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-rw-r--r--render/vulkan/renderer.c6
-rw-r--r--render/vulkan/texture.c2
2 files changed, 6 insertions, 2 deletions
diff --git a/render/vulkan/renderer.c b/render/vulkan/renderer.c
index 0ef256c2..4a6f9bdf 100644
--- a/render/vulkan/renderer.c
+++ b/render/vulkan/renderer.c
@@ -200,7 +200,7 @@ static void release_stage_allocations(struct wlr_vk_renderer *renderer) {
}
struct wlr_vk_buffer_span vulkan_get_stage_span(struct wlr_vk_renderer *r,
- VkDeviceSize size) {
+ VkDeviceSize size, VkDeviceSize alignment) {
// try to find free span
// simple greedy allocation algorithm - should be enough for this usecase
// since all allocations are freed together after the frame
@@ -215,6 +215,10 @@ struct wlr_vk_buffer_span vulkan_get_stage_span(struct wlr_vk_renderer *r,
}
assert(start <= buf->buf_size);
+
+ // ensure the proposed start is a multiple of alignment
+ start += alignment - 1 - ((start + alignment - 1) % alignment);
+
if (buf->buf_size - start < size) {
continue;
}
diff --git a/render/vulkan/texture.c b/render/vulkan/texture.c
index 45e3fec9..9437cafc 100644
--- a/render/vulkan/texture.c
+++ b/render/vulkan/texture.c
@@ -73,7 +73,7 @@ static bool write_pixels(struct wlr_vk_texture *texture,
}
// get staging buffer
- struct wlr_vk_buffer_span span = vulkan_get_stage_span(renderer, bsize);
+ 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);