wininet: Support the Cache-Control max-age directive for setting url cache entry...
[wine/testsucceed.git] / dlls / d3dx9_36 / util.c
blobdc8e820fe61e7f0fcd17733c5633a5215ee67ff5
1 /*
2 * Copyright (C) 2009 Tony Wasserka
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 #include "wine/debug.h"
21 #include "d3dx9_36_private.h"
24 /************************************************************
25 * pixel format table providing info about number of bytes per pixel,
26 * number of bits per channel and format type.
28 * Call get_format_info to request information about a specific format.
30 static const PixelFormatDesc formats[] =
32 /* format bits per channel shifts per channel bpp type */
33 { D3DFMT_R8G8B8, { 0, 8, 8, 8 }, { 0, 16, 8, 0 }, 3, FORMAT_ARGB },
34 { D3DFMT_A8R8G8B8, { 8, 8, 8, 8 }, { 24, 16, 8, 0 }, 4, FORMAT_ARGB },
35 { D3DFMT_X8R8G8B8, { 0, 8, 8, 8 }, { 0, 16, 8, 0 }, 4, FORMAT_ARGB },
36 { D3DFMT_A8B8G8R8, { 8, 8, 8, 8 }, { 24, 0, 8, 16 }, 4, FORMAT_ARGB },
37 { D3DFMT_X8B8G8R8, { 0, 8, 8, 8 }, { 0, 0, 8, 16 }, 4, FORMAT_ARGB },
38 { D3DFMT_R5G6B5, { 0, 5, 6, 5 }, { 0, 11, 5, 0 }, 2, FORMAT_ARGB },
39 { D3DFMT_X1R5G5B5, { 0, 5, 5, 5 }, { 0, 10, 5, 0 }, 2, FORMAT_ARGB },
40 { D3DFMT_A1R5G5B5, { 1, 5, 5, 5 }, { 15, 10, 5, 0 }, 2, FORMAT_ARGB },
41 { D3DFMT_R3G3B2, { 0, 3, 3, 2 }, { 0, 5, 2, 0 }, 1, FORMAT_ARGB },
42 { D3DFMT_A8R3G3B2, { 8, 3, 3, 2 }, { 8, 5, 2, 0 }, 2, FORMAT_ARGB },
43 { D3DFMT_A4R4G4B4, { 4, 4, 4, 4 }, { 12, 8, 4, 0 }, 2, FORMAT_ARGB },
44 { D3DFMT_X4R4G4B4, { 0, 4, 4, 4 }, { 0, 8, 4, 0 }, 2, FORMAT_ARGB },
45 { D3DFMT_A2R10G10B10, { 2, 10, 10, 10 }, { 30, 20, 10, 0 }, 4, FORMAT_ARGB },
46 { D3DFMT_A2B10G10R10, { 2, 10, 10, 10 }, { 30, 0, 10, 20 }, 4, FORMAT_ARGB },
47 { D3DFMT_G16R16, { 0, 16, 16, 0 }, { 0, 0, 16, 0 }, 4, FORMAT_ARGB },
48 { D3DFMT_A8, { 8, 0, 0, 0 }, { 0, 0, 0, 0 }, 1, FORMAT_ARGB },
50 { D3DFMT_UNKNOWN, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, 0, FORMAT_UNKNOWN }, /* marks last element */
54 /************************************************************
55 * map_view_of_file
57 * Loads a file into buffer and stores the number of read bytes in length.
59 * PARAMS
60 * filename [I] name of the file to be loaded
61 * buffer [O] pointer to destination buffer
62 * length [O] size of the obtained data
64 * RETURNS
65 * Success: D3D_OK
66 * Failure:
67 * see error codes for CreateFileW, GetFileSize, CreateFileMapping and MapViewOfFile
69 * NOTES
70 * The caller must UnmapViewOfFile when it doesn't need the data anymore
73 HRESULT map_view_of_file(LPCWSTR filename, LPVOID *buffer, DWORD *length)
75 HANDLE hfile, hmapping = NULL;
77 hfile = CreateFileW(filename, GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, 0, 0);
78 if(hfile == INVALID_HANDLE_VALUE) goto error;
80 *length = GetFileSize(hfile, NULL);
81 if(*length == INVALID_FILE_SIZE) goto error;
83 hmapping = CreateFileMappingW(hfile, NULL, PAGE_READONLY, 0, 0, NULL);
84 if(!hmapping) goto error;
86 *buffer = MapViewOfFile(hmapping, FILE_MAP_READ, 0, 0, 0);
87 if(*buffer == NULL) goto error;
89 CloseHandle(hmapping);
90 CloseHandle(hfile);
92 return S_OK;
94 error:
95 CloseHandle(hmapping);
96 CloseHandle(hfile);
97 return HRESULT_FROM_WIN32(GetLastError());
100 /************************************************************
101 * load_resource_into_memory
103 * Loads a resource into buffer and stores the number of
104 * read bytes in length.
106 * PARAMS
107 * module [I] handle to the module
108 * resinfo [I] handle to the resource's information block
109 * buffer [O] pointer to destination buffer
110 * length [O] size of the obtained data
112 * RETURNS
113 * Success: D3D_OK
114 * Failure:
115 * See error codes for SizeofResource, LoadResource and LockResource
117 * NOTES
118 * The memory doesn't need to be freed by the caller manually
121 HRESULT load_resource_into_memory(HMODULE module, HRSRC resinfo, LPVOID *buffer, DWORD *length)
123 HGLOBAL resource;
125 *length = SizeofResource(module, resinfo);
126 if(*length == 0) return HRESULT_FROM_WIN32(GetLastError());
128 resource = LoadResource(module, resinfo);
129 if( !resource ) return HRESULT_FROM_WIN32(GetLastError());
131 *buffer = LockResource(resource);
132 if(*buffer == NULL) return HRESULT_FROM_WIN32(GetLastError());
134 return S_OK;
138 /************************************************************
139 * get_format_info
141 * Returns information about the specified format.
142 * If the format is unsupported, it's filled with the D3DFMT_UNKNOWN desc.
144 * PARAMS
145 * format [I] format whose description is queried
146 * desc [O] pointer to a StaticPixelFormatDesc structure
149 const PixelFormatDesc *get_format_info(D3DFORMAT format)
151 unsigned int i = 0;
152 while(formats[i].format != format && formats[i].format != D3DFMT_UNKNOWN) i++;
153 return &formats[i];
156 const PixelFormatDesc *get_format_info_idx(int idx)
158 if(idx >= sizeof(formats) / sizeof(formats[0]))
159 return NULL;
160 if(formats[idx].format == D3DFMT_UNKNOWN)
161 return NULL;
162 return &formats[idx];