void LayerRenderer::destroyLayer(Layer* layer) {
if (layer) {
ATRACE_FORMAT("Destroy %ux%u HW Layer", layer->getWidth(), layer->getHeight());
LAYER_RENDERER_LOGD("Recycling layer, %dx%d fbo = %d",
layer->getWidth(), layer->getHeight(), layer->getFbo());
if (!Caches::getInstance().layerCache.put(layer)) {
LAYER_RENDERER_LOGD(" Destroyed!");
layer->decStrong(nullptr);
} else {
LAYER_RENDERER_LOGD(" Cached!");
#if DEBUG_LAYER_RENDERER
Caches::getInstance().layerCache.dump();
#endif
layer->removeFbo();
layer->region.clear();
}
}
}
void TextureCache::generateTexture(const SkBitmap* bitmap, Texture* texture, bool regenerate) {
SkAutoLockPixels alp(*bitmap);
if (!bitmap->readyToDraw()) {
ALOGE("Cannot generate texture from bitmap");
return;
}
ATRACE_FORMAT("Upload %ux%u Texture", bitmap->width(), bitmap->height());
// We could also enable mipmapping if both bitmap dimensions are powers
// of 2 but we'd have to deal with size changes. Let's keep this simple
const bool canMipMap = Caches::getInstance().extensions().hasNPot();
// If the texture had mipmap enabled but not anymore,
// force a glTexImage2D to discard the mipmap levels
const bool resize = !regenerate || bitmap->width() != int(texture->width) ||
bitmap->height() != int(texture->height) ||
(regenerate && canMipMap && texture->mipMap && !bitmap->hasHardwareMipMap());
if (!regenerate) {
glGenTextures(1, &texture->id);
}
texture->generation = bitmap->getGenerationID();
texture->width = bitmap->width();
texture->height = bitmap->height();
Caches::getInstance().textureState().bindTexture(texture->id);
switch (bitmap->colorType()) {
case kAlpha_8_SkColorType:
uploadToTexture(resize, GL_ALPHA, bitmap->rowBytesAsPixels(), bitmap->bytesPerPixel(),
texture->width, texture->height, GL_UNSIGNED_BYTE, bitmap->getPixels());
texture->blend = true;
break;
case kRGB_565_SkColorType:
uploadToTexture(resize, GL_RGB, bitmap->rowBytesAsPixels(), bitmap->bytesPerPixel(),
texture->width, texture->height, GL_UNSIGNED_SHORT_5_6_5, bitmap->getPixels());
texture->blend = false;
break;
case kN32_SkColorType:
uploadToTexture(resize, GL_RGBA, bitmap->rowBytesAsPixels(), bitmap->bytesPerPixel(),
texture->width, texture->height, GL_UNSIGNED_BYTE, bitmap->getPixels());
// Do this after calling getPixels() to make sure Skia's deferred
// decoding happened
texture->blend = !bitmap->isOpaque();
break;
case kARGB_4444_SkColorType:
case kIndex_8_SkColorType:
uploadLoFiTexture(resize, bitmap, texture->width, texture->height);
texture->blend = !bitmap->isOpaque();
break;
default:
ALOGW("Unsupported bitmap colorType: %d", bitmap->colorType());
break;
}
if (canMipMap) {
texture->mipMap = bitmap->hasHardwareMipMap();
if (texture->mipMap) {
glGenerateMipmap(GL_TEXTURE_2D);
}
}
if (!regenerate) {
texture->setFilter(GL_NEAREST);
texture->setWrap(GL_CLAMP_TO_EDGE);
}
}
Layer* LayerRenderer::createRenderLayer(RenderState& renderState, uint32_t width, uint32_t height) {
ATRACE_FORMAT("Allocate %ux%u HW Layer", width, height);
LAYER_RENDERER_LOGD("Requesting new render layer %dx%d", width, height);
Caches& caches = Caches::getInstance();
GLuint fbo = caches.fboCache.get();
if (!fbo) {
ALOGW("Could not obtain an FBO");
return nullptr;
}
caches.textureState().activateTexture(0);
Layer* layer = caches.layerCache.get(renderState, width, height);
if (!layer) {
ALOGW("Could not obtain a layer");
return nullptr;
}
// We first obtain a layer before comparing against the max texture size
// because layers are not allocated at the exact desired size. They are
// always created slighly larger to improve recycling
const uint32_t maxTextureSize = caches.maxTextureSize;
if (layer->getWidth() > maxTextureSize || layer->getHeight() > maxTextureSize) {
ALOGW("Layer exceeds max. dimensions supported by the GPU (%dx%d, max=%dx%d)",
width, height, maxTextureSize, maxTextureSize);
// Creating a new layer always increment its refcount by 1, this allows
// us to destroy the layer object if one was created for us
layer->decStrong(nullptr);
return nullptr;
}
layer->setFbo(fbo);
layer->layer.set(0.0f, 0.0f, width, height);
layer->texCoords.set(0.0f, height / float(layer->getHeight()),
width / float(layer->getWidth()), 0.0f);
layer->setAlpha(255, SkXfermode::kSrcOver_Mode);
layer->setColorFilter(nullptr);
layer->setDirty(true);
layer->region.clear();
GLuint previousFbo = renderState.getFramebuffer();
renderState.bindFramebuffer(layer->getFbo());
layer->bindTexture();
// Initialize the texture if needed
if (layer->isEmpty()) {
layer->setEmpty(false);
layer->allocateTexture();
// This should only happen if we run out of memory
if (CC_UNLIKELY(GLUtils::dumpGLErrors())) {
LOG_ALWAYS_FATAL("Could not allocate texture for layer (fbo=%d %dx%d)",
fbo, width, height);
renderState.bindFramebuffer(previousFbo);
layer->decStrong(nullptr);
return nullptr;
}
}
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
layer->getTextureId(), 0);
renderState.bindFramebuffer(previousFbo);
return layer;
}
void RenderNode::setViewProperties(OpenGLRenderer& renderer, T& handler) {
#if DEBUG_DISPLAY_LIST
properties().debugOutputProperties(handler.level() + 1);
#endif
if (properties().getLeft() != 0 || properties().getTop() != 0) {
renderer.translate(properties().getLeft(), properties().getTop());
}
if (properties().getStaticMatrix()) {
renderer.concatMatrix(*properties().getStaticMatrix());
} else if (properties().getAnimationMatrix()) {
renderer.concatMatrix(*properties().getAnimationMatrix());
}
if (properties().hasTransformMatrix()) {
if (properties().isTransformTranslateOnly()) {
renderer.translate(properties().getTranslationX(), properties().getTranslationY());
} else {
renderer.concatMatrix(*properties().getTransformMatrix());
}
}
const bool isLayer = properties().effectiveLayerType() != LayerType::None;
int clipFlags = properties().getClippingFlags();
if (properties().getAlpha() < 1) {
if (isLayer) {
clipFlags &= ~CLIP_TO_BOUNDS; // bounds clipping done by layer
}
if (CC_LIKELY(isLayer || !properties().getHasOverlappingRendering())) {
// simply scale rendering content's alpha
renderer.scaleAlpha(properties().getAlpha());
} else {
// savelayer needed to create an offscreen buffer
Rect layerBounds(0, 0, getWidth(), getHeight());
if (clipFlags) {
properties().getClippingRectForFlags(clipFlags, &layerBounds);
clipFlags = 0; // all clipping done by savelayer
}
SaveLayerOp* op = new (handler.allocator()) SaveLayerOp(
layerBounds.left, layerBounds.top,
layerBounds.right, layerBounds.bottom,
(int) (properties().getAlpha() * 255),
SaveFlags::HasAlphaLayer | SaveFlags::ClipToLayer);
handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds());
}
if (CC_UNLIKELY(ATRACE_ENABLED() && properties().promotedToLayer())) {
// pretend alpha always causes savelayer to warn about
// performance problem affecting old versions
ATRACE_FORMAT("%s alpha caused saveLayer %dx%d", getName(),
static_cast<int>(getWidth()),
static_cast<int>(getHeight()));
}
}
if (clipFlags) {
Rect clipRect;
properties().getClippingRectForFlags(clipFlags, &clipRect);
ClipRectOp* op = new (handler.allocator()) ClipRectOp(
clipRect.left, clipRect.top, clipRect.right, clipRect.bottom,
SkRegion::kIntersect_Op);
handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds());
}
// TODO: support nesting round rect clips
if (mProperties.getRevealClip().willClip()) {
Rect bounds;
mProperties.getRevealClip().getBounds(&bounds);
renderer.setClippingRoundRect(handler.allocator(), bounds, mProperties.getRevealClip().getRadius());
} else if (mProperties.getOutline().willClip()) {
renderer.setClippingOutline(handler.allocator(), &(mProperties.getOutline()));
}
}
