auto import from //depot/cupcake/@135843
diff --git a/libs/surfaceflinger/LayerBase.cpp b/libs/surfaceflinger/LayerBase.cpp
new file mode 100644
index 0000000..0cf53f7
--- /dev/null
+++ b/libs/surfaceflinger/LayerBase.cpp
@@ -0,0 +1,740 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "SurfaceFlinger"
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/Log.h>
+
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+
+#include <hardware/hardware.h>
+
+#include "clz.h"
+#include "LayerBase.h"
+#include "LayerBlur.h"
+#include "SurfaceFlinger.h"
+#include "DisplayHardware/DisplayHardware.h"
+
+
+// We don't honor the premultiplied alpha flags, which means that
+// premultiplied surface may be composed using a non-premultiplied
+// equation. We do this because it may be a lot faster on some hardware
+// The correct value is HONOR_PREMULTIPLIED_ALPHA = 1
+#define HONOR_PREMULTIPLIED_ALPHA 0
+
+namespace android {
+
+// ---------------------------------------------------------------------------
+
+const uint32_t LayerBase::typeInfo = 1;
+const char* const LayerBase::typeID = "LayerBase";
+
+const uint32_t LayerBaseClient::typeInfo = LayerBase::typeInfo | 2;
+const char* const LayerBaseClient::typeID = "LayerBaseClient";
+
+// ---------------------------------------------------------------------------
+
+Vector<GLuint> LayerBase::deletedTextures;
+
+int32_t LayerBase::sIdentity = 0;
+
+LayerBase::LayerBase(SurfaceFlinger* flinger, DisplayID display)
+ : dpy(display), contentDirty(false),
+ mFlinger(flinger),
+ mTransformed(false),
+ mOrientation(0),
+ mCanUseCopyBit(false),
+ mTransactionFlags(0),
+ mPremultipliedAlpha(true),
+ mIdentity(uint32_t(android_atomic_inc(&sIdentity))),
+ mInvalidate(0)
+{
+ const DisplayHardware& hw(flinger->graphicPlane(0).displayHardware());
+ mFlags = hw.getFlags();
+}
+
+LayerBase::~LayerBase()
+{
+}
+
+const GraphicPlane& LayerBase::graphicPlane(int dpy) const
+{
+ return mFlinger->graphicPlane(dpy);
+}
+
+GraphicPlane& LayerBase::graphicPlane(int dpy)
+{
+ return mFlinger->graphicPlane(dpy);
+}
+
+void LayerBase::initStates(uint32_t w, uint32_t h, uint32_t flags)
+{
+ uint32_t layerFlags = 0;
+ if (flags & ISurfaceComposer::eHidden)
+ layerFlags = ISurfaceComposer::eLayerHidden;
+
+ if (flags & ISurfaceComposer::eNonPremultiplied)
+ mPremultipliedAlpha = false;
+
+ mCurrentState.z = 0;
+ mCurrentState.w = w;
+ mCurrentState.h = h;
+ mCurrentState.alpha = 0xFF;
+ mCurrentState.flags = layerFlags;
+ mCurrentState.sequence = 0;
+ mCurrentState.transform.set(0, 0);
+
+ // drawing state & current state are identical
+ mDrawingState = mCurrentState;
+}
+
+void LayerBase::commitTransaction(bool skipSize) {
+ const uint32_t w = mDrawingState.w;
+ const uint32_t h = mDrawingState.h;
+ mDrawingState = mCurrentState;
+ if (skipSize) {
+ mDrawingState.w = w;
+ mDrawingState.h = h;
+ }
+}
+void LayerBase::forceVisibilityTransaction() {
+ // this can be called without SurfaceFlinger.mStateLock, but if we
+ // can atomically increment the sequence number, it doesn't matter.
+ android_atomic_inc(&mCurrentState.sequence);
+ requestTransaction();
+}
+bool LayerBase::requestTransaction() {
+ int32_t old = setTransactionFlags(eTransactionNeeded);
+ return ((old & eTransactionNeeded) == 0);
+}
+uint32_t LayerBase::getTransactionFlags(uint32_t flags) {
+ return android_atomic_and(~flags, &mTransactionFlags) & flags;
+}
+uint32_t LayerBase::setTransactionFlags(uint32_t flags) {
+ return android_atomic_or(flags, &mTransactionFlags);
+}
+
+void LayerBase::setSizeChanged(uint32_t w, uint32_t h) {
+}
+
+bool LayerBase::setPosition(int32_t x, int32_t y) {
+ if (mCurrentState.transform.tx() == x && mCurrentState.transform.ty() == y)
+ return false;
+ mCurrentState.sequence++;
+ mCurrentState.transform.set(x, y);
+ requestTransaction();
+ return true;
+}
+bool LayerBase::setLayer(uint32_t z) {
+ if (mCurrentState.z == z)
+ return false;
+ mCurrentState.sequence++;
+ mCurrentState.z = z;
+ requestTransaction();
+ return true;
+}
+bool LayerBase::setSize(uint32_t w, uint32_t h) {
+ if (mCurrentState.w == w && mCurrentState.h == h)
+ return false;
+ setSizeChanged(w, h);
+ mCurrentState.w = w;
+ mCurrentState.h = h;
+ requestTransaction();
+ return true;
+}
+bool LayerBase::setAlpha(uint8_t alpha) {
+ if (mCurrentState.alpha == alpha)
+ return false;
+ mCurrentState.sequence++;
+ mCurrentState.alpha = alpha;
+ requestTransaction();
+ return true;
+}
+bool LayerBase::setMatrix(const layer_state_t::matrix22_t& matrix) {
+ // TODO: check the matrix has changed
+ mCurrentState.sequence++;
+ mCurrentState.transform.set(
+ matrix.dsdx, matrix.dsdy, matrix.dtdx, matrix.dtdy);
+ requestTransaction();
+ return true;
+}
+bool LayerBase::setTransparentRegionHint(const Region& transparent) {
+ // TODO: check the region has changed
+ mCurrentState.sequence++;
+ mCurrentState.transparentRegion = transparent;
+ requestTransaction();
+ return true;
+}
+bool LayerBase::setFlags(uint8_t flags, uint8_t mask) {
+ const uint32_t newFlags = (mCurrentState.flags & ~mask) | (flags & mask);
+ if (mCurrentState.flags == newFlags)
+ return false;
+ mCurrentState.sequence++;
+ mCurrentState.flags = newFlags;
+ requestTransaction();
+ return true;
+}
+
+Rect LayerBase::visibleBounds() const
+{
+ return mTransformedBounds;
+}
+
+void LayerBase::setVisibleRegion(const Region& visibleRegion) {
+ // always called from main thread
+ visibleRegionScreen = visibleRegion;
+}
+
+void LayerBase::setCoveredRegion(const Region& coveredRegion) {
+ // always called from main thread
+ coveredRegionScreen = coveredRegion;
+}
+
+uint32_t LayerBase::doTransaction(uint32_t flags)
+{
+ const Layer::State& front(drawingState());
+ const Layer::State& temp(currentState());
+
+ if (temp.sequence != front.sequence) {
+ // invalidate and recompute the visible regions if needed
+ flags |= eVisibleRegion;
+ this->contentDirty = true;
+ }
+
+ // Commit the transaction
+ commitTransaction(flags & eRestartTransaction);
+ return flags;
+}
+
+Point LayerBase::getPhysicalSize() const
+{
+ const Layer::State& front(drawingState());
+ return Point(front.w, front.h);
+}
+
+void LayerBase::validateVisibility(const Transform& planeTransform)
+{
+ const Layer::State& s(drawingState());
+ const Transform tr(planeTransform * s.transform);
+ const bool transformed = tr.transformed();
+
+ const Point size(getPhysicalSize());
+ uint32_t w = size.x;
+ uint32_t h = size.y;
+ tr.transform(mVertices[0], 0, 0);
+ tr.transform(mVertices[1], 0, h);
+ tr.transform(mVertices[2], w, h);
+ tr.transform(mVertices[3], w, 0);
+ if (UNLIKELY(transformed)) {
+ // NOTE: here we could also punt if we have too many rectangles
+ // in the transparent region
+ if (tr.preserveRects()) {
+ // transform the transparent region
+ transparentRegionScreen = tr.transform(s.transparentRegion);
+ } else {
+ // transformation too complex, can't do the transparent region
+ // optimization.
+ transparentRegionScreen.clear();
+ }
+ } else {
+ transparentRegionScreen = s.transparentRegion;
+ }
+
+ // cache a few things...
+ mOrientation = tr.getOrientation();
+ mTransformedBounds = tr.makeBounds(w, h);
+ mTransformed = transformed;
+ mLeft = tr.tx();
+ mTop = tr.ty();
+
+ // see if we can/should use 2D h/w with the new configuration
+ mCanUseCopyBit = false;
+ copybit_device_t* copybit = mFlinger->getBlitEngine();
+ if (copybit) {
+ const int step = copybit->get(copybit, COPYBIT_ROTATION_STEP_DEG);
+ const int scaleBits = copybit->get(copybit, COPYBIT_SCALING_FRAC_BITS);
+ mCanUseCopyBit = true;
+ if ((mOrientation < 0) && (step > 1)) {
+ // arbitrary orientations not supported
+ mCanUseCopyBit = false;
+ } else if ((mOrientation > 0) && (step > 90)) {
+ // 90 deg rotations not supported
+ mCanUseCopyBit = false;
+ } else if ((tr.getType() & SkMatrix::kScale_Mask) && (scaleBits < 12)) {
+ // arbitrary scaling not supported
+ mCanUseCopyBit = false;
+ }
+#if HONOR_PREMULTIPLIED_ALPHA
+ else if (needsBlending() && mPremultipliedAlpha) {
+ // pre-multiplied alpha not supported
+ mCanUseCopyBit = false;
+ }
+#endif
+ else {
+ // here, we determined we can use copybit
+ if (tr.getType() & SkMatrix::kScale_Mask) {
+ // and we have scaling
+ if (!transparentRegionScreen.isRect()) {
+ // we punt because blending is cheap (h/w) and the region is
+ // complex, which may causes artifacts when copying
+ // scaled content
+ transparentRegionScreen.clear();
+ }
+ }
+ }
+ }
+}
+
+void LayerBase::lockPageFlip(bool& recomputeVisibleRegions)
+{
+}
+
+void LayerBase::unlockPageFlip(
+ const Transform& planeTransform, Region& outDirtyRegion)
+{
+ if ((android_atomic_and(~1, &mInvalidate)&1) == 1) {
+ outDirtyRegion.orSelf(visibleRegionScreen);
+ }
+}
+
+void LayerBase::finishPageFlip()
+{
+}
+
+void LayerBase::invalidate()
+{
+ if ((android_atomic_or(1, &mInvalidate)&1) == 0) {
+ mFlinger->signalEvent();
+ }
+}
+
+void LayerBase::drawRegion(const Region& reg) const
+{
+ Region::iterator iterator(reg);
+ if (iterator) {
+ Rect r;
+ const DisplayHardware& hw(graphicPlane(0).displayHardware());
+ const int32_t fbWidth = hw.getWidth();
+ const int32_t fbHeight = hw.getHeight();
+ const GLshort vertices[][2] = { { 0, 0 }, { fbWidth, 0 },
+ { fbWidth, fbHeight }, { 0, fbHeight } };
+ glVertexPointer(2, GL_SHORT, 0, vertices);
+ while (iterator.iterate(&r)) {
+ const GLint sy = fbHeight - (r.top + r.height());
+ glScissor(r.left, sy, r.width(), r.height());
+ glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+ }
+ }
+}
+
+void LayerBase::draw(const Region& inClip) const
+{
+ // invalidate the region we'll update
+ Region clip(inClip); // copy-on-write, so no-op most of the time
+
+ // Remove the transparent area from the clipping region
+ const State& s = drawingState();
+ if (LIKELY(!s.transparentRegion.isEmpty())) {
+ clip.subtract(transparentRegionScreen);
+ if (clip.isEmpty()) {
+ // usually this won't happen because this should be taken care of
+ // by SurfaceFlinger::computeVisibleRegions()
+ return;
+ }
+ }
+
+ // reset GL state
+ glEnable(GL_SCISSOR_TEST);
+
+ onDraw(clip);
+
+ /*
+ glDisable(GL_TEXTURE_2D);
+ glDisable(GL_DITHER);
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
+ glColor4x(0, 0x8000, 0, 0x10000);
+ drawRegion(transparentRegionScreen);
+ glDisable(GL_BLEND);
+ */
+}
+
+GLuint LayerBase::createTexture() const
+{
+ GLuint textureName = -1;
+ glGenTextures(1, &textureName);
+ glBindTexture(GL_TEXTURE_2D, textureName);
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+ if (mFlags & DisplayHardware::SLOW_CONFIG) {
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ } else {
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ }
+ return textureName;
+}
+
+void LayerBase::clearWithOpenGL(const Region& clip) const
+{
+ const DisplayHardware& hw(graphicPlane(0).displayHardware());
+ const uint32_t fbHeight = hw.getHeight();
+ glColor4x(0,0,0,0);
+ glDisable(GL_TEXTURE_2D);
+ glDisable(GL_BLEND);
+ glDisable(GL_DITHER);
+ Rect r;
+ Region::iterator iterator(clip);
+ if (iterator) {
+ glEnable(GL_SCISSOR_TEST);
+ glVertexPointer(2, GL_FIXED, 0, mVertices);
+ while (iterator.iterate(&r)) {
+ const GLint sy = fbHeight - (r.top + r.height());
+ glScissor(r.left, sy, r.width(), r.height());
+ glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+ }
+ }
+}
+
+void LayerBase::drawWithOpenGL(const Region& clip,
+ GLint textureName, const GGLSurface& t, int transform) const
+{
+ const DisplayHardware& hw(graphicPlane(0).displayHardware());
+ const uint32_t fbHeight = hw.getHeight();
+ const State& s(drawingState());
+
+ // bind our texture
+ validateTexture(textureName);
+ glEnable(GL_TEXTURE_2D);
+
+ // Dithering...
+ if (s.flags & ISurfaceComposer::eLayerDither) {
+ glEnable(GL_DITHER);
+ } else {
+ glDisable(GL_DITHER);
+ }
+
+ if (UNLIKELY(s.alpha < 0xFF)) {
+ // We have an alpha-modulation. We need to modulate all
+ // texture components by alpha because we're always using
+ // premultiplied alpha.
+
+ // If the texture doesn't have an alpha channel we can
+ // use REPLACE and switch to non premultiplied alpha
+ // blending (SRCA/ONE_MINUS_SRCA).
+
+ GLenum env, src;
+ if (needsBlending()) {
+ env = GL_MODULATE;
+ src = mPremultipliedAlpha ? GL_ONE : GL_SRC_ALPHA;
+ } else {
+ env = GL_REPLACE;
+ src = GL_SRC_ALPHA;
+ }
+ const GGLfixed alpha = (s.alpha << 16)/255;
+ glColor4x(alpha, alpha, alpha, alpha);
+ glEnable(GL_BLEND);
+ glBlendFunc(src, GL_ONE_MINUS_SRC_ALPHA);
+ glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, env);
+ } else {
+ glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+ glColor4x(0x10000, 0x10000, 0x10000, 0x10000);
+ if (needsBlending()) {
+ GLenum src = mPremultipliedAlpha ? GL_ONE : GL_SRC_ALPHA;
+ glEnable(GL_BLEND);
+ glBlendFunc(src, GL_ONE_MINUS_SRC_ALPHA);
+ } else {
+ glDisable(GL_BLEND);
+ }
+ }
+
+ if (UNLIKELY(transformed()
+ || !(mFlags & DisplayHardware::DRAW_TEXTURE_EXTENSION) ))
+ {
+ //StopWatch watch("GL transformed");
+ Region::iterator iterator(clip);
+ if (iterator) {
+ // always use high-quality filtering with fast configurations
+ bool fast = !(mFlags & DisplayHardware::SLOW_CONFIG);
+ if (!fast && s.flags & ISurfaceComposer::eLayerFilter) {
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ }
+ const GLfixed texCoords[4][2] = {
+ { 0, 0 },
+ { 0, 0x10000 },
+ { 0x10000, 0x10000 },
+ { 0x10000, 0 }
+ };
+
+ glMatrixMode(GL_TEXTURE);
+ glLoadIdentity();
+
+ if (transform == HAL_TRANSFORM_ROT_90) {
+ glTranslatef(0, 1, 0);
+ glRotatef(-90, 0, 0, 1);
+ }
+
+ if (!(mFlags & DisplayHardware::NPOT_EXTENSION)) {
+ // find the smallest power-of-two that will accommodate our surface
+ GLuint tw = 1 << (31 - clz(t.width));
+ GLuint th = 1 << (31 - clz(t.height));
+ if (tw < t.width) tw <<= 1;
+ if (th < t.height) th <<= 1;
+ // this divide should be relatively fast because it's
+ // a power-of-two (optimized path in libgcc)
+ GLfloat ws = GLfloat(t.width) /tw;
+ GLfloat hs = GLfloat(t.height)/th;
+ glScalef(ws, hs, 1.0f);
+ }
+
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+ glVertexPointer(2, GL_FIXED, 0, mVertices);
+ glTexCoordPointer(2, GL_FIXED, 0, texCoords);
+
+ Rect r;
+ while (iterator.iterate(&r)) {
+ const GLint sy = fbHeight - (r.top + r.height());
+ glScissor(r.left, sy, r.width(), r.height());
+ glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+ }
+
+ if (!fast && s.flags & ISurfaceComposer::eLayerFilter) {
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ }
+ glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+ }
+ } else {
+ Region::iterator iterator(clip);
+ if (iterator) {
+ Rect r;
+ GLint crop[4] = { 0, t.height, t.width, -t.height };
+ glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
+ int x = tx();
+ int y = ty();
+ y = fbHeight - (y + t.height);
+ while (iterator.iterate(&r)) {
+ const GLint sy = fbHeight - (r.top + r.height());
+ glScissor(r.left, sy, r.width(), r.height());
+ glDrawTexiOES(x, y, 0, t.width, t.height);
+ }
+ }
+ }
+}
+
+void LayerBase::validateTexture(GLint textureName) const
+{
+ glBindTexture(GL_TEXTURE_2D, textureName);
+ // TODO: reload the texture if needed
+ // this is currently done in loadTexture() below
+}
+
+void LayerBase::loadTexture(const Region& dirty,
+ GLint textureName, const GGLSurface& t,
+ GLuint& textureWidth, GLuint& textureHeight) const
+{
+ // TODO: defer the actual texture reload until LayerBase::validateTexture
+ // is called.
+
+ uint32_t flags = mFlags;
+ glBindTexture(GL_TEXTURE_2D, textureName);
+
+ GLuint tw = t.width;
+ GLuint th = t.height;
+
+ /*
+ * In OpenGL ES we can't specify a stride with glTexImage2D (however,
+ * GL_UNPACK_ALIGNMENT is 4, which in essence allows a limited form of
+ * stride).
+ * So if the stride here isn't representable with GL_UNPACK_ALIGNMENT, we
+ * need to do something reasonable (here creating a bigger texture).
+ *
+ * extra pixels = (((stride - width) * pixelsize) / GL_UNPACK_ALIGNMENT);
+ *
+ * This situation doesn't happen often, but some h/w have a limitation
+ * for their framebuffer (eg: must be multiple of 8 pixels), and
+ * we need to take that into account when using these buffers as
+ * textures.
+ *
+ * This should never be a problem with POT textures
+ */
+
+ tw += (((t.stride - tw) * bytesPerPixel(t.format)) / 4);
+
+ /*
+ * round to POT if needed
+ */
+
+ GLuint texture_w = tw;
+ GLuint texture_h = th;
+ if (!(flags & DisplayHardware::NPOT_EXTENSION)) {
+ // find the smallest power-of-two that will accommodate our surface
+ texture_w = 1 << (31 - clz(t.width));
+ texture_h = 1 << (31 - clz(t.height));
+ if (texture_w < t.width) texture_w <<= 1;
+ if (texture_h < t.height) texture_h <<= 1;
+ if (texture_w != tw || texture_h != th) {
+ // we can't use DIRECT_TEXTURE since we changed the size
+ // of the texture
+ flags &= ~DisplayHardware::DIRECT_TEXTURE;
+ }
+ }
+
+ if (flags & DisplayHardware::DIRECT_TEXTURE) {
+ // here we're guaranteed that texture_{w|h} == t{w|h}
+ if (t.format == GGL_PIXEL_FORMAT_RGB_565) {
+ glTexImage2D(GL_DIRECT_TEXTURE_2D_QUALCOMM, 0,
+ GL_RGB, tw, th, 0,
+ GL_RGB, GL_UNSIGNED_SHORT_5_6_5, t.data);
+ } else if (t.format == GGL_PIXEL_FORMAT_RGBA_4444) {
+ glTexImage2D(GL_DIRECT_TEXTURE_2D_QUALCOMM, 0,
+ GL_RGBA, tw, th, 0,
+ GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, t.data);
+ } else if (t.format == GGL_PIXEL_FORMAT_RGBA_8888) {
+ glTexImage2D(GL_DIRECT_TEXTURE_2D_QUALCOMM, 0,
+ GL_RGBA, tw, th, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, t.data);
+ } else if (t.format == GGL_PIXEL_FORMAT_BGRA_8888) {
+ // TODO: add GL_BGRA extension
+ } else {
+ // oops, we don't handle this format, try the regular path
+ goto regular;
+ }
+ textureWidth = tw;
+ textureHeight = th;
+ } else {
+regular:
+ Rect bounds(dirty.bounds());
+ GLvoid* data = 0;
+ if (texture_w!=textureWidth || texture_h!=textureHeight) {
+ // texture size changed, we need to create a new one
+
+ if (!textureWidth || !textureHeight) {
+ // this is the first time, load the whole texture
+ if (texture_w==tw && texture_h==th) {
+ // we can do it one pass
+ data = t.data;
+ } else {
+ // we have to create the texture first because it
+ // doesn't match the size of the buffer
+ bounds.set(Rect(tw, th));
+ }
+ }
+
+ if (t.format == GGL_PIXEL_FORMAT_RGB_565) {
+ glTexImage2D(GL_TEXTURE_2D, 0,
+ GL_RGB, texture_w, texture_h, 0,
+ GL_RGB, GL_UNSIGNED_SHORT_5_6_5, data);
+ } else if (t.format == GGL_PIXEL_FORMAT_RGBA_4444) {
+ glTexImage2D(GL_TEXTURE_2D, 0,
+ GL_RGBA, texture_w, texture_h, 0,
+ GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, data);
+ } else if (t.format == GGL_PIXEL_FORMAT_RGBA_8888) {
+ glTexImage2D(GL_TEXTURE_2D, 0,
+ GL_RGBA, texture_w, texture_h, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, data);
+ } else if ( t.format == GGL_PIXEL_FORMAT_YCbCr_422_SP ||
+ t.format == GGL_PIXEL_FORMAT_YCbCr_420_SP) {
+ // just show the Y plane of YUV buffers
+ data = t.data;
+ glTexImage2D(GL_TEXTURE_2D, 0,
+ GL_LUMINANCE, texture_w, texture_h, 0,
+ GL_LUMINANCE, GL_UNSIGNED_BYTE, data);
+ } else {
+ // oops, we don't handle this format!
+ LOGE("layer %p, texture=%d, using format %d, which is not "
+ "supported by the GL", this, textureName, t.format);
+ textureName = -1;
+ }
+ textureWidth = texture_w;
+ textureHeight = texture_h;
+ }
+ if (!data && textureName>=0) {
+ if (t.format == GGL_PIXEL_FORMAT_RGB_565) {
+ glTexSubImage2D(GL_TEXTURE_2D, 0,
+ 0, bounds.top, t.width, bounds.height(),
+ GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
+ t.data + bounds.top*t.width*2);
+ } else if (t.format == GGL_PIXEL_FORMAT_RGBA_4444) {
+ glTexSubImage2D(GL_TEXTURE_2D, 0,
+ 0, bounds.top, t.width, bounds.height(),
+ GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4,
+ t.data + bounds.top*t.width*2);
+ } else if (t.format == GGL_PIXEL_FORMAT_RGBA_8888) {
+ glTexSubImage2D(GL_TEXTURE_2D, 0,
+ 0, bounds.top, t.width, bounds.height(),
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ t.data + bounds.top*t.width*4);
+ }
+ }
+ }
+}
+
+bool LayerBase::canUseCopybit() const
+{
+ return mCanUseCopyBit;
+}
+
+// ---------------------------------------------------------------------------
+
+LayerBaseClient::LayerBaseClient(SurfaceFlinger* flinger, DisplayID display,
+ Client* c, int32_t i)
+ : LayerBase(flinger, display), client(c),
+ lcblk( c ? &(c->ctrlblk->layers[i]) : 0 ),
+ mIndex(i)
+{
+ if (client) {
+ client->bindLayer(this, i);
+
+ // Initialize this layer's control block
+ memset(this->lcblk, 0, sizeof(layer_cblk_t));
+ this->lcblk->identity = mIdentity;
+ Region::writeEmpty(&(this->lcblk->region[0]), sizeof(flat_region_t));
+ Region::writeEmpty(&(this->lcblk->region[1]), sizeof(flat_region_t));
+ }
+}
+
+LayerBaseClient::~LayerBaseClient()
+{
+ if (client) {
+ client->free(mIndex);
+ }
+}
+
+int32_t LayerBaseClient::serverIndex() const {
+ if (client) {
+ return (client->cid<<16)|mIndex;
+ }
+ return 0xFFFF0000 | mIndex;
+}
+
+sp<LayerBaseClient::Surface> LayerBaseClient::getSurface() const
+{
+ return new Surface(clientIndex(), mIdentity);
+}
+
+
+// ---------------------------------------------------------------------------
+
+}; // namespace android