1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 * Copyright (c) 2011-2014 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
30using namespace gralloc;
31
32#define SZ_1M 0x100000
33
34gpu_context_t::gpu_context_t(const private_module_t* module,
35                             IAllocController* alloc_ctrl ) :
36    mAllocCtrl(alloc_ctrl)
37{
38    // Zero out the alloc_device_t
39    memset(static_cast<alloc_device_t*>(this), 0, sizeof(alloc_device_t));
40
41    // Initialize the procs
42    common.tag     = HARDWARE_DEVICE_TAG;
43    common.version = 0;
44    common.module  = const_cast<hw_module_t*>(&module->base.common);
45    common.close   = gralloc_close;
46    alloc          = gralloc_alloc;
47#ifdef QCOM_BSP
48    allocSize      = gralloc_alloc_size;
49#endif
50    free           = gralloc_free;
51
52}
53
54int gpu_context_t::gralloc_alloc_buffer(unsigned int size, int usage,
55                                        buffer_handle_t* pHandle, int bufferType,
56                                        int format, int width, int height)
57{
58    int err = 0;
59    int flags = 0;
60    size = roundUpToPageSize(size);
61    alloc_data data;
62    data.offset = 0;
63    data.fd = -1;
64    data.base = 0;
65    if(format == HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED)
66        data.align = 8192;
67    else
68        data.align = getpagesize();
69
70    /* force 1MB alignment selectively for secure buffers, MDP5 onwards */
71#ifdef MDSS_TARGET
72    if ((usage & GRALLOC_USAGE_PROTECTED) &&
73        (usage & GRALLOC_USAGE_PRIVATE_MM_HEAP)) {
74        data.align = ALIGN((int) data.align, SZ_1M);
75        size = ALIGN(size, data.align);
76    }
77#endif
78
79    data.size = size;
80    data.pHandle = (uintptr_t) pHandle;
81    err = mAllocCtrl->allocate(data, usage);
82
83    if (!err) {
84        /* allocate memory for enhancement data */
85        alloc_data eData;
86        eData.fd = -1;
87        eData.base = 0;
88        eData.offset = 0;
89        eData.size = ROUND_UP_PAGESIZE(sizeof(MetaData_t));
90        eData.pHandle = data.pHandle;
91        eData.align = getpagesize();
92        int eDataUsage = GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP;
93        int eDataErr = mAllocCtrl->allocate(eData, eDataUsage);
94        ALOGE_IF(eDataErr, "gralloc failed for eDataErr=%s",
95                                          strerror(-eDataErr));
96
97        if (usage & GRALLOC_USAGE_PRIVATE_EXTERNAL_ONLY) {
98            flags |= private_handle_t::PRIV_FLAGS_EXTERNAL_ONLY;
99        }
100
101        ColorSpace_t colorSpace = ITU_R_601;
102        flags |= private_handle_t::PRIV_FLAGS_ITU_R_601;
103        if (bufferType == BUFFER_TYPE_VIDEO) {
104            if (usage & GRALLOC_USAGE_HW_CAMERA_WRITE) {
105#ifndef MDSS_TARGET
106                colorSpace = ITU_R_601_FR;
107                flags |= private_handle_t::PRIV_FLAGS_ITU_R_601_FR;
108#else
109                // Per the camera spec ITU 709 format should be set only for
110                // video encoding.
111                // It should be set to ITU 601 full range format for any other
112                // camera buffer
113                //
114                if (usage & GRALLOC_USAGE_HW_CAMERA_MASK) {
115                    if (usage & GRALLOC_USAGE_HW_VIDEO_ENCODER) {
116                        flags |= private_handle_t::PRIV_FLAGS_ITU_R_709;
117                        colorSpace = ITU_R_709;
118                    } else {
119                        flags |= private_handle_t::PRIV_FLAGS_ITU_R_601_FR;
120                        colorSpace = ITU_R_601_FR;
121                    }
122                }
123#endif
124            }
125        }
126
127        if (usage & GRALLOC_USAGE_HW_VIDEO_ENCODER ) {
128            flags |= private_handle_t::PRIV_FLAGS_VIDEO_ENCODER;
129        }
130
131        if (usage & GRALLOC_USAGE_HW_CAMERA_WRITE) {
132            flags |= private_handle_t::PRIV_FLAGS_CAMERA_WRITE;
133        }
134
135        if (usage & GRALLOC_USAGE_HW_CAMERA_READ) {
136            flags |= private_handle_t::PRIV_FLAGS_CAMERA_READ;
137        }
138
139        if (usage & GRALLOC_USAGE_HW_COMPOSER) {
140            flags |= private_handle_t::PRIV_FLAGS_HW_COMPOSER;
141        }
142
143        if (usage & GRALLOC_USAGE_HW_TEXTURE) {
144            flags |= private_handle_t::PRIV_FLAGS_HW_TEXTURE;
145        }
146
147        if(usage & GRALLOC_USAGE_PRIVATE_SECURE_DISPLAY) {
148            flags |= private_handle_t::PRIV_FLAGS_SECURE_DISPLAY;
149        }
150
151        if(isMacroTileEnabled(format, usage)) {
152            flags |= private_handle_t::PRIV_FLAGS_TILE_RENDERED;
153        }
154
155        if(usage & (GRALLOC_USAGE_SW_READ_MASK | GRALLOC_USAGE_SW_WRITE_MASK)) {
156            flags |= private_handle_t::PRIV_FLAGS_CPU_RENDERED;
157        }
158
159        flags |= data.allocType;
160        uint64_t eBaseAddr = (uint64_t)(eData.base) + eData.offset;
161        private_handle_t *hnd = new private_handle_t(data.fd, size, flags,
162                bufferType, format, width, height, eData.fd, eData.offset,
163                eBaseAddr);
164
165        hnd->offset = data.offset;
166        hnd->base = (uint64_t)(data.base) + data.offset;
167        hnd->gpuaddr = 0;
168        setMetaData(hnd, UPDATE_COLOR_SPACE, (void*) &colorSpace);
169
170        *pHandle = hnd;
171    }
172
173    ALOGE_IF(err, "gralloc failed err=%s", strerror(-err));
174
175    return err;
176}
177
178void gpu_context_t::getGrallocInformationFromFormat(int inputFormat,
179                                                    int *bufferType)
180{
181    *bufferType = BUFFER_TYPE_VIDEO;
182
183    if (inputFormat <= HAL_PIXEL_FORMAT_BGRA_8888) {
184        // RGB formats
185        *bufferType = BUFFER_TYPE_UI;
186    } else if ((inputFormat == HAL_PIXEL_FORMAT_R_8) ||
187               (inputFormat == HAL_PIXEL_FORMAT_RG_88)) {
188        *bufferType = BUFFER_TYPE_UI;
189    }
190}
191
192int gpu_context_t::gralloc_alloc_framebuffer_locked(int usage,
193                                                    buffer_handle_t* pHandle)
194{
195    private_module_t* m = reinterpret_cast<private_module_t*>(common.module);
196
197    // we don't support framebuffer allocations with graphics heap flags
198    if (usage & GRALLOC_HEAP_MASK) {
199        return -EINVAL;
200    }
201
202    if (m->framebuffer == NULL) {
203        ALOGE("%s: Invalid framebuffer", __FUNCTION__);
204        return -EINVAL;
205    }
206
207    const unsigned int bufferMask = m->bufferMask;
208    const uint32_t numBuffers = m->numBuffers;
209    unsigned int bufferSize = m->finfo.line_length * m->info.yres;
210
211    //adreno needs FB size to be page aligned
212    bufferSize = roundUpToPageSize(bufferSize);
213
214    if (numBuffers == 1) {
215        // If we have only one buffer, we never use page-flipping. Instead,
216        // we return a regular buffer which will be memcpy'ed to the main
217        // screen when post is called.
218        int newUsage = (usage & ~GRALLOC_USAGE_HW_FB) | GRALLOC_USAGE_HW_2D;
219        return gralloc_alloc_buffer(bufferSize, newUsage, pHandle, BUFFER_TYPE_UI,
220                                    m->fbFormat, m->info.xres, m->info.yres);
221    }
222
223    if (bufferMask >= ((1LU<<numBuffers)-1)) {
224        // We ran out of buffers.
225        return -ENOMEM;
226    }
227
228    // create a "fake" handle for it
229    uint64_t vaddr = uint64_t(m->framebuffer->base);
230    private_handle_t* hnd = new private_handle_t(
231        dup(m->framebuffer->fd), bufferSize,
232        private_handle_t::PRIV_FLAGS_USES_PMEM |
233        private_handle_t::PRIV_FLAGS_FRAMEBUFFER,
234        BUFFER_TYPE_UI, m->fbFormat, m->info.xres,
235        m->info.yres);
236
237    // find a free slot
238    for (uint32_t i=0 ; i<numBuffers ; i++) {
239        if ((bufferMask & (1LU<<i)) == 0) {
240            m->bufferMask |= (uint32_t)(1LU<<i);
241            break;
242        }
243        vaddr += bufferSize;
244    }
245    hnd->base = vaddr;
246    hnd->offset = (unsigned int)(vaddr - m->framebuffer->base);
247    *pHandle = hnd;
248    return 0;
249}
250
251
252int gpu_context_t::gralloc_alloc_framebuffer(int usage,
253                                             buffer_handle_t* pHandle)
254{
255    private_module_t* m = reinterpret_cast<private_module_t*>(common.module);
256    pthread_mutex_lock(&m->lock);
257    int err = gralloc_alloc_framebuffer_locked(usage, pHandle);
258    pthread_mutex_unlock(&m->lock);
259    return err;
260}
261
262int gpu_context_t::alloc_impl(int w, int h, int format, int usage,
263                              buffer_handle_t* pHandle, int* pStride,
264                              unsigned int bufferSize) {
265    if (!pHandle || !pStride)
266        return -EINVAL;
267
268    unsigned int size;
269    int alignedw, alignedh;
270    int grallocFormat = format;
271    int bufferType;
272
273    //If input format is HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED then based on
274    //the usage bits, gralloc assigns a format.
275    if(format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED ||
276       format == HAL_PIXEL_FORMAT_YCbCr_420_888) {
277        if(usage & GRALLOC_USAGE_HW_VIDEO_ENCODER)
278            grallocFormat = HAL_PIXEL_FORMAT_NV12_ENCODEABLE; //NV12
279        else if((usage & GRALLOC_USAGE_HW_CAMERA_MASK)
280                == GRALLOC_USAGE_HW_CAMERA_ZSL)
281            grallocFormat = HAL_PIXEL_FORMAT_NV21_ZSL; //NV21 ZSL
282        else if(usage & GRALLOC_USAGE_HW_CAMERA_READ)
283            grallocFormat = HAL_PIXEL_FORMAT_YCrCb_420_SP; //NV21
284        else if(usage & GRALLOC_USAGE_HW_CAMERA_WRITE)
285            grallocFormat = HAL_PIXEL_FORMAT_YCrCb_420_SP; //NV21
286        else if(usage & GRALLOC_USAGE_HW_COMPOSER)
287            //XXX: If we still haven't set a format, default to RGBA8888
288            grallocFormat = HAL_PIXEL_FORMAT_RGBA_8888;
289        else if(format == HAL_PIXEL_FORMAT_YCbCr_420_888)
290            // If no other usage flags are detected, default the flexible YUV
291            // format to NV21_ZSL.
292            grallocFormat = HAL_PIXEL_FORMAT_NV21_ZSL;
293    }
294
295    getGrallocInformationFromFormat(grallocFormat, &bufferType);
296    size = getBufferSizeAndDimensions(w, h, grallocFormat, usage, alignedw,
297                   alignedh);
298
299    if ((unsigned int)size <= 0)
300        return -EINVAL;
301    size = (bufferSize >= size)? bufferSize : size;
302
303    bool useFbMem = false;
304    char property[PROPERTY_VALUE_MAX];
305    if((usage & GRALLOC_USAGE_HW_FB) &&
306       (property_get("debug.gralloc.map_fb_memory", property, NULL) > 0) &&
307       (!strncmp(property, "1", PROPERTY_VALUE_MAX ) ||
308        (!strncasecmp(property,"true", PROPERTY_VALUE_MAX )))) {
309        useFbMem = true;
310    }
311
312    int err = 0;
313    if(useFbMem) {
314        err = gralloc_alloc_framebuffer(usage, pHandle);
315    } else {
316        err = gralloc_alloc_buffer(size, usage, pHandle, bufferType,
317                                   grallocFormat, alignedw, alignedh);
318    }
319
320    if (err < 0) {
321        return err;
322    }
323
324    *pStride = alignedw;
325    return 0;
326}
327
328int gpu_context_t::free_impl(private_handle_t const* hnd) {
329    private_module_t* m = reinterpret_cast<private_module_t*>(common.module);
330    if (hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER) {
331        const unsigned int bufferSize = m->finfo.line_length * m->info.yres;
332        unsigned int index = (unsigned int) ((hnd->base - m->framebuffer->base)
333                / bufferSize);
334        m->bufferMask &= (uint32_t)~(1LU<<index);
335    } else {
336
337        terminateBuffer(&m->base, const_cast<private_handle_t*>(hnd));
338        IMemAlloc* memalloc = mAllocCtrl->getAllocator(hnd->flags);
339        int err = memalloc->free_buffer((void*)hnd->base, hnd->size,
340                                        hnd->offset, hnd->fd);
341        if(err)
342            return err;
343        // free the metadata space
344        unsigned int size = ROUND_UP_PAGESIZE(sizeof(MetaData_t));
345        err = memalloc->free_buffer((void*)hnd->base_metadata,
346                                    size, hnd->offset_metadata,
347                                    hnd->fd_metadata);
348        if (err)
349            return err;
350    }
351    delete hnd;
352    return 0;
353}
354
355int gpu_context_t::gralloc_alloc(alloc_device_t* dev, int w, int h, int format,
356                                 int usage, buffer_handle_t* pHandle,
357                                 int* pStride)
358{
359    if (!dev) {
360        return -EINVAL;
361    }
362    gpu_context_t* gpu = reinterpret_cast<gpu_context_t*>(dev);
363    return gpu->alloc_impl(w, h, format, usage, pHandle, pStride, 0);
364}
365int gpu_context_t::gralloc_alloc_size(alloc_device_t* dev, int w, int h,
366                                      int format, int usage,
367                                      buffer_handle_t* pHandle, int* pStride,
368                                      int bufferSize)
369{
370    if (!dev) {
371        return -EINVAL;
372    }
373    gpu_context_t* gpu = reinterpret_cast<gpu_context_t*>(dev);
374    return gpu->alloc_impl(w, h, format, usage, pHandle, pStride, bufferSize);
375}
376
377
378int gpu_context_t::gralloc_free(alloc_device_t* dev,
379                                buffer_handle_t handle)
380{
381    if (private_handle_t::validate(handle) < 0)
382        return -EINVAL;
383
384    private_handle_t const* hnd = reinterpret_cast<private_handle_t const*>(handle);
385    gpu_context_t* gpu = reinterpret_cast<gpu_context_t*>(dev);
386    return gpu->free_impl(hnd);
387}
388
389/*****************************************************************************/
390
391int gpu_context_t::gralloc_close(struct hw_device_t *dev)
392{
393    gpu_context_t* ctx = reinterpret_cast<gpu_context_t*>(dev);
394    if (ctx) {
395        /* TODO: keep a list of all buffer_handle_t created, and free them
396         * all here.
397         */
398        delete ctx;
399    }
400    return 0;
401}
402