Correctly index transparent quads when generating 9patch meshes. (bd41a110) · Commits · e / os / android_frameworks_base

libs/hwui/Patch.cpp

+12 −1

Original line number	Diff line number	Diff line
		@@ -42,6 +42,9 @@ Patch::Patch(const uint32_t xCount, const uint32_t yCount, const int8_t emptyQua
		mXDivs = new int32_t[mXCount];
		mYDivs = new int32_t[mYCount];

		PATCH_LOGD(" patch: xCount = %d, yCount = %d, emptyQuads = %d, vertices = %d",
		xCount, yCount, emptyQuads, verticesCount);

		glGenBuffers(1, &meshBuffer);
		}

		@@ -208,7 +211,15 @@ void Patch::generateRow(TextureVertex*& vertex, float y1, float y2, float v1, fl

		void Patch::generateQuad(TextureVertex*& vertex, float x1, float y1, float x2, float y2,
		float u1, float v1, float u2, float v2, uint32_t& quadCount) {
		if (((mColorKey >> quadCount++) & 0x1) == 1) {
		uint32_t oldQuadCount = quadCount;

		// Degenerate quads are an artifact of our implementation and should not
		// be taken into account when checking for transparent quads
		if (x2 - x1 > 0.999f && y2 - y1 > 0.999f) {
		quadCount++;
		}

		if (((mColorKey >> oldQuadCount) & 0x1) == 1) {
		return;
		}