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authormarha <marha@users.sourceforge.net>2011-04-30 15:25:48 +0000
committermarha <marha@users.sourceforge.net>2011-04-30 15:25:48 +0000
commit0402d388cb9803652c0f9a52ba7dcb6029fdd0b9 (patch)
treeafd1b68edb9a74d5c87e63ea72d04b8301705d82 /mesalib/src/gallium/auxiliary/util/u_rect.c
parentc4ae0bb951bfb6061e7f0c492ba03de330137515 (diff)
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Added extra needed files
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_rect.c')
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diff --git a/mesalib/src/gallium/auxiliary/util/u_rect.c b/mesalib/src/gallium/auxiliary/util/u_rect.c
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+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN GRAPHICS 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.
+ *
+ **************************************************************************/
+
+/**
+ * Rectangle-related helper functions.
+ */
+
+
+#include "util/u_format.h"
+#include "util/u_rect.h"
+#include "util/u_pack_color.h"
+
+
+/**
+ * Copy 2D rect from one place to another.
+ * Position and sizes are in pixels.
+ * src_stride may be negative to do vertical flip of pixels from source.
+ */
+void
+util_copy_rect(ubyte * dst,
+ enum pipe_format format,
+ unsigned dst_stride,
+ unsigned dst_x,
+ unsigned dst_y,
+ unsigned width,
+ unsigned height,
+ const ubyte * src,
+ int src_stride,
+ unsigned src_x,
+ unsigned src_y)
+{
+ unsigned i;
+ int src_stride_pos = src_stride < 0 ? -src_stride : src_stride;
+ int blocksize = util_format_get_blocksize(format);
+ int blockwidth = util_format_get_blockwidth(format);
+ int blockheight = util_format_get_blockheight(format);
+
+ assert(blocksize > 0);
+ assert(blockwidth > 0);
+ assert(blockheight > 0);
+
+ dst_x /= blockwidth;
+ dst_y /= blockheight;
+ width = (width + blockwidth - 1)/blockwidth;
+ height = (height + blockheight - 1)/blockheight;
+ src_x /= blockwidth;
+ src_y /= blockheight;
+
+ dst += dst_x * blocksize;
+ src += src_x * blocksize;
+ dst += dst_y * dst_stride;
+ src += src_y * src_stride_pos;
+ width *= blocksize;
+
+ if (width == dst_stride && width == src_stride)
+ memcpy(dst, src, height * width);
+ else {
+ for (i = 0; i < height; i++) {
+ memcpy(dst, src, width);
+ dst += dst_stride;
+ src += src_stride;
+ }
+ }
+}
+
+void
+util_fill_rect(ubyte * dst,
+ enum pipe_format format,
+ unsigned dst_stride,
+ unsigned dst_x,
+ unsigned dst_y,
+ unsigned width,
+ unsigned height,
+ union util_color *uc)
+{
+ unsigned i, j;
+ unsigned width_size;
+ int blocksize = util_format_get_blocksize(format);
+ int blockwidth = util_format_get_blockwidth(format);
+ int blockheight = util_format_get_blockheight(format);
+
+ assert(blocksize > 0);
+ assert(blockwidth > 0);
+ assert(blockheight > 0);
+
+ dst_x /= blockwidth;
+ dst_y /= blockheight;
+ width = (width + blockwidth - 1)/blockwidth;
+ height = (height + blockheight - 1)/blockheight;
+
+ dst += dst_x * blocksize;
+ dst += dst_y * dst_stride;
+ width_size = width * blocksize;
+
+ switch (blocksize) {
+ case 1:
+ if(dst_stride == width_size)
+ memset(dst, uc->ub, height * width_size);
+ else {
+ for (i = 0; i < height; i++) {
+ memset(dst, uc->ub, width_size);
+ dst += dst_stride;
+ }
+ }
+ break;
+ case 2:
+ for (i = 0; i < height; i++) {
+ uint16_t *row = (uint16_t *)dst;
+ for (j = 0; j < width; j++)
+ *row++ = uc->us;
+ dst += dst_stride;
+ }
+ break;
+ case 4:
+ for (i = 0; i < height; i++) {
+ uint32_t *row = (uint32_t *)dst;
+ for (j = 0; j < width; j++)
+ *row++ = uc->ui;
+ dst += dst_stride;
+ }
+ break;
+ case 8:
+ case 12:
+ case 16:
+ case 24:
+ case 32:
+ for (i = 0; i < height; i++) {
+ ubyte *row = dst;
+ for (j = 0; j < width; j++) {
+ memcpy(row, uc, blocksize);
+ row += blocksize;
+ }
+ dst += dst_stride;
+ }
+ break;
+ default:
+ assert(0);
+ break;
+ }
+}