X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fgallium%2Fdrivers%2Fsoftpipe%2Fsp_quad_depth_test.c;h=4ee31969e6b2af34a826454d34608b4fe617efd4;hb=1318848f782cce716d6376ca13aebf68b728e24c;hp=ce1bab9341a7f4cd2634f05a17f2255da5ff6fca;hpb=b626176f0613852df908b4b0552b9b67d5830b4e;p=mesa.git diff --git a/src/gallium/drivers/softpipe/sp_quad_depth_test.c b/src/gallium/drivers/softpipe/sp_quad_depth_test.c index ce1bab9341a..4ee31969e6b 100644 --- a/src/gallium/drivers/softpipe/sp_quad_depth_test.c +++ b/src/gallium/drivers/softpipe/sp_quad_depth_test.c @@ -1,6 +1,7 @@ /************************************************************************** * * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * Copyright 2010 VMware, Inc. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a @@ -18,7 +19,7 @@ * 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 + * IN NO EVENT SHALL THE AUTHORS 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. @@ -26,15 +27,15 @@ **************************************************************************/ /** - * \brief Quad depth testing + * \brief Quad depth / stencil testing */ #include "pipe/p_defines.h" +#include "util/u_format.h" #include "util/u_memory.h" #include "tgsi/tgsi_scan.h" #include "sp_context.h" #include "sp_quad.h" -#include "sp_surface.h" #include "sp_quad_pipe.h" #include "sp_tile_cache.h" #include "sp_state.h" /* for sp_fragment_shader */ @@ -73,8 +74,8 @@ get_depth_stencil_values( struct depth_data *data, data->bzzzz[j] = tile->data.depth32[y][x]; } break; - case PIPE_FORMAT_X8Z24_UNORM: - case PIPE_FORMAT_S8Z24_UNORM: + case PIPE_FORMAT_Z24X8_UNORM: + case PIPE_FORMAT_Z24_UNORM_S8_USCALED: for (j = 0; j < QUAD_SIZE; j++) { int x = quad->input.x0 % TILE_SIZE + (j & 1); int y = quad->input.y0 % TILE_SIZE + (j >> 1); @@ -82,8 +83,8 @@ get_depth_stencil_values( struct depth_data *data, data->stencilVals[j] = tile->data.depth32[y][x] >> 24; } break; - case PIPE_FORMAT_Z24X8_UNORM: - case PIPE_FORMAT_Z24S8_UNORM: + case PIPE_FORMAT_X8Z24_UNORM: + case PIPE_FORMAT_S8_USCALED_Z24_UNORM: for (j = 0; j < QUAD_SIZE; j++) { int x = quad->input.x0 % TILE_SIZE + (j & 1); int y = quad->input.y0 % TILE_SIZE + (j >> 1); @@ -96,7 +97,9 @@ get_depth_stencil_values( struct depth_data *data, } } -/* If the shader has not been run, interpolate the depth values + +/** + * If the shader has not been run, interpolate the depth values * ourselves. */ static void @@ -115,6 +118,9 @@ interpolate_quad_depth( struct quad_header *quad ) } +/** + * Compute the depth_data::qzzzz[] values from the float fragment Z values. + */ static void convert_quad_depth( struct depth_data *data, const struct quad_header *quad ) @@ -146,8 +152,8 @@ convert_quad_depth( struct depth_data *data, } } break; - case PIPE_FORMAT_X8Z24_UNORM: - case PIPE_FORMAT_S8Z24_UNORM: + case PIPE_FORMAT_Z24X8_UNORM: + case PIPE_FORMAT_Z24_UNORM_S8_USCALED: { float scale = (float) ((1 << 24) - 1); @@ -156,8 +162,8 @@ convert_quad_depth( struct depth_data *data, } } break; - case PIPE_FORMAT_Z24X8_UNORM: - case PIPE_FORMAT_Z24S8_UNORM: + case PIPE_FORMAT_X8Z24_UNORM: + case PIPE_FORMAT_S8_USCALED_Z24_UNORM: { float scale = (float) ((1 << 24) - 1); @@ -173,6 +179,9 @@ convert_quad_depth( struct depth_data *data, +/** + * Write data->bzzzz[] values and data->stencilVals into the Z/stencil buffer. + */ static void write_depth_stencil_values( struct depth_data *data, struct quad_header *quad ) @@ -189,7 +198,7 @@ write_depth_stencil_values( struct depth_data *data, tile->data.depth16[y][x] = (ushort) data->bzzzz[j]; } break; - case PIPE_FORMAT_X8Z24_UNORM: + case PIPE_FORMAT_Z24X8_UNORM: case PIPE_FORMAT_Z32_UNORM: for (j = 0; j < QUAD_SIZE; j++) { int x = quad->input.x0 % TILE_SIZE + (j & 1); @@ -197,21 +206,21 @@ write_depth_stencil_values( struct depth_data *data, tile->data.depth32[y][x] = data->bzzzz[j]; } break; - case PIPE_FORMAT_S8Z24_UNORM: + case PIPE_FORMAT_Z24_UNORM_S8_USCALED: for (j = 0; j < QUAD_SIZE; j++) { int x = quad->input.x0 % TILE_SIZE + (j & 1); int y = quad->input.y0 % TILE_SIZE + (j >> 1); tile->data.depth32[y][x] = (data->stencilVals[j] << 24) | data->bzzzz[j]; } break; - case PIPE_FORMAT_Z24S8_UNORM: + case PIPE_FORMAT_S8_USCALED_Z24_UNORM: for (j = 0; j < QUAD_SIZE; j++) { int x = quad->input.x0 % TILE_SIZE + (j & 1); int y = quad->input.y0 % TILE_SIZE + (j >> 1); tile->data.depth32[y][x] = (data->bzzzz[j] << 8) | data->stencilVals[j]; } break; - case PIPE_FORMAT_Z24X8_UNORM: + case PIPE_FORMAT_X8Z24_UNORM: for (j = 0; j < QUAD_SIZE; j++) { int x = quad->input.x0 % TILE_SIZE + (j & 1); int y = quad->input.y0 % TILE_SIZE + (j >> 1); @@ -225,7 +234,6 @@ write_depth_stencil_values( struct depth_data *data, - /** Only 8-bit stencil supported */ #define STENCIL_MAX 0xff @@ -408,12 +416,11 @@ apply_stencil_op(struct depth_data *data, -/* +/** * To increase efficiency, we should probably have multiple versions * of this function that are specifically for Z16, Z32 and FP Z buffers. * Try to effectively do that with codegen... */ - static boolean depth_test_quad(struct quad_stage *qs, struct depth_data *data, @@ -498,7 +505,7 @@ depth_test_quad(struct quad_stage *qs, * Do stencil (and depth) testing. Stenciling depends on the outcome of * depth testing. */ -static boolean +static void depth_stencil_test_quad(struct quad_stage *qs, struct depth_data *data, struct quad_header *quad) @@ -519,11 +526,10 @@ depth_stencil_test_quad(struct quad_stage *qs, failOp = softpipe->depth_stencil->stencil[face].fail_op; zFailOp = softpipe->depth_stencil->stencil[face].zfail_op; zPassOp = softpipe->depth_stencil->stencil[face].zpass_op; - ref = softpipe->depth_stencil->stencil[face].ref_value; + ref = softpipe->stencil_ref.ref_value[face]; wrtMask = softpipe->depth_stencil->stencil[face].writemask; valMask = softpipe->depth_stencil->stencil[face].valuemask; - /* do the stencil test first */ { unsigned passMask, failMask; @@ -545,13 +551,13 @@ depth_stencil_test_quad(struct quad_stage *qs, /* update stencil buffer values according to z pass/fail result */ if (zFailOp != PIPE_STENCIL_OP_KEEP) { - const unsigned failMask = origMask & ~quad->inout.mask; - apply_stencil_op(data, failMask, zFailOp, ref, wrtMask); + const unsigned zFailMask = origMask & ~quad->inout.mask; + apply_stencil_op(data, zFailMask, zFailOp, ref, wrtMask); } if (zPassOp != PIPE_STENCIL_OP_KEEP) { - const unsigned passMask = origMask & quad->inout.mask; - apply_stencil_op(data, passMask, zPassOp, ref, wrtMask); + const unsigned zPassMask = origMask & quad->inout.mask; + apply_stencil_op(data, zPassMask, zPassOp, ref, wrtMask); } } else { @@ -559,13 +565,11 @@ depth_stencil_test_quad(struct quad_stage *qs, apply_stencil_op(data, quad->inout.mask, zPassOp, ref, wrtMask); } } - - return quad->inout.mask != 0; } #define ALPHATEST( FUNC, COMP ) \ - static int \ + static int \ alpha_test_quads_##FUNC( struct quad_stage *qs, \ struct quad_header *quads[], \ unsigned nr ) \ @@ -631,6 +635,7 @@ alpha_test_quads(struct quad_stage *qs, } } + static unsigned mask_count[16] = { 0, /* 0x0 */ @@ -653,6 +658,23 @@ static unsigned mask_count[16] = +/** helper to get number of Z buffer bits */ +static unsigned +get_depth_bits(struct quad_stage *qs) +{ + struct pipe_surface *zsurf = qs->softpipe->framebuffer.zsbuf; + if (zsurf) + return util_format_get_component_bits(zsurf->format, + UTIL_FORMAT_COLORSPACE_ZS, 0); + else + return 0; +} + + + +/** + * General depth/stencil test function. Used when there's no fast-path. + */ static void depth_test_quads_fallback(struct quad_stage *qs, struct quad_header *quads[], @@ -668,7 +690,7 @@ depth_test_quads_fallback(struct quad_stage *qs, nr = alpha_test_quads(qs, quads, nr); } - if (qs->softpipe->framebuffer.zsbuf && + if (get_depth_bits(qs) > 0 && (qs->softpipe->depth_stencil->depth.enabled || qs->softpipe->depth_stencil->stencil[0].enabled)) { @@ -689,17 +711,16 @@ depth_test_quads_fallback(struct quad_stage *qs, } if (qs->softpipe->depth_stencil->stencil[0].enabled) { - if (!depth_stencil_test_quad(qs, &data, quads[i])) - continue; + depth_stencil_test_quad(qs, &data, quads[i]); + write_depth_stencil_values(&data, quads[i]); } else { if (!depth_test_quad(qs, &data, quads[i])) continue; - } - if (qs->softpipe->depth_stencil->stencil[0].enabled || - qs->softpipe->depth_stencil->depth.writemask) - write_depth_stencil_values(&data, quads[i]); + if (qs->softpipe->depth_stencil->depth.writemask) + write_depth_stencil_values(&data, quads[i]); + } quads[pass++] = quads[i]; } @@ -716,154 +737,38 @@ depth_test_quads_fallback(struct quad_stage *qs, qs->next->run(qs->next, quads, nr); } -/* XXX: this function assumes setup function actually emits linear - * spans of quads. It seems a lot more natural to do (early) - * depth-testing on spans rather than quads. - */ -static void -depth_interp_z16_less_write(struct quad_stage *qs, - struct quad_header *quads[], - unsigned nr) -{ - unsigned i, pass = 0; - const unsigned ix = quads[0]->input.x0; - const unsigned iy = quads[0]->input.y0; - const float fx = (float) ix; - const float fy = (float) iy; - const float dzdx = quads[0]->posCoef->dadx[2]; - const float dzdy = quads[0]->posCoef->dady[2]; - const float z0 = quads[0]->posCoef->a0[2] + dzdx * fx + dzdy * fy; - struct softpipe_cached_tile *tile; - ushort (*depth16)[TILE_SIZE]; - ushort idepth[4], depth_step; - const float scale = 65535.0; - - idepth[0] = (ushort)((z0) * scale); - idepth[1] = (ushort)((z0 + dzdx) * scale); - idepth[2] = (ushort)((z0 + dzdy) * scale); - idepth[3] = (ushort)((z0 + dzdx + dzdy) * scale); - depth_step = (ushort)(dzdx * 2 * scale); - - tile = sp_get_cached_tile(qs->softpipe->zsbuf_cache, ix, iy); - - depth16 = (ushort (*)[TILE_SIZE]) - &tile->data.depth16[iy % TILE_SIZE][ix % TILE_SIZE]; - - for (i = 0; i < nr; i++) { - unsigned outmask = quads[i]->inout.mask; - unsigned mask = 0; - - if ((outmask & 1) && idepth[0] < depth16[0][0]) { - depth16[0][0] = idepth[0]; - mask |= (1 << 0); - } - - if ((outmask & 2) && idepth[1] < depth16[0][1]) { - depth16[0][1] = idepth[1]; - mask |= (1 << 1); - } - - if ((outmask & 4) && idepth[2] < depth16[1][0]) { - depth16[1][0] = idepth[2]; - mask |= (1 << 2); - } - - if ((outmask & 8) && idepth[3] < depth16[1][1]) { - depth16[1][1] = idepth[3]; - mask |= (1 << 3); - } - - idepth[0] += depth_step; - idepth[1] += depth_step; - idepth[2] += depth_step; - idepth[3] += depth_step; - - depth16 = (ushort (*)[TILE_SIZE]) &depth16[0][2]; - - quads[i]->inout.mask = mask; - if (quads[i]->inout.mask) - quads[pass++] = quads[i]; - } - - if (pass) - qs->next->run(qs->next, quads, pass); - -} - - -static void -depth_interp_z16_lequal_write(struct quad_stage *qs, - struct quad_header *quads[], - unsigned nr) -{ - unsigned i, pass = 0; - const unsigned ix = quads[0]->input.x0; - const unsigned iy = quads[0]->input.y0; - const float fx = (float) ix; - const float fy = (float) iy; - const float dzdx = quads[0]->posCoef->dadx[2]; - const float dzdy = quads[0]->posCoef->dady[2]; - const float z0 = quads[0]->posCoef->a0[2] + dzdx * fx + dzdy * fy; - struct softpipe_cached_tile *tile; - ushort (*depth16)[TILE_SIZE]; - ushort idepth[4], depth_step; - const float scale = 65535.0; - - idepth[0] = (ushort)((z0) * scale); - idepth[1] = (ushort)((z0 + dzdx) * scale); - idepth[2] = (ushort)((z0 + dzdy) * scale); - idepth[3] = (ushort)((z0 + dzdx + dzdy) * scale); - - depth_step = (ushort)(dzdx * 2 * scale); - - tile = sp_get_cached_tile(qs->softpipe->zsbuf_cache, ix, iy); - - depth16 = (ushort (*)[TILE_SIZE]) - &tile->data.depth16[iy % TILE_SIZE][ix % TILE_SIZE]; - - for (i = 0; i < nr; i++) { - unsigned outmask = quads[i]->inout.mask; - unsigned mask = 0; - - if ((outmask & 1) && idepth[0] <= depth16[0][0]) { - depth16[0][0] = idepth[0]; - mask |= (1 << 0); - } - - if ((outmask & 2) && idepth[1] <= depth16[0][1]) { - depth16[0][1] = idepth[1]; - mask |= (1 << 1); - } +/** + * Special-case Z testing for 16-bit Zbuffer and Z buffer writes enabled. + */ - if ((outmask & 4) && idepth[2] <= depth16[1][0]) { - depth16[1][0] = idepth[2]; - mask |= (1 << 2); - } +#define NAME depth_interp_z16_less_write +#define OPERATOR < +#include "sp_quad_depth_test_tmp.h" - if ((outmask & 8) && idepth[3] <= depth16[1][1]) { - depth16[1][1] = idepth[3]; - mask |= (1 << 3); - } +#define NAME depth_interp_z16_equal_write +#define OPERATOR == +#include "sp_quad_depth_test_tmp.h" - idepth[0] += depth_step; - idepth[1] += depth_step; - idepth[2] += depth_step; - idepth[3] += depth_step; +#define NAME depth_interp_z16_lequal_write +#define OPERATOR <= +#include "sp_quad_depth_test_tmp.h" - depth16 = (ushort (*)[TILE_SIZE]) &depth16[0][2]; +#define NAME depth_interp_z16_greater_write +#define OPERATOR > +#include "sp_quad_depth_test_tmp.h" - quads[i]->inout.mask = mask; - if (quads[i]->inout.mask) - quads[pass++] = quads[i]; - } - - if (pass) - qs->next->run(qs->next, quads, pass); - -} +#define NAME depth_interp_z16_notequal_write +#define OPERATOR != +#include "sp_quad_depth_test_tmp.h" +#define NAME depth_interp_z16_gequal_write +#define OPERATOR >= +#include "sp_quad_depth_test_tmp.h" +#define NAME depth_interp_z16_always_write +#define ALWAYS 1 +#include "sp_quad_depth_test_tmp.h" @@ -886,7 +791,7 @@ choose_depth_test(struct quad_stage *qs, boolean alpha = qs->softpipe->depth_stencil->alpha.enabled; - boolean depth = (qs->softpipe->framebuffer.zsbuf && + boolean depth = (get_depth_bits(qs) > 0 && qs->softpipe->depth_stencil->depth.enabled); unsigned depthfunc = qs->softpipe->depth_stencil->depth.func; @@ -897,7 +802,10 @@ choose_depth_test(struct quad_stage *qs, boolean occlusion = qs->softpipe->active_query_count; + /* default */ + qs->run = depth_test_quads_fallback; + /* look for special cases */ if (!alpha && !depth && !stencil) { @@ -910,57 +818,62 @@ choose_depth_test(struct quad_stage *qs, !occlusion && !stencil) { - switch (depthfunc) { - case PIPE_FUNC_LESS: - switch (qs->softpipe->framebuffer.zsbuf->format) { - case PIPE_FORMAT_Z16_UNORM: + if (qs->softpipe->framebuffer.zsbuf->format == PIPE_FORMAT_Z16_UNORM) { + switch (depthfunc) { + case PIPE_FUNC_NEVER: + qs->run = depth_test_quads_fallback; + break; + case PIPE_FUNC_LESS: qs->run = depth_interp_z16_less_write; break; - default: - qs->run = depth_test_quads_fallback; + case PIPE_FUNC_EQUAL: + qs->run = depth_interp_z16_equal_write; break; - } - break; - case PIPE_FUNC_LEQUAL: - switch (qs->softpipe->framebuffer.zsbuf->format) { - case PIPE_FORMAT_Z16_UNORM: + case PIPE_FUNC_LEQUAL: qs->run = depth_interp_z16_lequal_write; break; + case PIPE_FUNC_GREATER: + qs->run = depth_interp_z16_greater_write; + break; + case PIPE_FUNC_NOTEQUAL: + qs->run = depth_interp_z16_notequal_write; + break; + case PIPE_FUNC_GEQUAL: + qs->run = depth_interp_z16_gequal_write; + break; + case PIPE_FUNC_ALWAYS: + qs->run = depth_interp_z16_always_write; + break; default: qs->run = depth_test_quads_fallback; break; } - break; - default: - qs->run = depth_test_quads_fallback; } } - else { - qs->run = depth_test_quads_fallback; - } - + /* next quad/fragment stage */ qs->run( qs, quads, nr ); } - - -static void depth_test_begin(struct quad_stage *qs) +static void +depth_test_begin(struct quad_stage *qs) { qs->run = choose_depth_test; qs->next->begin(qs->next); } -static void depth_test_destroy(struct quad_stage *qs) +static void +depth_test_destroy(struct quad_stage *qs) { FREE( qs ); } -struct quad_stage *sp_quad_depth_test_stage( struct softpipe_context *softpipe ) +struct quad_stage * +sp_quad_depth_test_stage(struct softpipe_context *softpipe) { struct quad_stage *stage = CALLOC_STRUCT(quad_stage);