diff options
Diffstat (limited to 'progs/miniglx/texline.c')
-rw-r--r-- | progs/miniglx/texline.c | 267 |
1 files changed, 0 insertions, 267 deletions
diff --git a/progs/miniglx/texline.c b/progs/miniglx/texline.c deleted file mode 100644 index 098077f247..0000000000 --- a/progs/miniglx/texline.c +++ /dev/null @@ -1,267 +0,0 @@ - -/* - * Test textured lines. - * - * Brian Paul - * September 2000 - */ - - -#include <stdio.h> -#include <stdlib.h> -#include <math.h> -#include <GL/glut.h> -#include "../util/readtex.c" /* I know, this is a hack. */ - -#define TEXTURE_FILE "../images/girl.rgb" - -static GLboolean Antialias = GL_FALSE; -static GLboolean Animate = GL_FALSE; -static GLint Texture = 1; -static GLboolean Stipple = GL_FALSE; -static GLfloat LineWidth = 1.0; - -static GLfloat Xrot = -60.0, Yrot = 0.0, Zrot = 0.0; -static GLfloat DYrot = 1.0; -static GLboolean Points = GL_FALSE; -static GLfloat Scale = 1.0; - -static void Idle( void ) -{ - if (Animate) { - Zrot += DYrot; - glutPostRedisplay(); - } -} - - -static void Display( void ) -{ - GLfloat x, y, s, t; - - glClear( GL_COLOR_BUFFER_BIT ); - - glPushMatrix(); - glRotatef(Xrot, 1.0, 0.0, 0.0); - glRotatef(Yrot, 0.0, 1.0, 0.0); - glRotatef(Zrot, 0.0, 0.0, 1.0); - glScalef(Scale, Scale, Scale); - - if (Texture) - glColor3f(1, 1, 1); - - if (Points) { - glBegin(GL_POINTS); - for (t = 0.0; t <= 1.0; t += 0.025) { - for (s = 0.0; s <= 1.0; s += 0.025) { - x = s * 2.0 - 1.0; - y = t * 2.0 - 1.0; - if (!Texture) - glColor3f(1, 0, 1); - glMultiTexCoord2fARB(GL_TEXTURE1_ARB, t, s); - glTexCoord2f(s, t); - glVertex2f(x, y); - } - } - glEnd(); - } - else { - glBegin(GL_LINES); - for (t = 0.0; t <= 1.0; t += 0.025) { - x = t * 2.0 - 1.0; - if (!Texture) - glColor3f(1, 0, 1); - glTexCoord2f(t, 0.0); - glMultiTexCoord2fARB(GL_TEXTURE1_ARB, 0.0, t); - glVertex2f(x, -1.0); - if (!Texture) - glColor3f(0, 1, 0); - glTexCoord2f(t, 1.0); - glMultiTexCoord2fARB(GL_TEXTURE1_ARB, 1.0, t); - glVertex2f(x, 1.0); - } - glEnd(); - } - - glPopMatrix(); - - glutSwapBuffers(); -} - - -static void Reshape( int width, int height ) -{ - GLfloat ar = (float) width / height; - glViewport( 0, 0, width, height ); - glMatrixMode( GL_PROJECTION ); - glLoadIdentity(); - glFrustum( -ar, ar, -1.0, 1.0, 10.0, 100.0 ); - glMatrixMode( GL_MODELVIEW ); - glLoadIdentity(); - glTranslatef( 0.0, 0.0, -12.0 ); -} - - -static void Key( unsigned char key, int x, int y ) -{ - (void) x; - (void) y; - switch (key) { - case 'a': - Antialias = !Antialias; - if (Antialias) { - glEnable(GL_LINE_SMOOTH); - glEnable(GL_POINT_SMOOTH); - glEnable(GL_BLEND); - glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - } - else { - glDisable(GL_LINE_SMOOTH); - glDisable(GL_POINT_SMOOTH); - glDisable(GL_BLEND); - } - break; - case 't': - Texture++; - if (Texture > 2) - Texture = 0; - if (Texture == 0) { - glActiveTextureARB(GL_TEXTURE0_ARB); - glDisable(GL_TEXTURE_2D); - glActiveTextureARB(GL_TEXTURE1_ARB); - glDisable(GL_TEXTURE_2D); - } - else if (Texture == 1) { - glActiveTextureARB(GL_TEXTURE0_ARB); - glEnable(GL_TEXTURE_2D); - glActiveTextureARB(GL_TEXTURE1_ARB); - glDisable(GL_TEXTURE_2D); - } - else { - glActiveTextureARB(GL_TEXTURE0_ARB); - glEnable(GL_TEXTURE_2D); - glActiveTextureARB(GL_TEXTURE1_ARB); - glEnable(GL_TEXTURE_2D); - } - break; - case 'w': - LineWidth -= 0.25; - if (LineWidth < 0.25) - LineWidth = 0.25; - glLineWidth(LineWidth); - glPointSize(LineWidth); - break; - case 'W': - LineWidth += 0.25; - if (LineWidth > 8.0) - LineWidth = 8.0; - glLineWidth(LineWidth); - glPointSize(LineWidth); - break; - case 'p': - Points = !Points; - break; - case 's': - Stipple = !Stipple; - if (Stipple) - glEnable(GL_LINE_STIPPLE); - else - glDisable(GL_LINE_STIPPLE); - break; - case ' ': - Animate = !Animate; - if (Animate) - glutIdleFunc(Idle); - else - glutIdleFunc(NULL); - break; - case 27: - exit(0); - break; - } - printf("LineWidth, PointSize = %f\n", LineWidth); - glutPostRedisplay(); -} - - -static void SpecialKey( int key, int x, int y ) -{ - float step = 3.0; - (void) x; - (void) y; - - switch (key) { - case GLUT_KEY_UP: - Xrot += step; - break; - case GLUT_KEY_DOWN: - Xrot -= step; - break; - case GLUT_KEY_LEFT: - Yrot += step; - break; - case GLUT_KEY_RIGHT: - Yrot -= step; - break; - } - glutPostRedisplay(); -} - - -static void Init( int argc, char *argv[] ) -{ - GLuint u; - for (u = 0; u < 2; u++) { - glActiveTextureARB(GL_TEXTURE0_ARB + u); - glBindTexture(GL_TEXTURE_2D, 10+u); - if (u == 0) - glEnable(GL_TEXTURE_2D); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - - if (u == 0) - glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); - else - glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_ADD); - - glPixelStorei(GL_UNPACK_ALIGNMENT, 1); - if (!LoadRGBMipmaps(TEXTURE_FILE, GL_RGB)) { - printf("Error: couldn't load texture image\n"); - exit(1); - } - } - - glLineStipple(1, 0xff); - - if (argc > 1 && strcmp(argv[1], "-info")==0) { - printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); - printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); - printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); - printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS)); - } -} - - -int main( int argc, char *argv[] ) -{ - glutInit( &argc, argv ); - glutInitWindowSize( 400, 300 ); - - glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE ); - - glutCreateWindow(argv[0] ); - - Init(argc, argv); - - glutReshapeFunc( Reshape ); - glutKeyboardFunc( Key ); - glutSpecialFunc( SpecialKey ); - glutDisplayFunc( Display ); - if (Animate) - glutIdleFunc( Idle ); - - glutMainLoop(); - return 0; -} |