1 // Copyright 2016 The SwiftShader Authors. All Rights Reserved.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include "FrameBufferAndroid.hpp"
16 #include "GrallocAndroid.hpp"
17
18 #include <system/window.h>
19 #include <cutils/log.h>
20
21 namespace sw
22 {
dequeueBuffer(ANativeWindow * window,ANativeWindowBuffer ** buffer)23 inline int dequeueBuffer(ANativeWindow* window, ANativeWindowBuffer** buffer)
24 {
25 #if ANDROID_PLATFORM_SDK_VERSION > 16
26 return native_window_dequeue_buffer_and_wait(window, buffer);
27 #else
28 return window->dequeueBuffer(window, buffer);
29 #endif
30 }
31
queueBuffer(ANativeWindow * window,ANativeWindowBuffer * buffer,int fenceFd)32 inline int queueBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer, int fenceFd)
33 {
34 #if ANDROID_PLATFORM_SDK_VERSION > 16
35 return window->queueBuffer(window, buffer, fenceFd);
36 #else
37 return window->queueBuffer(window, buffer);
38 #endif
39 }
40
cancelBuffer(ANativeWindow * window,ANativeWindowBuffer * buffer,int fenceFd)41 inline int cancelBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer, int fenceFd)
42 {
43 #if ANDROID_PLATFORM_SDK_VERSION > 16
44 return window->cancelBuffer(window, buffer, fenceFd);
45 #else
46 return window->cancelBuffer(window, buffer);
47 #endif
48 }
49
FrameBufferAndroid(ANativeWindow * window,int width,int height)50 FrameBufferAndroid::FrameBufferAndroid(ANativeWindow* window, int width, int height)
51 : FrameBuffer(width, height, false, false),
52 nativeWindow(window), buffer(nullptr)
53 {
54 nativeWindow->common.incRef(&nativeWindow->common);
55 native_window_set_usage(nativeWindow, GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN);
56 }
57
~FrameBufferAndroid()58 FrameBufferAndroid::~FrameBufferAndroid()
59 {
60 nativeWindow->common.decRef(&nativeWindow->common);
61 }
62
blit(void * source,const Rect * sourceRect,const Rect * destRect,Format sourceFormat,size_t sourceStride)63 void FrameBufferAndroid::blit(void *source, const Rect *sourceRect, const Rect *destRect, Format sourceFormat, size_t sourceStride)
64 {
65 copy(source, sourceFormat, sourceStride);
66
67 if(buffer)
68 {
69 if(locked)
70 {
71 locked = nullptr;
72 unlock();
73 }
74
75 queueBuffer(nativeWindow, buffer, -1);
76 }
77 }
78
lock()79 void *FrameBufferAndroid::lock()
80 {
81 if(dequeueBuffer(nativeWindow, &buffer) != 0)
82 {
83 return nullptr;
84 }
85
86 if(GrallocModule::getInstance()->lock(buffer->handle,
87 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN,
88 0, 0, buffer->width, buffer->height, &locked) != 0)
89 {
90 ALOGE("%s failed to lock buffer %p", __FUNCTION__, buffer);
91 return nullptr;
92 }
93
94 if((buffer->width < width) || (buffer->height < height))
95 {
96 ALOGI("lock failed: buffer of %dx%d too small for window of %dx%d",
97 buffer->width, buffer->height, width, height);
98 return nullptr;
99 }
100
101 switch(buffer->format)
102 {
103 case HAL_PIXEL_FORMAT_RGB_565: destFormat = FORMAT_R5G6B5; break;
104 case HAL_PIXEL_FORMAT_RGBA_8888: destFormat = FORMAT_A8B8G8R8; break;
105 #if ANDROID_PLATFORM_SDK_VERSION > 16
106 case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED: destFormat = FORMAT_X8B8G8R8; break;
107 #endif
108 case HAL_PIXEL_FORMAT_RGBX_8888: destFormat = FORMAT_X8B8G8R8; break;
109 case HAL_PIXEL_FORMAT_BGRA_8888: destFormat = FORMAT_A8R8G8B8; break;
110 case HAL_PIXEL_FORMAT_RGB_888:
111 // Frame buffers are expected to have 16-bit or 32-bit colors, not 24-bit.
112 ALOGE("Unsupported frame buffer format RGB_888"); ASSERT(false);
113 destFormat = FORMAT_R8G8B8; // Wrong component order.
114 break;
115 default:
116 ALOGE("Unsupported frame buffer format %d", buffer->format); ASSERT(false);
117 destFormat = FORMAT_NULL;
118 break;
119 }
120
121 stride = buffer->stride * Surface::bytes(destFormat);
122 return locked;
123 }
124
unlock()125 void FrameBufferAndroid::unlock()
126 {
127 if(!buffer)
128 {
129 ALOGE("%s: badness unlock with no active buffer", __FUNCTION__);
130 return;
131 }
132
133 locked = nullptr;
134
135 if(GrallocModule::getInstance()->unlock(buffer->handle) != 0)
136 {
137 ALOGE("%s: badness unlock failed", __FUNCTION__);
138 }
139 }
140 }
141
createFrameBuffer(void * display,ANativeWindow * window,int width,int height)142 sw::FrameBuffer *createFrameBuffer(void *display, ANativeWindow* window, int width, int height)
143 {
144 return new sw::FrameBufferAndroid(window, width, height);
145 }
146