# HG changeset patch
# User John Tsiombikas <nuclear@member.fsf.org>
# Date 1308795580 -10800
# Node ID 00b315b6db1e67a06c0073362ba17293e8f1cbbe

sanegl initial commit

diff -r 000000000000 -r 00b315b6db1e Makefile
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Makefile	Thu Jun 23 05:19:40 2011 +0300
@@ -0,0 +1,20 @@
+src = $(wildcard *.c)
+obj = $(src:.c=.o)
+bin = test
+
+CC = gcc
+CFLAGS = -pedantic -Wall -g
+LDFLAGS = $(libgl)
+
+ifeq ($(shell uname -s), Darwin)
+	libgl = -framework OpenGL -framework GLUT
+else
+	libgl = -lGL -lGLU -lglut
+endif
+
+$(bin): $(obj)
+	$(CC) -o $@ $(obj) $(LDFLAGS)
+
+.PHONY: clean
+clean:
+	rm -f $(obj) $(bin)
diff -r 000000000000 -r 00b315b6db1e sanegl.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sanegl.c	Thu Jun 23 05:19:40 2011 +0300
@@ -0,0 +1,73 @@
+#include <stdio.h>
+
+#define SANEGL_IMPL_
+#include "sanegl.h"
+
+struct vertex {
+	float pos[4];
+	float color[4];
+	float tex[2];
+	float norm[3];
+};
+
+static const int mode_verts[] = {
+	1,		/* GL_POINTS */
+	2,		/* GL_LINES */
+	-1,		/* GL_LINE_LOOP TODO */
+	-1,		/* GL_LINE_STRIP TODO */
+	3,		/* GL_TRIANGLES */
+	-1,		/* GL_TRIANGLE_STRIP TODO */
+	-1,		/* GL_TRIANGLE_FAN TODO */
+	6,		/* GL_QUADS (two triangles) */
+	-1,		/* GL_QUAD_STRIP TODO */
+	-1		/* GL_POLYGON	TODO */
+};
+
+static struct vertex vcur = {
+	{0, 0, 0, 1},	/* position */
+	{1, 1, 1, 1},	/* color */
+	{0, 0},			/* tex-coord */
+	{0, 0, 0}		/* normal */
+};
+
+
+void glBegin(GLenum mode)
+{
+	printf("glBegin\n");
+}
+
+void glEnd(void)
+{
+	printf("glEnd\n");
+}
+
+void glVertex4f(GLfloat x, GLfloat y, GLfloat z, GLfloat w)
+{
+	vcur.pos[0] = x;
+	vcur.pos[1] = y;
+	vcur.pos[2] = z;
+	vcur.pos[3] = w;
+
+	varr[nvert++] = vcur;
+}
+
+void glColor4f(GLfloat r, GLfloat g, GLfloat, b, GLfloat a)
+{
+	vcur.color[0] = r;
+	vcur.color[1] = g;
+	vcur.color[2] = b;
+	vcur.color[3] = a;
+}
+
+void glNormal3f(GLfloat x, GLfloat y, GLfloat z)
+{
+	vcur.normal[0] = x;
+	vcur.normal[1] = y;
+	vcur.normal[2] = z;
+}
+
+void glTexCoord4f(GLfloat x, GLfloat y)
+{
+	vcur.tex[0] = x;
+	vcur.tex[1] = y;
+}
diff -r 000000000000 -r 00b315b6db1e sanegl.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sanegl.h	Thu Jun 23 05:19:40 2011 +0300
@@ -0,0 +1,19 @@
+#ifndef SANEGL_H_
+#define SANEGL_H_
+
+#ifndef __APPLE__
+#include <GL/gl.h>
+#else
+#include <OpenGL/gl.h>
+#endif
+
+#ifndef GL_QUADS
+#define GL_QUADS	7
+#endif
+
+void glBegin(GLenum mode);
+void glEnd(void);
+
+#include "sanegl_attr.h"
+
+#endif	/* SANEGL_H_ */
diff -r 000000000000 -r 00b315b6db1e sanegl_attr.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sanegl_attr.h	Thu Jun 23 05:19:40 2011 +0300
@@ -0,0 +1,161 @@
+#ifndef SANEGL_ATTR_H_
+#define SANEGL_ATTR_H_
+
+#ifndef SANEGL_IMPL_
+/* in the header file just expand to the prototypes */
+#define GLATTR1(name, type, suffix, conv)	\
+	void gl##name##1##suffix(GL##type x);
+
+#define GLATTR2(name, type, suffix, conv)	\
+	void gl##name##2##suffix(GL##type x, GL##type y);
+
+#define GLATTR3(name, type, suffix, conv) \
+	void gl##name##3##suffix(GL##type x, GL##type y, GL##type z);
+
+#define GLATTR4(name, type, suffix, conv)	\
+	void gl##name##3##suffix(GL##type x, GL##type y, GL##type z, GL##type w);
+
+#define GLATTR1V(name, type, suffix, conv) \
+	void gl##name##1##suffix##v(const GL##type *p);
+
+#define GLATTR2V(name, type, suffix, conv) \
+	void gl##name##2##suffix##v(const GL##type *p);
+
+#define GLATTR3V(name, type, suffix, conv) \
+	void gl##name##3##suffix##v(const GL##type *p);
+
+#define GLATTR4V(name, type, suffix, conv) \
+	void gl##name##4##suffix##v(const GL##type *p);
+#else
+/* this full expansion will be performed in the implementation (sanegl.c) */
+#define GLATTR1(name, type, suffix, conv)	\
+	void gl##name##1##suffix(GL##type x) \
+		{ gl##name##4f(conv(x), 0, 0, 1); }
+
+#define GLATTR2(name, type, suffix, conv)	\
+	void gl##name##2##suffix(GL##type x, GL##type y) \
+		{ gl##name##4f(conv(x), conv(y), 0, 1); }
+
+#define GLATTR3(name, type, suffix, conv)	\
+	void gl##name##3##suffix(GL##type x, GL##type y, GL##type z) \
+		{ gl##name##4f(conv(x), conv(y), conv(z), 1); }
+
+#define GLATTR4(name, type, suffix, conv)	\
+	void gl##name##3##suffix(GL##type x, GL##type y, GL##type z, GL##type w) \
+		{ gl##name##4f(conv(x), conv(y), conv(z), conv(w)); }
+
+#define GLATTR1V(name, type, suffix, conv) \
+	void gl##name##1##suffix##v(const GL##type *p) \
+		{ gl##name##4f(conv(*p), 0, 0, 1); }
+
+#define GLATTR2V(name, type, suffix, conv) \
+	void gl##name##2##suffix##v(const GL##type *p) \
+		{ gl##name##4f(conv(p[0]), conv(p[1]), 0, 1); }
+
+#define GLATTR3V(name, type, suffix, conv) \
+	void gl##name##3##suffix##v(const GL##type *p) \
+		{ gl##name##4f(conv(p[0]), conv(p[1]), conv(p[2]), 1); }
+
+#define GLATTR4V(name, type, suffix, conv) \
+	void gl##name##4##suffix##v(const GL##type *p) \
+		{ gl##name##4f(conv(p[0]), conv(p[1]), conv(p[2]), conv(p[3])); }
+#endif
+
+/* n-arg functions */
+GLATTR2(Vertex, float, f, (float))
+GLATTR3(Vertex, float, f, (float))
+
+GLATTR2(Vertex, double, d, (float))
+GLATTR3(Vertex, double, d, (float))
+GLATTR4(Vertex, double, d, (float))
+
+GLATTR2(Vertex, int, i, (float))
+GLATTR3(Vertex, int, i, (float))
+GLATTR4(Vertex, int, i, (float))
+
+GLATTR2(Vertex, short, s, (float))
+GLATTR3(Vertex, short, s, (float))
+GLATTR4(Vertex, short, s, (float))
+
+GLATTR3(Color, float, f, (float))
+GLATTR3(Color, double, d, (float))
+GLATTR4(Color, double, d, (float))
+
+GLATTR3(Color, byte, b, (1.0f / CHAR_MAX) * (float))
+GLATTR4(Color, byte, b, (1.0f / CHAR_MAX) * (float))
+
+GLATTR3(Color, ubyte, ub, (1.0f / UCHAR_MAX) * (float))
+GLATTR4(Color, ubyte, ub, (1.0f / UCHAR_MAX) * (float))
+
+GLATTR3(Color, short, s, (1.0f / SHRT_MAX) * (float))
+GLATTR4(Color, short, s, (1.0f / SHRT_MAX) * (float))
+
+GLATTR3(Color, ushort, us, (1.0f / USHRT_MAX) * (float))
+GLATTR4(Color, ushort, us, (1.0f / USHRT_MAX) * (float))
+
+GLATTR3(Color, int, i, (1.0f / INT_MAX) * (float))
+GLATTR4(Color, int, i, (1.0f / INT_MAX) * (float))
+
+GLATTR3(Color, uint, ui, (1.0f / UINT_MAX) * (float))
+GLATTR4(Color, uint, ui, (1.0f / UINT_MAX) * (float))
+
+GLATTR1(TexCoord, float, f, (float))
+GLATTR2(TexCoord, float, f, (float))
+GLATTR3(TexCoord, float, f, (float))
+
+GLATTR1(TexCoord, double, d, (float))
+GLATTR2(TexCoord, double, d, (float))
+GLATTR3(TexCoord, double, d, (float))
+GLATTR4(TexCoord, double, d, (float))
+
+GLATTR1(TexCoord, int, i, (float))
+GLATTR2(TexCoord, int, i, (float))
+GLATTR3(TexCoord, int, i, (float))
+GLATTR4(TexCoord, int, i, (float))
+
+GLATTR1(TexCoord, short, s, (float))
+GLATTR2(TexCoord, short, s, (float))
+GLATTR3(TexCoord, short, s, (float))
+GLATTR4(TexCoord, short, s, (float))
+
+/* vector functions */
+GLATTR2V(Vertex, float, f, (float))
+GLATTR3V(Vertex, float, f, (float))
+
+GLATTR2V(Vertex, double, d, (float))
+GLATTR3V(Vertex, double, d, (float))
+GLATTR4V(Vertex, double, d, (float))
+
+GLATTR2V(Vertex, int, i, (float))
+GLATTR3V(Vertex, int, i, (float))
+GLATTR4V(Vertex, int, i, (float))
+
+GLATTR2V(Vertex, short, s, (float))
+GLATTR3V(Vertex, short, s, (float))
+GLATTR4V(Vertex, short, s, (float))
+
+GLATTR3V(Color, float, f, (float))
+GLATTR3V(Color, double, d, (float))
+GLATTR4V(Color, double, d, (float))
+
+GLATTR1V(TexCoord, float, f, (float))
+GLATTR2V(TexCoord, float, f, (float))
+GLATTR3V(TexCoord, float, f, (float))
+
+GLATTR1V(TexCoord, double, d, (float))
+GLATTR2V(TexCoord, double, d, (float))
+GLATTR3V(TexCoord, double, d, (float))
+GLATTR4V(TexCoord, double, d, (float))
+
+GLATTR1V(TexCoord, int, i, (float))
+GLATTR2V(TexCoord, int, i, (float))
+GLATTR3V(TexCoord, int, i, (float))
+GLATTR4V(TexCoord, int, i, (float))
+
+GLATTR1V(TexCoord, short, s, (float))
+GLATTR2V(TexCoord, short, s, (float))
+GLATTR3V(TexCoord, short, s, (float))
+GLATTR4V(TexCoord, short, s, (float))
+
+
+#endif	/* SANEGL_ATTR_H_ */
diff -r 000000000000 -r 00b315b6db1e test.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test.c	Thu Jun 23 05:19:40 2011 +0300
@@ -0,0 +1,53 @@
+#include <stdlib.h>
+#include <GL/glut.h>
+#include "sanegl.h"
+
+void disp(void);
+void reshape(int x, int y);
+void keyb(unsigned char key, int x, int y);
+
+
+int main(int argc, char **argv)
+{
+	glutInit(&argc, argv);
+	glutInitWindowSize(800, 600);
+	glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
+	glutCreateWindow("foo");
+
+	glutDisplayFunc(disp);
+	glutReshapeFunc(reshape);
+	glutKeyboardFunc(keyb);
+
+	glutMainLoop();
+	return 0;
+}
+
+void disp(void)
+{
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+	glBegin(GL_QUADS);
+	glColor3f(1, 0, 0);
+	glVertex2f(-0.5, -0.5);
+	glColor3f(0, 1, 0);
+	glVertex2f(0.5, -0.5);
+	glColor3f(0, 0, 1);
+	glVertex2f(0.5, 0.5);
+	glColor3f(1, 1, 0);
+	glVertex2f(-0.5, 0.5);
+	glEnd();
+
+	glutSwapBuffers();
+}
+
+void reshape(int x, int y)
+{
+	glViewport(0, 0, x, y);
+}
+
+void keyb(unsigned char key, int x, int y)
+{
+	if(key == 27) {
+		exit(0);
+	}
+}