Allow 9patches to shrink (41d35aef) · Commits · e / os / android_frameworks_base

libs/hwui/Patch.cpp

+15 −9

Original line number	Diff line number	Diff line
		@@ -118,7 +118,10 @@ void Patch::updateVertices(const float bitmapWidth, const float bitmapHeight,
		const uint32_t yStretchCount = (mYCount + 1) >> 1;

		float stretchX = 0.0f;
		float stretchY = 0.0;
		float stretchY = 0.0f;

		float rescaleX = 1.0f;
		float rescaleY = 1.0f;

		const float meshWidth = right - left;

		@@ -129,8 +132,9 @@ void Patch::updateVertices(const float bitmapWidth, const float bitmapHeight,
		}
		const float xStretchTex = stretchSize;
		const float fixed = bitmapWidth - stretchSize;
		const float xStretch = right - left - fixed;
		const float xStretch = fmaxf(right - left - fixed, 0.0f);
		stretchX = xStretch / xStretchTex;
		rescaleX = fminf(fmaxf(right - left, 0.0f) / fixed, 1.0f);
		}

		if (yStretchCount > 0) {
		@@ -140,8 +144,9 @@ void Patch::updateVertices(const float bitmapWidth, const float bitmapHeight,
		}
		const float yStretchTex = stretchSize;
		const float fixed = bitmapHeight - stretchSize;
		const float yStretch = bottom - top - fixed;
		const float yStretch = fmaxf(bottom - top - fixed, 0.0f);
		stretchY = yStretch / yStretchTex;
		rescaleY = fminf(fmaxf(bottom - top, 0.0f) / fixed, 1.0f);
		}

		TextureVertex* vertex = mVertices;
		@@ -160,7 +165,7 @@ void Patch::updateVertices(const float bitmapWidth, const float bitmapHeight,
		if (i & 1) {
		y2 = y1 + floorf(segment * stretchY + 0.5f);
		} else {
		y2 = y1 + segment;
		y2 = y1 + segment * rescaleY;
		}

		float vOffset = y1 == y2 ? 0.0f : 0.5 - (0.5 * segment / (y2 - y1));
		@@ -172,7 +177,7 @@ void Patch::updateVertices(const float bitmapWidth, const float bitmapHeight,
		y1 += i * EXPLODE_GAP;
		y2 += i * EXPLODE_GAP;
		#endif
		generateRow(vertex, y1, y2, v1, v2, stretchX, right - left,
		generateRow(vertex, y1, y2, v1, v2, stretchX, rescaleX, right - left,
		bitmapWidth, quadCount);
		#if DEBUG_EXPLODE_PATCHES
		y2 -= i * EXPLODE_GAP;
		@@ -191,7 +196,8 @@ void Patch::updateVertices(const float bitmapWidth, const float bitmapHeight,
		y1 += mYCount * EXPLODE_GAP;
		y2 += mYCount * EXPLODE_GAP;
		#endif
		generateRow(vertex, y1, y2, v1, 1.0f, stretchX, right - left, bitmapWidth, quadCount);
		generateRow(vertex, y1, y2, v1, 1.0f, stretchX, rescaleX, right - left,
		bitmapWidth, quadCount);
		}

		if (verticesCount > 0) {
		@@ -212,7 +218,7 @@ void Patch::updateVertices(const float bitmapWidth, const float bitmapHeight,
		}

		void Patch::generateRow(TextureVertex*& vertex, float y1, float y2, float v1, float v2,
		float stretchX, float width, float bitmapWidth, uint32_t& quadCount) {
		float stretchX, float rescaleX, float width, float bitmapWidth, uint32_t& quadCount) {
		float previousStepX = 0.0f;

		float x1 = 0.0f;
		@@ -227,7 +233,7 @@ void Patch::generateRow(TextureVertex*& vertex, float y1, float y2, float v1, fl
		if (i & 1) {
		x2 = x1 + floorf(segment * stretchX + 0.5f);
		} else {
		x2 = x1 + segment;
		x2 = x1 + segment * rescaleX;
		}

		float uOffset = x1 == x2 ? 0.0f : 0.5 - (0.5 * segment / (x2 - x1));
		@@ -272,7 +278,7 @@ void Patch::generateQuad(TextureVertex*& vertex, float x1, float y1, float x2, f
		if (y2 < 0.0f) y2 = 0.0f;

		// Skip degenerate and transparent (empty) quads
		if ((mColorKey >> oldQuadCount) & 0x1) {
		if (((mColorKey >> oldQuadCount) & 0x1) \|\| x1 >= x2 \|\| y1 >= y2) {
		#if DEBUG_PATCHES_EMPTY_VERTICES
		PATCH_LOGD(" quad %d (empty)", oldQuadCount);
		PATCH_LOGD(" left, top = %.2f, %.2f\t\tu1, v1 = %.4f, %.4f", x1, y1, u1, v1);

libs/hwui/Patch.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -75,8 +75,8 @@ private:
		void copy(const int32_t* yDivs);

		void generateRow(TextureVertex*& vertex, float y1, float y2,
		float v1, float v2, float stretchX, float width, float bitmapWidth,
		uint32_t& quadCount);
		float v1, float v2, float stretchX, float rescaleX,
		float width, float bitmapWidth, uint32_t& quadCount);
		void generateQuad(TextureVertex*& vertex,
		float x1, float y1, float x2, float y2,
		float u1, float v1, float u2, float v2,