| // Copyright 2016 The SwiftShader Authors. All Rights Reserved. |
| // |
| // 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 "FrameBufferAndroid.hpp" |
| |
| #include "System/GrallocAndroid.hpp" |
| |
| #include <system/window.h> |
| |
| namespace sw |
| { |
| inline int dequeueBuffer(ANativeWindow* window, ANativeWindowBuffer** buffer) |
| { |
| #if ANDROID_PLATFORM_SDK_VERSION > 16 |
| return native_window_dequeue_buffer_and_wait(window, buffer); |
| #else |
| return window->dequeueBuffer(window, buffer); |
| #endif |
| } |
| |
| inline int queueBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer, int fenceFd) |
| { |
| #if ANDROID_PLATFORM_SDK_VERSION > 16 |
| return window->queueBuffer(window, buffer, fenceFd); |
| #else |
| return window->queueBuffer(window, buffer); |
| #endif |
| } |
| |
| inline int cancelBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer, int fenceFd) |
| { |
| #if ANDROID_PLATFORM_SDK_VERSION > 16 |
| return window->cancelBuffer(window, buffer, fenceFd); |
| #else |
| return window->cancelBuffer(window, buffer); |
| #endif |
| } |
| |
| FrameBufferAndroid::FrameBufferAndroid(ANativeWindow* window, int width, int height) |
| : FrameBuffer(width, height, false, false), |
| nativeWindow(window), buffer(nullptr) |
| { |
| nativeWindow->common.incRef(&nativeWindow->common); |
| native_window_set_usage(nativeWindow, GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN); |
| } |
| |
| FrameBufferAndroid::~FrameBufferAndroid() |
| { |
| nativeWindow->common.decRef(&nativeWindow->common); |
| } |
| |
| void FrameBufferAndroid::blit(sw::Surface *source, const Rect *sourceRect, const Rect *destRect) |
| { |
| copy(source); |
| |
| if(buffer) |
| { |
| if(framebuffer) |
| { |
| framebuffer = nullptr; |
| unlock(); |
| } |
| |
| queueBuffer(nativeWindow, buffer, -1); |
| } |
| } |
| |
| void *FrameBufferAndroid::lock() |
| { |
| if(dequeueBuffer(nativeWindow, &buffer) != 0) |
| { |
| return nullptr; |
| } |
| |
| if(GrallocModule::getInstance()->lock(buffer->handle, |
| GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN, |
| 0, 0, buffer->width, buffer->height, &framebuffer) != 0) |
| { |
| TRACE("%s failed to lock buffer %p", __FUNCTION__, buffer); |
| return nullptr; |
| } |
| |
| if((buffer->width < width) || (buffer->height < height)) |
| { |
| TRACE("lock failed: buffer of %dx%d too small for window of %dx%d", |
| buffer->width, buffer->height, width, height); |
| return nullptr; |
| } |
| |
| switch(buffer->format) |
| { |
| case HAL_PIXEL_FORMAT_RGB_565: format = FORMAT_R5G6B5; break; |
| case HAL_PIXEL_FORMAT_RGBA_8888: format = FORMAT_A8B8G8R8; break; |
| #if ANDROID_PLATFORM_SDK_VERSION > 16 |
| case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED: format = FORMAT_X8B8G8R8; break; |
| #endif |
| case HAL_PIXEL_FORMAT_RGBX_8888: format = FORMAT_X8B8G8R8; break; |
| case HAL_PIXEL_FORMAT_BGRA_8888: format = FORMAT_A8R8G8B8; break; |
| case HAL_PIXEL_FORMAT_RGB_888: |
| // Frame buffers are expected to have 16-bit or 32-bit colors, not 24-bit. |
| TRACE("Unsupported frame buffer format RGB_888"); ASSERT(false); |
| format = FORMAT_R8G8B8; // Wrong component order. |
| break; |
| default: |
| TRACE("Unsupported frame buffer format %d", buffer->format); ASSERT(false); |
| format = FORMAT_NULL; |
| break; |
| } |
| |
| stride = buffer->stride * Surface::bytes(format); |
| return framebuffer; |
| } |
| |
| void FrameBufferAndroid::unlock() |
| { |
| if(!buffer) |
| { |
| TRACE("%s: badness unlock with no active buffer", __FUNCTION__); |
| return; |
| } |
| |
| framebuffer = nullptr; |
| |
| if(GrallocModule::getInstance()->unlock(buffer->handle) != 0) |
| { |
| TRACE("%s: badness unlock failed", __FUNCTION__); |
| } |
| } |
| } |
| |
| sw::FrameBuffer *createFrameBuffer(void *display, ANativeWindow* window, int width, int height) |
| { |
| return new sw::FrameBufferAndroid(window, width, height); |
| } |