X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fdrivers%2Fdri%2Fi915%2Fintel_tex_layout.c;h=fbb6520e7a1f62d9213e473d37a80e07bb68a7d3;hb=e6ec425d6eeac95f466174267b2c18c0bffca3f0;hp=fe61b441945e5da392ab2885bc12cca826004a55;hpb=176c454765b88c71d8b1ef474bc0fd53cb253a08;p=mesa.git diff --git a/src/mesa/drivers/dri/i915/intel_tex_layout.c b/src/mesa/drivers/dri/i915/intel_tex_layout.c deleted file mode 120000 index fe61b441945..00000000000 --- a/src/mesa/drivers/dri/i915/intel_tex_layout.c +++ /dev/null @@ -1 +0,0 @@ -../intel/intel_tex_layout.c \ No newline at end of file diff --git a/src/mesa/drivers/dri/i915/intel_tex_layout.c b/src/mesa/drivers/dri/i915/intel_tex_layout.c new file mode 100644 index 00000000000..fbb6520e7a1 --- /dev/null +++ b/src/mesa/drivers/dri/i915/intel_tex_layout.c @@ -0,0 +1,214 @@ +/************************************************************************** + * + * 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 + * Michel Dänzer + */ + +#include "intel_mipmap_tree.h" +#include "intel_tex_layout.h" +#include "intel_context.h" + +#include "main/image.h" +#include "main/macros.h" + +static unsigned int +intel_horizontal_texture_alignment_unit(struct intel_context *intel, + gl_format format) +{ + /** + * From the "Alignment Unit Size" section of various specs, namely: + * - Gen3 Spec: "Memory Data Formats" Volume, Section 1.20.1.4 + * - i965 and G45 PRMs: Volume 1, Section 6.17.3.4. + * - Ironlake and Sandybridge PRMs: Volume 1, Part 1, Section 7.18.3.4 + * - BSpec (for Ivybridge and slight variations in separate stencil) + * + * +----------------------------------------------------------------------+ + * | | alignment unit width ("i") | + * | Surface Property |-----------------------------| + * | | 915 | 965 | ILK | SNB | IVB | + * +----------------------------------------------------------------------+ + * | YUV 4:2:2 format | 8 | 4 | 4 | 4 | 4 | + * | BC1-5 compressed format (DXTn/S3TC) | 4 | 4 | 4 | 4 | 4 | + * | FXT1 compressed format | 8 | 8 | 8 | 8 | 8 | + * | Depth Buffer (16-bit) | 4 | 4 | 4 | 4 | 8 | + * | Depth Buffer (other) | 4 | 4 | 4 | 4 | 4 | + * | Separate Stencil Buffer | N/A | N/A | 8 | 8 | 8 | + * | All Others | 4 | 4 | 4 | 4 | 4 | + * +----------------------------------------------------------------------+ + * + * On IVB+, non-special cases can be overridden by setting the SURFACE_STATE + * "Surface Horizontal Alignment" field to HALIGN_4 or HALIGN_8. + */ + if (_mesa_is_format_compressed(format)) { + /* The hardware alignment requirements for compressed textures + * happen to match the block boundaries. + */ + unsigned int i, j; + _mesa_get_format_block_size(format, &i, &j); + return i; + } + + if (format == MESA_FORMAT_S8) + return 8; + + /* The depth alignment requirements in the table above are for rendering to + * depth miplevels using the LOD control fields. We don't use LOD control + * fields, and instead use page offsets plus intra-tile x/y offsets, which + * require that the low 3 bits are zero. To reduce the number of x/y + * offset workaround blits we do, align the X to 8, which depth texturing + * can handle (sadly, it can't handle 8 in the Y direction). + */ + if (intel->gen >= 7 && + _mesa_get_format_base_format(format) == GL_DEPTH_COMPONENT) + return 8; + + return 4; +} + +static unsigned int +intel_vertical_texture_alignment_unit(struct intel_context *intel, + gl_format format) +{ + /** + * From the "Alignment Unit Size" section of various specs, namely: + * - Gen3 Spec: "Memory Data Formats" Volume, Section 1.20.1.4 + * - i965 and G45 PRMs: Volume 1, Section 6.17.3.4. + * - Ironlake and Sandybridge PRMs: Volume 1, Part 1, Section 7.18.3.4 + * - BSpec (for Ivybridge and slight variations in separate stencil) + * + * +----------------------------------------------------------------------+ + * | | alignment unit height ("j") | + * | Surface Property |-----------------------------| + * | | 915 | 965 | ILK | SNB | IVB | + * +----------------------------------------------------------------------+ + * | BC1-5 compressed format (DXTn/S3TC) | 4 | 4 | 4 | 4 | 4 | + * | FXT1 compressed format | 4 | 4 | 4 | 4 | 4 | + * | Depth Buffer | 2 | 2 | 2 | 4 | 4 | + * | Separate Stencil Buffer | N/A | N/A | N/A | 4 | 8 | + * | Multisampled (4x or 8x) render target | N/A | N/A | N/A | 4 | 4 | + * | All Others | 2 | 2 | 2 | 2 | 2 | + * +----------------------------------------------------------------------+ + * + * On SNB+, non-special cases can be overridden by setting the SURFACE_STATE + * "Surface Vertical Alignment" field to VALIGN_2 or VALIGN_4. + * + * We currently don't support multisampling. + */ + if (_mesa_is_format_compressed(format)) + return 4; + + if (format == MESA_FORMAT_S8) + return intel->gen >= 7 ? 8 : 4; + + GLenum base_format = _mesa_get_format_base_format(format); + + if (intel->gen >= 6 && + (base_format == GL_DEPTH_COMPONENT || + base_format == GL_DEPTH_STENCIL)) { + return 4; + } + + return 2; +} + +void +intel_get_texture_alignment_unit(struct intel_context *intel, + gl_format format, + unsigned int *w, unsigned int *h) +{ + *w = intel_horizontal_texture_alignment_unit(intel, format); + *h = intel_vertical_texture_alignment_unit(intel, format); +} + +void i945_miptree_layout_2d(struct intel_mipmap_tree *mt) +{ + GLuint level; + GLuint x = 0; + GLuint y = 0; + GLuint width = mt->physical_width0; + GLuint height = mt->physical_height0; + GLuint depth = mt->physical_depth0; /* number of array layers. */ + + mt->total_width = mt->physical_width0; + + if (mt->compressed) { + mt->total_width = ALIGN(mt->physical_width0, mt->align_w); + } + + /* May need to adjust width 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; + + if (mt->compressed) { + mip1_width = ALIGN(minify(mt->physical_width0, 1), mt->align_w) + + ALIGN(minify(mt->physical_width0, 2), mt->align_w); + } else { + mip1_width = ALIGN(minify(mt->physical_width0, 1), mt->align_w) + + minify(mt->physical_width0, 2); + } + + if (mip1_width > mt->total_width) { + mt->total_width = mip1_width; + } + } + + mt->total_height = 0; + + for ( level = mt->first_level ; level <= mt->last_level ; level++ ) { + GLuint img_height; + + intel_miptree_set_level_info(mt, level, x, y, width, + height, depth); + + img_height = ALIGN(height, mt->align_h); + if (mt->compressed) + img_height /= mt->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, mt->align_w); + } + else { + y += img_height; + } + + width = minify(width, 1); + height = minify(height, 1); + } +}