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to take into account 16 bits colorspaces, we only use the 5 highest bits of the red channel

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this fixes bug #1310


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23793 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Jérôme Duval
2008-01-30 19:07:44 +00:00
parent 7a35b205fe
commit cee437c504
1 changed files with 5 additions and 4 deletions
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src/apps/glteapot/ObjectView.cpp
+5 -4
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@@ -98,8 +98,8 @@ simonThread(void* cookie)
{
ObjectView* ov = (ObjectView*)cookie;
int noPause = 0;
while (acquire_sem_etc(ov->quittingSem,1,B_TIMEOUT,0) == B_NO_ERROR) {
int noPause = 0;
while (acquire_sem_etc(ov->quittingSem, 1, B_TIMEOUT, 0) == B_NO_ERROR) {
if (ov->SpinIt()) {
ov->DrawFrame(noPause);
release_sem(ov->quittingSem);
@@ -373,7 +373,8 @@ ObjectView::ObjectAtPoint(BPoint p)
float f[3];
f[1] = f[2] = 0;
for (int i = 0; i < fObjects.CountItems(); i++) {
f[0] = (255 - i) / 255.0;
// to take into account 16 bits colorspaces, only use the 5 highest bits of the red channel
f[0] = (255 - (i << 3)) / 255.0;
((GLObject*)fObjects.ItemAt(i))->Draw(true, f);
}
glReadBuffer(GL_BACK);
@@ -381,7 +382,7 @@ ObjectView::ObjectAtPoint(BPoint p)
glReadPixels((GLint)p.x, (GLint)(Bounds().bottom - p.y), 1, 1,
GL_RGB, GL_UNSIGNED_BYTE, pixel);
int objNum = pixel[0];
objNum = 255 - objNum;
objNum = (255 - objNum) >> 3;
EnforceState();
UnlockGL();