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-rw-r--r--progs/tests/mipmap_limits.c237
1 files changed, 127 insertions, 110 deletions
diff --git a/progs/tests/mipmap_limits.c b/progs/tests/mipmap_limits.c
index 5b899cd155..9418e90981 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);
@@ -208,103 +215,44 @@ 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();
}
-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();
-}
-
-static void usage(void)
+static void
+usage(void)
{
printf("usage:\n");
printf(" b/B decrease/increase GL_TEXTURE_BASE_LEVEL\n");
@@ -317,19 +265,88 @@ static void usage(void)
printf(" SPACE reset values\n");
}
+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();
+ /* fall-through */
+ case 'u':
+ usage();
+ break;
+ case 27: /* Escape */
+ exit(0);
+ break;
+ default:
+ return;
+ }
+ glutPostRedisplay();
+}
+
-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. */
}
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