mojoshader_opengl.c
author Ryan C. Gordon <icculus@icculus.org>
Tue, 29 Apr 2008 20:46:43 -0400
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Get that typedef, too...
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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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#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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#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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struct MOJOSHADER_glShader
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{
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    const MOJOSHADER_parseData *parseData;
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    GLhandleARB 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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    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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    GLhandleARB handle;
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    uint32 uniform_count;
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    UniformMap *uniforms;
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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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// Entry points in base OpenGL that lack function pointer prototypes...
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typedef const GLubyte * (APIENTRYP PFNGLGETSTRINGPROC) (GLenum name);
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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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    // 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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    const char *profile;
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    // Extensions...
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    int have_base_opengl;
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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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    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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};
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static MOJOSHADER_glContext *ctx = NULL;
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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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// #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(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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{
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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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219
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const char *MOJOSHADER_glGetError(void)
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{
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    return error_buffer;
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} // MOJOSHADER_glGetError
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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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} // loadsym
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static void lookup_entry_points(void *(*lookup)(const char *fnname))
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{
237
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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);
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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);
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    #undef DO_LOOKUP
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} // lookup_entry_points
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static int verify_extension(const char *ext, int have, const char *extlist,
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                            int major, int minor)
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{
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    if (have == 0)
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        return 0;  // don't bother checking, we're missing an entry point.
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    // See if it's in the spec for this GL implementation's version.
236
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    if (major >= 0)
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    {
237
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        if ( ((ctx->opengl_major << 16) | (ctx->opengl_minor & 0xFFFF)) >=
236
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             ((major << 16) | (minor & 0xFFFF)) )
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            return 1;
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   227
    } // if
229
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    // Not available in the GL version, check the extension list.
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    const char *ptr = strstr(extlist, ext);
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   231
    if (ptr == NULL)
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   232
        return 0;
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   233
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    const char endchar = ptr[strlen(ext)];
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    if ((endchar == '\0') || (endchar == ' '))
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   236
        return 1;  // extension is in the list.
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   237
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   238
    return 0;  // just not supported, fail.
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   239
} // verify_extension
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   241
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static void parse_opengl_version(const char *verstr)
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{
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    if (verstr == NULL)
237
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        ctx->opengl_major = ctx->opengl_minor = 0;
229
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   246
    else
237
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        sscanf(verstr, "%d.%d", &ctx->opengl_major, &ctx->opengl_minor);
229
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   248
} // parse_opengl_version
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   249
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   250
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static int check_extensions(void *(*lookup)(const char *fnname))
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   252
{
237
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   253
    ctx->have_base_opengl = 1;
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   254
    ctx->have_GL_ARB_shader_objects = 1;
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    ctx->have_GL_ARB_vertex_shader = 1;
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   256
    ctx->have_GL_ARB_fragment_shader = 1;
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   257
    ctx->have_GL_ARB_shading_language_100 = 1;
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   258
    ctx->have_GL_NV_half_float = 1;
229
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   259
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    lookup_entry_points(lookup);
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diff changeset
   261
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   262
    if (!ctx->have_base_opengl)   // a func we should definitely have is MIA?
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   263
    {
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   264
        set_error("missing basic OpenGL entry points");
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   265
        return 0;
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   266
    } // if
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   267
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   268
    parse_opengl_version((const char *) ctx->glGetString(GL_VERSION));
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   269
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   270
    const char *extlist = (const char *) ctx->glGetString(GL_EXTENSIONS);
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   271
    if (extlist == NULL)
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   272
        extlist = "";  // just in case.
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   273
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   274
    #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
   275
        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
   276
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   277
    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
   278
    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
   279
    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
   280
    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
   281
    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
   282
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   283
    #undef VERIFY_EXT
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   284
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   285
    #define REQUIRE_GL_EXTENSION(x) \
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   286
        if (!ctx->have_##x) { set_error("profile requires " #x); return 0; }
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   287
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   288
    if (strcmp(ctx->profile, MOJOSHADER_PROFILE_GLSL) == 0)
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   289
    {
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   290
        REQUIRE_GL_EXTENSION(GL_ARB_shader_objects);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   291
        REQUIRE_GL_EXTENSION(GL_ARB_vertex_shader);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   292
        REQUIRE_GL_EXTENSION(GL_ARB_fragment_shader);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   293
        REQUIRE_GL_EXTENSION(GL_ARB_shading_language_100);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   294
    } // if
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   295
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   296
    else
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   297
    {
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   298
        set_error("unknown profile");
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   299
        return 0;
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   300
    } // else
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   301
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   302
    #undef REQUIRE_GL_EXTENSION
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   303
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   304
    return 1;
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   305
} // check_extensions
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   306
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   307
238
e98f14da2897 Renamed glInit and glDeinit to glCreateContext and glDestroyContext.
Ryan C. Gordon <icculus@icculus.org>
parents: 237
diff changeset
   308
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
   309
                                        void *(*lookup)(const char *fnname),
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   310
                                        MOJOSHADER_malloc m, MOJOSHADER_free f,
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   311
                                        void *d)
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   312
{
249
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   313
    MOJOSHADER_glContext *retval = NULL;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   314
    MOJOSHADER_glContext *current_ctx = ctx;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   315
    ctx = NULL;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   316
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   317
    if (m == NULL) m = internal_malloc;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   318
    if (f == NULL) f = internal_free;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   319
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   320
    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
   321
    if (ctx == NULL)
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   322
    {
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   323
        set_error("out of memory");
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   324
        goto init_fail;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   325
    } // if
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   326
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   327
    memset(ctx, '\0', sizeof (MOJOSHADER_glContext));
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   328
    ctx->malloc_fn = m;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   329
    ctx->free_fn = f;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   330
    ctx->malloc_data = d;
219
61167fc96790 Added MOJOSHADER_glGetError() function, filled in error state.
Ryan C. Gordon <icculus@icculus.org>
parents: 216
diff changeset
   331
230
396aa372c7d8 Fixed logic error.
Ryan C. Gordon <icculus@icculus.org>
parents: 229
diff changeset
   332
    if (strcmp(_profile, MOJOSHADER_PROFILE_GLSL) == 0)
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   333
        ctx->profile = MOJOSHADER_PROFILE_GLSL;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   334
    else
219
61167fc96790 Added MOJOSHADER_glGetError() function, filled in error state.
Ryan C. Gordon <icculus@icculus.org>
parents: 216
diff changeset
   335
    {
61167fc96790 Added MOJOSHADER_glGetError() function, filled in error state.
Ryan C. Gordon <icculus@icculus.org>
parents: 216
diff changeset
   336
        set_error("unknown profile");
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   337
        goto init_fail;
219
61167fc96790 Added MOJOSHADER_glGetError() function, filled in error state.
Ryan C. Gordon <icculus@icculus.org>
parents: 216
diff changeset
   338
    } // else
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   339
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   340
    if (!check_extensions(lookup))
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   341
        goto init_fail;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   342
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   343
    MOJOSHADER_glBindProgram(NULL);
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   344
249
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   345
    retval = ctx;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   346
    ctx = current_ctx;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   347
    return retval;
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   348
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   349
init_fail:
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   350
    if (ctx != NULL)
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   351
        f(ctx, d);
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   352
    ctx = current_ctx;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   353
    return NULL;
238
e98f14da2897 Renamed glInit and glDeinit to glCreateContext and glDestroyContext.
Ryan C. Gordon <icculus@icculus.org>
parents: 237
diff changeset
   354
} // MOJOSHADER_glCreateContext
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   355
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   356
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   357
void MOJOSHADER_glMakeContextCurrent(MOJOSHADER_glContext *_ctx)
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   358
{
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   359
    ctx = _ctx;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   360
} // MOJOSHADER_glMakeContextCurrent
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   361
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   362
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   363
MOJOSHADER_glShader *MOJOSHADER_glCompileShader(const unsigned char *tokenbuf,
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   364
                                                const unsigned int bufsize)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   365
{
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   366
    MOJOSHADER_glShader *retval = NULL;
207
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   367
    GLhandleARB shader = 0;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   368
    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
   369
                                                      bufsize, ctx->malloc_fn,
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   370
                                                      ctx->free_fn,
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   371
                                                      ctx->malloc_data);
249
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   372
    GLint ok = 0;
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   373
    const GLenum shader_type = (pd->shader_type == MOJOSHADER_TYPE_PIXEL) ? GL_FRAGMENT_SHADER : GL_VERTEX_SHADER;
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   374
    GLint shaderlen = (GLint) pd->output_len;
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   375
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   376
    if (pd->error != NULL)
219
61167fc96790 Added MOJOSHADER_glGetError() function, filled in error state.
Ryan C. Gordon <icculus@icculus.org>
parents: 216
diff changeset
   377
    {
61167fc96790 Added MOJOSHADER_glGetError() function, filled in error state.
Ryan C. Gordon <icculus@icculus.org>
parents: 216
diff changeset
   378
        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
   379
        goto compile_shader_fail;
219
61167fc96790 Added MOJOSHADER_glGetError() function, filled in error state.
Ryan C. Gordon <icculus@icculus.org>
parents: 216
diff changeset
   380
    } // if
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   381
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   382
    retval = (MOJOSHADER_glShader *) Malloc(sizeof (MOJOSHADER_glShader));
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   383
    if (retval == NULL)
207
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   384
        goto compile_shader_fail;
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   385
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   386
    shader = ctx->glCreateShaderObject(shader_type);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   387
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   388
    ctx->glShaderSource(shader, 1, (const GLchar **) &pd->output, &shaderlen);
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   389
    ctx->glCompileShader(shader);
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   390
    ctx->glGetObjectParameteriv(shader, GL_OBJECT_COMPILE_STATUS_ARB, &ok);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   391
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   392
    if (!ok)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   393
    {
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   394
        GLsizei len = 0;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   395
        ctx->glGetInfoLog(shader, sizeof (error_buffer), &len, (GLchar *) error_buffer);
207
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   396
        goto compile_shader_fail;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   397
    } // if
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   398
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   399
    retval->parseData = pd;
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   400
    retval->handle = shader;
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   401
    retval->refcount = 1;
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   402
    return retval;
207
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   403
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   404
compile_shader_fail:
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   405
    MOJOSHADER_freeParseData(pd);
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   406
    Free(retval);
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   407
    if (shader != 0)
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   408
        ctx->glDeleteObject(shader);
207
d9cee469e080 Cleaned up GLSL shader compile code with some gotos.
Ryan C. Gordon <icculus@icculus.org>
parents: 206
diff changeset
   409
    return NULL;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   410
} // MOJOSHADER_glCompileShader
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   411
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   412
245
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
   413
const MOJOSHADER_parseData *MOJOSHADER_glGetShaderParseData(
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
   414
                                                MOJOSHADER_glShader *shader)
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
   415
{
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
   416
    return (shader != NULL) ? shader->parseData : NULL;
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
   417
} // MOJOSHADER_glGetShaderParseData
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
   418
1f04b805a4f2 Added MOJOSHADER_glGetShaderParseData().
Ryan C. Gordon <icculus@icculus.org>
parents: 243
diff changeset
   419
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   420
static void shader_unref(MOJOSHADER_glShader *shader)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   421
{
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   422
    if (shader != NULL)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   423
    {
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
   424
        const uint32 refcount = shader->refcount;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   425
        if (refcount > 1)
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
   426
            shader->refcount--;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   427
        else
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   428
        {
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   429
            ctx->glDeleteObject(shader->handle);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   430
            MOJOSHADER_freeParseData(shader->parseData);
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   431
            Free(shader);
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   432
        } // else
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   433
    } // if
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   434
} // shader_unref
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   435
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   436
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   437
static void program_unref(MOJOSHADER_glProgram *program)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   438
{
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   439
    if (program != NULL)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   440
    {
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   441
        const uint32 refcount = program->refcount;
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   442
        if (refcount > 1)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   443
            program->refcount--;
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   444
        else
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   445
        {
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   446
            ctx->glDeleteObject(program->handle);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   447
            shader_unref(program->vertex);
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   448
            shader_unref(program->fragment);
213
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   449
            Free(program->attributes);
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   450
            Free(program->uniforms);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   451
            Free(program);
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   452
        } // else
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   453
    } // if
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   454
} // program_unref
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   455
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   456
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   457
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
   458
                            MOJOSHADER_glShader *shader)
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   459
{
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   460
    int i;
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   461
    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
   462
    const MOJOSHADER_uniform *u = pd->uniforms;
206
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   463
    const MOJOSHADER_shaderType shader_type = pd->shader_type;
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   464
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   465
    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
   466
    {
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   467
        const GLint loc = ctx->glGetUniformLocation(program->handle, u[i].name);
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   468
        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
   469
        {
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   470
            UniformMap *map = &program->uniforms[program->uniform_count];
206
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   471
            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
   472
            map->uniform = &u[i];
215
f2e508f08997 Fixed wrong type for uniform/attribute locations.
Ryan C. Gordon <icculus@icculus.org>
parents: 213
diff changeset
   473
            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
   474
            program->uniform_count++;
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   475
        } // if
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   476
    } // for
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   477
} // lookup_uniforms
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   478
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   479
213
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   480
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
   481
{
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   482
    int i;
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   483
    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
   484
    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
   485
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   486
    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
   487
    {
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   488
        const GLint loc = ctx->glGetAttribLocation(program->handle, a->name);
213
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   489
        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
   490
        {
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   491
            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
   492
            map->attribute = &a[i];
215
f2e508f08997 Fixed wrong type for uniform/attribute locations.
Ryan C. Gordon <icculus@icculus.org>
parents: 213
diff changeset
   493
            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
   494
            program->attribute_count++;
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   495
        } // if
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   496
    } // for
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   497
} // lookup_attributes
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   498
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   499
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   500
MOJOSHADER_glProgram *MOJOSHADER_glLinkProgram(MOJOSHADER_glShader *vshader,
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   501
                                               MOJOSHADER_glShader *pshader)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   502
{
209
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   503
    if ((vshader == NULL) && (pshader == NULL))
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   504
        return NULL;
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   505
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   506
    MOJOSHADER_glProgram *retval = NULL;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   507
    const GLhandleARB program = ctx->glCreateProgramObject();
249
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   508
    int numregs = 0;
209
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   509
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   510
    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
   511
    if (pshader != NULL) ctx->glAttachObject(program, pshader->handle);
209
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   512
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   513
    ctx->glLinkProgram(program);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   514
209
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   515
    GLint ok = 0;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   516
    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
   517
    if (!ok)
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   518
    {
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   519
        GLsizei len = 0;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   520
        ctx->glGetInfoLog(program, sizeof (error_buffer), &len, (GLchar *) error_buffer);
209
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   521
        goto link_program_fail;
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   522
    } // if
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   523
204
5055ac80916e A little more work on MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 203
diff changeset
   524
    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
   525
    if (retval == NULL)
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   526
        goto link_program_fail;
209
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   527
    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
   528
209
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   529
    if (vshader != NULL) numregs += vshader->parseData->uniform_count;
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   530
    if (pshader != NULL) numregs += pshader->parseData->uniform_count;
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   531
    retval->uniforms = (UniformMap *) Malloc(sizeof (UniformMap) * numregs);
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   532
    if (retval->uniforms == NULL)
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   533
        goto link_program_fail;
209
2bd25adf2d3a Finished implementing MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 208
diff changeset
   534
    memset(retval->uniforms, '\0', sizeof (UniformMap) * numregs);
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   535
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   536
    retval->handle = program;
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   537
    retval->vertex = vshader;
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   538
    retval->fragment = pshader;
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   539
    retval->refcount = 1;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   540
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   541
    if (vshader != NULL)
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   542
    {
213
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   543
        retval->attributes = (AttributeMap *) Malloc(sizeof (AttributeMap) *
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   544
                                        vshader->parseData->attribute_count);
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   545
        if (retval->attributes == NULL)
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   546
            goto link_program_fail;
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   547
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   548
        lookup_attributes(retval);
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   549
        lookup_uniforms(retval, vshader);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   550
        vshader->refcount++;
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   551
    } // if
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   552
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   553
    if (pshader != NULL)
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   554
    {
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   555
        lookup_uniforms(retval, pshader);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   556
        pshader->refcount++;
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   557
    } // if
204
5055ac80916e A little more work on MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 203
diff changeset
   558
5055ac80916e A little more work on MOJOSHADER_glLinkProgram().
Ryan C. Gordon <icculus@icculus.org>
parents: 203
diff changeset
   559
    return retval;
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   560
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   561
link_program_fail:
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   562
    if (retval != NULL)
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   563
    {
213
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   564
        Free(retval->uniforms);
73935330a973 Cache attribute locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 212
diff changeset
   565
        Free(retval->attributes);
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   566
        Free(retval);
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   567
    } // if
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   568
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   569
    ctx->glDeleteObject(program);
205
8583f89985df Cache uniform locations for GLSL programs at link time.
Ryan C. Gordon <icculus@icculus.org>
parents: 204
diff changeset
   570
    return NULL;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   571
} // MOJOSHADER_glLinkProgram
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   572
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   573
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   574
void MOJOSHADER_glBindProgram(MOJOSHADER_glProgram *program)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   575
{
210
cb724dd80d4b Whoops, GLSL objects are GLhandleARB, not GLuint.
Ryan C. Gordon <icculus@icculus.org>
parents: 209
diff changeset
   576
    GLhandleARB handle = 0;
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
   577
    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
   578
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   579
    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
diff changeset
   580
        return;  // nothing to do.
8df4e9545c87 Disable any enabled client-side arrays when binding a new shader.
Ryan C. Gordon <icculus@icculus.org>
parents: 222
diff changeset
   581
8df4e9545c87 Disable any enabled client-side arrays when binding a new shader.
Ryan C. Gordon <icculus@icculus.org>
parents: 222
diff changeset
   582
    // Disable any client-side arrays the current program could have used.
242
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   583
    // !!! FIXME: don't disable yet...see which ones get reused, and disable
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   584
    // !!! FIXME:  only what we don't need in MOJOSHADER_glProgramReady().
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   585
    if (ctx->bound_program != NULL)
223
8df4e9545c87 Disable any enabled client-side arrays when binding a new shader.
Ryan C. Gordon <icculus@icculus.org>
parents: 222
diff changeset
   586
    {
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   587
        const int count = ctx->bound_program->attribute_count;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   588
        for (i = 0; i < count; i++)
223
8df4e9545c87 Disable any enabled client-side arrays when binding a new shader.
Ryan C. Gordon <icculus@icculus.org>
parents: 222
diff changeset
   589
        {
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   590
            const AttributeMap *map = &ctx->bound_program->attributes[i];
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   591
            ctx->glDisableVertexAttribArray(map->location);
223
8df4e9545c87 Disable any enabled client-side arrays when binding a new shader.
Ryan C. Gordon <icculus@icculus.org>
parents: 222
diff changeset
   592
        } // if
8df4e9545c87 Disable any enabled client-side arrays when binding a new shader.
Ryan C. Gordon <icculus@icculus.org>
parents: 222
diff changeset
   593
    } // for
8df4e9545c87 Disable any enabled client-side arrays when binding a new shader.
Ryan C. Gordon <icculus@icculus.org>
parents: 222
diff changeset
   594
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   595
    if (program != NULL)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   596
    {
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   597
        handle = program->handle;
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   598
        program->refcount++;
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   599
    } // if
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   600
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   601
    ctx->glUseProgramObject(handle);
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   602
    program_unref(ctx->bound_program);
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   603
    ctx->bound_program = program;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   604
} // MOJOSHADER_glBindProgram
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   605
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   606
203
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   607
static inline uint maxuint(const uint a, const uint b)
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   608
{
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   609
    return ((a > b) ? a : b);
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   610
} // maxuint
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   611
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   612
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   613
void MOJOSHADER_glSetVertexShaderUniformF(unsigned int idx, const float *data,
203
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   614
                                          unsigned int vec4n)
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   615
{
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   616
    const uint maxregs = STATICARRAYLEN(ctx->vs_reg_file_f) / 4;
203
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   617
    if (idx < maxregs)
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   618
    {
249
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   619
        assert(sizeof (GLfloat) == sizeof (float));
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
   620
        const uint cpy = (maxuint(maxregs - idx, vec4n) * sizeof (*data)) * 4;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   621
        memcpy(ctx->vs_reg_file_f + (idx * 4), data, cpy);
203
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   622
    } // if
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   623
} // MOJOSHADER_glSetVertexShaderUniformF
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   624
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   625
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   626
void MOJOSHADER_glSetVertexShaderUniformI(unsigned int idx, const int *data,
203
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   627
                                          unsigned int ivec4n)
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   628
{
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   629
    const uint maxregs = STATICARRAYLEN(ctx->vs_reg_file_i) / 4;
203
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   630
    if (idx < maxregs)
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   631
    {
249
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   632
        assert(sizeof (GLint) == sizeof (int));
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
   633
        const uint cpy = (maxuint(maxregs - idx, ivec4n) * sizeof (*data)) * 4;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   634
        memcpy(ctx->vs_reg_file_i + (idx * 4), data, cpy);
203
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   635
    } // if
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   636
} // MOJOSHADER_glSetVertexShaderUniformI
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   637
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   638
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   639
void MOJOSHADER_glSetVertexShaderUniformB(unsigned int idx, const int *data,
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   640
                                          unsigned int bcount)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   641
{
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   642
    const uint maxregs = STATICARRAYLEN(ctx->vs_reg_file_f) / 4;
203
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   643
    if (idx < maxregs)
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   644
    {
249
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   645
        GLint *wptr = ctx->vs_reg_file_b + idx;
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   646
        GLint *endptr = wptr + maxuint(maxregs - idx, bcount);
203
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   647
        while (wptr != endptr)
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   648
            *(wptr++) = *(data++) ? 1 : 0;
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   649
    } // if
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   650
} // MOJOSHADER_glSetVertexShaderUniformB
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   651
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   652
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   653
void MOJOSHADER_glSetPixelShaderUniformF(unsigned int idx, const float *data,
212
76eeb43e054c Whitespace fix.
Ryan C. Gordon <icculus@icculus.org>
parents: 210
diff changeset
   654
                                         unsigned int vec4n)
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   655
{
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   656
    const uint maxregs = STATICARRAYLEN(ctx->ps_reg_file_f) / 4;
203
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   657
    if (idx < maxregs)
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   658
    {
249
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   659
        assert(sizeof (GLfloat) == sizeof (float));
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
   660
        const uint cpy = (maxuint(maxregs - idx, vec4n) * sizeof (*data)) * 4;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   661
        memcpy(ctx->ps_reg_file_f + (idx * 4), data, cpy);
203
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   662
    } // if
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   663
} // MOJOSHADER_glSetPixelShaderUniformF
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   664
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   665
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   666
void MOJOSHADER_glSetPixelShaderUniformI(unsigned int idx, const int *data,
203
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   667
                                         unsigned int ivec4n)
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   668
{
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   669
    const uint maxregs = STATICARRAYLEN(ctx->ps_reg_file_i) / 4;
203
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   670
    if (idx < maxregs)
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   671
    {
249
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   672
        assert(sizeof (GLint) == sizeof (int));
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
   673
        const uint cpy = (maxuint(maxregs - idx, ivec4n) * sizeof (*data)) * 4;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   674
        memcpy(ctx->ps_reg_file_i + (idx * 4), data, cpy);
203
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   675
    } // if
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   676
} // MOJOSHADER_glSetPixelShaderUniformI
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   677
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   678
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   679
void MOJOSHADER_glSetPixelShaderUniformB(unsigned int idx, const int *data,
212
76eeb43e054c Whitespace fix.
Ryan C. Gordon <icculus@icculus.org>
parents: 210
diff changeset
   680
                                         unsigned int bcount)
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   681
{
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   682
    const uint maxregs = STATICARRAYLEN(ctx->ps_reg_file_f) / 4;
203
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   683
    if (idx < maxregs)
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   684
    {
249
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   685
        GLint *wptr = ctx->ps_reg_file_b + idx;
7f928921766c Cleanups for building as C++ code.
Ryan C. Gordon <icculus@icculus.org>
parents: 246
diff changeset
   686
        GLint *endptr = wptr + maxuint(maxregs - idx, bcount);
203
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   687
        while (wptr != endptr)
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   688
            *(wptr++) = *(data++) ? 1 : 0;
ff983e373e37 Implemented uniform array setting in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 202
diff changeset
   689
    } // if
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   690
} // MOJOSHADER_glSetPixelShaderUniformB
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   691
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   692
216
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   693
static inline GLenum opengl_attr_type(const MOJOSHADER_attributeType type)
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   694
{
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   695
    switch (type)
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   696
    {
241
08f612343cd1 Fixed compiler warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 238
diff changeset
   697
        case MOJOSHADER_ATTRIBUTE_UNKNOWN: return GL_NONE; // oh well.
216
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   698
        case MOJOSHADER_ATTRIBUTE_BYTE: return GL_BYTE;
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   699
        case MOJOSHADER_ATTRIBUTE_UBYTE: return GL_UNSIGNED_BYTE;
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   700
        case MOJOSHADER_ATTRIBUTE_SHORT: return GL_SHORT;
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
   701
        case MOJOSHADER_ATTRIBUTE_USHORT: return GL_UNSIGNED_SHORT;
216
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   702
        case MOJOSHADER_ATTRIBUTE_INT: return GL_INT;
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   703
        case MOJOSHADER_ATTRIBUTE_UINT: return GL_UNSIGNED_INT;
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   704
        case MOJOSHADER_ATTRIBUTE_FLOAT: return GL_FLOAT;
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   705
        case MOJOSHADER_ATTRIBUTE_DOUBLE: return GL_DOUBLE;
236
8e2fc535b210 Support for half-float attribute arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 230
diff changeset
   706
8e2fc535b210 Support for half-float attribute arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 230
diff changeset
   707
        case MOJOSHADER_ATTRIBUTE_HALF_FLOAT:
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   708
            if (ctx->have_GL_NV_half_float)
236
8e2fc535b210 Support for half-float attribute arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 230
diff changeset
   709
                return GL_HALF_FLOAT_NV;
8e2fc535b210 Support for half-float attribute arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 230
diff changeset
   710
            break;
216
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   711
    } // switch
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   712
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   713
    return GL_NONE;  // oh well. Raises a GL error later.
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   714
} // opengl_attr_type
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   715
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   716
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   717
void MOJOSHADER_glSetVertexAttribute(MOJOSHADER_usage usage,
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   718
                                     int index, unsigned int size,
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   719
                                     MOJOSHADER_attributeType type,
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   720
                                     int normalized, unsigned int stride,
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   721
                                     const void *ptr)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   722
{
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   723
    if ((ctx->bound_program == NULL) || (ctx->bound_program->vertex == NULL))
216
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   724
        return;
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   725
242
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   726
    const GLenum gl_type = opengl_attr_type(type);
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   727
    const GLboolean norm = (normalized) ? GL_TRUE : GL_FALSE;
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   728
    GLuint gl_index = 0;
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   729
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   730
    // We have to map POSITION0 to generic vertex attribute 0; the
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   731
    //  GL_ARB_vertex_shader spec says this is equivalent to using
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   732
    //  glVertexPointer(), but without the limitations of that entry point.
216
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   733
242
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   734
    if ((usage != MOJOSHADER_USAGE_POSITION) || (index != 0))
216
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   735
    {
242
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   736
        int i;
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   737
        const int count = ctx->bound_program->attribute_count;
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   738
        for (i = 0; i < count; i++)
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   739
        {
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   740
            const AttributeMap *map = &ctx->bound_program->attributes[i];
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   741
            const MOJOSHADER_attribute *a = map->attribute;
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   742
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   743
            // !!! FIXME: is this array guaranteed to be sorted by usage?
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   744
            // !!! FIXME:  if so, we can break if a->usage > usage.
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   745
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   746
            if ((a->usage == usage) && (a->index == index))
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   747
            {
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   748
                gl_index = map->location;
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   749
                break;
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   750
            } // if
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   751
        } // for
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   752
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   753
        if (gl_index == 0)
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   754
            return;  // nothing to do, this shader doesn't use this stream.
216
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   755
    } // if
f5f4e5f05951 Implemented MOJOSHADER_glSetVertexAttribute().
Ryan C. Gordon <icculus@icculus.org>
parents: 215
diff changeset
   756
242
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   757
    ctx->glVertexAttribPointer(gl_index, size, gl_type, norm, stride, ptr);
c3c5693ba179 Fixed vertex attribute aliasing in OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 241
diff changeset
   758
    ctx->glEnableVertexAttribArray(gl_index);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   759
} // MOJOSHADER_glSetVertexAttribute
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   760
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   761
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   762
void MOJOSHADER_glProgramReady(void)
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   763
{
206
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   764
    int i;
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   765
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   766
    if (ctx->bound_program == NULL)
206
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   767
        return;  // nothing to do.
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   768
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   769
    // !!! FIXME: don't push Uniforms if we know they haven't changed.
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   770
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   771
    // push Uniforms to the program from our register files...
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   772
    const int count = ctx->bound_program->uniform_count;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   773
    for (i = 0; i < count; i++)
206
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   774
    {
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   775
        const UniformMap *map = &ctx->bound_program->uniforms[i];
206
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   776
        const MOJOSHADER_uniform *u = map->uniform;
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   777
        const MOJOSHADER_uniformType type = u->type;
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   778
        const MOJOSHADER_shaderType shader_type = map->shader_type;
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   779
        const int index = u->index;
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   780
        const GLint location = map->location;
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   781
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   782
        if (shader_type == MOJOSHADER_TYPE_VERTEX)
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   783
        {
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   784
            if (type == MOJOSHADER_UNIFORM_FLOAT)
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   785
                ctx->glUniform4fv(location, 1, &ctx->vs_reg_file_f[index * 4]);
206
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   786
            else if (type == MOJOSHADER_UNIFORM_INT)
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   787
                ctx->glUniform4iv(location, 1, &ctx->vs_reg_file_i[index * 4]);
206
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   788
            else if (type == MOJOSHADER_UNIFORM_BOOL)
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   789
                ctx->glUniform1i(location, ctx->vs_reg_file_b[index]);
206
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   790
        } // if
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   791
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   792
        else if (shader_type == MOJOSHADER_TYPE_PIXEL)
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   793
        {
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   794
            if (type == MOJOSHADER_UNIFORM_FLOAT)
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   795
                ctx->glUniform4fv(location, 1, &ctx->ps_reg_file_f[index * 4]);
206
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   796
            else if (type == MOJOSHADER_UNIFORM_INT)
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   797
                ctx->glUniform4iv(location, 1, &ctx->ps_reg_file_i[index * 4]);
206
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   798
            else if (type == MOJOSHADER_UNIFORM_BOOL)
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   799
                ctx->glUniform1i(location, ctx->ps_reg_file_b[index]);
206
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   800
        } // else if
7027d889acdd Implemented MOJOSHADER_glProgramReady().
Ryan C. Gordon <icculus@icculus.org>
parents: 205
diff changeset
   801
    } // for
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   802
} // MOJOSHADER_glProgramReady
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   803
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   804
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
   805
void MOJOSHADER_glDeleteProgram(MOJOSHADER_glProgram *program)
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   806
{
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
   807
    program_unref(program);
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   808
} // MOJOSHADER_glDeleteProgram
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   809
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   810
226
4a2b3d0b535f Patched mojoshader_opengl.c to compile, mostly.
Ryan C. Gordon <icculus@icculus.org>
parents: 223
diff changeset
   811
void MOJOSHADER_glDeleteShader(MOJOSHADER_glShader *shader)
202
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
    shader_unref(shader);
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   814
} // MOJOSHADER_glDeleteShader
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   815
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   816
238
e98f14da2897 Renamed glInit and glDeinit to glCreateContext and glDestroyContext.
Ryan C. Gordon <icculus@icculus.org>
parents: 237
diff changeset
   817
void MOJOSHADER_glDestroyContext(MOJOSHADER_glContext *_ctx)
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   818
{
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   819
    MOJOSHADER_glContext *current_ctx = ctx;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   820
    ctx = _ctx;
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   821
    MOJOSHADER_glBindProgram(NULL);
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   822
    lookup_entry_points(NULL);
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   823
    Free(ctx);
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   824
    ctx = ((current_ctx == _ctx) ? NULL : current_ctx);
238
e98f14da2897 Renamed glInit and glDeinit to glCreateContext and glDestroyContext.
Ryan C. Gordon <icculus@icculus.org>
parents: 237
diff changeset
   825
} // MOJOSHADER_glDestroyContext
202
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   826
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   827
// end of mojoshader_opengl.c ...
20bdf2d7036e Initial add of mojoshader_opengl.c
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   828