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https://github.com/ekeeke/Genesis-Plus-GX.git
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130 lines
3.3 KiB
C
130 lines
3.3 KiB
C
/* Copyright (C) 2010-2017 The RetroArch team
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*
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* ---------------------------------------------------------------------------------------
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* The following license statement only applies to this file (scaler.h).
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* ---------------------------------------------------------------------------------------
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*
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* Permission is hereby granted, free of charge,
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* to any person obtaining a copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __LIBRETRO_SDK_SCALER_H__
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#define __LIBRETRO_SDK_SCALER_H__
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#include <retro_common_api.h>
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#include <stdint.h>
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#include <stddef.h>
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#include <boolean.h>
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#include <clamping.h>
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RETRO_BEGIN_DECLS
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enum scaler_pix_fmt
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{
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SCALER_FMT_ARGB8888 = 0,
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SCALER_FMT_ABGR8888,
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SCALER_FMT_0RGB1555,
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SCALER_FMT_RGB565,
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SCALER_FMT_BGR24,
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SCALER_FMT_YUYV,
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SCALER_FMT_RGBA4444
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};
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enum scaler_type
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{
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SCALER_TYPE_UNKNOWN = 0,
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SCALER_TYPE_POINT,
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SCALER_TYPE_BILINEAR,
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SCALER_TYPE_SINC
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};
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struct scaler_filter
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{
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int16_t *filter;
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int filter_len;
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int filter_stride;
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int *filter_pos;
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};
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struct scaler_ctx
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{
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int in_width;
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int in_height;
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int in_stride;
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int out_width;
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int out_height;
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int out_stride;
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enum scaler_pix_fmt in_fmt;
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enum scaler_pix_fmt out_fmt;
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enum scaler_type scaler_type;
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void (*scaler_horiz)(const struct scaler_ctx*,
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const void*, int);
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void (*scaler_vert)(const struct scaler_ctx*,
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void*, int);
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void (*scaler_special)(const struct scaler_ctx*,
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void*, const void*, int, int, int, int, int, int);
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void (*in_pixconv)(void*, const void*, int, int, int, int);
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void (*out_pixconv)(void*, const void*, int, int, int, int);
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void (*direct_pixconv)(void*, const void*, int, int, int, int);
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bool unscaled;
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struct scaler_filter horiz, vert;
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struct
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{
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uint32_t *frame;
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int stride;
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} input;
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struct
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{
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uint64_t *frame;
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int width;
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int height;
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int stride;
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} scaled;
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struct
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{
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uint32_t *frame;
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int stride;
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} output;
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};
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bool scaler_ctx_gen_filter(struct scaler_ctx *ctx);
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void scaler_ctx_gen_reset(struct scaler_ctx *ctx);
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/**
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* scaler_ctx_scale:
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* @ctx : pointer to scaler context object.
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* @output : pointer to output image.
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* @input : pointer to input image.
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*
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* Scales an input image to an output image.
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**/
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void scaler_ctx_scale(struct scaler_ctx *ctx,
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void *output, const void *input);
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RETRO_END_DECLS
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#endif
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