--- /dev/null
+/* $Id$
+
+This file is part of gldbg
+Copyright © 2009 Mikko Rasa, Mikkosoft Productions
+Distributed under the GPL
+*/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <dlfcn.h>
+#include <sys/uio.h>
+#include <GL/gl.h>
+#include "functions.h"
+
+static inline void *glsym(const char *sym)
+{
+ static void *libgl=NULL;
+ if(!libgl)
+ {
+ libgl=dlopen("libGL.so", RTLD_NOW);
+ if(!libgl)
+ {
+ fprintf(stderr, "Could not open libGL: %s\n", dlerror());
+ abort();
+ }
+ }
+
+ return dlsym(libgl, sym);
+}
+
+char *buffer=0;
+char *write_pos;
+struct iovec *iovecs=0;
+struct iovec *cur_vec;
+
+static inline void next_vec()
+{
+ if(write_pos!=cur_vec->iov_base)
+ {
+ cur_vec->iov_len=write_pos-(char *)cur_vec->iov_base;
+ ++cur_vec;
+ cur_vec->iov_base=write_pos;
+ }
+}
+
+static inline void write_bytes(const char *ptr, unsigned size)
+{
+ unsigned i;
+ for(i=0; i<size; ++i)
+ *write_pos++=*ptr++;
+}
+
+static inline void write_char(char v)
+{
+ *write_pos++=v;
+}
+
+static inline void write_short(short v)
+{
+ write_bytes((char *)&v, sizeof(short));
+}
+
+static inline void write_int(int v)
+{
+ write_bytes((char *)&v, sizeof(int));
+}
+
+static inline void write_long(long v)
+{
+ write_bytes((char *)&v, sizeof(long));
+}
+
+static inline void write_ulong(unsigned long v)
+{
+ write_bytes((char *)&v, sizeof(unsigned long));
+}
+
+static inline void write_longlong(long long v)
+{
+ write_bytes((char *)&v, sizeof(long long));
+}
+
+static inline void write_float(float v)
+{
+ write_bytes((char *)&v, sizeof(float));
+}
+
+static inline void write_double(float v)
+{
+ write_bytes((char *)&v, sizeof(double));
+}
+
+static inline void write_pointer(const void *p)
+{
+ write_bytes((char *)&p, sizeof(void *));
+}
+
+static inline void write_data(const void *data, unsigned size)
+{
+ write_int(size);
+ next_vec();
+ cur_vec->iov_base=(void *)data;
+ cur_vec->iov_len=size;
+ ++cur_vec;
+ cur_vec->iov_base=write_pos;
+}
+
+static inline void write_string(const unsigned char *s)
+{
+ write_data(s, strlen(s));
+ /*int len=strlen(s);
+ write_int(len);
+ write_bytes(s, len);*/
+}
+
+static inline void begin_packet(int func)
+{
+ if(!buffer)
+ buffer=(char *)malloc(1024);
+ if(!iovecs)
+ iovecs=(struct iovec *)malloc(16*sizeof(struct iovec));
+ write_pos=buffer;
+ cur_vec=iovecs;
+ cur_vec->iov_base=write_pos;
+ write_short(func);
+}
+
+static inline void send_packet()
+{
+ static int fd=-1;
+ if(fd<0)
+ {
+ const char *var=getenv("GLWRAP_FD");
+ if(var)
+ fd=strtol(var, NULL, 0);
+ else
+ fd=2;
+ }
+ next_vec();
+ writev(fd, iovecs, cur_vec-iovecs);
+}
+
+static inline int typesize(GLenum type)
+{
+ switch(type)
+ {
+ case GL_BYTE: return sizeof(GLbyte);
+ case GL_SHORT: return sizeof(GLshort);
+ case GL_INT: return sizeof(GLint);
+ case GL_UNSIGNED_BYTE: return sizeof(GLubyte);
+ case GL_UNSIGNED_SHORT: return sizeof(GLushort);
+ case GL_UNSIGNED_INT: return sizeof(GLuint);
+ case GL_FLOAT: return sizeof(GLfloat);
+ case GL_DOUBLE: return sizeof(GLdouble);
+ // Short and byte packed types are broken
+ default: return 1;
+ }
+}
+
+static inline int formatsize(GLenum format)
+{
+ switch(format)
+ {
+ case GL_COLOR_INDEX: return 1;
+ case GL_STENCIL_INDEX: return 1;
+ case GL_DEPTH_COMPONENT: return 1;
+ case GL_RED: return 1;
+ case GL_GREEN: return 1;
+ case GL_BLUE: return 1;
+ case GL_ALPHA: return 1;
+ case GL_RGB: return 3;
+ case GL_RGBA: return 4;
+ case GL_BGR: return 3;
+ case GL_BGRA: return 4;
+ case GL_LUMINANCE: return 1;
+ case GL_LUMINANCE_ALPHA: return 2;
+ default: return 1;
+ }
+}
+
+static inline int paramsize(GLenum pname)
+{
+ switch(pname)
+ {
+ // Lighting and material
+ case GL_AMBIENT: return 4;
+ case GL_DIFFUSE: return 4;
+ case GL_AMBIENT_AND_DIFFUSE: return 4;
+ case GL_SPECULAR: return 4;
+ case GL_EMISSION: return 4;
+ case GL_SHININESS: return 1;
+ case GL_COLOR_INDEXES: return 3;
+ case GL_POSITION: return 4;
+ case GL_SPOT_DIRECTION: return 3;
+ case GL_SPOT_EXPONENT: return 1;
+ case GL_SPOT_CUTOFF: return 1;
+ case GL_CONSTANT_ATTENUATION: return 1;
+ case GL_LINEAR_ATTENUATION: return 1;
+ case GL_QUADRATIC_ATTENUATION: return 1;
+ case GL_LIGHT_MODEL_AMBIENT: return 4;
+ case GL_LIGHT_MODEL_LOCAL_VIEWER: return 1;
+ case GL_LIGHT_MODEL_TWO_SIDE: return 1;
+ case GL_LIGHT_MODEL_COLOR_CONTROL: return 1;
+
+ // Texture
+ case GL_TEXTURE_WRAP_S: return 1;
+ case GL_TEXTURE_WRAP_T: return 1;
+ case GL_TEXTURE_WRAP_R: return 1;
+ case GL_TEXTURE_MIN_FILTER: return 1;
+ case GL_TEXTURE_MAG_FILTER: return 1;
+ case GL_TEXTURE_BORDER_COLOR: return 4;
+ case GL_TEXTURE_MIN_LOD: return 1;
+ case GL_TEXTURE_MAX_LOD: return 1;
+ case GL_TEXTURE_BASE_LEVEL: return 1;
+ case GL_TEXTURE_MAX_LEVEL: return 1;
+ case GL_TEXTURE_LOD_BIAS: return 1;
+ case GL_DEPTH_TEXTURE_MODE: return 1;
+ case GL_TEXTURE_COMPARE_MODE: return 1;
+ case GL_TEXTURE_COMPARE_FUNC: return 1;
+ case GL_GENERATE_MIPMAP: return 1;
+ default: return 1;
+ }
+}
+
+static inline int mapsize(GLenum target)
+{
+ return 1;
+}
+
+#include "glwrap.funcs"
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