mirror of
https://github.com/reactos/reactos.git
synced 2024-06-28 17:01:28 +00:00
5f2bebf7a5
With this commit, we now use a forked version of MESA which only supports OpenGL 1.1, like the windows implementation does. It exposes : - The same pixel formats - The same set of extensions - Nothing more All of this without taking 10% of your build time. If you need a more modern option, look at the MESA package from Rapps, which is (and must be) maintained outside of this code tree. CORE-7499
727 lines
18 KiB
C
727 lines
18 KiB
C
/* $Id: logic.c,v 1.7 1997/07/24 01:24:11 brianp Exp $ */
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/*
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* Mesa 3-D graphics library
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* Version: 2.4
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* Copyright (C) 1995-1997 Brian Paul
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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* $Log: logic.c,v $
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* Revision 1.7 1997/07/24 01:24:11 brianp
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* changed precompiled header symbol from PCH to PC_HEADER
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*
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* Revision 1.6 1997/05/28 03:25:26 brianp
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* added precompiled header (PCH) support
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*
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* Revision 1.5 1997/04/20 20:28:49 brianp
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* replaced abort() with gl_problem()
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*
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* Revision 1.4 1997/03/04 18:56:57 brianp
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* added #include <stdlib.h> for abort()
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*
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* Revision 1.3 1997/01/28 22:16:31 brianp
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* added gl_logicop_rgba_span() and gl_logicop_rgba_pixels()
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*
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* Revision 1.2 1997/01/04 00:13:11 brianp
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* was using ! instead of ~ to invert pixel bits (ugh!)
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*
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* Revision 1.1 1996/09/13 01:38:16 brianp
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* Initial revision
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*
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*/
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#ifdef PC_HEADER
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#include "all.h"
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#else
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#include <stdlib.h>
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#include "alphabuf.h"
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#include "context.h"
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#include "dlist.h"
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#include "logic.h"
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#include "macros.h"
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#include "pb.h"
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#include "span.h"
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#include "types.h"
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#endif
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void gl_LogicOp( GLcontext *ctx, GLenum opcode )
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{
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if (INSIDE_BEGIN_END(ctx)) {
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gl_error( ctx, GL_INVALID_OPERATION, "glLogicOp" );
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return;
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}
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switch (opcode) {
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case GL_CLEAR:
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case GL_SET:
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case GL_COPY:
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case GL_COPY_INVERTED:
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case GL_NOOP:
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case GL_INVERT:
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case GL_AND:
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case GL_NAND:
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case GL_OR:
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case GL_NOR:
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case GL_XOR:
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case GL_EQUIV:
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case GL_AND_REVERSE:
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case GL_AND_INVERTED:
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case GL_OR_REVERSE:
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case GL_OR_INVERTED:
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ctx->Color.LogicOp = opcode;
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ctx->NewState |= NEW_RASTER_OPS;
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return;
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default:
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gl_error( ctx, GL_INVALID_ENUM, "glLogicOp" );
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return;
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}
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}
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/*
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* Apply the current logic operator to a span of CI pixels. This is only
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* used if the device driver can't do logic ops.
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*/
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void gl_logicop_ci_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
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GLuint index[], GLubyte mask[] )
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{
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GLuint dest[MAX_WIDTH];
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GLuint i;
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/* Read dest values from frame buffer */
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(*ctx->Driver.ReadIndexSpan)( ctx, n, x, y, dest );
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switch (ctx->Color.LogicOp) {
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case GL_CLEAR:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = 0;
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}
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}
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break;
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case GL_SET:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = 1;
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}
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}
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break;
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case GL_COPY:
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/* do nothing */
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break;
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case GL_COPY_INVERTED:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = ~index[i];
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}
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}
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break;
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case GL_NOOP:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = dest[i];
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}
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}
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break;
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case GL_INVERT:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = ~dest[i];
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}
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}
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break;
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case GL_AND:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] &= dest[i];
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}
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}
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break;
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case GL_NAND:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = ~(index[i] & dest[i]);
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}
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}
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break;
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case GL_OR:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] |= dest[i];
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}
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}
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break;
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case GL_NOR:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = ~(index[i] | dest[i]);
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}
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}
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break;
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case GL_XOR:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] ^= dest[i];
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}
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}
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break;
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case GL_EQUIV:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = ~(index[i] ^ dest[i]);
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}
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}
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break;
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case GL_AND_REVERSE:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = index[i] & ~dest[i];
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}
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}
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break;
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case GL_AND_INVERTED:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = ~index[i] & dest[i];
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}
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}
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break;
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case GL_OR_REVERSE:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = index[i] | ~dest[i];
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}
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}
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break;
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case GL_OR_INVERTED:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = ~index[i] | dest[i];
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}
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}
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break;
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default:
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gl_error( ctx, GL_INVALID_ENUM, "gl_logic error" );
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}
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}
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/*
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* Apply the current logic operator to an array of CI pixels. This is only
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* used if the device driver can't do logic ops.
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*/
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void gl_logicop_ci_pixels( GLcontext *ctx,
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GLuint n, const GLint x[], const GLint y[],
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GLuint index[], GLubyte mask[] )
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{
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GLuint dest[PB_SIZE];
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GLuint i;
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/* Read dest values from frame buffer */
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(*ctx->Driver.ReadIndexPixels)( ctx, n, x, y, dest, mask );
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switch (ctx->Color.LogicOp) {
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case GL_CLEAR:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = 0;
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}
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}
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break;
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case GL_SET:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = 1;
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}
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}
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break;
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case GL_COPY:
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/* do nothing */
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break;
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case GL_COPY_INVERTED:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = ~index[i];
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}
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}
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break;
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case GL_NOOP:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = dest[i];
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}
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}
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break;
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case GL_INVERT:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = ~dest[i];
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}
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}
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break;
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case GL_AND:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] &= dest[i];
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}
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}
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break;
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case GL_NAND:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = ~(index[i] & dest[i]);
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}
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}
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break;
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case GL_OR:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] |= dest[i];
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}
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}
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break;
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case GL_NOR:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = ~(index[i] | dest[i]);
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}
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}
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break;
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case GL_XOR:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] ^= dest[i];
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}
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}
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break;
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case GL_EQUIV:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = ~(index[i] ^ dest[i]);
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}
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}
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break;
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case GL_AND_REVERSE:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = index[i] & ~dest[i];
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}
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}
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break;
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case GL_AND_INVERTED:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = ~index[i] & dest[i];
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}
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}
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break;
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case GL_OR_REVERSE:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = index[i] | ~dest[i];
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}
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}
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break;
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case GL_OR_INVERTED:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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index[i] = ~index[i] | dest[i];
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}
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}
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break;
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default:
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gl_error( ctx, GL_INVALID_ENUM, "gl_logic_pixels error" );
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}
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}
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/*
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* Apply the current logic operator to a span of RGBA pixels. This is only
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* used if the device driver can't do logic ops.
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*/
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void gl_logicop_rgba_span( GLcontext *ctx,
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GLuint n, GLint x, GLint y,
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GLubyte red[], GLubyte green[],
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GLubyte blue[], GLubyte alpha[],
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GLubyte mask[] )
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{
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GLubyte rdest[MAX_WIDTH], gdest[MAX_WIDTH];
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GLubyte bdest[MAX_WIDTH], adest[MAX_WIDTH];
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GLuint i;
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/* Read span of current frame buffer pixels */
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gl_read_color_span( ctx, n, x, y, rdest, gdest, bdest, adest );
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/* apply logic op */
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switch (ctx->Color.LogicOp) {
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case GL_CLEAR:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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red[i] = green[i] = blue[i] = alpha[i] = 0;
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}
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}
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break;
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case GL_SET:
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{
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GLubyte r = (GLint) ctx->Visual->RedScale;
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GLubyte g = (GLint) ctx->Visual->GreenScale;
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GLubyte b = (GLint) ctx->Visual->BlueScale;
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GLubyte a = (GLint) ctx->Visual->AlphaScale;
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for (i=0;i<n;i++) {
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if (mask[i]) {
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red[i] = r;
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green[i] = g;
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blue[i] = b;
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alpha[i] = a;
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}
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}
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}
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break;
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case GL_COPY:
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/* do nothing */
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break;
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case GL_COPY_INVERTED:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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red[i] = ~red[i];
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green[i] = ~green[i];
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blue[i] = ~blue[i];
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alpha[i] = ~alpha[i];
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}
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}
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break;
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case GL_NOOP:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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red[i] = rdest[i];
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green[i] = gdest[i];
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blue[i] = bdest[i];
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alpha[i] = adest[i];
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}
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}
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break;
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case GL_INVERT:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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red[i] = ~rdest[i];
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green[i] = ~gdest[i];
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blue[i] = ~bdest[i];
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alpha[i] = ~adest[i];
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}
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}
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break;
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case GL_AND:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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red[i] &= rdest[i];
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green[i] &= gdest[i];
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blue[i] &= bdest[i];
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alpha[i] &= adest[i];
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}
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}
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break;
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case GL_NAND:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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red[i] = ~(red[i] & rdest[i]);
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green[i] = ~(green[i] & gdest[i]);
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blue[i] = ~(blue[i] & bdest[i]);
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alpha[i] = ~(alpha[i] & adest[i]);
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}
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}
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break;
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case GL_OR:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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red[i] |= rdest[i];
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green[i] |= gdest[i];
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blue[i] |= bdest[i];
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alpha[i] |= adest[i];
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}
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}
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break;
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case GL_NOR:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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red[i] = ~(red[i] | rdest[i]);
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green[i] = ~(green[i] | gdest[i]);
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blue[i] = ~(blue[i] | bdest[i]);
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alpha[i] = ~(alpha[i] | adest[i]);
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}
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}
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break;
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case GL_XOR:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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red[i] ^= rdest[i];
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green[i] ^= gdest[i];
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blue[i] ^= bdest[i];
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alpha[i] ^= adest[i];
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}
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}
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break;
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case GL_EQUIV:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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red[i] = ~(red[i] ^ rdest[i]);
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green[i] = ~(green[i] ^ gdest[i]);
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blue[i] = ~(blue[i] ^ bdest[i]);
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alpha[i] = ~(alpha[i] ^ adest[i]);
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}
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}
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break;
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case GL_AND_REVERSE:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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red[i] = red[i] & ~rdest[i];
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green[i] = green[i] & ~gdest[i];
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blue[i] = blue[i] & ~bdest[i];
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alpha[i] = alpha[i] & ~adest[i];
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}
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}
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break;
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case GL_AND_INVERTED:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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red[i] = ~red[i] & rdest[i];
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green[i] = ~green[i] & gdest[i];
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blue[i] = ~blue[i] & bdest[i];
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alpha[i] = ~alpha[i] & adest[i];
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}
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}
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break;
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case GL_OR_REVERSE:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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red[i] = red[i] | ~rdest[i];
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green[i] = green[i] | ~gdest[i];
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blue[i] = blue[i] | ~bdest[i];
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alpha[i] = alpha[i] | ~adest[i];
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}
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}
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break;
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case GL_OR_INVERTED:
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for (i=0;i<n;i++) {
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if (mask[i]) {
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red[i] = ~red[i] | rdest[i];
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green[i] = ~green[i] | gdest[i];
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blue[i] = ~blue[i] | bdest[i];
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alpha[i] = ~alpha[i] | adest[i];
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
/* should never happen */
|
|
gl_problem(ctx, "Bad function in gl_logicop_rgba_span");
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Apply the current logic operator to an array of RGBA pixels. This is only
|
|
* used if the device driver can't do logic ops.
|
|
*/
|
|
void gl_logicop_rgba_pixels( GLcontext *ctx,
|
|
GLuint n, const GLint x[], const GLint y[],
|
|
GLubyte red[], GLubyte green[],
|
|
GLubyte blue[], GLubyte alpha[],
|
|
GLubyte mask[] )
|
|
{
|
|
GLubyte rdest[PB_SIZE], gdest[PB_SIZE], bdest[PB_SIZE], adest[PB_SIZE];
|
|
GLuint i;
|
|
|
|
/* Read pixels from current color buffer */
|
|
(*ctx->Driver.ReadColorPixels)( ctx, n, x, y, rdest, gdest, bdest, adest, mask );
|
|
if (ctx->RasterMask & ALPHABUF_BIT) {
|
|
gl_read_alpha_pixels( ctx, n, x, y, adest, mask );
|
|
}
|
|
|
|
/* apply logic op */
|
|
switch (ctx->Color.LogicOp) {
|
|
case GL_CLEAR:
|
|
for (i=0;i<n;i++) {
|
|
if (mask[i]) {
|
|
red[i] = green[i] = blue[i] = alpha[i] = 0;
|
|
}
|
|
}
|
|
break;
|
|
case GL_SET:
|
|
{
|
|
GLubyte r = (GLint) ctx->Visual->RedScale;
|
|
GLubyte g = (GLint) ctx->Visual->GreenScale;
|
|
GLubyte b = (GLint) ctx->Visual->BlueScale;
|
|
GLubyte a = (GLint) ctx->Visual->AlphaScale;
|
|
for (i=0;i<n;i++) {
|
|
if (mask[i]) {
|
|
red[i] = r;
|
|
green[i] = g;
|
|
blue[i] = b;
|
|
alpha[i] = a;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case GL_COPY:
|
|
/* do nothing */
|
|
break;
|
|
case GL_COPY_INVERTED:
|
|
for (i=0;i<n;i++) {
|
|
if (mask[i]) {
|
|
red[i] = ~red[i];
|
|
green[i] = ~green[i];
|
|
blue[i] = ~blue[i];
|
|
alpha[i] = ~alpha[i];
|
|
}
|
|
}
|
|
break;
|
|
case GL_NOOP:
|
|
for (i=0;i<n;i++) {
|
|
if (mask[i]) {
|
|
red[i] = rdest[i];
|
|
green[i] = gdest[i];
|
|
blue[i] = bdest[i];
|
|
alpha[i] = adest[i];
|
|
}
|
|
}
|
|
break;
|
|
case GL_INVERT:
|
|
for (i=0;i<n;i++) {
|
|
if (mask[i]) {
|
|
red[i] = ~rdest[i];
|
|
green[i] = ~gdest[i];
|
|
blue[i] = ~bdest[i];
|
|
alpha[i] = ~adest[i];
|
|
}
|
|
}
|
|
break;
|
|
case GL_AND:
|
|
for (i=0;i<n;i++) {
|
|
if (mask[i]) {
|
|
red[i] &= rdest[i];
|
|
green[i] &= gdest[i];
|
|
blue[i] &= bdest[i];
|
|
alpha[i] &= adest[i];
|
|
}
|
|
}
|
|
break;
|
|
case GL_NAND:
|
|
for (i=0;i<n;i++) {
|
|
if (mask[i]) {
|
|
red[i] = ~(red[i] & rdest[i]);
|
|
green[i] = ~(green[i] & gdest[i]);
|
|
blue[i] = ~(blue[i] & bdest[i]);
|
|
alpha[i] = ~(alpha[i] & adest[i]);
|
|
}
|
|
}
|
|
break;
|
|
case GL_OR:
|
|
for (i=0;i<n;i++) {
|
|
if (mask[i]) {
|
|
red[i] |= rdest[i];
|
|
green[i] |= gdest[i];
|
|
blue[i] |= bdest[i];
|
|
alpha[i] |= adest[i];
|
|
}
|
|
}
|
|
break;
|
|
case GL_NOR:
|
|
for (i=0;i<n;i++) {
|
|
if (mask[i]) {
|
|
red[i] = ~(red[i] | rdest[i]);
|
|
green[i] = ~(green[i] | gdest[i]);
|
|
blue[i] = ~(blue[i] | bdest[i]);
|
|
alpha[i] = ~(alpha[i] | adest[i]);
|
|
}
|
|
}
|
|
break;
|
|
case GL_XOR:
|
|
for (i=0;i<n;i++) {
|
|
if (mask[i]) {
|
|
red[i] ^= rdest[i];
|
|
green[i] ^= gdest[i];
|
|
blue[i] ^= bdest[i];
|
|
alpha[i] ^= adest[i];
|
|
}
|
|
}
|
|
break;
|
|
case GL_EQUIV:
|
|
for (i=0;i<n;i++) {
|
|
if (mask[i]) {
|
|
red[i] = ~(red[i] ^ rdest[i]);
|
|
green[i] = ~(green[i] ^ gdest[i]);
|
|
blue[i] = ~(blue[i] ^ bdest[i]);
|
|
alpha[i] = ~(alpha[i] ^ adest[i]);
|
|
}
|
|
}
|
|
break;
|
|
case GL_AND_REVERSE:
|
|
for (i=0;i<n;i++) {
|
|
if (mask[i]) {
|
|
red[i] = red[i] & ~rdest[i];
|
|
green[i] = green[i] & ~gdest[i];
|
|
blue[i] = blue[i] & ~bdest[i];
|
|
alpha[i] = alpha[i] & ~adest[i];
|
|
}
|
|
}
|
|
break;
|
|
case GL_AND_INVERTED:
|
|
for (i=0;i<n;i++) {
|
|
if (mask[i]) {
|
|
red[i] = ~red[i] & rdest[i];
|
|
green[i] = ~green[i] & gdest[i];
|
|
blue[i] = ~blue[i] & bdest[i];
|
|
alpha[i] = ~alpha[i] & adest[i];
|
|
}
|
|
}
|
|
break;
|
|
case GL_OR_REVERSE:
|
|
for (i=0;i<n;i++) {
|
|
if (mask[i]) {
|
|
red[i] = red[i] | ~rdest[i];
|
|
green[i] = green[i] | ~gdest[i];
|
|
blue[i] = blue[i] | ~bdest[i];
|
|
alpha[i] = alpha[i] | ~adest[i];
|
|
}
|
|
}
|
|
break;
|
|
case GL_OR_INVERTED:
|
|
for (i=0;i<n;i++) {
|
|
if (mask[i]) {
|
|
red[i] = ~red[i] | rdest[i];
|
|
green[i] = ~green[i] | gdest[i];
|
|
blue[i] = ~blue[i] | bdest[i];
|
|
alpha[i] = ~alpha[i] | adest[i];
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
/* should never happen */
|
|
gl_problem(ctx, "Bad function in gl_logicop_rgba_pixels");
|
|
return;
|
|
}
|
|
}
|