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904 lines
26 KiB
904 lines
26 KiB
/*
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** Copyright 1991,1992, Silicon Graphics, Inc.
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** All Rights Reserved.
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**
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** This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics, Inc.;
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** the contents of this file may not be disclosed to third parties, copied or
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** duplicated in any form, in whole or in part, without the prior written
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** permission of Silicon Graphics, Inc.
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**
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** RESTRICTED RIGHTS LEGEND:
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** Use, duplication or disclosure by the Government is subject to restrictions
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** as set forth in subdivision (c)(1)(ii) of the Rights in Technical Data
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** and Computer Software clause at DFARS 252.227-7013, and/or in similar or
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** successor clauses in the FAR, DOD or NASA FAR Supplement. Unpublished -
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** rights reserved under the Copyright Laws of the United States.
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*/
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#include "precomp.h"
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#pragma hdrstop
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#include "gencx.h"
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#include "imfuncs.h"
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/*
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** Initialize pixel map with default size and value.
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*/
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void FASTCALL __glInitDefaultPixelMap(__GLcontext *gc, GLenum map)
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{
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__GLpixelState *ps = &gc->state.pixel;
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__GLpixelMapHead *pMap = ps->pixelMap;
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GLint index = map - GL_PIXEL_MAP_I_TO_I;
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#ifdef _MCD_
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__GLGENcontext *gengc = (__GLGENcontext *) gc;
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#endif
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switch (map) {
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case GL_PIXEL_MAP_I_TO_I:
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case GL_PIXEL_MAP_S_TO_S:
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/*
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** Allocate single-entry map for index type.
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*/
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if (!(pMap[index].base.mapI = (GLint*)
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GCALLOC(gc, sizeof(GLint)))) {
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return;
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} else {
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pMap[index].base.mapI[0] = 0;
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pMap[index].size = 1;
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#ifdef _MCD_
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if (gengc->pMcdState)
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GenMcdPixelMap(gengc, map, 1, (VOID *) pMap[index].base.mapI);
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#endif
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}
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break;
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case GL_PIXEL_MAP_I_TO_R: case GL_PIXEL_MAP_I_TO_G:
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case GL_PIXEL_MAP_I_TO_B: case GL_PIXEL_MAP_I_TO_A:
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case GL_PIXEL_MAP_R_TO_R: case GL_PIXEL_MAP_G_TO_G:
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case GL_PIXEL_MAP_B_TO_B: case GL_PIXEL_MAP_A_TO_A:
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/*
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** Allocate single-entry map for component type.
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*/
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if (!(pMap[index].base.mapF = (__GLfloat*)
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GCALLOC(gc, sizeof(__GLfloat)))) {
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return;
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} else {
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pMap[index].base.mapF[0] = __glZero;
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pMap[index].size = 1;
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#ifdef _MCD_
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if (gengc->pMcdState)
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GenMcdPixelMap(gengc, map, 1, (VOID *) pMap[index].base.mapF);
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#endif
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}
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break;
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default:
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__glSetError(GL_INVALID_ENUM);
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return;
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}
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}
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void FASTCALL __glPixelSetColorScales(__GLcontext *gc)
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{
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__GLpixelMachine *pm = &gc->pixel;
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GLfloat redScale, greenScale, blueScale, alphaScale;
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int i;
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GLint mask;
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if (pm->redMap == NULL) {
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/* First time allocation of these maps */
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/*
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** These lookup tables are for type UNSIGNED_BYTE, so they are sized
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** to 256 entries. They map from UNSIGNED_BYTE to internal scaled
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** floating point colors.
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*/
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#ifdef NT
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pm->redMap =
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(GLfloat*) GCALLOC(gc, 5 * 256 * sizeof(GLfloat));
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if (!pm->redMap)
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return;
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pm->greenMap = pm->redMap + 1 * 256;
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pm->blueMap = pm->redMap + 2 * 256;
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pm->alphaMap = pm->redMap + 3 * 256;
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pm->iMap = pm->redMap + 4 * 256;
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#else
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pm->redMap =
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(GLfloat*) GCALLOC(gc, 256 * sizeof(GLfloat));
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pm->greenMap =
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(GLfloat*) GCALLOC(gc, 256 * sizeof(GLfloat));
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pm->blueMap =
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(GLfloat*) GCALLOC(gc, 256 * sizeof(GLfloat));
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pm->alphaMap =
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(GLfloat*) GCALLOC(gc, 256 * sizeof(GLfloat));
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pm->iMap =
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(GLfloat*) GCALLOC(gc, 256 * sizeof(GLfloat));
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#endif
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}
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redScale = gc->frontBuffer.redScale / 255;
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greenScale = gc->frontBuffer.greenScale / 255;
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blueScale = gc->frontBuffer.blueScale / 255;
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alphaScale = gc->frontBuffer.alphaScale / 255;
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mask = gc->frontBuffer.redMax;
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for (i=0; i<256; i++) {
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pm->redMap[i] = i * redScale;
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pm->greenMap[i] = i * greenScale;
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pm->blueMap[i] = i * blueScale;
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pm->alphaMap[i] = i * alphaScale;
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pm->iMap[i] = (GLfloat) (i & mask);
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}
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/*
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** Invalidate the RGBA modify tables so that they will be
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** recomputed using the current color buffer scales.
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*/
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pm->rgbaCurrent = GL_FALSE;
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}
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/************************************************************************/
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void FASTCALL __glFreePixelState(__GLcontext *gc)
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{
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__GLpixelState *ps = &gc->state.pixel;
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__GLpixelMapHead *pMap = ps->pixelMap;
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__GLpixelMachine *pm = &gc->pixel;
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GLenum m;
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GLint i;
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/*
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** Free memory allocated to pixel maps.
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*/
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for (m = GL_PIXEL_MAP_I_TO_I; m <= GL_PIXEL_MAP_A_TO_A; m++) {
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i = m - GL_PIXEL_MAP_I_TO_I;
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if (pMap[i].base.mapI) {
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GCFREE(gc, pMap[i].base.mapI);
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pMap[i].base.mapI = 0;
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}
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}
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#ifdef NT
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// This includes red, green, blue, alpha and i maps.
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GCFREE(gc, pm->redMap);
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#else
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GCFREE(gc, pm->redMap);
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GCFREE(gc, pm->greenMap);
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GCFREE(gc, pm->blueMap);
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GCFREE(gc, pm->alphaMap);
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GCFREE(gc, pm->iMap);
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#endif
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if (pm->redModMap) {
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#ifdef NT
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// This includes red, green, blue and alpha mod maps.
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GCFREE(gc, pm->redModMap);
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#else
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GCFREE(gc, pm->redModMap);
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GCFREE(gc, pm->greenModMap);
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GCFREE(gc, pm->blueModMap);
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GCFREE(gc, pm->alphaModMap);
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#endif
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}
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if (pm->iToRMap) {
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#ifdef NT
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// This includes iToR, iToG, iToB and iToA maps.
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GCFREE(gc, pm->iToRMap);
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#else
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GCFREE(gc, pm->iToRMap);
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GCFREE(gc, pm->iToGMap);
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GCFREE(gc, pm->iToBMap);
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GCFREE(gc, pm->iToAMap);
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#endif
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}
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if (pm->iToIMap) {
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GCFREE(gc, pm->iToIMap);
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}
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}
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void FASTCALL __glInitPixelState(__GLcontext *gc)
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{
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__GLpixelState *ps = &gc->state.pixel;
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__GLpixelMachine *pm = &gc->pixel;
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GLenum m;
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/*
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** Initialize transfer mode.
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*/
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ps->transferMode.r_scale = __glOne;
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ps->transferMode.g_scale = __glOne;
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ps->transferMode.b_scale = __glOne;
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ps->transferMode.a_scale = __glOne;
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ps->transferMode.d_scale = __glOne;
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ps->transferMode.zoomX = __glOne;
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ps->transferMode.zoomY = __glOne;
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/*
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** Initialize pixel maps with default sizes and values.
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*/
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for (m = GL_PIXEL_MAP_I_TO_I; m <= GL_PIXEL_MAP_A_TO_A; m++) {
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__glInitDefaultPixelMap(gc, m);
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}
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/*
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** Initialize store mode.
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*/
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ps->packModes.alignment = 4;
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ps->unpackModes.alignment = 4;
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/* Setup to use the correct read buffer */
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if (gc->modes.doubleBufferMode) {
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ps->readBuffer = GL_BACK;
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} else {
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ps->readBuffer = GL_FRONT;
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}
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ps->readBufferReturn = ps->readBuffer;
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/* Lookup tables used by some pixel routines */
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__glPixelSetColorScales(gc);
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#ifdef _MCD_
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MCD_STATE_DIRTY(gc, PIXELSTATE);
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#endif
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}
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/************************************************************************/
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/*
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** Specify modes that control the storage format of pixel arrays.
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*/
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void APIPRIVATE __glim_PixelStoref(GLenum mode, GLfloat value)
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{
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switch (mode) {
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case GL_PACK_ROW_LENGTH:
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case GL_PACK_SKIP_ROWS:
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case GL_PACK_SKIP_PIXELS:
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case GL_PACK_ALIGNMENT:
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case GL_UNPACK_ROW_LENGTH:
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case GL_UNPACK_SKIP_ROWS:
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case GL_UNPACK_SKIP_PIXELS:
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case GL_UNPACK_ALIGNMENT:
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/* Round */
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if (value < 0) {
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__glim_PixelStorei(mode, (GLint) (value - (__GLfloat) 0.5));
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} else {
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__glim_PixelStorei(mode, (GLint) (value + (__GLfloat) 0.5));
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}
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break;
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case GL_PACK_SWAP_BYTES:
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case GL_PACK_LSB_FIRST:
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case GL_UNPACK_SWAP_BYTES:
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case GL_UNPACK_LSB_FIRST:
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if (value == __glZero) {
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__glim_PixelStorei(mode, GL_FALSE);
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} else {
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__glim_PixelStorei(mode, GL_TRUE);
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}
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default:
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__glim_PixelStorei(mode, (GLint) value);
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break;
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}
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}
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void APIPRIVATE __glim_PixelStorei(GLenum mode, GLint value)
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{
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__GLpixelState *ps;
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__GL_SETUP_NOT_IN_BEGIN();
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ps = &gc->state.pixel;
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switch (mode) {
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case GL_PACK_ROW_LENGTH:
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if (value < 0) {
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__glSetError(GL_INVALID_VALUE);
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return;
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}
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if (ps->packModes.lineLength == (GLuint) value) return;
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ps->packModes.lineLength = (GLuint) value;
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break;
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case GL_PACK_SKIP_ROWS:
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if (value < 0) {
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__glSetError(GL_INVALID_VALUE);
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return;
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}
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if (ps->packModes.skipLines == (GLuint) value) return;
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ps->packModes.skipLines = (GLuint) value;
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break;
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case GL_PACK_SKIP_PIXELS:
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if (value < 0) {
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__glSetError(GL_INVALID_VALUE);
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return;
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}
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if (ps->packModes.skipPixels == (GLuint) value) return;
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ps->packModes.skipPixels = (GLuint) value;
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break;
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case GL_PACK_ALIGNMENT:
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switch (value) {
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case 1: case 2: case 4: case 8:
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if (ps->packModes.alignment == (GLuint) value) return;
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ps->packModes.alignment = (GLuint) value;
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break;
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default:
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__glSetError(GL_INVALID_VALUE);
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return;
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}
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break;
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case GL_PACK_SWAP_BYTES:
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if (ps->packModes.swapEndian == (value != 0)) return;
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ps->packModes.swapEndian = (value != 0);
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break;
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case GL_PACK_LSB_FIRST:
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if (ps->packModes.lsbFirst == (value != 0)) return;
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ps->packModes.lsbFirst = (value != 0);
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break;
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case GL_UNPACK_ROW_LENGTH:
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if (value < 0) {
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__glSetError(GL_INVALID_VALUE);
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return;
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}
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if (ps->unpackModes.lineLength == (GLuint) value) return;
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ps->unpackModes.lineLength = (GLuint) value;
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break;
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case GL_UNPACK_SKIP_ROWS:
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if (value < 0) {
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__glSetError(GL_INVALID_VALUE);
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return;
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}
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if (ps->unpackModes.skipLines == (GLuint) value) return;
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ps->unpackModes.skipLines = (GLuint) value;
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break;
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case GL_UNPACK_SKIP_PIXELS:
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if (value < 0) {
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__glSetError(GL_INVALID_VALUE);
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return;
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}
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if (ps->unpackModes.skipPixels == (GLuint) value) return;
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ps->unpackModes.skipPixels = (GLuint) value;
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break;
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case GL_UNPACK_ALIGNMENT:
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switch (value) {
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case 1: case 2: case 4: case 8:
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if (ps->unpackModes.alignment == (GLuint) value) return;
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ps->unpackModes.alignment = (GLuint) value;
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break;
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default:
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__glSetError(GL_INVALID_VALUE);
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return;
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}
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break;
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case GL_UNPACK_SWAP_BYTES:
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if (ps->unpackModes.swapEndian == (value != 0)) return;
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ps->unpackModes.swapEndian = (value != 0);
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break;
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case GL_UNPACK_LSB_FIRST:
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if (ps->unpackModes.lsbFirst == (value != 0)) return;
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ps->unpackModes.lsbFirst = (value != 0);
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break;
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default:
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__glSetError(GL_INVALID_ENUM);
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return;
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}
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__GL_DELAY_VALIDATE_MASK(gc, __GL_DIRTY_PIXEL);
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#ifdef _MCD_
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MCD_STATE_DIRTY(gc, PIXELSTATE);
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#endif
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}
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/*
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** Specify zoom factor that affects drawing and copying of pixel arrays
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*/
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void APIPRIVATE __glim_PixelZoom(GLfloat xfactor, GLfloat yfactor)
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{
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__GLpixelState *ps;
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GLint xtemp, ytemp;
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__GL_SETUP_NOT_IN_BEGIN();
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ps = &gc->state.pixel;
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/* Round xfactor and yfactor to fixed point accuracy. */
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if (xfactor > 0) {
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xtemp = (GLint) ((xfactor / gc->constants.viewportEpsilon) + __glHalf);
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} else {
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xtemp = (GLint) ((xfactor / gc->constants.viewportEpsilon) - __glHalf);
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}
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if (yfactor > 0) {
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ytemp = (GLint) ((yfactor / gc->constants.viewportEpsilon) + __glHalf);
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} else {
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ytemp = (GLint) ((yfactor / gc->constants.viewportEpsilon) - __glHalf);
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}
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xfactor = xtemp * gc->constants.viewportEpsilon;
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yfactor = ytemp * gc->constants.viewportEpsilon;
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if ((ps->transferMode.zoomX == xfactor) &&
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(ps->transferMode.zoomY == yfactor))
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return;
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ps->transferMode.zoomX = xfactor;
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ps->transferMode.zoomY = yfactor;
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__GL_DELAY_VALIDATE_MASK(gc, __GL_DIRTY_PIXEL);
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#ifdef _MCD_
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MCD_STATE_DIRTY(gc, PIXELSTATE);
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#endif
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}
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/*
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** Specify modes that control the transfer of pixel arrays.
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*/
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void APIPRIVATE __glim_PixelTransferf(GLenum mode, GLfloat value)
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{
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__GLpixelState *ps;
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__GL_SETUP_NOT_IN_BEGIN();
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ps = &gc->state.pixel;
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|
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switch (mode) {
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case GL_RED_SCALE:
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if (ps->transferMode.r_scale == value) return;
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ps->transferMode.r_scale = value;
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break;
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case GL_GREEN_SCALE:
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if (ps->transferMode.g_scale == value) return;
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ps->transferMode.g_scale = value;
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break;
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case GL_BLUE_SCALE:
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if (ps->transferMode.b_scale == value) return;
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ps->transferMode.b_scale = value;
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break;
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case GL_ALPHA_SCALE:
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if (ps->transferMode.a_scale == value) return;
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ps->transferMode.a_scale = value;
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break;
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case GL_DEPTH_SCALE:
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if (ps->transferMode.d_scale == value) return;
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ps->transferMode.d_scale = value;
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break;
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case GL_RED_BIAS:
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if (ps->transferMode.r_bias == value) return;
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ps->transferMode.r_bias = value;
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break;
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|
case GL_GREEN_BIAS:
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|
if (ps->transferMode.g_bias == value) return;
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|
ps->transferMode.g_bias = value;
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|
break;
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|
case GL_BLUE_BIAS:
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|
if (ps->transferMode.b_bias == value) return;
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ps->transferMode.b_bias = value;
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|
break;
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|
case GL_ALPHA_BIAS:
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|
if (ps->transferMode.a_bias == value) return;
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ps->transferMode.a_bias = value;
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break;
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case GL_DEPTH_BIAS:
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if (ps->transferMode.d_bias == value) return;
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ps->transferMode.d_bias = value;
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break;
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case GL_INDEX_SHIFT:
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|
{
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|
GLint tmp;
|
|
|
|
/* Round */
|
|
if (value > 0) {
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tmp = (GLint) (value + __glHalf);
|
|
} else {
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|
tmp = (GLint) (value - __glHalf);
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}
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|
if (ps->transferMode.indexShift == tmp) return;
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|
ps->transferMode.indexShift = tmp;
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break;
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}
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|
case GL_INDEX_OFFSET:
|
|
{
|
|
GLint tmp;
|
|
|
|
/* Round */
|
|
if (value > 0) {
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|
tmp = (GLint) (value - __glHalf);
|
|
} else {
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|
tmp = (GLint) (value - __glHalf);
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|
}
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|
if (ps->transferMode.indexOffset == tmp) return;
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|
ps->transferMode.indexOffset = tmp;
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break;
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|
}
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|
case GL_MAP_COLOR:
|
|
if (ps->transferMode.mapColor == (value != __glZero)) return;
|
|
ps->transferMode.mapColor = (value != __glZero);
|
|
break;
|
|
case GL_MAP_STENCIL:
|
|
if (ps->transferMode.mapStencil == (value != __glZero)) return;
|
|
ps->transferMode.mapStencil = (value != __glZero);
|
|
break;
|
|
default:
|
|
__glSetError(GL_INVALID_ENUM);
|
|
return;
|
|
}
|
|
__GL_DELAY_VALIDATE_MASK(gc, __GL_DIRTY_PIXEL);
|
|
|
|
#ifdef _MCD_
|
|
MCD_STATE_DIRTY(gc, PIXELSTATE);
|
|
#endif
|
|
}
|
|
|
|
void APIPRIVATE __glim_PixelTransferi( GLenum mode, GLint value)
|
|
{
|
|
__glim_PixelTransferf(mode, (GLfloat) value);
|
|
}
|
|
|
|
/************************************************************************/
|
|
|
|
/*
|
|
** Functions to specify mapping of pixel colors and stencil values.
|
|
*/
|
|
void APIPRIVATE __glim_PixelMapfv(GLenum map, GLint mapSize,
|
|
const GLfloat values[])
|
|
{
|
|
__GLpixelState *ps;
|
|
__GLpixelMapHead *pMap;
|
|
GLint index = map - GL_PIXEL_MAP_I_TO_I;
|
|
GLfloat value;
|
|
#ifdef _MCD_
|
|
__GLGENcontext *gengc;
|
|
#endif
|
|
__GL_SETUP_NOT_IN_BEGIN();
|
|
|
|
#ifdef _MCD_
|
|
gengc = (__GLGENcontext *) gc;
|
|
#endif
|
|
|
|
ps = &gc->state.pixel;
|
|
pMap = ps->pixelMap;
|
|
|
|
switch (map) {
|
|
case GL_PIXEL_MAP_I_TO_I:
|
|
case GL_PIXEL_MAP_S_TO_S:
|
|
if (mapSize <= 0 || (mapSize & (mapSize - 1))) {
|
|
/*
|
|
** Maps indexed by color or stencil index must be sized
|
|
** to a power of two.
|
|
*/
|
|
__glSetError(GL_INVALID_VALUE);
|
|
return;
|
|
}
|
|
if (pMap[index].base.mapI) {
|
|
GCFREE(gc, pMap[index].base.mapI);
|
|
pMap[index].base.mapI = 0;
|
|
}
|
|
pMap[index].base.mapI = (GLint*)
|
|
GCALLOC(gc, (size_t) (mapSize * sizeof(GLint)));
|
|
if (!pMap[index].base.mapI) {
|
|
pMap[index].size = 0;
|
|
return;
|
|
}
|
|
pMap[index].size = mapSize;
|
|
while (--mapSize >= 0) {
|
|
value = values[mapSize];
|
|
if (value > 0) { /* round! */
|
|
pMap[index].base.mapI[mapSize] =
|
|
(GLint)(value + __glHalf);
|
|
} else {
|
|
pMap[index].base.mapI[mapSize] =
|
|
(GLint)(value - __glHalf);
|
|
}
|
|
}
|
|
#ifdef _MCD_
|
|
if (gengc->pMcdState) {
|
|
GenMcdPixelMap(gengc, map, mapSize,
|
|
(VOID *) pMap[index].base.mapI);
|
|
}
|
|
#endif
|
|
break;
|
|
case GL_PIXEL_MAP_I_TO_R:
|
|
case GL_PIXEL_MAP_I_TO_G:
|
|
case GL_PIXEL_MAP_I_TO_B:
|
|
case GL_PIXEL_MAP_I_TO_A:
|
|
if (mapSize <= 0 || (mapSize & (mapSize - 1))) {
|
|
/*
|
|
** Maps indexed by color or stencil index must be sized
|
|
** to a power of two.
|
|
*/
|
|
__glSetError(GL_INVALID_VALUE);
|
|
return;
|
|
}
|
|
case GL_PIXEL_MAP_R_TO_R:
|
|
case GL_PIXEL_MAP_G_TO_G:
|
|
case GL_PIXEL_MAP_B_TO_B:
|
|
case GL_PIXEL_MAP_A_TO_A:
|
|
if (mapSize < 0) {
|
|
/*
|
|
** Maps indexed by color component must not have negative size.
|
|
*/
|
|
__glSetError(GL_INVALID_VALUE);
|
|
return;
|
|
}
|
|
if (pMap[index].base.mapF) {
|
|
GCFREE(gc, pMap[index].base.mapF);
|
|
pMap[index].base.mapF = 0;
|
|
}
|
|
if (mapSize == 0) {
|
|
__glInitDefaultPixelMap(gc, map);
|
|
} else {
|
|
pMap[index].base.mapF = (__GLfloat*)
|
|
GCALLOC(gc,
|
|
(size_t) (mapSize * sizeof(__GLfloat)));
|
|
if (!pMap[index].base.mapF) {
|
|
pMap[index].size = 0;
|
|
return;
|
|
}
|
|
pMap[index].size = mapSize;
|
|
while (--mapSize >= 0) {
|
|
value = values[mapSize];
|
|
if (value < __glZero) value = __glZero;
|
|
else if (value > __glOne) value = __glOne;
|
|
pMap[index].base.mapF[mapSize] = value;
|
|
}
|
|
#ifdef _MCD_
|
|
if (gengc->pMcdState) {
|
|
GenMcdPixelMap(gengc, map, mapSize,
|
|
(VOID *) pMap[index].base.mapF);
|
|
}
|
|
#endif
|
|
}
|
|
break;
|
|
default:
|
|
__glSetError(GL_INVALID_ENUM);
|
|
return;
|
|
}
|
|
}
|
|
|
|
void APIPRIVATE __glim_PixelMapuiv(GLenum map, GLint mapSize,
|
|
const GLuint values[])
|
|
{
|
|
__GLpixelState *ps;
|
|
__GLpixelMapHead *pMap;
|
|
GLint index = map - GL_PIXEL_MAP_I_TO_I;
|
|
#ifdef _MCD_
|
|
__GLGENcontext *gengc;
|
|
#endif
|
|
__GL_SETUP_NOT_IN_BEGIN();
|
|
|
|
#ifdef _MCD_
|
|
gengc = (__GLGENcontext *) gc;
|
|
#endif
|
|
|
|
ps = &gc->state.pixel;
|
|
pMap = ps->pixelMap;
|
|
|
|
switch (map) {
|
|
case GL_PIXEL_MAP_I_TO_I:
|
|
case GL_PIXEL_MAP_S_TO_S:
|
|
if (mapSize <= 0 || (mapSize & (mapSize - 1))) {
|
|
/*
|
|
** Maps indexed by color or stencil index must be sized
|
|
** to a power of two.
|
|
*/
|
|
__glSetError(GL_INVALID_VALUE);
|
|
return;
|
|
}
|
|
if (pMap[index].base.mapI) {
|
|
GCFREE(gc, pMap[index].base.mapI);
|
|
pMap[index].base.mapI = 0;
|
|
}
|
|
pMap[index].base.mapI = (GLint*)
|
|
GCALLOC(gc, (size_t) (mapSize * sizeof(GLint)));
|
|
if (!pMap[index].base.mapI) {
|
|
pMap[index].size = 0;
|
|
return;
|
|
}
|
|
pMap[index].size = mapSize;
|
|
while (--mapSize >= 0) {
|
|
pMap[index].base.mapI[mapSize] = values[mapSize];
|
|
}
|
|
#ifdef _MCD_
|
|
if (gengc->pMcdState) {
|
|
GenMcdPixelMap(gengc, map, mapSize,
|
|
(VOID *) pMap[index].base.mapI);
|
|
}
|
|
#endif
|
|
break;
|
|
case GL_PIXEL_MAP_I_TO_R:
|
|
case GL_PIXEL_MAP_I_TO_G:
|
|
case GL_PIXEL_MAP_I_TO_B:
|
|
case GL_PIXEL_MAP_I_TO_A:
|
|
if (mapSize <= 0 || (mapSize & (mapSize - 1))) {
|
|
/*
|
|
** Maps indexed by color or stencil index must be sized
|
|
** to a power of two.
|
|
*/
|
|
__glSetError(GL_INVALID_VALUE);
|
|
return;
|
|
}
|
|
case GL_PIXEL_MAP_R_TO_R:
|
|
case GL_PIXEL_MAP_G_TO_G:
|
|
case GL_PIXEL_MAP_B_TO_B:
|
|
case GL_PIXEL_MAP_A_TO_A:
|
|
if (mapSize < 0) {
|
|
/*
|
|
** Maps indexed by color component must not have negative size.
|
|
*/
|
|
__glSetError(GL_INVALID_VALUE);
|
|
return;
|
|
}
|
|
if (pMap[index].base.mapF) {
|
|
GCFREE(gc, pMap[index].base.mapF);
|
|
pMap[index].base.mapF = 0;
|
|
}
|
|
if (mapSize == 0) {
|
|
__glInitDefaultPixelMap(gc, map);
|
|
} else {
|
|
pMap[index].base.mapF = (__GLfloat*)
|
|
GCALLOC(gc, (size_t) (mapSize * sizeof(GLfloat)));
|
|
if (!pMap[index].base.mapF) {
|
|
pMap[index].size = 0;
|
|
return;
|
|
}
|
|
pMap[index].size = mapSize;
|
|
while (--mapSize >= 0) {
|
|
pMap[index].base.mapF[mapSize] =
|
|
__GL_UI_TO_FLOAT(values[mapSize]);
|
|
}
|
|
#ifdef _MCD_
|
|
if (gengc->pMcdState) {
|
|
GenMcdPixelMap(gengc, map, mapSize,
|
|
(VOID *) pMap[index].base.mapF);
|
|
}
|
|
#endif
|
|
}
|
|
break;
|
|
default:
|
|
__glSetError(GL_INVALID_ENUM);
|
|
return;
|
|
}
|
|
}
|
|
|
|
void APIPRIVATE __glim_PixelMapusv(GLenum map, GLint mapSize,
|
|
const GLushort values[])
|
|
{
|
|
__GLpixelState *ps;
|
|
__GLpixelMapHead *pMap;
|
|
GLint index = map - GL_PIXEL_MAP_I_TO_I;
|
|
#ifdef _MCD_
|
|
__GLGENcontext *gengc;
|
|
#endif
|
|
__GL_SETUP_NOT_IN_BEGIN();
|
|
|
|
#ifdef _MCD_
|
|
gengc = (__GLGENcontext *) gc;
|
|
#endif
|
|
|
|
ps = &gc->state.pixel;
|
|
pMap = ps->pixelMap;
|
|
|
|
switch (map) {
|
|
case GL_PIXEL_MAP_I_TO_I:
|
|
case GL_PIXEL_MAP_S_TO_S:
|
|
if (mapSize <= 0 || (mapSize & (mapSize - 1))) {
|
|
/*
|
|
** Maps indexed by color or stencil index must be sized
|
|
** to a power of two.
|
|
*/
|
|
__glSetError(GL_INVALID_VALUE);
|
|
return;
|
|
}
|
|
if (pMap[index].base.mapI) {
|
|
GCFREE(gc, pMap[index].base.mapI);
|
|
pMap[index].base.mapI = 0;
|
|
}
|
|
pMap[index].base.mapI = (GLint*)
|
|
GCALLOC(gc, (size_t) (mapSize * sizeof(GLint)));
|
|
if (!pMap[index].base.mapI) {
|
|
pMap[index].size = 0;
|
|
return;
|
|
}
|
|
pMap[index].size = mapSize;
|
|
while (--mapSize >= 0) {
|
|
pMap[index].base.mapI[mapSize] = values[mapSize];
|
|
}
|
|
#ifdef _MCD_
|
|
if (gengc->pMcdState) {
|
|
GenMcdPixelMap(gengc, map, mapSize,
|
|
(VOID *) pMap[index].base.mapI);
|
|
}
|
|
#endif
|
|
break;
|
|
case GL_PIXEL_MAP_I_TO_R:
|
|
case GL_PIXEL_MAP_I_TO_G:
|
|
case GL_PIXEL_MAP_I_TO_B:
|
|
case GL_PIXEL_MAP_I_TO_A:
|
|
if (mapSize <= 0 || (mapSize & (mapSize - 1))) {
|
|
/*
|
|
** Maps indexed by color or stencil index must be sized
|
|
** to a power of two.
|
|
*/
|
|
__glSetError(GL_INVALID_VALUE);
|
|
return;
|
|
}
|
|
case GL_PIXEL_MAP_R_TO_R:
|
|
case GL_PIXEL_MAP_G_TO_G:
|
|
case GL_PIXEL_MAP_B_TO_B:
|
|
case GL_PIXEL_MAP_A_TO_A:
|
|
if (mapSize < 0) {
|
|
/*
|
|
** Maps indexed by color component must not have negative size.
|
|
*/
|
|
__glSetError(GL_INVALID_VALUE);
|
|
return;
|
|
}
|
|
if (pMap[index].base.mapF) {
|
|
GCFREE(gc, pMap[index].base.mapF);
|
|
pMap[index].base.mapF = 0;
|
|
}
|
|
if (mapSize == 0) {
|
|
__glInitDefaultPixelMap(gc, map);
|
|
} else {
|
|
pMap[index].base.mapF = (__GLfloat*)
|
|
GCALLOC(gc, (size_t) (mapSize * sizeof(GLfloat)));
|
|
if (!pMap[index].base.mapF) {
|
|
pMap[index].size = 0;
|
|
return;
|
|
}
|
|
pMap[index].size = mapSize;
|
|
while (--mapSize >= 0) {
|
|
pMap[index].base.mapF[mapSize] =
|
|
__GL_US_TO_FLOAT(values[mapSize]);
|
|
}
|
|
#ifdef _MCD_
|
|
if (gengc->pMcdState) {
|
|
GenMcdPixelMap(gengc, map, mapSize,
|
|
(VOID *) pMap[index].base.mapF);
|
|
}
|
|
#endif
|
|
}
|
|
break;
|
|
default:
|
|
__glSetError(GL_INVALID_ENUM);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
** Specify buffer from which pixels are read (another transfer mode).
|
|
*/
|
|
void APIPRIVATE __glim_ReadBuffer(GLenum mode)
|
|
{
|
|
GLint i;
|
|
__GL_SETUP_NOT_IN_BEGIN();
|
|
|
|
switch (mode) {
|
|
case GL_FRONT:
|
|
case GL_LEFT:
|
|
case GL_FRONT_LEFT:
|
|
gc->state.pixel.readBuffer = GL_FRONT;
|
|
break;
|
|
case GL_BACK:
|
|
case GL_BACK_LEFT:
|
|
if (!gc->modes.doubleBufferMode) {
|
|
__glSetError(GL_INVALID_OPERATION);
|
|
return;
|
|
}
|
|
gc->state.pixel.readBuffer = GL_BACK;
|
|
break;
|
|
case GL_AUX0:
|
|
case GL_AUX1:
|
|
case GL_AUX2:
|
|
case GL_AUX3:
|
|
i = mode - GL_AUX0;
|
|
if (i >= gc->modes.maxAuxBuffers) {
|
|
__glSetError(GL_INVALID_OPERATION);
|
|
return;
|
|
}
|
|
gc->state.pixel.readBuffer = mode;
|
|
break;
|
|
case GL_FRONT_RIGHT:
|
|
case GL_BACK_RIGHT:
|
|
case GL_RIGHT:
|
|
__glSetError(GL_INVALID_OPERATION);
|
|
return;
|
|
default:
|
|
__glSetError(GL_INVALID_ENUM);
|
|
return;
|
|
}
|
|
if (gc->state.pixel.readBufferReturn == mode) return;
|
|
gc->state.pixel.readBufferReturn = mode;
|
|
__GL_DELAY_VALIDATE_MASK(gc, __GL_DIRTY_PIXEL);
|
|
#ifdef _MCD_
|
|
MCD_STATE_DIRTY(gc, PIXELSTATE);
|
|
#endif
|
|
}
|