269 lines
7.6 KiB
C
269 lines
7.6 KiB
C
/* $XFree86: xc/programs/Xserver/GL/glx/render2.c,v 1.8 2004/02/03 23:04:08 alanh Exp $ */
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/*
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** License Applicability. Except to the extent portions of this file are
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** made subject to an alternative license as permitted in the SGI Free
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** Software License B, Version 1.1 (the "License"), the contents of this
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** file are subject only to the provisions of the License. You may not use
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** this file except in compliance with the License. You may obtain a copy
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** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
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** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
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**
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** http://oss.sgi.com/projects/FreeB
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**
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** Note that, as provided in the License, the Software is distributed on an
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** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
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** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
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** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
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** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
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**
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** Original Code. The Original Code is: OpenGL Sample Implementation,
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** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
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** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
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** Copyright in any portions created by third parties is as indicated
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** elsewhere herein. All Rights Reserved.
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**
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** Additional Notice Provisions: The application programming interfaces
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** established by SGI in conjunction with the Original Code are The
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** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
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** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
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** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
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** Window System(R) (Version 1.3), released October 19, 1998. This software
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** was created using the OpenGL(R) version 1.2.1 Sample Implementation
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** published by SGI, but has not been independently verified as being
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** compliant with the OpenGL(R) version 1.2.1 Specification.
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**
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*/
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/* #define NEED_REPLIES */
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#include <glxserver.h>
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#include "unpack.h"
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#include "g_disptab.h"
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#include "g_disptab_EXT.h"
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extern GLint __glEvalComputeK(GLenum target);
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void __glXDisp_Map1f(GLbyte *pc)
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{
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GLint order, k;
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GLfloat u1, u2, *points;
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GLenum target;
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target = *(GLenum *)(pc + 0);
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order = *(GLint *)(pc + 12);
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u1 = *(GLfloat *)(pc + 4);
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u2 = *(GLfloat *)(pc + 8);
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points = (GLfloat *)(pc + 16);
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k = __glEvalComputeK(target);
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glMap1f(target, u1, u2, k, order, points);
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}
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void __glXDisp_Map2f(GLbyte *pc)
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{
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GLint uorder, vorder, ustride, vstride, k;
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GLfloat u1, u2, v1, v2, *points;
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GLenum target;
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target = *(GLenum *)(pc + 0);
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uorder = *(GLint *)(pc + 12);
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vorder = *(GLint *)(pc + 24);
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u1 = *(GLfloat *)(pc + 4);
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u2 = *(GLfloat *)(pc + 8);
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v1 = *(GLfloat *)(pc + 16);
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v2 = *(GLfloat *)(pc + 20);
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points = (GLfloat *)(pc + 28);
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k = __glEvalComputeK(target);
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ustride = vorder * k;
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vstride = k;
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glMap2f(target, u1, u2, ustride, uorder, v1, v2, vstride, vorder, points);
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}
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void __glXDisp_Map1d(GLbyte *pc)
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{
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GLint order, k;
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#ifdef __GLX_ALIGN64
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GLint compsize;
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#endif
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GLenum target;
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GLdouble u1, u2, *points;
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target = *(GLenum*) (pc + 16);
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order = *(GLint*) (pc + 20);
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k = __glEvalComputeK(target);
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#ifdef __GLX_ALIGN64
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if (order < 0 || k < 0) {
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compsize = 0;
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} else {
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compsize = order * k;
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}
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#endif
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__GLX_GET_DOUBLE(u1,pc);
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__GLX_GET_DOUBLE(u2,pc+8);
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pc += 24;
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#ifdef __GLX_ALIGN64
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if (((unsigned long)pc) & 7) {
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/*
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** Copy the doubles up 4 bytes, trashing the command but aligning
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** the data in the process
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*/
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__GLX_MEM_COPY(pc-4, pc, compsize*8);
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points = (GLdouble*) (pc - 4);
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} else {
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points = (GLdouble*) pc;
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}
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#else
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points = (GLdouble*) pc;
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#endif
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glMap1d(target, u1, u2, k, order, points);
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}
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void __glXDisp_Map2d(GLbyte *pc)
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{
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GLdouble u1, u2, v1, v2, *points;
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GLint uorder, vorder, ustride, vstride, k;
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#ifdef __GLX_ALIGN64
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GLint compsize;
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#endif
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GLenum target;
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target = *(GLenum *)(pc + 32);
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uorder = *(GLint *)(pc + 36);
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vorder = *(GLint *)(pc + 40);
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k = __glEvalComputeK(target);
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#ifdef __GLX_ALIGN64
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if (vorder < 0 || uorder < 0 || k < 0) {
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compsize = 0;
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} else {
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compsize = uorder * vorder * k;
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}
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#endif
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__GLX_GET_DOUBLE(u1,pc);
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__GLX_GET_DOUBLE(u2,pc+8);
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__GLX_GET_DOUBLE(v1,pc+16);
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__GLX_GET_DOUBLE(v2,pc+24);
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pc += 44;
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ustride = vorder * k;
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vstride = k;
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#ifdef __GLX_ALIGN64
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if (((unsigned long)pc) & 7) {
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/*
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** Copy the doubles up 4 bytes, trashing the command but aligning
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** the data in the process
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*/
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__GLX_MEM_COPY(pc-4, pc, compsize*8);
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points = (GLdouble*) (pc - 4);
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} else {
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points = (GLdouble*) pc;
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}
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#else
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points = (GLdouble*) pc;
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#endif
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glMap2d(target, u1, u2, ustride, uorder, v1, v2, vstride, vorder, points);
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}
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void __glXDisp_CallLists(GLbyte *pc)
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{
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GLenum type;
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GLsizei n;
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type = *(GLenum *)(pc + 4);
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n = *(GLsizei *)(pc + 0);
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glCallLists(n, type, pc + 8);
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}
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void __glXDisp_DrawArrays(GLbyte *pc)
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{
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__GLXdispatchDrawArraysHeader *hdr = (__GLXdispatchDrawArraysHeader *)pc;
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__GLXdispatchDrawArraysComponentHeader *compHeader;
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GLint numVertexes = hdr->numVertexes;
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GLint numComponents = hdr->numComponents;
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GLenum primType = hdr->primType;
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GLint stride = 0;
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int i;
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pc += sizeof(__GLXdispatchDrawArraysHeader);
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compHeader = (__GLXdispatchDrawArraysComponentHeader *)pc;
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/* compute stride (same for all component arrays) */
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for (i = 0; i < numComponents; i++) {
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GLenum datatype = compHeader[i].datatype;
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GLint numVals = compHeader[i].numVals;
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stride += __GLX_PAD(numVals * __glXTypeSize(datatype));
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}
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pc += numComponents * sizeof(__GLXdispatchDrawArraysComponentHeader);
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/* set up component arrays */
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for (i = 0; i < numComponents; i++) {
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GLenum datatype = compHeader[i].datatype;
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GLint numVals = compHeader[i].numVals;
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GLenum component = compHeader[i].component;
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switch (component) {
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case GL_VERTEX_ARRAY:
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glEnableClientState(GL_VERTEX_ARRAY);
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glVertexPointer(numVals, datatype, stride, pc);
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break;
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case GL_NORMAL_ARRAY:
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glEnableClientState(GL_NORMAL_ARRAY);
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glNormalPointer(datatype, stride, pc);
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break;
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case GL_COLOR_ARRAY:
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glEnableClientState(GL_COLOR_ARRAY);
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glColorPointer(numVals, datatype, stride, pc);
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break;
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case GL_INDEX_ARRAY:
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glEnableClientState(GL_INDEX_ARRAY);
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glIndexPointer(datatype, stride, pc);
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break;
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case GL_TEXTURE_COORD_ARRAY:
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glEnableClientState(GL_TEXTURE_COORD_ARRAY);
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glTexCoordPointer(numVals, datatype, stride, pc);
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break;
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case GL_EDGE_FLAG_ARRAY:
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glEnableClientState(GL_EDGE_FLAG_ARRAY);
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glEdgeFlagPointer(stride, (const GLboolean *)pc);
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break;
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case GL_SECONDARY_COLOR_ARRAY:
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glEnableClientState(GL_SECONDARY_COLOR_ARRAY);
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glSecondaryColorPointer(numVals, datatype, stride, pc);
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break;
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case GL_FOG_COORD_ARRAY:
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glEnableClientState(GL_FOG_COORD_ARRAY);
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glFogCoordPointer(datatype, stride, pc);
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break;
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default:
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break;
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}
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pc += __GLX_PAD(numVals * __glXTypeSize(datatype));
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}
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glDrawArrays(primType, 0, numVertexes);
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/* turn off anything we might have turned on */
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glDisableClientState(GL_VERTEX_ARRAY);
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glDisableClientState(GL_NORMAL_ARRAY);
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glDisableClientState(GL_COLOR_ARRAY);
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glDisableClientState(GL_INDEX_ARRAY);
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glDisableClientState(GL_TEXTURE_COORD_ARRAY);
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glDisableClientState(GL_EDGE_FLAG_ARRAY);
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glDisableClientState(GL_SECONDARY_COLOR_ARRAY);
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glDisableClientState(GL_FOG_COORD_ARRAY);
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}
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void __glXDisp_DrawArraysEXT(GLbyte *pc)
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{
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__glXDisp_DrawArrays(pc);
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}
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