FGFS-4.1/simgear
3
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Check for and scale down oversize composite orthophotos

Browse Source
This commit is contained in:
Nathaniel MacArthur-Warner
2020-12-23 22:38:03 -08:00
parent 6ed37c880a
commit a56d1718de
2 changed files with 27 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
simgear/scene/util/OrthophotoManager.cxx
View File

@@ -18,6 +18,7 @@
// Boston, MA 02110-1301, USA.
#include "OrthophotoManager.hxx"
#include "SGSceneFeatures.hxx"
#include <simgear/debug/debug_types.h>
namespace simgear {
@@ -303,6 +304,30 @@ namespace simgear {
composite_image->copySubImage(s_offset, t_offset, 0, sub_image);
}
int max_texture_size = SGSceneFeatures::instance()->getMaxTextureSize();
int new_width = total_width;
int new_height = total_height;
if (new_width > max_texture_size) {
int factor = new_width / max_texture_size;
new_width /= factor;
new_height /= factor;
}
if (new_height > max_texture_size) {
int factor = new_height / max_texture_size;
new_width /= factor;
new_height /= factor;
}
if (total_width != new_width || total_height != new_height) {
SG_LOG(SG_OSG, SG_INFO, "Composite orthophoto exceeds the maximum texture size of your GPU. Automatic scaling will be performed.");
ImageRef scaled_image;
bool success = ImageUtils::resizeImage(composite_image, new_width, new_height, scaled_image);
if (success) {
composite_image = scaled_image;
} else {
SG_LOG(SG_OSG, SG_ALERT, "Failed to scale composite orthophoto.");
}
}
_texture = textureFromImage(composite_image);
}

3
simgear/scene/util/OrthophotoManager.hxx
View File

@@ -36,6 +36,7 @@
#include <simgear/math/SGLimits.hxx>
#include "SGSceneFeatures.hxx"
#include "OsgSingleton.hxx"
#include "SGImageUtils.hxx"
namespace simgear {
@@ -108,4 +109,4 @@ namespace simgear {
};
}
#endif
#endif