mirror of
https://github.com/libretro/RetroArch.git
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153 lines
3.5 KiB
C
153 lines
3.5 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2016 - Daniel De Matteis
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* Copyright (C) 2016 - Brad Parker
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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 <stdlib.h>
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#include <string/stdstring.h>
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#ifdef HAVE_CONFIG_H
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#include "../../config.h"
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#endif
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#include "../font_driver.h"
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#include "../../verbosity.h"
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#include "../common/vga_common.h"
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typedef struct
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{
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const font_renderer_driver_t *vga_font_driver;
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void *vga_font_data;
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vga_t *vga;
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} vga_raster_t;
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static void *vga_init_font(void *data,
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const char *font_path, float font_size,
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bool is_threaded)
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{
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vga_raster_t *font = (vga_raster_t*)calloc(1, sizeof(*font));
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if (!font)
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return NULL;
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font->vga = (vga_t*)data;
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font_size = 1;
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if (!font_renderer_create_default((const void**)&font->vga_font_driver,
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&font->vga_font_data, font_path, font_size))
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{
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RARCH_WARN("Couldn't initialize font renderer.\n");
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return NULL;
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}
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return font;
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}
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static void vga_render_free_font(void *data, bool is_threaded)
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{
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(void)data;
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(void)is_threaded;
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}
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static int vga_get_message_width(void *data, const char *msg,
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unsigned msg_len, float scale)
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{
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return 0;
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}
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static const struct font_glyph *vga_font_get_glyph(
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void *data, uint32_t code)
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{
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return NULL;
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}
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static void vga_render_msg(video_frame_info_t *video_info,
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void *data, const char *msg,
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const void *userdata)
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{
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float x, y, scale;
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unsigned width, height;
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unsigned newX, newY;
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unsigned align;
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vga_raster_t *font = (vga_raster_t*)data;
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const struct font_params *params = (const struct font_params*)userdata;
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(void)newX;
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(void)newY;
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if (!font || string_is_empty(msg))
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return;
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if (params)
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{
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x = params->x;
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y = params->y;
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scale = params->scale;
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align = params->text_align;
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}
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else
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{
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x = video_info->font_msg_pos_x;
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y = video_info->font_msg_pos_y;
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scale = 1.0f;
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align = TEXT_ALIGN_LEFT;
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}
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if (!font->vga)
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return;
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width = VGA_WIDTH;
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height = VGA_HEIGHT;
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newY = height - (y * height * scale);
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switch (align)
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{
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case TEXT_ALIGN_LEFT:
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newX = x * width * scale;
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break;
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case TEXT_ALIGN_RIGHT:
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newX = (x * width * scale) - strlen(msg);
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break;
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case TEXT_ALIGN_CENTER:
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newX = (x * width * scale) - (strlen(msg) / 2);
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break;
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default:
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break;
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}
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}
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static void vga_font_flush_block(unsigned width, unsigned height,
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void* data)
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{
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(void)data;
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}
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static void vga_font_bind_block(void* data, void* userdata)
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{
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(void)data;
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}
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font_renderer_t vga_font = {
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vga_init_font,
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vga_render_free_font,
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vga_render_msg,
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"vga font",
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vga_font_get_glyph, /* get_glyph */
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vga_font_bind_block, /* bind_block */
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vga_font_flush_block, /* flush */
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vga_get_message_width /* get_message_width */
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};
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