shithub: tinygl

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ref: 0590ba5de9b6b9c07a6de2f2b1f7246e6cefa22c
dir: /src/api.c/
#include "zgl.h"
/* glVertex */

void glVertex4f(GLfloat x, GLfloat y, GLfloat z, GLfloat w) {
	GLParam p[5];
#include "error_check_no_context.h"
	p[0].op = OP_Vertex;
	p[1].f = x;
	p[2].f = y;
	p[3].f = z;
	p[4].f = w;

	gl_add_op(p);
}

void glVertex2f(GLfloat x, GLfloat y) { glVertex4f(x, y, 0, 1); }

void glVertex3f(GLfloat x, GLfloat y, GLfloat z) { glVertex4f(x, y, z, 1); }

void glVertex3fv(GLfloat* v) { glVertex4f(v[0], v[1], v[2], 1); }

/* glNormal */

void glNormal3f(GLfloat x, GLfloat y, GLfloat z) {
	GLParam p[4];
#include "error_check_no_context.h"
	p[0].op = OP_Normal;
	p[1].f = x;
	p[2].f = y;
	p[3].f = z;
	gl_add_op(p);
}

void glRectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2) {
	glBegin(GL_QUADS);
	glVertex2f(x1, y1);
	glVertex2f(x2, y1);
	glVertex2f(x2, y2);
	glVertex2f(x1, y2);
	glEnd();
}

void glNormal3fv(GLfloat* v) { glNormal3f(v[0], v[1], v[2]); }

/* glColor */

void glColor4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a) {
	GLParam p[8];
#include "error_check_no_context.h"
	p[0].op = OP_Color;
	p[1].f = r;
	p[2].f = g;
	p[3].f = b;
	p[4].f = a;
	p[5].ui = (((GLuint)(r * COLOR_CORRECTED_MULT_MASK) + COLOR_MIN_MULT) & COLOR_MASK);
	p[6].ui = (((GLuint)(g * COLOR_CORRECTED_MULT_MASK) + COLOR_MIN_MULT) & COLOR_MASK);
	p[7].ui = (((GLuint)(b * COLOR_CORRECTED_MULT_MASK) + COLOR_MIN_MULT) & COLOR_MASK);
	gl_add_op(p);
}

void glColor4fv(GLfloat* v) {
	GLParam p[8];
#include "error_check_no_context.h"
	p[0].op = OP_Color;
	p[1].f = v[0];
	p[2].f = v[1];
	p[3].f = v[2];
	p[4].f = v[3];
	p[5].ui = (((GLuint)(v[0] * COLOR_CORRECTED_MULT_MASK) + COLOR_MIN_MULT) & COLOR_MASK);
	p[6].ui = (((GLuint)(v[1] * COLOR_CORRECTED_MULT_MASK) + COLOR_MIN_MULT) & COLOR_MASK);
	p[7].ui = (((GLuint)(v[2] * COLOR_CORRECTED_MULT_MASK) + COLOR_MIN_MULT) & COLOR_MASK);

	gl_add_op(p);
}

void glColor3f(GLfloat x, GLfloat y, GLfloat z) { glColor4f(x, y, z, 1); }

void glColor3fv(GLfloat* v) { glColor4f(v[0], v[1], v[2], 1); }

/* TexCoord */

void glTexCoord4f(GLfloat s, GLfloat t, GLfloat r, GLfloat q) {
	GLParam p[5];
#include "error_check_no_context.h"
	p[0].op = OP_TexCoord;
	p[1].f = s;
	p[2].f = t;
	p[3].f = r;
	p[4].f = q;

	gl_add_op(p);
}

void glTexCoord2f(GLfloat s, GLfloat t) { glTexCoord4f(s, t, 0, 1); }

void glTexCoord2fv(GLfloat* v) { glTexCoord4f(v[0], v[1], 0, 1); }

void glEdgeFlag(GLint flag) {
	GLParam p[2];
#define NEED_CONTEXT
#include "error_check_no_context.h"
#if TGL_FEATURE_ERROR_CHECK == 1
	if (flag != GL_TRUE && flag != GL_FALSE)
#define ERROR_FLAG GL_INVALID_ENUM
#include "error_check.h"
#endif
		p[0].op = OP_EdgeFlag;
	p[1].i = flag;

	gl_add_op(p);
}

/* misc */

void glShadeModel(GLint mode) {
	GLParam p[2];
#define NEED_CONTEXT
#include "error_check_no_context.h"
#if TGL_FEATURE_ERROR_CHECK == 1
	if (mode != GL_FLAT && mode != GL_SMOOTH)
#define ERROR_FLAG GL_INVALID_ENUM
#include "error_check.h"
#else
	if (mode != GL_FLAT && mode != GL_SMOOTH)
		return;
#endif
		p[0].op = OP_ShadeModel;
	p[1].i = mode;

	gl_add_op(p);
}

void glCullFace(GLint mode) {
	GLParam p[2];
#define NEED_CONTEXT
#include "error_check_no_context.h"
#if TGL_FEATURE_ERROR_CHECK == 1
	if (!(mode == GL_BACK || mode == GL_FRONT || mode == GL_FRONT_AND_BACK))
#define ERROR_FLAG GL_INVALID_ENUM
#include "error_check.h"
#else
	/* assert(mode == GL_BACK || mode == GL_FRONT || mode == GL_FRONT_AND_BACK);*/
	/* Assume it's alrgiht.*/
#endif
		p[0].op = OP_CullFace;
	p[1].i = mode;

	gl_add_op(p);
}

void glFrontFace(GLint mode) {
	GLParam p[2];
#define NEED_CONTEXT
#include "error_check_no_context.h"
#if TGL_FEATURE_ERROR_CHECK == 1
	if (!(mode == GL_CCW || mode == GL_CW))
#define ERROR_FLAG GL_INVALID_ENUM
#include "error_check.h"
#else
	/* if(!(mode == GL_CCW || mode == GL_CW)) return;*/
#endif
		mode = (mode != GL_CCW);

	p[0].op = OP_FrontFace;
	p[1].i = mode;

	gl_add_op(p);
}

void glPolygonMode(GLint face, GLint mode) {
	GLParam p[3];
#define NEED_CONTEXT
#include "error_check_no_context.h"
#if TGL_FEATURE_ERROR_CHECK == 1
	if (!((face == GL_BACK || face == GL_FRONT || face == GL_FRONT_AND_BACK) && (mode == GL_POINT || mode == GL_LINE || mode == GL_FILL)))
#define ERROR_FLAG GL_INVALID_ENUM
#include "error_check.h"
#else
	/* assert(face == GL_BACK || face == GL_FRONT || face == GL_FRONT_AND_BACK);*/
	/* assert(mode == GL_POINT || mode == GL_LINE || mode == GL_FILL);*/
#endif
		p[0].op = OP_PolygonMode;
	p[1].i = face;
	p[2].i = mode;

	gl_add_op(p);
}

void glDepthMask(GLint i) {
#include "error_check_no_context.h"
	gl_get_context()->zb->depth_write = (i == GL_TRUE);
}
/* glEnable / glDisable */
/* TODO go to glopEnableDisable and add error checking there on values there.*/
void glEnable(GLint cap) {
	GLParam p[3];
#include "error_check_no_context.h"
	p[0].op = OP_EnableDisable;
	p[1].i = cap;
	p[2].i = 1;

	gl_add_op(p);
}

void glDisable(GLint cap) {
	GLParam p[3];
#include "error_check_no_context.h"
	p[0].op = OP_EnableDisable;
	p[1].i = cap;
	p[2].i = 0;

	gl_add_op(p);
}

/* glBegin / glEnd */

void glBegin(GLint mode) {
	GLParam p[2];
#define NEED_CONTEXT
#include "error_check_no_context.h"
	p[0].op = OP_Begin;
	p[1].i = mode;
#if TGL_FEATURE_ERROR_CHECK == 1
	
	if (mode != GL_POINTS && mode != GL_LINES && mode != GL_LINE_LOOP && mode != GL_LINE_STRIP &&
#if TGL_FEATURE_GL_POLYGON == 1
		mode != GL_POLYGON &&
#endif
		mode != GL_TRIANGLES && mode != GL_TRIANGLE_FAN && mode != GL_TRIANGLE_STRIP && mode != GL_QUADS && mode != GL_QUAD_STRIP)
#define ERROR_FLAG GL_INVALID_ENUM
#include "error_check.h"
#endif
		gl_add_op(p);
}

void glEnd(void) {
	GLParam p[1];
#include "error_check_no_context.h"
	p[0].op = OP_End;

	gl_add_op(p);
}

/* matrix */

void glMatrixMode(GLint mode) {
	GLParam p[2];
#include "error_check_no_context.h"
	p[0].op = OP_MatrixMode;
	p[1].i = mode;

	gl_add_op(p);
}

void glLoadMatrixf(const GLfloat* m) {
	GLParam p[17];
	GLint i;
#include "error_check_no_context.h"
	p[0].op = OP_LoadMatrix;
	for (i = 0; i < 16; i++)
		p[i + 1].f = m[i];

	gl_add_op(p);
}

void glLoadIdentity(void) {
	GLParam p[1];
#include "error_check_no_context.h"
	p[0].op = OP_LoadIdentity;

	gl_add_op(p);
}

void glMultMatrixf(const GLfloat* m) {
	GLParam p[17];
	GLint i;
#include "error_check_no_context.h"
	p[0].op = OP_MultMatrix;
	for (i = 0; i < 16; i++)
		p[i + 1].f = m[i];

	gl_add_op(p);
}

void glPushMatrix(void) {
	GLParam p[1];
#include "error_check_no_context.h"
	p[0].op = OP_PushMatrix;

	gl_add_op(p);
}

void glPopMatrix(void) {
	GLParam p[1];
#include "error_check_no_context.h"
	p[0].op = OP_PopMatrix;

	gl_add_op(p);
}

void glRotatef(GLfloat angle, GLfloat x, GLfloat y, GLfloat z) {
	GLParam p[5];
#include "error_check_no_context.h"
	p[0].op = OP_Rotate;
	p[1].f = angle;
	p[2].f = x;
	p[3].f = y;
	p[4].f = z;

	gl_add_op(p);
}

void glTranslatef(GLfloat x, GLfloat y, GLfloat z) {
	GLParam p[4];
#include "error_check_no_context.h"
	p[0].op = OP_Translate;
	p[1].f = x;
	p[2].f = y;
	p[3].f = z;

	gl_add_op(p);
}

void glScalef(GLfloat x, GLfloat y, GLfloat z) {
	GLParam p[4];
#include "error_check_no_context.h"
	p[0].op = OP_Scale;
	p[1].f = x;
	p[2].f = y;
	p[3].f = z;

	gl_add_op(p);
}

void glViewport(GLint x, GLint y, GLint width, GLint height) {
	GLParam p[5];
#include "error_check_no_context.h"
	p[0].op = OP_Viewport;
	p[1].i = x;
	p[2].i = y;
	p[3].i = width;
	p[4].i = height;

	gl_add_op(p);
}

void glFrustum(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near, GLdouble farv) {
	GLParam p[7];
#include "error_check_no_context.h"
	p[0].op = OP_Frustum;
	p[1].f = left;
	p[2].f = right;
	p[3].f = bottom;
	p[4].f = top;
	p[5].f = near;
	p[6].f = farv;

	gl_add_op(p);
}

/* lightening */

void glMaterialfv(GLint mode, GLint type, GLfloat* v) {
	GLParam p[7];
	GLint i, n;
#define NEED_CONTEXT
#include "error_check_no_context.h"
#if TGL_FEATURE_ERROR_CHECK == 1
	if (!(mode == GL_FRONT || mode == GL_BACK || mode == GL_FRONT_AND_BACK))
#define ERROR_FLAG GL_INVALID_ENUM
#include "error_check.h"
#else
	/* assert(mode == GL_FRONT || mode == GL_BACK || mode == GL_FRONT_AND_BACK);*/
#endif
		p[0].op = OP_Material;
	p[1].i = mode;
	p[2].i = type;
	n = 4;  /* This appears to be a hack... to avoid a jump instruction? What the hell?*/
	if (type == GL_SHININESS)
		n = 1;
	for (i = 0; i < n; i++)
		p[3 + i].f = v[i];
	for (i = n; i < 4; i++)
		p[3 + i].f = 0;

	gl_add_op(p);
}

void glMaterialf(GLint mode, GLint type, GLfloat v) {
	GLParam p[7];
	GLint i;
#include "error_check_no_context.h"
	p[0].op = OP_Material;
	p[1].i = mode;
	p[2].i = type;
	p[3].f = v;
	for (i = 0; i < 3; i++)
		p[4 + i].f = 0;

	gl_add_op(p);
}

void glColorMaterial(GLint mode, GLint type) {
	GLParam p[3];
#include "error_check_no_context.h"
	p[0].op = OP_ColorMaterial;
	p[1].i = mode;
	p[2].i = type;

	gl_add_op(p);
}

void glLightfv(GLint light, GLint type, GLfloat* v) {
	GLParam p[7];
	GLint i;
#include "error_check_no_context.h"
	p[0].op = OP_Light;
	p[1].i = light;
	p[2].i = type;
	/* TODO: 3 components ? */
	for (i = 0; i < 4; i++)
		p[3 + i].f = v[i];

	gl_add_op(p);
}

void glLightf(GLint light, GLint type, GLfloat v) {
	GLParam p[7];
	GLint i;
#include "error_check_no_context.h"
	p[0].op = OP_Light;
	p[1].i = light;
	p[2].i = type;
	p[3].f = v;
	for (i = 0; i < 3; i++)
		p[4 + i].f = 0;

	gl_add_op(p);
}

void glLightModeli(GLint pname, GLint param) {
	GLParam p[6];
#include "error_check_no_context.h"
	p[0].op = OP_LightModel;
	p[1].i = pname;
	p[2].f = (GLfloat)param;
	p[3].f = 0;
	p[4].f = 0;
	p[5].f = 0;
	gl_add_op(p);
}

void glLightModelfv(GLint pname, GLfloat* param) {
	GLParam p[6];
	GLint i;
#include "error_check_no_context.h"
	p[0].op = OP_LightModel;
	p[1].i = pname;
	for (i = 0; i < 4; i++)
		p[2 + i].f = param[i];

	gl_add_op(p);
}

/* clear */

void glClear(GLint mask) {
	GLParam p[2];
#include "error_check_no_context.h"
	p[0].op = OP_Clear;
	p[1].i = mask;

	gl_add_op(p);
}

void glClearColor(GLfloat r, GLfloat g, GLfloat b, GLfloat a) {
	GLParam p[5];
#include "error_check_no_context.h"
	p[0].op = OP_ClearColor;
	p[1].f = r;
	p[2].f = g;
	p[3].f = b;
	p[4].f = a;

	gl_add_op(p);
}

void glClearDepth(GLdouble depth) {
	GLParam p[2];
#include "error_check_no_context.h"
	p[0].op = OP_ClearDepth;
	p[1].f = depth;

	gl_add_op(p);
}

/* textures */
void glTexImage2D(GLint target, GLint level, GLint components, GLint width, GLint height, GLint border, GLint format, GLint type, void* pixels) {
	GLParam p[10];
#include "error_check_no_context.h"
	p[0].op = OP_TexImage2D;
	p[1].i = target;
	p[2].i = level;
	p[3].i = components;
	p[4].i = width;
	p[5].i = height;
	p[6].i = border;
	p[7].i = format;
	p[8].i = type;
	p[9].p = pixels;

	gl_add_op(p);
}

void glTexImage1D(GLint target, GLint level, GLint components, GLint width, GLint border, GLint format, GLint type, void* pixels) {
	GLParam p[10];
#include "error_check_no_context.h"
	p[0].op = OP_TexImage1D;
	p[1].i = target;
	p[2].i = level;
	p[3].i = components;
	p[4].i = width;
	p[5].i = border;
	p[6].i = format;
	p[7].i = type;
	p[8].p = pixels;
	gl_add_op(p);
}

void glBindTexture(GLint target, GLint texture) {
	GLParam p[3];
#include "error_check_no_context.h"
	p[0].op = OP_BindTexture;
	p[1].i = target;
	p[2].i = texture;

	gl_add_op(p);
}

void glTexEnvi(GLint target, GLint pname, GLint param) {

#include "error_check_no_context.h"









}

void glTexParameteri(GLint target, GLint pname, GLint param) {

#include "error_check_no_context.h"










}

/*
void glPixelStorei(GLint pname, GLint param) {
	GLParam p[3];
#include "error_check_no_context.h"
	p[0].op = OP_PixelStore;
	p[1].i = pname;
	p[2].i = param;

	gl_add_op(p);
}
*/
/* selection */

void glInitNames(void) {
	GLParam p[1];
#include "error_check_no_context.h"
	p[0].op = OP_InitNames;

	gl_add_op(p);
}

void glPushName(GLuint name) {
	GLParam p[2];
#include "error_check_no_context.h"
	p[0].op = OP_PushName;
	p[1].i = name;

	gl_add_op(p);
}

void glPopName(void) {
	GLParam p[1];
#include "error_check_no_context.h"
	p[0].op = OP_PopName;

	gl_add_op(p);
}

void glLoadName(GLuint name) {
	GLParam p[2];
#include "error_check_no_context.h"
	p[0].op = OP_LoadName;
	p[1].i = name;

	gl_add_op(p);
}

void glPolygonOffset(GLfloat factor, GLfloat units) {
	GLParam p[3];
#include "error_check_no_context.h"
	p[0].op = OP_PolygonOffset;
	p[1].f = factor;
	p[2].f = units;
	gl_add_op(p);
}

/* Special Functions */

void glCallList(GLuint list) {
	GLParam p[2];
#include "error_check_no_context.h"
	p[0].op = OP_CallList;
	p[1].i = list;

	gl_add_op(p);
}
void glFlush(void) { /* nothing to do */
}

void glHint(GLint target, GLint mode) {
#include "error_check_no_context.h"
}

/* Non standard functions */

void glDebug(GLint mode) {
	GLContext* c = gl_get_context();
#include "error_check.h"
	c->print_flag = mode;
}