Add new property to debug non-rectangular clip operations
This change adds a new property called "debug.hwui.show_stencil_clip"
that accepts the following values:
- "highlight", colorizes in green any drawing command that's tested
against a non-rectangular clip region
- "region", shows the non-rectangular clip region in blue every time
it is used
- "hide", default value, nothing is shown
Change-Id: I83c8602310edc4aaeb8b905371cdd185b17d32b5
diff --git a/libs/hwui/ProgramCache.cpp b/libs/hwui/ProgramCache.cpp
index 74d598d..0f014cb 100644
--- a/libs/hwui/ProgramCache.cpp
+++ b/libs/hwui/ProgramCache.cpp
@@ -351,6 +351,8 @@
// PorterDuff
" fragColor = blendColors(colorBlend, fragColor);\n"
};
+const char* gFS_Main_DebugHighlight =
+ " gl_FragColor.rgb = vec3(0.0, gl_FragColor.a, 0.0);\n";
const char* gFS_Footer =
"}\n\n";
@@ -604,7 +606,8 @@
// Optimization for common cases
if (!description.isAA && !blendFramebuffer && !description.hasColors &&
- description.colorOp == ProgramDescription::kColorNone && !description.isPoint) {
+ description.colorOp == ProgramDescription::kColorNone &&
+ !description.isPoint && !description.hasDebugHighlight) {
bool fast = false;
const bool noShader = !description.hasGradient && !description.hasBitmap;
@@ -752,6 +755,9 @@
if (description.hasColors) {
shader.append(gFS_Main_FragColor_HasColors);
}
+ if (description.hasDebugHighlight) {
+ shader.append(gFS_Main_DebugHighlight);
+ }
}
// End the shader
shader.append(gFS_Footer);