wlroots-hyprland/render/vulkan/texture.c

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#define _POSIX_C_SOURCE 200809L
#include <assert.h>
#include <fcntl.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
#include <wlr/render/wlr_texture.h>
#include <wlr/render/vulkan.h>
#include <wlr/util/log.h>
#include "render/pixel_format.h"
#include "render/vulkan.h"
static const struct wlr_texture_impl texture_impl;
bool wlr_texture_is_vk(struct wlr_texture *wlr_texture) {
return wlr_texture->impl == &texture_impl;
}
struct wlr_vk_texture *vulkan_get_texture(struct wlr_texture *wlr_texture) {
assert(wlr_texture_is_vk(wlr_texture));
return (struct wlr_vk_texture *)wlr_texture;
}
static VkImageAspectFlagBits mem_plane_aspect(unsigned i) {
switch (i) {
case 0: return VK_IMAGE_ASPECT_MEMORY_PLANE_0_BIT_EXT;
case 1: return VK_IMAGE_ASPECT_MEMORY_PLANE_1_BIT_EXT;
case 2: return VK_IMAGE_ASPECT_MEMORY_PLANE_2_BIT_EXT;
case 3: return VK_IMAGE_ASPECT_MEMORY_PLANE_3_BIT_EXT;
default: abort(); // unreachable
}
}
// Will transition the texture to shaderReadOnlyOptimal layout for reading
// from fragment shader later on
static bool write_pixels(struct wlr_vk_texture *texture,
uint32_t stride, const pixman_region32_t *region, const void *vdata,
VkImageLayout old_layout, VkPipelineStageFlags src_stage,
VkAccessFlags src_access) {
VkResult res;
struct wlr_vk_renderer *renderer = texture->renderer;
VkDevice dev = texture->renderer->dev->dev;
const struct wlr_pixel_format_info *format_info = drm_get_pixel_format_info(texture->format->drm);
assert(format_info);
uint32_t bsize = 0;
unsigned bytespb = format_info->bpp / 8;
// deferred upload by transfer; using staging buffer
// calculate maximum side needed
int rects_len = 0;
const pixman_box32_t *rects = pixman_region32_rectangles(region, &rects_len);
for (int i = 0; i < rects_len; i++) {
pixman_box32_t rect = rects[i];
uint32_t width = rect.x2 - rect.x1;
uint32_t height = rect.y2 - rect.y1;
// make sure assumptions are met
assert((uint32_t)rect.x2 <= texture->wlr_texture.width);
assert((uint32_t)rect.y2 <= texture->wlr_texture.height);
bsize += height * bytespb * width;
}
VkBufferImageCopy *copies = calloc((size_t)rects_len, sizeof(*copies));
if (!copies) {
wlr_log(WLR_ERROR, "Failed to allocate image copy parameters");
return false;
}
// get staging buffer
struct wlr_vk_buffer_span span = vulkan_get_stage_span(renderer, bsize, bytespb);
if (!span.buffer || span.alloc.size != bsize) {
wlr_log(WLR_ERROR, "Failed to retrieve staging buffer");
free(copies);
return false;
}
void *vmap;
res = vkMapMemory(dev, span.buffer->memory, span.alloc.start,
bsize, 0, &vmap);
if (res != VK_SUCCESS) {
wlr_vk_error("vkMapMemory", res);
free(copies);
return false;
}
char *map = (char *)vmap;
// upload data
uint32_t buf_off = span.alloc.start + (map - (char *)vmap);
for (int i = 0; i < rects_len; i++) {
pixman_box32_t rect = rects[i];
uint32_t width = rect.x2 - rect.x1;
uint32_t height = rect.y2 - rect.y1;
uint32_t src_x = rect.x1;
uint32_t src_y = rect.y1;
uint32_t packed_stride = bytespb * width;
// write data into staging buffer span
const char *pdata = vdata; // data iterator
pdata += stride * src_y;
pdata += bytespb * src_x;
if (src_x == 0 && width == texture->wlr_texture.width &&
stride == packed_stride) {
memcpy(map, pdata, packed_stride * height);
map += packed_stride * height;
} else {
for (unsigned i = 0u; i < height; ++i) {
memcpy(map, pdata, packed_stride);
pdata += stride;
map += packed_stride;
}
}
copies[i] = (VkBufferImageCopy) {
.imageExtent.width = width,
.imageExtent.height = height,
.imageExtent.depth = 1,
.imageOffset.x = src_x,
.imageOffset.y = src_y,
.imageOffset.z = 0,
.bufferOffset = buf_off,
.bufferRowLength = width,
.bufferImageHeight = height,
.imageSubresource.mipLevel = 0,
.imageSubresource.baseArrayLayer = 0,
.imageSubresource.layerCount = 1,
.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
};
buf_off += height * packed_stride;
}
assert((uint32_t)(map - (char *)vmap) == bsize);
vkUnmapMemory(dev, span.buffer->memory);
// record staging cb
// will be executed before next frame
VkCommandBuffer cb = vulkan_record_stage_cb(renderer);
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);
vkCmdCopyBufferToImage(cb, span.buffer->buffer, texture->image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, (uint32_t)rects_len, copies);
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;
free(copies);
return true;
}
static bool vulkan_texture_update_from_buffer(struct wlr_texture *wlr_texture,
struct wlr_buffer *buffer, const pixman_region32_t *damage) {
struct wlr_vk_texture *texture = vulkan_get_texture(wlr_texture);
void *data;
uint32_t format;
size_t stride;
if (!wlr_buffer_begin_data_ptr_access(buffer,
WLR_BUFFER_DATA_PTR_ACCESS_READ, &data, &format, &stride)) {
return false;
}
bool ok = true;
if (format != texture->format->drm) {
ok = false;
goto out;
}
ok = write_pixels(texture, stride, damage, data, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, VK_ACCESS_SHADER_READ_BIT);
out:
wlr_buffer_end_data_ptr_access(buffer);
return ok;
}
void vulkan_texture_destroy(struct wlr_vk_texture *texture) {
if (!texture->renderer) {
free(texture);
return;
}
// when we recorded a command to fill this image _this_ frame,
// it has to be executed before the texture can be destroyed.
// Add it to the renderer->destroy_textures list, destroying
// _after_ the stage command buffer has exectued
if (texture->last_used_cb != NULL) {
assert(texture->destroy_link.next == NULL); // not already inserted
wl_list_insert(&texture->last_used_cb->destroy_textures,
&texture->destroy_link);
return;
}
wl_list_remove(&texture->link);
if (texture->buffer != NULL) {
wlr_addon_finish(&texture->buffer_addon);
}
VkDevice dev = texture->renderer->dev->dev;
if (texture->ds && texture->ds_pool) {
vulkan_free_ds(texture->renderer, texture->ds_pool, texture->ds);
}
for (size_t i = 0; i < WLR_DMABUF_MAX_PLANES; i++) {
if (texture->foreign_semaphores[i] != VK_NULL_HANDLE) {
vkDestroySemaphore(dev, texture->foreign_semaphores[i], NULL);
}
}
vkDestroyImageView(dev, texture->image_view, NULL);
vkDestroyImage(dev, texture->image, NULL);
for (unsigned i = 0u; i < texture->mem_count; ++i) {
vkFreeMemory(dev, texture->memories[i], NULL);
}
free(texture);
}
static void vulkan_texture_unref(struct wlr_texture *wlr_texture) {
struct wlr_vk_texture *texture = vulkan_get_texture(wlr_texture);
if (texture->buffer != NULL) {
// Keep the texture around, in case the buffer is re-used later. We're
// still listening to the buffer's destroy event.
wlr_buffer_unlock(texture->buffer);
} else {
vulkan_texture_destroy(texture);
}
}
static const struct wlr_texture_impl texture_impl = {
.update_from_buffer = vulkan_texture_update_from_buffer,
.destroy = vulkan_texture_unref,
};
static struct wlr_vk_texture *vulkan_texture_create(
struct wlr_vk_renderer *renderer, uint32_t width, uint32_t height) {
struct wlr_vk_texture *texture =
calloc(1, sizeof(struct wlr_vk_texture));
if (texture == NULL) {
wlr_log_errno(WLR_ERROR, "Allocation failed");
return NULL;
}
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wlr_texture_init(&texture->wlr_texture, &renderer->wlr_renderer,
&texture_impl, width, height);
texture->renderer = renderer;
wl_list_insert(&renderer->textures, &texture->link);
return 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) {
VkResult res;
VkDevice dev = renderer->dev->dev;
wlr_log(WLR_DEBUG, "vulkan_texture_from_pixels: %.4s, %dx%d",
(const char*) &drm_fmt, width, height);
const struct wlr_vk_format_props *fmt =
vulkan_format_props_from_drm(renderer->dev, drm_fmt);
if (fmt == NULL) {
wlr_log(WLR_ERROR, "Unsupported pixel format %"PRIx32 " (%.4s)",
drm_fmt, (const char*) &drm_fmt);
return NULL;
}
struct wlr_vk_texture *texture = vulkan_texture_create(renderer, width, height);
if (texture == NULL) {
return NULL;
}
texture->format = &fmt->format;
// create image
VkImageCreateInfo img_info = {
.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
.imageType = VK_IMAGE_TYPE_2D,
.format = texture->format->vk,
.mipLevels = 1,
.arrayLayers = 1,
.samples = VK_SAMPLE_COUNT_1_BIT,
.sharingMode = VK_SHARING_MODE_EXCLUSIVE,
.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
.extent = (VkExtent3D) { width, height, 1 },
.tiling = VK_IMAGE_TILING_OPTIMAL,
.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT,
};
res = vkCreateImage(dev, &img_info, NULL, &texture->image);
if (res != VK_SUCCESS) {
wlr_vk_error("vkCreateImage failed", res);
goto error;
}
// memory
VkMemoryRequirements mem_reqs;
vkGetImageMemoryRequirements(dev, texture->image, &mem_reqs);
int mem_type_index = vulkan_find_mem_type(renderer->dev,
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;
}
VkMemoryAllocateInfo mem_info = {
.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
.allocationSize = mem_reqs.size,
.memoryTypeIndex = mem_type_index,
};
res = vkAllocateMemory(dev, &mem_info, NULL, &texture->memories[0]);
if (res != VK_SUCCESS) {
wlr_vk_error("vkAllocatorMemory failed", res);
goto error;
}
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;
}
const struct wlr_pixel_format_info *format_info = drm_get_pixel_format_info(drm_fmt);
assert(format_info);
texture->has_alpha = format_info->has_alpha;
// view
VkImageViewCreateInfo view_info = {
.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
.viewType = VK_IMAGE_VIEW_TYPE_2D,
.format = texture->format->vk,
.components.r = VK_COMPONENT_SWIZZLE_IDENTITY,
.components.g = VK_COMPONENT_SWIZZLE_IDENTITY,
.components.b = VK_COMPONENT_SWIZZLE_IDENTITY,
.components.a = texture->has_alpha
? VK_COMPONENT_SWIZZLE_IDENTITY
: VK_COMPONENT_SWIZZLE_ONE,
.subresourceRange = (VkImageSubresourceRange) {
.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
.baseMipLevel = 0,
.levelCount = 1,
.baseArrayLayer = 0,
.layerCount = 1,
},
.image = texture->image,
};
res = vkCreateImageView(dev, &view_info, NULL,
&texture->image_view);
if (res != VK_SUCCESS) {
wlr_vk_error("vkCreateImageView failed", res);
goto error;
}
// descriptor
texture->ds_pool = vulkan_alloc_texture_ds(renderer, &texture->ds);
if (!texture->ds_pool) {
wlr_log(WLR_ERROR, "failed to allocate descriptor");
goto error;
}
VkDescriptorImageInfo ds_img_info = {
.imageView = texture->image_view,
.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
};
VkWriteDescriptorSet ds_write = {
.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
.descriptorCount = 1,
.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
.dstSet = texture->ds,
.pImageInfo = &ds_img_info,
};
vkUpdateDescriptorSets(dev, 1, &ds_write, 0, NULL);
// write data
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;
}
return &texture->wlr_texture;
error:
vulkan_texture_destroy(texture);
return NULL;
}
static bool is_dmabuf_disjoint(const struct wlr_dmabuf_attributes *attribs) {
if (attribs->n_planes == 1) {
return false;
}
struct stat first_stat;
if (fstat(attribs->fd[0], &first_stat) != 0) {
wlr_log_errno(WLR_ERROR, "fstat failed");
return true;
}
for (int i = 1; i < attribs->n_planes; i++) {
struct stat plane_stat;
if (fstat(attribs->fd[i], &plane_stat) != 0) {
wlr_log_errno(WLR_ERROR, "fstat failed");
return true;
}
if (first_stat.st_ino != plane_stat.st_ino) {
return true;
}
}
return false;
}
VkImage vulkan_import_dmabuf(struct wlr_vk_renderer *renderer,
const struct wlr_dmabuf_attributes *attribs,
VkDeviceMemory mems[static WLR_DMABUF_MAX_PLANES], uint32_t *n_mems,
bool for_render) {
VkResult res;
VkDevice dev = renderer->dev->dev;
*n_mems = 0u;
wlr_log(WLR_DEBUG, "vulkan_import_dmabuf: %.4s (mod %"PRIx64"), %dx%d, %d planes",
(const char *)&attribs->format, attribs->modifier,
attribs->width, attribs->height, attribs->n_planes);
struct wlr_vk_format_props *fmt = vulkan_format_props_from_drm(renderer->dev,
attribs->format);
if (fmt == NULL) {
wlr_log(WLR_ERROR, "Unsupported pixel format %"PRIx32 " (%.4s)",
attribs->format, (const char*) &attribs->format);
return VK_NULL_HANDLE;
}
uint32_t plane_count = attribs->n_planes;
assert(plane_count < WLR_DMABUF_MAX_PLANES);
const struct wlr_vk_format_modifier_props *mod =
vulkan_format_props_find_modifier(fmt, attribs->modifier, for_render);
if (!mod) {
wlr_log(WLR_ERROR, "Format %"PRIx32" (%.4s) can't be used with modifier "
"%"PRIx64, attribs->format, (const char*) &attribs->format,
attribs->modifier);
return VK_NULL_HANDLE;
}
if ((uint32_t) attribs->width > mod->max_extent.width ||
(uint32_t) attribs->height > mod->max_extent.height) {
wlr_log(WLR_ERROR, "dmabuf is too large to import");
return VK_NULL_HANDLE;
}
if (mod->props.drmFormatModifierPlaneCount != plane_count) {
wlr_log(WLR_ERROR, "Number of planes (%d) does not match format (%d)",
plane_count, mod->props.drmFormatModifierPlaneCount);
return VK_NULL_HANDLE;
}
// check if we have to create the image disjoint
bool disjoint = is_dmabuf_disjoint(attribs);
if (disjoint && !(mod->props.drmFormatModifierTilingFeatures
& VK_FORMAT_FEATURE_DISJOINT_BIT)) {
wlr_log(WLR_ERROR, "Format/Modifier does not support disjoint images");
return VK_NULL_HANDLE;
}
// image
VkExternalMemoryHandleTypeFlagBits htype =
VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT;
VkImageCreateInfo img_info = {
.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
.imageType = VK_IMAGE_TYPE_2D,
.format = fmt->format.vk,
.mipLevels = 1,
.arrayLayers = 1,
.samples = VK_SAMPLE_COUNT_1_BIT,
.sharingMode = VK_SHARING_MODE_EXCLUSIVE,
.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
.extent = (VkExtent3D) { attribs->width, attribs->height, 1 },
.usage = for_render ?
VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT :
VK_IMAGE_USAGE_SAMPLED_BIT,
};
if (disjoint) {
img_info.flags = VK_IMAGE_CREATE_DISJOINT_BIT;
}
VkExternalMemoryImageCreateInfo eimg = {
.sType = VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_IMAGE_CREATE_INFO,
.handleTypes = VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT,
};
img_info.pNext = &eimg;
VkSubresourceLayout plane_layouts[WLR_DMABUF_MAX_PLANES] = {0};
img_info.tiling = VK_IMAGE_TILING_DRM_FORMAT_MODIFIER_EXT;
for (unsigned i = 0u; i < plane_count; ++i) {
plane_layouts[i].offset = attribs->offset[i];
plane_layouts[i].rowPitch = attribs->stride[i];
plane_layouts[i].size = 0;
}
VkImageDrmFormatModifierExplicitCreateInfoEXT mod_info = {
.sType = VK_STRUCTURE_TYPE_IMAGE_DRM_FORMAT_MODIFIER_EXPLICIT_CREATE_INFO_EXT,
.drmFormatModifierPlaneCount = plane_count,
.drmFormatModifier = mod->props.drmFormatModifier,
.pPlaneLayouts = plane_layouts,
};
eimg.pNext = &mod_info;
VkImage image;
res = vkCreateImage(dev, &img_info, NULL, &image);
if (res != VK_SUCCESS) {
wlr_vk_error("vkCreateImage", res);
return VK_NULL_HANDLE;
}
unsigned mem_count = disjoint ? plane_count : 1u;
VkBindImageMemoryInfo bindi[WLR_DMABUF_MAX_PLANES] = {0};
VkBindImagePlaneMemoryInfo planei[WLR_DMABUF_MAX_PLANES] = {0};
for (unsigned i = 0u; i < mem_count; ++i) {
VkMemoryFdPropertiesKHR fdp = {
.sType = VK_STRUCTURE_TYPE_MEMORY_FD_PROPERTIES_KHR,
};
res = renderer->dev->api.getMemoryFdPropertiesKHR(dev, htype,
attribs->fd[i], &fdp);
if (res != VK_SUCCESS) {
wlr_vk_error("getMemoryFdPropertiesKHR", res);
goto error_image;
}
VkImageMemoryRequirementsInfo2 memri = {
.image = image,
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_REQUIREMENTS_INFO_2,
};
VkImagePlaneMemoryRequirementsInfo planeri;
if (disjoint) {
planeri = (VkImagePlaneMemoryRequirementsInfo){
.sType = VK_STRUCTURE_TYPE_IMAGE_PLANE_MEMORY_REQUIREMENTS_INFO,
.planeAspect = mem_plane_aspect(i),
};
memri.pNext = &planeri;
}
VkMemoryRequirements2 memr = {
.sType = VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2,
};
vkGetImageMemoryRequirements2(dev, &memri, &memr);
int mem = vulkan_find_mem_type(renderer->dev, 0,
memr.memoryRequirements.memoryTypeBits & fdp.memoryTypeBits);
if (mem < 0) {
wlr_log(WLR_ERROR, "no valid memory type index");
goto error_image;
}
// Since importing transfers ownership of the FD to Vulkan, we have
// to duplicate it since this operation does not transfer ownership
// of the attribs to this texture. Will be closed by Vulkan on
// vkFreeMemory.
int dfd = fcntl(attribs->fd[i], F_DUPFD_CLOEXEC, 0);
if (dfd < 0) {
wlr_log_errno(WLR_ERROR, "fcntl(F_DUPFD_CLOEXEC) failed");
goto error_image;
}
VkMemoryAllocateInfo memi = {
.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
.allocationSize = memr.memoryRequirements.size,
.memoryTypeIndex = mem,
};
VkImportMemoryFdInfoKHR importi = {
.sType = VK_STRUCTURE_TYPE_IMPORT_MEMORY_FD_INFO_KHR,
.fd = dfd,
.handleType = htype,
};
memi.pNext = &importi;
VkMemoryDedicatedAllocateInfo dedi = {
.sType = VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO,
.image = image,
};
importi.pNext = &dedi;
res = vkAllocateMemory(dev, &memi, NULL, &mems[i]);
if (res != VK_SUCCESS) {
close(dfd);
wlr_vk_error("vkAllocateMemory failed", res);
goto error_image;
}
++(*n_mems);
// fill bind info
bindi[i].image = image;
bindi[i].memory = mems[i];
bindi[i].memoryOffset = 0;
bindi[i].sType = VK_STRUCTURE_TYPE_BIND_IMAGE_MEMORY_INFO;
if (disjoint) {
planei[i].sType = VK_STRUCTURE_TYPE_BIND_IMAGE_PLANE_MEMORY_INFO;
planei[i].planeAspect = planeri.planeAspect;
bindi[i].pNext = &planei[i];
}
}
res = vkBindImageMemory2(dev, mem_count, bindi);
if (res != VK_SUCCESS) {
wlr_vk_error("vkBindMemory failed", res);
goto error_image;
}
return image;
error_image:
vkDestroyImage(dev, image, NULL);
for (size_t i = 0u; i < *n_mems; ++i) {
vkFreeMemory(dev, mems[i], NULL);
mems[i] = VK_NULL_HANDLE;
}
return VK_NULL_HANDLE;
}
static struct wlr_vk_texture *vulkan_texture_from_dmabuf(
struct wlr_vk_renderer *renderer,
struct wlr_dmabuf_attributes *attribs) {
VkResult res;
VkDevice dev = renderer->dev->dev;
const struct wlr_vk_format_props *fmt = vulkan_format_props_from_drm(
renderer->dev, attribs->format);
if (fmt == NULL) {
wlr_log(WLR_ERROR, "Unsupported pixel format %"PRIx32 " (%.4s)",
attribs->format, (const char*) &attribs->format);
return NULL;
}
struct wlr_vk_texture *texture = vulkan_texture_create(renderer,
attribs->width, attribs->height);
if (texture == NULL) {
return NULL;
}
texture->format = &fmt->format;
texture->image = vulkan_import_dmabuf(renderer, attribs,
texture->memories, &texture->mem_count, false);
if (!texture->image) {
goto error;
}
const struct wlr_pixel_format_info *format_info = drm_get_pixel_format_info(attribs->format);
assert(format_info);
texture->has_alpha = format_info->has_alpha;
// view
VkImageViewCreateInfo view_info = {
.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
.viewType = VK_IMAGE_VIEW_TYPE_2D,
.format = texture->format->vk,
.components.r = VK_COMPONENT_SWIZZLE_IDENTITY,
.components.g = VK_COMPONENT_SWIZZLE_IDENTITY,
.components.b = VK_COMPONENT_SWIZZLE_IDENTITY,
.components.a = texture->has_alpha
? VK_COMPONENT_SWIZZLE_IDENTITY
: VK_COMPONENT_SWIZZLE_ONE,
.subresourceRange = (VkImageSubresourceRange) {
.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
.baseMipLevel = 0,
.levelCount = 1,
.baseArrayLayer = 0,
.layerCount = 1,
},
.image = texture->image,
};
res = vkCreateImageView(dev, &view_info, NULL, &texture->image_view);
if (res != VK_SUCCESS) {
wlr_vk_error("vkCreateImageView failed", res);
goto error;
}
// descriptor
texture->ds_pool = vulkan_alloc_texture_ds(renderer, &texture->ds);
if (!texture->ds_pool) {
wlr_log(WLR_ERROR, "failed to allocate descriptor");
goto error;
}
VkDescriptorImageInfo ds_img_info = {
.imageView = texture->image_view,
.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
};
VkWriteDescriptorSet ds_write = {
.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
.descriptorCount = 1,
.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
.dstSet = texture->ds,
.pImageInfo = &ds_img_info,
};
vkUpdateDescriptorSets(dev, 1, &ds_write, 0, NULL);
texture->dmabuf_imported = true;
return texture;
error:
vulkan_texture_destroy(texture);
return NULL;
}
static void texture_handle_buffer_destroy(struct wlr_addon *addon) {
struct wlr_vk_texture *texture =
wl_container_of(addon, texture, buffer_addon);
// We might keep the texture around, waiting for pending command buffers to
// complete before free'ing descriptor sets. Make sure we don't
// use-after-free the destroyed wlr_buffer.
texture->buffer = NULL;
vulkan_texture_destroy(texture);
}
static const struct wlr_addon_interface buffer_addon_impl = {
.name = "wlr_vk_texture",
.destroy = texture_handle_buffer_destroy,
};
static struct wlr_texture *vulkan_texture_from_dmabuf_buffer(
struct wlr_vk_renderer *renderer, struct wlr_buffer *buffer,
struct wlr_dmabuf_attributes *dmabuf) {
struct wlr_addon *addon =
wlr_addon_find(&buffer->addons, renderer, &buffer_addon_impl);
if (addon != NULL) {
struct wlr_vk_texture *texture =
wl_container_of(addon, texture, buffer_addon);
wlr_buffer_lock(texture->buffer);
return &texture->wlr_texture;
}
struct wlr_vk_texture *texture = vulkan_texture_from_dmabuf(renderer, dmabuf);
if (texture == NULL) {
return false;
}
texture->buffer = wlr_buffer_lock(buffer);
wlr_addon_init(&texture->buffer_addon, &buffer->addons, renderer,
&buffer_addon_impl);
return &texture->wlr_texture;
}
struct wlr_texture *vulkan_texture_from_buffer(struct wlr_renderer *wlr_renderer,
struct wlr_buffer *buffer) {
struct wlr_vk_renderer *renderer = vulkan_get_renderer(wlr_renderer);
void *data;
uint32_t format;
size_t stride;
struct wlr_dmabuf_attributes dmabuf;
if (wlr_buffer_get_dmabuf(buffer, &dmabuf)) {
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;
} else {
return NULL;
}
}
void wlr_vk_texture_get_image_attribs(struct wlr_texture *texture,
struct wlr_vk_image_attribs *attribs) {
struct wlr_vk_texture *vk_texture = vulkan_get_texture(texture);
attribs->image = vk_texture->image;
attribs->format = vk_texture->format->vk;
attribs->layout = vk_texture->transitioned ?
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL : VK_IMAGE_LAYOUT_UNDEFINED;
}
bool wlr_vk_texture_has_alpha(struct wlr_texture *texture) {
struct wlr_vk_texture *vk_texture = vulkan_get_texture(texture);
return vk_texture->has_alpha;
}