summaryrefslogtreecommitdiff
path: root/src/gallium/drivers/i965simple/brw_wm_sampler_state.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/gallium/drivers/i965simple/brw_wm_sampler_state.c')
-rw-r--r--src/gallium/drivers/i965simple/brw_wm_sampler_state.c275
1 files changed, 0 insertions, 275 deletions
diff --git a/src/gallium/drivers/i965simple/brw_wm_sampler_state.c b/src/gallium/drivers/i965simple/brw_wm_sampler_state.c
deleted file mode 100644
index 52b2909a65..0000000000
--- a/src/gallium/drivers/i965simple/brw_wm_sampler_state.c
+++ /dev/null
@@ -1,275 +0,0 @@
-/*
- 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 <keith@tungstengraphics.com>
- */
-
-
-#include "brw_context.h"
-#include "brw_state.h"
-#include "brw_defines.h"
-
-#include "util/u_math.h"
-#include "util/u_memory.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<<frac_bits);
- return value < 0 ? 0 : value;
-}
-
-static int S_FIXED(float value, unsigned frac_bits)
-{
- return value * (1<<frac_bits);
-}
-
-
-static unsigned upload_default_color( struct brw_context *brw,
- const float *color )
-{
- struct brw_sampler_default_color sdc;
-
- COPY_4V(sdc.color, color);
-
- return brw_cache_data( &brw->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;
- case PIPE_TEX_FILTER_ANISO:
- sampler->ss0.min_filter = BRW_MAPFILTER_ANISOTROPIC;
- 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:
- */
- 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;
- case PIPE_TEX_FILTER_ANISO:
- sampler->ss0.mag_filter = BRW_MAPFILTER_LINEAR;
- break;
- default:
- break;
- }
-
- if (pipe_sampler->max_anisotropy > 2.0) {
- sampler->ss3.max_aniso = MAX2((pipe_sampler->max_anisotropy - 2) / 2,
- BRW_ANISORATIO_16);
- }
-
- 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->num_textures && unit < brw->num_samplers;
- 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
-};
-
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-10 13:37:28 +0000