mirrors/wlroots
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/wlroots/wlroots.git synced 2026-04-18 06:47:31 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

render/vulkan: use VK_EXT_external_memory_host for uploads

Browse source 
This allows the Vulkan driver to directly access client buffers.

References: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3264
This commit is contained in:
Simon Ser 2023-08-23 20:22:40 +02:00
parent 4565b07484
commit edc2f7222a
3 changed files with 172 additions and 30 deletions
Download patch file Download diff file Expand all files Collapse all files

167
render/vulkan/texture.c
View file

@ -368,12 +368,95 @@ static void texture_set_format(struct wlr_vk_texture *texture,
}
}
static struct wlr_texture *vulkan_texture_from_pixels(
struct wlr_vk_renderer *renderer, uint32_t drm_fmt, uint32_t stride,
uint32_t width, uint32_t height, const void *data) {
static VkBuffer create_ext_host_mem_buffer(struct wlr_vk_renderer *renderer,
const void *host_ptr, size_t size) {
VkResult res;
VkDevice dev = renderer->dev->dev;
// TODO: drop this hack
size_t remainder = size % 4096;
if (remainder != 0) {
size += 4096 - remainder;
}
VkExternalMemoryHandleTypeFlagBits handle_type =
VK_EXTERNAL_MEMORY_HANDLE_TYPE_HOST_ALLOCATION_BIT_EXT;
VkMemoryHostPointerPropertiesEXT host_ptr_props = {
.sType = VK_STRUCTURE_TYPE_MEMORY_HOST_POINTER_PROPERTIES_EXT,
};
res = renderer->dev->api.vkGetMemoryHostPointerPropertiesEXT(dev, handle_type,
host_ptr, &host_ptr_props);
if (res != VK_SUCCESS) {
wlr_vk_error("vkGetMemoryHostPointerPropertiesEXT failed", res);
return VK_NULL_HANDLE;
}
VkExternalMemoryBufferCreateInfo ext_buffer_info = {
.sType = VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_BUFFER_CREATE_INFO,
.handleTypes = handle_type,
};
VkBufferCreateInfo buffer_info = {
.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
.pNext = &ext_buffer_info,
.size = size,
.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
.sharingMode = VK_SHARING_MODE_EXCLUSIVE,
};
VkBuffer host_buffer;
res = vkCreateBuffer(dev, &buffer_info, NULL, &host_buffer);
if (res != VK_SUCCESS) {
wlr_vk_error("vkCreateBuffer failed", res);
return VK_NULL_HANDLE;
}
VkMemoryRequirements mem_reqs = {0};
vkGetBufferMemoryRequirements(dev, host_buffer, &mem_reqs);
int mem_type_index = vulkan_find_mem_type(renderer->dev, 0,
mem_reqs.memoryTypeBits & host_ptr_props.memoryTypeBits);
if (mem_type_index == -1) {
wlr_log(WLR_ERROR, "Failed to find suitable Vulkan memory type");
return VK_NULL_HANDLE;
}
VkImportMemoryHostPointerInfoEXT import_info = {
.sType = VK_STRUCTURE_TYPE_IMPORT_MEMORY_HOST_POINTER_INFO_EXT,
.handleType = handle_type,
.pHostPointer = (void *)host_ptr,
};
VkMemoryAllocateInfo mem_alloc = {
.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
.pNext = &import_info,
.allocationSize = size,
.memoryTypeIndex = mem_type_index,
};
VkDeviceMemory memory;
res = vkAllocateMemory(dev, &mem_alloc, NULL, &memory);
if (res != VK_SUCCESS) {
wlr_vk_error("vkAllocateMemory failed", res);
return VK_NULL_HANDLE;
}
res = vkBindBufferMemory(dev, host_buffer, memory, 0);
if (res != VK_SUCCESS) {
wlr_vk_error("vkBindBufferMemory", res);
return VK_NULL_HANDLE;
}
return host_buffer;
}
static struct wlr_texture *vulkan_texture_from_pixels(
struct wlr_vk_renderer *renderer, struct wlr_buffer *buffer,
uint32_t drm_fmt, uint32_t stride, const void *data) {
VkResult res;
VkDevice dev = renderer->dev->dev;
uint32_t width = buffer->width;
uint32_t height = buffer->height;
const struct wlr_vk_format_props *fmt =
vulkan_format_props_from_drm(renderer->dev, drm_fmt);
if (fmt == NULL || fmt->format.is_ycbcr) {
@ -381,12 +464,12 @@ static struct wlr_texture *vulkan_texture_from_pixels(
wlr_log(WLR_ERROR, "Unsupported pixel format %s (0x%08"PRIX32")",
format_name, drm_fmt);
free(format_name);
return NULL;
goto error_access;
}
struct wlr_vk_texture *texture = vulkan_texture_create(renderer, width, height);
if (texture == NULL) {
return NULL;
goto error_access;
}
texture_set_format(texture, &fmt->format);
@ -408,7 +491,7 @@ static struct wlr_texture *vulkan_texture_from_pixels(
res = vkCreateImage(dev, &img_info, NULL, &texture->image);
if (res != VK_SUCCESS) {
wlr_vk_error("vkCreateImage failed", res);
goto error;
goto error_texture;
}
VkMemoryRequirements mem_reqs;
@ -418,7 +501,7 @@ static struct wlr_texture *vulkan_texture_from_pixels(
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, mem_reqs.memoryTypeBits);
if (mem_type_index == -1) {
wlr_log(WLR_ERROR, "failed to find suitable vulkan memory type");
goto error;
goto error_texture;
}
VkMemoryAllocateInfo mem_info = {
@ -430,27 +513,76 @@ static struct wlr_texture *vulkan_texture_from_pixels(
res = vkAllocateMemory(dev, &mem_info, NULL, &texture->memories[0]);
if (res != VK_SUCCESS) {
wlr_vk_error("vkAllocatorMemory failed", res);
goto error;
goto error_texture;
}
texture->mem_count = 1;
res = vkBindImageMemory(dev, texture->image, texture->memories[0], 0);
if (res != VK_SUCCESS) {
wlr_vk_error("vkBindMemory failed", res);
goto error;
goto error_texture;
}
pixman_region32_t region;
pixman_region32_init_rect(&region, 0, 0, width, height);
if (!write_pixels(texture, stride, &region, data, VK_IMAGE_LAYOUT_UNDEFINED,
VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, 0)) {
goto error;
VkBuffer host_buffer = VK_NULL_HANDLE;
if (renderer->dev->api.vkGetMemoryHostPointerPropertiesEXT) {
host_buffer = create_ext_host_mem_buffer(renderer, data, stride * height);
}
bool ok;
if (host_buffer != VK_NULL_HANDLE) {
VkCommandBuffer cb = vulkan_record_stage_cb(renderer);
if (cb == VK_NULL_HANDLE) {
goto error_texture;
}
VkImageLayout old_layout = VK_IMAGE_LAYOUT_UNDEFINED;
VkPipelineStageFlags src_stage = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
VkAccessFlags src_access = 0;
vulkan_change_layout(cb, texture->image,
old_layout, src_stage, src_access,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_ACCESS_TRANSFER_WRITE_BIT);
VkBufferImageCopy copy = {
.imageExtent.width = width,
.imageExtent.height = height,
.imageExtent.depth = 1,
.bufferRowLength = width,
.bufferImageHeight = height,
.imageSubresource.mipLevel = 0,
.imageSubresource.baseArrayLayer = 0,
.imageSubresource.layerCount = 1,
.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
};
vkCmdCopyBufferToImage(cb, host_buffer, texture->image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, &copy);
vulkan_change_layout(cb, texture->image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_ACCESS_TRANSFER_WRITE_BIT,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
VK_PIPELINE_STAGE_ALL_GRAPHICS_BIT, VK_ACCESS_SHADER_READ_BIT);
texture->last_used_cb = renderer->stage.cb;
wlr_buffer_end_data_ptr_access(buffer); // TODO
ok = true;
} else {
pixman_region32_t region;
pixman_region32_init_rect(&region, 0, 0, width, height);
ok = write_pixels(texture, stride, &region, data, VK_IMAGE_LAYOUT_UNDEFINED,
VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, 0);
wlr_buffer_end_data_ptr_access(buffer);
}
if (!ok) {
goto error_texture;
}
return &texture->wlr_texture;
error:
error_texture:
vulkan_texture_destroy(texture);
error_access:
wlr_buffer_end_data_ptr_access(buffer);
return NULL;
}
@ -779,10 +911,7 @@ struct wlr_texture *vulkan_texture_from_buffer(struct wlr_renderer *wlr_renderer
return vulkan_texture_from_dmabuf_buffer(renderer, buffer, &dmabuf);
} else if (wlr_buffer_begin_data_ptr_access(buffer,
WLR_BUFFER_DATA_PTR_ACCESS_READ, &data, &format, &stride)) {
struct wlr_texture *tex = vulkan_texture_from_pixels(renderer,
format, stride, buffer->width, buffer->height, data);
wlr_buffer_end_data_ptr_access(buffer);
return tex;
return vulkan_texture_from_pixels(renderer, buffer, format, stride, data);
} else {
return NULL;
}