Split buffer in three, one per color (as OpenGL guarantees that one can at least have 8 SSBOs), to allow three times larger images. Also make it possible to ignore maximum buffer size reported by the driver.

The maximum buffer size limitation is rather strict on radeonsi, so I decided to split the buffer in three, effectively increasing the maximum image size by a factor of three.
While doing so I realized that at least on radeonsi the reported maximum buffer size seems to be off. For this reason I added a new command line switch, that allows to ignore the maximum buffer size check.
For those curious: radeonsi reports a maximum buffer size of 128 MB, but I had no problems when using three buffers of 1098 MB each.

1 files changed, 2 insertions, 0 deletions

diff --git a/BuddhaTest/include/Helpers.h b/BuddhaTest/include/Helpers.h
index 76a9a57..6358066 100644
--- a/BuddhaTest/include/Helpers.h
+++ b/BuddhaTest/include/Helpers.h
@@ -50,6 +50,8 @@ namespace Helpers
         double pngGamma = 1.0;

         double pngColorScale = 2.0;

 

+        unsigned int ignoreMaxBufferSize = 0;

+

         bool CheckValidity();

         bool ParseCommandLine(int argc, char * argv[]);

     };