src/gallium/drivers/svga/svga_tgsi.h

   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,
  69                           enum pipe_shader_type unit);
  70
  71 struct svga_shader_variant *
  72 svga_tgsi_vgpu10_translate(struct svga_context *svga,
  73                            const struct svga_shader *shader,
  74                            const struct svga_compile_key *key,
  75                            enum pipe_shader_type unit);
  76
  77 boolean svga_shader_verify(const uint32_t *tokens, unsigned nr_tokens);
  78
  79 #endif