Add shader program selection shortcut

Add a key manipulation that makes black text/paths use the standard
simple bitmap/patch shader, since they are the same. Previously we'd
create a separate shader for each because the keys differed, even
though the shaders were functionally equivalent.

Also fixes some issues around setting DEBUG_PROGRAM

Change-Id: I0c77c684d58da03501ee9ab8239c7d4a70fd6b5c

1 files changed, 6 insertions, 0 deletions

diff --git a/libs/hwui/ProgramCache.cpp b/libs/hwui/ProgramCache.cpp
index 0f014cbfa96a..f78fb2d65415 100644
--- a/libs/hwui/ProgramCache.cpp
+++ b/libs/hwui/ProgramCache.cpp
@@ -433,6 +433,12 @@ void ProgramCache::clear() {
 
 Program* ProgramCache::get(const ProgramDescription& description) {
     programid key = description.key();
+    if (key == (PROGRAM_KEY_TEXTURE | PROGRAM_KEY_A8_TEXTURE)) {
+        // program for A8, unmodulated, texture w/o shader (black text/path textures) is equivalent
+        // to standard texture program (bitmaps, patches). Consider them equivalent.
+        key = PROGRAM_KEY_TEXTURE;
+    }
+
     ssize_t index = mCache.indexOfKey(key);
     Program* program = NULL;
     if (index < 0) {