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vulkan: Add function to upload data to a staging buffer

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columbarius 2023-09-24 20:36:02 +02:00 • committed by Wim Taymans
parent 36aa413cd7
commit 7ffd8ff4de
2 changed files with 43 additions and 0 deletions
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32
spa/plugins/vulkan/vulkan-utils.c
View file

@ -233,6 +233,38 @@ static int createDevice(struct vulkan_base *s, struct vulkan_base_info *info)
return 0;
}
int vulkan_write_pixels(struct vulkan_base *s, struct vulkan_write_pixels_info *info, struct vulkan_staging_buffer *vk_sbuf)
{
void *vmap;
VK_CHECK_RESULT(vkMapMemory(s->device, vk_sbuf->memory, 0, VK_WHOLE_SIZE, 0, &vmap));
char *map = (char *)vmap;
// upload data
const char *pdata = info->data;
memcpy(map, pdata, info->stride * info->size.height);
info->copies[0] = (VkBufferImageCopy) {
.imageExtent.width = info->size.width,
.imageExtent.height = info->size.height,
.imageExtent.depth = 1,
.imageOffset.x = 0,
.imageOffset.y = 0,
.imageOffset.z = 0,
.bufferOffset = 0,
.bufferRowLength = info->size.width,
.bufferImageHeight = info->size.height,
.imageSubresource.mipLevel = 0,
.imageSubresource.baseArrayLayer = 0,
.imageSubresource.layerCount = 1,
.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
};
vkUnmapMemory(s->device, vk_sbuf->memory);
return 0;
}
int vulkan_read_pixels(struct vulkan_base *s, struct vulkan_read_pixels_info *info, struct vulkan_buffer *vk_buf)
{
VkImageSubresource img_sub_res = {

11
spa/plugins/vulkan/vulkan-utils.h
View file

@ -46,6 +46,16 @@
return _res; \
}
struct vulkan_write_pixels_info {
struct spa_rectangle size;
uint32_t offset;
uint32_t stride;
uint32_t bytes_per_pixel;
VkBufferImageCopy *copies;
void *data;
};
struct vulkan_read_pixels_info {
struct spa_rectangle size;
void *data;
@ -70,6 +80,7 @@ struct external_buffer_info {
struct spa_buffer *spa_buf;
};
int vulkan_write_pixels(struct vulkan_base *s, struct vulkan_write_pixels_info *info, struct vulkan_staging_buffer *vk_sbuf);
int vulkan_read_pixels(struct vulkan_base *s, struct vulkan_read_pixels_info *info, struct vulkan_buffer *vk_buf);
int vulkan_sync_foreign_dmabuf(struct vulkan_base *s, struct vulkan_buffer *vk_buf);