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-rw-r--r--progs/tests/texwrap.c354
1 files changed, 0 insertions, 354 deletions
diff --git a/progs/tests/texwrap.c b/progs/tests/texwrap.c
deleted file mode 100644
index bb26635d67..0000000000
--- a/progs/tests/texwrap.c
+++ /dev/null
@@ -1,354 +0,0 @@
-
-/*
- * Test texture wrap modes.
- * Press 'b' to toggle texture image borders. You should see the same
- * rendering whether or not you're using borders.
- *
- * Brian Paul March 2001
- */
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <GL/glew.h>
-#include <GL/glut.h>
-
-
-#ifndef GL_CLAMP_TO_BORDER
-#define GL_CLAMP_TO_BORDER 0x812D
-#endif
-
-#ifndef GL_MIRRORED_REPEAT
-#define GL_MIRRORED_REPEAT 0x8370
-#endif
-
-#ifndef GL_EXT_texture_mirror_clamp
-#define GL_MIRROR_CLAMP_EXT 0x8742
-#define GL_MIRROR_CLAMP_TO_EDGE_EXT 0x8743
-#define GL_MIRROR_CLAMP_TO_BORDER_EXT 0x8912
-#endif
-
-#define BORDER_TEXTURE 1
-#define NO_BORDER_TEXTURE 2
-#define COLOR_TEX_CORNERS 0
-
-#define SIZE 8
-static GLubyte BorderImage[SIZE+2][SIZE+2][4];
-static GLubyte NoBorderImage[SIZE][SIZE][4];
-static GLuint Border = 0;
-
-#define TILE_SIZE 110
-
-#define WRAP_MODE(m) { m , # m, GL_TRUE, 1.0, { NULL, NULL } }
-#define WRAP_EXT(m,e1,e2,v) { m , # m, GL_FALSE, v, { e1, e2 } }
-
-struct wrap_mode {
- GLenum mode;
- const char * name;
- GLboolean supported;
- GLfloat version;
- const char * extension_names[2];
-};
-
-static struct wrap_mode modes[] = {
- WRAP_MODE( GL_REPEAT ),
- WRAP_MODE( GL_CLAMP ),
- WRAP_EXT ( GL_CLAMP_TO_EDGE, "GL_EXT_texture_edge_clamp",
- "GL_SGIS_texture_edge_clamp",
- 1.2 ),
- WRAP_EXT ( GL_CLAMP_TO_BORDER, "GL_ARB_texture_border_clamp",
- "GL_SGIS_texture_border_clamp",
- 1.3 ),
- WRAP_EXT ( GL_MIRRORED_REPEAT, "GL_ARB_texture_mirrored_repeat",
- "GL_IBM_texture_mirrored_repeat",
- 1.4 ),
- WRAP_EXT ( GL_MIRROR_CLAMP_EXT, "GL_ATI_texture_mirror_once",
- "GL_EXT_texture_mirror_clamp",
- 999.0 ),
- WRAP_EXT ( GL_MIRROR_CLAMP_TO_BORDER_EXT, "GL_EXT_texture_mirror_clamp",
- NULL,
- 999.0 ),
- WRAP_EXT ( GL_MIRROR_CLAMP_TO_EDGE_EXT, "GL_ATI_texture_mirror_once",
- "GL_EXT_texture_mirror_clamp",
- 999.0 ),
- { 0, NULL, GL_FALSE, 0.0, { NULL, NULL } }
-};
-
-static void
-PrintString(const char *s)
-{
- while (*s) {
- glutBitmapCharacter(GLUT_BITMAP_8_BY_13, (int) *s);
- s++;
- }
-}
-
-
-static void Display( void )
-{
- GLenum i, j;
- GLint offset;
- GLfloat version;
-
- /* Fill in the extensions that are supported.
- */
-
- version = atof( (char *) glGetString( GL_VERSION ) );
- for ( i = 0 ; modes[i].mode != 0 ; i++ ) {
- if ( ((modes[i].extension_names[0] != NULL)
- && glutExtensionSupported(modes[i].extension_names[0]))
- || ((modes[i].extension_names[1] != NULL)
- && glutExtensionSupported(modes[i].extension_names[1])) ) {
- modes[i].supported = GL_TRUE;
- }
- else if ( !modes[i].supported && (modes[i].version <= version) ) {
- fprintf( stderr, "WARNING: OpenGL library meets minimum version\n"
- " requirement for %s, but the\n"
- " extension string is not advertised.\n"
- " (%s%s%s)\n",
- modes[i].name,
- modes[i].extension_names[0],
- (modes[i].extension_names[1] != NULL)
- ? " or " : "",
- (modes[i].extension_names[1] != NULL)
- ? modes[i].extension_names[1] : "" );
- modes[i].supported = GL_TRUE;
- }
- }
-
-
- glClearColor(0.5, 0.5, 0.5, 1.0);
- glClear( GL_COLOR_BUFFER_BIT );
-
-#if 0
- /* draw texture as image */
- glDisable(GL_TEXTURE_2D);
- glWindowPos2iARB(1, 1);
- glDrawPixels(6, 6, GL_RGBA, GL_UNSIGNED_BYTE, (void *) TexImage);
-#endif
-
- glBindTexture(GL_TEXTURE_2D, Border ? BORDER_TEXTURE : NO_BORDER_TEXTURE);
-
-
- /* loop over min/mag filters */
- for (i = 0; i < 2; i++) {
- offset = 0;
-
- if (i) {
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- }
- else {
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
- }
-
- /* loop over border modes */
- for (j = 0; modes[j].mode != 0; j++) {
- const GLfloat x0 = 0, y0 = 0, x1 = (TILE_SIZE - 10), y1 = (TILE_SIZE - 10);
- const GLfloat b = 1.2;
- const GLfloat s0 = -b, t0 = -b, s1 = 1.0+b, t1 = 1.0+b;
-
- if ( modes[j].supported != GL_TRUE )
- continue;
-
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, modes[j].mode);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, modes[j].mode);
-
- glPushMatrix();
- glTranslatef(offset * TILE_SIZE + 10, i * TILE_SIZE + 40, 0);
- offset++;
-
- glEnable(GL_TEXTURE_2D);
- glColor3f(1, 1, 1);
- glBegin(GL_POLYGON);
- glTexCoord2f(s0, t0); glVertex2f(x0, y0);
- glTexCoord2f(s1, t0); glVertex2f(x1, y0);
- glTexCoord2f(s1, t1); glVertex2f(x1, y1);
- glTexCoord2f(s0, t1); glVertex2f(x0, y1);
- glEnd();
-
- /* draw red outline showing bounds of texture at s=0,1 and t=0,1 */
- glDisable(GL_TEXTURE_2D);
- glColor3f(1, 0, 0);
- glBegin(GL_LINE_LOOP);
- glVertex2f(x0 + b * (x1-x0) / (s1-s0), y0 + b * (y1-y0) / (t1-t0));
- glVertex2f(x1 - b * (x1-x0) / (s1-s0), y0 + b * (y1-y0) / (t1-t0));
- glVertex2f(x1 - b * (x1-x0) / (s1-s0), y1 - b * (y1-y0) / (t1-t0));
- glVertex2f(x0 + b * (x1-x0) / (s1-s0), y1 - b * (y1-y0) / (t1-t0));
- glEnd();
-
- glPopMatrix();
- }
- }
-
- glDisable(GL_TEXTURE_2D);
- glColor3f(1, 1, 1);
- offset = 0;
- for (i = 0; modes[i].mode != 0; i++) {
- if ( modes[i].supported ) {
- glWindowPos2iARB( offset * TILE_SIZE + 10, 5 + ((offset & 1) * 15) );
- PrintString(modes[i].name);
- offset++;
- }
- }
-
- glutSwapBuffers();
-}
-
-
-static void Reshape( int width, int height )
-{
- glViewport( 0, 0, width, height );
- glMatrixMode( GL_PROJECTION );
- glLoadIdentity();
- glOrtho(0, width, 0, height, -1, 1);
- glMatrixMode( GL_MODELVIEW );
- glLoadIdentity();
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
- (void) x;
- (void) y;
- switch (key) {
- case 'b':
- Border = !Border;
- printf("Texture Border Size = %d\n", Border);
- break;
- case 27:
- exit(0);
- break;
- }
- glutPostRedisplay();
-}
-
-
-static void Init( void )
-{
- static const GLubyte border[4] = { 0, 255, 0, 255 };
- static const GLfloat borderf[4] = { 0, 1.0, 0, 1.0 };
- GLint i, j;
-
- for (i = 0; i < SIZE+2; i++) {
- for (j = 0; j < SIZE+2; j++) {
- if (i == 0 || j == 0 || i == SIZE+1 || j == SIZE+1) {
- /* border color */
- BorderImage[i][j][0] = border[0];
- BorderImage[i][j][1] = border[1];
- BorderImage[i][j][2] = border[2];
- BorderImage[i][j][3] = border[3];
- }
- else if ((i + j) & 1) {
- /* white */
- BorderImage[i][j][0] = 255;
- BorderImage[i][j][1] = 255;
- BorderImage[i][j][2] = 255;
- BorderImage[i][j][3] = 255;
- }
- else {
- /* black */
- BorderImage[i][j][0] = 0;
- BorderImage[i][j][1] = 0;
- BorderImage[i][j][2] = 0;
- BorderImage[i][j][3] = 0;
- }
- }
- }
-
- glBindTexture(GL_TEXTURE_2D, BORDER_TEXTURE);
-#ifdef TEST_PBO_DLIST
- /* test fetching teximage from PBO in display list */
- {
- GLuint b = 42, l = 10;
-
- glBindBufferARB(GL_PIXEL_UNPACK_BUFFER, b);
- glBufferDataARB(GL_PIXEL_UNPACK_BUFFER, sizeof(BorderImage),
- BorderImage, GL_STREAM_DRAW);
-
- glNewList(l, GL_COMPILE);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SIZE+2, SIZE+2, 1,
- GL_RGBA, GL_UNSIGNED_BYTE, (void *) 0/* BorderImage*/);
- glEndList();
- glCallList(l);
- glBindBufferARB(GL_PIXEL_UNPACK_BUFFER, 0);
- }
-#else
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SIZE+2, SIZE+2, 1,
- GL_RGBA, GL_UNSIGNED_BYTE, (void *) BorderImage);
-#endif
-
- for (i = 0; i < SIZE; i++) {
- for (j = 0; j < SIZE; j++) {
-#if COLOR_TEX_CORNERS
- if (i == 0 && j == 0) {
- /* lower-left texel = RED */
- NoBorderImage[i][j][0] = 255;
- NoBorderImage[i][j][1] = 0;
- NoBorderImage[i][j][2] = 0;
- NoBorderImage[i][j][3] = 255;
- }
- else if (i == 0 && j == SIZE-1) {
- /* lower-right corner = GREEN */
- NoBorderImage[i][j][0] = 0;
- NoBorderImage[i][j][1] = 255;
- NoBorderImage[i][j][2] = 0;
- NoBorderImage[i][j][3] = 255;
- }
- else if (i == SIZE-1 && j == 0) {
- /* upper-left corner = BLUE */
- NoBorderImage[i][j][0] = 0;
- NoBorderImage[i][j][1] = 0;
- NoBorderImage[i][j][2] = 255;
- NoBorderImage[i][j][3] = 255;
- }
- else if (i == SIZE-1 && j == SIZE-1) {
- /* upper-right corner = YELLOW */
- NoBorderImage[i][j][0] = 255;
- NoBorderImage[i][j][1] = 255;
- NoBorderImage[i][j][2] = 0;
- NoBorderImage[i][j][3] = 255;
- }
- else
-#endif
- if ((i + j) & 1) {
- /* white */
- NoBorderImage[i][j][0] = 255;
- NoBorderImage[i][j][1] = 255;
- NoBorderImage[i][j][2] = 255;
- NoBorderImage[i][j][3] = 255;
- }
- else {
- /* black */
- NoBorderImage[i][j][0] = 0;
- NoBorderImage[i][j][1] = 0;
- NoBorderImage[i][j][2] = 0;
- NoBorderImage[i][j][3] = 0;
- }
- }
- }
-
- glBindTexture(GL_TEXTURE_2D, NO_BORDER_TEXTURE);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SIZE, SIZE, 0,
- GL_RGBA, GL_UNSIGNED_BYTE, (void *) NoBorderImage);
- glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, borderf);
-}
-
-
-int main( int argc, char *argv[] )
-{
- glutInit( &argc, argv );
- glutInitWindowPosition( 0, 0 );
- glutInitWindowSize( 1000, 270 );
- glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
- glutCreateWindow(argv[0]);
- glewInit();
- glutReshapeFunc( Reshape );
- glutKeyboardFunc( Key );
- glutDisplayFunc( Display );
- Init();
- glutMainLoop();
- return 0;
-}
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