forked from KolibriOS/kolibrios
168 lines
5.8 KiB
C
168 lines
5.8 KiB
C
/**************************************************************************
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*
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* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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* Copyright 2010 VMware, Inc. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef SP_TEX_SAMPLE_H
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#define SP_TEX_SAMPLE_H
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#include "tgsi/tgsi_exec.h"
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struct sp_sampler_view;
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struct sp_sampler;
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typedef void (*wrap_nearest_func)(float s,
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unsigned size,
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int *icoord);
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typedef void (*wrap_linear_func)(float s,
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unsigned size,
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int *icoord0,
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int *icoord1,
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float *w);
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typedef float (*compute_lambda_func)(const struct sp_sampler_view *sp_sview,
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const float s[TGSI_QUAD_SIZE],
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const float t[TGSI_QUAD_SIZE],
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const float p[TGSI_QUAD_SIZE]);
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typedef void (*img_filter_func)(struct sp_sampler_view *sp_sview,
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struct sp_sampler *sp_samp,
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float s,
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float t,
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float p,
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unsigned level,
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unsigned face_id,
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float *rgba);
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typedef void (*mip_filter_func)(struct sp_sampler_view *sp_sview,
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struct sp_sampler *sp_samp,
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img_filter_func min_filter,
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img_filter_func mag_filter,
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const float s[TGSI_QUAD_SIZE],
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const float t[TGSI_QUAD_SIZE],
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const float p[TGSI_QUAD_SIZE],
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const float c0[TGSI_QUAD_SIZE],
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const float lod[TGSI_QUAD_SIZE],
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enum tgsi_sampler_control control,
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float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE]);
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typedef void (*filter_func)(struct sp_sampler_view *sp_sview,
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struct sp_sampler *sp_samp,
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const float s[TGSI_QUAD_SIZE],
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const float t[TGSI_QUAD_SIZE],
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const float p[TGSI_QUAD_SIZE],
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const float c0[TGSI_QUAD_SIZE],
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const float lod[TGSI_QUAD_SIZE],
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enum tgsi_sampler_control control,
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float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE]);
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typedef void (*fetch_func)(struct sp_sampler_view *sp_sview,
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const int i[TGSI_QUAD_SIZE],
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const int j[TGSI_QUAD_SIZE], const int k[TGSI_QUAD_SIZE],
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const int lod[TGSI_QUAD_SIZE], const int8_t offset[3],
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float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE]);
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struct sp_sampler_view
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{
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struct pipe_sampler_view base;
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/* For sp_get_samples_2d_linear_POT:
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*/
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unsigned xpot;
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unsigned ypot;
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boolean need_swizzle;
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boolean pot2d;
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filter_func get_samples;
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/* this is just abusing the sampler_view object as local storage */
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unsigned faces[TGSI_QUAD_SIZE];
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/* these are different per shader type */
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struct softpipe_tex_tile_cache *cache;
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compute_lambda_func compute_lambda;
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};
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struct sp_sampler {
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struct pipe_sampler_state base;
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boolean min_mag_equal_repeat_linear;
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boolean min_mag_equal;
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unsigned min_img_filter;
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wrap_nearest_func nearest_texcoord_s;
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wrap_nearest_func nearest_texcoord_t;
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wrap_nearest_func nearest_texcoord_p;
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wrap_linear_func linear_texcoord_s;
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wrap_linear_func linear_texcoord_t;
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wrap_linear_func linear_texcoord_p;
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mip_filter_func mip_filter;
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};
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/**
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* Subclass of tgsi_sampler
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*/
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struct sp_tgsi_sampler
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{
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struct tgsi_sampler base; /**< base class */
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struct sp_sampler *sp_sampler[PIPE_MAX_SAMPLERS];
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struct sp_sampler_view sp_sview[PIPE_MAX_SHADER_SAMPLER_VIEWS];
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};
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compute_lambda_func
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softpipe_get_lambda_func(const struct pipe_sampler_view *view, unsigned shader);
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void *
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softpipe_create_sampler_state(struct pipe_context *pipe,
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const struct pipe_sampler_state *sampler);
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struct pipe_sampler_view *
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softpipe_create_sampler_view(struct pipe_context *pipe,
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struct pipe_resource *resource,
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const struct pipe_sampler_view *templ);
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struct sp_tgsi_sampler *
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sp_create_tgsi_sampler(void);
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#endif /* SP_TEX_SAMPLE_H */
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