Add support for advanced blend modes with the framebuffer.
This adds the ability to blend with the framebuffer using Darken,
Lighten, Add, Multiply, Overlay and Screen.
Change-Id: Iae01a53797d4ad39c373cba6ff2a42293129da1a
diff --git a/libs/hwui/Extensions.h b/libs/hwui/Extensions.h
index 7778290..d50d36e 100644
--- a/libs/hwui/Extensions.h
+++ b/libs/hwui/Extensions.h
@@ -26,17 +26,33 @@
namespace android {
namespace uirenderer {
+///////////////////////////////////////////////////////////////////////////////
+// Defines
+///////////////////////////////////////////////////////////////////////////////
+
+// Debug
+#define DEBUG_EXTENSIONS 0
+
+// Debug
+#if DEBUG_EXTENSIONS
+ #define EXT_LOGD(...) LOGD(__VA_ARGS__)
+#else
+ #define EXT_LOGD(...)
+#endif
+
class Extensions {
public:
Extensions() {
const char* buffer = (const char*) glGetString(GL_EXTENSIONS);
const char* current = buffer;
const char* head = current;
+ EXT_LOGD("Available GL extensions:");
do {
head = strchr(current, ' ');
String8 s(current, head ? head - current : strlen(current));
if (s.length()) {
mExtensionList.add(s);
+ EXT_LOGD(" %s", s.string());
}
current = head + 1;
} while (head);
@@ -44,6 +60,7 @@
mHasNPot = hasExtension("GL_OES_texture_npot");
mHasDrawPath = hasExtension("GL_NV_draw_path");
mHasCoverageSample = hasExtension("GL_NV_coverage_sample");
+ mHasFramebufferFetch = hasExtension("GL_NV_shader_framebuffer_fetch");
mExtensions = buffer;
}
@@ -51,6 +68,7 @@
inline bool hasNPot() const { return mHasNPot; }
inline bool hasDrawPath() const { return mHasDrawPath; }
inline bool hasCoverageSample() const { return mHasCoverageSample; }
+ inline bool hasFramebufferFetch() const { return mHasFramebufferFetch; }
bool hasExtension(const char* extension) const {
const String8 s(extension);
@@ -69,6 +87,7 @@
bool mHasNPot;
bool mHasDrawPath;
bool mHasCoverageSample;
+ bool mHasFramebufferFetch;
}; // class Extensions
}; // namespace uirenderer