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/**************************************************************************
*
* Copyright 2007 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 TGSI_UTIL_H
#define TGSI_UTIL_H
#include "pipe/p_shader_tokens.h"
#if defined __cplusplus
extern "C" {
#endif
struct tgsi_src_register;
struct tgsi_full_src_register;
struct tgsi_full_instruction;
void *
tgsi_align_128bit(
void *unaligned );
unsigned
tgsi_util_get_src_register_swizzle(
const struct tgsi_src_register *reg,
unsigned component );
unsigned
tgsi_util_get_full_src_register_swizzle(
const struct tgsi_full_src_register *reg,
unsigned component );
void
tgsi_util_set_src_register_swizzle(
struct tgsi_src_register *reg,
unsigned swizzle,
unsigned component );
#define TGSI_UTIL_SIGN_CLEAR 0 /* Force positive */
#define TGSI_UTIL_SIGN_SET 1 /* Force negative */
#define TGSI_UTIL_SIGN_TOGGLE 2 /* Negate */
#define TGSI_UTIL_SIGN_KEEP 3 /* No change */
unsigned
tgsi_util_get_full_src_register_sign_mode(
const struct tgsi_full_src_register *reg,
unsigned component );
void
tgsi_util_set_full_src_register_sign_mode(
struct tgsi_full_src_register *reg,
unsigned sign_mode );
unsigned
tgsi_util_get_inst_usage_mask(const struct tgsi_full_instruction *inst,
unsigned src_idx);
struct tgsi_src_register
tgsi_util_get_src_from_ind(const struct tgsi_ind_register *reg);
int
tgsi_util_get_texture_coord_dim(unsigned tgsi_tex);
int
tgsi_util_get_shadow_ref_src_index(unsigned tgsi_tex);
boolean
tgsi_is_shadow_target(unsigned target);
static inline boolean
tgsi_is_msaa_target(unsigned target)
{
return (target == TGSI_TEXTURE_2D_MSAA ||
target == TGSI_TEXTURE_2D_ARRAY_MSAA);
}
static inline bool
tgsi_is_array_sampler(unsigned target)
{
return target == TGSI_TEXTURE_1D_ARRAY ||
target == TGSI_TEXTURE_SHADOW1D_ARRAY ||
target == TGSI_TEXTURE_2D_ARRAY ||
target == TGSI_TEXTURE_SHADOW2D_ARRAY ||
target == TGSI_TEXTURE_CUBE_ARRAY ||
target == TGSI_TEXTURE_SHADOWCUBE_ARRAY ||
target == TGSI_TEXTURE_2D_ARRAY_MSAA;
}
#if defined __cplusplus
}
#endif
#endif /* TGSI_UTIL_H */
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