1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/Makefile	Thu Jun 23 05:19:40 2011 +0300
     1.3 @@ -0,0 +1,20 @@
     1.4 +src = $(wildcard *.c)
     1.5 +obj = $(src:.c=.o)
     1.6 +bin = test
     1.7 +
     1.8 +CC = gcc
     1.9 +CFLAGS = -pedantic -Wall -g
    1.10 +LDFLAGS = $(libgl)
    1.11 +
    1.12 +ifeq ($(shell uname -s), Darwin)
    1.13 +	libgl = -framework OpenGL -framework GLUT
    1.14 +else
    1.15 +	libgl = -lGL -lGLU -lglut
    1.16 +endif
    1.17 +
    1.18 +$(bin): $(obj)
    1.19 +	$(CC) -o $@ $(obj) $(LDFLAGS)
    1.20 +
    1.21 +.PHONY: clean
    1.22 +clean:
    1.23 +	rm -f $(obj) $(bin)

     2.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     2.2 +++ b/sanegl.c	Thu Jun 23 05:19:40 2011 +0300
     2.3 @@ -0,0 +1,73 @@
     2.4 +#include <stdio.h>
     2.5 +
     2.6 +#define SANEGL_IMPL_
     2.7 +#include "sanegl.h"
     2.8 +
     2.9 +struct vertex {
    2.10 +	float pos[4];
    2.11 +	float color[4];
    2.12 +	float tex[2];
    2.13 +	float norm[3];
    2.14 +};
    2.15 +
    2.16 +static const int mode_verts[] = {
    2.17 +	1,		/* GL_POINTS */
    2.18 +	2,		/* GL_LINES */
    2.19 +	-1,		/* GL_LINE_LOOP TODO */
    2.20 +	-1,		/* GL_LINE_STRIP TODO */
    2.21 +	3,		/* GL_TRIANGLES */
    2.22 +	-1,		/* GL_TRIANGLE_STRIP TODO */
    2.23 +	-1,		/* GL_TRIANGLE_FAN TODO */
    2.24 +	6,		/* GL_QUADS (two triangles) */
    2.25 +	-1,		/* GL_QUAD_STRIP TODO */
    2.26 +	-1		/* GL_POLYGON	TODO */
    2.27 +};
    2.28 +
    2.29 +static struct vertex vcur = {
    2.30 +	{0, 0, 0, 1},	/* position */
    2.31 +	{1, 1, 1, 1},	/* color */
    2.32 +	{0, 0},			/* tex-coord */
    2.33 +	{0, 0, 0}		/* normal */
    2.34 +};
    2.35 +
    2.36 +
    2.37 +void glBegin(GLenum mode)
    2.38 +{
    2.39 +	printf("glBegin\n");
    2.40 +}
    2.41 +
    2.42 +void glEnd(void)
    2.43 +{
    2.44 +	printf("glEnd\n");
    2.45 +}
    2.46 +
    2.47 +void glVertex4f(GLfloat x, GLfloat y, GLfloat z, GLfloat w)
    2.48 +{
    2.49 +	vcur.pos[0] = x;
    2.50 +	vcur.pos[1] = y;
    2.51 +	vcur.pos[2] = z;
    2.52 +	vcur.pos[3] = w;
    2.53 +
    2.54 +	varr[nvert++] = vcur;
    2.55 +}
    2.56 +
    2.57 +void glColor4f(GLfloat r, GLfloat g, GLfloat, b, GLfloat a)
    2.58 +{
    2.59 +	vcur.color[0] = r;
    2.60 +	vcur.color[1] = g;
    2.61 +	vcur.color[2] = b;
    2.62 +	vcur.color[3] = a;
    2.63 +}
    2.64 +
    2.65 +void glNormal3f(GLfloat x, GLfloat y, GLfloat z)
    2.66 +{
    2.67 +	vcur.normal[0] = x;
    2.68 +	vcur.normal[1] = y;
    2.69 +	vcur.normal[2] = z;
    2.70 +}
    2.71 +
    2.72 +void glTexCoord4f(GLfloat x, GLfloat y)
    2.73 +{
    2.74 +	vcur.tex[0] = x;
    2.75 +	vcur.tex[1] = y;
    2.76 +}

     3.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     3.2 +++ b/sanegl.h	Thu Jun 23 05:19:40 2011 +0300
     3.3 @@ -0,0 +1,19 @@
     3.4 +#ifndef SANEGL_H_
     3.5 +#define SANEGL_H_
     3.6 +
     3.7 +#ifndef __APPLE__
     3.8 +#include <GL/gl.h>
     3.9 +#else
    3.10 +#include <OpenGL/gl.h>
    3.11 +#endif
    3.12 +
    3.13 +#ifndef GL_QUADS
    3.14 +#define GL_QUADS	7
    3.15 +#endif
    3.16 +
    3.17 +void glBegin(GLenum mode);
    3.18 +void glEnd(void);
    3.19 +
    3.20 +#include "sanegl_attr.h"
    3.21 +
    3.22 +#endif	/* SANEGL_H_ */

     4.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     4.2 +++ b/sanegl_attr.h	Thu Jun 23 05:19:40 2011 +0300
     4.3 @@ -0,0 +1,161 @@
     4.4 +#ifndef SANEGL_ATTR_H_
     4.5 +#define SANEGL_ATTR_H_
     4.6 +
     4.7 +#ifndef SANEGL_IMPL_
     4.8 +/* in the header file just expand to the prototypes */
     4.9 +#define GLATTR1(name, type, suffix, conv)	\
    4.10 +	void gl##name##1##suffix(GL##type x);
    4.11 +
    4.12 +#define GLATTR2(name, type, suffix, conv)	\
    4.13 +	void gl##name##2##suffix(GL##type x, GL##type y);
    4.14 +
    4.15 +#define GLATTR3(name, type, suffix, conv) \
    4.16 +	void gl##name##3##suffix(GL##type x, GL##type y, GL##type z);
    4.17 +
    4.18 +#define GLATTR4(name, type, suffix, conv)	\
    4.19 +	void gl##name##3##suffix(GL##type x, GL##type y, GL##type z, GL##type w);
    4.20 +
    4.21 +#define GLATTR1V(name, type, suffix, conv) \
    4.22 +	void gl##name##1##suffix##v(const GL##type *p);
    4.23 +
    4.24 +#define GLATTR2V(name, type, suffix, conv) \
    4.25 +	void gl##name##2##suffix##v(const GL##type *p);
    4.26 +
    4.27 +#define GLATTR3V(name, type, suffix, conv) \
    4.28 +	void gl##name##3##suffix##v(const GL##type *p);
    4.29 +
    4.30 +#define GLATTR4V(name, type, suffix, conv) \
    4.31 +	void gl##name##4##suffix##v(const GL##type *p);
    4.32 +#else
    4.33 +/* this full expansion will be performed in the implementation (sanegl.c) */
    4.34 +#define GLATTR1(name, type, suffix, conv)	\
    4.35 +	void gl##name##1##suffix(GL##type x) \
    4.36 +		{ gl##name##4f(conv(x), 0, 0, 1); }
    4.37 +
    4.38 +#define GLATTR2(name, type, suffix, conv)	\
    4.39 +	void gl##name##2##suffix(GL##type x, GL##type y) \
    4.40 +		{ gl##name##4f(conv(x), conv(y), 0, 1); }
    4.41 +
    4.42 +#define GLATTR3(name, type, suffix, conv)	\
    4.43 +	void gl##name##3##suffix(GL##type x, GL##type y, GL##type z) \
    4.44 +		{ gl##name##4f(conv(x), conv(y), conv(z), 1); }
    4.45 +
    4.46 +#define GLATTR4(name, type, suffix, conv)	\
    4.47 +	void gl##name##3##suffix(GL##type x, GL##type y, GL##type z, GL##type w) \
    4.48 +		{ gl##name##4f(conv(x), conv(y), conv(z), conv(w)); }
    4.49 +
    4.50 +#define GLATTR1V(name, type, suffix, conv) \
    4.51 +	void gl##name##1##suffix##v(const GL##type *p) \
    4.52 +		{ gl##name##4f(conv(*p), 0, 0, 1); }
    4.53 +
    4.54 +#define GLATTR2V(name, type, suffix, conv) \
    4.55 +	void gl##name##2##suffix##v(const GL##type *p) \
    4.56 +		{ gl##name##4f(conv(p[0]), conv(p[1]), 0, 1); }
    4.57 +
    4.58 +#define GLATTR3V(name, type, suffix, conv) \
    4.59 +	void gl##name##3##suffix##v(const GL##type *p) \
    4.60 +		{ gl##name##4f(conv(p[0]), conv(p[1]), conv(p[2]), 1); }
    4.61 +
    4.62 +#define GLATTR4V(name, type, suffix, conv) \
    4.63 +	void gl##name##4##suffix##v(const GL##type *p) \
    4.64 +		{ gl##name##4f(conv(p[0]), conv(p[1]), conv(p[2]), conv(p[3])); }
    4.65 +#endif
    4.66 +
    4.67 +/* n-arg functions */
    4.68 +GLATTR2(Vertex, float, f, (float))
    4.69 +GLATTR3(Vertex, float, f, (float))
    4.70 +
    4.71 +GLATTR2(Vertex, double, d, (float))
    4.72 +GLATTR3(Vertex, double, d, (float))
    4.73 +GLATTR4(Vertex, double, d, (float))
    4.74 +
    4.75 +GLATTR2(Vertex, int, i, (float))
    4.76 +GLATTR3(Vertex, int, i, (float))
    4.77 +GLATTR4(Vertex, int, i, (float))
    4.78 +
    4.79 +GLATTR2(Vertex, short, s, (float))
    4.80 +GLATTR3(Vertex, short, s, (float))
    4.81 +GLATTR4(Vertex, short, s, (float))
    4.82 +
    4.83 +GLATTR3(Color, float, f, (float))
    4.84 +GLATTR3(Color, double, d, (float))
    4.85 +GLATTR4(Color, double, d, (float))
    4.86 +
    4.87 +GLATTR3(Color, byte, b, (1.0f / CHAR_MAX) * (float))
    4.88 +GLATTR4(Color, byte, b, (1.0f / CHAR_MAX) * (float))
    4.89 +
    4.90 +GLATTR3(Color, ubyte, ub, (1.0f / UCHAR_MAX) * (float))
    4.91 +GLATTR4(Color, ubyte, ub, (1.0f / UCHAR_MAX) * (float))
    4.92 +
    4.93 +GLATTR3(Color, short, s, (1.0f / SHRT_MAX) * (float))
    4.94 +GLATTR4(Color, short, s, (1.0f / SHRT_MAX) * (float))
    4.95 +
    4.96 +GLATTR3(Color, ushort, us, (1.0f / USHRT_MAX) * (float))
    4.97 +GLATTR4(Color, ushort, us, (1.0f / USHRT_MAX) * (float))
    4.98 +
    4.99 +GLATTR3(Color, int, i, (1.0f / INT_MAX) * (float))
   4.100 +GLATTR4(Color, int, i, (1.0f / INT_MAX) * (float))
   4.101 +
   4.102 +GLATTR3(Color, uint, ui, (1.0f / UINT_MAX) * (float))
   4.103 +GLATTR4(Color, uint, ui, (1.0f / UINT_MAX) * (float))
   4.104 +
   4.105 +GLATTR1(TexCoord, float, f, (float))
   4.106 +GLATTR2(TexCoord, float, f, (float))
   4.107 +GLATTR3(TexCoord, float, f, (float))
   4.108 +
   4.109 +GLATTR1(TexCoord, double, d, (float))
   4.110 +GLATTR2(TexCoord, double, d, (float))
   4.111 +GLATTR3(TexCoord, double, d, (float))
   4.112 +GLATTR4(TexCoord, double, d, (float))
   4.113 +
   4.114 +GLATTR1(TexCoord, int, i, (float))
   4.115 +GLATTR2(TexCoord, int, i, (float))
   4.116 +GLATTR3(TexCoord, int, i, (float))
   4.117 +GLATTR4(TexCoord, int, i, (float))
   4.118 +
   4.119 +GLATTR1(TexCoord, short, s, (float))
   4.120 +GLATTR2(TexCoord, short, s, (float))
   4.121 +GLATTR3(TexCoord, short, s, (float))
   4.122 +GLATTR4(TexCoord, short, s, (float))
   4.123 +
   4.124 +/* vector functions */
   4.125 +GLATTR2V(Vertex, float, f, (float))
   4.126 +GLATTR3V(Vertex, float, f, (float))
   4.127 +
   4.128 +GLATTR2V(Vertex, double, d, (float))
   4.129 +GLATTR3V(Vertex, double, d, (float))
   4.130 +GLATTR4V(Vertex, double, d, (float))
   4.131 +
   4.132 +GLATTR2V(Vertex, int, i, (float))
   4.133 +GLATTR3V(Vertex, int, i, (float))
   4.134 +GLATTR4V(Vertex, int, i, (float))
   4.135 +
   4.136 +GLATTR2V(Vertex, short, s, (float))
   4.137 +GLATTR3V(Vertex, short, s, (float))
   4.138 +GLATTR4V(Vertex, short, s, (float))
   4.139 +
   4.140 +GLATTR3V(Color, float, f, (float))
   4.141 +GLATTR3V(Color, double, d, (float))
   4.142 +GLATTR4V(Color, double, d, (float))
   4.143 +
   4.144 +GLATTR1V(TexCoord, float, f, (float))
   4.145 +GLATTR2V(TexCoord, float, f, (float))
   4.146 +GLATTR3V(TexCoord, float, f, (float))
   4.147 +
   4.148 +GLATTR1V(TexCoord, double, d, (float))
   4.149 +GLATTR2V(TexCoord, double, d, (float))
   4.150 +GLATTR3V(TexCoord, double, d, (float))
   4.151 +GLATTR4V(TexCoord, double, d, (float))
   4.152 +
   4.153 +GLATTR1V(TexCoord, int, i, (float))
   4.154 +GLATTR2V(TexCoord, int, i, (float))
   4.155 +GLATTR3V(TexCoord, int, i, (float))
   4.156 +GLATTR4V(TexCoord, int, i, (float))
   4.157 +
   4.158 +GLATTR1V(TexCoord, short, s, (float))
   4.159 +GLATTR2V(TexCoord, short, s, (float))
   4.160 +GLATTR3V(TexCoord, short, s, (float))
   4.161 +GLATTR4V(TexCoord, short, s, (float))
   4.162 +
   4.163 +
   4.164 +#endif	/* SANEGL_ATTR_H_ */

     5.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     5.2 +++ b/test.c	Thu Jun 23 05:19:40 2011 +0300
     5.3 @@ -0,0 +1,53 @@
     5.4 +#include <stdlib.h>
     5.5 +#include <GL/glut.h>
     5.6 +#include "sanegl.h"
     5.7 +
     5.8 +void disp(void);
     5.9 +void reshape(int x, int y);
    5.10 +void keyb(unsigned char key, int x, int y);
    5.11 +
    5.12 +
    5.13 +int main(int argc, char **argv)
    5.14 +{
    5.15 +	glutInit(&argc, argv);
    5.16 +	glutInitWindowSize(800, 600);
    5.17 +	glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
    5.18 +	glutCreateWindow("foo");
    5.19 +
    5.20 +	glutDisplayFunc(disp);
    5.21 +	glutReshapeFunc(reshape);
    5.22 +	glutKeyboardFunc(keyb);
    5.23 +
    5.24 +	glutMainLoop();
    5.25 +	return 0;
    5.26 +}
    5.27 +
    5.28 +void disp(void)
    5.29 +{
    5.30 +	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    5.31 +
    5.32 +	glBegin(GL_QUADS);
    5.33 +	glColor3f(1, 0, 0);
    5.34 +	glVertex2f(-0.5, -0.5);
    5.35 +	glColor3f(0, 1, 0);
    5.36 +	glVertex2f(0.5, -0.5);
    5.37 +	glColor3f(0, 0, 1);
    5.38 +	glVertex2f(0.5, 0.5);
    5.39 +	glColor3f(1, 1, 0);
    5.40 +	glVertex2f(-0.5, 0.5);
    5.41 +	glEnd();
    5.42 +
    5.43 +	glutSwapBuffers();
    5.44 +}
    5.45 +
    5.46 +void reshape(int x, int y)
    5.47 +{
    5.48 +	glViewport(0, 0, x, y);
    5.49 +}
    5.50 +
    5.51 +void keyb(unsigned char key, int x, int y)
    5.52 +{
    5.53 +	if(key == 27) {
    5.54 +		exit(0);
    5.55 +	}
    5.56 +}