dlls/d3dx9_36/util.c

   1 /*
   2  * Copyright (C) 2009 Tony Wasserka
   3  *
   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.
   8  *
   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.
  13  *
  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
  17  *
  18  */
  19
  20 #include "wine/debug.h"
  21 #include "d3dx9_36_private.h"
  22
  23 WINE_DEFAULT_DEBUG_CHANNEL(d3dx);
  24
  25 static void la_from_rgba(const struct vec4 *rgba, struct vec4 *la)
  26 {
  27     la->x = rgba->x * 0.2125f + rgba->y * 0.7154f + rgba->z * 0.0721f;
  28     la->w = rgba->w;
  29 }
  30
  31 static void la_to_rgba(const struct vec4 *la, struct vec4 *rgba)
  32 {
  33     rgba->x = la->x;
  34     rgba->y = la->x;
  35     rgba->z = la->x;
  36     rgba->w = la->w;
  37 }
  38
  39 /************************************************************
  40  * pixel format table providing info about number of bytes per pixel,
  41  * number of bits per channel and format type.
  42  *
  43  * Call get_format_info to request information about a specific format.
  44  */
  45 static const PixelFormatDesc formats[] =
  46 {
  47     /* format            bpc              shifts            bpp type            from_rgba     to_rgba */
  48     {D3DFMT_R8G8B8,      {0,  8,  8,  8}, { 0, 16,  8,  0}, 3,  FORMAT_ARGB,    NULL,         NULL      },
  49     {D3DFMT_A8R8G8B8,    {8,  8,  8,  8}, {24, 16,  8,  0}, 4,  FORMAT_ARGB,    NULL,         NULL      },
  50     {D3DFMT_X8R8G8B8,    {0,  8,  8,  8}, { 0, 16,  8,  0}, 4,  FORMAT_ARGB,    NULL,         NULL      },
  51     {D3DFMT_A8B8G8R8,    {8,  8,  8,  8}, {24,  0,  8, 16}, 4,  FORMAT_ARGB,    NULL,         NULL      },
  52     {D3DFMT_X8B8G8R8,    {0,  8,  8,  8}, { 0,  0,  8, 16}, 4,  FORMAT_ARGB,    NULL,         NULL      },
  53     {D3DFMT_R5G6B5,      {0,  5,  6,  5}, { 0, 11,  5,  0}, 2,  FORMAT_ARGB,    NULL,         NULL      },
  54     {D3DFMT_X1R5G5B5,    {0,  5,  5,  5}, { 0, 10,  5,  0}, 2,  FORMAT_ARGB,    NULL,         NULL      },
  55     {D3DFMT_A1R5G5B5,    {1,  5,  5,  5}, {15, 10,  5,  0}, 2,  FORMAT_ARGB,    NULL,         NULL      },
  56     {D3DFMT_R3G3B2,      {0,  3,  3,  2}, { 0,  5,  2,  0}, 1,  FORMAT_ARGB,    NULL,         NULL      },
  57     {D3DFMT_A8R3G3B2,    {8,  3,  3,  2}, { 8,  5,  2,  0}, 2,  FORMAT_ARGB,    NULL,         NULL      },
  58     {D3DFMT_A4R4G4B4,    {4,  4,  4,  4}, {12,  8,  4,  0}, 2,  FORMAT_ARGB,    NULL,         NULL      },
  59     {D3DFMT_X4R4G4B4,    {0,  4,  4,  4}, { 0,  8,  4,  0}, 2,  FORMAT_ARGB,    NULL,         NULL      },
  60     {D3DFMT_A2R10G10B10, {2, 10, 10, 10}, {30, 20, 10,  0}, 4,  FORMAT_ARGB,    NULL,         NULL      },
  61     {D3DFMT_A2B10G10R10, {2, 10, 10, 10}, {30,  0, 10, 20}, 4,  FORMAT_ARGB,    NULL,         NULL      },
  62     {D3DFMT_G16R16,      {0, 16, 16,  0}, { 0,  0, 16,  0}, 4,  FORMAT_ARGB,    NULL,         NULL      },
  63     {D3DFMT_A8,          {8,  0,  0,  0}, { 0,  0,  0,  0}, 1,  FORMAT_ARGB,    NULL,         NULL      },
  64     {D3DFMT_A8L8,        {8,  8,  0,  0}, { 8,  0,  0,  0}, 2,  FORMAT_ARGB,    la_from_rgba, la_to_rgba},
  65     /* marks last element */
  66     {D3DFMT_UNKNOWN,     {0,  0,  0,  0}, { 0,  0,  0,  0}, 0,  FORMAT_UNKNOWN, NULL,         NULL      },
  67 };
  68
  69
  70 /************************************************************
  71  * map_view_of_file
  72  *
  73  * Loads a file into buffer and stores the number of read bytes in length.
  74  *
  75  * PARAMS
  76  *   filename [I] name of the file to be loaded
  77  *   buffer   [O] pointer to destination buffer
  78  *   length   [O] size of the obtained data
  79  *
  80  * RETURNS
  81  *   Success: D3D_OK
  82  *   Failure:
  83  *     see error codes for CreateFileW, GetFileSize, CreateFileMapping and MapViewOfFile
  84  *
  85  * NOTES
  86  *   The caller must UnmapViewOfFile when it doesn't need the data anymore
  87  *
  88  */
  89 HRESULT map_view_of_file(LPCWSTR filename, LPVOID *buffer, DWORD *length)
  90 {
  91     HANDLE hfile, hmapping = NULL;
  92
  93     hfile = CreateFileW(filename, GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, 0, 0);
  94     if(hfile == INVALID_HANDLE_VALUE) goto error;
  95
  96     *length = GetFileSize(hfile, NULL);
  97     if(*length == INVALID_FILE_SIZE) goto error;
  98
  99     hmapping = CreateFileMappingW(hfile, NULL, PAGE_READONLY, 0, 0, NULL);
 100     if(!hmapping) goto error;
 101
 102     *buffer = MapViewOfFile(hmapping, FILE_MAP_READ, 0, 0, 0);
 103     if(*buffer == NULL) goto error;
 104
 105     CloseHandle(hmapping);
 106     CloseHandle(hfile);
 107
 108     return S_OK;
 109
 110 error:
 111     CloseHandle(hmapping);
 112     CloseHandle(hfile);
 113     return HRESULT_FROM_WIN32(GetLastError());
 114 }
 115
 116 /************************************************************
 117  * load_resource_into_memory
 118  *
 119  * Loads a resource into buffer and stores the number of
 120  * read bytes in length.
 121  *
 122  * PARAMS
 123  *   module  [I] handle to the module
 124  *   resinfo [I] handle to the resource's information block
 125  *   buffer  [O] pointer to destination buffer
 126  *   length  [O] size of the obtained data
 127  *
 128  * RETURNS
 129  *   Success: D3D_OK
 130  *   Failure:
 131  *     See error codes for SizeofResource, LoadResource and LockResource
 132  *
 133  * NOTES
 134  *   The memory doesn't need to be freed by the caller manually
 135  *
 136  */
 137 HRESULT load_resource_into_memory(HMODULE module, HRSRC resinfo, LPVOID *buffer, DWORD *length)
 138 {
 139     HGLOBAL resource;
 140
 141     *length = SizeofResource(module, resinfo);
 142     if(*length == 0) return HRESULT_FROM_WIN32(GetLastError());
 143
 144     resource = LoadResource(module, resinfo);
 145     if( !resource ) return HRESULT_FROM_WIN32(GetLastError());
 146
 147     *buffer = LockResource(resource);
 148     if(*buffer == NULL) return HRESULT_FROM_WIN32(GetLastError());
 149
 150     return S_OK;
 151 }
 152
 153
 154 /************************************************************
 155  * get_format_info
 156  *
 157  * Returns information about the specified format.
 158  * If the format is unsupported, it's filled with the D3DFMT_UNKNOWN desc.
 159  *
 160  * PARAMS
 161  *   format [I] format whose description is queried
 162  *   desc   [O] pointer to a StaticPixelFormatDesc structure
 163  *
 164  */
 165 const PixelFormatDesc *get_format_info(D3DFORMAT format)
 166 {
 167     unsigned int i = 0;
 168     while(formats[i].format != format && formats[i].format != D3DFMT_UNKNOWN) i++;
 169     if(formats[i].format == D3DFMT_UNKNOWN)
 170         FIXME("Unknown format %#x\n", format);
 171     return &formats[i];
 172 }
 173
 174 const PixelFormatDesc *get_format_info_idx(int idx)
 175 {
 176     if(idx >= sizeof(formats) / sizeof(formats[0]))
 177         return NULL;
 178     if(formats[idx].format == D3DFMT_UNKNOWN)
 179         return NULL;
 180     return &formats[idx];
 181 }
 182
 183 #define WINE_D3DX_TO_STR(x) case x: return #x
 184
 185 const char *debug_d3dxparameter_class(D3DXPARAMETER_CLASS c)
 186 {
 187     switch (c)
 188     {
 189         WINE_D3DX_TO_STR(D3DXPC_SCALAR);
 190         WINE_D3DX_TO_STR(D3DXPC_VECTOR);
 191         WINE_D3DX_TO_STR(D3DXPC_MATRIX_ROWS);
 192         WINE_D3DX_TO_STR(D3DXPC_MATRIX_COLUMNS);
 193         WINE_D3DX_TO_STR(D3DXPC_OBJECT);
 194         WINE_D3DX_TO_STR(D3DXPC_STRUCT);
 195         default:
 196             FIXME("Unrecognized D3DXPARAMETER_CLASS %#x.\n", c);
 197             return "unrecognized";
 198     }
 199 }
 200
 201 const char *debug_d3dxparameter_type(D3DXPARAMETER_TYPE t)
 202 {
 203     switch (t)
 204     {
 205         WINE_D3DX_TO_STR(D3DXPT_VOID);
 206         WINE_D3DX_TO_STR(D3DXPT_BOOL);
 207         WINE_D3DX_TO_STR(D3DXPT_INT);
 208         WINE_D3DX_TO_STR(D3DXPT_FLOAT);
 209         WINE_D3DX_TO_STR(D3DXPT_STRING);
 210         WINE_D3DX_TO_STR(D3DXPT_TEXTURE);
 211         WINE_D3DX_TO_STR(D3DXPT_TEXTURE1D);
 212         WINE_D3DX_TO_STR(D3DXPT_TEXTURE2D);
 213         WINE_D3DX_TO_STR(D3DXPT_TEXTURE3D);
 214         WINE_D3DX_TO_STR(D3DXPT_TEXTURECUBE);
 215         WINE_D3DX_TO_STR(D3DXPT_SAMPLER);
 216         WINE_D3DX_TO_STR(D3DXPT_SAMPLER1D);
 217         WINE_D3DX_TO_STR(D3DXPT_SAMPLER2D);
 218         WINE_D3DX_TO_STR(D3DXPT_SAMPLER3D);
 219         WINE_D3DX_TO_STR(D3DXPT_SAMPLERCUBE);
 220         WINE_D3DX_TO_STR(D3DXPT_PIXELSHADER);
 221         WINE_D3DX_TO_STR(D3DXPT_VERTEXSHADER);
 222         WINE_D3DX_TO_STR(D3DXPT_PIXELFRAGMENT);
 223         WINE_D3DX_TO_STR(D3DXPT_VERTEXFRAGMENT);
 224         WINE_D3DX_TO_STR(D3DXPT_UNSUPPORTED);
 225         default:
 226            FIXME("Unrecognized D3DXPARAMETER_TYP %#x.\n", t);
 227             return "unrecognized";
 228     }
 229 }
 230
 231 #undef WINE_D3DX_TO_STR