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vulkan: Render fallback into vulkan memory

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Use the new map/unmap image upload method for Cairo node drawing:
1. map() the memory
2. create an image surface or that memory
3. draw to that image surface
4. success

There's no longer a need for Cairo to allocate image memory.
This commit is contained in:
Benjamin Otte 2023-06-14 02:15:29 +02:00
parent c27e412ff1
commit f88b1cef21
1 changed files with 16 additions and 10 deletions
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26
gsk/vulkan/gskvulkanrenderpass.c
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@ -1294,6 +1294,8 @@ gsk_vulkan_render_pass_get_node_as_texture (GskVulkanRenderPass *self,
{
VkSemaphore semaphore;
GskVulkanImage *result;
GskVulkanImageMap map;
gsize width, height;
cairo_surface_t *surface;
cairo_t *cr;
@ -1363,10 +1365,18 @@ gsk_vulkan_render_pass_get_node_as_texture (GskVulkanRenderPass *self,
#endif
/* XXX: We could intersect bounds with clip bounds here */
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
ceil (node->bounds.size.width * graphene_vec2_get_x (scale)),
ceil (node->bounds.size.height * graphene_vec2_get_y (scale)));
cairo_surface_set_device_scale (surface, graphene_vec2_get_x (scale), graphene_vec2_get_y (scale));
width = ceil (node->bounds.size.width * graphene_vec2_get_x (scale));
height = ceil (node->bounds.size.height * graphene_vec2_get_y (scale));
result = gsk_vulkan_image_new_for_upload (uploader, width, height);
gsk_vulkan_image_map_memory (result, uploader, &map);
surface = cairo_image_surface_create_for_data (map.data,
CAIRO_FORMAT_ARGB32,
width, height,
map.stride);
cairo_surface_set_device_scale (surface,
width / node->bounds.size.width,
height / node->bounds.size.height);
cr = cairo_create (surface);
cairo_translate (cr, -node->bounds.origin.x, -node->bounds.origin.y);
@ -1374,14 +1384,10 @@ gsk_vulkan_render_pass_get_node_as_texture (GskVulkanRenderPass *self,
cairo_destroy (cr);
result = gsk_vulkan_image_new_from_data (uploader,
cairo_image_surface_get_data (surface),
cairo_image_surface_get_width (surface),
cairo_image_surface_get_height (surface),
cairo_image_surface_get_stride (surface));
cairo_surface_finish (surface);
cairo_surface_destroy (surface);
gsk_vulkan_image_unmap_memory (result, uploader, &map);
gsk_vulkan_render_add_cleanup_image (render, result);
*tex_bounds = node->bounds;