diff options
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_tex_sample.c')
-rw-r--r-- | src/gallium/drivers/softpipe/sp_tex_sample.c | 253 |
1 files changed, 160 insertions, 93 deletions
diff --git a/src/gallium/drivers/softpipe/sp_tex_sample.c b/src/gallium/drivers/softpipe/sp_tex_sample.c index c22ee86..1ae8fec 100644 --- a/src/gallium/drivers/softpipe/sp_tex_sample.c +++ b/src/gallium/drivers/softpipe/sp_tex_sample.c @@ -2,7 +2,7 @@ * * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. * All Rights Reserved. - * Copyright 2008 VMware, Inc. All rights reserved. + * Copyright 2008-2010 VMware, Inc. All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the @@ -514,21 +514,15 @@ static float compute_lambda_1d(const struct sp_sampler_varient *samp, const float s[QUAD_SIZE], const float t[QUAD_SIZE], - const float p[QUAD_SIZE], - float lodbias) + const float p[QUAD_SIZE]) { const struct pipe_texture *texture = samp->texture; const struct pipe_sampler_state *sampler = samp->sampler; float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]); float dsdy = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]); - float rho = MAX2(dsdx, dsdy) * texture->width[0]; - float lambda; - - lambda = util_fast_log2(rho); - lambda += lodbias + sampler->lod_bias; - lambda = CLAMP(lambda, sampler->min_lod, sampler->max_lod); + float rho = MAX2(dsdx, dsdy) * texture->width0; - return lambda; + return util_fast_log2(rho); } @@ -536,8 +530,7 @@ static float compute_lambda_2d(const struct sp_sampler_varient *samp, const float s[QUAD_SIZE], const float t[QUAD_SIZE], - const float p[QUAD_SIZE], - float lodbias) + const float p[QUAD_SIZE]) { const struct pipe_texture *texture = samp->texture; const struct pipe_sampler_state *sampler = samp->sampler; @@ -545,16 +538,11 @@ compute_lambda_2d(const struct sp_sampler_varient *samp, float dsdy = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]); float dtdx = fabsf(t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]); float dtdy = fabsf(t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT]); - float maxx = MAX2(dsdx, dsdy) * texture->width[0]; - float maxy = MAX2(dtdx, dtdy) * texture->height[0]; + float maxx = MAX2(dsdx, dsdy) * texture->width0; + float maxy = MAX2(dtdx, dtdy) * texture->height0; float rho = MAX2(maxx, maxy); - float lambda; - lambda = util_fast_log2(rho); - lambda += lodbias + sampler->lod_bias; - lambda = CLAMP(lambda, sampler->min_lod, sampler->max_lod); - - return lambda; + return util_fast_log2(rho); } @@ -562,8 +550,7 @@ static float compute_lambda_3d(const struct sp_sampler_varient *samp, const float s[QUAD_SIZE], const float t[QUAD_SIZE], - const float p[QUAD_SIZE], - float lodbias) + const float p[QUAD_SIZE]) { const struct pipe_texture *texture = samp->texture; const struct pipe_sampler_state *sampler = samp->sampler; @@ -573,34 +560,29 @@ compute_lambda_3d(const struct sp_sampler_varient *samp, float dtdy = fabsf(t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT]); float dpdx = fabsf(p[QUAD_BOTTOM_RIGHT] - p[QUAD_BOTTOM_LEFT]); float dpdy = fabsf(p[QUAD_TOP_LEFT] - p[QUAD_BOTTOM_LEFT]); - float maxx = MAX2(dsdx, dsdy) * texture->width[0]; - float maxy = MAX2(dtdx, dtdy) * texture->height[0]; - float maxz = MAX2(dpdx, dpdy) * texture->depth[0]; - float rho, lambda; + float maxx = MAX2(dsdx, dsdy) * texture->width0; + float maxy = MAX2(dtdx, dtdy) * texture->height0; + float maxz = MAX2(dpdx, dpdy) * texture->depth0; + float rho; rho = MAX2(maxx, maxy); rho = MAX2(rho, maxz); - lambda = util_fast_log2(rho); - lambda += lodbias + sampler->lod_bias; - lambda = CLAMP(lambda, sampler->min_lod, sampler->max_lod); - - return lambda; + return util_fast_log2(rho); } /** * Compute lambda for a vertex texture sampler. - * Since there aren't derivatives to use, just return the LOD bias. + * Since there aren't derivatives to use, just return 0. */ static float compute_lambda_vert(const struct sp_sampler_varient *samp, const float s[QUAD_SIZE], const float t[QUAD_SIZE], - const float p[QUAD_SIZE], - float lodbias) + const float p[QUAD_SIZE]) { - return lodbias; + return 0.0f; } @@ -644,8 +626,8 @@ get_texel_2d(const struct sp_sampler_varient *samp, const struct pipe_texture *texture = samp->texture; unsigned level = addr.bits.level; - if (x < 0 || x >= (int) texture->width[level] || - y < 0 || y >= (int) texture->height[level]) { + if (x < 0 || x >= (int) u_minify(texture->width0, level) || + y < 0 || y >= (int) u_minify(texture->height0, level)) { return samp->sampler->border_color; } else { @@ -737,9 +719,9 @@ get_texel_3d(const struct sp_sampler_varient *samp, const struct pipe_texture *texture = samp->texture; unsigned level = addr.bits.level; - if (x < 0 || x >= (int) texture->width[level] || - y < 0 || y >= (int) texture->height[level] || - z < 0 || z >= (int) texture->depth[level]) { + if (x < 0 || x >= (int) u_minify(texture->width0, level) || + y < 0 || y >= (int) u_minify(texture->height0, level) || + z < 0 || z >= (int) u_minify(texture->depth0, level)) { return samp->sampler->border_color; } else { @@ -769,7 +751,8 @@ img_filter_2d_linear_repeat_POT(struct tgsi_sampler *tgsi_sampler, const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]) { const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); @@ -827,7 +810,8 @@ img_filter_2d_nearest_repeat_POT(struct tgsi_sampler *tgsi_sampler, const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]) { const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); @@ -866,7 +850,8 @@ img_filter_2d_nearest_clamp_POT(struct tgsi_sampler *tgsi_sampler, const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]) { const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); @@ -914,7 +899,8 @@ img_filter_1d_nearest(struct tgsi_sampler *tgsi_sampler, const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]) { const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); @@ -925,7 +911,7 @@ img_filter_1d_nearest(struct tgsi_sampler *tgsi_sampler, union tex_tile_address addr; level0 = samp->level; - width = texture->width[level0]; + width = u_minify(texture->width0, level0); assert(width > 0); @@ -949,7 +935,8 @@ img_filter_2d_nearest(struct tgsi_sampler *tgsi_sampler, const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]) { const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); @@ -961,8 +948,8 @@ img_filter_2d_nearest(struct tgsi_sampler *tgsi_sampler, level0 = samp->level; - width = texture->width[level0]; - height = texture->height[level0]; + width = u_minify(texture->width0, level0); + height = u_minify(texture->height0, level0); assert(width > 0); assert(height > 0); @@ -996,7 +983,8 @@ img_filter_cube_nearest(struct tgsi_sampler *tgsi_sampler, const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]) { const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); @@ -1008,8 +996,8 @@ img_filter_cube_nearest(struct tgsi_sampler *tgsi_sampler, union tex_tile_address addr; level0 = samp->level; - width = texture->width[level0]; - height = texture->height[level0]; + width = u_minify(texture->width0, level0); + height = u_minify(texture->height0, level0); assert(width > 0); assert(height > 0); @@ -1035,7 +1023,8 @@ img_filter_3d_nearest(struct tgsi_sampler *tgsi_sampler, const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]) { const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); @@ -1046,9 +1035,9 @@ img_filter_3d_nearest(struct tgsi_sampler *tgsi_sampler, union tex_tile_address addr; level0 = samp->level; - width = texture->width[level0]; - height = texture->height[level0]; - depth = texture->depth[level0]; + width = u_minify(texture->width0, level0); + height = u_minify(texture->height0, level0); + depth = u_minify(texture->depth0, level0); assert(width > 0); assert(height > 0); @@ -1076,7 +1065,8 @@ img_filter_1d_linear(struct tgsi_sampler *tgsi_sampler, const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]) { const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); @@ -1088,7 +1078,7 @@ img_filter_1d_linear(struct tgsi_sampler *tgsi_sampler, union tex_tile_address addr; level0 = samp->level; - width = texture->width[level0]; + width = u_minify(texture->width0, level0); assert(width > 0); @@ -1115,7 +1105,8 @@ img_filter_2d_linear(struct tgsi_sampler *tgsi_sampler, const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]) { const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); @@ -1127,8 +1118,8 @@ img_filter_2d_linear(struct tgsi_sampler *tgsi_sampler, union tex_tile_address addr; level0 = samp->level; - width = texture->width[level0]; - height = texture->height[level0]; + width = u_minify(texture->width0, level0); + height = u_minify(texture->height0, level0); assert(width > 0); assert(height > 0); @@ -1161,7 +1152,8 @@ img_filter_cube_linear(struct tgsi_sampler *tgsi_sampler, const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]) { const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); @@ -1174,8 +1166,8 @@ img_filter_cube_linear(struct tgsi_sampler *tgsi_sampler, union tex_tile_address addr; level0 = samp->level; - width = texture->width[level0]; - height = texture->height[level0]; + width = u_minify(texture->width0, level0); + height = u_minify(texture->height0, level0); assert(width > 0); assert(height > 0); @@ -1209,7 +1201,8 @@ img_filter_3d_linear(struct tgsi_sampler *tgsi_sampler, const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]) { const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); @@ -1221,9 +1214,9 @@ img_filter_3d_linear(struct tgsi_sampler *tgsi_sampler, union tex_tile_address addr; level0 = samp->level; - width = texture->width[level0]; - height = texture->height[level0]; - depth = texture->depth[level0]; + width = u_minify(texture->width0, level0); + height = u_minify(texture->height0, level0); + depth = u_minify(texture->depth0, level0); addr.value = 0; addr.bits.level = level0; @@ -1261,29 +1254,60 @@ img_filter_3d_linear(struct tgsi_sampler *tgsi_sampler, } +/* Calculate level of detail for every fragment. + * Note that lambda has already been biased by global LOD bias. + */ +static INLINE void +compute_lod(const struct pipe_sampler_state *sampler, + const float biased_lambda, + const float lodbias[QUAD_SIZE], + float lod[QUAD_SIZE]) +{ + uint i; + + for (i = 0; i < QUAD_SIZE; i++) { + lod[i] = biased_lambda + lodbias[i]; + lod[i] = CLAMP(lod[i], sampler->min_lod, sampler->max_lod); + } +} + + static void mip_filter_linear(struct tgsi_sampler *tgsi_sampler, const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]) { struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); const struct pipe_texture *texture = samp->texture; int level0; float lambda; + float lod[QUAD_SIZE]; + + if (control == tgsi_sampler_lod_bias) { + lambda = samp->compute_lambda(samp, s, t, p) + samp->sampler->lod_bias; + compute_lod(samp->sampler, lambda, c0, lod); + } else { + assert(control == tgsi_sampler_lod_explicit); - lambda = samp->compute_lambda(samp, s, t, p, lodbias); + memcpy(lod, c0, sizeof(lod)); + } + + /* XXX: Take into account all lod values. + */ + lambda = lod[0]; level0 = (int)lambda; if (lambda < 0.0) { samp->level = 0; - samp->mag_img_filter( tgsi_sampler, s, t, p, 0, rgba ); + samp->mag_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba); } else if (level0 >= texture->last_level) { samp->level = texture->last_level; - samp->min_img_filter( tgsi_sampler, s, t, p, 0, rgba ); + samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba); } else { float levelBlend = lambda - level0; @@ -1292,10 +1316,10 @@ mip_filter_linear(struct tgsi_sampler *tgsi_sampler, int c,j; samp->level = level0; - samp->min_img_filter( tgsi_sampler, s, t, p, 0, rgba0 ); + samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba0); samp->level = level0+1; - samp->min_img_filter( tgsi_sampler, s, t, p, 0, rgba1 ); + samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba1); for (j = 0; j < QUAD_SIZE; j++) { for (c = 0; c < 4; c++) { @@ -1311,23 +1335,36 @@ mip_filter_nearest(struct tgsi_sampler *tgsi_sampler, const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]) { struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); const struct pipe_texture *texture = samp->texture; float lambda; + float lod[QUAD_SIZE]; - lambda = samp->compute_lambda(samp, s, t, p, lodbias); + if (control == tgsi_sampler_lod_bias) { + lambda = samp->compute_lambda(samp, s, t, p) + samp->sampler->lod_bias; + compute_lod(samp->sampler, lambda, c0, lod); + } else { + assert(control == tgsi_sampler_lod_explicit); + + memcpy(lod, c0, sizeof(lod)); + } + + /* XXX: Take into account all lod values. + */ + lambda = lod[0]; if (lambda < 0.0) { samp->level = 0; - samp->mag_img_filter( tgsi_sampler, s, t, p, 0, rgba ); + samp->mag_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba); } else { samp->level = (int)(lambda + 0.5) ; samp->level = MIN2(samp->level, (int)texture->last_level); - samp->min_img_filter( tgsi_sampler, s, t, p, 0, rgba ); + samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba); } #if 0 @@ -1345,17 +1382,32 @@ mip_filter_none(struct tgsi_sampler *tgsi_sampler, const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]) { struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); - float lambda = samp->compute_lambda(samp, s, t, p, lodbias); + float lambda; + float lod[QUAD_SIZE]; + + if (control == tgsi_sampler_lod_bias) { + lambda = samp->compute_lambda(samp, s, t, p) + samp->sampler->lod_bias; + compute_lod(samp->sampler, lambda, c0, lod); + } else { + assert(control == tgsi_sampler_lod_explicit); + + memcpy(lod, c0, sizeof(lod)); + } + + /* XXX: Take into account all lod values. + */ + lambda = lod[0]; if (lambda < 0.0) { - samp->mag_img_filter( tgsi_sampler, s, t, p, 0, rgba ); + samp->mag_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba); } else { - samp->min_img_filter( tgsi_sampler, s, t, p, 0, rgba ); + samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba); } } @@ -1371,15 +1423,28 @@ mip_filter_linear_2d_linear_repeat_POT( const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]) { struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); const struct pipe_texture *texture = samp->texture; int level0; float lambda; + float lod[QUAD_SIZE]; - lambda = compute_lambda_2d(samp, s, t, p, lodbias); + if (control == tgsi_sampler_lod_bias) { + lambda = samp->compute_lambda(samp, s, t, p) + samp->sampler->lod_bias; + compute_lod(samp->sampler, lambda, c0, lod); + } else { + assert(control == tgsi_sampler_lod_explicit); + + memcpy(lod, c0, sizeof(lod)); + } + + /* XXX: Take into account all lod values. + */ + lambda = lod[0]; level0 = (int)lambda; /* Catches both negative and large values of level0: @@ -1390,7 +1455,7 @@ mip_filter_linear_2d_linear_repeat_POT( else samp->level = texture->last_level; - img_filter_2d_linear_repeat_POT( tgsi_sampler, s, t, p, 0, rgba ); + img_filter_2d_linear_repeat_POT(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba); } else { float levelBlend = lambda - level0; @@ -1399,10 +1464,10 @@ mip_filter_linear_2d_linear_repeat_POT( int c,j; samp->level = level0; - img_filter_2d_linear_repeat_POT( tgsi_sampler, s, t, p, 0, rgba0 ); + img_filter_2d_linear_repeat_POT(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba0); samp->level = level0+1; - img_filter_2d_linear_repeat_POT( tgsi_sampler, s, t, p, 0, rgba1 ); + img_filter_2d_linear_repeat_POT(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba1); for (j = 0; j < QUAD_SIZE; j++) { for (c = 0; c < 4; c++) { @@ -1422,7 +1487,8 @@ sample_compare(struct tgsi_sampler *tgsi_sampler, const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]) { struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); @@ -1430,7 +1496,7 @@ sample_compare(struct tgsi_sampler *tgsi_sampler, int j, k0, k1, k2, k3; float val; - samp->mip_filter( tgsi_sampler, s, t, p, lodbias, rgba ); + samp->mip_filter(tgsi_sampler, s, t, p, c0, control, rgba); /** * Compare texcoord 'p' (aka R) against texture value 'rgba[0]' @@ -1508,7 +1574,8 @@ sample_cube(struct tgsi_sampler *tgsi_sampler, const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]) { struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); @@ -1589,7 +1656,7 @@ sample_cube(struct tgsi_sampler *tgsi_sampler, * is not active, this will point somewhere deeper into the * pipeline, eg. to mip_filter or even img_filter. */ - samp->compare(tgsi_sampler, ssss, tttt, NULL, lodbias, rgba); + samp->compare(tgsi_sampler, ssss, tttt, NULL, c0, control, rgba); } @@ -1778,8 +1845,8 @@ sp_sampler_varient_bind_texture( struct sp_sampler_varient *samp, samp->texture = texture; samp->cache = tex_cache; - samp->xpot = util_unsigned_logbase2( texture->width[0] ); - samp->ypot = util_unsigned_logbase2( texture->height[0] ); + samp->xpot = util_unsigned_logbase2( texture->width0 ); + samp->ypot = util_unsigned_logbase2( texture->height0 ); samp->level = CLAMP((int) sampler->min_lod, 0, (int) texture->last_level); } @@ -1862,7 +1929,7 @@ sp_create_sampler_varient( const struct pipe_sampler_state *sampler, break; } - if (sampler->compare_mode != FALSE) { + if (sampler->compare_mode != PIPE_TEX_COMPARE_NONE) { samp->compare = sample_compare; } else { |