Staged_Buffer

1 files changed, 38 insertions, 0 deletions

diff --git a/video.cpp b/video.cpp
index 09261b5..d5efb34 100644
--- a/video.cpp
+++ b/video.cpp
@@ -3900,3 +3900,41 @@ Vram_Allocator::Allocation Vram_Allocator::alloc(
 void Vram_Allocator::free(Allocation& alloc) {
 	alloc.chunk->free = true;
 }
+
+void Staged_Buffer::init(
+	Device* dev,
+	const char* name,
+	int s,
+	int flags
+) {
+	size = s;
+	stage = dev->create_buffer(
+		name,
+		size,
+		Buffer_Flags::copy_src |
+		Buffer_Flags::cpu_readwrite
+	);
+	gpuonly = dev->create_buffer(
+		name,
+		size,
+		Buffer_Flags::copy_dst |
+		flags
+	);
+}
+
+void Staged_Buffer::destroy(Device* dev) {
+	dev->destroy_buffer(stage);
+	dev->destroy_buffer(gpuonly);
+}
+
+void* Staged_Buffer::map(Device* dev) {
+	return dev->map_buffer(stage, 0, size);
+}
+
+void Staged_Buffer::unmap(Device* dev) {
+	dev->unmap_buffer(stage);
+}
+
+void Staged_Buffer::update(Context& ctx) {
+	ctx.copy(gpuonly, stage);
+}