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hwcontext_vulkan: add support for mapping frames with planes in a single VkDeviceMemory 

Add support to map vulkan frames to software frames when
using contiguous_planes flag.

Signed-off-by: Wenbin Chen <wenbin.chen@intel.com>
Further-modifications-by: Lynne <dev@lynne.ee>
This commit is contained in:
Wenbin Chen 2021-12-07 17:05:52 +08:00 committed by Lynne
parent bd6ef73399
commit 0d524b170e
1 changed files with 9 additions and 2 deletions
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11
libavutil/hwcontext_vulkan.c
View File

@ -2332,9 +2332,10 @@ static int vulkan_map_frame_to_mem(AVHWFramesContext *hwfc, AVFrame *dst,
const AVFrame *src, int flags)
{
VkResult ret;
int err, mapped_mem_count = 0;
int err, mapped_mem_count = 0, mem_planes = 0;
AVVkFrame *f = (AVVkFrame *)src->data[0];
AVVulkanDeviceContext *hwctx = hwfc->device_ctx->hwctx;
AVVulkanFramesContext *hwfctx = hwfc->hwctx;
const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
FFVulkanFunctions *vk = &p->vkfn;
@ -2361,7 +2362,8 @@ static int vulkan_map_frame_to_mem(AVHWFramesContext *hwfc, AVFrame *dst,
dst->width = src->width;
dst->height = src->height;
for (int i = 0; i < planes; i++) {
mem_planes = hwfctx->flags & AV_VK_FRAME_FLAG_CONTIGUOUS_MEMORY ? 1 : planes;
for (int i = 0; i < mem_planes; i++) {
ret = vk->MapMemory(hwctx->act_dev, f->mem[i], 0,
VK_WHOLE_SIZE, 0, (void **)&dst->data[i]);
if (ret != VK_SUCCESS) {
@ -2373,6 +2375,11 @@ static int vulkan_map_frame_to_mem(AVHWFramesContext *hwfc, AVFrame *dst,
mapped_mem_count++;
}
if (hwfctx->flags & AV_VK_FRAME_FLAG_CONTIGUOUS_MEMORY) {
for (int i = 0; i < planes; i++)
dst->data[i] = dst->data[0] + f->offset[i];
}
/* Check if the memory contents matter */
if (((flags & AV_HWFRAME_MAP_READ) || !(flags & AV_HWFRAME_MAP_OVERWRITE)) &&
!(f->flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)) {