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
17 #ifndef ANDROID_NDK_BUILD
18 #include "Common/GrallocAndroid.hpp"
19 #include <sync/sync.h>
20 #include <system/graphics.h>
21 #include <vndk/window.h>
22 #else
23 #include <android/native_window.h>
24 #endif
25
26 namespace sw
27 {
28 #if !defined(ANDROID_NDK_BUILD)
dequeueBuffer(ANativeWindow * window,ANativeWindowBuffer ** buffer)29 inline int dequeueBuffer(ANativeWindow* window, ANativeWindowBuffer** buffer)
30 {
31 int fenceFd = -1;
32 int ret = ANativeWindow_dequeueBuffer(window, buffer, &fenceFd);
33 if (ret || fenceFd < 0) return ret;
34 sync_wait(fenceFd, -1 /* forever */);
35 close(fenceFd);
36 return ret;
37 }
38
queueBuffer(ANativeWindow * window,ANativeWindowBuffer * buffer,int fenceFd)39 inline int queueBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer, int fenceFd)
40 {
41 return ANativeWindow_queueBuffer(window, buffer, fenceFd);
42 }
43
cancelBuffer(ANativeWindow * window,ANativeWindowBuffer * buffer,int fenceFd)44 inline int cancelBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer, int fenceFd)
45 {
46 return ANativeWindow_cancelBuffer(window, buffer, fenceFd);
47 }
48 #endif // !defined(ANDROID_NDK_BUILD)
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 #ifndef ANDROID_NDK_BUILD
55 ANativeWindow_acquire(nativeWindow);
56 ANativeWindow_setUsage(nativeWindow, GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN);
57 #endif
58 }
59
~FrameBufferAndroid()60 FrameBufferAndroid::~FrameBufferAndroid()
61 {
62 #ifndef ANDROID_NDK_BUILD
63 ANativeWindow_release(nativeWindow);
64 #endif
65 }
66
blit(sw::Surface * source,const Rect * sourceRect,const Rect * destRect)67 void FrameBufferAndroid::blit(sw::Surface *source, const Rect *sourceRect, const Rect *destRect)
68 {
69 copy(source);
70
71 if(buffer)
72 {
73 if(framebuffer)
74 {
75 framebuffer = nullptr;
76 unlock();
77 }
78
79 #ifndef ANDROID_NDK_BUILD
80 queueBuffer(nativeWindow, buffer, -1);
81 #endif
82 }
83 }
84
lock()85 void *FrameBufferAndroid::lock()
86 {
87
88 #if defined(ANDROID_NDK_BUILD)
89 ANativeWindow_Buffer surfaceBuffer;
90 if (ANativeWindow_lock(nativeWindow, &surfaceBuffer, nullptr) != 0) {
91 TRACE("%s failed to lock buffer %p", __FUNCTION__, buffer);
92 return nullptr;
93 }
94 framebuffer = surfaceBuffer.bits;
95
96 if((surfaceBuffer.width < width) || (surfaceBuffer.height < height))
97 {
98 TRACE("lock failed: buffer of %dx%d too small for window of %dx%d",
99 surfaceBuffer.width, surfaceBuffer.height, width, height);
100 return nullptr;
101 }
102
103 switch(surfaceBuffer.format)
104 {
105 case AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM: format = FORMAT_A8B8G8R8; break;
106 case AHARDWAREBUFFER_FORMAT_R8G8B8X8_UNORM: format = FORMAT_X8B8G8R8; break;
107 case AHARDWAREBUFFER_FORMAT_R8G8B8_UNORM:
108 // Frame buffers are expected to have 16-bit or 32-bit colors, not 24-bit.
109 TRACE("Unsupported frame buffer format R8G8B8"); ASSERT(false);
110 format = FORMAT_R8G8B8; // Wrong component order.
111 break;
112 case AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM: format = FORMAT_R5G6B5; break;
113 default:
114 TRACE("Unsupported frame buffer format %d", surfaceBuffer.format); ASSERT(false);
115 format = FORMAT_NULL;
116 break;
117 }
118 stride = surfaceBuffer.stride * Surface::bytes(format);
119 #else // !defined(ANDROID_NDK_BUILD)
120 if(dequeueBuffer(nativeWindow, &buffer) != 0)
121 {
122 return nullptr;
123 }
124 if(GrallocModule::getInstance()->import(buffer->handle, &bufferImportedHandle) != 0) {
125 TRACE("%s failed to import buffer %p", __FUNCTION__, buffer);
126 return nullptr;
127 }
128
129 if(GrallocModule::getInstance()->lock(bufferImportedHandle,
130 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN,
131 0, 0, buffer->width, buffer->height, &framebuffer) != 0)
132 {
133 TRACE("%s failed to lock buffer %p", __FUNCTION__, buffer);
134 return nullptr;
135 }
136
137 if((buffer->width < width) || (buffer->height < height))
138 {
139 TRACE("lock failed: buffer of %dx%d too small for window of %dx%d",
140 buffer->width, buffer->height, width, height);
141 return nullptr;
142 }
143
144 switch(buffer->format)
145 {
146 case HAL_PIXEL_FORMAT_RGB_565: format = FORMAT_R5G6B5; break;
147 case HAL_PIXEL_FORMAT_RGBA_8888: format = FORMAT_A8B8G8R8; break;
148 #if ANDROID_PLATFORM_SDK_VERSION > 16
149 case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED: format = FORMAT_X8B8G8R8; break;
150 #endif
151 case HAL_PIXEL_FORMAT_RGBX_8888: format = FORMAT_X8B8G8R8; break;
152 case HAL_PIXEL_FORMAT_BGRA_8888: format = FORMAT_A8R8G8B8; break;
153 case HAL_PIXEL_FORMAT_RGB_888:
154 // Frame buffers are expected to have 16-bit or 32-bit colors, not 24-bit.
155 TRACE("Unsupported frame buffer format RGB_888"); ASSERT(false);
156 format = FORMAT_R8G8B8; // Wrong component order.
157 break;
158 default:
159 TRACE("Unsupported frame buffer format %d", buffer->format); ASSERT(false);
160 format = FORMAT_NULL;
161 break;
162 }
163 stride = buffer->stride * Surface::bytes(format);
164 #endif // !defined(ANDROID_NDK_BUILD)
165
166 return framebuffer;
167 }
168
unlock()169 void FrameBufferAndroid::unlock()
170 {
171 if(!buffer)
172 {
173 TRACE("%s: badness unlock with no active buffer", __FUNCTION__);
174 return;
175 }
176
177 framebuffer = nullptr;
178
179 #ifdef ANDROID_NDK_BUILD
180 ANativeWindow_unlockAndPost(nativeWindow);
181 #else
182 if(GrallocModule::getInstance()->unlock(bufferImportedHandle) != 0)
183 {
184 TRACE("%s: badness unlock failed", __FUNCTION__);
185 }
186 if(GrallocModule::getInstance()->release(bufferImportedHandle) != 0) {
187 TRACE("%s: badness release failed", __FUNCTION__);
188 }
189 #endif
190 }
191 }
192
createFrameBuffer(void * display,ANativeWindow * window,int width,int height)193 sw::FrameBuffer *createFrameBuffer(void *display, ANativeWindow* window, int width, int height)
194 {
195 return new sw::FrameBufferAndroid(window, width, height);
196 }
197