1 files changed, 107 insertions, 0 deletions
diff --git a/src/gallium/drivers/nvfx/nv04_2d.h b/src/gallium/drivers/nvfx/nv04_2d.h
new file mode 100644
index 00000000000..00ee5bc0b23
--- /dev/null
+++ b/src/gallium/drivers/nvfx/nv04_2d.h
@@ -0,0 +1,107 @@
+/**************************************************************************
+ *
+ * Copyright 2009 Ben Skeggs
+ * Copyright 2009 Younes Manton
+ * Copyright 2010 Luca Barbieri
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
+ * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ **************************************************************************/
+
+/* this code has no Mesa or Gallium dependency and can be reused in the classic Mesa driver or DDX */
+
+#ifndef __NV04_2D_H__
+#define __NV04_2D_H__
+
+struct nv04_2d_context;
+struct nouveau_channel;
+struct nouveau_bo;
+
+// NOTE: all functions taking this as a parameter will CLOBBER it (except for ->bo)
+struct nv04_region {
+	struct nouveau_bo* bo;
+	int offset;
+	unsigned pitch; // 0 -> swizzled
+	unsigned bpps; // bpp shift (0, 1, 2; 3, 4 for fp/compressed)
+	unsigned one_bits; // number of high bits read and written as ones (for "no-alpha" optimization)
+	unsigned x, y, z;
+	unsigned w, h, d;
+};
+
+static inline void
+nv04_region_try_to_linearize(struct nv04_region* rgn)
+{
+	assert(!rgn->pitch);
+
+	if(rgn->d <= 1)
+	{
+		if(rgn->h <= 1 || rgn->w <= 2)
+			rgn->pitch = rgn->w << rgn->bpps;
+	}
+	else
+	{
+		if(rgn->h <= 2 && rgn->w <= 2)
+		{
+			rgn->pitch = rgn->w << rgn->bpps;
+			rgn->offset += rgn->z * rgn->h * rgn->pitch;
+		}
+	}
+}
+
+void
+nv04_memcpy(struct nv04_2d_context *ctx,
+		struct nouveau_bo* dstbo, int dstoff,
+		struct nouveau_bo* srcbo, int srcoff,
+		unsigned size);
+
+unsigned
+nv04_region_begin(struct nv04_region* rgn, unsigned w, unsigned h);
+
+unsigned
+nv04_region_end(struct nv04_region* rgn, unsigned w, unsigned h);
+
+void
+nv04_2d_context_takedown(struct nv04_2d_context *pctx);
+
+struct nv04_2d_context *
+nv04_2d_context_init(struct nouveau_channel* chan);
+
+void
+nv04_region_copy_cpu(struct nv04_region* dst, struct nv04_region* src, int w, int h);
+
+void
+nv04_region_fill_cpu(struct nv04_region* dst, int w, int h, unsigned value);
+
+int
+nv04_region_copy_2d(struct nv04_2d_context *ctx,
+		struct nv04_region* dst, struct nv04_region* src,
+		int w, int h,
+		int dst_to_gpu, int src_on_gpu);
+
+int
+nv04_region_fill_2d(struct nv04_2d_context *ctx,
+		struct nv04_region *dst,
+                int w, int h,
+                unsigned value);
+
+#endif