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/*
* Copyright  2019 Alyssa Rosenzweig
*
* 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, sublicense,
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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 NIR_BLEND_H
#define NIR_BLEND_H
#include "compiler/nir/nir.h"
#include "pipe/p_format.h"
/* These structs encapsulates the blend state such that it can be lowered
* cleanly
*/
typedef struct {
enum blend_func func;
enum blend_factor src_factor;
bool invert_src_factor;
enum blend_factor dst_factor;
bool invert_dst_factor;
} nir_lower_blend_channel;
typedef struct {
nir_lower_blend_channel rgb;
nir_lower_blend_channel alpha;
/* 4-bit colormask. 0x0 for none, 0xF for RGBA, 0x1 for R */
unsigned colormask;
} nir_lower_blend_options;
void nir_lower_blend(nir_shader *shader, nir_lower_blend_options options);
void
nir_lower_framebuffer(nir_shader *shader, enum pipe_format format,
unsigned gpu_id);
#endif
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