Mesa (master): llvmpipe: whole image tile/untile functions
Brian Paul
brianp at kemper.freedesktop.org
Wed Feb 24 04:16:36 UTC 2010
Module: Mesa
Branch: master
Commit: 5e321280c14fa376c44c3eeef67b27160419fc56
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=5e321280c14fa376c44c3eeef67b27160419fc56
Author: Brian Paul <brianp at vmware.com>
Date: Mon Feb 22 15:18:49 2010 -0700
llvmpipe: whole image tile/untile functions
---
src/gallium/drivers/llvmpipe/lp_tile_image.c | 126 ++++++++++++++++++++++++++
src/gallium/drivers/llvmpipe/lp_tile_image.h | 57 ++++++++++++
2 files changed, 183 insertions(+), 0 deletions(-)
diff --git a/src/gallium/drivers/llvmpipe/lp_tile_image.c b/src/gallium/drivers/llvmpipe/lp_tile_image.c
new file mode 100644
index 0000000..c1980b3
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_tile_image.c
@@ -0,0 +1,126 @@
+/**************************************************************************
+ *
+ * Copyright 2010 VMware, Inc. 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 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL THE 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.
+ *
+ **************************************************************************/
+
+
+#include "lp_tile_soa.h"
+#include "lp_tile_image.h"
+
+
+#define BYTES_PER_TILE (TILE_SIZE * TILE_SIZE * 4)
+
+
+/**
+ * Convert a tiled image into a linear image.
+ * \param src_stride source row stride in bytes (bytes per row of tiles)
+ * \param dst_stride dest row stride in bytes
+ */
+void
+lp_tiled_to_linear(const uint8_t *src,
+ uint8_t *dst,
+ unsigned width, unsigned height,
+ enum pipe_format format,
+ unsigned src_stride,
+ unsigned dst_stride)
+{
+ const unsigned tiles_per_row = src_stride / BYTES_PER_TILE;
+ unsigned i, j;
+
+ for (j = 0; j < height; j += TILE_SIZE) {
+ for (i = 0; i < width; i += TILE_SIZE) {
+ unsigned tile_offset =
+ ((j / TILE_SIZE) * tiles_per_row + i / TILE_SIZE);
+ unsigned byte_offset = tile_offset * BYTES_PER_TILE;
+ const uint8_t *src_tile = src + byte_offset;
+
+ lp_tile_write_4ub(format,
+ src_tile,
+ dst,
+ dst_stride,
+ i, j, TILE_SIZE, TILE_SIZE);
+ }
+ }
+}
+
+
+/**
+ * Convert a linear image into a tiled image.
+ * \param src_stride source row stride in bytes
+ * \param dst_stride dest row stride in bytes (bytes per row of tiles)
+ */
+void
+lp_linear_to_tiled(const uint8_t *src,
+ uint8_t *dst,
+ unsigned width, unsigned height,
+ enum pipe_format format,
+ unsigned src_stride,
+ unsigned dst_stride)
+{
+ const unsigned tiles_per_row = dst_stride / BYTES_PER_TILE;
+ unsigned i, j;
+
+ for (j = 0; j < height; j += TILE_SIZE) {
+ for (i = 0; i < width; i += TILE_SIZE) {
+ unsigned tile_offset =
+ ((j / TILE_SIZE) * tiles_per_row + i / TILE_SIZE);
+ unsigned byte_offset = tile_offset * BYTES_PER_TILE;
+ uint8_t *dst_tile = dst + byte_offset;
+
+ lp_tile_read_4ub(format,
+ dst_tile,
+ src,
+ src_stride,
+ i, j, TILE_SIZE, TILE_SIZE);
+ }
+ }
+}
+
+
+/**
+ * For testing only.
+ */
+void
+test_tiled_linear_conversion(uint8_t *data,
+ enum pipe_format format,
+ unsigned width, unsigned height,
+ unsigned stride)
+{
+ /* size in tiles */
+ unsigned wt = (width + TILE_SIZE - 1) / TILE_SIZE;
+ unsigned ht = (height + TILE_SIZE - 1) / TILE_SIZE;
+
+ uint8_t *tiled = malloc(wt * ht * TILE_SIZE * TILE_SIZE * 4);
+
+ unsigned tiled_stride = wt * TILE_SIZE * TILE_SIZE * 4;
+
+ lp_linear_to_tiled(data, tiled, width, height, format,
+ stride, tiled_stride);
+
+ lp_tiled_to_linear(tiled, data, width, height, format,
+ tiled_stride, stride);
+
+ free(tiled);
+}
+
diff --git a/src/gallium/drivers/llvmpipe/lp_tile_image.h b/src/gallium/drivers/llvmpipe/lp_tile_image.h
new file mode 100644
index 0000000..60d472e
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_tile_image.h
@@ -0,0 +1,57 @@
+/**************************************************************************
+ *
+ * Copyright 2010 VMware, Inc. 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 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL THE 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.
+ *
+ **************************************************************************/
+
+
+#ifndef LP_TILE_IMAGE_H
+#define LP_TILE_IMAGE_H
+
+
+void
+lp_tiled_to_linear(const uint8_t *src,
+ uint8_t *dst,
+ unsigned width, unsigned height,
+ enum pipe_format format,
+ unsigned src_stride,
+ unsigned dst_stride);
+
+
+void
+lp_linear_to_tiled(const uint8_t *src,
+ uint8_t *dst,
+ unsigned width, unsigned height,
+ enum pipe_format format,
+ unsigned src_stride,
+ unsigned dst_stride);
+
+
+void
+test_tiled_linear_conversion(uint8_t *data,
+ enum pipe_format format,
+ unsigned width, unsigned height,
+ unsigned stride);
+
+
+#endif /* LP_TILE_IMAGE_H */
More information about the mesa-commit
mailing list