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better fix for previously named problem

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rdb 2011-01-26 15:02:32 +00:00
parent 1feec43b43
commit 10511a4246
1 changed files with 40 additions and 29 deletions
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69
panda/src/egldisplay/eglGraphicsStateGuardian.cxx
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@ -166,46 +166,54 @@ choose_pixel_format(const FrameBufferProperties &properties,
EGL_NONE
};
int num_configs = 0;
EGLConfig configs[256];
if (!eglChooseConfig(_egl_display, attrib_list, configs, 256, &num_configs) || num_configs <= 0) {
// First get the number of matching configurations, so we know how much memory to allocate.
int num_configs = 0, returned_configs;
if (!eglChooseConfig(_egl_display, attrib_list, NULL, num_configs, &returned_configs) || returned_configs <= 0) {
egldisplay_cat.error() << "eglChooseConfig failed: "
<< get_egl_error_string(eglGetError()) << "\n";
return;
}
num_configs = returned_configs;
EGLConfig *configs = new EGLConfig[num_configs];
if (!eglChooseConfig(_egl_display, attrib_list, configs, num_configs, &returned_configs) || returned_configs <= 0) {
egldisplay_cat.error() << "eglChooseConfig failed: "
<< get_egl_error_string(eglGetError()) << "\n";
delete[] configs;
return;
}
int best_quality = 0;
int best_result = 0;
FrameBufferProperties best_props;
if (configs != 0) {
for (int i = 0; i < num_configs; ++i) {
FrameBufferProperties fbprops;
bool pbuffer_supported, pixmap_supported, slow;
get_properties(fbprops, pbuffer_supported, pixmap_supported,
slow, configs[i]);
// We're not protecting this code by an is_debug() check, because if we do,
// some weird compiler bug appears and somehow makes the quality always 0.
const char *pbuffertext = pbuffer_supported ? " (pbuffer)" : "";
const char *pixmaptext = pixmap_supported ? " (pixmap)" : "";
const char *slowtext = slow ? " (slow)" : "";
egldisplay_cat.debug()
<< i << ": " << fbprops << pbuffertext << pixmaptext << slowtext << "\n";
int quality = fbprops.get_quality(properties);
if ((quality > 0)&&(slow)) quality -= 10000000;
for (int i = 0; i < num_configs; ++i) {
FrameBufferProperties fbprops;
bool pbuffer_supported, pixmap_supported, slow;
get_properties(fbprops, pbuffer_supported, pixmap_supported,
slow, configs[i]);
// We're not protecting this code by an is_debug() check, because if we do,
// some weird compiler bug appears and somehow makes the quality always 0.
const char *pbuffertext = pbuffer_supported ? " (pbuffer)" : "";
const char *pixmaptext = pixmap_supported ? " (pixmap)" : "";
const char *slowtext = slow ? " (slow)" : "";
egldisplay_cat.debug()
<< i << ": " << fbprops << pbuffertext << pixmaptext << slowtext << "\n";
int quality = fbprops.get_quality(properties);
if ((quality > 0)&&(slow)) quality -= 10000000;
if (need_pbuffer && !pbuffer_supported) {
continue;
}
if (need_pixmap && !pixmap_supported) {
continue;
}
if (need_pbuffer && !pbuffer_supported) {
continue;
}
if (need_pixmap && !pixmap_supported) {
continue;
}
if (quality > best_quality) {
best_quality = quality;
best_result = i;
best_props = fbprops;
}
if (quality > best_quality) {
best_quality = quality;
best_result = i;
best_props = fbprops;
}
}
int depth = DefaultDepth(_display, _screen);
@ -226,6 +234,7 @@ choose_pixel_format(const FrameBufferProperties &properties,
if (_context && err == EGL_SUCCESS) {
if (_visual) {
_fbprops = best_props;
delete[] configs;
return;
}
}
@ -241,6 +250,8 @@ choose_pixel_format(const FrameBufferProperties &properties,
egldisplay_cat.error() <<
"Could not find a usable pixel format.\n";
delete[] configs;
}
////////////////////////////////////////////////////////////////////