map->shader_type = shader_type;
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   883
            map->sampler = &s[i];
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   884
            map->location = (GLuint) loc;
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   885
            program->sampler_count++;
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   886
        } // if
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   887
    } // for
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   888
} // lookup_samplers
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   889
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   890
347
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   891
static GLint impl_GLSL_GetAttribLocation(MOJOSHADER_glProgram *program, int idx)
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   892
{
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   893
    const MOJOSHADER_parseData *pd = program->vertex->parseData;
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   894
    const MOJOSHADER_attribute *a = pd->attributes;
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   895
    return ctx->glGetAttribLocation(program->handle, a[idx].name);
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   896
} // impl_GLSL_GetAttribLocation
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   897
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   898
static GLint impl_ARB1_GetAttribLocation(MOJOSHADER_glProgram *program, int idx)
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   899
{
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   900
    return idx;  // map to vertex arrays in the same order as the parseData.
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   901
} // impl_ARB1_GetAttribLocation
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   902
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   903
213
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   904
static void lookup_attributes(MOJOSHADER_glProgram *program)
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   905
{
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   906
    int i;
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   907
    const MOJOSHADER_parseData *pd = program->vertex->parseData;
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
   908
    const MOJOSHADER_attribute *a = pd->attributes;
213
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   909
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   910
    for (i = 0; i < pd->attribute_count; i++)
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   911
    {
347
f8d9d0ae6ba8 Bunch more work (ARB1 profile, OpenGL glue, and general fixes).
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   912
        const GLint loc = ctx->profileGetAttribLocation(program, i);
213
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   913
        if (loc != -1)  // maybe the Attribute was optimized out?
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   914
        {
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   915
            AttributeMap *map = &program->attributes[program->attribute_count];
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   916
            map->attribute = &a[i];
215
f2e508f08997 Fixed wrong type for uniform/attribute locations.
Ryan C. Gordon <icculus@icculus.org>
parents: 213
diff changeset
   917
            map->location = (GLuint) loc;
213
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   918
            program->attribute_count++;
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   919
        } // if
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   920
    } // for
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   921
} // lookup_attributes
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   922
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   923
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   924
static GLuint impl_GLSL_LinkProgram(MOJOSHADER_glShader *vshader,
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   925
                                    MOJOSHADER_glShader *pshader)
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   926
{
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   927
    const GLuint program = ctx->glCreateProgramObject();
209
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   928
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   929
    if (vshader != NULL) ctx->glAttachObject(program, vshader->handle);
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   930
    if (pshader != NULL) ctx->glAttachObject(program, pshader->handle);
209
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   931
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   932
    ctx->glLinkProgram(program);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   933
209
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   934
    GLint ok = 0;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   935
    ctx->glGetObjectParameteriv(program, GL_OBJECT_LINK_STATUS_ARB, &ok);
209
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   936
    if (!ok)
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   937
    {
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   938
        GLsizei len = 0;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   939
        ctx->glGetInfoLog(program, sizeof (error_buffer), &len, (GLchar *) error_buffer);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   940
        ctx->glDeleteObject(program);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   941
        return 0;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   942
    } // if
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   943
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   944
    return program;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   945
} // impl_GLSL_LinkProgram
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   946
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   947
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   948
static GLuint impl_ARB1_LinkProgram(MOJOSHADER_glShader *vshader,
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   949
                                    MOJOSHADER_glShader *pshader)
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   950
{
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   951
    // there is no formal linking in ARB1...just return a unique value.
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   952
    static GLuint retval = 1;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   953
    return retval++;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   954
} // impl_ARB1_LinkProgram
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   955
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   956
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   957
MOJOSHADER_glProgram *MOJOSHADER_glLinkProgram(MOJOSHADER_glShader *vshader,
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   958
                                               MOJOSHADER_glShader *pshader)
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   959
{
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   960
    if ((vshader == NULL) && (pshader == NULL))
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   961
        return NULL;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   962
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   963
    int numregs = 0;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   964
    int consts = 0;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   965
    MOJOSHADER_glProgram *retval = NULL;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   966
    const GLuint program = ctx->profileLinkProgram(vshader, pshader);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   967
    if (program == 0)
209
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   968
        goto link_program_fail;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   969
204
5055ac80916e A little more work on MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 203
diff changeset
   970
    retval = (MOJOSHADER_glProgram *) Malloc(sizeof (MOJOSHADER_glProgram));
5055ac80916e A little more work on MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 203
diff changeset
   971
    if (retval == NULL)
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   972
        goto link_program_fail;
209
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   973
    memset(retval, '\0', sizeof (MOJOSHADER_glProgram));
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   974
284
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   975
    numregs = 0;
209
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   976
    if (vshader != NULL) numregs += vshader->parseData->uniform_count;
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   977
    if (pshader != NULL) numregs += pshader->parseData->uniform_count;
355
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
   978
    if (numregs > 0)
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
   979
    {
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
   980
        const size_t len = sizeof (UniformMap) * numregs;
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
   981
        retval->uniforms = (UniformMap *) Malloc(len);
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
   982
        if (retval->uniforms == NULL)
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
   983
            goto link_program_fail;
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
   984
        memset(retval->uniforms, '\0', len);
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
   985
    } // if
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   986
284
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   987
    numregs = 0;
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   988
    if (vshader != NULL) numregs += vshader->parseData->sampler_count;
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   989
    if (pshader != NULL) numregs += pshader->parseData->sampler_count;
355
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
   990
    if (numregs > 0)
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
   991
    {
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
   992
        const size_t len = sizeof (SamplerMap) * numregs;
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
   993
        retval->samplers = (SamplerMap *) Malloc(len);
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
   994
        if (retval->samplers == NULL)
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
   995
            goto link_program_fail;
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
   996
        memset(retval->samplers, '\0', len);
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
   997
    } // if
284
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
   998
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   999
    retval->handle = program;
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1000
    retval->vertex = vshader;
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1001
    retval->fragment = pshader;
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1002
    retval->refcount = 1;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1003
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1004
    if (vshader != NULL)
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1005
    {
313
f5aa15de1690 Shrunk variable name to fit draconian 80-char standards.
Ryan C. Gordon <icculus@icculus.org>
parents: 312
diff changeset
  1006
        if (consts < vshader->parseData->constant_count)
f5aa15de1690 Shrunk variable name to fit draconian 80-char standards.
Ryan C. Gordon <icculus@icculus.org>
parents: 312
diff changeset
  1007
            consts = vshader->parseData->constant_count;
213
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
  1008
355
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
  1009
        if (vshader->parseData->attribute_count > 0)
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
  1010
        {
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
  1011
            const int count = vshader->parseData->attribute_count;
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
  1012
            const size_t len = sizeof (AttributeMap) * count;
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
  1013
            retval->attributes = (AttributeMap *) Malloc(len);
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
  1014
            if (retval->attributes == NULL)
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
  1015
                goto link_program_fail;
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
  1016
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
  1017
            memset(retval->attributes, '\0', len);
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
  1018
            lookup_attributes(retval);
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
  1019
        } // if
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
  1020
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1021
        lookup_uniforms(retval, vshader);
284
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
  1022
        lookup_samplers(retval, vshader);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1023
        vshader->refcount++;
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1024
    } // if
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1025
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1026
    if (pshader != NULL)
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1027
    {
313
f5aa15de1690 Shrunk variable name to fit draconian 80-char standards.
Ryan C. Gordon <icculus@icculus.org>
parents: 312
diff changeset
  1028
        if (consts < pshader->parseData->constant_count)
f5aa15de1690 Shrunk variable name to fit draconian 80-char standards.
Ryan C. Gordon <icculus@icculus.org>
parents: 312
diff changeset
  1029
            consts = pshader->parseData->constant_count;
281
cb0ee573a33d OpenGL glue now handles Uniform arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 277
diff changeset
  1030
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1031
        lookup_uniforms(retval, pshader);
349
78d4cf1ecf0c Fixed cut-and-paste error (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 347
diff changeset
  1032
        lookup_samplers(retval, pshader);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1033
        pshader->refcount++;
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1034
    } // if
204
5055ac80916e A little more work on MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 203
diff changeset
  1035
313
f5aa15de1690 Shrunk variable name to fit draconian 80-char standards.
Ryan C. Gordon <icculus@icculus.org>
parents: 312
diff changeset
  1036
    if (consts > 0)    
281
cb0ee573a33d OpenGL glue now handles Uniform arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 277
diff changeset
  1037
    {
355
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
  1038
        const size_t len = sizeof (GLfloat) * consts * 4;
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
  1039
        retval->constants = (GLfloat *) Malloc(len);
281
cb0ee573a33d OpenGL glue now handles Uniform arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 277
diff changeset
  1040
        if (retval->constants == NULL)
cb0ee573a33d OpenGL glue now handles Uniform arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 277
diff changeset
  1041
            goto link_program_fail;
313
f5aa15de1690 Shrunk variable name to fit draconian 80-char standards.
Ryan C. Gordon <icculus@icculus.org>
parents: 312
diff changeset
  1042
        retval->constant_count = (uint32) consts;
355
f42ca594e366 Cleaned up memory management in MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 349
diff changeset
  1043
        memset(retval->constants, '\0', len);
281
cb0ee573a33d OpenGL glue now handles Uniform arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 277
diff changeset
  1044
    } // if
cb0ee573a33d OpenGL glue now handles Uniform arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 277
diff changeset
  1045
204
5055ac80916e A little more work on MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 203
diff changeset
  1046
    return retval;
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1047
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1048
link_program_fail:
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1049
    if (retval != NULL)
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1050
    {
284
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
  1051
        Free(retval->constants);
ea52f9707795 Sampler loading support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 281
diff changeset
  1052
        Free(retval->samplers);
213
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
  1053
        Free(retval->uniforms);
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
  1054
        Free(retval->attributes);
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1055
        Free(retval);
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1056
    } // if
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1057
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1058
    if (program != 0)
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1059
        ctx->profileDeleteProgram(program);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1060
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
  1061
    return NULL;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1062
} // MOJOSHADER_glLinkProgram
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1063
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1064
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1065
static void impl_GLSL_UseProgramObject(MOJOSHADER_glProgram *program)
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1066
{
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1067
    ctx->glUseProgramObject((program != NULL) ? program->handle : 0);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1068
} // impl_GLSL_UseProgramObject
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1069
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1070
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1071
static void impl_ARB1_UseProgramObject(MOJOSHADER_glProgram *program)
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1072
{
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1073
    GLuint vhandle = 0;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1074
    GLuint phandle = 0;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1075
    if (program != NULL)
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1076
    {
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1077
        if (program->vertex != NULL)
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1078
            vhandle = program->vertex->handle;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1079
        if (program->fragment != NULL)
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1080
            phandle = program->fragment->handle;
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1081
    } // if
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1082
358
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
  1083
    toggle_gl_state(GL_VERTEX_PROGRAM_ARB, vhandle != 0);
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
  1084
    toggle_gl_state(GL_FRAGMENT_PROGRAM_ARB, phandle != 0);
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
  1085
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1086
    ctx->glBindProgramARB(GL_VERTEX_PROGRAM_ARB, vhandle);
339
4b1e0c45a6b8 Fixed cut-and-paste error.
Ryan C. Gordon <icculus@icculus.org>
parents: 333
diff changeset
  1087
    ctx->glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, phandle);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1088
} // impl_GLSL_UseProgramObject
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1089
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
  1090
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1091
void MOJOSHADER_glBindProgram(MOJOSHADER_glProgram *program)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1092
{
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
  1093
    GLuint handle = 0;
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
  1094
    int i;
223
8df4e9545c87 Disable any enabled client-side arrays when binding a new shader.
Ryan C. Gordon <icculus@icculus.org>
parents: 222
diff changeset
  1095
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
  1096
    if (program == ctx->bound_program)
223
8df4e9545c87 Disable any enabled client-side arrays when binding a new shader.
Ryan C. Gordon <icculus@icculus.org>
parents: 222