diff options
| -rw-r--r-- | progs/tests/mipmap_limits.c | 224 |
1 files changed, 119 insertions, 105 deletions
diff --git a/progs/tests/mipmap_limits.c b/progs/tests/mipmap_limits.c index 5b899cd1551..b8e52ddd7b8 100644 --- a/progs/tests/mipmap_limits.c +++ b/progs/tests/mipmap_limits.c @@ -77,15 +77,16 @@ InitValues(void) } -static void MakeImage(int level, int width, int height, const GLubyte color[4]) +static void +MakeImage(int level, int width, int height, const GLubyte color[4]) { const int makeStripes = 0; - GLubyte img[512*512*3]; + GLubyte img[512 * 512 * 3]; int i, j; for (i = 0; i < height; i++) { for (j = 0; j < width; j++) { int k = (i * width + j) * 3; - int p = (i/8) & makeStripes; + int p = (i / 8) & makeStripes; if (p == 0) { img[k + 0] = color[0]; img[k + 1] = color[1]; @@ -104,7 +105,8 @@ static void MakeImage(int level, int width, int height, const GLubyte color[4]) } -static void makeImages(int image) +static void +makeImages(int image) { #define WIDTH 512 #define HEIGHT 512 @@ -121,19 +123,20 @@ static void makeImages(int image) if (width != WIDTH || height != HEIGHT) { GLubyte *newImage = malloc(WIDTH * HEIGHT * 4); gluScaleImage(format, width, height, GL_UNSIGNED_BYTE, image, - WIDTH, HEIGHT, GL_UNSIGNED_BYTE, newImage); + WIDTH, HEIGHT, GL_UNSIGNED_BYTE, newImage); free(image); image = newImage; } printf("Using GL_SGIS_generate_mipmap\n"); glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE); glTexImage2D(GL_TEXTURE_2D, 0, format, WIDTH, HEIGHT, 0, - format, GL_UNSIGNED_BYTE, image); + format, GL_UNSIGNED_BYTE, image); glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_FALSE); free(image); /* make sure mipmap was really generated correctly */ - width = WIDTH; height = HEIGHT; + width = WIDTH; + height = HEIGHT; for (i = 0; i < 10; i++) { GLint w, h; glGetTexLevelParameteriv(GL_TEXTURE_2D, i, GL_TEXTURE_WIDTH, &w); @@ -142,18 +145,19 @@ static void makeImages(int image) width /= 2; height /= 2; } - } else { + } + else { static const GLubyte colors[10][3] = { - {128, 128, 128 }, - { 0, 255, 255 }, - { 255, 255, 0 }, - { 255, 0, 255 }, - { 255, 0, 0 }, - { 0, 255, 0 }, - { 0, 0, 255 }, - { 0, 255, 255 }, - { 255, 255, 0 }, - { 255, 255, 255 } + {128, 128, 128}, + {0, 255, 255}, + {255, 255, 0}, + {255, 0, 255}, + {255, 0, 0}, + {0, 255, 0}, + {0, 0, 255}, + {0, 255, 255}, + {255, 255, 0}, + {255, 255, 255} }; int i, sz = 512; @@ -165,7 +169,8 @@ static void makeImages(int image) } } -static void myinit(void) +static void +myinit(void) { InitValues(); @@ -191,14 +196,16 @@ static void myinit(void) glEnable(GL_TEXTURE_2D); } -static void display(void) +static void +display(void) { GLfloat tcm = 1.0; glBindTexture(GL_TEXTURE_2D, texCurrent); - printf("BASE_LEVEL=%d MAX_LEVEL=%d MIN_LOD=%.2g MAX_LOD=%.2g Bias=%.2g Filter=%s\n", - BaseLevel, MaxLevel, MinLod, MaxLod, LodBias, - NearestFilter ? "NEAREST" : "LINEAR"); + printf + ("BASE_LEVEL=%d MAX_LEVEL=%d MIN_LOD=%.2g MAX_LOD=%.2g Bias=%.2g Filter=%s\n", + BaseLevel, MaxLevel, MinLod, MaxLod, LodBias, + NearestFilter ? "NEAREST" : "LINEAR"); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, BaseLevel); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, MaxLevel); @@ -208,32 +215,37 @@ static void display(void) if (NearestFilter) { glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, - GL_NEAREST_MIPMAP_NEAREST); + GL_NEAREST_MIPMAP_NEAREST); } else { glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, - GL_LINEAR_MIPMAP_LINEAR); + GL_LINEAR_MIPMAP_LINEAR); } glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, LodBias); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glBegin(GL_QUADS); - glTexCoord2f(0.0, 0.0); glVertex3f(-2.0, -1.0, 0.0); - glTexCoord2f(0.0, tcm); glVertex3f(-2.0, 1.0, 0.0); - glTexCoord2f(tcm * 3000.0, tcm); glVertex3f(3000.0, 1.0, -6000.0); - glTexCoord2f(tcm * 3000.0, 0.0); glVertex3f(3000.0, -1.0, -6000.0); + glTexCoord2f(0.0, 0.0); + glVertex3f(-2.0, -1.0, 0.0); + glTexCoord2f(0.0, tcm); + glVertex3f(-2.0, 1.0, 0.0); + glTexCoord2f(tcm * 3000.0, tcm); + glVertex3f(3000.0, 1.0, -6000.0); + glTexCoord2f(tcm * 3000.0, 0.0); + glVertex3f(3000.0, -1.0, -6000.0); glEnd(); glFlush(); } -static void myReshape(int w, int h) +static void +myReshape(int w, int h) { glViewport(0, 0, w, h); glMatrixMode(GL_PROJECTION); glLoadIdentity(); - gluPerspective(60.0, 1.0*(GLfloat)w/(GLfloat)h, 1.0, 30000.0); + gluPerspective(60.0, 1.0 * (GLfloat) w / (GLfloat) h, 1.0, 30000.0); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); } @@ -241,70 +253,71 @@ static void myReshape(int w, int h) static void key(unsigned char k, int x, int y) { - (void) x; - (void) y; - switch (k) { - case 'b': - BaseLevel--; - if (BaseLevel < 0) - BaseLevel = 0; - break; - case 'B': - BaseLevel++; - if (BaseLevel > 10) - BaseLevel = 10; - break; - case 'm': - MaxLevel--; - if (MaxLevel < 0) - MaxLevel = 0; - break; - case 'M': - MaxLevel++; - if (MaxLevel > 10) - MaxLevel = 10; - break; - case 'l': - LodBias -= 0.25; - break; - case 'L': - LodBias += 0.25; - break; - case 'n': - MinLod -= 0.25; - break; - case 'N': - MinLod += 0.25; - break; - case 'x': - MaxLod -= 0.25; - break; - case 'X': - MaxLod += 0.25; - break; - case 'f': - NearestFilter = !NearestFilter; - break; - case 't': - if (texCurrent == texColor) - texCurrent = texImage; - else - texCurrent = texColor; - break; - case ' ': - InitValues(); - break; - case 27: /* Escape */ - exit(0); - break; - default: - return; - } - glutPostRedisplay(); + (void) x; + (void) y; + switch (k) { + case 'b': + BaseLevel--; + if (BaseLevel < 0) + BaseLevel = 0; + break; + case 'B': + BaseLevel++; + if (BaseLevel > 10) + BaseLevel = 10; + break; + case 'm': + MaxLevel--; + if (MaxLevel < 0) + MaxLevel = 0; + break; + case 'M': + MaxLevel++; + if (MaxLevel > 10) + MaxLevel = 10; + break; + case 'l': + LodBias -= 0.25; + break; + case 'L': + LodBias += 0.25; + break; + case 'n': + MinLod -= 0.25; + break; + case 'N': + MinLod += 0.25; + break; + case 'x': + MaxLod -= 0.25; + break; + case 'X': + MaxLod += 0.25; + break; + case 'f': + NearestFilter = !NearestFilter; + break; + case 't': + if (texCurrent == texColor) + texCurrent = texImage; + else + texCurrent = texColor; + break; + case ' ': + InitValues(); + break; + case 27: /* Escape */ + exit(0); + break; + default: + return; + } + glutPostRedisplay(); } -static void usage(void) +static void +usage(void) { printf("usage:\n"); printf(" b/B decrease/increase GL_TEXTURE_BASE_LEVEL\n"); @@ -318,18 +331,19 @@ static void usage(void) } -int main(int argc, char** argv) +int +main(int argc, char **argv) { - glutInit(&argc, argv); - glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH); - glutInitWindowSize (600, 600); - glutCreateWindow (argv[0]); - glewInit(); - myinit(); - glutReshapeFunc (myReshape); - glutDisplayFunc(display); - glutKeyboardFunc(key); - usage(); - glutMainLoop(); - return 0; /* ANSI C requires main to return int. */ + glutInit(&argc, argv); + glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH); + glutInitWindowSize(600, 600); + glutCreateWindow(argv[0]); + glewInit(); + myinit(); + glutReshapeFunc(myReshape); + glutDisplayFunc(display); + glutKeyboardFunc(key); + usage(); + glutMainLoop(); + return 0; /* ANSI C requires main to return int. */ } |