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/*
* Copyright © 2017 Intel Corporation
*
* 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
* on 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
* THE AUTHOR(S) AND/OR THEIR 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 CROCUS_PIPE_H
#define CROCUS_PIPE_H
#include "pipe/p_defines.h"
#include "compiler/shader_enums.h"
static inline gl_shader_stage
stage_from_pipe(enum pipe_shader_type pstage)
{
static const gl_shader_stage stages[PIPE_SHADER_TYPES] = {
[PIPE_SHADER_VERTEX] = MESA_SHADER_VERTEX,
[PIPE_SHADER_TESS_CTRL] = MESA_SHADER_TESS_CTRL,
[PIPE_SHADER_TESS_EVAL] = MESA_SHADER_TESS_EVAL,
[PIPE_SHADER_GEOMETRY] = MESA_SHADER_GEOMETRY,
[PIPE_SHADER_FRAGMENT] = MESA_SHADER_FRAGMENT,
[PIPE_SHADER_COMPUTE] = MESA_SHADER_COMPUTE,
};
return stages[pstage];
}
static inline enum pipe_shader_type
stage_to_pipe(gl_shader_stage stage)
{
static const enum pipe_shader_type pstages[MESA_SHADER_STAGES] = {
[MESA_SHADER_VERTEX] = PIPE_SHADER_VERTEX,
[MESA_SHADER_TESS_CTRL] = PIPE_SHADER_TESS_CTRL,
[MESA_SHADER_TESS_EVAL] = PIPE_SHADER_TESS_EVAL,
[MESA_SHADER_GEOMETRY] = PIPE_SHADER_GEOMETRY,
[MESA_SHADER_FRAGMENT] = PIPE_SHADER_FRAGMENT,
[MESA_SHADER_COMPUTE] = PIPE_SHADER_COMPUTE,
};
return pstages[stage];
}
/**
* Convert an swizzle enumeration (i.e. PIPE_SWIZZLE_X) to one of the HW's
* "Shader Channel Select" enumerations (i.e. SCS_RED). The mappings are
*
* SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_W, SWIZZLE_ZERO, SWIZZLE_ONE
* 0 1 2 3 4 5
* 4 5 6 7 0 1
* SCS_RED, SCS_GREEN, SCS_BLUE, SCS_ALPHA, SCS_ZERO, SCS_ONE
*
* which is simply adding 4 then modding by 8 (or anding with 7).
*/
static inline enum isl_channel_select
pipe_swizzle_to_isl_channel(enum pipe_swizzle swizzle)
{
return (swizzle + 4) & 7;
}
#endif
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