Merge pull request #6690 from ReinUsesLisp/dma-clear-fixups

buffer_cache: Misc fixups related to buffer clears

src/video_core/buffer_cache/buffer_cache.h

@@ -553,13 +553,9 @@ bool BufferCache<P>::DMAClear(GPUVAddr dst_address, u64 amount, u32 value) {
     ClearDownload(subtract_interval);
     common_ranges.subtract(subtract_interval);
 
-    BufferId buffer;
-    do {
-        has_deleted_buffers = false;
-        buffer = FindBuffer(*cpu_dst_address, static_cast<u32>(size));
-    } while (has_deleted_buffers);
+    const BufferId buffer = FindBuffer(*cpu_dst_address, static_cast<u32>(size));
     auto& dest_buffer = slot_buffers[buffer];
-    const u32 offset = static_cast<u32>(*cpu_dst_address - dest_buffer.CpuAddr());
+    const u32 offset = dest_buffer.Offset(*cpu_dst_address);
     runtime.ClearBuffer(dest_buffer, offset, size, value);
     return true;
 }

src/video_core/renderer_opengl/gl_buffer_cache.cpp

@@ -100,7 +100,7 @@ void BufferCacheRuntime::CopyBuffer(Buffer& dst_buffer, Buffer& src_buffer,
 
 void BufferCacheRuntime::ClearBuffer(Buffer& dest_buffer, u32 offset, size_t size, u32 value) {
     glClearNamedBufferSubData(dest_buffer.Handle(), GL_R32UI, static_cast<GLintptr>(offset),
-                              static_cast<GLsizeiptr>(size / sizeof(u32)), GL_RGBA, GL_UNSIGNED_INT,
+                              static_cast<GLsizeiptr>(size / sizeof(u32)), GL_RED, GL_UNSIGNED_INT,
                               &value);
 }