diff options
Diffstat (limited to 'src/gallium/drivers/cell/spu/spu_per_fragment_op.c')
-rw-r--r-- | src/gallium/drivers/cell/spu/spu_per_fragment_op.c | 236 |
1 files changed, 24 insertions, 212 deletions
diff --git a/src/gallium/drivers/cell/spu/spu_per_fragment_op.c b/src/gallium/drivers/cell/spu/spu_per_fragment_op.c index ffc596aa62..9ed5fc50cd 100644 --- a/src/gallium/drivers/cell/spu/spu_per_fragment_op.c +++ b/src/gallium/drivers/cell/spu/spu_per_fragment_op.c @@ -1,32 +1,32 @@ -/* - * (C) Copyright IBM Corporation 2008 +/************************************************************************** + * + * 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 - * 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 - * AUTHORS, COPYRIGHT HOLDERS, 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. - */ + * 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. + * + **************************************************************************/ /** - * \file spu_per_fragment_op.c - * SPU implementation various per-fragment operations. - * - * \author Ian Romanick <idr@us.ibm.com> + * \author Brian Paul */ @@ -36,194 +36,6 @@ #include "spu_colorpack.h" #include "spu_per_fragment_op.h" -#define ZERO 0x80 - - -/** - * Get a "quad" of four fragment Z/stencil values from the given tile. - * \param tile the tile of Z/stencil values - * \param x, y location of the quad in the tile, in pixels - * \param depth_format format of the tile's data - * \param detph returns four depth values - * \param stencil returns four stencil values - */ -static void -read_ds_quad(tile_t *tile, unsigned x, unsigned y, - enum pipe_format depth_format, qword *depth, - qword *stencil) -{ - const int ix = x / 2; - const int iy = y / 2; - - switch (depth_format) { - case PIPE_FORMAT_Z16_UNORM: { - qword *ptr = (qword *) &tile->us8[iy][ix / 2]; - - const qword shuf_vec = (qword) { - ZERO, ZERO, 0, 1, ZERO, ZERO, 2, 3, - ZERO, ZERO, 4, 5, ZERO, ZERO, 6, 7 - }; - - /* At even X values we want the first 4 shorts, and at odd X values we - * want the second 4 shorts. - */ - qword bias = (qword) spu_splats((unsigned char) ((ix & 0x01) << 3)); - qword bias_mask = si_fsmbi(0x3333); - qword sv = si_a(shuf_vec, si_and(bias_mask, bias)); - - *depth = si_shufb(*ptr, *ptr, sv); - *stencil = si_il(0); - break; - } - - case PIPE_FORMAT_Z32_UNORM: { - qword *ptr = (qword *) &tile->ui4[iy][ix]; - - *depth = *ptr; - *stencil = si_il(0); - break; - } - - case PIPE_FORMAT_Z24S8_UNORM: { - qword *ptr = (qword *) &tile->ui4[iy][ix]; - qword mask = si_fsmbi(0xEEEE); - - *depth = si_rotmai(si_and(*ptr, mask), -8); - *stencil = si_andc(*ptr, mask); - break; - } - - case PIPE_FORMAT_S8Z24_UNORM: - case PIPE_FORMAT_X8Z24_UNORM: { - qword *ptr = (qword *) &tile->ui4[iy][ix]; - - *depth = si_and(*ptr, si_fsmbi(0x7777)); - *stencil = si_andi(si_roti(*ptr, 8), 0x0ff); - break; - } - - default: - ASSERT(0); - break; - } -} - - -/** - * Put a quad of Z/stencil values into a tile. - * \param tile the tile of Z/stencil values to write into - * \param x, y location of the quad in the tile, in pixels - * \param depth_format format of the tile's data - * \param detph depth values to store - * \param stencil stencil values to store - */ -static void -write_ds_quad(tile_t *buffer, unsigned x, unsigned y, - enum pipe_format depth_format, - qword depth, qword stencil) -{ - const int ix = x / 2; - const int iy = y / 2; - - (void) stencil; - - switch (depth_format) { - case PIPE_FORMAT_Z16_UNORM: { - qword *ptr = (qword *) &buffer->us8[iy][ix / 2]; - - qword sv = ((ix & 0x01) == 0) - ? (qword) { 2, 3, 6, 7, 10, 11, 14, 15, - 24, 25, 26, 27, 28, 29, 30, 31 } - : (qword) { 16, 17, 18, 19, 20 , 21, 22, 23, - 2, 3, 6, 7, 10, 11, 14, 15 }; - *ptr = si_shufb(depth, *ptr, sv); - break; - } - - case PIPE_FORMAT_Z32_UNORM: { - qword *ptr = (qword *) &buffer->ui4[iy][ix]; - *ptr = depth; - break; - } - - case PIPE_FORMAT_Z24S8_UNORM: { - qword *ptr = (qword *) &buffer->ui4[iy][ix]; - /* form select mask = 1110,1110,1110,1110 */ - qword mask = si_fsmbi(0xEEEE); - /* depth[i] = depth[i] << 8 */ - depth = si_shli(depth, 8); - /* *ptr[i] = depth[i][31:8] | stencil[i][7:0] */ - *ptr = si_selb(stencil, depth, mask); - break; - } - - case PIPE_FORMAT_S8Z24_UNORM: - case PIPE_FORMAT_X8Z24_UNORM: { - qword *ptr = (qword *) &buffer->ui4[iy][ix]; - /* form select mask = 0111,0111,0111,0111 */ - qword mask = si_fsmbi(0x7777); - /* stencil[i] = stencil[i] << 24 */ - stencil = si_shli(stencil, 24); - /* *ptr[i] = stencil[i][31:24] | depth[i][23:0] */ - *ptr = si_selb(stencil, depth, mask); - break; - } - - default: - ASSERT(0); - break; - } -} - - -/** - * Do depth/stencil/alpha test for a "quad" of 4 fragments. - * \param x,y location of quad within tile - * \param frag_mask indicates which fragments are "alive" - * \param frag_depth four fragment depth values - * \param frag_alpha four fragment alpha values - * \param facing front/back facing for four fragments (1=front, 0=back) - */ -qword -spu_do_depth_stencil(int x, int y, - qword frag_mask, qword frag_depth, qword frag_alpha, - qword facing) -{ - struct spu_frag_test_results result; - qword pixel_depth; - qword pixel_stencil; - - /* All of this preable code (everthing before the call to frag_test) should - * be generated on the PPU and upload to the SPU. - */ - if (spu.read_depth || spu.read_stencil) { - read_ds_quad(&spu.ztile, x, y, spu.fb.depth_format, - &pixel_depth, &pixel_stencil); - } - - /* convert floating point Z values to 32-bit uint */ - - /* frag_depth *= spu.fb.zscale */ - frag_depth = si_fm(frag_depth, (qword)spu_splats(spu.fb.zscale)); - /* frag_depth = uint(frag_depth) */ - frag_depth = si_cfltu(frag_depth, 0); - - result = (*spu.frag_test)(frag_mask, pixel_depth, pixel_stencil, - frag_depth, frag_alpha, facing); - - - /* This code (everthing after the call to frag_test) should - * be generated on the PPU and upload to the SPU. - */ - if (spu.read_depth || spu.read_stencil) { - write_ds_quad(&spu.ztile, x, y, spu.fb.depth_format, - result.depth, result.stencil); - } - - return result.mask; -} - - /** |