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This commit is contained in:
Skye Chappelle
2022-05-19 17:14:13 +00:00
parent 5247c34f50
commit ab32b30591
12612 changed files with 1905035 additions and 83 deletions
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1
tools/rsfont/.gitignore vendored Normal file
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rsfont

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Copyright (c) 2015-2016 YamaArashi
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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CC ?= gcc
CFLAGS = -Wall -Wextra -Werror -std=c11 -O2 -DPNG_SKIP_SETJMP_CHECK
LIBS = -lpng -lz
SRCS = main.c convert_png.c util.c font.c
.PHONY: all clean
ifeq ($(OS),Windows_NT)
EXE := .exe
else
EXE :=
endif
all: rsfont$(EXE)
@:
rsfont$(EXE): $(SRCS) convert_png.h gfx.h global.h util.h font.h
$(CC) $(CFLAGS) $(SRCS) -o $@ $(LDFLAGS) $(LIBS)
clean:
$(RM) rsfont rsfont.exe

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// Copyright (c) 2015 YamaArashi
#include <stdio.h>
#include <setjmp.h>
#include <png.h>
#include "global.h"
#include "convert_png.h"
#include "gfx.h"
void ReadPng(char *path, struct Image *image)
{
FILE *fp = fopen(path, "rb");
if (fp == NULL)
FATAL_ERROR("Failed to open \"%s\" for reading.\n", path);
unsigned char sig[8];
if (fread(sig, 8, 1, fp) != 1)
FATAL_ERROR("Failed to read PNG signature from \"%s\".\n", path);
if (png_sig_cmp(sig, 0, 8))
FATAL_ERROR("\"%s\" does not have a valid PNG signature.\n", path);
png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
if (!png_ptr)
FATAL_ERROR("Failed to create PNG read struct.\n");
png_infop info_ptr = png_create_info_struct(png_ptr);
if (!info_ptr)
FATAL_ERROR("Failed to create PNG info struct.\n");
if (setjmp(png_jmpbuf(png_ptr)))
FATAL_ERROR("Failed to init I/O for reading \"%s\".\n", path);
png_init_io(png_ptr, fp);
png_set_sig_bytes(png_ptr, 8);
png_read_info(png_ptr, info_ptr);
int bit_depth = png_get_bit_depth(png_ptr, info_ptr);
if (bit_depth != image->bitDepth)
FATAL_ERROR("\"%s\" has a bit depth of %d, but the expected bit depth is %d.\n", path, bit_depth, image->bitDepth);
int color_type = png_get_color_type(png_ptr, info_ptr);
if (color_type != PNG_COLOR_TYPE_GRAY && color_type != PNG_COLOR_TYPE_PALETTE)
FATAL_ERROR("\"%s\" has an unsupported color type.\n", path);
// Check if the image has a palette so that we can tell if the colors need to be inverted later.
// Don't read the palette because it's not needed for now.
image->hasPalette = (color_type == PNG_COLOR_TYPE_PALETTE);
image->width = png_get_image_width(png_ptr, info_ptr);
image->height = png_get_image_height(png_ptr, info_ptr);
int rowbytes = png_get_rowbytes(png_ptr, info_ptr);
image->pixels = malloc(image->height * rowbytes);
if (image->pixels == NULL)
FATAL_ERROR("Failed to allocate pixel buffer.\n");
png_bytepp row_pointers = malloc(image->height * sizeof(png_bytep));
if (row_pointers == NULL)
FATAL_ERROR("Failed to allocate row pointers.\n");
for (int i = 0; i < image->height; i++)
row_pointers[i] = (png_bytep)(image->pixels + (i * rowbytes));
if (setjmp(png_jmpbuf(png_ptr)))
FATAL_ERROR("Error reading from \"%s\".\n", path);
png_read_image(png_ptr, row_pointers);
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
free(row_pointers);
fclose(fp);
}
void SetPngPalette(png_structp png_ptr, png_infop info_ptr, struct Palette *palette)
{
png_colorp colors = malloc(palette->numColors * sizeof(png_color));
if (colors == NULL)
FATAL_ERROR("Failed to allocate PNG palette.\n");
for (int i = 0; i < palette->numColors; i++) {
colors[i].red = palette->colors[i].red;
colors[i].green = palette->colors[i].green;
colors[i].blue = palette->colors[i].blue;
}
png_set_PLTE(png_ptr, info_ptr, colors, palette->numColors);
free(colors);
}
void WritePng(char *path, struct Image *image)
{
FILE *fp = fopen(path, "wb");
if (fp == NULL)
FATAL_ERROR("Failed to open \"%s\" for writing.\n", path);
png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
if (!png_ptr)
FATAL_ERROR("Failed to create PNG write struct.\n");
png_infop info_ptr = png_create_info_struct(png_ptr);
if (!info_ptr)
FATAL_ERROR("Failed to create PNG info struct.\n");
if (setjmp(png_jmpbuf(png_ptr)))
FATAL_ERROR("Failed to init I/O for writing \"%s\".\n", path);
png_init_io(png_ptr, fp);
if (setjmp(png_jmpbuf(png_ptr)))
FATAL_ERROR("Error writing header for \"%s\".\n", path);
int color_type = image->hasPalette ? PNG_COLOR_TYPE_PALETTE : PNG_COLOR_TYPE_GRAY;
png_set_IHDR(png_ptr, info_ptr, image->width, image->height,
image->bitDepth, color_type, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
if (image->hasPalette) {
SetPngPalette(png_ptr, info_ptr, &image->palette);
if (image->hasTransparency) {
png_byte trans = 0;
png_set_tRNS(png_ptr, info_ptr, &trans, 1, 0);
}
}
png_write_info(png_ptr, info_ptr);
png_bytepp row_pointers = malloc(image->height * sizeof(png_bytep));
if (row_pointers == NULL)
FATAL_ERROR("Failed to allocate row pointers.\n");
int rowbytes = png_get_rowbytes(png_ptr, info_ptr);
for (int i = 0; i < image->height; i++)
row_pointers[i] = (png_bytep)(image->pixels + (i * rowbytes));
if (setjmp(png_jmpbuf(png_ptr)))
FATAL_ERROR("Error writing \"%s\".\n", path);
png_write_image(png_ptr, row_pointers);
if (setjmp(png_jmpbuf(png_ptr)))
FATAL_ERROR("Error ending write of \"%s\".\n", path);
png_write_end(png_ptr, NULL);
fclose(fp);
png_destroy_write_struct(&png_ptr, &info_ptr);
free(row_pointers);
}

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// Copyright (c) 2015 YamaArashi
#ifndef CONVERT_PNG_H
#define CONVERT_PNG_H
#include "gfx.h"
void ReadPng(char *path, struct Image *image);
void WritePng(char *path, struct Image *image);
#endif // CONVERT_PNG_H

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// Copyright(c) 2015-2016 YamaArashi
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include "global.h"
#include "font.h"
#include "gfx.h"
#include "util.h"
unsigned char gFontPalette[][3] =
{
{0xFF, 0xFF, 0xFF}, // bg (white)
{0x38, 0x38, 0x38}, // fg (dark grey)
{0xD8, 0xD8, 0xD8}, // shadow (light grey)
};
void ConvertFromTiles1Bpp(unsigned char *src, unsigned char *dest, int numGlyphs, int layout)
{
for (int glyph = 0; glyph < numGlyphs; glyph++)
{
if (layout == 0)
{
for (int i = 0; i < 8; i++)
{
uint8_t srcRow = src[(glyph * 8) + i];
for (int j = 0; j < 8; j++)
{
int x = ((glyph % 16) * 8) + j;
int y = ((glyph / 16) * 8) + i;
dest[(y * 128) + x] = (srcRow >> (7 - j)) & 1;
}
}
}
else
{
// layout type 1
int tile1Offset = glyph * 16;
int tile2Offset = tile1Offset + 8;
for (int i = 0; i < 8; i++)
{
uint8_t srcRow = src[tile1Offset + i];
for (int j = 0; j < 8; j++)
{
int x = ((glyph % 16) * 8) + j;
int y = ((glyph / 16) * 16) + i;
dest[(y * 128) + x] = (srcRow >> (7 - j)) & 1;
}
}
for (int i = 0; i < 8; i++)
{
uint8_t srcRow = src[tile2Offset + i];
for (int j = 0; j < 8; j++)
{
int x = ((glyph % 16) * 8) + j;
int y = ((glyph / 16) * 16) + 8 + i;
dest[(y * 128) + x] = (srcRow >> (7 - j)) & 1;
}
}
}
}
}
void ConvertToTiles1Bpp(unsigned char *src, unsigned char *dest, int numGlyphs, int layout)
{
for (int glyph = 0; glyph < numGlyphs; glyph++)
{
if (layout == 0)
{
for (int i = 0; i < 8; i++)
{
uint8_t destRow = 0;
for (int j = 0; j < 8; j++)
{
int x = ((glyph % 16) * 8) + j;
int y = ((glyph / 16) * 8) + i;
unsigned char color = src[(y * 128) + x];
if (color > 1)
FATAL_ERROR("More than 2 colors in 1 BPP font.\n");
destRow <<= 1;
destRow |= color;
}
dest[(glyph * 8) + i] = destRow;
}
}
else
{
// layout type 1
int tile1Offset = glyph * 16;
int tile2Offset = tile1Offset + 8;
for (int i = 0; i < 8; i++)
{
uint8_t destRow = 0;
for (int j = 0; j < 8; j++)
{
int x = ((glyph % 16) * 8) + j;
int y = ((glyph / 16) * 16) + i;
unsigned char color = src[(y * 128) + x];
if (color > 1)
FATAL_ERROR("More than 2 colors in 1 BPP font.\n");
destRow <<= 1;
destRow |= color;
}
dest[tile1Offset + i] = destRow;
}
for (int i = 0; i < 8; i++)
{
uint8_t destRow = 0;
for (int j = 0; j < 8; j++)
{
int x = ((glyph % 16) * 8) + j;
int y = ((glyph / 16) * 16) + 8 + i;
unsigned char color = src[(y * 128) + x];
if (color > 1)
FATAL_ERROR("More than 2 colors in 1 BPP font.\n");
destRow <<= 1;
destRow |= color;
}
dest[tile2Offset + i] = destRow;
}
}
}
}
void ConvertFromTiles4Bpp(unsigned char *src, unsigned char *dest, int numGlyphs, int layout)
{
static unsigned char table[16] =
{
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1,
};
for (int glyph = 0; glyph < numGlyphs; glyph++)
{
if (layout == 0)
{
int offset = glyph * 32;
for (int i = 0; i < 8; i++)
{
uint32_t srcRow = (src[offset + 3] << 24)
| (src[offset + 2] << 16)
| (src[offset + 1] << 8)
| src[offset];
for (int j = 0; j < 8; j++)
{
int x = ((glyph % 16) * 8) + j;
int y = ((glyph / 16) * 8) + i;
dest[(y * 128) + x] = table[srcRow & 0xF];
srcRow >>= 4;
}
offset += 4;
}
}
else
{
int tile1Offset;
int tile2Offset;
if (layout == 1)
{
tile1Offset = glyph * 64;
tile2Offset = tile1Offset + 32;
}
else
{
tile1Offset = ((glyph / 16) * 1024) + ((glyph % 16) * 32);
tile2Offset = tile1Offset + 512;
}
for (int i = 0; i < 8; i++)
{
uint32_t srcRow = (src[tile1Offset + 3] << 24)
| (src[tile1Offset + 2] << 16)
| (src[tile1Offset + 1] << 8)
| src[tile1Offset];
for (int j = 0; j < 8; j++)
{
int x = ((glyph % 16) * 8) + j;
int y = ((glyph / 16) * 16) + i;
dest[(y * 128) + x] = table[srcRow & 0xF];
srcRow >>= 4;
}
tile1Offset += 4;
}
for (int i = 0; i < 8; i++)
{
uint32_t srcRow = (src[tile2Offset + 3] << 24)
| (src[tile2Offset + 2] << 16)
| (src[tile2Offset + 1] << 8)
| src[tile2Offset];
for (int j = 0; j < 8; j++)
{
int x = ((glyph % 16) * 8) + j;
int y = ((glyph / 16) * 16) + 8 + i;
dest[(y * 128) + x] = table[srcRow & 0xF];
srcRow >>= 4;
}
tile2Offset += 4;
}
}
}
}
void ConvertToTiles4Bpp(unsigned char *src, unsigned char *dest, int numGlyphs, int layout)
{
static unsigned char table[3] =
{
0, 15, 14,
};
for (int glyph = 0; glyph < numGlyphs; glyph++)
{
if (layout == 0)
{
int offset = glyph * 32;
for (int i = 0; i < 8; i++)
{
uint32_t destRow = 0;
for (int j = 0; j < 8; j++)
{
int x = ((glyph % 16) * 8) + j;
int y = ((glyph / 16) * 8) + i;
unsigned char color = src[(y * 128) + x];
if (color > 2)
FATAL_ERROR("More than 3 colors in 4 BPP font.\n");
destRow >>= 4;
destRow |= (table[color] << 28);
}
dest[offset] = destRow & 0xFF;
dest[offset + 1] = (destRow >> 8) & 0xFF;
dest[offset + 2] = (destRow >> 16) & 0xFF;
dest[offset + 3] = (destRow >> 24) & 0xFF;
offset += 4;
}
}
else
{
int tile1Offset;
int tile2Offset;
if (layout == 1)
{
tile1Offset = glyph * 64;
tile2Offset = tile1Offset + 32;
}
else
{
tile1Offset = ((glyph / 16) * 1024) + ((glyph % 16) * 32);
tile2Offset = tile1Offset + 512;
}
for (int i = 0; i < 8; i++)
{
uint32_t destRow = 0;
for (int j = 0; j < 8; j++)
{
int x = ((glyph % 16) * 8) + j;
int y = ((glyph / 16) * 16) + i;
unsigned char color = src[(y * 128) + x];
if (color > 2)
FATAL_ERROR("More than 3 colors in 4 BPP font.\n");
destRow >>= 4;
destRow |= (table[color] << 28);
}
dest[tile1Offset] = destRow & 0xFF;
dest[tile1Offset + 1] = (destRow >> 8) & 0xFF;
dest[tile1Offset + 2] = (destRow >> 16) & 0xFF;
dest[tile1Offset + 3] = (destRow >> 24) & 0xFF;
tile1Offset += 4;
}
for (int i = 0; i < 8; i++)
{
uint32_t destRow = 0;
for (int j = 0; j < 8; j++)
{
int x = ((glyph % 16) * 8) + j;
int y = ((glyph / 16) * 16) + 8 + i;
unsigned char color = src[(y * 128) + x];
if (color > 2)
FATAL_ERROR("More than 3 colors in 4 BPP font.\n");
destRow >>= 4;
destRow |= (table[color] << 28);
}
dest[tile2Offset] = destRow & 0xFF;
dest[tile2Offset + 1] = (destRow >> 8) & 0xFF;
dest[tile2Offset + 2] = (destRow >> 16) & 0xFF;
dest[tile2Offset + 3] = (destRow >> 24) & 0xFF;
tile2Offset += 4;
}
}
}
}
static void SetFontPalette(struct Image *image)
{
image->hasPalette = true;
image->palette.numColors = 3;
for (int i = 0; i < image->palette.numColors; i++)
{
image->palette.colors[i].red = gFontPalette[i][0];
image->palette.colors[i].green = gFontPalette[i][1];
image->palette.colors[i].blue = gFontPalette[i][2];
}
image->hasTransparency = false;
}
int CalcFileSize(int numGlyphs, int bpp, int layout)
{
if (layout == 2)
{
// assume 4 BPP
int numFullRows = numGlyphs / 16;
int remainder = numGlyphs % 16;
int fullRowsSize = numFullRows * 1024;
int remainderSize = 0;
if (remainder != 0)
remainderSize = 1024 - (16 - remainder) * 32;
return fullRowsSize + remainderSize;
}
else
{
int tilesPerGlyph = layout > 0 ? 2 : 1;
int bytesPerTile = 8 * bpp;
return numGlyphs * tilesPerGlyph * bytesPerTile;
}
}
void ReadFont(char *path, struct Image *image, int numGlyphs, int bpp, int layout)
{
int fileSize;
unsigned char *buffer = ReadWholeFile(path, &fileSize);
int expectedFileSize = CalcFileSize(numGlyphs, bpp, layout);
if (fileSize != expectedFileSize)
FATAL_ERROR("The file size is %d but should be %d.\n", fileSize, expectedFileSize);
int numRows = (numGlyphs + 15) / 16;
int rowHeight = layout > 0 ? 16 : 8;
image->width = 128;
image->height = numRows * rowHeight;
image->bitDepth = 8;
image->pixels = calloc(image->width * image->height, 1);
if (image->pixels == NULL)
FATAL_ERROR("Failed to allocate memory for font.\n");
if (bpp == 1)
ConvertFromTiles1Bpp(buffer, image->pixels, numGlyphs, layout);
else
ConvertFromTiles4Bpp(buffer, image->pixels, numGlyphs, layout);
free(buffer);
SetFontPalette(image);
}
void WriteFont(char *path, struct Image *image, int numGlyphs, int bpp, int layout)
{
if (image->width != 128)
FATAL_ERROR("The width of the font image (%d) is not 128.\n", image->width);
int numRows = (numGlyphs + 15) / 16;
int rowHeight = layout > 0 ? 16 : 8;
int expectedHeight = numRows * rowHeight;
if (image->height < expectedHeight)
FATAL_ERROR("The height of the font image (%d) is less than %d.\n", image->height, expectedHeight);
int fileSize = CalcFileSize(numGlyphs, bpp, layout);
unsigned char *buffer = calloc(fileSize, 1);
if (buffer == NULL)
FATAL_ERROR("Failed to allocate memory for font.\n");
if (bpp == 1)
ConvertToTiles1Bpp(image->pixels, buffer, numGlyphs, layout);
else
ConvertToTiles4Bpp(image->pixels, buffer, numGlyphs, layout);
WriteWholeFile(path, buffer, fileSize);
free(buffer);
}

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// Copyright(c) 2015-2016 YamaArashi
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#ifndef FONT_H
#define FONT_H
#include <stdbool.h>
#include "gfx.h"
void ReadFont(char *path, struct Image *image, int numGlyphs, int bpp, int layout);
void WriteFont(char *path, struct Image *image, int numGlyphs, int bpp, int layout);
#endif // FONT_H

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// Copyright(c) 2015-2016 YamaArashi
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#ifndef GFX_H
#define GFX_H
#include <stdint.h>
#include <stdbool.h>
struct Color
{
unsigned char red;
unsigned char green;
unsigned char blue;
};
struct Palette
{
struct Color colors[256];
int numColors;
};
struct Image {
int width;
int height;
int bitDepth;
unsigned char *pixels;
bool hasPalette;
struct Palette palette;
bool hasTransparency;
};
#endif // GFX_H

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// Copyright (c) 2015 YamaArashi
#ifndef GLOBAL_H
#define GLOBAL_H
#include <stdio.h>
#include <stdlib.h>
#ifdef _MSC_VER
#define FATAL_ERROR(format, ...) \
do { \
fprintf(stderr, format, __VA_ARGS__); \
exit(1); \
} while (0)
#define UNUSED
#else
#define FATAL_ERROR(format, ...) \
do { \
fprintf(stderr, format, ##__VA_ARGS__); \
exit(1); \
} while (0)
#define UNUSED __attribute__((__unused__))
#endif // _MSC_VER
#endif // GLOBAL_H

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// Copyright(c) 2015-2016 YamaArashi
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#include <stdio.h>
#include <string.h>
#include <stdbool.h>
#include "global.h"
#include "util.h"
#include "gfx.h"
#include "convert_png.h"
#include "font.h"
int ExtensionToBpp(const char *extension)
{
if (!strcmp(extension, "1bpp"))
return 1;
else if (!strcmp(extension, "4bpp"))
return 4;
return 0;
}
int main(int argc, char **argv)
{
if (argc < 5)
FATAL_ERROR("Usage: rsfont INPUT_FILE OUTPUT_FILE NUM_GLYPHS LAYOUT_TYPE\n");
char *inputPath = argv[1];
char *outputPath = argv[2];
char *inputFileExtension = GetFileExtension(inputPath);
char *outputFileExtension = GetFileExtension(outputPath);
if (inputFileExtension == NULL)
FATAL_ERROR("Input file \"%s\" has no extension.\n", inputPath);
if (outputFileExtension == NULL)
FATAL_ERROR("Output file \"%s\" has no extension.\n", outputPath);
int numGlyphs;
int bpp;
int layout;
if (!ParseNumber(argv[3], NULL, 10, &numGlyphs))
FATAL_ERROR("Failed to parse number of glyphs.\n");
if (!ParseNumber(argv[4], NULL, 10, &layout))
FATAL_ERROR("Failed to parse layout type.\n");
if (layout < 0 || layout > 2)
FATAL_ERROR("Layout type %d is invalid. Layout type must be 0, 1, or 2.\n", layout);
bool toPng;
if (!strcmp(inputFileExtension, "png") && (bpp = ExtensionToBpp(outputFileExtension)) != 0)
toPng = false;
else if ((bpp = ExtensionToBpp(inputFileExtension)) != 0 && !strcmp(outputFileExtension, "png"))
toPng = true;
else
FATAL_ERROR("Don't know how to convert \"%s\" to \"%s\".\n", inputPath, outputPath);
if (bpp == 1 && layout == 2)
FATAL_ERROR("Layout type 2 is not supported with 1 BPP fonts.\n");
struct Image image;
if (toPng)
{
ReadFont(inputPath, &image, numGlyphs, bpp, layout);
WritePng(outputPath, &image);
}
else
{
image.bitDepth = 8;
ReadPng(inputPath, &image);
WriteFont(outputPath, &image, numGlyphs, bpp, layout);
}
}

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// Copyright (c) 2015 YamaArashi
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <errno.h>
#include <limits.h>
#include "global.h"
#include "util.h"
bool ParseNumber(char *s, char **end, int radix, int *intValue)
{
char *localEnd;
if (end == NULL)
end = &localEnd;
errno = 0;
const long longValue = strtol(s, end, radix);
if (*end == s)
return false; // not a number
if ((longValue == LONG_MIN || longValue == LONG_MAX) && errno == ERANGE)
return false;
if (longValue > INT_MAX)
return false;
if (longValue < INT_MIN)
return false;
*intValue = (int)longValue;
return true;
}
char *GetFileExtension(char *path)
{
char *extension = path;
while (*extension != 0)
extension++;
while (extension > path && *extension != '.')
extension--;
if (extension == path)
return NULL;
extension++;
if (*extension == 0)
return NULL;
return extension;
}
unsigned char *ReadWholeFile(char *path, int *size)
{
FILE *fp = fopen(path, "rb");
if (fp == NULL)
FATAL_ERROR("Failed to open \"%s\" for reading.\n", path);
fseek(fp, 0, SEEK_END);
*size = ftell(fp);
unsigned char *buffer = malloc(*size);
if (buffer == NULL)
FATAL_ERROR("Failed to allocate memory for reading \"%s\".\n", path);
rewind(fp);
if (fread(buffer, *size, 1, fp) != 1)
FATAL_ERROR("Failed to read \"%s\".\n", path);
fclose(fp);
return buffer;
}
unsigned char *ReadWholeFileZeroPadded(char *path, int *size, int padAmount)
{
FILE *fp = fopen(path, "rb");
if (fp == NULL)
FATAL_ERROR("Failed to open \"%s\" for reading.\n", path);
fseek(fp, 0, SEEK_END);
*size = ftell(fp);
unsigned char *buffer = calloc(*size + padAmount, 1);
if (buffer == NULL)
FATAL_ERROR("Failed to allocate memory for reading \"%s\".\n", path);
rewind(fp);
if (fread(buffer, *size, 1, fp) != 1)
FATAL_ERROR("Failed to read \"%s\".\n", path);
fclose(fp);
return buffer;
}
void WriteWholeFile(char *path, void *buffer, int bufferSize)
{
FILE *fp = fopen(path, "wb");
if (fp == NULL)
FATAL_ERROR("Failed to open \"%s\" for writing.\n", path);
if (fwrite(buffer, bufferSize, 1, fp) != 1)
FATAL_ERROR("Failed to write to \"%s\".\n", path);
fclose(fp);
}

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// Copyright (c) 2015 YamaArashi
#ifndef UTIL_H
#define UTIL_H
#include <stdbool.h>
bool ParseNumber(char *s, char **end, int radix, int *intValue);
char *GetFileExtension(char *path);
unsigned char *ReadWholeFile(char *path, int *size);
unsigned char *ReadWholeFileZeroPadded(char *path, int *size, int padAmount);
void WriteWholeFile(char *path, void *buffer, int bufferSize);
#endif // UTIL_H