mirror of
https://github.com/CTCaer/RetroArch.git
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71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2015 - Daniel De Matteis
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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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#include "video_pixel_converter.h"
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#include <gfx/scaler/pixconv.h>
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#include "../general.h"
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void deinit_pixel_converter(void)
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{
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driver_t *driver = driver_get_ptr();
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scaler_ctx_gen_reset(&driver->scaler);
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memset(&driver->scaler, 0, sizeof(driver->scaler));
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free(driver->scaler_out);
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driver->scaler_out = NULL;
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}
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bool init_video_pixel_converter(unsigned size)
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{
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driver_t *driver = driver_get_ptr();
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global_t *global = global_get_ptr();
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/* This function can be called multiple times
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* without deiniting first on consoles. */
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deinit_pixel_converter();
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/* If pixel format is not 0RGB1555, we don't need to do
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* any internal pixel conversion. */
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if (global->system.pix_fmt != RETRO_PIXEL_FORMAT_0RGB1555)
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return true;
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RARCH_WARN("0RGB1555 pixel format is deprecated, and will be slower. For 15/16-bit, RGB565 format is preferred.\n");
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driver->scaler.scaler_type = SCALER_TYPE_POINT;
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driver->scaler.in_fmt = SCALER_FMT_0RGB1555;
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/* TODO: Pick either ARGB8888 or RGB565 depending on driver. */
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driver->scaler.out_fmt = SCALER_FMT_RGB565;
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if (!scaler_ctx_gen_filter(&driver->scaler))
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return false;
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driver->scaler_out = calloc(sizeof(uint16_t), size * size);
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return true;
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}
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unsigned video_pixel_get_alignment(unsigned pitch)
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{
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if (pitch & 1)
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return 1;
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if (pitch & 2)
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return 2;
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if (pitch & 4)
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return 4;
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return 8;
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}
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