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progs/tests: re-indent mipmap_limits.c

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This commit is contained in:
Brian Paul 2009-09-25 16:37:15 -06:00
parent 9871521b30
commit c8de476189
1 changed files with 119 additions and 105 deletions
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224
progs/tests/mipmap_limits.c
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@ -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. */
}