1 files changed, 1 insertions, 25 deletions
diff --git a/src/gpu/texture_readback.cc b/src/gpu/texture_readback.cc
index e512428..e7f2729 100644
--- a/src/gpu/texture_readback.cc
+++ b/src/gpu/texture_readback.cc
@@ -71,19 +71,7 @@ std::vector<uint8_t> read_texture_pixels(WGPUInstance instance,
   // Wait for copy to complete before mapping
   wgpuDevicePoll(device, true, nullptr);
 
-  // Map buffer for reading (API differs between Win32 and native)
-#if defined(DEMO_CROSS_COMPILE_WIN32)
-  // Win32: Old callback API
-  MapState map_state = {};
-  auto map_cb = [](WGPUBufferMapAsyncStatus status, void* userdata) {
-    MapState* state = (MapState*)(userdata);
-    state->status = status;
-    state->done = true;
-  };
-  wgpuBufferMapAsync(staging, WGPUMapMode_Read, 0, buffer_size, map_cb,
-                     &map_state);
-#else
-  // Native: New callback info API
+  // Map buffer for reading
   MapState map_state = {};
   auto map_cb = [](WGPUMapAsyncStatus status, WGPUStringView message,
                    void* userdata, void* user2) {
@@ -99,7 +87,6 @@ std::vector<uint8_t> read_texture_pixels(WGPUInstance instance,
   map_info.callback = map_cb;
   map_info.userdata1 = &map_state;
   wgpuBufferMapAsync(staging, WGPUMapMode_Read, 0, buffer_size, map_info);
-#endif
 
   // Wait for mapping to complete (synchronous blocking)
   for (int i = 0; i < 100 && !map_state.done; ++i) {
@@ -221,16 +208,6 @@ std::vector<uint8_t> texture_readback_fp16_to_u8(WGPUDevice device,
   wgpuDevicePoll(device, true, nullptr);
 
   // Map buffer
-#if defined(DEMO_CROSS_COMPILE_WIN32)
-  MapState map_state = {};
-  auto map_cb = [](WGPUBufferMapAsyncStatus status, void* userdata) {
-    MapState* state = (MapState*)(userdata);
-    state->status = status;
-    state->done = true;
-  };
-  wgpuBufferMapAsync(staging, WGPUMapMode_Read, 0, buffer_size, map_cb,
-                     &map_state);
-#else
   MapState map_state = {};
   auto map_cb = [](WGPUMapAsyncStatus status, WGPUStringView message,
                    void* userdata, void* user2) {
@@ -245,7 +222,6 @@ std::vector<uint8_t> texture_readback_fp16_to_u8(WGPUDevice device,
   map_info.callback = map_cb;
   map_info.userdata1 = &map_state;
   wgpuBufferMapAsync(staging, WGPUMapMode_Read, 0, buffer_size, map_info);
-#endif
 
   for (int i = 0; i < 100 && !map_state.done; ++i) {
     wgpuDevicePoll(device, true, nullptr);