10 #include "../stdafx.h"
11 #include "../gfx_func.h"
12 #include "../fileio_func.h"
14 #include "../settings_type.h"
15 #include "../strings_func.h"
16 #include "table/strings.h"
18 #include "../core/math_func.hpp"
19 #include "../core/alloc_type.hpp"
20 #include "../core/bitmath_func.hpp"
23 #include "../safeguards.h"
37 static byte warning_level = 0;
38 if (warning_level == 0) {
42 DEBUG(sprite, warning_level,
"[%i] Loading corrupted sprite from %s at position %i", line,
FioGetFilename(file_slot), (
int)file_pos);
62 std::unique_ptr<byte[]> dest_orig(
new byte[num]);
63 byte *dest = dest_orig.get();
64 const int64 dest_size = num;
72 int size = (code == 0) ? 0x80 : code;
75 for (; size > 0; size--) {
81 const uint data_offset = ((code & 7) << 8) |
FioReadByte();
82 if (dest - data_offset < dest_orig.get())
return WarnCorruptSprite(file_slot, file_pos, __LINE__);
83 int size = -(code >> 3);
86 for (; size > 0; size--) {
87 *dest = *(dest - data_offset);
99 if (colour_fmt &
SCC_RGB) bpp += 3;
101 if (colour_fmt &
SCC_PAL) bpp++;
105 for (
int y = 0; y < sprite->
height; y++) {
106 bool last_item =
false;
109 if (container_format >= 2 && dest_size > UINT16_MAX) {
110 offset = (dest_orig[y * 4 + 3] << 24) | (dest_orig[y * 4 + 2] << 16) | (dest_orig[y * 4 + 1] << 8) | dest_orig[y * 4];
112 offset = (dest_orig[y * 2 + 1] << 8) | dest_orig[y * 2];
116 dest = dest_orig.get() + offset;
119 if (dest + (container_format >= 2 && sprite->
width > 256 ? 4 : 2) > dest_orig.get() + dest_size) {
126 if (container_format >= 2 && sprite->
width > 256) {
130 last_item = (dest[1] & 0x80) != 0;
131 length = ((dest[1] & 0x7F) << 8) | dest[0];
132 skip = (dest[3] << 8) | dest[2];
138 last_item = ((*dest) & 0x80) != 0;
139 length = (*dest++) & 0x7F;
143 data = &sprite->
data[y * sprite->
width + skip];
145 if (skip + length > sprite->
width || dest + length * bpp > dest_orig.get() + dest_size) {
149 for (
int x = 0; x < length; x++) {
155 data->
a = (colour_fmt &
SCC_ALPHA) ? *dest++ : 0xFF;
157 switch (sprite_type) {
159 case ST_FONT: data->
m = std::min<uint>(*dest, 2u);
break;
160 default: data->
m = *dest;
break;
163 if (colour_fmt ==
SCC_PAL && *dest == 0) data->
a = 0x00;
168 }
while (!last_item);
171 if (dest_size < sprite->width * sprite->
height * bpp) {
175 if (dest_size > sprite->
width * sprite->
height * bpp) {
176 static byte warning_level = 0;
177 DEBUG(sprite, warning_level,
"Ignoring " OTTD_PRINTF64
" unused extra bytes from the sprite from %s at position %i", dest_size - sprite->
width * sprite->
height * bpp,
FioGetFilename(file_slot), (
int)file_pos);
181 dest = dest_orig.get();
183 for (
int i = 0; i < sprite->
width * sprite->
height; i++) {
184 byte *pixel = &dest[i * bpp];
187 sprite->
data[i].
r = *pixel++;
188 sprite->
data[i].
g = *pixel++;
189 sprite->
data[i].
b = *pixel++;
193 switch (sprite_type) {
195 case ST_FONT: sprite->
data[i].
m = std::min<uint>(*pixel, 2u);
break;
196 default: sprite->
data[i].
m = *pixel;
break;
199 if (colour_fmt ==
SCC_PAL && *pixel == 0) sprite->
data[i].
a = 0x00;
211 if (load_32bpp)
return 0;
221 if (type == 0xFF)
return 0;
231 if (sprite[zoom_lvl].width > INT16_MAX) {
238 num = (type & 0x02) ? sprite[zoom_lvl].width * sprite[zoom_lvl].height : num - 8;
240 if (
DecodeSingleSprite(&sprite[zoom_lvl], file_slot, file_pos, sprite_type, num, type, zoom_lvl,
SCC_PAL, 1))
return 1 << zoom_lvl;
250 if (file_pos == SIZE_MAX)
return 0;
257 uint8 loaded_sprites = 0;
264 if (type == 0xFF)
return 0;
269 bool is_wanted_colour_depth = (colour != 0 && (load_32bpp ? colour !=
SCC_PAL : colour ==
SCC_PAL));
270 bool is_wanted_zoom_lvl;
275 is_wanted_zoom_lvl = (zoom == 0);
278 if (is_wanted_colour_depth && is_wanted_zoom_lvl) {
281 if (
HasBit(loaded_sprites, zoom_lvl)) {
283 DEBUG(sprite, 1,
"Ignoring duplicate zoom level sprite %u from %s",
id,
FioGetFilename(file_slot));
293 if (sprite[zoom_lvl].width > INT16_MAX || sprite[zoom_lvl].height > INT16_MAX) {
303 if (colour &
SCC_RGB) bpp += 3;
313 bool valid =
DecodeSingleSprite(&sprite[zoom_lvl], file_slot, file_pos, sprite_type, decomp_size, type, zoom_lvl, colour, 2);
327 return loaded_sprites;
332 if (this->container_ver >= 2) {
333 return LoadSpriteV2(sprite, file_slot, file_pos, sprite_type, load_32bpp);
335 return LoadSpriteV1(sprite, file_slot, file_pos, sprite_type, load_32bpp);