src/gallium/drivers/r300/r300_tgsi_to_rc.h

   1 /*
   2  * Copyright 2009 Nicolai Hähnle <nhaehnle@gmail.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE COPYRIGHT HOLDER(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  22
  23 #ifndef R300_TGSI_TO_RC_H
  24 #define R300_TGSI_TO_RC_H
  25
  26 #include "pipe/p_compiler.h"
  27
  28 struct radeon_compiler;
  29
  30 struct tgsi_full_declaration;
  31 struct tgsi_shader_info;
  32 struct tgsi_token;
  33
  34 struct swizzled_imms {
  35     unsigned index;
  36     unsigned swizzle;
  37 };
  38
  39 struct tgsi_to_rc {
  40     struct radeon_compiler * compiler;
  41     const struct tgsi_shader_info * info;
  42
  43     int immediate_offset;
  44     struct swizzled_imms * imms_to_swizzle;
  45     unsigned imms_to_swizzle_count;
  46
  47     /* Vertex shaders have no half swizzles, and no way to handle them, so
  48      * until rc grows proper support, indicate if they're safe to use. */
  49     boolean use_half_swizzles;
  50
  51     /* If an error occured. */
  52     boolean error;
  53 };
  54
  55 void r300_tgsi_to_rc(struct tgsi_to_rc * ttr, const struct tgsi_token * tokens);
  56
  57 #endif /* R300_TGSI_TO_RC_H */