mojoshader_opengl.c
author Ryan C. Gordon <icculus@icculus.org>
Wed, 21 Dec 2011 02:19:10 -0500
changeset 1070 32eb4fe78351
parent 1069 12e1db42bf75
child 1071 0021ff95cab4
permissions -rw-r--r--
Reworked GLSL extension and version detection. Also disabled forcibly declaring GLSL available if the GL version is >= 2.0, because the ARB extensions use different entry points than the core version. Silly mistake.
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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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// !!! FIXME: preshaders shouldn't be handled in here at all. This should
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// !!! FIXME:  be in the Effects API, once that's actually written.
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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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// !!! FIXME: most of these _MSC_VER should probably be _WINDOWS?
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#ifdef _MSC_VER
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#define WIN32_LEAN_AND_MEAN 1
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#include <windows.h>  // GL headers need this for WINGDIAPI definition.
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#endif
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#if (defined(__APPLE__) && defined(__MACH__))
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#define PLATFORM_MACOSX 1
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#endif
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#if PLATFORM_MACOSX
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#include <Carbon/Carbon.h>
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#endif
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#define __MOJOSHADER_INTERNAL__ 1
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#include "mojoshader_internal.h"
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#define GL_GLEXT_LEGACY 1
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#include "GL/gl.h"
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#include "GL/glext.h"
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#ifndef GL_HALF_FLOAT
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#define GL_HALF_FLOAT 0x140B
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#endif
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#ifndef GL_HALF_FLOAT_OES
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#define GL_HALF_FLOAT_OES 0x8D61
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#endif
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// this happens to be the same value for ARB1 and GLSL.
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#ifndef GL_PROGRAM_POINT_SIZE
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#define GL_PROGRAM_POINT_SIZE 0x8642
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#endif
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struct MOJOSHADER_glShader
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{
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    const MOJOSHADER_parseData *parseData;
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    GLuint handle;
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    uint32 refcount;
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};
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typedef struct
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{
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    MOJOSHADER_shaderType shader_type;
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    const MOJOSHADER_uniform *uniform;
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    GLint 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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    GLint location;
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} AttributeMap;
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struct MOJOSHADER_glProgram
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{
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    MOJOSHADER_glShader *vertex;
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    MOJOSHADER_glShader *fragment;
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    GLuint handle;
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    uint32 generation;
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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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    size_t vs_uniforms_float4_count;
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    GLfloat *vs_uniforms_float4;
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    size_t vs_uniforms_int4_count;
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    GLint *vs_uniforms_int4;
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    size_t vs_uniforms_bool_count;
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    GLint *vs_uniforms_bool;
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    size_t ps_uniforms_float4_count;
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    GLfloat *ps_uniforms_float4;
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    size_t ps_uniforms_int4_count;
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    GLint *ps_uniforms_int4;
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    size_t ps_uniforms_bool_count;
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    GLint *ps_uniforms_bool;
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    size_t vs_preshader_reg_count;
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    GLfloat *vs_preshader_regs;
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    size_t ps_preshader_reg_count;
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    GLfloat *ps_preshader_regs;
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    uint32 refcount;
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    int uses_pointsize;
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    // GLSL uses these...location of uniform arrays.
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    GLint vs_float4_loc;
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    GLint vs_int4_loc;
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    GLint vs_bool_loc;
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    GLint ps_float4_loc;
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    GLint ps_int4_loc;
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    GLint ps_bool_loc;
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};
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#ifndef WINGDIAPI
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#define WINGDIAPI
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#endif
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// Entry points in base OpenGL that lack function pointer prototypes...
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typedef WINGDIAPI void (APIENTRYP PFNGLGETINTEGERVPROC) (GLenum pname, GLint *params);
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typedef WINGDIAPI const GLubyte * (APIENTRYP PFNGLGETSTRINGPROC) (GLenum name);
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typedef WINGDIAPI GLenum (APIENTRYP PFNGLGETERRORPROC) (void);
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typedef WINGDIAPI void (APIENTRYP PFNGLENABLEPROC) (GLenum cap);
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typedef WINGDIAPI void (APIENTRYP PFNGLDISABLEPROC) (GLenum cap);
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// Max entries for each register file type...
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#define MAX_REG_FILE_F 8192
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#define MAX_REG_FILE_I 2047
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#define MAX_REG_FILE_B 2047
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237
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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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    // !!! FIXME: Man, it kills me how much memory this takes...
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    // !!! FIXME:  ... make this dynamically allocated on demand.
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    GLfloat vs_reg_file_f[MAX_REG_FILE_F * 4];
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    GLint vs_reg_file_i[MAX_REG_FILE_I * 4];
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    uint8 vs_reg_file_b[MAX_REG_FILE_B];
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    GLfloat ps_reg_file_f[MAX_REG_FILE_F * 4];
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    GLint ps_reg_file_i[MAX_REG_FILE_I * 4];
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    uint8 ps_reg_file_b[MAX_REG_FILE_B];
284
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    GLuint sampler_reg_file[16];
237
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774
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    // This increments every time we change the register files.
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    uint32 generation;
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    // This keeps track of implicitly linked programs.
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    HashTable *linker_cache;
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    // This tells us which vertex attribute arrays we have enabled.
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    GLint max_attrs;
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    uint8 want_attr[32];
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    uint8 have_attr[32];
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    // rarely used, so we don't touch when we don't have to.
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    int pointsize_enabled;
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237
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    // GL stuff...
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    int opengl_major;
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    int opengl_minor;
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    int glsl_major;
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    int glsl_minor;
237
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    MOJOSHADER_glProgram *bound_program;
262
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    char profile[16];
237
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    // Extensions...
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    int have_base_opengl;
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    int have_GL_ARB_vertex_program;
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    int have_GL_ARB_fragment_program;
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    int have_GL_NV_vertex_program2_option;
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    int have_GL_NV_fragment_program2;
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    int have_GL_NV_vertex_program3;
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    int have_GL_NV_gpu_program4;
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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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    int have_GL_ARB_half_float_vertex;
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    int have_GL_OES_vertex_half_float;
237
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    // Entry points...
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    PFNGLGETSTRINGPROC glGetString;
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    PFNGLGETERRORPROC glGetError;
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    PFNGLGETINTEGERVPROC glGetIntegerv;
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    PFNGLENABLEPROC glEnable;
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    PFNGLDISABLEPROC glDisable;
237
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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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    PFNGLUNIFORM1IVARBPROC glUniform1iv;
237
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    PFNGLUNIFORM4FVARBPROC glUniform4fv;
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    PFNGLUNIFORM4IVARBPROC glUniform4iv;
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    PFNGLUSEPROGRAMOBJECTARBPROC glUseProgramObject;
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    PFNGLVERTEXATTRIBPOINTERARBPROC glVertexAttribPointer;
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    PFNGLGETPROGRAMIVARBPROC glGetProgramivARB;
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    PFNGLGETPROGRAMSTRINGARBPROC glGetProgramStringARB;
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d2307cc5d6e7 Use local parameters, not environment params, in the arb1/nv2 profiles.
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    PFNGLPROGRAMLOCALPARAMETER4FVARBPROC glProgramLocalParameter4fvARB;
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    PFNGLPROGRAMLOCALPARAMETERI4IVNVPROC glProgramLocalParameterI4ivNV;
333
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    PFNGLDELETEPROGRAMSARBPROC glDeleteProgramsARB;
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    PFNGLGENPROGRAMSARBPROC glGenProgramsARB;
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    PFNGLBINDPROGRAMARBPROC glBindProgramARB;
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    PFNGLPROGRAMSTRINGARBPROC glProgramStringARB;
323
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    // interface for profile-specific things.
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    int (*profileMaxUniforms)(MOJOSHADER_shaderType shader_type);
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    int (*profileCompileShader)(const MOJOSHADER_parseData *pd, GLuint *s);
323
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    void (*profileDeleteShader)(const GLuint shader);
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    void (*profileDeleteProgram)(const GLuint program);
347
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    GLint (*profileGetAttribLocation)(MOJOSHADER_glProgram *program, int idx);
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    GLint (*profileGetUniformLocation)(MOJOSHADER_glProgram *program, MOJOSHADER_glShader *shader, int idx);
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    GLint (*profileGetSamplerLocation)(MOJOSHADER_glProgram *, MOJOSHADER_glShader *, int);
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    GLuint (*profileLinkProgram)(MOJOSHADER_glShader *, MOJOSHADER_glShader *);
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    void (*profileFinalInitProgram)(MOJOSHADER_glProgram *program);
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    void (*profileUseProgramObject)(MOJOSHADER_glProgram *program);
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    void (*profilePushConstantArray)(MOJOSHADER_glProgram *, const MOJOSHADER_uniform *, const GLfloat *);
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    void (*profilePushUniforms)(void);
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    void (*profilePushSampler)(GLint loc, GLuint sampler);
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    int (*profileMustPushConstantArrays)(void);
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    int (*profileMustPushSamplers)(void);
237
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};
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323
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237
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static MOJOSHADER_glContext *ctx = NULL;
229
67a3d459d865 OpenGL extension lookup and entry point loading.
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219
61167fc96790 Added MOJOSHADER_glGetError() function, filled in error state.
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// Error state...
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static char error_buffer[1024] = { '\0' };
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61167fc96790 Added MOJOSHADER_glGetError() function, filled in error state.
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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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457
96552d8041bf Forbid GLSL on Mac OS X Tiger systems.
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#if PLATFORM_MACOSX
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static inline int macosx_version_atleast(int x, int y, int z)
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{
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    static int checked = 0;
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    static int combined = 0;
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    if (!checked)
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    {
807
138d76f766d1 Fixed compiler warnings on 64-bit Mac OS X.
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        SInt32 ver, major, minor, patch;
457
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        int convert = 0;
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        if (Gestalt(gestaltSystemVersion, &ver) != noErr)
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            ver = 0x1000;  // oh well.
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        else if (ver < 0x1030)
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            convert = 1;  // split (ver) into (major),(minor),(patch).
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        else
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        {
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            // presumably this won't fail. But if it does, we'll just use the
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            //  original version value. This might cut the value--10.12.11 will
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            //  come out to 10.9.9, for example--but it's better than nothing.
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            if (Gestalt(gestaltSystemVersionMajor, &major) != noErr)
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                convert = 1;
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            else if (Gestalt(gestaltSystemVersionMinor, &minor) != noErr)
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                convert = 1;
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            else if (Gestalt(gestaltSystemVersionBugFix, &patch) != noErr)
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                convert = 1;
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        } // else
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        if (convert)
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        {
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            major = ((ver & 0xFF00) >> 8);
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            major = (((major / 16) * 10) + (major % 16));
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            minor = ((ver & 0xF0) >> 4);
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            patch = (ver & 0xF);
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177b9242d08a Fixed a comment.
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        } // if
457
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        combined = (major << 16) | (minor << 8) | patch;
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        checked = 1;
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   287
    } // if
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   288
460
54c614f0fcb0 Fixed OS X detection code.
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    return (combined >= ((x << 16) | (y << 8) | z));
457
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} // macosx_version_atleast
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#endif
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1066
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static inline void out_of_memory(void)
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{
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    set_error("out of memory");
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} // out_of_memory
202
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static inline void *Malloc(const size_t len)
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{
307
42f6a7ba69e2 Fixes for Visual Studio level 4 compiler warnings.
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    void *retval = ctx->malloc_fn((int) len, ctx->malloc_data);
220
df5ea69833d5 Fixes to Malloc() and Free() in mojoshader_opengl.c ...
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    if (retval == NULL)
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        out_of_memory();
220
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    return retval;
202
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} // Malloc
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static inline void Free(void *ptr)
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{
220
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   308
    if (ptr != NULL)
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
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   309
        ctx->free_fn(ptr, ctx->malloc_data);
202
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} // Free
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358
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   313
static inline void toggle_gl_state(GLenum state, int val)
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   314
{
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   315
    if (val)
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   316
        ctx->glEnable(state);
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   317
    else
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   318
        ctx->glDisable(state);
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   319
} // toggle_gl_state
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   320
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
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   321
411
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   322
// profile-specific implementations...
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   323
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   324
#if SUPPORT_PROFILE_GLSL
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   325
static inline GLenum glsl_shader_type(const MOJOSHADER_shaderType t)
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   326
{
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   327
    if (t == MOJOSHADER_TYPE_VERTEX)
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   328
        return GL_VERTEX_SHADER;
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diff changeset
   329
    else if (t == MOJOSHADER_TYPE_PIXEL)
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diff changeset
   330
        return GL_FRAGMENT_SHADER;
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   331
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   332
    // !!! FIXME: geometry shaders?
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diff changeset
   333
    return GL_NONE;
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diff changeset
   334
} // glsl_shader_type
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   335
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diff changeset
   336
760
6dc8d2cafc58 "Must Push" seemed more correct than "Must Load".
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   337
static int impl_GLSL_MustPushConstantArrays(void) { return 1; }
6dc8d2cafc58 "Must Push" seemed more correct than "Must Load".
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   338
static int impl_GLSL_MustPushSamplers(void) { return 1; }
438
73492129c1af Expose true constant arrays in parseData, load them at link time for GLSL.
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diff changeset
   339
411
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   340
static int impl_GLSL_MaxUniforms(MOJOSHADER_shaderType shader_type)
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diff changeset
   341
{
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diff changeset
   342
    GLenum pname = GL_NONE;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   343
    GLint val = 0;
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diff changeset
   344
    if (shader_type == MOJOSHADER_TYPE_VERTEX)
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diff changeset
   345
        pname = GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB;
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diff changeset
   346
    else if (shader_type == MOJOSHADER_TYPE_PIXEL)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   347
        pname = GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB;
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diff changeset
   348
    else
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   349
        return -1;
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diff changeset
   350
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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   351
    ctx->glGetIntegerv(pname, &val);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   352
    return (int) val;
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diff changeset
   353
} // impl_GLSL_MaxUniforms
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diff changeset
   354
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   355
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   356
static int impl_GLSL_CompileShader(const MOJOSHADER_parseData *pd, GLuint *s)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   357
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   358
    GLint ok = 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   359
    GLint shaderlen = (GLint) pd->output_len;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   360
    const GLenum shader_type = glsl_shader_type(pd->shader_type);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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parents: 410
diff changeset
   361
    GLuint shader = ctx->glCreateShaderObject(shader_type);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   362
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   363
    ctx->glShaderSource(shader, 1, (const GLchar **) &pd->output, &shaderlen);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   364
    ctx->glCompileShader(shader);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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parents: 410
diff changeset
   365
    ctx->glGetObjectParameteriv(shader, GL_OBJECT_COMPILE_STATUS_ARB, &ok);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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parents: 410
diff changeset
   366
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   367
    if (!ok)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   368
    {
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   369
        GLsizei len = 0;
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diff changeset
   370
        ctx->glGetInfoLog(shader, sizeof (error_buffer), &len,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   371
                          (GLchar *) error_buffer);
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diff changeset
   372
        *s = 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   373
        return 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   374
    } // if
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   375
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   376
    *s = shader;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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parents: 410
diff changeset
   377
    return 1;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   378
} // impl_GLSL_CompileShader
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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parents: 410
diff changeset
   379
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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parents: 410
diff changeset
   380
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   381
static void impl_GLSL_DeleteShader(const GLuint shader)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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parents: 410
diff changeset
   382
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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diff changeset
   383
    ctx->glDeleteObject(shader);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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parents: 410
diff changeset
   384
} // impl_GLSL_DeleteShader
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
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parents: 410
diff changeset
   385
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   386
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   387
static void impl_GLSL_DeleteProgram(const GLuint program)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   388
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   389
    ctx->glDeleteObject(program);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   390
} // impl_GLSL_DeleteProgram
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   391
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   392
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   393
static GLint impl_GLSL_GetUniformLocation(MOJOSHADER_glProgram *program,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   394
                                          MOJOSHADER_glShader *shader, int idx)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   395
{
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   396
    return 0;  // no-op, we push this as one big-ass array now.
411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   397
} // impl_GLSL_GetUniformLocation
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   398
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   399
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   400
static GLint impl_GLSL_GetSamplerLocation(MOJOSHADER_glProgram *program,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   401
                                          MOJOSHADER_glShader *shader, int idx)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   402
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   403
    return ctx->glGetUniformLocation(program->handle,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   404
                                     shader->parseData->samplers[idx].name);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   405
} // impl_GLSL_GetSamplerLocation
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   406
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   407
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   408
static GLint impl_GLSL_GetAttribLocation(MOJOSHADER_glProgram *program, int idx)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   409
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   410
    const MOJOSHADER_parseData *pd = program->vertex->parseData;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   411
    const MOJOSHADER_attribute *a = pd->attributes;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   412
    return ctx->glGetAttribLocation(program->handle, a[idx].name);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   413
} // impl_GLSL_GetAttribLocation
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   414
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   415
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   416
static GLuint impl_GLSL_LinkProgram(MOJOSHADER_glShader *vshader,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   417
                                    MOJOSHADER_glShader *pshader)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   418
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   419
    const GLuint program = ctx->glCreateProgramObject();
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   420
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   421
    if (vshader != NULL) ctx->glAttachObject(program, vshader->handle);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   422
    if (pshader != NULL) ctx->glAttachObject(program, pshader->handle);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   423
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   424
    ctx->glLinkProgram(program);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   425
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   426
    GLint ok = 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   427
    ctx->glGetObjectParameteriv(program, GL_OBJECT_LINK_STATUS_ARB, &ok);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   428
    if (!ok)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   429
    {
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   430
        GLsizei len = 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   431
        ctx->glGetInfoLog(program, sizeof (error_buffer), &len, (GLchar *) error_buffer);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   432
        ctx->glDeleteObject(program);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   433
        return 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   434
    } // if
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   435
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   436
    return program;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   437
} // impl_GLSL_LinkProgram
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   438
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   439
765
076f3bd42329 Moved profileInitProgram to profileFinalInitProgram.
Ryan C. Gordon <icculus@icculus.org>
parents: 764
diff changeset
   440
static void impl_GLSL_FinalInitProgram(MOJOSHADER_glProgram *program)
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   441
{
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   442
    program->vs_float4_loc =
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   443
        ctx->glGetUniformLocation(program->handle, "vs_uniforms_vec4");
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   444
    program->vs_int4_loc =
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   445
        ctx->glGetUniformLocation(program->handle, "vs_uniforms_ivec4");
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   446
    program->vs_bool_loc =
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   447
        ctx->glGetUniformLocation(program->handle, "vs_uniforms_bool");
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   448
    program->ps_float4_loc =
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   449
        ctx->glGetUniformLocation(program->handle, "ps_uniforms_vec4");
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   450
    program->ps_int4_loc =
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   451
        ctx->glGetUniformLocation(program->handle, "ps_uniforms_ivec4");
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   452
    program->ps_bool_loc =
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   453
        ctx->glGetUniformLocation(program->handle, "ps_uniforms_bool");
765
076f3bd42329 Moved profileInitProgram to profileFinalInitProgram.
Ryan C. Gordon <icculus@icculus.org>
parents: 764
diff changeset
   454
} // impl_GLSL_FinalInitProgram
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   455
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   456
411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   457
static void impl_GLSL_UseProgramObject(MOJOSHADER_glProgram *program)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   458
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   459
    ctx->glUseProgramObject((program != NULL) ? program->handle : 0);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   460
} // impl_GLSL_UseProgramObject
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   461
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   462
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   463
static void impl_GLSL_PushConstantArray(MOJOSHADER_glProgram *program,
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   464
                                        const MOJOSHADER_uniform *u,
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   465
                                        const GLfloat *f)
411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   466
{
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   467
    const GLint loc = ctx->glGetUniformLocation(program->handle, u->name);
798
5dd67cc04cf9 Bunch of small tweaks to make this compile as C++ code without errors/warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 797
diff changeset
   468
    if (loc >= 0)   // not optimized out?
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   469
        ctx->glUniform4fv(loc, u->array_count, f);
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   470
} // impl_GLSL_PushConstantArray
411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   471
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   472
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   473
static void impl_GLSL_PushUniforms(void)
411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   474
{
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   475
    const MOJOSHADER_glProgram *program = ctx->bound_program;
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   476
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   477
    assert(program->uniform_count > 0);  // don't call with nothing to do!
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   478
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   479
    if (program->vs_float4_loc != -1)
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   480
    {
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   481
        ctx->glUniform4fv(program->vs_float4_loc,
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   482
                          program->vs_uniforms_float4_count,
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   483
                          program->vs_uniforms_float4);
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   484
    } // if
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   485
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   486
    if (program->vs_int4_loc != -1)
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   487
    {
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   488
        ctx->glUniform4iv(program->vs_int4_loc,
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   489
                          program->vs_uniforms_int4_count,
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   490
                          program->vs_uniforms_int4);
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   491
    } // if
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   492
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   493
    if (program->vs_bool_loc != -1)
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   494
    {
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   495
        ctx->glUniform1iv(program->vs_bool_loc,
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   496
                          program->vs_uniforms_bool_count,
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   497
                          program->vs_uniforms_bool);
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   498
    } // if
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   499
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   500
    if (program->ps_float4_loc != -1)
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   501
    {
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   502
        ctx->glUniform4fv(program->ps_float4_loc,
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   503
                          program->ps_uniforms_float4_count,
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   504
                          program->ps_uniforms_float4);
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   505
    } // if
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   506
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   507
    if (program->ps_int4_loc != -1)
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   508
    {
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   509
        ctx->glUniform4iv(program->ps_int4_loc,
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   510
                          program->ps_uniforms_int4_count,
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   511
                          program->ps_uniforms_int4);
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   512
    } // if
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   513
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   514
    if (program->ps_bool_loc != -1)
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   515
    {
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   516
        ctx->glUniform1iv(program->ps_bool_loc,
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   517
                          program->ps_uniforms_bool_count,
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   518
                          program->ps_uniforms_bool);
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   519
    } // if
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   520
} // impl_GLSL_PushUniforms
411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   521
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   522
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   523
static void impl_GLSL_PushSampler(GLint loc, GLuint sampler)
411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   524
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   525
    ctx->glUniform1i(loc, sampler);
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   526
} // impl_GLSL_PushSampler
411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   527
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   528
#endif  // SUPPORT_PROFILE_GLSL
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   529
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   530
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   531
#if SUPPORT_PROFILE_ARB1
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   532
static inline GLenum arb1_shader_type(const MOJOSHADER_shaderType t)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   533
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   534
    if (t == MOJOSHADER_TYPE_VERTEX)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   535
        return GL_VERTEX_PROGRAM_ARB;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   536
    else if (t == MOJOSHADER_TYPE_PIXEL)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   537
        return GL_FRAGMENT_PROGRAM_ARB;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   538
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   539
    // !!! FIXME: geometry shaders?
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   540
    return GL_NONE;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   541
} // arb1_shader_type
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   542
760
6dc8d2cafc58 "Must Push" seemed more correct than "Must Load".
Ryan C. Gordon <icculus@icculus.org>
parents: 759
diff changeset
   543
static int impl_ARB1_MustPushConstantArrays(void) { return 0; }
6dc8d2cafc58 "Must Push" seemed more correct than "Must Load".
Ryan C. Gordon <icculus@icculus.org>
parents: 759
diff changeset
   544
static int impl_ARB1_MustPushSamplers(void) { return 0; }
411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   545
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   546
static int impl_ARB1_MaxUniforms(MOJOSHADER_shaderType shader_type)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   547
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   548
    GLint retval = 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   549
    const GLenum program_type = arb1_shader_type(shader_type);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   550
    if (program_type == GL_NONE)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   551
        return -1;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   552
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   553
    ctx->glGetProgramivARB(program_type, GL_MAX_PROGRAM_PARAMETERS_ARB, &retval);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   554
    return (int) retval;  // !!! FIXME: times four?
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   555
} // impl_ARB1_MaxUniforms
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   556
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   557
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   558
static int impl_ARB1_CompileShader(const MOJOSHADER_parseData *pd, GLuint *s)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   559
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   560
    GLint shaderlen = (GLint) pd->output_len;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   561
    const GLenum shader_type = arb1_shader_type(pd->shader_type);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   562
    GLuint shader = 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   563
    ctx->glGenProgramsARB(1, &shader);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   564
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   565
    ctx->glGetError();  // flush any existing error state.
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   566
    ctx->glBindProgramARB(shader_type, shader);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   567
    ctx->glProgramStringARB(shader_type, GL_PROGRAM_FORMAT_ASCII_ARB,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   568
                                shaderlen, pd->output);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   569
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   570
    if (ctx->glGetError() == GL_INVALID_OPERATION)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   571
    { 
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   572
        GLint pos = 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   573
        ctx->glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &pos);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   574
        const GLubyte *errstr = ctx->glGetString(GL_PROGRAM_ERROR_STRING_ARB);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   575
        snprintf(error_buffer, sizeof (error_buffer),
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   576
                  "ARB1 compile error at position %d: %s",
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   577
                  (int) pos, (const char *) errstr);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   578
        ctx->glBindProgramARB(shader_type, 0);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   579
        ctx->glDeleteProgramsARB(1, &shader);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   580
        *s = 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   581
        return 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   582
    } // if
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   583
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   584
    *s = shader;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   585
    return 1;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   586
} // impl_ARB1_CompileShader
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   587
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   588
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   589
static void impl_ARB1_DeleteShader(const GLuint _shader)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   590
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   591
    GLuint shader = _shader;  // const removal.
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   592
    ctx->glDeleteProgramsARB(1, &shader);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   593
} // impl_ARB1_DeleteShader
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   594
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   595
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   596
static void impl_ARB1_DeleteProgram(const GLuint program)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   597
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   598
    // no-op. ARB1 doesn't have real linked programs.
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   599
} // impl_GLSL_DeleteProgram
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   600
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   601
static GLint impl_ARB1_GetUniformLocation(MOJOSHADER_glProgram *program,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   602
                                          MOJOSHADER_glShader *shader, int idx)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   603
{
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   604
    return 0;  // no-op, we push this as one big-ass array now.
411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   605
} // impl_ARB1_GetUniformLocation
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   606
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   607
static GLint impl_ARB1_GetSamplerLocation(MOJOSHADER_glProgram *program,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   608
                                          MOJOSHADER_glShader *shader, int idx)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   609
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   610
    return shader->parseData->samplers[idx].index;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   611
} // impl_ARB1_GetSamplerLocation
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   612
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   613
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   614
static GLint impl_ARB1_GetAttribLocation(MOJOSHADER_glProgram *program, int idx)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   615
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   616
    return idx;  // map to vertex arrays in the same order as the parseData.
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   617
} // impl_ARB1_GetAttribLocation
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   618
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   619
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   620
static GLuint impl_ARB1_LinkProgram(MOJOSHADER_glShader *vshader,
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   621
                                    MOJOSHADER_glShader *pshader)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   622
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   623
    // there is no formal linking in ARB1...just return a unique value.
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   624
    static GLuint retval = 1;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   625
    return retval++;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   626
} // impl_ARB1_LinkProgram
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   627
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   628
765
076f3bd42329 Moved profileInitProgram to profileFinalInitProgram.
Ryan C. Gordon <icculus@icculus.org>
parents: 764
diff changeset
   629
static void impl_ARB1_FinalInitProgram(MOJOSHADER_glProgram *program)
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   630
{
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   631
    // no-op.
765
076f3bd42329 Moved profileInitProgram to profileFinalInitProgram.
Ryan C. Gordon <icculus@icculus.org>
parents: 764
diff changeset
   632
} // impl_ARB1_FinalInitProgram
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   633
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   634
411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   635
static void impl_ARB1_UseProgramObject(MOJOSHADER_glProgram *program)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   636
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   637
    GLuint vhandle = 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   638
    GLuint phandle = 0;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   639
    if (program != NULL)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   640
    {
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   641
        if (program->vertex != NULL)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   642
            vhandle = program->vertex->handle;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   643
        if (program->fragment != NULL)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   644
            phandle = program->fragment->handle;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   645
    } // if
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   646
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   647
    toggle_gl_state(GL_VERTEX_PROGRAM_ARB, vhandle != 0);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   648
    toggle_gl_state(GL_FRAGMENT_PROGRAM_ARB, phandle != 0);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   649
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   650
    ctx->glBindProgramARB(GL_VERTEX_PROGRAM_ARB, vhandle);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   651
    ctx->glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, phandle);
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   652
} // impl_ARB1_UseProgramObject
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   653
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   654
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   655
static void impl_ARB1_PushConstantArray(MOJOSHADER_glProgram *program,
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   656
                                        const MOJOSHADER_uniform *u,
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   657
                                        const GLfloat *f)
411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   658
{
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   659
    // no-op. Constant arrays are defined in source code for arb1.
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   660
} // impl_ARB1_PushConstantArray
411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   661
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   662
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   663
static void impl_ARB1_PushUniforms(void)
431
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   664
{
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   665
    // vertex shader uniforms come first in program->uniforms array.
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   666
    MOJOSHADER_shaderType shader_type = MOJOSHADER_TYPE_VERTEX;
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   667
    GLenum arb_shader_type = arb1_shader_type(shader_type);
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   668
    const MOJOSHADER_glProgram *program = ctx->bound_program;
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   669
    const uint32 count = program->uniform_count;
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   670
    const GLfloat *srcf = program->vs_uniforms_float4;
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   671
    const GLint *srci = program->vs_uniforms_int4;
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   672
    const GLint *srcb = program->vs_uniforms_bool;
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   673
    GLint loc = 0;
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   674
    uint32 i;
431
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   675
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   676
    assert(count > 0);  // shouldn't call this with nothing to do!
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   677
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   678
    for (i = 0; i < count; i++)
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   679
    {
767
806ba18f23aa Cleanups and fixes in ARB1 uniform pushing.
Ryan C. Gordon <icculus@icculus.org>
parents: 766
diff changeset
   680
        UniformMap *map = &program->uniforms[i];
770
b5e545408b02 Fixed incorrect variable name.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
   681
        const MOJOSHADER_shaderType uniform_shader_type = map->shader_type;
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   682
        const MOJOSHADER_uniform *u = map->uniform;
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   683
        const MOJOSHADER_uniformType type = u->type;
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   684
        const int size = u->array_count ? u->array_count : 1;
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   685
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   686
        assert(!u->constant);
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   687
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   688
        // Did we switch from vertex to pixel (to geometry, etc)?
770
b5e545408b02 Fixed incorrect variable name.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
   689
        if (shader_type != uniform_shader_type)
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   690
        {
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   691
            // we start with vertex, move to pixel, then to geometry, etc.
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   692
            //  The array should always be sorted as such.
770
b5e545408b02 Fixed incorrect variable name.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
   693
            if (uniform_shader_type == MOJOSHADER_TYPE_PIXEL)
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   694
            {
770
b5e545408b02 Fixed incorrect variable name.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
   695
                assert(shader_type == MOJOSHADER_TYPE_VERTEX);
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   696
                srcf = program->ps_uniforms_float4;
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   697
                srci = program->ps_uniforms_int4;
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   698
                srcb = program->ps_uniforms_bool;
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   699
                loc = 0;
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   700
            } // if
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   701
            else
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   702
            {
769
0627038d2032 Fixed wrong assert; triggered if there were no vertex shader uniforms.
Ryan C. Gordon <icculus@icculus.org>
parents: 768
diff changeset
   703
                // These should be ordered vertex, then pixel, then geometry.
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   704
                assert(0 && "Unexpected shader type");
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   705
            } // else
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   706
770
b5e545408b02 Fixed incorrect variable name.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
   707
            shader_type = uniform_shader_type;
b5e545408b02 Fixed incorrect variable name.
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
   708
            arb_shader_type = arb1_shader_type(uniform_shader_type);
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   709
        } // if
431
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   710
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   711
        if (type == MOJOSHADER_UNIFORM_FLOAT)
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   712
        {
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   713
            int i;
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   714
            for (i = 0; i < size; i++, srcf += 4, loc++)
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   715
                ctx->glProgramLocalParameter4fvARB(arb_shader_type, loc, srcf);
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   716
        } // if
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   717
        else if (type == MOJOSHADER_UNIFORM_INT)
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   718
        {
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   719
            int i;
1024
dbff93345a84 Test for the GL extension, not whether the entry point is NULL.
Ryan C. Gordon <icculus@icculus.org>
parents: 1023
diff changeset
   720
            if (ctx->have_GL_NV_gpu_program4)
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   721
            {
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   722
                // GL_NV_gpu_program4 has integer uniform loading support.
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   723
                for (i = 0; i < size; i++, srci += 4, loc++)
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   724
                    ctx->glProgramLocalParameterI4ivNV(arb_shader_type, loc, srci);
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   725
            } // if
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   726
            else
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   727
            {
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   728
                for (i = 0; i < size; i++, srci += 4, loc++)
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   729
                {
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   730
                    const GLfloat fv[4] = {
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   731
                        (GLfloat) srci[0], (GLfloat) srci[1],
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   732
                        (GLfloat) srci[2], (GLfloat) srci[3]
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   733
                    };
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   734
                    ctx->glProgramLocalParameter4fvARB(arb_shader_type, loc, fv);
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   735
                } // for
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   736
            } // else
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   737
        } // else if
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   738
        else if (type == MOJOSHADER_UNIFORM_BOOL)
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   739
        {
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   740
            int i;
1024
dbff93345a84 Test for the GL extension, not whether the entry point is NULL.
Ryan C. Gordon <icculus@icculus.org>
parents: 1023
diff changeset
   741
            if (ctx->have_GL_NV_gpu_program4)
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   742
            {
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   743
                // GL_NV_gpu_program4 has integer uniform loading support.
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   744
                for (i = 0; i < size; i++, srcb++, loc++)
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   745
                {
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   746
                    const GLint ib = (GLint) ((*srcb) ? 1 : 0);
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   747
                    const GLint iv[4] = { ib, ib, ib, ib };
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   748
                    ctx->glProgramLocalParameterI4ivNV(arb_shader_type, loc, iv);
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   749
                } // for
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   750
            } // if
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   751
            else
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   752
            {
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   753
                for (i = 0; i < size; i++, srcb++, loc++)
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   754
                {
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   755
                    const GLfloat fb = (GLfloat) ((*srcb) ? 1.0f : 0.0f);
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   756
                    const GLfloat fv[4] = { fb, fb, fb, fb };
768
9ba81386bd4d Optimize/cleanup in uniform array iteration work.
Ryan C. Gordon <icculus@icculus.org>
parents: 767
diff changeset
   757
                    ctx->glProgramLocalParameter4fvARB(arb_shader_type, loc, fv);
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   758
                } // for
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   759
            } // else
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   760
        } // else if
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   761
    } // for
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   762
} // impl_ARB1_PushUniforms
431
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   763
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   764
static void impl_ARB1_PushSampler(GLint loc, GLuint sampler)
411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   765
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   766
    // no-op in this profile...arb1 uses the texture units as-is.
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   767
    assert(loc == (GLint) sampler);
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   768
} // impl_ARB1_PushSampler
411
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   769
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   770
#endif  // SUPPORT_PROFILE_ARB1
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   771
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   772
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   773
const char *MOJOSHADER_glGetError(void)
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   774
{
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   775
    return error_buffer;
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   776
} // MOJOSHADER_glGetError
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   777
01bc1352c047 Rearranged profile-specific functions in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 410
diff changeset
   778
904
5989f0d4185a Added data argument to GL entry point lookup callback.
Ryan C. Gordon <icculus@icculus.org>
parents: 808
diff changeset
   779
static void *loadsym(MOJOSHADER_glGetProcAddress lookup, void *d,
5989f0d4185a Added data argument to GL entry point lookup callback.
Ryan C. Gordon <icculus@icculus.org>
parents: 808
diff changeset
   780
                     const char *fn, int *ext)
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   781
{
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   782
    void *retval = NULL;
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   783
    if (lookup != NULL)
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   784
    {
904
5989f0d4185a Added data argument to GL entry point lookup callback.
Ryan C. Gordon <icculus@icculus.org>
parents: 808
diff changeset
   785
        retval = lookup(fn, d);
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   786
        if (retval == NULL)
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   787
        {
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   788
            char arbfn[64];
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   789
            snprintf(arbfn, sizeof (arbfn), "%sARB", fn);
904
5989f0d4185a Added data argument to GL entry point lookup callback.
Ryan C. Gordon <icculus@icculus.org>
parents: 808
diff changeset
   790
            retval = lookup(arbfn, d);
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   791
        } // if
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   792
    } // if
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   793
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   794
    if (retval == NULL)
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   795
        *ext = 0;
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   796
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   797
    return retval;
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   798
} // loadsym
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   799
904
5989f0d4185a Added data argument to GL entry point lookup callback.
Ryan C. Gordon <icculus@icculus.org>
parents: 808
diff changeset
   800
static void lookup_entry_points(MOJOSHADER_glGetProcAddress lookup, void *d)
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   801
{
363
bea8bf9e5536 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 362
diff changeset
   802
    #define DO_LOOKUP(ext, typ, fn) { \
1023
8f4d16a3b380 Cleaned up GL symbol lookup slightly.
Ryan C. Gordon <icculus@icculus.org>
parents: 906
diff changeset
   803
        ctx->fn = (typ) loadsym(lookup, d, #fn, &ctx->have_##ext); \
363
bea8bf9e5536 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 362
diff changeset
   804
    }
bea8bf9e5536 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 362
diff changeset
   805
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   806
    DO_LOOKUP(base_opengl, PFNGLGETSTRINGPROC, glGetString);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   807
    DO_LOOKUP(base_opengl, PFNGLGETERRORPROC, glGetError);
276
1d7437469c94 Added MOJOSHADER_glMaxUniforms().
Ryan C. Gordon <icculus@icculus.org>
parents: 262
diff changeset
   808
    DO_LOOKUP(base_opengl, PFNGLGETINTEGERVPROC, glGetIntegerv);
358
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   809
    DO_LOOKUP(base_opengl, PFNGLENABLEPROC, glEnable);
f63e18cf642f Fixed MOJOSHADER_glBindProgram() for arb1 profile (thanks, Nicholas!).
Ryan C. Gordon <icculus@icculus.org>
parents: 355
diff changeset
   810
    DO_LOOKUP(base_opengl, PFNGLDISABLEPROC, glDisable);
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   811
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLDELETEOBJECTARBPROC, glDeleteObject);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   812
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLATTACHOBJECTARBPROC, glAttachObject);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   813
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLCOMPILESHADERARBPROC, glCompileShader);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   814
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLCREATEPROGRAMOBJECTARBPROC, glCreateProgramObject);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   815
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLCREATESHADEROBJECTARBPROC, glCreateShaderObject);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   816
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLGETINFOLOGARBPROC, glGetInfoLog);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   817
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLGETOBJECTPARAMETERIVARBPROC, glGetObjectParameteriv);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   818
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLGETUNIFORMLOCATIONARBPROC, glGetUniformLocation);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   819
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLLINKPROGRAMARBPROC, glLinkProgram);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   820
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLSHADERSOURCEARBPROC, glShaderSource);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   821
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLUNIFORM1IARBPROC, glUniform1i);
763
ef6489e7e263 Serious OpenGL glue surgery to push uniforms as one big array.
Ryan C. Gordon <icculus@icculus.org>
parents: 761
diff changeset
   822
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLUNIFORM1IVARBPROC, glUniform1iv);
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   823
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLUNIFORM4FVARBPROC, glUniform4fv);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   824
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLUNIFORM4IVARBPROC, glUniform4iv);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   825
    DO_LOOKUP(GL_ARB_shader_objects, PFNGLUSEPROGRAMOBJECTARBPROC, glUseProgramObject);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   826
    DO_LOOKUP(GL_ARB_vertex_shader, PFNGLDISABLEVERTEXATTRIBARRAYARBPROC, glDisableVertexAttribArray);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   827
    DO_LOOKUP(GL_ARB_vertex_shader, PFNGLENABLEVERTEXATTRIBARRAYARBPROC, glEnableVertexAttribArray);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   828
    DO_LOOKUP(GL_ARB_vertex_shader, PFNGLGETATTRIBLOCATIONARBPROC, glGetAttribLocation);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   829
    DO_LOOKUP(GL_ARB_vertex_shader, PFNGLVERTEXATTRIBPOINTERARBPROC, glVertexAttribPointer);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   830
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLVERTEXATTRIBPOINTERARBPROC, glVertexAttribPointer);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   831
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLGETPROGRAMIVARBPROC, glGetProgramivARB);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   832
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLGETPROGRAMSTRINGARBPROC, glGetProgramStringARB);
395
d2307cc5d6e7 Use local parameters, not environment params, in the arb1/nv2 profiles.
Ryan C. Gordon <icculus@icculus.org>
parents: 394
diff changeset
   833
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLPROGRAMLOCALPARAMETER4FVARBPROC, glProgramLocalParameter4fvARB);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   834
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLDELETEPROGRAMSARBPROC, glDeleteProgramsARB);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   835
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLGENPROGRAMSARBPROC, glGenProgramsARB);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   836
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLBINDPROGRAMARBPROC, glBindProgramARB);
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   837
    DO_LOOKUP(GL_ARB_vertex_program, PFNGLPROGRAMSTRINGARBPROC, glProgramStringARB);
431
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
   838
    DO_LOOKUP(GL_NV_gpu_program4, PFNGLPROGRAMLOCALPARAMETERI4IVNVPROC, glProgramLocalParameterI4ivNV);
333
2b36a1d72fa1 Wrote most of the arb1 OpenGL glue code.
Ryan C. Gordon <icculus@icculus.org>
parents: 323
diff changeset
   839
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   840
    #undef DO_LOOKUP
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   841
} // lookup_entry_points
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   842
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   843
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   844
static int verify_extension(const char *ext, int have, const char *extlist,
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   845
                            int major, int minor)
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   846
{
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   847
    if (have == 0)
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   848
        return 0;  // don't bother checking, we're missing an entry point.
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   849
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   850
    else if (!ctx->have_base_opengl)
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   851
        return 0;  // don't bother checking, we're missing basic functionality.
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   852
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   853
    // See if it's in the spec for this GL implementation's version.
236
8e2fc535b210 Support for half-float attribute arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 230
diff changeset
   854
    if (major >= 0)
8e2fc535b210 Support for half-float attribute arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 230
diff changeset
   855
    {
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   856
        if ( ((ctx->opengl_major << 16) | (ctx->opengl_minor & 0xFFFF)) >=
236
8e2fc535b210 Support for half-float attribute arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 230
diff changeset
   857
             ((major << 16) | (minor & 0xFFFF)) )
8e2fc535b210 Support for half-float attribute arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 230
diff changeset
   858
            return 1;
8e2fc535b210 Support for half-float attribute arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 230
diff changeset
   859
    } // if
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   860
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   861
    // Not available in the GL version, check the extension list.
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   862
    const char *ptr = strstr(extlist, ext);
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   863
    if (ptr == NULL)
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   864
        return 0;
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   865
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   866
    const char endchar = ptr[strlen(ext)];
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   867
    if ((endchar == '\0') || (endchar == ' '))
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   868
        return 1;  // extension is in the list.
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   869
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   870
    return 0;  // just not supported, fail.
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   871
} // verify_extension
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   872
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   873
407
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   874
static void parse_opengl_version_str(const char *verstr, int *maj, int *min)
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   875
{
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   876
    if (verstr == NULL)
407
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   877
        *maj = *min = 0;
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   878
    else
407
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   879
        sscanf(verstr, "%d.%d", maj, min);
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   880
} // parse_opengl_version_str
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   881
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   882
1070
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   883
#if SUPPORT_PROFILE_GLSL
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   884
static inline int glsl_version_atleast(const int major, const int minor)
407
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   885
{
1070
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   886
    return ( ((ctx->glsl_major << 16) | (ctx->glsl_minor & 0xFFFF)) >=
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   887
             ((major << 16) | (minor & 0xFFFF)) );
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   888
} // glsl_version_atleast
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   889
#endif
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   890
1070
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   891
static void detect_glsl_version(void)
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   892
{
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   893
    ctx->glsl_major = ctx->glsl_minor = 0;
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   894
808
b7196cc07283 Allow compiler to strip disabled glsl120 and nvX profiles as dead code.
Ryan C. Gordon <icculus@icculus.org>
parents: 807
diff changeset
   895
#if SUPPORT_PROFILE_GLSL
1070
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   896
    #if PLATFORM_MACOSX
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   897
    // If running on Mac OS X <= 10.4, don't ever use GLSL, even if
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   898
    //  the system claims it is available.
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   899
    if (!macosx_version_atleast(10, 5, 0))
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   900
        return;
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   901
    #endif
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   902
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   903
    if ( 0/* !!! FIXME: (ctx->opengl_major >= 2)*/ ||
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   904
         ( ctx->have_GL_ARB_shader_objects &&
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   905
           ctx->have_GL_ARB_vertex_shader &&
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   906
           ctx->have_GL_ARB_fragment_shader &&
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   907
           ctx->have_GL_ARB_shading_language_100 ) )
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   908
    {
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   909
        // the GL2.0 and ARB enum is the same value.
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   910
        const GLenum enumval = GL_SHADING_LANGUAGE_VERSION_ARB;
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   911
        ctx->glGetError();  // flush any existing error state.
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   912
        const char *str = (const char *) ctx->glGetString(enumval);
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   913
        if (ctx->glGetError() == GL_INVALID_ENUM)
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   914
            str = NULL;
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   915
        parse_opengl_version_str(str, &ctx->glsl_major, &ctx->glsl_minor);
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   916
    } // if
808
b7196cc07283 Allow compiler to strip disabled glsl120 and nvX profiles as dead code.
Ryan C. Gordon <icculus@icculus.org>
parents: 807
diff changeset
   917
#endif
1070
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   918
} // detect_glsl_version
407
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   919
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   920
904
5989f0d4185a Added data argument to GL entry point lookup callback.
Ryan C. Gordon <icculus@icculus.org>
parents: 808
diff changeset
   921
static void load_extensions(MOJOSHADER_glGetProcAddress lookup, void *d)
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   922
{
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   923
    const char *extlist = NULL;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   924
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   925
    ctx->have_base_opengl = 1;
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   926
    ctx->have_GL_ARB_vertex_program = 1;
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   927
    ctx->have_GL_ARB_fragment_program = 1;
388
5930c6cd840e Fixed detection of OpenGL extensions needed by nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 363
diff changeset
   928
    ctx->have_GL_NV_vertex_program2_option = 1;
5930c6cd840e Fixed detection of OpenGL extensions needed by nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 363
diff changeset
   929
    ctx->have_GL_NV_fragment_program2 = 1;
421
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
   930
    ctx->have_GL_NV_vertex_program3 = 1;
432
6c59f6c0456a Fixed uninitialized variable in OpenGL glue's nv4 profile detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 431
diff changeset
   931
    ctx->have_GL_NV_gpu_program4 = 1;
237
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   932
    ctx->have_GL_ARB_shader_objects = 1;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   933
    ctx->have_GL_ARB_vertex_shader = 1;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   934
    ctx->have_GL_ARB_fragment_shader = 1;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   935
    ctx->have_GL_ARB_shading_language_100 = 1;
09f35dfc1d7e OpenGL glue now allows for multiple contexts.
Ryan C. Gordon <icculus@icculus.org>
parents: 236
diff changeset
   936
    ctx->have_GL_NV_half_float = 1;
449
5a978f37e750 Added support for GL_ARB_half_float_vertex and GL_OES_vertex_half_float.
Ryan C. Gordon <icculus@icculus.org>
parents: 448
diff changeset
   937
    ctx->have_GL_ARB_half_float_vertex = 1;
5a978f37e750 Added support for GL_ARB_half_float_vertex and GL_OES_vertex_half_float.
Ryan C. Gordon <icculus@icculus.org>
parents: 448
diff changeset
   938
    ctx->have_GL_OES_vertex_half_float = 1;
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   939
904
5989f0d4185a Added data argument to GL entry point lookup callback.
Ryan C. Gordon <icculus@icculus.org>
parents: 808
diff changeset
   940
    lookup_entry_points(lookup, d);
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   941
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   942
    if (!ctx->have_base_opengl)
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   943
        set_error("missing basic OpenGL entry points");
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   944
    else
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   945
    {
1070
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   946
        const char *str = (const char *) ctx->glGetString(GL_VERSION);
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   947
        parse_opengl_version_str(str, &ctx->opengl_major, &ctx->opengl_minor);
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   948
        extlist = (const char *) ctx->glGetString(GL_EXTENSIONS);
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   949
    } // else
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   950
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   951
    if (extlist == NULL)
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   952
        extlist = "";  // just in case.
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   953
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   954
    #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
   955
        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
   956
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   957
    VERIFY_EXT(GL_ARB_vertex_program, -1, -1);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   958
    VERIFY_EXT(GL_ARB_fragment_program, -1, -1);
1070
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   959
    VERIFY_EXT(GL_ARB_shader_objects, -1, -1);
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   960
    VERIFY_EXT(GL_ARB_vertex_shader, -1, -1);
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   961
    VERIFY_EXT(GL_ARB_fragment_shader, -1, -1);
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   962
    VERIFY_EXT(GL_ARB_shading_language_100, -1, -1);
420
bfcebc3bf560 Corrected test for nv2 profile support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 416
diff changeset
   963
    VERIFY_EXT(GL_NV_vertex_program2_option, -1, -1);
bfcebc3bf560 Corrected test for nv2 profile support in OpenGL glue.
Ryan C. Gordon <icculus@icculus.org>
parents: 416
diff changeset
   964
    VERIFY_EXT(GL_NV_fragment_program2, -1, -1);
421
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
   965
    VERIFY_EXT(GL_NV_vertex_program3, -1, -1);
236
8e2fc535b210 Support for half-float attribute arrays.
Ryan C. Gordon <icculus@icculus.org>
parents: 230
diff changeset
   966
    VERIFY_EXT(GL_NV_half_float, -1, -1);
449
5a978f37e750 Added support for GL_ARB_half_float_vertex and GL_OES_vertex_half_float.
Ryan C. Gordon <icculus@icculus.org>
parents: 448
diff changeset
   967
    VERIFY_EXT(GL_ARB_half_float_vertex, 3, 0);
5a978f37e750 Added support for GL_ARB_half_float_vertex and GL_OES_vertex_half_float.
Ryan C. Gordon <icculus@icculus.org>
parents: 448
diff changeset
   968
    VERIFY_EXT(GL_OES_vertex_half_float, -1, -1);
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   969
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   970
    #undef VERIFY_EXT
1070
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   971
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   972
    detect_glsl_version();
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   973
} // load_extensions
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   974
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   975
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   976
static int valid_profile(const char *profile)
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   977
{
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   978
    if (!ctx->have_base_opengl)
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   979
        return 0;
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
   980
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   981
    #define MUST_HAVE(p, x) \
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   982
        if (!ctx->have_##x) { set_error(#p " profile needs " #x); return 0; }
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   983
1070
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   984
    // we might actually _have_ maj.min, but forcibly disabled GLSL elsewhere.
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   985
    #define MUST_HAVE_GLSL(p, maj, min) \
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   986
        if (!glsl_version_atleast(maj, min)) { \
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   987
            set_error(#p " profile needs missing GLSL support"); return 0; \
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   988
        }
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
   989
291
2453590bae1b Fix/disable annoying Visual C++ level 4 warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 285
diff changeset
   990
    if (profile == NULL)
2453590bae1b Fix/disable annoying Visual C++ level 4 warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 285
diff changeset
   991
    {
2453590bae1b Fix/disable annoying Visual C++ level 4 warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 285
diff changeset
   992
        set_error("NULL profile");
2453590bae1b Fix/disable annoying Visual C++ level 4 warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 285
diff changeset
   993
        return 0;
2453590bae1b Fix/disable annoying Visual C++ level 4 warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 285
diff changeset
   994
    } // if
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   995
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   996
    #if SUPPORT_PROFILE_ARB1
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   997
    else if (strcmp(profile, MOJOSHADER_PROFILE_ARB1) == 0)
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   998
    {
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
   999
        MUST_HAVE(MOJOSHADER_PROFILE_ARB1, GL_ARB_vertex_program);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
  1000
        MUST_HAVE(MOJOSHADER_PROFILE_ARB1, GL_ARB_fragment_program);
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
  1001
    } // else if
808
b7196cc07283 Allow compiler to strip disabled glsl120 and nvX profiles as dead code.
Ryan C. Gordon <icculus@icculus.org>
parents: 807
diff changeset
  1002
    #endif
323
b60c88ec8182 Initial work on ARB1 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 321
diff changeset
  1003
808
b7196cc07283 Allow compiler to strip disabled glsl120 and nvX profiles as dead code.
Ryan C. Gordon <icculus@icculus.org>
parents: 807
diff changeset
  1004
    #if SUPPORT_PROFILE_ARB1_NV
361
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
  1005
    else if (strcmp(profile, MOJOSHADER_PROFILE_NV2) == 0)
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
  1006
    {
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
  1007
        MUST_HAVE(MOJOSHADER_PROFILE_NV2, GL_ARB_vertex_program);
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
  1008
        MUST_HAVE(MOJOSHADER_PROFILE_NV2, GL_ARB_fragment_program);
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
  1009
        MUST_HAVE(MOJOSHADER_PROFILE_NV2, GL_NV_vertex_program2_option);
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
  1010
        MUST_HAVE(MOJOSHADER_PROFILE_NV2, GL_NV_fragment_program2);
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
  1011
    } // else if
421
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
  1012
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
  1013
    else if (strcmp(profile, MOJOSHADER_PROFILE_NV3) == 0)
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
  1014
    {
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
  1015
        MUST_HAVE(MOJOSHADER_PROFILE_NV3, GL_ARB_vertex_program);
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
  1016
        MUST_HAVE(MOJOSHADER_PROFILE_NV3, GL_ARB_fragment_program);
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
  1017
        MUST_HAVE(MOJOSHADER_PROFILE_NV3, GL_NV_vertex_program3);
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
  1018
        MUST_HAVE(MOJOSHADER_PROFILE_NV3, GL_NV_fragment_program2);
bfd3d95273ec First piece of work on nv3 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 420
diff changeset
  1019
    } // else if
431
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
  1020
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
  1021
    else if (strcmp(profile, MOJOSHADER_PROFILE_NV4) == 0)
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
  1022
    {
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
  1023
        MUST_HAVE(MOJOSHADER_PROFILE_NV4, GL_NV_gpu_program4);
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
  1024
    } // else if
361
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
  1025
    #endif
9fa6652cacbd First (untested) work on nv2 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 359
diff changeset
  1026
808
b7196cc07283 Allow compiler to strip disabled glsl120 and nvX profiles as dead code.
Ryan C. Gordon <icculus@icculus.org>
parents: 807
diff changeset
  1027
    #if SUPPORT_PROFILE_GLSL120
1070
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
  1028
    else if (strcmp(profile, MOJOSHADER_PROFILE_GLSL120) == 0)
407
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
  1029
    {
1070
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
  1030
        MUST_HAVE_GLSL(MOJOSHADER_PROFILE_GLSL120, 1, 20);
407
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
  1031
    } // else if
808
b7196cc07283 Allow compiler to strip disabled glsl120 and nvX profiles as dead code.
Ryan C. Gordon <icculus@icculus.org>
parents: 807
diff changeset
  1032
    #endif
407
620d48c5d13a Added framework for GLSL 1.20 support.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
  1033
808
b7196cc07283 Allow compiler to strip disabled glsl120 and nvX profiles as dead code.
Ryan C. Gordon <icculus@icculus.org>
parents: 807
diff changeset
  1034
    #if SUPPORT_PROFILE_GLSL
1070
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
  1035
    else if (strcmp(profile, MOJOSHADER_PROFILE_GLSL) == 0)
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
  1036
    {
1070
32eb4fe78351 Reworked GLSL extension and version detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 1069
diff changeset
  1037
        MUST_HAVE_GLSL(MOJOSHADER_PROFILE_GLSL, 1, 10);
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
  1038
    } // else if
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
  1039
    #endif
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
  1040
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
  1041
    else
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
  1042
    {
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
  1043
        set_error("unknown or unsupported profile");
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
  1044
        return 0;
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
  1045
    } // else
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
  1046
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
  1047
    #undef MUST_HAVE
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
  1048
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
  1049
    return 1;
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
  1050
} // valid_profile
229
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
  1051
67a3d459d865 OpenGL extension lookup and entry point loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 226
diff changeset
  1052
422
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
  1053
static const char *profile_priorities[] = {
808
b7196cc07283 Allow compiler to strip disabled glsl120 and nvX profiles as dead code.
Ryan C. Gordon <icculus@icculus.org>
parents: 807
diff changeset
  1054
#if SUPPORT_PROFILE_GLSL120
b7196cc07283 Allow compiler to strip disabled glsl120 and nvX profiles as dead code.
Ryan C. Gordon <icculus@icculus.org>
parents: 807
diff changeset
  1055
    MOJOSHADER_PROFILE_GLSL120,
b7196cc07283 Allow compiler to strip disabled glsl120 and nvX profiles as dead code.
Ryan C. Gordon <icculus@icculus.org>
parents: 807
diff changeset
  1056
#endif
422
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
  1057
#if SUPPORT_PROFILE_GLSL
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
  1058
    MOJOSHADER_PROFILE_GLSL,
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
  1059
#endif
808
b7196cc07283 Allow compiler to strip disabled glsl120 and nvX profiles as dead code.
Ryan C. Gordon <icculus@icculus.org>
parents: 807
diff changeset
  1060
#if SUPPORT_PROFILE_ARB1_NV
431
0d0cbe10db02 First shot at nv4 profile.
Ryan C. Gordon <icculus@icculus.org>
parents: 424
diff changeset
  1061
    MOJOSHADER_PROFILE_NV4,
422
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
  1062
    MOJOSHADER_PROFILE_NV3,
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
  1063
    MOJOSHADER_PROFILE_NV2,
808
b7196cc07283 Allow compiler to strip disabled glsl120 and nvX profiles as dead code.
Ryan C. Gordon <icculus@icculus.org>
parents: 807
diff changeset
  1064
#endif
b7196cc07283 Allow compiler to strip disabled glsl120 and nvX profiles as dead code.
Ryan C. Gordon <icculus@icculus.org>
parents: 807
diff changeset
  1065
#if SUPPORT_PROFILE_ARB1
422
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
  1066
    MOJOSHADER_PROFILE_ARB1,
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
  1067
#endif
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
  1068
};
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
  1069
904
5989f0d4185a Added data argument to GL entry point lookup callback.
Ryan C. Gordon <icculus@icculus.org>
parents: 808
diff changeset
  1070
int MOJOSHADER_glAvailableProfiles(MOJOSHADER_glGetProcAddress lookup, void *d,
422
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
  1071
                                   const char **profs, const int size)
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
  1072
{
422
1d5eaf3a4c98 Added MOJOSHADER_glAvailableProfiles().
Ryan C. Gordon <icculus@icculus.org>
parents: 421
diff changeset
  1073
    int retval = 0;
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
  1074
    MOJOSHADER_glContext _ctx;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
  1075
    MOJOSHADER_glContext *current_ctx = ctx;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
  1076
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
  1077
    ctx = &_ctx;
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
  1078
    memset(ctx, '\0', sizeof (MOJOSHADER_glContext));
904
5989f0d4185a Added data argument to GL entry point lookup callback.
Ryan C. Gordon <icculus@icculus.org>
parents: 808
diff changeset
  1079
    load_extensions(lookup, d);
262
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
  1080
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
  1081
    if (ctx->have_base_opengl)
0f1531ac2578 Implemented MOJOSHADER_glBestProfile().
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
  1082
    {
798
5dd67cc04cf9 Bunch of small tweaks to make this compile as C++ code without errors/warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 797
diff changeset
  1083
        size_t i;
422
1d5eaf3a4c98 Added MOJOSHADER_