mirror of
https://github.com/libretro/RetroArch.git
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112 lines
2.5 KiB
C
112 lines
2.5 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2013 - Hans-Kristian Arntzen
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef SCALER_H__
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#define SCALER_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 "scaler_common.h"
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#define FILTER_UNITY (1 << 14)
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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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};
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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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void scaler_ctx_scale(struct scaler_ctx *ctx,
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void *output, const void *input);
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void *scaler_alloc(size_t elem_size, size_t size);
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void scaler_free(void *ptr);
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#endif
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