+/*
+Copyright (C) 2003, 2010 - Wolfire Games
+
+This file is part of Lugaru.
+
+Lugaru is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+Lugaru is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Lugaru. If not, see <http://www.gnu.org/licenses/>.
+*/
#include "Game.h"
#include "Stereo.h"
extern int kContextWidth;
extern int kContextHeight;
-bool CanInitStereo(StereoMode mode) {
- GLint stencilbits = 0;
-
- switch(mode) {
- case stereoNone:
- return true;
- break;
- case stereoAnaglyph:
- return true;
- break;
- case stereoHorizontalInterlaced:
- case stereoVerticalInterlaced:
- glGetIntegerv(GL_STENCIL_BITS, &stencilbits);
- if ( stencilbits < 1 ) {
- fprintf(stderr, "Failed to get a stencil buffer, interlaced stereo not available.\n");
- return false;
- } else {
- fprintf(stderr, "Stencil buffer has %i bits, good.\n", stencilbits);
- }
-
- default:
- return false;
- }
+bool CanInitStereo(StereoMode mode)
+{
+ GLint stencilbits = 0;
+
+ switch (mode) {
+ case stereoNone:
+ return true;
+ break;
+ case stereoAnaglyph:
+ return true;
+ break;
+ case stereoHorizontalInterlaced:
+ case stereoVerticalInterlaced:
+ glGetIntegerv(GL_STENCIL_BITS, &stencilbits);
+ if ( stencilbits < 1 ) {
+ fprintf(stderr, "Failed to get a stencil buffer, interlaced stereo not available.\n");
+ return false;
+ } else {
+ fprintf(stderr, "Stencil buffer has %i bits, good.\n", stencilbits);
+ }
+ return true;
+ break;
+ default:
+ return false;
+ }
+
+}
+
+void InitStereo(StereoMode mode)
+{
+ switch (mode) {
+ default:
+ case stereoNone:
+ case stereoAnaglyph:
+ glDisable(GL_STENCIL_TEST);
+ return;
+ case stereoHorizontalInterlaced:
+ case stereoVerticalInterlaced:
+ fprintf(stderr, "Screen width is %i, height is %i\n", kContextWidth, kContextHeight);
+
+ // Setup stencil buffer
+ glDisable( GL_DEPTH_TEST);
+ glDisable(GL_CULL_FACE);
+ glDisable(GL_LIGHTING);
+ glDisable(GL_TEXTURE_2D);
+
+ glEnable( GL_STENCIL_TEST);
+ glClearStencil(0);
+ glClear( GL_STENCIL_BUFFER_BIT );
+ glStencilFunc(GL_ALWAYS, 0x1, 0x1);
+ glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE);
+
+ // Setup viewport
+ glViewport(0, 0, kContextWidth, kContextHeight);
+ glMatrixMode(GL_PROJECTION);
+ glPushMatrix();
+ glLoadIdentity();
+ glOrtho((GLdouble)0, (GLdouble)kContextWidth, (GLdouble)kContextHeight, 0, -1, 1);
+ glMatrixMode(GL_MODELVIEW);
+ glPushMatrix();
+ glLoadIdentity();
+ glColorMask( GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE );
+ glDisable(GL_LINE_SMOOTH);
+
+ // Add 0.5 to the coordinates, because OpenGL considers a pixel should be
+ // turned on when a line passes through the center of it.
+ if ( mode == stereoHorizontalInterlaced ) {
+ for (int y = 0; y < kContextHeight; y += 2) {
+ glBegin(GL_LINES);
+ glVertex3f(0.5, y + 0.5, 0);
+ glVertex3f(kContextWidth + 0.5, y + 0.5, 0);
+ glEnd();
+ }
+ } else {
+ for (int x = 0; x < kContextWidth; x += 2) {
+ glBegin(GL_LINES);
+ glVertex3f(x + 0.5, 0.5, 0);
+ glVertex3f(x + 0.5, kContextHeight + 0.5, 0);
+ glEnd();
+ }
+ }
+
+ glColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
+
+ glPopMatrix();
+ glMatrixMode(GL_PROJECTION);
+ glPopMatrix();
+
+ glStencilFunc(GL_NOTEQUAL, 0x01, 0x01);
+ glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
+ glEnable( GL_DEPTH_TEST);
+ glEnable(GL_CULL_FACE);
+ glEnable(GL_LIGHTING);
+ glEnable(GL_TEXTURE_2D);
+ }
}
-void InitStereo(StereoMode mode) {
- switch(mode) {
- case stereoNone:
- return;
- case stereoAnaglyph:
- return;
- case stereoHorizontalInterlaced:
- case stereoVerticalInterlaced:
-
- fprintf(stderr, "Screen width is %i, height is %i\n", kContextWidth, kContextHeight);
-
- glEnable( GL_STENCIL_TEST);
- glClearStencil(0);
- glClear( GL_STENCIL_BUFFER_BIT );
- glStencilFunc(GL_ALWAYS, 0x1, 0x1);
- glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE);
-
-
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
- glPixelStorei(GL_UNPACK_ROW_LENGTH, 3);
- glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
- glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
- glColorMask( 1.0, 1.0, 1.0, 1.0 );
- char stencil[] = {64,127,255};
-
- glViewport(0,0, kContextWidth, kContextHeight);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho((GLdouble)0, (GLdouble)kContextWidth, (GLdouble)kContextHeight, 0, -1, 1);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-
- for(int y=0;y<kContextHeight;y+=2) {
-
- for(int x=0;x<kContextWidth;x++) {
- glRasterPos2i(x, y);
- glDrawPixels(1, 1, GL_RGB, GL_UNSIGNED_BYTE, &stencil);
- }
- }
-
- glStencilFunc(GL_NOTEQUAL, 0x01, 0x01);
- glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
-
- // Something gets screwed up due to the changes above
- // revert to default.
- glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
- glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
- glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
- glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
- }
-
-}
\ No newline at end of file
+const char* StereoModeName(StereoMode mode)
+{
+ switch (mode) {
+ case stereoNone:
+ return "None";
+ break;
+ case stereoAnaglyph:
+ return "Anaglyph";
+ break;
+ case stereoHorizontalInterlaced:
+ return "Horizontal interlacing";
+ break;
+ case stereoVerticalInterlaced:
+ return "Vertical interlacing";
+ break;
+ case stereoHorizontalSplit:
+ return "Horizontal split";
+ break;
+ case stereoVerticalSplit:
+ return "Vertical split";
+ break;
+ case stereoOpenGL:
+ return "OpenGL";
+ break;
+ default:
+ return "(error)";
+ break;
+ }
+}
projects / lugaru.git / blobdiff