diff options
Diffstat (limited to 'libs/surfaceflinger/LayerDim.cpp')
-rw-r--r-- | libs/surfaceflinger/LayerDim.cpp | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/libs/surfaceflinger/LayerDim.cpp b/libs/surfaceflinger/LayerDim.cpp deleted file mode 100644 index fd61e30..0000000 --- a/libs/surfaceflinger/LayerDim.cpp +++ /dev/null @@ -1,168 +0,0 @@ -/* - * 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. - */ - -#include <stdlib.h> -#include <stdint.h> -#include <sys/types.h> - -#include <utils/Errors.h> -#include <utils/Log.h> - -#include <ui/GraphicBuffer.h> - -#include "LayerDim.h" -#include "SurfaceFlinger.h" -#include "DisplayHardware/DisplayHardware.h" - -namespace android { -// --------------------------------------------------------------------------- - -const uint32_t LayerDim::typeInfo = LayerBaseClient::typeInfo | 0x10; -const char* const LayerDim::typeID = "LayerDim"; - -bool LayerDim::sUseTexture; -GLuint LayerDim::sTexId; -EGLImageKHR LayerDim::sImage; -int32_t LayerDim::sWidth; -int32_t LayerDim::sHeight; - -// --------------------------------------------------------------------------- - -LayerDim::LayerDim(SurfaceFlinger* flinger, DisplayID display, - const sp<Client>& client, int32_t i) - : LayerBaseClient(flinger, display, client, i) -{ -} - -void LayerDim::initDimmer(SurfaceFlinger* flinger, uint32_t w, uint32_t h) -{ - sTexId = -1; - sImage = EGL_NO_IMAGE_KHR; - sWidth = w; - sHeight = h; - sUseTexture = false; - -#if defined(DIM_WITH_TEXTURE) && defined(EGL_ANDROID_image_native_buffer) - -#warning "using a texture to implement LayerDim" - - /* On some h/w like msm7K, it is faster to use a texture because the - * software renderer will defer to copybit, for this to work we need to - * use an EGLImage texture so copybit can actually make use of it. - * This burns a full-screen worth of graphic memory. - */ - - const DisplayHardware& hw(flinger->graphicPlane(0).displayHardware()); - uint32_t flags = hw.getFlags(); - - if (LIKELY(flags & DisplayHardware::DIRECT_TEXTURE)) { - sp<GraphicBuffer> buffer = new GraphicBuffer(w, h, PIXEL_FORMAT_RGB_565, - GraphicBuffer::USAGE_SW_WRITE_OFTEN | - GraphicBuffer::USAGE_HW_TEXTURE); - - android_native_buffer_t* clientBuf = buffer->getNativeBuffer(); - - glGenTextures(1, &sTexId); - glBindTexture(GL_TEXTURE_2D, sTexId); - - EGLDisplay dpy = eglGetCurrentDisplay(); - sImage = eglCreateImageKHR(dpy, EGL_NO_CONTEXT, - EGL_NATIVE_BUFFER_ANDROID, (EGLClientBuffer)clientBuf, 0); - if (sImage == EGL_NO_IMAGE_KHR) { - LOGE("eglCreateImageKHR() failed. err=0x%4x", eglGetError()); - return; - } - - glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)sImage); - GLint error = glGetError(); - if (error != GL_NO_ERROR) { - eglDestroyImageKHR(dpy, sImage); - LOGE("glEGLImageTargetTexture2DOES() failed. err=0x%4x", error); - return; - } - - // initialize the texture with zeros - GGLSurface t; - buffer->lock(&t, GRALLOC_USAGE_SW_WRITE_OFTEN); - memset(t.data, 0, t.stride * t.height * 2); - buffer->unlock(); - sUseTexture = true; - } -#endif -} - -LayerDim::~LayerDim() -{ -} - -void LayerDim::onDraw(const Region& clip) const -{ - const State& s(drawingState()); - Region::const_iterator it = clip.begin(); - Region::const_iterator const end = clip.end(); - if (s.alpha>0 && (it != end)) { - const DisplayHardware& hw(graphicPlane(0).displayHardware()); - const GGLfixed alpha = (s.alpha << 16)/255; - const uint32_t fbHeight = hw.getHeight(); - glDisable(GL_DITHER); - glEnable(GL_BLEND); - glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); - glColor4x(0, 0, 0, alpha); - -#if defined(DIM_WITH_TEXTURE) && defined(EGL_ANDROID_image_native_buffer) - if (sUseTexture) { - glBindTexture(GL_TEXTURE_2D, sTexId); - glEnable(GL_TEXTURE_2D); - glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); - const GLshort texCoords[4][2] = { - { 0, 0 }, - { 0, 1 }, - { 1, 1 }, - { 1, 0 } - }; - glMatrixMode(GL_TEXTURE); - glLoadIdentity(); - glEnableClientState(GL_TEXTURE_COORD_ARRAY); - glTexCoordPointer(2, GL_SHORT, 0, texCoords); - } else -#endif - { - glDisable(GL_TEXTURE_2D); - } - - GLshort w = sWidth; - GLshort h = sHeight; - const GLshort vertices[4][2] = { - { 0, 0 }, - { 0, h }, - { w, h }, - { w, 0 } - }; - glVertexPointer(2, GL_SHORT, 0, vertices); - - while (it != end) { - const Rect& r = *it++; - const GLint sy = fbHeight - (r.top + r.height()); - glScissor(r.left, sy, r.width(), r.height()); - glDrawArrays(GL_TRIANGLE_FAN, 0, 4); - } - } - glDisableClientState(GL_TEXTURE_COORD_ARRAY); -} - -// --------------------------------------------------------------------------- - -}; // namespace android |