From b642730be93149baa7556e5791393168ab396175 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jos=C3=A9=20Fonseca?= Date: Fri, 15 Feb 2008 17:35:24 +0900 Subject: Code reorganization: move files into their places. This is in a separate commit to ensure renames are properly preserved. --- .../drivers/i965simple/brw_wm_sampler_state.c | 273 +++++++++++++++++++++ 1 file changed, 273 insertions(+) create mode 100644 src/gallium/drivers/i965simple/brw_wm_sampler_state.c (limited to 'src/gallium/drivers/i965simple/brw_wm_sampler_state.c') diff --git a/src/gallium/drivers/i965simple/brw_wm_sampler_state.c b/src/gallium/drivers/i965simple/brw_wm_sampler_state.c new file mode 100644 index 0000000..de42ffc --- /dev/null +++ b/src/gallium/drivers/i965simple/brw_wm_sampler_state.c @@ -0,0 +1,273 @@ +/* + Copyright (C) Intel Corp. 2006. All Rights Reserved. + Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to + develop this 3D driver. + + 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, sublicense, 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 NONINFRINGEMENT. + IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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 + */ + + +#include "brw_context.h" +#include "brw_state.h" +#include "brw_defines.h" + +#include "pipe/p_util.h" + + +#define COMPAREFUNC_ALWAYS 0 +#define COMPAREFUNC_NEVER 0x1 +#define COMPAREFUNC_LESS 0x2 +#define COMPAREFUNC_EQUAL 0x3 +#define COMPAREFUNC_LEQUAL 0x4 +#define COMPAREFUNC_GREATER 0x5 +#define COMPAREFUNC_NOTEQUAL 0x6 +#define COMPAREFUNC_GEQUAL 0x7 + +/* Samplers aren't strictly wm state from the hardware's perspective, + * but that is the only situation in which we use them in this driver. + */ + +static int intel_translate_shadow_compare_func(unsigned func) +{ + switch(func) { + case PIPE_FUNC_NEVER: + return COMPAREFUNC_ALWAYS; + case PIPE_FUNC_LESS: + return COMPAREFUNC_LEQUAL; + case PIPE_FUNC_LEQUAL: + return COMPAREFUNC_LESS; + case PIPE_FUNC_GREATER: + return COMPAREFUNC_GEQUAL; + case PIPE_FUNC_GEQUAL: + return COMPAREFUNC_GREATER; + case PIPE_FUNC_NOTEQUAL: + return COMPAREFUNC_EQUAL; + case PIPE_FUNC_EQUAL: + return COMPAREFUNC_NOTEQUAL; + case PIPE_FUNC_ALWAYS: + return COMPAREFUNC_NEVER; + } + + debug_printf("Unknown value in %s: %x\n", __FUNCTION__, func); + return COMPAREFUNC_NEVER; +} + +/* The brw (and related graphics cores) do not support GL_CLAMP. The + * Intel drivers for "other operating systems" implement GL_CLAMP as + * GL_CLAMP_TO_EDGE, so the same is done here. + */ +static unsigned translate_wrap_mode( int wrap ) +{ + switch( wrap ) { + case PIPE_TEX_WRAP_REPEAT: + return BRW_TEXCOORDMODE_WRAP; + case PIPE_TEX_WRAP_CLAMP: + return BRW_TEXCOORDMODE_CLAMP; + case PIPE_TEX_WRAP_CLAMP_TO_EDGE: + return BRW_TEXCOORDMODE_CLAMP; /* conform likes it this way */ + case PIPE_TEX_WRAP_CLAMP_TO_BORDER: + return BRW_TEXCOORDMODE_CLAMP_BORDER; + case PIPE_TEX_WRAP_MIRROR_REPEAT: + return BRW_TEXCOORDMODE_MIRROR; + default: + return BRW_TEXCOORDMODE_WRAP; + } +} + + +static unsigned U_FIXED(float value, unsigned frac_bits) +{ + value *= (1<cache[BRW_SAMPLER_DEFAULT_COLOR], &sdc ); +} + + +/* + */ +static void brw_update_sampler_state( const struct pipe_sampler_state *pipe_sampler, + unsigned sdc_gs_offset, + struct brw_sampler_state *sampler) +{ + memset(sampler, 0, sizeof(*sampler)); + + switch (pipe_sampler->min_mip_filter) { + case PIPE_TEX_FILTER_NEAREST: + sampler->ss0.min_filter = BRW_MAPFILTER_NEAREST; + break; + case PIPE_TEX_FILTER_LINEAR: + sampler->ss0.min_filter = BRW_MAPFILTER_LINEAR; + break; + default: + break; + } + + switch (pipe_sampler->min_mip_filter) { + case PIPE_TEX_MIPFILTER_NEAREST: + sampler->ss0.mip_filter = BRW_MIPFILTER_NEAREST; + break; + case PIPE_TEX_MIPFILTER_LINEAR: + sampler->ss0.mip_filter = BRW_MIPFILTER_LINEAR; + break; + case PIPE_TEX_MIPFILTER_NONE: + sampler->ss0.mip_filter = BRW_MIPFILTER_NONE; + break; + default: + break; + } + /* Set Anisotropy: + */ + if (pipe_sampler->max_anisotropy > 1.0) { + sampler->ss0.min_filter = BRW_MAPFILTER_ANISOTROPIC; + sampler->ss0.mag_filter = BRW_MAPFILTER_ANISOTROPIC; + + if (pipe_sampler->max_anisotropy > 2.0) { + sampler->ss3.max_aniso = MAX2((pipe_sampler->max_anisotropy - 2) / 2, + BRW_ANISORATIO_16); + } + } + else { + switch (pipe_sampler->mag_img_filter) { + case PIPE_TEX_FILTER_NEAREST: + sampler->ss0.mag_filter = BRW_MAPFILTER_NEAREST; + break; + case PIPE_TEX_FILTER_LINEAR: + sampler->ss0.mag_filter = BRW_MAPFILTER_LINEAR; + break; + default: + break; + } + } + + sampler->ss1.s_wrap_mode = translate_wrap_mode(pipe_sampler->wrap_s); + sampler->ss1.r_wrap_mode = translate_wrap_mode(pipe_sampler->wrap_r); + sampler->ss1.t_wrap_mode = translate_wrap_mode(pipe_sampler->wrap_t); + + /* Fulsim complains if I don't do this. Hardware doesn't mind: + */ +#if 0 + if (texObj->Target == GL_TEXTURE_CUBE_MAP_ARB) { + sampler->ss1.r_wrap_mode = BRW_TEXCOORDMODE_CUBE; + sampler->ss1.s_wrap_mode = BRW_TEXCOORDMODE_CUBE; + sampler->ss1.t_wrap_mode = BRW_TEXCOORDMODE_CUBE; + } +#endif + + /* Set shadow function: + */ + if (pipe_sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) { + /* Shadowing is "enabled" by emitting a particular sampler + * message (sample_c). So need to recompile WM program when + * shadow comparison is enabled on each/any texture unit. + */ + sampler->ss0.shadow_function = intel_translate_shadow_compare_func(pipe_sampler->compare_func); + } + + /* Set LOD bias: + */ + sampler->ss0.lod_bias = S_FIXED(CLAMP(pipe_sampler->lod_bias, -16, 15), 6); + + sampler->ss0.lod_preclamp = 1; /* OpenGL mode */ + sampler->ss0.default_color_mode = 0; /* OpenGL/DX10 mode */ + + /* Set BaseMipLevel, MaxLOD, MinLOD: + * + * XXX: I don't think that using firstLevel, lastLevel works, + * because we always setup the surface state as if firstLevel == + * level zero. Probably have to subtract firstLevel from each of + * these: + */ + sampler->ss0.base_level = U_FIXED(0, 1); + + sampler->ss1.max_lod = U_FIXED(MIN2(MAX2(pipe_sampler->max_lod, 0), 13), 6); + sampler->ss1.min_lod = U_FIXED(MIN2(MAX2(pipe_sampler->min_lod, 0), 13), 6); + + sampler->ss2.default_color_pointer = sdc_gs_offset >> 5; +} + + + +/* All samplers must be uploaded in a single contiguous array, which + * complicates various things. However, this is still too confusing - + * FIXME: simplify all the different new texture state flags. + */ +static void upload_wm_samplers(struct brw_context *brw) +{ + unsigned unit; + unsigned sampler_count = 0; + + /* BRW_NEW_SAMPLER */ + for (unit = 0; unit < BRW_MAX_TEX_UNIT; unit++) { + /* determine unit enable/disable by looking for a bound texture */ + if (brw->attribs.Texture[unit]) { + const struct pipe_sampler_state *sampler = brw->attribs.Samplers[unit]; + unsigned sdc_gs_offset = upload_default_color(brw, sampler->border_color); + + brw_update_sampler_state(sampler, + sdc_gs_offset, + &brw->wm.sampler[unit]); + + sampler_count = unit + 1; + } + } + + if (brw->wm.sampler_count != sampler_count) { + brw->wm.sampler_count = sampler_count; + brw->state.dirty.cache |= CACHE_NEW_SAMPLER; + } + + brw->wm.sampler_gs_offset = 0; + + if (brw->wm.sampler_count) + brw->wm.sampler_gs_offset = + brw_cache_data_sz(&brw->cache[BRW_SAMPLER], + brw->wm.sampler, + sizeof(struct brw_sampler_state) * brw->wm.sampler_count); +} + +const struct brw_tracked_state brw_wm_samplers = { + .dirty = { + .brw = BRW_NEW_SAMPLER, + .cache = 0 + }, + .update = upload_wm_samplers +}; + -- cgit v1.1