1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
#include "drape/static_texture.hpp"
#include "indexer/map_style_reader.hpp"
#include "platform/platform.hpp"
#include "coding/parse_xml.hpp"
#include "coding/reader.hpp"
#include "base/string_utils.hpp"
#ifdef DEBUG
#include "3party/glm/glm/gtx/bit.hpp"
#endif
#include "3party/stb_image/stb_image.h"
#include <limits>
#include <vector>
namespace dp
{
std::string const StaticTexture::kDefaultResource = "default";
namespace
{
using TLoadingCompletion = function<void(unsigned char *, uint32_t, uint32_t)>;
using TLoadingFailure = function<void(std::string const &)>;
bool LoadData(std::string const & textureName, std::string const & skinPathName,
uint8_t bytesPerPixel, TLoadingCompletion const & completionHandler,
TLoadingFailure const & failureHandler)
{
ASSERT(completionHandler != nullptr, ());
ASSERT(failureHandler != nullptr, ());
std::vector<unsigned char> rawData;
try
{
std::string const fullName = textureName + ".png";
ReaderPtr<Reader> reader = skinPathName == StaticTexture::kDefaultResource ?
GetStyleReader().GetDefaultResourceReader(fullName) :
GetStyleReader().GetResourceReader(fullName, skinPathName);
CHECK_LESS(reader.Size(), static_cast<uint64_t>(std::numeric_limits<size_t>::max()), ());
size_t const size = static_cast<size_t>(reader.Size());
rawData.resize(size);
reader.Read(0, &rawData[0], size);
}
catch (RootException & e)
{
failureHandler(e.what());
return false;
}
int w, h, bpp;
unsigned char * data =
stbi_load_from_memory(&rawData[0], static_cast<int>(rawData.size()), &w, &h, &bpp, 0);
uint8_t constexpr kSupportedBPP = 4;
CHECK_EQUAL(bpp, kSupportedBPP, ("Incorrect texture format"));
ASSERT(glm::isPowerOfTwo(w), (w));
ASSERT(glm::isPowerOfTwo(h), (h));
if (bytesPerPixel != bpp)
{
std::vector<unsigned char> convertedData(static_cast<size_t>(w * h * bytesPerPixel));
uint32_t const pixelsCount = static_cast<uint32_t>(w * h);
for (uint32_t i = 0; i < pixelsCount; i++)
{
unsigned char const * p = data + i * bpp;
for (uint8_t b = 0; b < bytesPerPixel; b++)
convertedData[i * bytesPerPixel + b] = p[b];
}
stbi_image_free(data);
completionHandler(convertedData.data(), static_cast<uint32_t>(w), static_cast<uint32_t>(h));
return true;
}
completionHandler(data, static_cast<uint32_t>(w), static_cast<uint32_t>(h));
stbi_image_free(data);
return true;
}
class StaticResourceInfo : public Texture::ResourceInfo
{
public:
StaticResourceInfo() : Texture::ResourceInfo(m2::RectF(0.0f, 0.0f, 1.0f, 1.0f)) {}
virtual ~StaticResourceInfo() {}
Texture::ResourceType GetType() const override { return Texture::Static; }
};
} // namespace
StaticTexture::StaticTexture(std::string const & textureName, std::string const & skinPathName,
dp::TextureFormat format, ref_ptr<HWTextureAllocator> allocator)
: m_textureName(textureName)
, m_skinPathName(skinPathName)
, m_format(format)
, m_info(make_unique_dp<StaticResourceInfo>())
{
m_isLoadingCorrect = Load(allocator);
}
bool StaticTexture::Load(ref_ptr<HWTextureAllocator> allocator)
{
auto completionHandler = [this, &allocator](unsigned char * data, uint32_t width,
uint32_t height)
{
Texture::Params p;
p.m_allocator = allocator;
p.m_format = m_format;
p.m_width = width;
p.m_height = height;
p.m_wrapSMode = gl_const::GLRepeate;
p.m_wrapTMode = gl_const::GLRepeate;
Create(p, make_ref(data));
};
auto failureHandler = [this](std::string const & reason)
{
LOG(LERROR, (reason));
Fail();
};
uint8_t const bytesPerPixel = GetBytesPerPixel(m_format);
return LoadData(m_textureName, m_skinPathName, bytesPerPixel,
completionHandler, failureHandler);
}
void StaticTexture::Invalidate(ref_ptr<HWTextureAllocator> allocator)
{
Destroy();
m_isLoadingCorrect = Load(allocator);
}
ref_ptr<Texture::ResourceInfo> StaticTexture::FindResource(Texture::Key const & key,
bool & newResource)
{
newResource = false;
if (key.GetType() != Texture::Static)
return nullptr;
return make_ref(m_info);
}
void StaticTexture::Fail()
{
int32_t alphaTexture = 0;
Texture::Params p;
p.m_allocator = GetDefaultAllocator();
p.m_format = dp::RGBA8;
p.m_width = 1;
p.m_height = 1;
Create(p, make_ref(&alphaTexture));
}
} // namespace dp
|
