Oolite 1.91.0.7644-241112-7f5034b
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OOPixMapTextureLoader.m
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1/*
2
3OOPixMapTextureLoader.m
4
5
6Copyright (C) 2010-2013 Jens Ayton
7
8Permission is hereby granted, free of charge, to any person obtaining a copy
9of this software and associated documentation files (the "Software"), to deal
10in the Software without restriction, including without limitation the rights
11to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12copies of the Software, and to permit persons to whom the Software is
13furnished to do so, subject to the following conditions:
14
15The above copyright notice and this permission notice shall be included in all
16copies or substantial portions of the Software.
17
18THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24SOFTWARE.
25
26*/
27
29#import "OOTextureScaling.h"
30
31
32@implementation OOPixMapTextureLoader
33
34- (id) initWithPixMap:(OOPixMap)pixMap textureOptions:(uint32_t)options freeWhenDone:(BOOL)freeWhenDone
35{
36 if ((self = [super initWithPath:[NSString stringWithFormat:@"OOPixMap@%p", self] options:options]))
37 {
38 if (freeWhenDone) _pixMap = pixMap;
40
42
43 if (!OOIsValidPixMap(_pixMap)) DESTROY(self);
44 }
45
46 return self;
47}
48
49
50- (void) dealloc
51{
53
54 [super dealloc];
55}
56
57
58- (void) loadTexture
59{
60 // Generate mip maps if needed.
62 {
63 size_t size = OOMinimumPixMapBufferSize(_pixMap) * 4 / 3;
64 BOOL generateMipMaps = OOExpandPixMap(&_pixMap, size);
65 if (generateMipMaps)
66 {
68 }
69 else
70 {
71 _texOptions = (_texOptions & ~kOOTextureMinFilterMask) | kOOTextureMinFilterMipMap;
72 }
73 }
74
75 // Set up output ivars as per OOTextureLoader contract.
81
82 // Explicitly do not free pixels - ownership passes to texture.
83 _pixMap.pixels = NULL;
84}
85
86
87- (uint32_t) textureOptions
88{
89 return _texOptions;
90}
91
92@end
#define DESTROY(x)
Definition OOCocoa.h:77
void OOFreePixMap(OOPixMap *ioPixMap)
Definition OOPixMap.m:86
OOINLINE size_t OOMinimumPixMapBufferSize(OOPixMap pixMap)
Definition OOPixMap.h:62
BOOL OOIsValidPixMap(OOPixMap pixMap)
Definition OOPixMap.m:42
BOOL OOExpandPixMap(OOPixMap *ioPixMap, size_t desiredSize)
Definition OOPixMap.m:130
OOPixMap OODuplicatePixMap(OOPixMap srcPixMap, size_t desiredSize)
Definition OOPixMap.m:95
BOOL OOGenerateMipMaps(void *textureBytes, OOPixMapDimension width, OOPixMapDimension height, OOPixMapFormat format)
OOTextureFlags OOApplyTextureOptionDefaults(OOTextureFlags options)
Definition OOTexture.m:855
@ kOOTextureMinFilterMask
Definition OOTexture.h:72
@ kOOTextureMinFilterMipMap
Definition OOTexture.h:48
OOTextureDataFormat _format
voidpf void uLong size
Definition ioapi.h:134
OOPixMapDimension height
Definition OOPixMap.h:50
size_t rowBytes
Definition OOPixMap.h:52
void * pixels
Definition OOPixMap.h:49
OOPixMapDimension width
Definition OOPixMap.h:50
OOPixMapFormat format
Definition OOPixMap.h:51