Add implementation for drawBitmap(Bitmap, Rect, Rect, Paint) (8ba548f8) · Commits · e / os / android_frameworks_base

core/java/android/view/GLES20Canvas.java

+0 −1

Original line number	Diff line number	Diff line
		@@ -403,7 +403,6 @@ class GLES20Canvas extends Canvas {
		@Override
		public void drawBitmap(int[] colors, int offset, int stride, float x, float y,
		int width, int height, boolean hasAlpha, Paint paint) {

		// TODO: Implement
		}

core/jni/android_view_GLES20Canvas.cpp

+7 −3

Original line number	Diff line number	Diff line
		@@ -196,9 +196,13 @@ static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject canvas
		float srcLeft, float srcTop, float srcRight, float srcBottom,
		float dstLeft, float dstTop, float dstRight, float dstBottom,
		SkMatrix* matrix, SkPaint* paint,
		jint bitmapDenstiy, jint canvasDensity, jint screenDensity) {
		// TODO: Implement!
		LOGE("Not implemented: drawBitmap(IIFFFFFFFFIIIII)V");
		jint bitmapDensity, jint canvasDensity, jint screenDensity) {
		if (canvasDensity == bitmapDensity \|\| canvasDensity == 0 \|\| bitmapDensity == 0) {
		renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom,
		dstLeft, dstTop, dstRight, dstBottom, matrix, paint);
		} else {

		}
		}

		static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject canvas,

libs/hwui/OpenGLRenderer.cpp

+57 −24

Original line number	Diff line number	Diff line
		@@ -205,12 +205,12 @@ void OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) {
		const float u2 = texCoords.right / float(mWidth);
		const float v2 = (mHeight - texCoords.bottom) / float(mHeight);

		resetDrawTextureTexCoords(u1, v1, u2, v1);
		resetDrawTextureTexCoords(u1, v1, u2, v2);

		drawTextureRect(layer.left, layer.top, layer.right, layer.bottom,
		current->texture, current->alpha, current->mode, true, true);

		resetDrawTextureTexCoords(0.0f, 1.0f, 1.0f, 0.0f);
		resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f);

		glDeleteFramebuffers(1, &current->fbo);
		glDeleteTextures(1, &current->texture);
		@@ -263,9 +263,11 @@ bool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top,
		// The FBO will not be scaled, so we can use lower quality filtering
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);

		// TODO VERY IMPORTANT: Fix TextView to not call saveLayer() all the time
		// TODO *** IMPORTANT ***
		// Creating a texture-backed FBO works only if the texture is the same size
		// as the original rendering buffer (in this case, mWidth and mHeight.)
		@@ -381,30 +383,40 @@ bool OpenGLRenderer::clipRect(float left, float top, float right, float bottom)
		void OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint) {
		Texture* texture = mTextureCache.get(bitmap);

		SkXfermode::Mode mode;
		int alpha;
		SkXfermode::Mode mode;
		getAlphaAndMode(paint, &alpha, &mode);

		if (paint) {
		const bool isMode = SkXfermode::IsMode(paint->getXfermode(), &mode);
		if (!isMode) {
		// Assume SRC_OVER
		mode = SkXfermode::kSrcOver_Mode;
		drawTextureRect(left, top, left + texture->width, top + texture->height, texture->id,
		alpha / 255.0f, mode, texture->blend, true);
		}

		// Skia draws using the color's alpha channel if < 255
		// Otherwise, it uses the paint's alpha
		int color = paint->getColor();
		alpha = (color >> 24) & 0xFF;
		if (alpha == 255) {
		alpha = paint->getAlpha();
		}
		} else {
		mode = SkXfermode::kSrcOver_Mode;
		alpha = 255;
		}
		void OpenGLRenderer::drawBitmap(SkBitmap* bitmap,
		float srcLeft, float srcTop, float srcRight, float srcBottom,
		float dstLeft, float dstTop, float dstRight, float dstBottom,
		const SkMatrix* matrix, const SkPaint* paint) {
		Texture* texture = mTextureCache.get(bitmap);

		drawTextureRect(left, top, left + texture->width, top + texture->height, texture->id,
		int alpha;
		SkXfermode::Mode mode;
		getAlphaAndMode(paint, &alpha, &mode);

		const float width = texture->width;
		const float height = texture->height;

		const float u1 = srcLeft / width;
		const float v1 = srcTop / height;
		const float u2 = srcRight / width;
		const float v2 = srcBottom / height;

		resetDrawTextureTexCoords(u1, v1, u2, v2);

		// TODO: implement Matrix

		drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture->id,
		alpha / 255.0f, mode, texture->blend, true);

		resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f);
		}

		void OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) {
		@@ -515,13 +527,34 @@ void OpenGLRenderer::drawTextureRect(float left, float top, float right, float b

		void OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) {
		mDrawTextureVertices[0].texture[0] = u1;
		mDrawTextureVertices[0].texture[1] = v2;
		mDrawTextureVertices[0].texture[1] = v1;
		mDrawTextureVertices[1].texture[0] = u2;
		mDrawTextureVertices[1].texture[1] = v2;
		mDrawTextureVertices[1].texture[1] = v1;
		mDrawTextureVertices[2].texture[0] = u1;
		mDrawTextureVertices[2].texture[1] = v1;
		mDrawTextureVertices[2].texture[1] = v2;
		mDrawTextureVertices[3].texture[0] = u2;
		mDrawTextureVertices[3].texture[1] = v1;
		mDrawTextureVertices[3].texture[1] = v2;
		}

		void OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) {
		if (paint) {
		const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode);
		if (!isMode) {
		// Assume SRC_OVER
		*mode = SkXfermode::kSrcOver_Mode;
		}

		// Skia draws using the color's alpha channel if < 255
		// Otherwise, it uses the paint's alpha
		int color = paint->getColor();
		*alpha = (color >> 24) & 0xFF;
		if (*alpha == 255) {
		*alpha = paint->getAlpha();
		}
		} else {
		*mode = SkXfermode::kSrcOver_Mode;
		*alpha = 255;
		}
		}

		}; // namespace uirenderer

libs/hwui/OpenGLRenderer.h

+14 −1

Original line number	Diff line number	Diff line
		@@ -103,6 +103,9 @@ public:
		bool clipRect(float left, float top, float right, float bottom);

		void drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint);
		void drawBitmap(SkBitmap* bitmap, float srcLeft, float srcTop, float srcRight, float srcBottom,
		float dstLeft, float dstTop, float dstRight, float dstBottom,
		const SkMatrix* matrix, const SkPaint* paint);
		void drawColor(int color, SkXfermode::Mode mode);
		void drawRect(float left, float top, float right, float bottom, const SkPaint* paint);

		@@ -193,7 +196,7 @@ private:
		* Resets the texture coordinates stored in mDrawTextureVertices. Setting the values
		* back to default is achieved by calling:
		*
		* resetDrawTextureTexCoords(0.0f, 1.0f, 1.0f, 0.0f);
		* resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f);
		*
		* @param u1 The left coordinate of the texture
		* @param v1 The bottom coordinate of the texture
		@@ -202,6 +205,16 @@ private:
		*/
		void resetDrawTextureTexCoords(float u1, float v1, float u2, float v2);

		/**
		* Gets the alpha and xfermode out of a paint object. If the paint is null
		* alpha will be 255 and the xfermode will be SRC_OVER.
		*
		* @param paint The paint to extract values from
		* @param alpha Where to store the resulting alpha
		* @param mode Where to store the resulting xfermode
		*/
		inline void getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode);

		// Dimensions of the drawing surface
		int mWidth, mHeight;

libs/hwui/TextureCache.cpp

+1 −0

Original line number	Diff line number	Diff line
		@@ -92,6 +92,7 @@ void TextureCache::generateTexture(SkBitmap* bitmap, Texture* texture, bool rege

		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);