From d779a5d16ae6a17b3fc0c097f4eb477a80e54566 Mon Sep 17 00:00:00 2001 From: Marek Olšák Date: Sat, 24 Jul 2010 21:32:53 +0200 Subject: r300g: cleanup texture creation code This decouples initializing a texture layout/miptree description from an actual texture creation, it also partially unifies texture_create and texture_from_handle. r300_texture inherits r300_texture_desc, which inherits u_resource. The CBZB clear criteria are moved to r300_texture_desc::cbzb_allowed[level]. And other minor cleanups. --- src/gallium/drivers/r300/r300_texture_desc.c | 456 +++++++++++++++++++++++++++ 1 file changed, 456 insertions(+) create mode 100644 src/gallium/drivers/r300/r300_texture_desc.c (limited to 'src/gallium/drivers/r300/r300_texture_desc.c') diff --git a/src/gallium/drivers/r300/r300_texture_desc.c b/src/gallium/drivers/r300/r300_texture_desc.c new file mode 100644 index 0000000000..18a2bd31fd --- /dev/null +++ b/src/gallium/drivers/r300/r300_texture_desc.c @@ -0,0 +1,456 @@ +/* + * Copyright 2008 Corbin Simpson + * Copyright 2010 Marek Olšák + * + * 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 + * on 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 AUTHOR(S) AND/OR THEIR 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 "r300_texture_desc.h" + +#include "r300_context.h" +#include "r300_winsys.h" + +#include "util/u_format.h" + +/* Returns the number of pixels that the texture should be aligned to + * in the given dimension. */ +unsigned r300_get_pixel_alignment(enum pipe_format format, + unsigned num_samples, + enum r300_buffer_tiling microtile, + enum r300_buffer_tiling macrotile, + enum r300_dim dim) +{ + static const unsigned table[2][5][3][2] = + { + { + /* Macro: linear linear linear + Micro: linear tiled square-tiled */ + {{ 32, 1}, { 8, 4}, { 0, 0}}, /* 8 bits per pixel */ + {{ 16, 1}, { 8, 2}, { 4, 4}}, /* 16 bits per pixel */ + {{ 8, 1}, { 4, 2}, { 0, 0}}, /* 32 bits per pixel */ + {{ 4, 1}, { 0, 0}, { 2, 2}}, /* 64 bits per pixel */ + {{ 2, 1}, { 0, 0}, { 0, 0}} /* 128 bits per pixel */ + }, + { + /* Macro: tiled tiled tiled + Micro: linear tiled square-tiled */ + {{256, 8}, {64, 32}, { 0, 0}}, /* 8 bits per pixel */ + {{128, 8}, {64, 16}, {32, 32}}, /* 16 bits per pixel */ + {{ 64, 8}, {32, 16}, { 0, 0}}, /* 32 bits per pixel */ + {{ 32, 8}, { 0, 0}, {16, 16}}, /* 64 bits per pixel */ + {{ 16, 8}, { 0, 0}, { 0, 0}} /* 128 bits per pixel */ + } + }; + static const unsigned aa_block[2] = {4, 8}; + unsigned tile = 0; + unsigned pixsize = util_format_get_blocksize(format); + + assert(macrotile <= R300_BUFFER_TILED); + assert(microtile <= R300_BUFFER_SQUARETILED); + assert(pixsize <= 16); + assert(dim <= DIM_HEIGHT); + + if (num_samples > 1) { + /* Multisampled textures have their own alignment scheme. */ + if (pixsize == 4) + tile = aa_block[dim]; + /* XXX FP16 AA. */ + } else { + /* Standard alignment. */ + tile = table[macrotile][util_logbase2(pixsize)][microtile][dim]; + } + + assert(tile); + return tile; +} + +/* Return true if macrotiling should be enabled on the miplevel. */ +static boolean r300_texture_macro_switch(struct r300_texture_desc *desc, + unsigned level, + boolean rv350_mode, + enum r300_dim dim) +{ + unsigned tile, texdim; + + tile = r300_get_pixel_alignment(desc->b.b.format, desc->b.b.nr_samples, + desc->microtile, R300_BUFFER_TILED, dim); + if (dim == DIM_WIDTH) { + texdim = u_minify(desc->b.b.width0, level); + } else { + texdim = u_minify(desc->b.b.height0, level); + } + + /* See TX_FILTER1_n.MACRO_SWITCH. */ + if (rv350_mode) { + return texdim >= tile; + } else { + return texdim > tile; + } +} + +/** + * Return the stride, in bytes, of the texture image of the given texture + * at the given level. + */ +static unsigned r300_texture_get_stride(struct r300_screen *screen, + struct r300_texture_desc *desc, + unsigned level) +{ + unsigned tile_width, width, stride; + + if (desc->stride_in_bytes_override) + return desc->stride_in_bytes_override; + + /* Check the level. */ + if (level > desc->b.b.last_level) { + SCREEN_DBG(screen, DBG_TEX, "%s: level (%u) > last_level (%u)\n", + __FUNCTION__, level, desc->b.b.last_level); + return 0; + } + + width = u_minify(desc->b.b.width0, level); + + if (util_format_is_plain(desc->b.b.format)) { + tile_width = r300_get_pixel_alignment(desc->b.b.format, + desc->b.b.nr_samples, + desc->microtile, + desc->macrotile[level], + DIM_WIDTH); + width = align(width, tile_width); + + stride = util_format_get_stride(desc->b.b.format, width); + + /* Some IGPs need a minimum stride of 64 bytes, hmm... + * This doesn't seem to apply to tiled textures, according to r300c. */ + if (!desc->microtile && !desc->macrotile[level] && + (screen->caps.family == CHIP_FAMILY_RS600 || + screen->caps.family == CHIP_FAMILY_RS690 || + screen->caps.family == CHIP_FAMILY_RS740)) { + return stride < 64 ? 64 : stride; + } + + /* The alignment to 32 bytes is sort of implied by the layout... */ + return stride; + } else { + return align(util_format_get_stride(desc->b.b.format, width), 32); + } +} + +static unsigned r300_texture_get_nblocksy(struct r300_texture_desc *desc, + unsigned level, + boolean align_for_cbzb) +{ + unsigned height, tile_height; + + height = u_minify(desc->b.b.height0, level); + + if (util_format_is_plain(desc->b.b.format)) { + tile_height = r300_get_pixel_alignment(desc->b.b.format, + desc->b.b.nr_samples, + desc->microtile, + desc->macrotile[level], + DIM_HEIGHT); + height = align(height, tile_height); + + /* This is needed for the kernel checker, unfortunately. */ + if ((desc->b.b.target != PIPE_TEXTURE_1D && + desc->b.b.target != PIPE_TEXTURE_2D) || + desc->b.b.last_level != 0) { + height = util_next_power_of_two(height); + } + + /* Allocate an even number of macrotiles for the CBZB clear. + * Do so for 3 or more macrotiles in the Y direction. */ + if (align_for_cbzb && + level == 0 && desc->b.b.last_level == 0 && + desc->macrotile[0] && height >= tile_height * 3) { + height = align(height, tile_height * 2); + } + } + + return util_format_get_nblocksy(desc->b.b.format, height); +} + +static void r300_texture_3d_fix_mipmapping(struct r300_screen *screen, + struct r300_texture_desc *desc) +{ + /* The kernels <= 2.6.34-rc4 compute the size of mipmapped 3D textures + * incorrectly. This is a workaround to prevent CS from being rejected. */ + + unsigned i, size; + + if (!screen->rws->get_value(screen->rws, R300_VID_DRM_2_3_0) && + desc->b.b.target == PIPE_TEXTURE_3D && + desc->b.b.last_level > 0) { + size = 0; + + for (i = 0; i <= desc->b.b.last_level; i++) { + size += desc->stride_in_bytes[i] * + r300_texture_get_nblocksy(desc, i, FALSE); + } + + size *= desc->b.b.depth0; + desc->size_in_bytes = size; + } +} + +static void r300_setup_miptree(struct r300_screen *screen, + struct r300_texture_desc *desc) +{ + struct pipe_resource *base = &desc->b.b; + unsigned stride, size, layer_size, nblocksy, i; + boolean rv350_mode = screen->caps.is_rv350; + + SCREEN_DBG(screen, DBG_TEXALLOC, + "r300: Making miptree for texture, format %s\n", + util_format_short_name(base->format)); + + for (i = 0; i <= base->last_level; i++) { + /* Let's see if this miplevel can be macrotiled. */ + desc->macrotile[i] = + (desc->macrotile[0] == R300_BUFFER_TILED && + r300_texture_macro_switch(desc, i, rv350_mode, DIM_WIDTH) && + r300_texture_macro_switch(desc, i, rv350_mode, DIM_HEIGHT)) ? + R300_BUFFER_TILED : R300_BUFFER_LINEAR; + + stride = r300_texture_get_stride(screen, desc, i); + nblocksy = r300_texture_get_nblocksy(desc, i, desc->stride_in_bytes_override == 0); + layer_size = stride * nblocksy; + + if (base->nr_samples) { + layer_size *= base->nr_samples; + } + + if (base->target == PIPE_TEXTURE_CUBE) + size = layer_size * 6; + else + size = layer_size * u_minify(base->depth0, i); + + desc->offset_in_bytes[i] = desc->size_in_bytes; + desc->size_in_bytes = desc->offset_in_bytes[i] + size; + desc->layer_size_in_bytes[i] = layer_size; + desc->stride_in_bytes[i] = stride; + desc->stride_in_pixels[i] = + (stride / util_format_get_blocksize(base->format)) * + util_format_get_blockwidth(base->format); + + SCREEN_DBG(screen, DBG_TEXALLOC, "r300: Texture miptree: Level %d " + "(%dx%dx%d px, pitch %d bytes) %d bytes total, macrotiled %s\n", + i, u_minify(base->width0, i), u_minify(base->height0, i), + u_minify(base->depth0, i), stride, desc->size_in_bytes, + desc->macrotile[i] ? "TRUE" : "FALSE"); + } +} + +static void r300_setup_flags(struct r300_texture_desc *desc) +{ + desc->uses_stride_addressing = + !util_is_power_of_two(desc->b.b.width0) || + !util_is_power_of_two(desc->b.b.height0) || + desc->stride_in_bytes_override; +} + +static void r300_setup_cbzb_flags(struct r300_screen *rscreen, + struct r300_texture_desc *desc) +{ + unsigned i, bpp; + boolean first_level_valid; + + bpp = util_format_get_blocksizebits(desc->b.b.format); + + /* 1) The texture must be point-sampled, + * 2) The depth must be 16 or 32 bits. + * 3) If the midpoint ZB offset is not aligned to 2048, it returns garbage + * with certain texture sizes. Macrotiling ensures the alignment. */ + first_level_valid = desc->b.b.nr_samples <= 1 && + (bpp == 16 || bpp == 32) && + desc->macrotile[0]; + + for (i = 0; i <= desc->b.b.last_level; i++) + desc->cbzb_allowed[i] = first_level_valid && desc->macrotile[i]; + return; +#if 0 + /* When clearing, the layer (width*height) is horizontally split + * into two, and the upper and lower halves are cleared by the CB + * and ZB units, respectively. Therefore, the number of macrotiles + * in the Y direction must be even. */ + + if (desc->b.b.last_level > 0 || + desc->b.b.target == PIPE_TEXTURE_3D || + desc->b.b.target == PIPE_TEXTURE_CUBE) { + /* For mipmapped, 3D, or cube textures, just check if there are + * enough macrotiles per layer. */ + for (i = 0; i <= desc->b.b.last_level; i++) { + desc->cbzb_allowed[i] = FALSE; + + if (first_level_valid && desc->macrotile[i]) { + unsigned height, tile_height, num_macrotiles; + + /* Compute the number of macrotiles in the Y direction. */ + tile_height = r300_get_pixel_alignment(desc->b.b.format, + desc->b.b.nr_samples, + desc->microtile, + R300_BUFFER_TILED, + DIM_HEIGHT); + height = r300_texture_get_height(desc, i); + num_macrotiles = height / tile_height; + + desc->cbzb_allowed[i] = num_macrotiles % 2 == 0; + } + } + } else { + /* For 1D and 2D non-mipmapped textures */ + unsigned layer_size; + + layer_size = desc->stride_in_bytes[0] * + r300_texture_get_nblocksy(desc, 0, TRUE); + } +#endif +} + +static void r300_setup_tiling(struct r300_screen *screen, + struct r300_texture_desc *desc) +{ + struct r300_winsys_screen *rws = screen->rws; + enum pipe_format format = desc->b.b.format; + boolean rv350_mode = screen->caps.is_rv350; + boolean is_zb = util_format_is_depth_or_stencil(format); + boolean dbg_no_tiling = SCREEN_DBG_ON(screen, DBG_NO_TILING); + + if (!util_format_is_plain(format)) { + return; + } + + /* If height == 1, disable microtiling except for zbuffer. */ + if (!is_zb && (desc->b.b.height0 == 1 || dbg_no_tiling)) { + return; + } + + /* Set microtiling. */ + switch (util_format_get_blocksize(format)) { + case 1: + case 4: + desc->microtile = R300_BUFFER_TILED; + break; + + case 2: + case 8: + if (rws->get_value(rws, R300_VID_SQUARE_TILING_SUPPORT)) { + desc->microtile = R300_BUFFER_SQUARETILED; + } + break; + } + + if (dbg_no_tiling) { + return; + } + + /* Set macrotiling. */ + if (r300_texture_macro_switch(desc, 0, rv350_mode, DIM_WIDTH) && + r300_texture_macro_switch(desc, 0, rv350_mode, DIM_HEIGHT)) { + desc->macrotile[0] = R300_BUFFER_TILED; + } +} + +static void r300_tex_print_info(struct r300_screen *rscreen, + struct r300_texture_desc *desc, + const char *func) +{ + fprintf(stderr, + "r300: %s: Macro: %s, Micro: %s, Pitch: %i, Dim: %ix%ix%i, " + "LastLevel: %i, Size: %i, Format: %s\n", + func, + desc->macrotile[0] ? "YES" : " NO", + desc->microtile ? "YES" : " NO", + desc->stride_in_pixels[0], + desc->b.b.width0, desc->b.b.height0, desc->b.b.depth0, + desc->b.b.last_level, desc->size_in_bytes, + util_format_short_name(desc->b.b.format)); +} + +boolean r300_texture_desc_init(struct r300_screen *rscreen, + struct r300_texture_desc *desc, + const struct pipe_resource *base, + enum r300_buffer_tiling microtile, + enum r300_buffer_tiling macrotile, + unsigned stride_in_bytes_override, + unsigned max_buffer_size) +{ + desc->b.b = *base; + desc->b.b.screen = &rscreen->screen; + + desc->stride_in_bytes_override = stride_in_bytes_override; + + r300_setup_flags(desc); + + if (microtile == R300_BUFFER_SELECT_LAYOUT || + macrotile == R300_BUFFER_SELECT_LAYOUT) { + r300_setup_tiling(rscreen, desc); + } else { + desc->microtile = microtile; + desc->macrotile[0] = macrotile; + assert(desc->b.b.last_level == 0); + } + + r300_setup_miptree(rscreen, desc); + r300_texture_3d_fix_mipmapping(rscreen, desc); + r300_setup_cbzb_flags(rscreen, desc); + + if (max_buffer_size) { + /* Make sure the buffer we got is large enough. */ + if (desc->size_in_bytes > max_buffer_size) { + fprintf(stderr, "r300: texture_from_handle: The buffer is not " + "large enough. Got: %i, Need: %i, Info:\n", + max_buffer_size, desc->size_in_bytes); + r300_tex_print_info(rscreen, desc, "texture_from_handle"); + return FALSE; + } + + desc->buffer_size_in_bytes = max_buffer_size; + } else { + desc->buffer_size_in_bytes = desc->size_in_bytes; + + } + + if (SCREEN_DBG_ON(rscreen, DBG_TEX)) + r300_tex_print_info(rscreen, desc, "texture_from_handle"); + + return TRUE; +} + +unsigned r300_texture_get_offset(struct r300_texture_desc *desc, + unsigned level, unsigned zslice, + unsigned face) +{ + unsigned offset = desc->offset_in_bytes[level]; + + switch (desc->b.b.target) { + case PIPE_TEXTURE_3D: + assert(face == 0); + return offset + zslice * desc->layer_size_in_bytes[level]; + + case PIPE_TEXTURE_CUBE: + assert(zslice == 0); + return offset + face * desc->layer_size_in_bytes[level]; + + default: + assert(zslice == 0 && face == 0); + return offset; + } +} -- cgit v1.2.3