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test/gtkgears.c: Fix Builds on Systems Without M_PI

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Use G_PI in place of M_PI to fix the build on compilers that do not have
M_PI defined.

https://bugzilla.gnome.org/show_bug.cgi?id=740795
This commit is contained in:
Chun-wei Fan 2014-12-02 15:57:17 +08:00
parent 7717b0d556
commit fbe4f94519
1 changed files with 8 additions and 8 deletions
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16
tests/gtkgears.c
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@ -126,7 +126,7 @@ gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
/* draw front face */
glBegin(GL_QUAD_STRIP);
for (i = 0; i <= teeth; i++) {
angle = i * 2.0 * M_PI / teeth;
angle = i * 2.0 * G_PI / teeth;
glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
if (i < teeth) {
@ -139,9 +139,9 @@ gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
/* draw front sides of teeth */
glBegin(GL_QUADS);
da = 2.0 * M_PI / teeth / 4.0;
da = 2.0 * G_PI / teeth / 4.0;
for (i = 0; i < teeth; i++) {
angle = i * 2.0 * M_PI / teeth;
angle = i * 2.0 * G_PI / teeth;
glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
@ -157,7 +157,7 @@ gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
/* draw back face */
glBegin(GL_QUAD_STRIP);
for (i = 0; i <= teeth; i++) {
angle = i * 2.0 * M_PI / teeth;
angle = i * 2.0 * G_PI / teeth;
glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
if (i < teeth) {
@ -170,9 +170,9 @@ gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
/* draw back sides of teeth */
glBegin(GL_QUADS);
da = 2.0 * M_PI / teeth / 4.0;
da = 2.0 * G_PI / teeth / 4.0;
for (i = 0; i < teeth; i++) {
angle = i * 2.0 * M_PI / teeth;
angle = i * 2.0 * G_PI / teeth;
glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
-width * 0.5);
@ -186,7 +186,7 @@ gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
/* draw outward faces of teeth */
glBegin(GL_QUAD_STRIP);
for (i = 0; i < teeth; i++) {
angle = i * 2.0 * M_PI / teeth;
angle = i * 2.0 * G_PI / teeth;
glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
@ -223,7 +223,7 @@ gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
/* draw inside radius cylinder */
glBegin(GL_QUAD_STRIP);
for (i = 0; i <= teeth; i++) {
angle = i * 2.0 * M_PI / teeth;
angle = i * 2.0 * G_PI / teeth;
glNormal3f(-cos(angle), -sin(angle), 0.0);
glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);