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137 | /* GATE PROJECT LICENSE:
+----------------------------------------------------------------------------+
| Copyright(c) 2018-2025, Stefan Meislinger |
| All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions are met:|
| |
| 1. Redistributions of source code must retain the above copyright notice, |
| this list of conditions and the following disclaimer. |
| 2. Redistributions in binary form must reproduce the above copyright |
| notice, this list of conditions and the following disclaimer in the |
| documentation and/or other materials provided with the distribution. |
| |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"|
| AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| ARE DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| THE POSSIBILITY OF SUCH DAMAGE. |
+----------------------------------------------------------------------------+
*/
#include "gate/graphics/fonts.h"
#include "gate/results.h"
#include "gate/graphics/font_types.h"
#include "gate/graphics/font_8x8.h"
#include "gate/graphics/font_8x16.h"
typedef struct gate_font_char_mapping
{
char character;<--- struct member 'gate_font_char_mapping::character' is never used.
gate_font_char_row8_bits_t const* bits;<--- struct member 'gate_font_char_mapping::bits' is never used.
} gate_font_char_mapping_t;
typedef struct gate_font_descriptor_class
{
gate_uint8_t char_width;
gate_uint8_t char_height;
gate_font_char_row8_bits_t const* const* char_table;
} gate_font_descriptor_t;
static gate_font_descriptor_t const gate_font8_descriptor = { 6, 8, font8x8_map };
static gate_font_descriptor_t const gate_font16_descriptor = { 8, 16, font8x16_map };
static gate_result_t gate_font_print_char_generic(gate_font_descriptor_t const* descriptor, gate_rasterimage_t* image,
char character, int x, int y, gate_color_t color)
{
gate_result_t ret = GATE_RESULT_FAILED;
gate_font_char_row8_bits_t const* bits;
int row, col;
gate_uint8_t pixel_bits;
int cur_row;
int image_width = (int)gate_rasterimage_width(image);
int image_height = (int)gate_rasterimage_height(image);
do
{
if ((y < 0) || (x < 0))
{
ret = GATE_RESULT_OUTOFBOUNDS;
break;
}
if ((y + descriptor->char_height >= image_height)
|| (x + descriptor->char_width >= image_width))
{
ret = GATE_RESULT_OUTOFBOUNDS;
break;
}
bits = descriptor->char_table[(gate_uint8_t)character];
if (bits == NULL)
{
ret = GATE_RESULT_NOMATCH;
break;
}
for (row = 0; row != descriptor->char_height; ++row)
{
pixel_bits = *((gate_uint8_t const*)&bits[row]);
cur_row = y + row;
for (col = 0; col != descriptor->char_width; ++col)
{
if (pixel_bits & (1 << col))
{
gate_rasterimage_set_pixel(image, x + col, cur_row, &color);
}
}
}
ret = GATE_RESULT_OK;
} while (0);
return ret;
}
static gate_result_t gate_font_print_text_generic(gate_font_descriptor_t const* descriptor, gate_rasterimage_t* image,
gate_string_t const* text, int x, int y, gate_color_t color)
{
char const* ptr = gate_string_ptr(text, 0);
gate_size_t len = gate_string_length(text);
while (len-- != 0)
{
gate_font_print_char_generic(descriptor, image, *ptr, x, y, color);
x += descriptor->char_width;
++ptr;
}
return GATE_RESULT_OK;
}
gate_result_t gate_font8_print_char(gate_rasterimage_t* image, char character, int x, int y, gate_color_t color)
{
return gate_font_print_char_generic(&gate_font8_descriptor, image, character, x, y, color);
}
gate_result_t gate_font8_print_text(gate_rasterimage_t* image, gate_string_t const* text, int x, int y, gate_color_t color)
{
return gate_font_print_text_generic(&gate_font8_descriptor, image, text, x, y, color);
}
gate_result_t gate_font16_print_char(gate_rasterimage_t* image, char character, int x, int y, gate_color_t color)
{
return gate_font_print_char_generic(&gate_font16_descriptor, image, character, x, y, color);
}
gate_result_t gate_font16_print_text(gate_rasterimage_t* image, gate_string_t const* text, int x, int y, gate_color_t color)
{
return gate_font_print_text_generic(&gate_font16_descriptor, image, text, x, y, color);
}
|