diff options
Diffstat (limited to 'progs/tests/floattex.c')
-rw-r--r-- | progs/tests/floattex.c | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/progs/tests/floattex.c b/progs/tests/floattex.c deleted file mode 100644 index 2345a49b27..0000000000 --- a/progs/tests/floattex.c +++ /dev/null @@ -1,169 +0,0 @@ -/* - * Test floating point textures. - * No actual rendering, yet. - */ - - -#include <assert.h> -#include <stdio.h> -#include <stdlib.h> -#include <math.h> -#include <GL/glut.h> - - -/* XXX - temporary */ -#ifndef GL_ARB_texture_float -#define GL_ARB_texture_float 1 -#define GL_TEXTURE_RED_TYPE_ARB 0x9000 -#define GL_TEXTURE_GREEN_TYPE_ARB 0x9001 -#define GL_TEXTURE_BLUE_TYPE_ARB 0x9002 -#define GL_TEXTURE_ALPHA_TYPE_ARB 0x9003 -#define GL_TEXTURE_LUMINANCE_TYPE_ARB 0x9004 -#define GL_TEXTURE_INTENSITY_TYPE_ARB 0x9005 -#define GL_TEXTURE_DEPTH_TYPE_ARB 0x9006 -#define GL_UNSIGNED_NORMALIZED_ARB 0x9007 -#define GL_RGBA32F_ARB 0x8814 -#define GL_RGB32F_ARB 0x8815 -#define GL_ALPHA32F_ARB 0x8816 -#define GL_INTENSITY32F_ARB 0x8817 -#define GL_LUMINANCE32F_ARB 0x8818 -#define GL_LUMINANCE_ALPHA32F_ARB 0x8819 -#define GL_RGBA16F_ARB 0x881A -#define GL_RGB16F_ARB 0x881B -#define GL_ALPHA16F_ARB 0x881C -#define GL_INTENSITY16F_ARB 0x881D -#define GL_LUMINANCE16F_ARB 0x881E -#define GL_LUMINANCE_ALPHA16F_ARB 0x881F -#endif - - -static GLboolean -CheckError( int line ) -{ - GLenum error = glGetError(); - if (error) { - char *err = (char *) gluErrorString( error ); - fprintf( stderr, "GL Error: %s at line %d\n", err, line ); - return GL_TRUE; - } - return GL_FALSE; -} - - -static void -Draw(void) -{ - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - - glPushMatrix(); - - glutSolidCube(2.0); - - glPopMatrix(); - - glutSwapBuffers(); -} - - -static void -Reshape(int width, int height) -{ - glViewport(0, 0, width, height); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 25.0); - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - glTranslatef(0.0, 0.0, -15.0); -} - - -static void -Key(unsigned char key, int x, int y) -{ - (void) x; - (void) y; - switch (key) { - case 27: - exit(0); - break; - } - glutPostRedisplay(); -} - - - -static void -Init(void) -{ - GLfloat tex[16][16][4]; - GLfloat tex2[16][16][4]; - GLint i, j, t; - - if (!glutExtensionSupported("GL_MESAX_texture_float")) { - printf("Sorry, this test requires GL_MESAX_texture_float\n"); - exit(1); - } - - for (i = 0; i < 16; i++) { - for (j = 0; j < 16; j++) { - GLfloat s = i / 15.0; - tex[i][j][0] = s; - tex[i][j][1] = 2.0 * s; - tex[i][j][2] = -3.0 * s; - tex[i][j][3] = 4.0 * s; - } - } - - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F_ARB, 16, 16, 0, GL_RGBA, - GL_FLOAT, tex); - CheckError(__LINE__); - - glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_RED_TYPE_ARB, &t); - assert(t == GL_FLOAT); - glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_GREEN_TYPE_ARB, &t); - assert(t == GL_FLOAT); - glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_BLUE_TYPE_ARB, &t); - assert(t == GL_FLOAT); - glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_ALPHA_TYPE_ARB, &t); - assert(t == GL_FLOAT); - - CheckError(__LINE__); - - /* read back the texture and make sure values are correct */ - glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_FLOAT, tex2); - CheckError(__LINE__); - for (i = 0; i < 16; i++) { - for (j = 0; j < 16; j++) { - if (tex[i][j][0] != tex2[i][j][0] || - tex[i][j][1] != tex2[i][j][1] || - tex[i][j][2] != tex2[i][j][2] || - tex[i][j][3] != tex2[i][j][3]) { - printf("tex[%d][%d] %g %g %g %g != tex2[%d][%d] %g %g %g %g\n", - i, j, - tex[i][j][0], tex[i][j][1], tex[i][j][2], tex[i][j][3], - i, j, - tex2[i][j][0], tex2[i][j][1], tex2[i][j][2], tex2[i][j][3]); - } - } - } - - -} - - -int -main(int argc, char *argv[]) -{ - glutInit(&argc, argv); - glutInitWindowPosition(0, 0); - glutInitWindowSize(400, 400); - glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH); - glutCreateWindow(argv[0]); - glutReshapeFunc(Reshape); - glutKeyboardFunc(Key); - glutDisplayFunc(Draw); - Init(); - glutMainLoop(); - return 0; -} |