[WIP] D3D11 gpu accel

gfx/layers/d3d11/GpuRasterD3D11.h

@@ -0,0 +1,36 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef GFX_GPU_RASTER_D3D11_H
+#define GFX_GPU_RASTER_D3D11_H
+
+#include <d3d11_1.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Device-space edges. Fractional or non-finite edges require normal drawing. */
+typedef struct GpuRasterRect {
+  double left, top, right, bottom;
+} GpuRasterRect;
+
+/* FALSE means unsupported input; TRUE may produce an empty clipped rectangle. */
+BOOL GpuRasterD3D11ClipRect(const GpuRasterRect* rect, const D3D11_RECT* clip,
+                          LONG width, LONG height, D3D11_RECT* result);
+
+/* Source replacement, not alpha blending. The caller must check ClearView
+ * device support and supply the dimensions of the render target. No pipeline
+ * bindings are changed. FALSE leaves the target untouched for shader fallback. */
+BOOL GpuRasterD3D11FillRect(ID3D11DeviceContext1* context,
+                          ID3D11RenderTargetView* target,
+                          LONG width, LONG height,
+                          const GpuRasterRect* rect, const D3D11_RECT* clip,
+                          const float color[4]);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif