2gsformats.c File Reference
Formats for the Apple II GS Support APF = Apple Preferred Format. More...
#include <stdio.h>#include <string.h>#include <stdlib.h>#include "global.h"#include "fileformats.h"#include "loadsavefuncs.h"#include "io.h"#include "gfx2mem.h"#include "gfx2log.h"#include "packbytes.h"
Include dependency graph for 2gsformats.c:
Data Structures | |
| struct | line_data |
Macros | |
| #define | COMPONENTS(x) linepal[x].R, linepal[x].G, linepal[x].B |
| #define | WRITE2GS_PIXELS |
| set the (2 or 4) pixels for the byte. More... | |
Functions | |
| void | Test_2GS (T_IO_Context *context, FILE *file) |
| Test for an Apple 2 GS picture file. More... | |
| static int | Load_2GS_Palette (T_Components *palette, FILE *file) |
| Load a 16 entry Apple II GS palette from file. More... | |
| void | Load_2GS (T_IO_Context *context) |
| static int | Save_2GS_Palette_Entry (FILE *file, const T_Components *palette) |
| Save a 16 entry Apple II GS palette to file. More... | |
| void | Save_2GS (T_IO_Context *context) |
Detailed Description
Formats for the Apple II GS Support APF = Apple Preferred Format.
Macro Definition Documentation
◆ COMPONENTS
| #define COMPONENTS | ( | x | ) | linepal[x].R, linepal[x].G, linepal[x].B |
◆ WRITE2GS_PIXELS
| #define WRITE2GS_PIXELS |
Value:
if (multipalcount > 0) \
{ \
if (linemode & 0x80) \
{ \
Set_pixel_24b(context, x++, y, COMPONENTS(8 + (pixel >> 6))); \
Set_pixel_24b(context, x++, y, COMPONENTS(12 + ((pixel >> 4) & 3))); \
Set_pixel_24b(context, x++, y, COMPONENTS((pixel >> 2) & 3)); \
Set_pixel_24b(context, x++, y, COMPONENTS(4 + (pixel & 3))); \
} \
else \
{ \
Set_pixel_24b(context, x++, y, COMPONENTS(pixel >> 4)); \
Set_pixel_24b(context, x++, y, COMPONENTS(pixel & 15)); \
} \
} \
else \
{ \
if (linemode & 0x80) \
{ \
Set_pixel(context, x++, y, (linemode << 4) | 8 | (pixel >> 6)); \
Set_pixel(context, x++, y, (linemode << 4) | 12 | ((pixel >> 4) & 3)); \
Set_pixel(context, x++, y, (linemode << 4) | ((pixel >> 2) & 3)); \
Set_pixel(context, x++, y, (linemode << 4) | 4 | (pixel & 3)); \
} \
else \
{ \
Set_pixel(context, x++, y, (linemode << 4) | (pixel >> 4)); \
Set_pixel(context, x++, y, (linemode << 4) | (pixel & 15)); \
} \
}
set the (2 or 4) pixels for the byte.
Function Documentation
◆ Load_2GS_Palette()
|
static |
Load a 16 entry Apple II GS palette from file.
References T_Components::B, T_Components::G, T_Components::R, and Read_word_le().
Referenced by Load_2GS().
◆ Save_2GS_Palette_Entry()
|
static |
Save a 16 entry Apple II GS palette to file.
References T_Components::B, T_Components::G, T_Components::R, and Write_word_le().
Referenced by Save_2GS().
