diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/intel_tex_layout.c')
l---------[-rw-r--r--] | src/mesa/drivers/dri/i965/intel_tex_layout.c | 103 |
1 files changed, 1 insertions, 102 deletions
diff --git a/src/mesa/drivers/dri/i965/intel_tex_layout.c b/src/mesa/drivers/dri/i965/intel_tex_layout.c index fcb5cc3906..fe61b44194 100644..120000 --- a/src/mesa/drivers/dri/i965/intel_tex_layout.c +++ b/src/mesa/drivers/dri/i965/intel_tex_layout.c @@ -1,102 +1 @@ -/************************************************************************** - * - * Copyright 2006 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. - * - **************************************************************************/ - /* - * Authors: - * Keith Whitwell <keith@tungstengraphics.com> - * Michel Dänzer <michel@tungstengraphics.com> - */ - -#include "intel_mipmap_tree.h" -#include "intel_tex_layout.h" -#include "macros.h" - - -static int align(int value, int alignment) -{ - return (value + alignment - 1) & ~(alignment - 1); -} - -void i945_miptree_layout_2d( struct intel_mipmap_tree *mt ) -{ - GLint align_h = 2, align_w = 4; - GLuint level; - GLuint x = 0; - GLuint y = 0; - GLuint width = mt->width0; - GLuint height = mt->height0; - - mt->pitch = mt->width0; - - /* May need to adjust pitch to accomodate the placement of - * the 2nd mipmap. This occurs when the alignment - * constraints of mipmap placement push the right edge of the - * 2nd mipmap out past the width of its parent. - */ - if (mt->first_level != mt->last_level) { - GLuint mip1_width = align(minify(mt->width0), align_w) - + minify(minify(mt->width0)); - - if (mip1_width > mt->width0) - mt->pitch = mip1_width; - } - - /* Pitch must be a whole number of dwords, even though we - * express it in texels. - */ - mt->pitch = align(mt->pitch * mt->cpp, 4) / mt->cpp; - mt->total_height = 0; - - for ( level = mt->first_level ; level <= mt->last_level ; level++ ) { - GLuint img_height; - - intel_miptree_set_level_info(mt, level, 1, x, y, width, - height, 1); - - if (mt->compressed) - img_height = MAX2(1, height/4); - else - img_height = align(height, align_h); - - - /* Because the images are packed better, the final offset - * might not be the maximal one: - */ - mt->total_height = MAX2(mt->total_height, y + img_height); - - /* Layout_below: step right after second mipmap. - */ - if (level == mt->first_level + 1) { - x += align(width, align_w); - } - else { - y += img_height; - } - - width = minify(width); - height = minify(height); - } -} +../intel/intel_tex_layout.c
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