render2.c

Mesa is an open-source implementation of the OpenGL specification - a system for rendering interacti

/*
 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice including the dates of first publication and
 * either this permission notice or a reference to
 * http://oss.sgi.com/projects/FreeB/
 * shall be included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * Except as contained in this notice, the name of Silicon Graphics, Inc.
 * shall not be used in advertising or otherwise to promote the sale, use or
 * other dealings in this Software without prior written authorization from
 * Silicon Graphics, Inc.
 */

#include "packrender.h"
#include "indirect.h"
#include "indirect_size.h"

/*
** This file contains routines that might need to be transported as
** GLXRender or GLXRenderLarge commands, and these commands don't
** use the pixel header.  See renderpix.c for those routines.
*/

void __indirect_glMap1d(GLenum target, GLdouble u1, GLdouble u2, GLint stride,
	     GLint order, const GLdouble *pnts)
{
    __GLX_DECLARE_VARIABLES();
    GLint k;

    __GLX_LOAD_VARIABLES();
    k = __glMap1d_size(target);
    if (k == 0) {
	__glXSetError(gc, GL_INVALID_ENUM);
	return;
    } else if (stride < k || order <= 0) {
	__glXSetError(gc, GL_INVALID_VALUE);
	return;
    }
    compsize = k * order * __GLX_SIZE_FLOAT64;
    cmdlen = 28+compsize;
    if (!gc->currentDpy) return;

    if (cmdlen <= gc->maxSmallRenderCommandSize) {
	/* Use GLXRender protocol to send small command */
	__GLX_BEGIN_VARIABLE(X_GLrop_Map1d,cmdlen);
	__GLX_PUT_DOUBLE(4,u1);
	__GLX_PUT_DOUBLE(12,u2);
	__GLX_PUT_LONG(20,target);
	__GLX_PUT_LONG(24,order);
	/*
	** NOTE: the doubles that follow are not aligned because of 3
	** longs preceeding
	*/
	__glFillMap1d(k, order, stride, pnts, (pc+28));
	__GLX_END(cmdlen);
    } else {
	/* Use GLXRenderLarge protocol to send command */
	__GLX_BEGIN_VARIABLE_LARGE(X_GLrop_Map1d,cmdlen+4);
	__GLX_PUT_DOUBLE(8,u1);
	__GLX_PUT_DOUBLE(16,u2);
	__GLX_PUT_LONG(24,target);
	__GLX_PUT_LONG(28,order);

	/*
	** NOTE: the doubles that follow are not aligned because of 3
	** longs preceeding
	*/
	if (stride != k) {
	    GLubyte *buf;

	    buf = (GLubyte *) Xmalloc(compsize);
	    if (!buf) {
		__glXSetError(gc, GL_OUT_OF_MEMORY);
		return;
	    }
	    __glFillMap1d(k, order, stride, pnts, buf);
	    __glXSendLargeCommand(gc, pc, 32, buf, compsize);
	    Xfree((char*) buf);
	} else {
	    /* Data is already packed.  Just send it out */
	    __glXSendLargeCommand(gc, pc, 32, pnts, compsize);
	}
    }
}

void __indirect_glMap1f(GLenum target, GLfloat u1, GLfloat u2, GLint stride,
	     GLint order, const GLfloat *pnts)
{
    __GLX_DECLARE_VARIABLES();
    GLint k;

    __GLX_LOAD_VARIABLES();
    k = __glMap1f_size(target);
    if (k == 0) {
	__glXSetError(gc, GL_INVALID_ENUM);
	return;
    } else if (stride < k || order <= 0) {
	__glXSetError(gc, GL_INVALID_VALUE);
	return;
    }
    compsize = k * order * __GLX_SIZE_FLOAT32;
    cmdlen = 20+compsize;
    if (!gc->currentDpy) return;

    /*
    ** The order that arguments are packed is different from the order
    ** for glMap1d.
    */
    if (cmdlen <= gc->maxSmallRenderCommandSize) {
	/* Use GLXRender protocol to send small command */
	__GLX_BEGIN_VARIABLE(X_GLrop_Map1f,cmdlen);
	__GLX_PUT_LONG(4,target);
	__GLX_PUT_FLOAT(8,u1);
	__GLX_PUT_FLOAT(12,u2);
	__GLX_PUT_LONG(16,order);
	__glFillMap1f(k, order, stride, pnts, (GLubyte*) (pc+20));
	__GLX_END(cmdlen);
    } else {
	/* Use GLXRenderLarge protocol to send command */
	__GLX_BEGIN_VARIABLE_LARGE(X_GLrop_Map1f,cmdlen+4);
	__GLX_PUT_LONG(8,target);
	__GLX_PUT_FLOAT(12,u1);
	__GLX_PUT_FLOAT(16,u2);
	__GLX_PUT_LONG(20,order);

	if (stride != k) {
	    GLubyte *buf;

	    buf = (GLubyte *) Xmalloc(compsize);
	    if (!buf) {
		__glXSetError(gc, GL_OUT_OF_MEMORY);
		return;
	    }
	    __glFillMap1f(k, order, stride, pnts, buf);
	    __glXSendLargeCommand(gc, pc, 24, buf, compsize);
	    Xfree((char*) buf);
	} else {
	    /* Data is already packed.  Just send it out */
	    __glXSendLargeCommand(gc, pc, 24, pnts, compsize);
	}
    }
}

void __indirect_glMap2d(GLenum target, GLdouble u1, GLdouble u2, GLint ustr, GLint uord,
	     GLdouble v1, GLdouble v2, GLint vstr, GLint vord,
	     const GLdouble *pnts)
{
    __GLX_DECLARE_VARIABLES();
    GLint k;

    __GLX_LOAD_VARIABLES();
    k = __glMap2d_size(target);
    if (k == 0) {
	__glXSetError(gc, GL_INVALID_ENUM);
	return;
    } else if (vstr < k || ustr < k || vord <= 0 || uord <= 0) {
	__glXSetError(gc, GL_INVALID_VALUE);
	return;
    }
    compsize = k * uord * vord * __GLX_SIZE_FLOAT64;
    cmdlen = 48+compsize; 
    if (!gc->currentDpy) return;

    if (cmdlen <= gc->maxSmallRenderCommandSize) {
	/* Use GLXRender protocol to send small command */
	__GLX_BEGIN_VARIABLE(X_GLrop_Map2d,cmdlen);
	__GLX_PUT_DOUBLE(4,u1);
	__GLX_PUT_DOUBLE(12,u2);
	__GLX_PUT_DOUBLE(20,v1);
	__GLX_PUT_DOUBLE(28,v2);
	__GLX_PUT_LONG(36,target);
	__GLX_PUT_LONG(40,uord);
	__GLX_PUT_LONG(44,vord);
	/*
	** Pack into a u-major ordering.
	** NOTE: the doubles that follow are not aligned because of 5
	** longs preceeding
	*/
	__glFillMap2d(k, uord, vord, ustr, vstr, pnts, (GLdouble*) (pc+48));
	__GLX_END(cmdlen);
    } else {
	/* Use GLXRenderLarge protocol to send command */
	__GLX_BEGIN_VARIABLE_LARGE(X_GLrop_Map2d,cmdlen+4);
	__GLX_PUT_DOUBLE(8,u1);
	__GLX_PUT_DOUBLE(16,u2);
	__GLX_PUT_DOUBLE(24,v1);
	__GLX_PUT_DOUBLE(32,v2);
	__GLX_PUT_LONG(40,target);
	__GLX_PUT_LONG(44,uord);
	__GLX_PUT_LONG(48,vord);

	/*
	** NOTE: the doubles that follow are not aligned because of 5
	** longs preceeding
	*/
	if ((vstr != k) || (ustr != k*vord)) {
	    GLdouble *buf;

	    buf = (GLdouble *) Xmalloc(compsize);
	    if (!buf) {
		__glXSetError(gc, GL_OUT_OF_MEMORY);
		return;
	    }
	    /*
	    ** Pack into a u-major ordering.
	    */
	    __glFillMap2d(k, uord, vord, ustr, vstr, pnts, buf);
	    __glXSendLargeCommand(gc, pc, 52, buf, compsize);
	    Xfree((char*) buf);
	} else {
	    /* Data is already packed.  Just send it out */
	    __glXSendLargeCommand(gc, pc, 52, pnts, compsize);
	}
    }
}

void __indirect_glMap2f(GLenum target, GLfloat u1, GLfloat u2, GLint ustr, GLint uord,
	     GLfloat v1, GLfloat v2, GLint vstr, GLint vord,
	     const GLfloat *pnts)
{
    __GLX_DECLARE_VARIABLES();
    GLint k;

    __GLX_LOAD_VARIABLES();
    k = __glMap2f_size(target);
    if (k == 0) {
	__glXSetError(gc, GL_INVALID_ENUM);
	return;
    } else if (vstr < k || ustr < k || vord <= 0 || uord <= 0) {
	__glXSetError(gc, GL_INVALID_VALUE);
	return;
    }
    compsize = k * uord * vord * __GLX_SIZE_FLOAT32;
    cmdlen = 32+compsize; 
    if (!gc->currentDpy) return;

    /*
    ** The order that arguments are packed is different from the order
    ** for glMap2d.
    */
    if (cmdlen <= gc->maxSmallRenderCommandSize) {
	/* Use GLXRender protocol to send small command */
	__GLX_BEGIN_VARIABLE(X_GLrop_Map2f,cmdlen);
	__GLX_PUT_LONG(4,target);
	__GLX_PUT_FLOAT(8,u1);
	__GLX_PUT_FLOAT(12,u2);
	__GLX_PUT_LONG(16,uord);
	__GLX_PUT_FLOAT(20,v1);
	__GLX_PUT_FLOAT(24,v2);
	__GLX_PUT_LONG(28,vord);
	/*
	** Pack into a u-major ordering.
	*/
	__glFillMap2f(k, uord, vord, ustr, vstr, pnts, (GLfloat*) (pc+32));
	__GLX_END(cmdlen);
    } else {
	/* Use GLXRenderLarge protocol to send command */
	__GLX_BEGIN_VARIABLE_LARGE(X_GLrop_Map2f,cmdlen+4);
	__GLX_PUT_LONG(8,target);
	__GLX_PUT_FLOAT(12,u1);
	__GLX_PUT_FLOAT(16,u2);
	__GLX_PUT_LONG(20,uord);
	__GLX_PUT_FLOAT(24,v1);
	__GLX_PUT_FLOAT(28,v2);
	__GLX_PUT_LONG(32,vord);

	if ((vstr != k) || (ustr != k*vord)) {
	    GLfloat *buf;

	    buf = (GLfloat *) Xmalloc(compsize);
	    if (!buf) {
		__glXSetError(gc, GL_OUT_OF_MEMORY);
		return;
	    }
	    /*
	    ** Pack into a u-major ordering.
	    */
	    __glFillMap2f(k, uord, vord, ustr, vstr, pnts, buf);
	    __glXSendLargeCommand(gc, pc, 36, buf, compsize);
	    Xfree((char*) buf);
	} else {
	    /* Data is already packed.  Just send it out */
	    __glXSendLargeCommand(gc, pc, 36, pnts, compsize);
	}
    }
}

void __indirect_glEnable(GLenum cap)
{
    __GLX_DECLARE_VARIABLES();

    __GLX_LOAD_VARIABLES();
    if (!gc->currentDpy) return;

    switch(cap) {
	case GL_COLOR_ARRAY:
	case GL_EDGE_FLAG_ARRAY:
	case GL_INDEX_ARRAY:
	case GL_NORMAL_ARRAY:
	case GL_TEXTURE_COORD_ARRAY:
	case GL_VERTEX_ARRAY:
	case GL_SECONDARY_COLOR_ARRAY:
	case GL_FOG_COORD_ARRAY:
	    __indirect_glEnableClientState(cap);
	    return;
	default:
	    break;
    }

    __GLX_BEGIN(X_GLrop_Enable,8);
    __GLX_PUT_LONG(4,cap);
    __GLX_END(8);
}

void __indirect_glDisable(GLenum cap)
{
    __GLX_DECLARE_VARIABLES();

    __GLX_LOAD_VARIABLES();
    if (!gc->currentDpy) return;

    switch(cap) {
	case GL_COLOR_ARRAY:
	case GL_EDGE_FLAG_ARRAY:
	case GL_INDEX_ARRAY:
	case GL_NORMAL_ARRAY:
	case GL_TEXTURE_COORD_ARRAY:
	case GL_VERTEX_ARRAY:
	case GL_SECONDARY_COLOR_ARRAY:
	case GL_FOG_COORD_ARRAY:
	    __indirect_glDisableClientState(cap);
	    return;
	default:
	    break;
    }

    __GLX_BEGIN(X_GLrop_Disable,8);
    __GLX_PUT_LONG(4,cap);
    __GLX_END(8);
}