diff options
Diffstat (limited to 'libs/surfaceflinger/LayerDim.cpp')
| -rw-r--r-- | libs/surfaceflinger/LayerDim.cpp | 159 |
1 files changed, 107 insertions, 52 deletions
diff --git a/libs/surfaceflinger/LayerDim.cpp b/libs/surfaceflinger/LayerDim.cpp index 0c347cc..fd61e30 100644 --- a/libs/surfaceflinger/LayerDim.cpp +++ b/libs/surfaceflinger/LayerDim.cpp @@ -14,8 +14,6 @@ * limitations under the License. */ -#define LOG_TAG "SurfaceFlinger" - #include <stdlib.h> #include <stdint.h> #include <sys/types.h> @@ -23,9 +21,10 @@ #include <utils/Errors.h> #include <utils/Log.h> +#include <ui/GraphicBuffer.h> + #include "LayerDim.h" #include "SurfaceFlinger.h" -#include "VRamHeap.h" #include "DisplayHardware/DisplayHardware.h" namespace android { @@ -33,27 +32,76 @@ namespace android { const uint32_t LayerDim::typeInfo = LayerBaseClient::typeInfo | 0x10; const char* const LayerDim::typeID = "LayerDim"; -sp<MemoryDealer> LayerDim::mDimmerDealer; -LayerBitmap LayerDim::mDimmerBitmap; + +bool LayerDim::sUseTexture; +GLuint LayerDim::sTexId; +EGLImageKHR LayerDim::sImage; +int32_t LayerDim::sWidth; +int32_t LayerDim::sHeight; // --------------------------------------------------------------------------- LayerDim::LayerDim(SurfaceFlinger* flinger, DisplayID display, - Client* client, int32_t i) - : LayerBaseClient(flinger, display, client, i) + const sp<Client>& client, int32_t i) + : LayerBaseClient(flinger, display, client, i) { } void LayerDim::initDimmer(SurfaceFlinger* flinger, uint32_t w, uint32_t h) { - // must only be called once. - mDimmerDealer = flinger->getSurfaceHeapManager() - ->createHeap(ISurfaceComposer::eHardware); - if (mDimmerDealer != 0) { - mDimmerBitmap.init(mDimmerDealer); - mDimmerBitmap.setBits(w, h, 1, PIXEL_FORMAT_RGB_565); - mDimmerBitmap.clear(); + 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() @@ -63,49 +111,56 @@ LayerDim::~LayerDim() void LayerDim::onDraw(const Region& clip) const { const State& s(drawingState()); - - Region::iterator iterator(clip); - if (s.alpha>0 && iterator) { + 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()); - - status_t err = NO_ERROR; - const int can_use_copybit = canUseCopybit(); - if (can_use_copybit) { - // StopWatch watch("copybit"); - copybit_image_t dst; - hw.getDisplaySurface(&dst); - const copybit_rect_t& drect - = reinterpret_cast<const copybit_rect_t&>(mTransformedBounds); - - copybit_image_t src; - mDimmerBitmap.getBitmapSurface(&src); - const copybit_rect_t& srect(drect); - - copybit_device_t* copybit = mFlinger->getBlitEngine(); - copybit->set_parameter(copybit, COPYBIT_TRANSFORM, 0); - copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, s.alpha); - copybit->set_parameter(copybit, COPYBIT_DITHER, COPYBIT_ENABLE); - region_iterator it(clip); - err = copybit->stretch(copybit, &dst, &src, &drect, &srect, &it); + 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); } - if (!can_use_copybit || err) { - const GGLfixed alpha = (s.alpha << 16)/255; - const uint32_t fbHeight = hw.getHeight(); - glDisable(GL_TEXTURE_2D); - glDisable(GL_DITHER); - glEnable(GL_BLEND); - glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); - glColor4x(0, 0, 0, alpha); - glVertexPointer(2, GL_FIXED, 0, mVertices); - 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); - } + 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); } // --------------------------------------------------------------------------- |