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Diffstat (limited to 'progs/tests/manytex.c')
| -rw-r--r-- | progs/tests/manytex.c | 382 |
1 files changed, 0 insertions, 382 deletions
diff --git a/progs/tests/manytex.c b/progs/tests/manytex.c deleted file mode 100644 index 70ad4a767ec..00000000000 --- a/progs/tests/manytex.c +++ /dev/null @@ -1,382 +0,0 @@ -/* $Id: manytex.c,v 1.5 2005-09-15 01:58:39 brianp Exp $ */ - -/* - * test handling of many texture maps - * Also tests texture priority and residency. - * - * Brian Paul - * August 2, 2000 - */ - - -#include <assert.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <math.h> -#include <GL/glut.h> - - -static GLint NumTextures = 20; -static GLuint *TextureID = NULL; -static GLint *TextureWidth = NULL, *TextureHeight = NULL; -static GLboolean *TextureResidency = NULL; -static GLint TexWidth = 128, TexHeight = 128; -static GLfloat Zrot = 0; -static GLboolean Anim = GL_TRUE; -static GLint WinWidth = 500, WinHeight = 400; -static GLboolean MipMap = GL_FALSE; -static GLboolean LinearFilter = GL_FALSE; -static GLboolean RandomSize = GL_FALSE; -static GLint Rows, Columns; -static GLint LowPriorityCount = 0; - - -static void Idle( void ) -{ - Zrot += 1.0; - glutPostRedisplay(); -} - - -static void Display( void ) -{ - GLfloat spacing = WinWidth / Columns; - GLfloat size = spacing * 0.4; - GLint i; - - /* test residency */ - if (0) - { - GLboolean b; - GLint i, resident; - b = glAreTexturesResident(NumTextures, TextureID, TextureResidency); - if (b) { - printf("all resident\n"); - } - else { - resident = 0; - for (i = 0; i < NumTextures; i++) { - if (TextureResidency[i]) { - resident++; - } - } - printf("%d of %d texture resident\n", resident, NumTextures); - } - } - - /* render the textured quads */ - glClear( GL_COLOR_BUFFER_BIT ); - for (i = 0; i < NumTextures; i++) { - GLint row = i / Columns; - GLint col = i % Columns; - GLfloat x = col * spacing + spacing * 0.5; - GLfloat y = row * spacing + spacing * 0.5; - - GLfloat maxDim = (TextureWidth[i] > TextureHeight[i]) - ? TextureWidth[i] : TextureHeight[i]; - GLfloat w = TextureWidth[i] / maxDim; - GLfloat h = TextureHeight[i] / maxDim; - - glPushMatrix(); - glTranslatef(x, y, 0.0); - glRotatef(Zrot, 0, 0, 1); - glScalef(size, size, 1); - - glBindTexture(GL_TEXTURE_2D, TextureID[i]); - glBegin(GL_POLYGON); -#if 0 - glTexCoord2f(0, 0); glVertex2f(-1, -1); - glTexCoord2f(1, 0); glVertex2f( 1, -1); - glTexCoord2f(1, 1); glVertex2f( 1, 1); - glTexCoord2f(0, 1); glVertex2f(-1, 1); -#else - glTexCoord2f(0, 0); glVertex2f(-w, -h); - glTexCoord2f(1, 0); glVertex2f( w, -h); - glTexCoord2f(1, 1); glVertex2f( w, h); - glTexCoord2f(0, 1); glVertex2f(-w, h); -#endif - glEnd(); - glPopMatrix(); - } - - glutSwapBuffers(); -} - - -static void Reshape( int width, int height ) -{ - WinWidth = width; - WinHeight = height; - glViewport( 0, 0, width, height ); - glMatrixMode( GL_PROJECTION ); - glLoadIdentity(); - glOrtho(0, width, 0, height, -1, 1); - glMatrixMode( GL_MODELVIEW ); - glLoadIdentity(); -} - - -/* - * Return a random int in [min, max]. - */ -static int RandomInt(int min, int max) -{ - int i = rand(); - int j = i % (max - min + 1); - return min + j; -} - - - -static void Init( void ) -{ - GLint i; - - if (RandomSize) { - printf("Creating %d %s random-size textures, ", NumTextures, - MipMap ? "Mipmapped" : "non-Mipmapped"); - } - else { - printf("Creating %d %s %d x %d textures, ", NumTextures, - MipMap ? "Mipmapped" : "non-Mipmapped", - TexWidth, TexHeight); - } - - if (LinearFilter) { - printf("bilinear filtering\n"); - } - else { - printf("nearest filtering\n"); - } - - - /* compute number of rows and columns of rects */ - { - GLfloat area = (GLfloat) (WinWidth * WinHeight) / (GLfloat) NumTextures; - GLfloat edgeLen = sqrt(area); - - Columns = WinWidth / edgeLen; - Rows = (NumTextures + Columns - 1) / Columns; - printf("Rows: %d Cols: %d\n", Rows, Columns); - } - - - if (!TextureID) { - TextureID = (GLuint *) malloc(sizeof(GLuint) * NumTextures); - assert(TextureID); - glGenTextures(NumTextures, TextureID); - } - - if (!TextureResidency) { - TextureResidency = (GLboolean *) malloc(sizeof(GLboolean) * NumTextures); - assert(TextureResidency); - } - - if (!TextureWidth) { - TextureWidth = (GLint *) malloc(sizeof(GLint) * NumTextures); - assert(TextureWidth); - } - if (!TextureHeight) { - TextureHeight = (GLint *) malloc(sizeof(GLint) * NumTextures); - assert(TextureHeight); - } - - for (i = 0; i < NumTextures; i++) { - GLubyte color[4]; - GLubyte *texImage; - GLint j, row, col; - - row = i / Columns; - col = i % Columns; - - glBindTexture(GL_TEXTURE_2D, TextureID[i]); - - if (i < LowPriorityCount) - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_PRIORITY, 0.5F); - - if (RandomSize) { -#if 0 - int k = (glutGet(GLUT_ELAPSED_TIME) % 7) + 2; - TexWidth = 1 << k; - TexHeight = 1 << k; -#else - TexWidth = 1 << RandomInt(2, 7); - TexHeight = 1 << RandomInt(2, 7); - printf("Random size of %3d: %d x %d\n", i, TexWidth, TexHeight); -#endif - } - - TextureWidth[i] = TexWidth; - TextureHeight[i] = TexHeight; - - texImage = (GLubyte*) malloc(4 * TexWidth * TexHeight * sizeof(GLubyte)); - assert(texImage); - - /* determine texture color */ - color[0] = (GLint) (255.0 * ((float) col / (Columns - 1))); - color[1] = 127; - color[2] = (GLint) (255.0 * ((float) row / (Rows - 1))); - color[3] = 255; - - /* fill in solid-colored teximage */ - for (j = 0; j < TexWidth * TexHeight; j++) { - texImage[j*4+0] = color[0]; - texImage[j*4+1] = color[1]; - texImage[j*4+2] = color[2]; - texImage[j*4+3] = color[3]; - } - - if (MipMap) { - GLint level = 0; - GLint w = TexWidth, h = TexHeight; - while (1) { - glTexImage2D(GL_TEXTURE_2D, level, GL_RGBA, w, h, 0, - GL_RGBA, GL_UNSIGNED_BYTE, texImage); - if (w == 1 && h == 1) - break; - if (w > 1) - w /= 2; - if (h > 1) - h /= 2; - level++; - /*printf("%d: %d x %d\n", level, w, h);*/ - } - if (LinearFilter) { - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, - GL_LINEAR_MIPMAP_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - } - else { - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, - GL_NEAREST_MIPMAP_NEAREST); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - } - } - else { - /* Set corners to white */ - int k = 0; - texImage[k+0] = texImage[k+1] = texImage[k+2] = texImage[k+3] = 255; - k = (TexWidth - 1) * 4; - texImage[k+0] = texImage[k+1] = texImage[k+2] = texImage[k+3] = 255; - k = (TexWidth * TexHeight - TexWidth) * 4; - texImage[k+0] = texImage[k+1] = texImage[k+2] = texImage[k+3] = 255; - k = (TexWidth * TexHeight - 1) * 4; - texImage[k+0] = texImage[k+1] = texImage[k+2] = texImage[k+3] = 255; - - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TexWidth, TexHeight, 0, - GL_RGBA, GL_UNSIGNED_BYTE, texImage); - if (LinearFilter) { - 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); - } - } - - free(texImage); - } - - glEnable(GL_TEXTURE_2D); -} - - -static void Key( unsigned char key, int x, int y ) -{ - const GLfloat step = 3.0; - (void) x; - (void) y; - switch (key) { - case 'a': - Anim = !Anim; - if (Anim) - glutIdleFunc(Idle); - else - glutIdleFunc(NULL); - break; - case 's': - Idle(); - break; - case 'z': - Zrot -= step; - break; - case 'Z': - Zrot += step; - break; - case ' ': - Init(); - break; - case 27: - exit(0); - break; - } - glutPostRedisplay(); -} - - -int main( int argc, char *argv[] ) -{ - GLint i; - - glutInit( &argc, argv ); - glutInitWindowPosition( 0, 0 ); - glutInitWindowSize( WinWidth, WinHeight ); - glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE ); - glutCreateWindow(argv[0]); - glutReshapeFunc( Reshape ); - glutKeyboardFunc( Key ); - glutDisplayFunc( Display ); - if (Anim) - glutIdleFunc(Idle); - - for (i = 1; i < argc; i++) { - if (strcmp(argv[i], "-n") == 0) { - NumTextures = atoi(argv[i+1]); - if (NumTextures <= 0) { - printf("Error, bad number of textures\n"); - return 1; - } - i++; - } - else if (strcmp(argv[i], "-mipmap") == 0) { - MipMap = GL_TRUE; - } - else if (strcmp(argv[i], "-linear") == 0) { - LinearFilter = GL_TRUE; - } - else if (strcmp(argv[i], "-size") == 0) { - TexWidth = atoi(argv[i+1]); - TexHeight = atoi(argv[i+2]); - assert(TexWidth >= 1); - assert(TexHeight >= 1); - i += 2; - } - else if (strcmp(argv[i], "-randomsize") == 0) { - RandomSize = GL_TRUE; - } - else if (strcmp(argv[i], "-lowpri") == 0) { - LowPriorityCount = atoi(argv[i+1]); - i++; - } - else { - printf("Usage:\n"); - printf(" manytex [options]\n"); - printf("Options:\n"); - printf(" -n <number of texture objects>\n"); - printf(" -size <width> <height> - specify texture size\n"); - printf(" -randomsize - use random size textures\n"); - printf(" -mipmap - generate mipmaps\n"); - printf(" -linear - use linear filtering instead of nearest\n"); - printf(" -lowpri <n> - Set lower priority on <n> textures\n"); - return 0; - } - } - - Init(); - - glutMainLoop(); - - return 0; -} |