+/**************************************************************************
+ *
+ * Copyright 2007 VMware, Inc.
+ * All Rights Reserved.
+ * Copyright 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
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE 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.
+ *
+ **************************************************************************/
+
#ifndef SP_TEX_SAMPLE_H
#define SP_TEX_SAMPLE_H
-struct tgsi_sampler;
+#include "tgsi/tgsi_exec.h"
+
+
+struct sp_sampler_view;
+struct sp_sampler;
+
+typedef void (*wrap_nearest_func)(float s,
+ unsigned size,
+ int offset,
+ int *icoord);
+
+typedef void (*wrap_linear_func)(float s,
+ unsigned size,
+ int offset,
+ int *icoord0,
+ int *icoord1,
+ float *w);
+
+typedef float (*compute_lambda_func)(const struct sp_sampler_view *sp_sview,
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE]);
+
+typedef float (*compute_lambda_from_grad_func)(const struct sp_sampler_view *sp_sview,
+ const float derivs[3][2][TGSI_QUAD_SIZE],
+ uint quad);
+
+struct img_filter_args {
+ float s;
+ float t;
+ float p;
+ unsigned level;
+ unsigned face_id;
+ const int8_t *offset;
+ bool gather_only;
+ int gather_comp;
+};
+
+typedef void (*img_filter_func)(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba);
+
+struct filter_args {
+ enum tgsi_sampler_control control;
+ const int8_t *offset;
+ const uint *faces;
+};
+
+typedef void (*mip_filter_func)(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ img_filter_func min_filter,
+ img_filter_func mag_filter,
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ int gather_comp,
+ const float lod[TGSI_QUAD_SIZE],
+ const struct filter_args *args,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE]);
+
+
+typedef void (*mip_level_func)(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const float lod[TGSI_QUAD_SIZE],
+ float level[TGSI_QUAD_SIZE]);
+
+typedef void (*fetch_func)(struct sp_sampler_view *sp_sview,
+ const int i[TGSI_QUAD_SIZE],
+ const int j[TGSI_QUAD_SIZE], const int k[TGSI_QUAD_SIZE],
+ const int lod[TGSI_QUAD_SIZE], const int8_t offset[3],
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE]);
+
+
+struct sp_sampler_view
+{
+ struct pipe_sampler_view base;
+
+ /* For sp_get_samples_2d_linear_POT:
+ */
+ unsigned xpot;
+ unsigned ypot;
+
+ boolean need_swizzle;
+ boolean pot2d;
+ boolean need_cube_convert;
+
+ /* these are different per shader type */
+ struct softpipe_tex_tile_cache *cache;
+ compute_lambda_func compute_lambda;
+ compute_lambda_from_grad_func compute_lambda_from_grad;
+ union pipe_color_union border_color;
+};
+
+struct sp_filter_funcs {
+ mip_level_func relative_level;
+ mip_filter_func filter;
+};
+
+struct sp_sampler {
+ struct pipe_sampler_state base;
+
+ boolean min_mag_equal_repeat_linear;
+ boolean min_mag_equal;
+ unsigned min_img_filter;
+
+ wrap_nearest_func nearest_texcoord_s;
+ wrap_nearest_func nearest_texcoord_t;
+ wrap_nearest_func nearest_texcoord_p;
+
+ wrap_linear_func linear_texcoord_s;
+ wrap_linear_func linear_texcoord_t;
+ wrap_linear_func linear_texcoord_p;
+
+ const struct sp_filter_funcs *filter_funcs;
+};
+
+
+/**
+ * Subclass of tgsi_sampler
+ */
+struct sp_tgsi_sampler
+{
+ struct tgsi_sampler base; /**< base class */
+ struct sp_sampler *sp_sampler[PIPE_MAX_SAMPLERS];
+ struct sp_sampler_view sp_sview[PIPE_MAX_SHADER_SAMPLER_VIEWS];
+
+};
+
+compute_lambda_func
+softpipe_get_lambda_func(const struct pipe_sampler_view *view,
+ enum pipe_shader_type shader);
+
+compute_lambda_from_grad_func
+softpipe_get_lambda_from_grad_func(const struct pipe_sampler_view *view,
+ enum pipe_shader_type shader);
+
+void *
+softpipe_create_sampler_state(struct pipe_context *pipe,
+ const struct pipe_sampler_state *sampler);
+
+
+struct pipe_sampler_view *
+softpipe_create_sampler_view(struct pipe_context *pipe,
+ struct pipe_resource *resource,
+ const struct pipe_sampler_view *templ);
-extern void
-sp_get_samples(struct tgsi_sampler *sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- float lodbias,
- float rgba[NUM_CHANNELS][QUAD_SIZE]);
+struct sp_tgsi_sampler *
+sp_create_tgsi_sampler(void);
#endif /* SP_TEX_SAMPLE_H */
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