vc4: Add support for texture tiling.

This still treats everything as RGBA8888 for the most part, same as
before.  This is a prerequisite for handling other texture formats, since
only RGBA8888 has a raster-layout mode.

1 files changed, 41 insertions, 0 deletions

diff --git a/src/gallium/drivers/vc4/vc4_tiling.h b/src/gallium/drivers/vc4/vc4_tiling.h
new file mode 100644
index 00000000000..b5d10da3417
--- /dev/null
+++ b/src/gallium/drivers/vc4/vc4_tiling.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright © 2014 Broadcom
+ *
+ * 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, sublicense,
+ * 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 above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+#ifndef VC4_TILING_H
+#define VC4_TILING_H
+
+uint32_t vc4_utile_width(int cpp);
+uint32_t vc4_utile_height(int cpp);
+bool vc4_size_is_lt(uint32_t width, uint32_t height, int cpp);
+void vc4_load_utile(void *dst, void *src, uint32_t dst_stride, uint32_t cpp);
+void vc4_store_utile(void *dst, void *src, uint32_t src_stride, uint32_t cpp);
+void vc4_load_tiled_image(void *dst, uint32_t dst_stride,
+                          void *src, uint32_t src_stride,
+                          uint8_t tiling_format, int cpp,
+                          const struct pipe_box *box);
+void vc4_store_tiled_image(void *dst, uint32_t dst_stride,
+                           void *src, uint32_t src_stride,
+                           uint8_t tiling_format, int cpp,
+                           const struct pipe_box *box);
+
+#endif /* VC4_TILING_H */