diff options
author | Eric Anholt <[email protected]> | 2010-05-21 09:32:38 -0700 |
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committer | Eric Anholt <[email protected]> | 2010-05-21 12:20:39 -0700 |
commit | 68fc4b415e322f6744299e39864fbc377c6eff74 (patch) | |
tree | 4bafffd8b0105174f3c5c0ae327a005be9145990 /progs/tests/persp_hint.c | |
parent | e4f4489e3fc0b36d72821b55794fb843b2b7fa5f (diff) |
Remove demos that have moved to git+ssh://git.freedesktop.org/git/mesa/demos.
The remaining programs are ones I've had difficulty finding a build
environment for to make the build system or are unit tests that should
probably live next to their code instead. Hopefully people can bring
over the build for remaining pieces they care about.
Diffstat (limited to 'progs/tests/persp_hint.c')
-rw-r--r-- | progs/tests/persp_hint.c | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/progs/tests/persp_hint.c b/progs/tests/persp_hint.c deleted file mode 100644 index 27140d1f567..00000000000 --- a/progs/tests/persp_hint.c +++ /dev/null @@ -1,149 +0,0 @@ -/* - * Test the GL_PERSPECTIVE_CORRECTION_HINT setting and its effect on - * color interpolation. - * - * Press 'i' to toggle between GL_NICEST/GL_FASTEST/GL_DONT_CARE. - * - * Depending on the driver, the hint may make a difference, or not. - */ - - -#include <stdlib.h> -#include <stdio.h> -#include <GL/glut.h> - - -static GLenum PerspHint = GL_DONT_CARE; - - -static void -init(void) -{ - GLubyte image[256][256][4]; - GLuint i, j; - for (i = 0; i < 256; i++) { - for (j = 0; j < 256; j++) { - image[i][j][0] = j; - image[i][j][1] = j; - image[i][j][2] = j; - image[i][j][3] = 255; - } - } - glTexImage2D(GL_TEXTURE_2D, 0, 4, 256, 256, 0, - GL_RGBA, GL_UNSIGNED_BYTE, image); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL); - - printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); -} - - -static void -display(void) -{ - switch (PerspHint) { - case GL_NICEST: - printf("hint = GL_NICEST\n"); - break; - case GL_FASTEST: - printf("hint = GL_FASTEST\n"); - break; - case GL_DONT_CARE: - printf("hint = GL_DONT_CARE\n"); - break; - default: - ; - } - - glClear(GL_COLOR_BUFFER_BIT); - -#if 1 - glBegin(GL_QUADS); - /* exercise perspective interpolation */ - glColor3f(0.0, 0.0, 0.0); glVertex3f(-1.0, -1.0, -1.0); - glColor3f(0.0, 0.0, 0.0); glVertex3f(-1.0, 1.0, -1.0); - glColor3f(0.0, 1.0, 0.0); glVertex3f( 7.0, 1.0, -7.0); - glColor3f(0.0, 1.0, 0.0); glVertex3f( 7.0, -1.0, -7.0); - - /* stripe of linear interpolation */ - glColor3f(0.0, 0.0, 0.0); glVertex3f(-1.0, -0.1, -1.001); - glColor3f(0.0, 0.0, 0.0); glVertex3f(-1.0, 0.1, -1.001); - glColor3f(0.0, 1.0, 0.0); glVertex3f( 1.0, 0.1, -1.001); - glColor3f(0.0, 1.0, 0.0); glVertex3f( 1.0, -0.1, -1.001); - glEnd(); -#else - glEnable(GL_TEXTURE_2D); - glBegin(GL_QUADS); - glTexCoord2f(0.0, 0.0); glVertex3f(-1.0, 0.0, -1.0); - glTexCoord2f(0.0, 1.0); glVertex3f(-1.0, 1.0, -1.0); - glTexCoord2f(1.0, 1.0); glVertex3f( 5.0, 1.0, -7.0); - glTexCoord2f(1.0, 0.0); glVertex3f( 5.0, 0.0, -7.0); - - glTexCoord2f(0.0, 0.0); glVertex3f(-1.0, -1.0, -1.001); - glTexCoord2f(0.0, 1.0); glVertex3f(-1.0, 0.0, -1.001); - glTexCoord2f(1.0, 1.0); glVertex3f( 1.0, 0.0, -1.001); - glTexCoord2f(1.0, 0.0); glVertex3f( 1.0, -1.0, -1.001); - glEnd(); -#endif - - glFlush(); -} - - -static void -reshape(int w, int h) -{ - glViewport(0, 0, w, h); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - gluPerspective(90.0, (GLfloat) w / h, 1.0, 300.0); - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); -} - - -static void -key(unsigned char k, int x, int y) -{ - switch (k) { - case 27: /* Escape */ - exit(0); - break; - case 'i': - if (PerspHint == GL_FASTEST) - PerspHint = GL_NICEST; - else if (PerspHint == GL_NICEST) - PerspHint = GL_DONT_CARE; - else - PerspHint = GL_FASTEST; - glHint(GL_PERSPECTIVE_CORRECTION_HINT, PerspHint); - break; - default: - return; - } - glutPostRedisplay(); -} - - -int -main(int argc, char** argv) -{ - glutInit(&argc, argv); - glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB); - glutInitWindowSize (500, 500); - glutCreateWindow (argv[0]); - glutReshapeFunc (reshape); - glutDisplayFunc(display); - glutKeyboardFunc(key); - - printf("Main quad: perspective projection\n"); - printf("Middle stripe: linear interpolation\n"); - printf("Press 'i' to toggle interpolation hint\n"); - init(); - - glutMainLoop(); - return 0; -} |