diff options
Diffstat (limited to 'progs/tests/texrect.c')
-rw-r--r-- | progs/tests/texrect.c | 360 |
1 files changed, 0 insertions, 360 deletions
diff --git a/progs/tests/texrect.c b/progs/tests/texrect.c deleted file mode 100644 index 10061ee586..0000000000 --- a/progs/tests/texrect.c +++ /dev/null @@ -1,360 +0,0 @@ - -/* GL_NV_texture_rectangle test - * - * Brian Paul - * 14 June 2002 - */ - - -#include <math.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <GL/glew.h> -#include <GL/glut.h> -#include "readtex.h" - -#define TEXTURE_0_FILE "../images/girl.rgb" -#define TEXTURE_1_FILE "../images/reflect.rgb" - -#define TEX0 1 -#define TEX7 8 -#define ANIMATE 10 -#define CLAMP 20 -#define CLAMP_TO_EDGE 21 -#define CLAMP_TO_BORDER 22 -#define LINEAR_FILTER 30 -#define NEAREST_FILTER 31 -#define QUIT 100 - -static GLboolean Animate = GL_FALSE; -static GLint NumUnits = 2; -static GLboolean TexEnabled[8]; -static GLint Width[8], Height[8]; /* image sizes */ -static GLenum Format[8]; - -static GLfloat Xrot = 00.0, Yrot = 00.0, Zrot = 0.0; - - -static void Idle( void ) -{ - Zrot = glutGet(GLUT_ELAPSED_TIME) * 0.01; - glutPostRedisplay(); -} - - -static void DrawObject(void) -{ - GLint i; - GLfloat d = 10; /* so we can see how borders are handled */ - - glColor3f(.1, .1, .1); /* modulate this */ - - glPushMatrix(); - - glRotatef(Zrot, 0, 0, 1); - - glBegin(GL_QUADS); - - for (i = 0; i < NumUnits; i++) - glMultiTexCoord2fARB(GL_TEXTURE0_ARB + i, -d, -d); - glVertex2f(-1.0, -1.0); - - for (i = 0; i < NumUnits; i++) - glMultiTexCoord2fARB(GL_TEXTURE0_ARB + i, Width[i]+d, -d); - glVertex2f(1.0, -1.0); - - for (i = 0; i < NumUnits; i++) - glMultiTexCoord2fARB(GL_TEXTURE0_ARB + i, Width[i]+d, Height[i]+d); - glVertex2f(1.0, 1.0); - - for (i = 0; i < NumUnits; i++) - glMultiTexCoord2fARB(GL_TEXTURE0_ARB + i, -d, Height[i]+d); - glVertex2f(-1.0, 1.0); - - glEnd(); - glPopMatrix(); -} - - -static void Display( void ) -{ - 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(5.0, 5.0, 5.0); - DrawObject(); - 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, 100.0 ); - glMatrixMode( GL_MODELVIEW ); - glLoadIdentity(); - glTranslatef( 0.0, 0.0, -35.0 ); -} - - -static void ModeMenu(int entry) -{ - GLint i; - if (entry >= TEX0 && entry < TEX0 + NumUnits) { - /* toggle */ - i = entry - TEX0; - TexEnabled[i] = !TexEnabled[i]; - glActiveTextureARB(GL_TEXTURE0_ARB + i); - if (TexEnabled[i]) { - glEnable(GL_TEXTURE_RECTANGLE_NV); - } - else { - glDisable(GL_TEXTURE_RECTANGLE_NV); - } - printf("Enabled: "); - for (i = 0; i < NumUnits; i++) - printf("%d ", (int) TexEnabled[i]); - printf("\n"); - } - else if (entry==ANIMATE) { - Animate = !Animate; - if (Animate) - glutIdleFunc(Idle); - else - glutIdleFunc(NULL); - } - else if (entry==CLAMP) { - for (i = 0; i < NumUnits; i++) { - glActiveTextureARB(GL_TEXTURE0_ARB + i); - glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_WRAP_S, GL_CLAMP); - glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_WRAP_T, GL_CLAMP); - } - } - else if (entry==CLAMP_TO_EDGE) { - for (i = 0; i < NumUnits; i++) { - glActiveTextureARB(GL_TEXTURE0_ARB + i); - glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); - } - } - else if (entry==CLAMP_TO_BORDER) { - for (i = 0; i < NumUnits; i++) { - glActiveTextureARB(GL_TEXTURE0_ARB + i); - glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER); - glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER); - } - } - else if (entry==NEAREST_FILTER) { - for (i = 0; i < NumUnits; i++) { - glActiveTextureARB(GL_TEXTURE0_ARB + i); - glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - } - } - else if (entry==LINEAR_FILTER) { - for (i = 0; i < NumUnits; i++) { - glActiveTextureARB(GL_TEXTURE0_ARB + i); - glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - } - } - - else if (entry==QUIT) { - exit(0); - } - - glutPostRedisplay(); -} - - -static void Key( unsigned char key, int x, int y ) -{ - (void) x; - (void) y; - switch (key) { - case 'z': - Zrot -= 1.0; - break; - case 'Z': - Zrot += 1.0; - break; - case 'a': - Animate = !Animate; - if (Animate) - glutIdleFunc(Idle); - else - glutIdleFunc(NULL); - break; - case 27: - exit(0); - break; - } - 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[] ) -{ - const GLenum wrap = GL_CLAMP; - GLuint texObj[8]; - GLint size, i; - - if (!glutExtensionSupported("GL_ARB_multitexture")) { - printf("Sorry, GL_ARB_multitexture needed by this program\n"); - exit(1); - } - - if (!glutExtensionSupported("GL_NV_texture_rectangle")) { - printf("Sorry, GL_NV_texture_rectangle needed by this program\n"); - exit(1); - } - - glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &NumUnits); - printf("%d texture units supported, using 2.\n", NumUnits); - if (NumUnits > 2) - NumUnits = 2; - - glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE_NV, &size); - printf("%d x %d max texture rectangle size\n", size, size); - - glPixelStorei(GL_UNPACK_ALIGNMENT, 1); - - for (i = 0; i < NumUnits; i++) { - TexEnabled[i] = GL_TRUE; - } - - /* allocate two texture objects */ - glGenTextures(NumUnits, texObj); - - /* setup the texture objects */ - for (i = 0; i < NumUnits; i++) { - - glActiveTextureARB(GL_TEXTURE0_ARB + i); - - glBindTexture(GL_TEXTURE_RECTANGLE_NV, texObj[i]); - glTexParameteri(GL_TEXTURE_RECTANGLE_NV, - GL_TEXTURE_MIN_FILTER, GL_NEAREST); - glTexParameteri(GL_TEXTURE_RECTANGLE_NV, - GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_WRAP_S, wrap); - glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_WRAP_T, wrap); - - if (i == 0) { - GLubyte *img = LoadRGBImage(TEXTURE_0_FILE, &Width[0], &Height[0], - &Format[0]); - if (!img) { - printf("Error: couldn't load texture image\n"); - exit(1); - } - printf("Texture %d: %s (%d x %d)\n", i, - TEXTURE_0_FILE, Width[0], Height[0]); - glTexImage2D(GL_TEXTURE_RECTANGLE_NV, 0, GL_RGB, - Width[0], Height[0], 0, - Format[0], GL_UNSIGNED_BYTE, img); - } - else { - GLubyte *img = LoadRGBImage(TEXTURE_1_FILE, &Width[1], &Height[1], - &Format[1]); - if (!img) { - printf("Error: couldn't load texture image\n"); - exit(1); - } - printf("Texture %d: %s (%d x %d)\n", i, - TEXTURE_1_FILE, Width[1], Height[1]); - glTexImage2D(GL_TEXTURE_RECTANGLE_NV, 0, GL_RGB, - Width[1], Height[1], 0, - Format[1], GL_UNSIGNED_BYTE, img); - } - - if (i < 1) - glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_ADD); - else - glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_ADD); - - if (TexEnabled[i]) - glEnable(GL_TEXTURE_RECTANGLE_NV); - } - - glShadeModel(GL_FLAT); - glClearColor(0.3, 0.3, 0.4, 1.0); - - 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[] ) -{ - GLint i; - - glutInit( &argc, argv ); - glutInitWindowSize( 300, 300 ); - glutInitWindowPosition( 0, 0 ); - glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE ); - glutCreateWindow(argv[0] ); - glewInit(); - - Init( argc, argv ); - - glutReshapeFunc( Reshape ); - glutKeyboardFunc( Key ); - glutSpecialFunc( SpecialKey ); - glutDisplayFunc( Display ); - if (Animate) - glutIdleFunc( Idle ); - - glutCreateMenu(ModeMenu); - - for (i = 0; i < NumUnits; i++) { - char s[100]; - sprintf(s, "Toggle Texture %d", i); - glutAddMenuEntry(s, TEX0 + i); - } - glutAddMenuEntry("Toggle Animation", ANIMATE); - glutAddMenuEntry("GL_CLAMP", CLAMP); - glutAddMenuEntry("GL_CLAMP_TO_EDGE", CLAMP_TO_EDGE); - glutAddMenuEntry("GL_CLAMP_TO_BORDER", CLAMP_TO_BORDER); - glutAddMenuEntry("GL_NEAREST", NEAREST_FILTER); - glutAddMenuEntry("GL_LINEAR", LINEAR_FILTER); - glutAddMenuEntry("Quit", QUIT); - glutAttachMenu(GLUT_RIGHT_BUTTON); - - glutMainLoop(); - return 0; -} |