287 lines
9.6 KiB
C
287 lines
9.6 KiB
C
/*
|
|
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#include <assert.h>
|
|
|
|
#include "vpx_scale/yv12config.h"
|
|
#include "vpx_mem/vpx_mem.h"
|
|
#include "vpx_ports/mem.h"
|
|
|
|
/****************************************************************************
|
|
* Exports
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
*
|
|
****************************************************************************/
|
|
#define yv12_align_addr(addr, align) \
|
|
(void*)(((size_t)(addr) + ((align) - 1)) & (size_t)-(align))
|
|
|
|
int
|
|
vp8_yv12_de_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf) {
|
|
if (ybf) {
|
|
// If libvpx is using frame buffer callbacks then buffer_alloc_sz must
|
|
// not be set.
|
|
if (ybf->buffer_alloc_sz > 0) {
|
|
vpx_free(ybf->buffer_alloc);
|
|
}
|
|
|
|
/* buffer_alloc isn't accessed by most functions. Rather y_buffer,
|
|
u_buffer and v_buffer point to buffer_alloc and are used. Clear out
|
|
all of this so that a freed pointer isn't inadvertently used */
|
|
memset(ybf, 0, sizeof(YV12_BUFFER_CONFIG));
|
|
} else {
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int vp8_yv12_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
|
|
int width, int height, int border) {
|
|
if (ybf) {
|
|
int aligned_width = (width + 15) & ~15;
|
|
int aligned_height = (height + 15) & ~15;
|
|
int y_stride = ((aligned_width + 2 * border) + 31) & ~31;
|
|
int yplane_size = (aligned_height + 2 * border) * y_stride;
|
|
int uv_width = aligned_width >> 1;
|
|
int uv_height = aligned_height >> 1;
|
|
/** There is currently a bunch of code which assumes
|
|
* uv_stride == y_stride/2, so enforce this here. */
|
|
int uv_stride = y_stride >> 1;
|
|
int uvplane_size = (uv_height + border) * uv_stride;
|
|
const int frame_size = yplane_size + 2 * uvplane_size;
|
|
|
|
if (!ybf->buffer_alloc) {
|
|
ybf->buffer_alloc = (uint8_t *)vpx_memalign(32, frame_size);
|
|
ybf->buffer_alloc_sz = frame_size;
|
|
}
|
|
|
|
if (!ybf->buffer_alloc || ybf->buffer_alloc_sz < frame_size)
|
|
return -1;
|
|
|
|
/* Only support allocating buffers that have a border that's a multiple
|
|
* of 32. The border restriction is required to get 16-byte alignment of
|
|
* the start of the chroma rows without introducing an arbitrary gap
|
|
* between planes, which would break the semantics of things like
|
|
* vpx_img_set_rect(). */
|
|
if (border & 0x1f)
|
|
return -3;
|
|
|
|
ybf->y_crop_width = width;
|
|
ybf->y_crop_height = height;
|
|
ybf->y_width = aligned_width;
|
|
ybf->y_height = aligned_height;
|
|
ybf->y_stride = y_stride;
|
|
|
|
ybf->uv_crop_width = (width + 1) / 2;
|
|
ybf->uv_crop_height = (height + 1) / 2;
|
|
ybf->uv_width = uv_width;
|
|
ybf->uv_height = uv_height;
|
|
ybf->uv_stride = uv_stride;
|
|
|
|
ybf->alpha_width = 0;
|
|
ybf->alpha_height = 0;
|
|
ybf->alpha_stride = 0;
|
|
|
|
ybf->border = border;
|
|
ybf->frame_size = frame_size;
|
|
|
|
ybf->y_buffer = ybf->buffer_alloc + (border * y_stride) + border;
|
|
ybf->u_buffer = ybf->buffer_alloc + yplane_size + (border / 2 * uv_stride) + border / 2;
|
|
ybf->v_buffer = ybf->buffer_alloc + yplane_size + uvplane_size + (border / 2 * uv_stride) + border / 2;
|
|
ybf->alpha_buffer = NULL;
|
|
|
|
ybf->corrupted = 0; /* assume not currupted by errors */
|
|
return 0;
|
|
}
|
|
return -2;
|
|
}
|
|
|
|
int vp8_yv12_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
|
|
int width, int height, int border) {
|
|
if (ybf) {
|
|
vp8_yv12_de_alloc_frame_buffer(ybf);
|
|
return vp8_yv12_realloc_frame_buffer(ybf, width, height, border);
|
|
}
|
|
return -2;
|
|
}
|
|
|
|
#if CONFIG_VP9
|
|
// TODO(jkoleszar): Maybe replace this with struct vpx_image
|
|
|
|
int vpx_free_frame_buffer(YV12_BUFFER_CONFIG *ybf) {
|
|
if (ybf) {
|
|
if (ybf->buffer_alloc_sz > 0) {
|
|
vpx_free(ybf->buffer_alloc);
|
|
}
|
|
|
|
/* buffer_alloc isn't accessed by most functions. Rather y_buffer,
|
|
u_buffer and v_buffer point to buffer_alloc and are used. Clear out
|
|
all of this so that a freed pointer isn't inadvertently used */
|
|
memset(ybf, 0, sizeof(YV12_BUFFER_CONFIG));
|
|
} else {
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int vpx_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
|
|
int width, int height,
|
|
int ss_x, int ss_y,
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
int use_highbitdepth,
|
|
#endif
|
|
int border,
|
|
int byte_alignment,
|
|
vpx_codec_frame_buffer_t *fb,
|
|
vpx_get_frame_buffer_cb_fn_t cb,
|
|
void *cb_priv) {
|
|
if (ybf) {
|
|
const int vp9_byte_align = (byte_alignment == 0) ? 1 : byte_alignment;
|
|
const int aligned_width = (width + 7) & ~7;
|
|
const int aligned_height = (height + 7) & ~7;
|
|
const int y_stride = ((aligned_width + 2 * border) + 31) & ~31;
|
|
const uint64_t yplane_size = (aligned_height + 2 * border) *
|
|
(uint64_t)y_stride + byte_alignment;
|
|
const int uv_width = aligned_width >> ss_x;
|
|
const int uv_height = aligned_height >> ss_y;
|
|
const int uv_stride = y_stride >> ss_x;
|
|
const int uv_border_w = border >> ss_x;
|
|
const int uv_border_h = border >> ss_y;
|
|
const uint64_t uvplane_size = (uv_height + 2 * uv_border_h) *
|
|
(uint64_t)uv_stride + byte_alignment;
|
|
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
const uint64_t frame_size =
|
|
(1 + use_highbitdepth) * (yplane_size + 2 * uvplane_size);
|
|
#else
|
|
const uint64_t frame_size = yplane_size + 2 * uvplane_size;
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
|
|
uint8_t *buf = NULL;
|
|
|
|
if (cb != NULL) {
|
|
const int align_addr_extra_size = 31;
|
|
const uint64_t external_frame_size = frame_size + align_addr_extra_size;
|
|
|
|
assert(fb != NULL);
|
|
|
|
if (external_frame_size != (size_t)external_frame_size)
|
|
return -1;
|
|
|
|
// Allocation to hold larger frame, or first allocation.
|
|
if (cb(cb_priv, (size_t)external_frame_size, fb) < 0)
|
|
return -1;
|
|
|
|
if (fb->data == NULL || fb->size < external_frame_size)
|
|
return -1;
|
|
|
|
ybf->buffer_alloc = (uint8_t *)yv12_align_addr(fb->data, 32);
|
|
|
|
#if defined(__has_feature)
|
|
#if __has_feature(memory_sanitizer)
|
|
// This memset is needed for fixing the issue of using uninitialized
|
|
// value in msan test. It will cause a perf loss, so only do this for
|
|
// msan test.
|
|
memset(ybf->buffer_alloc, 0, (int)frame_size);
|
|
#endif
|
|
#endif
|
|
} else if (frame_size > (size_t)ybf->buffer_alloc_sz) {
|
|
// Allocation to hold larger frame, or first allocation.
|
|
vpx_free(ybf->buffer_alloc);
|
|
ybf->buffer_alloc = NULL;
|
|
|
|
if (frame_size != (size_t)frame_size)
|
|
return -1;
|
|
|
|
ybf->buffer_alloc = (uint8_t *)vpx_memalign(32, (size_t)frame_size);
|
|
if (!ybf->buffer_alloc)
|
|
return -1;
|
|
|
|
ybf->buffer_alloc_sz = (int)frame_size;
|
|
|
|
// This memset is needed for fixing valgrind error from C loop filter
|
|
// due to access uninitialized memory in frame border. It could be
|
|
// removed if border is totally removed.
|
|
memset(ybf->buffer_alloc, 0, ybf->buffer_alloc_sz);
|
|
}
|
|
|
|
/* Only support allocating buffers that have a border that's a multiple
|
|
* of 32. The border restriction is required to get 16-byte alignment of
|
|
* the start of the chroma rows without introducing an arbitrary gap
|
|
* between planes, which would break the semantics of things like
|
|
* vpx_img_set_rect(). */
|
|
if (border & 0x1f)
|
|
return -3;
|
|
|
|
ybf->y_crop_width = width;
|
|
ybf->y_crop_height = height;
|
|
ybf->y_width = aligned_width;
|
|
ybf->y_height = aligned_height;
|
|
ybf->y_stride = y_stride;
|
|
|
|
ybf->uv_crop_width = (width + ss_x) >> ss_x;
|
|
ybf->uv_crop_height = (height + ss_y) >> ss_y;
|
|
ybf->uv_width = uv_width;
|
|
ybf->uv_height = uv_height;
|
|
ybf->uv_stride = uv_stride;
|
|
|
|
ybf->border = border;
|
|
ybf->frame_size = (int)frame_size;
|
|
ybf->subsampling_x = ss_x;
|
|
ybf->subsampling_y = ss_y;
|
|
|
|
buf = ybf->buffer_alloc;
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
if (use_highbitdepth) {
|
|
// Store uint16 addresses when using 16bit framebuffers
|
|
buf = CONVERT_TO_BYTEPTR(ybf->buffer_alloc);
|
|
ybf->flags = YV12_FLAG_HIGHBITDEPTH;
|
|
} else {
|
|
ybf->flags = 0;
|
|
}
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
|
|
ybf->y_buffer = (uint8_t *)yv12_align_addr(
|
|
buf + (border * y_stride) + border, vp9_byte_align);
|
|
ybf->u_buffer = (uint8_t *)yv12_align_addr(
|
|
buf + yplane_size + (uv_border_h * uv_stride) + uv_border_w,
|
|
vp9_byte_align);
|
|
ybf->v_buffer = (uint8_t *)yv12_align_addr(
|
|
buf + yplane_size + uvplane_size + (uv_border_h * uv_stride) +
|
|
uv_border_w, vp9_byte_align);
|
|
|
|
ybf->corrupted = 0; /* assume not corrupted by errors */
|
|
return 0;
|
|
}
|
|
return -2;
|
|
}
|
|
|
|
int vpx_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
|
|
int width, int height,
|
|
int ss_x, int ss_y,
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
int use_highbitdepth,
|
|
#endif
|
|
int border,
|
|
int byte_alignment) {
|
|
if (ybf) {
|
|
vpx_free_frame_buffer(ybf);
|
|
return vpx_realloc_frame_buffer(ybf, width, height, ss_x, ss_y,
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
use_highbitdepth,
|
|
#endif
|
|
border, byte_alignment, NULL, NULL, NULL);
|
|
}
|
|
return -2;
|
|
}
|
|
#endif
|