diff options
Diffstat (limited to 'services/surfaceflinger/LayerScreenshot.cpp')
| -rw-r--r-- | services/surfaceflinger/LayerScreenshot.cpp | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/services/surfaceflinger/LayerScreenshot.cpp b/services/surfaceflinger/LayerScreenshot.cpp deleted file mode 100644 index f8009b3..0000000 --- a/services/surfaceflinger/LayerScreenshot.cpp +++ /dev/null @@ -1,171 +0,0 @@ -/* - * Copyright (C) 2011 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. - */ - -#include <stdlib.h> -#include <stdint.h> -#include <sys/types.h> - -#include <GLES/gl.h> -#include <GLES/glext.h> - -#include <utils/Errors.h> -#include <utils/Log.h> - -#include <ui/GraphicBuffer.h> - -#include "LayerScreenshot.h" -#include "SurfaceFlinger.h" -#include "DisplayDevice.h" - - -namespace android { -// --------------------------------------------------------------------------- - -LayerScreenshot::LayerScreenshot(SurfaceFlinger* flinger, - const sp<Client>& client) - : LayerBaseClient(flinger, client), - mTextureName(0), mFlinger(flinger), mIsSecure(false) -{ -} - -LayerScreenshot::~LayerScreenshot() -{ - if (mTextureName) { - mFlinger->deleteTextureAsync(mTextureName); - } -} - -status_t LayerScreenshot::captureLocked(int32_t layerStack) { - GLfloat u, v; - status_t result = mFlinger->renderScreenToTextureLocked(layerStack, - &mTextureName, &u, &v); - if (result != NO_ERROR) { - return result; - } - initTexture(u, v); - - // Currently screenshot always comes from the default display - mIsSecure = mFlinger->getDefaultDisplayDevice()->getSecureLayerVisible(); - - return NO_ERROR; -} - -status_t LayerScreenshot::capture() { - GLfloat u, v; - status_t result = mFlinger->renderScreenToTexture(0, &mTextureName, &u, &v); - if (result != NO_ERROR) { - return result; - } - initTexture(u, v); - - // Currently screenshot always comes from the default display - mIsSecure = mFlinger->getDefaultDisplayDevice()->getSecureLayerVisible(); - - return NO_ERROR; -} - -void LayerScreenshot::initTexture(GLfloat u, GLfloat v) { - glBindTexture(GL_TEXTURE_2D, mTextureName); - glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - mTexCoords[0] = 0; mTexCoords[1] = v; - mTexCoords[2] = 0; mTexCoords[3] = 0; - mTexCoords[4] = u; mTexCoords[5] = 0; - mTexCoords[6] = u; mTexCoords[7] = v; -} - -void LayerScreenshot::initStates(uint32_t w, uint32_t h, uint32_t flags) { - LayerBaseClient::initStates(w, h, flags); - if (!(flags & ISurfaceComposerClient::eHidden)) { - capture(); - } - if (flags & ISurfaceComposerClient::eSecure) { - ALOGW("ignoring surface flag eSecure - LayerScreenshot is considered " - "secure iff it captures the contents of a secure surface."); - } -} - -uint32_t LayerScreenshot::doTransaction(uint32_t flags) -{ - const LayerBase::State& draw(drawingState()); - const LayerBase::State& curr(currentState()); - - if (draw.flags & layer_state_t::eLayerHidden) { - if (!(curr.flags & layer_state_t::eLayerHidden)) { - // we're going from hidden to visible - status_t err = captureLocked(curr.layerStack); - if (err != NO_ERROR) { - ALOGW("createScreenshotSurface failed (%s)", strerror(-err)); - } - } - } else if (curr.flags & layer_state_t::eLayerHidden) { - // we're going from visible to hidden - if (mTextureName) { - glDeleteTextures(1, &mTextureName); - mTextureName = 0; - } - } - return LayerBaseClient::doTransaction(flags); -} - -void LayerScreenshot::onDraw(const sp<const DisplayDevice>& hw, const Region& clip) const -{ - const State& s(drawingState()); - if (s.alpha>0) { - const GLfloat alpha = s.alpha/255.0f; - const uint32_t fbHeight = hw->getHeight(); - - if (s.alpha == 0xFF) { - glDisable(GL_BLEND); - glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); - } else { - glEnable(GL_BLEND); - glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); - glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); - } - - GLuint texName = mTextureName; - if (isSecure() && !hw->isSecure()) { - texName = mFlinger->getProtectedTexName(); - } - - LayerMesh mesh; - computeGeometry(hw, &mesh); - - glColor4f(alpha, alpha, alpha, alpha); - - glDisable(GL_TEXTURE_EXTERNAL_OES); - glEnable(GL_TEXTURE_2D); - - glBindTexture(GL_TEXTURE_2D, texName); - glMatrixMode(GL_TEXTURE); - glLoadIdentity(); - glMatrixMode(GL_MODELVIEW); - - glEnableClientState(GL_TEXTURE_COORD_ARRAY); - glTexCoordPointer(2, GL_FLOAT, 0, mTexCoords); - glVertexPointer(2, GL_FLOAT, 0, mesh.getVertices()); - glDrawArrays(GL_TRIANGLE_FAN, 0, mesh.getVertexCount()); - - glDisable(GL_BLEND); - glDisable(GL_TEXTURE_2D); - glDisableClientState(GL_TEXTURE_COORD_ARRAY); - } -} - -// --------------------------------------------------------------------------- - -}; // namespace android |