gpu.cpp revision b166940edca6e312463461438e2aa66e9852c26a 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 * Copyright (c) 2011-2013 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#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h>
21#include <cutils/properties.h>
22#include <sys/mman.h>
23
24#include "gr.h"
25#include "gpu.h"
26#include "memalloc.h"
27#include "alloc_controller.h"
28#include <qdMetaData.h>
29#include "mdp_version.h"
30
31using namespace gralloc;
32
33#define SZ_1M 0x100000
34
35gpu_context_t::gpu_context_t(const private_module_t* module,
36                             IAllocController* alloc_ctrl ) :
37    mAllocCtrl(alloc_ctrl)
38{
39    // Zero out the alloc_device_t
40    memset(static_cast<alloc_device_t*>(this), 0, sizeof(alloc_device_t));
41
42    // Initialize the procs
43    common.tag     = HARDWARE_DEVICE_TAG;
44    common.version = 0;
45    common.module  = const_cast<hw_module_t*>(&module->base.common);
46    common.close   = gralloc_close;
47    alloc          = gralloc_alloc;
48#ifdef QCOM_BSP
49    allocSize      = gralloc_alloc_size;
50#endif
51    free           = gralloc_free;
52
53}
54
55int gpu_context_t::gralloc_alloc_buffer(size_t size, int usage,
56                                        buffer_handle_t* pHandle, int bufferType,
57                                        int format, int width, int height)
58{
59    int err = 0;
60    int flags = 0;
61    size = roundUpToPageSize(size);
62    alloc_data data;
63    data.offset = 0;
64    data.fd = -1;
65    data.base = 0;
66    if(format == HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED)
67        data.align = 8192;
68    else
69        data.align = getpagesize();
70
71    /* force 1MB alignment selectively for secure buffers, MDP5 onwards */
72    if ((qdutils::MDPVersion::getInstance().getMDPVersion() >= \
73         qdutils::MDSS_V5) && (usage & GRALLOC_USAGE_PROTECTED)) {
74        data.align = ALIGN(data.align, SZ_1M);
75        size = ALIGN(size, data.align);
76    }
77    data.size = size;
78    data.pHandle = (unsigned int) pHandle;
79    err = mAllocCtrl->allocate(data, usage);
80
81    if (!err) {
82        /* allocate memory for enhancement data */
83        alloc_data eData;
84        eData.fd = -1;
85        eData.base = 0;
86        eData.offset = 0;
87        eData.size = ROUND_UP_PAGESIZE(sizeof(MetaData_t));
88        eData.pHandle = data.pHandle;
89        eData.align = getpagesize();
90        int eDataUsage = GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP;
91        int eDataErr = mAllocCtrl->allocate(eData, eDataUsage);
92        ALOGE_IF(eDataErr, "gralloc failed for eDataErr=%s",
93                                          strerror(-eDataErr));
94
95        if (usage & GRALLOC_USAGE_PRIVATE_EXTERNAL_ONLY) {
96            flags |= private_handle_t::PRIV_FLAGS_EXTERNAL_ONLY;
97            //The EXTERNAL_BLOCK flag is always an add-on
98            if (usage & GRALLOC_USAGE_PRIVATE_EXTERNAL_BLOCK) {
99                flags |= private_handle_t::PRIV_FLAGS_EXTERNAL_BLOCK;
100            }
101            if (usage & GRALLOC_USAGE_PRIVATE_EXTERNAL_CC) {
102                flags |= private_handle_t::PRIV_FLAGS_EXTERNAL_CC;
103            }
104        }
105
106        if (bufferType == BUFFER_TYPE_VIDEO) {
107            if (usage & GRALLOC_USAGE_HW_CAMERA_WRITE) {
108                if ((qdutils::MDPVersion::getInstance().getMDPVersion() <
109                     qdutils::MDSS_V5)) { //A-Family
110                    flags |= private_handle_t::PRIV_FLAGS_ITU_R_601_FR;
111                } else {
112                    if (usage & (GRALLOC_USAGE_HW_TEXTURE |
113                                 GRALLOC_USAGE_HW_VIDEO_ENCODER))
114                        flags |= private_handle_t::PRIV_FLAGS_ITU_R_709;
115                    else if (usage & GRALLOC_USAGE_HW_CAMERA_ZSL)
116                        flags |= private_handle_t::PRIV_FLAGS_ITU_R_601_FR;
117                }
118            } else {
119                flags |= private_handle_t::PRIV_FLAGS_ITU_R_601;
120            }
121        }
122
123        if (usage & GRALLOC_USAGE_HW_VIDEO_ENCODER ) {
124            flags |= private_handle_t::PRIV_FLAGS_VIDEO_ENCODER;
125        }
126
127        if (usage & GRALLOC_USAGE_HW_CAMERA_WRITE) {
128            flags |= private_handle_t::PRIV_FLAGS_CAMERA_WRITE;
129        }
130
131        if (usage & GRALLOC_USAGE_HW_CAMERA_READ) {
132            flags |= private_handle_t::PRIV_FLAGS_CAMERA_READ;
133        }
134
135        if (usage & GRALLOC_USAGE_HW_COMPOSER) {
136            flags |= private_handle_t::PRIV_FLAGS_HW_COMPOSER;
137        }
138
139        if (usage & GRALLOC_USAGE_HW_TEXTURE) {
140            flags |= private_handle_t::PRIV_FLAGS_HW_TEXTURE;
141        }
142
143        flags |= data.allocType;
144        int eBaseAddr = int(eData.base) + eData.offset;
145        private_handle_t *hnd = new private_handle_t(data.fd, size, flags,
146                bufferType, format, width, height, eData.fd, eData.offset,
147                eBaseAddr);
148
149        hnd->offset = data.offset;
150        hnd->base = int(data.base) + data.offset;
151        hnd->gpuaddr = 0;
152
153        *pHandle = hnd;
154    }
155
156    ALOGE_IF(err, "gralloc failed err=%s", strerror(-err));
157
158    return err;
159}
160
161void gpu_context_t::getGrallocInformationFromFormat(int inputFormat,
162                                                    int *bufferType)
163{
164    *bufferType = BUFFER_TYPE_VIDEO;
165
166    if (inputFormat < 0x7) {
167        // RGB formats
168        *bufferType = BUFFER_TYPE_UI;
169    } else if ((inputFormat == HAL_PIXEL_FORMAT_R_8) ||
170               (inputFormat == HAL_PIXEL_FORMAT_RG_88)) {
171        *bufferType = BUFFER_TYPE_UI;
172    }
173}
174
175int gpu_context_t::gralloc_alloc_framebuffer_locked(size_t size, int usage,
176                                                    buffer_handle_t* pHandle)
177{
178    private_module_t* m = reinterpret_cast<private_module_t*>(common.module);
179
180    // we don't support framebuffer allocations with graphics heap flags
181    if (usage & GRALLOC_HEAP_MASK) {
182        return -EINVAL;
183    }
184
185    if (m->framebuffer == NULL) {
186        ALOGE("%s: Invalid framebuffer", __FUNCTION__);
187        return -EINVAL;
188    }
189
190    const uint32_t bufferMask = m->bufferMask;
191    const uint32_t numBuffers = m->numBuffers;
192    size_t bufferSize = m->finfo.line_length * m->info.yres;
193
194    //adreno needs FB size to be page aligned
195    bufferSize = roundUpToPageSize(bufferSize);
196
197    if (numBuffers == 1) {
198        // If we have only one buffer, we never use page-flipping. Instead,
199        // we return a regular buffer which will be memcpy'ed to the main
200        // screen when post is called.
201        int newUsage = (usage & ~GRALLOC_USAGE_HW_FB) | GRALLOC_USAGE_HW_2D;
202        return gralloc_alloc_buffer(bufferSize, newUsage, pHandle, BUFFER_TYPE_UI,
203                                    m->fbFormat, m->info.xres, m->info.yres);
204    }
205
206    if (bufferMask >= ((1LU<<numBuffers)-1)) {
207        // We ran out of buffers.
208        return -ENOMEM;
209    }
210
211    // create a "fake" handle for it
212    intptr_t vaddr = intptr_t(m->framebuffer->base);
213    private_handle_t* hnd = new private_handle_t(
214        dup(m->framebuffer->fd), bufferSize,
215        private_handle_t::PRIV_FLAGS_USES_PMEM |
216        private_handle_t::PRIV_FLAGS_FRAMEBUFFER,
217        BUFFER_TYPE_UI, m->fbFormat, m->info.xres,
218        m->info.yres);
219
220    // find a free slot
221    for (uint32_t i=0 ; i<numBuffers ; i++) {
222        if ((bufferMask & (1LU<<i)) == 0) {
223            m->bufferMask |= (1LU<<i);
224            break;
225        }
226        vaddr += bufferSize;
227    }
228    hnd->base = vaddr;
229    hnd->offset = vaddr - intptr_t(m->framebuffer->base);
230    *pHandle = hnd;
231    return 0;
232}
233
234
235int gpu_context_t::gralloc_alloc_framebuffer(size_t size, int usage,
236                                             buffer_handle_t* pHandle)
237{
238    private_module_t* m = reinterpret_cast<private_module_t*>(common.module);
239    pthread_mutex_lock(&m->lock);
240    int err = gralloc_alloc_framebuffer_locked(size, usage, pHandle);
241    pthread_mutex_unlock(&m->lock);
242    return err;
243}
244
245int gpu_context_t::alloc_impl(int w, int h, int format, int usage,
246                              buffer_handle_t* pHandle, int* pStride,
247                              size_t bufferSize) {
248    if (!pHandle || !pStride)
249        return -EINVAL;
250
251    size_t size;
252    int alignedw, alignedh;
253    int grallocFormat = format;
254    int bufferType;
255
256    //If input format is HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED then based on
257    //the usage bits, gralloc assigns a format.
258    if(format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED ||
259       format == HAL_PIXEL_FORMAT_YCbCr_420_888) {
260        if(usage & GRALLOC_USAGE_HW_VIDEO_ENCODER)
261            grallocFormat = HAL_PIXEL_FORMAT_NV12_ENCODEABLE; //NV12
262        else if(usage & GRALLOC_USAGE_HW_CAMERA_READ)
263            grallocFormat = HAL_PIXEL_FORMAT_YCrCb_420_SP; //NV21
264        else if(usage & GRALLOC_USAGE_HW_CAMERA_WRITE)
265            grallocFormat = HAL_PIXEL_FORMAT_YCrCb_420_SP; //NV21
266    }
267
268    getGrallocInformationFromFormat(grallocFormat, &bufferType);
269    size = getBufferSizeAndDimensions(w, h, grallocFormat, alignedw, alignedh);
270
271    if ((ssize_t)size <= 0)
272        return -EINVAL;
273    size = (bufferSize >= size)? bufferSize : size;
274
275    // All buffers marked as protected or for external
276    // display need to go to overlay
277    if ((usage & GRALLOC_USAGE_EXTERNAL_DISP) ||
278        (usage & GRALLOC_USAGE_PROTECTED)) {
279        bufferType = BUFFER_TYPE_VIDEO;
280    }
281
282    bool useFbMem = false;
283    char property[PROPERTY_VALUE_MAX];
284    if((usage & GRALLOC_USAGE_HW_FB) &&
285       (property_get("debug.gralloc.map_fb_memory", property, NULL) > 0) &&
286       (!strncmp(property, "1", PROPERTY_VALUE_MAX ) ||
287        (!strncasecmp(property,"true", PROPERTY_VALUE_MAX )))) {
288        useFbMem = true;
289    }
290
291    int err = 0;
292    if(useFbMem) {
293        err = gralloc_alloc_framebuffer(size, usage, pHandle);
294    } else {
295        err = gralloc_alloc_buffer(size, usage, pHandle, bufferType,
296                                   grallocFormat, alignedw, alignedh);
297    }
298
299    if (err < 0) {
300        return err;
301    }
302
303    *pStride = alignedw;
304    return 0;
305}
306
307int gpu_context_t::free_impl(private_handle_t const* hnd) {
308    private_module_t* m = reinterpret_cast<private_module_t*>(common.module);
309    if (hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER) {
310        const size_t bufferSize = m->finfo.line_length * m->info.yres;
311        int index = (hnd->base - m->framebuffer->base) / bufferSize;
312        m->bufferMask &= ~(1<<index);
313    } else {
314
315        terminateBuffer(&m->base, const_cast<private_handle_t*>(hnd));
316        IMemAlloc* memalloc = mAllocCtrl->getAllocator(hnd->flags);
317        int err = memalloc->free_buffer((void*)hnd->base, (size_t) hnd->size,
318                                        hnd->offset, hnd->fd);
319        if(err)
320            return err;
321        // free the metadata space
322        unsigned long size = ROUND_UP_PAGESIZE(sizeof(MetaData_t));
323        err = memalloc->free_buffer((void*)hnd->base_metadata,
324                                    (size_t) size, hnd->offset_metadata,
325                                    hnd->fd_metadata);
326        if (err)
327            return err;
328    }
329    delete hnd;
330    return 0;
331}
332
333int gpu_context_t::gralloc_alloc(alloc_device_t* dev, int w, int h, int format,
334                                 int usage, buffer_handle_t* pHandle,
335                                 int* pStride)
336{
337    if (!dev) {
338        return -EINVAL;
339    }
340    gpu_context_t* gpu = reinterpret_cast<gpu_context_t*>(dev);
341    return gpu->alloc_impl(w, h, format, usage, pHandle, pStride, 0);
342}
343int gpu_context_t::gralloc_alloc_size(alloc_device_t* dev, int w, int h,
344                                      int format, int usage,
345                                      buffer_handle_t* pHandle, int* pStride,
346                                      int bufferSize)
347{
348    if (!dev) {
349        return -EINVAL;
350    }
351    gpu_context_t* gpu = reinterpret_cast<gpu_context_t*>(dev);
352    return gpu->alloc_impl(w, h, format, usage, pHandle, pStride, bufferSize);
353}
354
355
356int gpu_context_t::gralloc_free(alloc_device_t* dev,
357                                buffer_handle_t handle)
358{
359    if (private_handle_t::validate(handle) < 0)
360        return -EINVAL;
361
362    private_handle_t const* hnd = reinterpret_cast<private_handle_t const*>(handle);
363    gpu_context_t* gpu = reinterpret_cast<gpu_context_t*>(dev);
364    return gpu->free_impl(hnd);
365}
366
367/*****************************************************************************/
368
369int gpu_context_t::gralloc_close(struct hw_device_t *dev)
370{
371    gpu_context_t* ctx = reinterpret_cast<gpu_context_t*>(dev);
372    if (ctx) {
373        /* TODO: keep a list of all buffer_handle_t created, and free them
374         * all here.
375         */
376        delete ctx;
377    }
378    return 0;
379}
380
381