1 /*
2 * Copyright (C) 2008 The Android Open Source Project
3 * Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 #ifndef GR_H_
19 #define GR_H_
20
21 #include <stdint.h>
22 #include <limits.h>
23 #include <sys/cdefs.h>
24 #include <hardware/gralloc.h>
25 #include <pthread.h>
26 #include <errno.h>
27
28 #include <cutils/native_handle.h>
29 #include <utils/Singleton.h>
30
31 /*****************************************************************************/
32
33 struct private_module_t;
34 struct private_handle_t;
35
roundUpToPageSize(size_t x)36 inline size_t roundUpToPageSize(size_t x) {
37 return (x + (PAGE_SIZE-1)) & ~(PAGE_SIZE-1);
38 }
39
40 template <class Type>
ALIGN(Type x,Type align)41 inline Type ALIGN(Type x, Type align) {
42 return (x + align-1) & ~(align-1);
43 }
44
45 #define FALSE 0
46 #define TRUE 1
47
48 int mapFrameBufferLocked(struct private_module_t* module);
49 int terminateBuffer(gralloc_module_t const* module, private_handle_t* hnd);
50 size_t getBufferSizeAndDimensions(int width, int height, int format, int usage,
51 int& alignedw, int &alignedh);
52 size_t getBufferSizeAndDimensions(int width, int height, int format,
53 int& alignedw, int &alignedh);
54
55
56 // Attributes include aligned width, aligned height, tileEnabled and size of the buffer
57 void getBufferAttributes(int width, int height, int format, int usage,
58 int& alignedw, int &alignedh,
59 int& tileEnabled, size_t &size);
60
61
62 bool isMacroTileEnabled(int format, int usage);
63
64 int decideBufferHandlingMechanism(int format, const char *compositionUsed,
65 int hasBlitEngine, int *needConversion,
66 int *useBufferDirectly);
67
68 // Allocate buffer from width, height, format into a private_handle_t
69 // It is the responsibility of the caller to free the buffer
70 int alloc_buffer(private_handle_t **pHnd, int w, int h, int format, int usage);
71 void free_buffer(private_handle_t *hnd);
72 int getYUVPlaneInfo(private_handle_t* pHnd, struct android_ycbcr* ycbcr);
73
74 /*****************************************************************************/
75
76 class Locker {
77 pthread_mutex_t mutex;
78 pthread_cond_t cond;
79 public:
80 class Autolock {
81 Locker& locker;
82 public:
Autolock(Locker & locker)83 inline Autolock(Locker& locker) : locker(locker) { locker.lock(); }
~Autolock()84 inline ~Autolock() { locker.unlock(); }
85 };
Locker()86 inline Locker() {
87 pthread_mutex_init(&mutex, 0);
88 pthread_cond_init(&cond, 0);
89 }
~Locker()90 inline ~Locker() {
91 pthread_mutex_destroy(&mutex);
92 pthread_cond_destroy(&cond);
93 }
lock()94 inline void lock() { pthread_mutex_lock(&mutex); }
wait()95 inline void wait() { pthread_cond_wait(&cond, &mutex); }
unlock()96 inline void unlock() { pthread_mutex_unlock(&mutex); }
signal()97 inline void signal() { pthread_cond_signal(&cond); }
98 };
99
100
101 class AdrenoMemInfo : public android::Singleton <AdrenoMemInfo>
102 {
103 public:
104 AdrenoMemInfo();
105
106 ~AdrenoMemInfo();
107
108 /*
109 * Function to compute the adreno aligned width and aligned height
110 * based on the width and format.
111 *
112 * @return aligned width, aligned height
113 */
114 void getAlignedWidthAndHeight(int width, int height, int format,
115 int tileEnabled, int& alignedw, int &alignedh);
116
117 /*
118 * Function to return whether GPU support MacroTile feature
119 *
120 * @return >0 : supported
121 * 0 : not supported
122 */
123 int isMacroTilingSupportedByGPU();
124
125 private:
126 // Pointer to the padding library.
127 void *libadreno_utils;
128
129 // link(s)to adreno surface padding library.
130 int (*LINK_adreno_compute_padding) (int width, int bpp,
131 int surface_tile_height,
132 int screen_tile_height,
133 int padding_threshold);
134
135 void (*LINK_adreno_compute_aligned_width_and_height) (int width,
136 int height,
137 int bpp,
138 int tile_mode,
139 int raster_mode,
140 int padding_threshold,
141 int *aligned_w,
142 int *aligned_h);
143
144 int (*LINK_adreno_isMacroTilingSupportedByGpu) (void);
145
146 void(*LINK_adreno_compute_compressedfmt_aligned_width_and_height)(
147 int width,
148 int height,
149 int format,
150 int tile_mode,
151 int raster_mode,
152 int padding_threshold,
153 int *aligned_w,
154 int *aligned_h,
155 int *bpp);
156 };
157 #endif /* GR_H_ */
158