OpenTTD Source: src/blitter/32bpp_optimized.cpp Source File

OpenTTD Source 14.0-beta1

32bpp_optimized.cpp
Go to the documentation of this file.
1 /*
2 * This file is part of OpenTTD.
3 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
4 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
5 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
6 */
7
10 #include "../stdafx.h"
11 #include "../zoom_func.h"
12 #include "../settings_type.h"
13 #include "../palette_func.h"
14 #include "32bpp_optimized.hpp"
15
16 #include "../safeguards.h"
17
19 static FBlitter_32bppOptimized iFBlitter_32bppOptimized;
20
28 template <BlitterMode mode, bool Tpal_to_rgb>
29 inline void Blitter_32bppOptimized::Draw(const Blitter::BlitterParams *bp, ZoomLevel zoom)
30 {
31 const SpriteData *src = (const SpriteData *)bp->sprite;
32
33 /* src_px : each line begins with uint32_t n = 'number of bytes in this line',
34 * then n times is the Colour struct for this line */
35 const Colour *src_px = (const Colour *)(src->data + src->offset[zoom][0]);
36 /* src_n : each line begins with uint32_t n = 'number of bytes in this line',
37 * then interleaved stream of 'm' and 'n' channels. 'm' is remap,
38 * 'n' is number of bytes with the same alpha channel class */
39 const uint16_t *src_n = (const uint16_t *)(src->data + src->offset[zoom][1]);
40
41 /* skip upper lines in src_px and src_n */
42 for (uint i = bp->skip_top; i != 0; i--) {
43 src_px = (const Colour *)((const byte *)src_px + *(const uint32_t *)src_px);
44 src_n = (const uint16_t *)((const byte *)src_n + *(const uint32_t *)src_n);
45 }
46
47 /* skip lines in dst */
48 Colour *dst = (Colour *)bp->dst + bp->top * bp->pitch + bp->left;
49
50 /* store so we don't have to access it via bp every time (compiler assumes pointer aliasing) */
51 const byte *remap = bp->remap;
52
53 for (int y = 0; y < bp->height; y++) {
54 /* next dst line begins here */
55 Colour *dst_ln = dst + bp->pitch;
56
57 /* next src line begins here */
58 const Colour *src_px_ln = (const Colour *)((const byte *)src_px + *(const uint32_t *)src_px);
59 src_px++;
60
61 /* next src_n line begins here */
62 const uint16_t *src_n_ln = (const uint16_t *)((const byte *)src_n + *(const uint32_t *)src_n);
63 src_n += 2;
64
65 /* we will end this line when we reach this point */
66 Colour *dst_end = dst + bp->skip_left;
67
68 /* number of pixels with the same alpha channel class */
69 uint n;
70
71 while (dst < dst_end) {
72 n = *src_n++;
73
74 if (src_px->a == 0) {
75 dst += n;
76 src_px ++;
77 src_n++;
78 } else {
79 if (dst + n > dst_end) {
80 uint d = dst_end - dst;
81 src_px += d;
82 src_n += d;
83
84 dst = dst_end - bp->skip_left;
85 dst_end = dst + bp->width;
86
87 n = std::min(n - d, (uint)bp->width);
88 goto draw;
89 }
90 dst += n;
91 src_px += n;
92 src_n += n;
93 }
94 }
95
96 dst -= bp->skip_left;
97 dst_end -= bp->skip_left;
98
99 dst_end += bp->width;
100
101 while (dst < dst_end) {
102 n = std::min<uint>(*src_n++, dst_end - dst);
103
104 if (src_px->a == 0) {
105 dst += n;
106 src_px++;
107 src_n++;
108 continue;
109 }
110
111 draw:;
112
113 switch (mode) {
114 case BM_COLOUR_REMAP:
115 if (src_px->a == 255) {
116 do {
117 uint m = *src_n;
118 /* In case the m-channel is zero, do not remap this pixel in any way */
119 if (m == 0) {
120 *dst = src_px->data;
121 } else {
122 uint r = remap[GB(m, 0, 8)];
123 if (r != 0) *dst = this->AdjustBrightness(this->LookupColourInPalette(r), GB(m, 8, 8));
124 }
125 dst++;
126 src_px++;
127 src_n++;
128 } while (--n != 0);
129 } else {
130 do {
131 uint m = *src_n;
132 if (m == 0) {
133 *dst = ComposeColourRGBANoCheck(src_px->r, src_px->g, src_px->b, src_px->a, *dst);
134 } else {
135 uint r = remap[GB(m, 0, 8)];
136 if (r != 0) *dst = ComposeColourPANoCheck(this->AdjustBrightness(this->LookupColourInPalette(r), GB(m, 8, 8)), src_px->a, *dst);
137 }
138 dst++;
139 src_px++;
140 src_n++;
141 } while (--n != 0);
142 }
143 break;
144
145 case BM_CRASH_REMAP:
146 if (src_px->a == 255) {
147 do {
148 uint m = *src_n;
149 if (m == 0) {
150 uint8_t g = MakeDark(src_px->r, src_px->g, src_px->b);
151 *dst = ComposeColourRGBA(g, g, g, src_px->a, *dst);
152 } else {
153 uint r = remap[GB(m, 0, 8)];
154 if (r != 0) *dst = this->AdjustBrightness(this->LookupColourInPalette(r), GB(m, 8, 8));
155 }
156 dst++;
157 src_px++;
158 src_n++;
159 } while (--n != 0);
160 } else {
161 do {
162 uint m = *src_n;
163 if (m == 0) {
164 if (src_px->a != 0) {
165 uint8_t g = MakeDark(src_px->r, src_px->g, src_px->b);
166 *dst = ComposeColourRGBA(g, g, g, src_px->a, *dst);
167 }
168 } else {
169 uint r = remap[GB(m, 0, 8)];
170 if (r != 0) *dst = ComposeColourPANoCheck(this->AdjustBrightness(this->LookupColourInPalette(r), GB(m, 8, 8)), src_px->a, *dst);
171 }
172 dst++;
173 src_px++;
174 src_n++;
175 } while (--n != 0);
176 }
177 break;
178
179 case BM_BLACK_REMAP:
180 do {
181 *dst = Colour(0, 0, 0);
182 dst++;
183 src_px++;
184 src_n++;
185 } while (--n != 0);
186 break;
187
188 case BM_TRANSPARENT:
189 /* Make the current colour a bit more black, so it looks like this image is transparent */
190 src_n += n;
191 if (src_px->a == 255) {
192 src_px += n;
193 do {
194 *dst = MakeTransparent(*dst, 3, 4);
195 dst++;
196 } while (--n != 0);
197 } else {
198 do {
199 *dst = MakeTransparent(*dst, (256 * 4 - src_px->a), 256 * 4);
200 dst++;
201 src_px++;
202 } while (--n != 0);
203 }
204 break;
205
206 case BM_TRANSPARENT_REMAP:
207 /* Apply custom transparency remap. */
208 src_n += n;
209 if (src_px->a != 0) {
210 src_px += n;
211 do {
212 *dst = this->LookupColourInPalette(remap[GetNearestColourIndex(*dst)]);
213 dst++;
214 } while (--n != 0);
215 } else {
216 dst += n;
217 src_px += n;
218 }
219 break;
220
221 default:
222 if (src_px->a == 255) {
223 /* faster than memcpy(), n is usually low */
224 do {
225 if (Tpal_to_rgb && *src_n != 0) {
226 /* Convert the mapping channel to a RGB value */
227 *dst = this->AdjustBrightness(this->LookupColourInPalette(GB(*src_n, 0, 8)), GB(*src_n, 8, 8)).data;
228 } else {
229 *dst = src_px->data;
230 }
231 dst++;
232 src_px++;
233 src_n++;
234 } while (--n != 0);
235 } else {
236 do {
237 if (Tpal_to_rgb && *src_n != 0) {
238 /* Convert the mapping channel to a RGB value */
239 Colour colour = this->AdjustBrightness(this->LookupColourInPalette(GB(*src_n, 0, 8)), GB(*src_n, 8, 8));
240 *dst = ComposeColourRGBANoCheck(colour.r, colour.g, colour.b, src_px->a, *dst);
241 } else {
242 *dst = ComposeColourRGBANoCheck(src_px->r, src_px->g, src_px->b, src_px->a, *dst);
243 }
244 dst++;
245 src_px++;
246 src_n++;
247 } while (--n != 0);
248 }
249 break;
250 }
251 }
252
253 dst = dst_ln;
254 src_px = src_px_ln;
255 src_n = src_n_ln;
256 }
257 }
258
259 template <bool Tpal_to_rgb>
260 void Blitter_32bppOptimized::Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom)
261 {
262 switch (mode) {
263 default: NOT_REACHED();
264 case BM_NORMAL: Draw<BM_NORMAL, Tpal_to_rgb>(bp, zoom); return;
265 case BM_COLOUR_REMAP: Draw<BM_COLOUR_REMAP, Tpal_to_rgb>(bp, zoom); return;
266 case BM_TRANSPARENT: Draw<BM_TRANSPARENT, Tpal_to_rgb>(bp, zoom); return;
267 case BM_TRANSPARENT_REMAP: Draw<BM_TRANSPARENT_REMAP, Tpal_to_rgb>(bp, zoom); return;
268 case BM_CRASH_REMAP: Draw<BM_CRASH_REMAP, Tpal_to_rgb>(bp, zoom); return;
269 case BM_BLACK_REMAP: Draw<BM_BLACK_REMAP, Tpal_to_rgb>(bp, zoom); return;
270 }
271 }
272
273 template void Blitter_32bppOptimized::Draw<true>(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom);
274 template void Blitter_32bppOptimized::Draw<false>(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom);
275
283 void Blitter_32bppOptimized::Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom)
284 {
285 this->Draw<false>(bp, mode, zoom);
286 }
287
288 template <bool Tpal_to_rgb> Sprite *Blitter_32bppOptimized::EncodeInternal(const SpriteLoader::SpriteCollection &sprite, AllocatorProc *allocator)
289 {
290 /* streams of pixels (a, r, g, b channels)
291 *
292 * stored in separated stream so data are always aligned on 4B boundary */
293 Colour *dst_px_orig[ZOOM_LVL_END];
294
295 /* interleaved stream of 'm' channel and 'n' channel
296 * 'n' is number of following pixels with the same alpha channel class
297 * there are 3 classes: 0, 255, others
298 *
299 * it has to be stored in one stream so fewer registers are used -
300 * x86 has problems with register allocation even with this solution */
301 uint16_t *dst_n_orig[ZOOM_LVL_END];
302
303 /* lengths of streams */
304 uint32_t lengths[ZOOM_LVL_END][2];
305
306 ZoomLevel zoom_min;
307 ZoomLevel zoom_max;
308
309 if (sprite[ZOOM_LVL_NORMAL].type == SpriteType::Font) {
310 zoom_min = ZOOM_LVL_NORMAL;
311 zoom_max = ZOOM_LVL_NORMAL;
312 } else {
313 zoom_min = _settings_client.gui.zoom_min;
314 zoom_max = _settings_client.gui.zoom_max;
315 if (zoom_max == zoom_min) zoom_max = ZOOM_LVL_MAX;
316 }
317
318 for (ZoomLevel z = zoom_min; z <= zoom_max; z++) {
319 const SpriteLoader::Sprite *src_orig = &sprite[z];
320
321 uint size = src_orig->height * src_orig->width;
322
323 dst_px_orig[z] = CallocT<Colour>(size + src_orig->height * 2);
324 dst_n_orig[z] = CallocT<uint16_t>(size * 2 + src_orig->height * 4 * 2);
325
326 uint32_t *dst_px_ln = (uint32_t *)dst_px_orig[z];
327 uint32_t *dst_n_ln = (uint32_t *)dst_n_orig[z];
328
329 const SpriteLoader::CommonPixel *src = (const SpriteLoader::CommonPixel *)src_orig->data;
330
331 for (uint y = src_orig->height; y > 0; y--) {
332 /* Index 0 of dst_px and dst_n is left as space to save the length of the row to be filled later. */
333 Colour *dst_px = (Colour *)&dst_px_ln[1];
334 uint16_t *dst_n = (uint16_t *)&dst_n_ln[1];
335
336 uint16_t *dst_len = dst_n++;
337
338 uint last = 3;
339 int len = 0;
340
341 for (uint x = src_orig->width; x > 0; x--) {
342 uint8_t a = src->a;
343 uint t = a > 0 && a < 255 ? 1 : a;
344
345 if (last != t || len == 65535) {
346 if (last != 3) {
347 *dst_len = len;
348 dst_len = dst_n++;
349 }
350 len = 0;
351 }
352
353 last = t;
354 len++;
355
356 if (a != 0) {
357 dst_px->a = a;
358 *dst_n = src->m;
359 if (src->m != 0) {
360 /* Get brightest value */
361 uint8_t rgb_max = std::max({ src->r, src->g, src->b });
362
363 /* Black pixel (8bpp or old 32bpp image), so use default value */
364 if (rgb_max == 0) rgb_max = DEFAULT_BRIGHTNESS;
365 *dst_n |= rgb_max << 8;
366
367 if (Tpal_to_rgb) {
368 /* Pre-convert the mapping channel to a RGB value */
369 Colour colour = this->AdjustBrightness(this->LookupColourInPalette(src->m), rgb_max);
370 dst_px->r = colour.r;
371 dst_px->g = colour.g;
372 dst_px->b = colour.b;
373 } else {
374 dst_px->r = src->r;
375 dst_px->g = src->g;
376 dst_px->b = src->b;
377 }
378 } else {
379 dst_px->r = src->r;
380 dst_px->g = src->g;
381 dst_px->b = src->b;
382 }
383 dst_px++;
384 dst_n++;
385 } else if (len == 1) {
386 dst_px++;
387 *dst_n = src->m;
388 dst_n++;
389 }
390
391 src++;
392 }
393
394 if (last != 3) {
395 *dst_len = len;
396 }
397
398 dst_px = (Colour *)AlignPtr(dst_px, 4);
399 dst_n = (uint16_t *)AlignPtr(dst_n, 4);
400
401 *dst_px_ln = (uint8_t *)dst_px - (uint8_t *)dst_px_ln;
402 *dst_n_ln = (uint8_t *)dst_n - (uint8_t *)dst_n_ln;
403
404 dst_px_ln = (uint32_t *)dst_px;
405 dst_n_ln = (uint32_t *)dst_n;
406 }
407
408 lengths[z][0] = (byte *)dst_px_ln - (byte *)dst_px_orig[z]; // all are aligned to 4B boundary
409 lengths[z][1] = (byte *)dst_n_ln - (byte *)dst_n_orig[z];
410 }
411
412 uint len = 0; // total length of data
413 for (ZoomLevel z = zoom_min; z <= zoom_max; z++) {
414 len += lengths[z][0] + lengths[z][1];
415 }
416
417 Sprite *dest_sprite = (Sprite *)allocator(sizeof(*dest_sprite) + sizeof(SpriteData) + len);
418
419 dest_sprite->height = sprite[ZOOM_LVL_NORMAL].height;
420 dest_sprite->width = sprite[ZOOM_LVL_NORMAL].width;
421 dest_sprite->x_offs = sprite[ZOOM_LVL_NORMAL].x_offs;
422 dest_sprite->y_offs = sprite[ZOOM_LVL_NORMAL].y_offs;
423
424 SpriteData *dst = (SpriteData *)dest_sprite->data;
425 memset(dst, 0, sizeof(*dst));
426
427 for (ZoomLevel z = zoom_min; z <= zoom_max; z++) {
428 dst->offset[z][0] = z == zoom_min ? 0 : lengths[z - 1][1] + dst->offset[z - 1][1];
429 dst->offset[z][1] = lengths[z][0] + dst->offset[z][0];
430
431 memcpy(dst->data + dst->offset[z][0], dst_px_orig[z], lengths[z][0]);
432 memcpy(dst->data + dst->offset[z][1], dst_n_orig[z], lengths[z][1]);
433
434 free(dst_px_orig[z]);
435 free(dst_n_orig[z]);
436 }
437
438 return dest_sprite;
439 }
440
441 template Sprite *Blitter_32bppOptimized::EncodeInternal<true>(const SpriteLoader::SpriteCollection &sprite, AllocatorProc *allocator);
442 template Sprite *Blitter_32bppOptimized::EncodeInternal<false>(const SpriteLoader::SpriteCollection &sprite, AllocatorProc *allocator);
443
444 Sprite *Blitter_32bppOptimized::Encode(const SpriteLoader::SpriteCollection &sprite, AllocatorProc *allocator)
445 {
446 return this->EncodeInternal<true>(sprite, allocator);
447 }
Sprite::height
uint16_t height
Height of the sprite.
Definition: spritecache.h:18
Sprite::x_offs
int16_t x_offs
Number of pixels to shift the sprite to the right.
Definition: spritecache.h:20
Blitter::BlitterParams::top
int top
The top offset in the 'dst' in pixels to start drawing.
Definition: base.hpp:43
BM_TRANSPARENT
@ BM_TRANSPARENT
Perform transparency darkening remapping.
Definition: base.hpp:20
Blitter::BlitterParams::skip_left
int skip_left
How much pixels of the source to skip on the left (based on zoom of dst)
Definition: base.hpp:36
BlitterMode
BlitterMode
The modes of blitting we can do.
Definition: base.hpp:17
Blitter::BlitterParams::width
int width
The width in pixels that needs to be drawn to dst.
Definition: base.hpp:38
Sprite::data
byte data[]
Sprite data.
Definition: spritecache.h:22
ZOOM_LVL_END
@ ZOOM_LVL_END
End for iteration.
Definition: zoom_type.h:28
Blitter_32bppOptimized::Encode
Sprite * Encode(const SpriteLoader::SpriteCollection &sprite, AllocatorProc *allocator) override
Convert a sprite from the loader to our own format.
Definition: 32bpp_optimized.cpp:444
GB
constexpr static debug_inline uint GB(const T x, const uint8_t s, const uint8_t n)
Fetch n bits from x, started at bit s.
Definition: bitmath_func.hpp:32
Blitter::BlitterParams::dst
void * dst
Destination buffer.
Definition: base.hpp:45
Blitter_32bppBase::ComposeColourPANoCheck
static Colour ComposeColourPANoCheck(Colour colour, uint a, Colour current)
Compose a colour based on Pixel value, alpha value, and the current pixel value.
Definition: 32bpp_base.hpp:73
ZoomLevel
ZoomLevel
All zoom levels we know.
Definition: zoom_type.h:19
Blitter::BlitterParams::pitch
int pitch
The pitch of the destination buffer.
Definition: base.hpp:46
_settings_client
ClientSettings _settings_client
The current settings for this game.
Definition: settings.cpp:54
SpriteLoader::Sprite::height
uint16_t height
Height of the sprite.
Definition: spriteloader.hpp:49
ZOOM_LVL_MAX
@ ZOOM_LVL_MAX
Maximum zoom level.
Definition: zoom_type.h:44
SpriteType::Font
@ Font
A sprite used for fonts.
GUISettings::zoom_max
ZoomLevel zoom_max
maximum zoom out level
Definition: settings_type.h:158
SpriteLoader::SpriteCollection
std::array< Sprite, ZOOM_LVL_END > SpriteCollection
Type defining a collection of sprites, one for each zoom level.
Definition: spriteloader.hpp:71
BM_NORMAL
@ BM_NORMAL
Perform the simple blitting.
Definition: base.hpp:18
SpriteLoader::Sprite::data
SpriteLoader::CommonPixel * data
The sprite itself.
Definition: spriteloader.hpp:55
Blitter::BlitterParams::sprite
const void * sprite
Pointer to the sprite how ever the encoder stored it.
Definition: base.hpp:33
32bpp_optimized.hpp
Blitter_32bppOptimized::SpriteData::data
byte data[]
Data, all zoomlevels.
Definition: 32bpp_optimized.hpp:21
free
void free(const void *ptr)
Version of the standard free that accepts const pointers.
Definition: stdafx.h:379
BM_COLOUR_REMAP
@ BM_COLOUR_REMAP
Perform a colour remapping.
Definition: base.hpp:19
SpriteLoader::CommonPixel
Definition of a common pixel in OpenTTD's realm.
Definition: spriteloader.hpp:34
Sprite::width
uint16_t width
Width of the sprite.
Definition: spritecache.h:19
SpriteLoader::CommonPixel::m
uint8_t m
Remap-channel.
Definition: spriteloader.hpp:39
BM_CRASH_REMAP
@ BM_CRASH_REMAP
Perform a crash remapping.
Definition: base.hpp:22
Blitter_32bppBase::LookupColourInPalette
static Colour LookupColourInPalette(uint index)
Look up the colour in the current palette.
Definition: 32bpp_base.hpp:37
BM_BLACK_REMAP
@ BM_BLACK_REMAP
Perform remapping to a completely blackened sprite.
Definition: base.hpp:23
SpriteLoader::CommonPixel::b
uint8_t b
Blue-channel.
Definition: spriteloader.hpp:37
Colour::data
uint32_t data
Conversion of the channel information to a 32 bit number.
Definition: gfx_type.h:160
Blitter_32bppOptimized::Draw
void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom) override
Draws a sprite to a (screen) buffer.
Definition: 32bpp_optimized.cpp:283
Colour
Structure to access the alpha, red, green, and blue channels from a 32 bit number.
Definition: gfx_type.h:159
GUISettings::zoom_min
ZoomLevel zoom_min
minimum zoom out level
Definition: settings_type.h:157
Blitter_32bppBase::ComposeColourRGBA
static Colour ComposeColourRGBA(uint r, uint g, uint b, uint a, Colour current)
Compose a colour based on RGBA values and the current pixel value.
Definition: 32bpp_base.hpp:62
Blitter_32bppBase::MakeDark
static uint8_t MakeDark(uint8_t r, uint8_t g, uint8_t b)
Make a colour dark grey, for specialized 32bpp remapping.
Definition: 32bpp_base.hpp:120
GetNearestColourIndex
uint8_t GetNearestColourIndex(uint8_t r, uint8_t g, uint8_t b)
Get nearest colour palette index from an RGB colour.
Definition: palette.cpp:129
SpriteLoader::Sprite::width
uint16_t width
Width of the sprite.
Definition: spriteloader.hpp:50
Blitter_32bppOptimized::SpriteData::offset
uint32_t offset[ZOOM_LVL_END][2]
Offsets (from .data) to streams for different zoom levels, and the normal and remap image information...
Definition: 32bpp_optimized.hpp:20
FBlitter_32bppOptimized
Factory for the optimised 32 bpp blitter (without palette animation).
Definition: 32bpp_optimized.hpp:37
Sprite::y_offs
int16_t y_offs
Number of pixels to shift the sprite downwards.
Definition: spritecache.h:21
Blitter::BlitterParams::left
int left
The left offset in the 'dst' in pixels to start drawing.
Definition: base.hpp:42
Blitter_32bppBase::ComposeColourRGBANoCheck
static Colour ComposeColourRGBANoCheck(uint r, uint g, uint b, uint a, Colour current)
Compose a colour based on RGBA values and the current pixel value.
Definition: 32bpp_base.hpp:45
SpriteLoader::Sprite
Structure for passing information from the sprite loader to the blitter.
Definition: spriteloader.hpp:48
Blitter_32bppBase::MakeTransparent
static Colour MakeTransparent(Colour colour, uint nom, uint denom=256)
Make a pixel looks like it is transparent.
Definition: 32bpp_base.hpp:104
SpriteLoader::CommonPixel::g
uint8_t g
Green-channel.
Definition: spriteloader.hpp:36
Blitter::BlitterParams
Parameters related to blitting.
Definition: base.hpp:32
AlignPtr
constexpr T * AlignPtr(T *x, uint n)
Return the smallest multiple of n equal or greater than x Applies to pointers only.
Definition: math_func.hpp:55
ZOOM_LVL_NORMAL
@ ZOOM_LVL_NORMAL
The normal zoom level.
Definition: zoom_type.h:22
Blitter::BlitterParams::height
int height
The height in pixels that needs to be drawn to dst.
Definition: base.hpp:39
Blitter_32bppOptimized::SpriteData
Data stored about a (single) sprite.
Definition: 32bpp_optimized.hpp:19
SpriteLoader::CommonPixel::r
uint8_t r
Red-channel.
Definition: spriteloader.hpp:35
Blitter::BlitterParams::skip_top
int skip_top
How much pixels of the source to skip on the top (based on zoom of dst)
Definition: base.hpp:37
Sprite
Data structure describing a sprite.
Definition: spritecache.h:17
Blitter::BlitterParams::remap
const byte * remap
XXX – Temporary storage for remap array.
Definition: base.hpp:34
SpriteLoader::CommonPixel::a
uint8_t a
Alpha-channel.
Definition: spriteloader.hpp:38
BM_TRANSPARENT_REMAP
@ BM_TRANSPARENT_REMAP
Perform transparency colour remapping.
Definition: base.hpp:21
Colour::a
uint8_t a
colour channels in LE order
Definition: gfx_type.h:167
ClientSettings::gui
GUISettings gui
settings related to the GUI
Definition: settings_type.h:636
iFBlitter_32bppOptimized
static FBlitter_32bppOptimized iFBlitter_32bppOptimized
Instantiation of the optimized 32bpp blitter factory.
Definition: 32bpp_optimized.cpp:19