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GPU correctness fixes and optimizations

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This commit is contained in:
Zachary Levy
2026-05-08 16:39:25 -07:00
parent c0fd79457c
commit 81ea3fd42c
3 changed files with 29 additions and 19 deletions
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draw/core_2d.odin
+7 -3
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@@ -538,7 +538,9 @@ upload :: proc(device: ^sdl.GPUDevice, pass: ^sdl.GPUCopyPass) {
sdl.GPUBufferUsageFlags{.VERTEX},
)
vert_array := sdl.MapGPUTransferBuffer(device, GLOB.core_2d.vertex_buffer.transfer, false)
// cycle=true: see backdrop.odin upload_backdrop_primitives. Persistent per-frame
// streaming buffer; previous frame's blit is still in flight at map time.
vert_array := sdl.MapGPUTransferBuffer(device, GLOB.core_2d.vertex_buffer.transfer, true)
if vert_array == nil {
log.panicf("Failed to map vertex transfer buffer: %s", sdl.GetError())
}
@@ -569,7 +571,8 @@ upload :: proc(device: ^sdl.GPUDevice, pass: ^sdl.GPUCopyPass) {
grow_buffer_if_needed(device, &GLOB.core_2d.index_buffer, index_size, sdl.GPUBufferUsageFlags{.INDEX})
idx_array := sdl.MapGPUTransferBuffer(device, GLOB.core_2d.index_buffer.transfer, false)
// cycle=true: see vertex_buffer above.
idx_array := sdl.MapGPUTransferBuffer(device, GLOB.core_2d.index_buffer.transfer, true)
if idx_array == nil {
log.panicf("Failed to map index transfer buffer: %s", sdl.GetError())
}
@@ -596,7 +599,8 @@ upload :: proc(device: ^sdl.GPUDevice, pass: ^sdl.GPUCopyPass) {
sdl.GPUBufferUsageFlags{.GRAPHICS_STORAGE_READ},
)
prim_array := sdl.MapGPUTransferBuffer(device, GLOB.core_2d.primitive_buffer.transfer, false)
// cycle=true: see vertex_buffer above.
prim_array := sdl.MapGPUTransferBuffer(device, GLOB.core_2d.primitive_buffer.transfer, true)
if prim_array == nil {
log.panicf("Failed to map primitive transfer buffer: %s", sdl.GetError())
}