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      1 /**************************************************************************
      2  *
      3  * Copyright (C) 2014 Red Hat Inc.
      4  *
      5  * Permission is hereby granted, free of charge, to any person obtaining a
      6  * copy of this software and associated documentation files (the "Software"),
      7  * to deal in the Software without restriction, including without limitation
      8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      9  * and/or sell copies of the Software, and to permit persons to whom the
     10  * Software is furnished to do so, subject to the following conditions:
     11  *
     12  * The above copyright notice and this permission notice shall be included
     13  * in all copies or substantial portions of the Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
     16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
     19  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     21  * OTHER DEALINGS IN THE SOFTWARE.
     22  *
     23  **************************************************************************/
     24 
     25 #ifndef VREND_SHADER_H
     26 #define VREND_SHADER_H
     27 
     28 #include "pipe/p_state.h"
     29 #include "pipe/p_shader_tokens.h"
     30 
     31 /* need to store patching info for interpolation */
     32 struct vrend_interp_info {
     33    int semantic_name;
     34    int semantic_index;
     35    int interpolate;
     36    unsigned location;
     37 };
     38 
     39 struct vrend_array {
     40    int first;
     41    int array_size;
     42 };
     43 
     44 struct vrend_shader_info {
     45    uint32_t samplers_used_mask;
     46    uint32_t images_used_mask;
     47    uint32_t ssbo_used_mask;
     48    int num_consts;
     49    int num_inputs;
     50    int num_interps;
     51    int num_outputs;
     52    int num_ubos;
     53    int ubo_idx[32];
     54    bool ubo_indirect;
     55    uint8_t num_indirect_generic_outputs;
     56    uint8_t num_indirect_patch_outputs;
     57    uint8_t num_indirect_generic_inputs;
     58    uint8_t num_indirect_patch_inputs;
     59    int num_ucp;
     60    int glsl_ver;
     61    bool has_pervertex_out;
     62    bool has_sample_input;
     63    uint8_t num_clip_out;
     64    uint8_t num_cull_out;
     65    uint32_t shadow_samp_mask;
     66    int gs_out_prim;
     67    int tes_prim;
     68    bool tes_point_mode;
     69    uint32_t attrib_input_mask;
     70 
     71    struct vrend_array *sampler_arrays;
     72    int num_sampler_arrays;
     73 
     74    struct vrend_array *image_arrays;
     75    int num_image_arrays;
     76 
     77    struct pipe_stream_output_info so_info;
     78 
     79    struct vrend_interp_info *interpinfo;
     80    char **so_names;
     81 };
     82 
     83 struct vrend_shader_key {
     84    uint32_t coord_replace;
     85    bool invert_fs_origin;
     86    bool pstipple_tex;
     87    bool add_alpha_test;
     88    bool color_two_side;
     89    uint8_t alpha_test;
     90    uint8_t clip_plane_enable;
     91    bool gs_present;
     92    bool tcs_present;
     93    bool tes_present;
     94    bool flatshade;
     95    bool prev_stage_pervertex_out;
     96    uint8_t prev_stage_num_clip_out;
     97    uint8_t prev_stage_num_cull_out;
     98    float alpha_ref_val;
     99    uint32_t cbufs_are_a8_bitmask;
    100    uint8_t num_indirect_generic_outputs;
    101    uint8_t num_indirect_patch_outputs;
    102    uint8_t num_indirect_generic_inputs;
    103    uint8_t num_indirect_patch_inputs;
    104 };
    105 
    106 struct vrend_shader_cfg {
    107    int glsl_version;
    108    int max_draw_buffers;
    109    bool use_gles;
    110    bool use_core_profile;
    111    bool use_explicit_locations;
    112 };
    113 
    114 bool vrend_patch_vertex_shader_interpolants(struct vrend_shader_cfg *cfg,
    115                                             char *program,
    116                                             struct vrend_shader_info *vs_info,
    117                                             struct vrend_shader_info *fs_info,
    118                                             const char *oprefix, bool flatshade);
    119 
    120 char *vrend_convert_shader(struct vrend_shader_cfg *cfg,
    121                            const struct tgsi_token *tokens,
    122                            uint32_t req_local_mem,
    123                            struct vrend_shader_key *key,
    124                            struct vrend_shader_info *sinfo);
    125 const char *vrend_shader_samplertypeconv(int sampler_type, int *is_shad);
    126 char vrend_shader_samplerreturnconv(enum tgsi_return_type type);
    127 
    128 int shader_lookup_sampler_array(struct vrend_shader_info *sinfo, int index);
    129 #endif
    130