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      1 /**********************************************************
      2  * Copyright 2008-2009 VMware, Inc.  All rights reserved.
      3  *
      4  * Permission is hereby granted, free of charge, to any person
      5  * obtaining a copy of this software and associated documentation
      6  * files (the "Software"), to deal in the Software without
      7  * restriction, including without limitation the rights to use, copy,
      8  * modify, merge, publish, distribute, sublicense, and/or sell copies
      9  * of the Software, and to permit persons to whom the Software is
     10  * furnished to do so, subject to the following conditions:
     11  *
     12  * The above copyright notice and this permission notice shall be
     13  * included in all copies or substantial portions of the Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
     19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
     20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     22  * SOFTWARE.
     23  *
     24  **********************************************************/
     25 
     26 #ifndef SVGA_TGSI_H
     27 #define SVGA_TGSI_H
     28 
     29 #include "pipe/p_compiler.h"
     30 #include "svga3d_reg.h"
     31 
     32 
     33 #define MAX_VGPU10_ADDR_REGS 2
     34 
     35 struct svga_compile_key;
     36 struct svga_context;
     37 struct svga_shader;
     38 struct svga_shader_variant;
     39 
     40 
     41 /* TGSI doesn't provide use with VS input semantics (they're actually
     42  * pretty meaningless), so we just generate some plausible ones here.
     43  * This is called both from within the TGSI translator and when
     44  * building vdecls to ensure they match up.
     45  *
     46  * The real use of this information is matching vertex elements to
     47  * fragment shader inputs in the case where vertex shader is disabled.
     48  */
     49 static inline void svga_generate_vdecl_semantics( unsigned idx,
     50                                                   unsigned *usage,
     51                                                   unsigned *usage_index )
     52 {
     53    if (idx == 0) {
     54       *usage = SVGA3D_DECLUSAGE_POSITION;
     55       *usage_index = 0;
     56    }
     57    else {
     58       *usage = SVGA3D_DECLUSAGE_TEXCOORD;
     59       *usage_index = idx - 1;
     60    }
     61 }
     62 
     63 
     64 
     65 struct svga_shader_variant *
     66 svga_tgsi_vgpu9_translate(struct svga_context *svga,
     67                           const struct svga_shader *shader,
     68                           const struct svga_compile_key *key, unsigned unit);
     69 
     70 struct svga_shader_variant *
     71 svga_tgsi_vgpu10_translate(struct svga_context *svga,
     72                            const struct svga_shader *shader,
     73                            const struct svga_compile_key *key,
     74                            unsigned unit);
     75 
     76 boolean svga_shader_verify(const uint32_t *tokens, unsigned nr_tokens);
     77 
     78 #endif
     79