@TODO: Finish this, as it is incomplete.
| 186 | |
| 187 | // @TODO: Finish this, as it is incomplete. |
| 188 | ILboolean WriteHeader(ILimage *Image, ILenum DXTCFormat, ILuint CubeFlags) |
| 189 | { |
| 190 | ILuint i, FourCC, Flags1 = 0, Flags2 = 0, ddsCaps1 = 0, |
| 191 | LinearSize, BlockSize, ddsCaps2 = 0; |
| 192 | |
| 193 | Flags1 |= DDS_LINEARSIZE | DDS_MIPMAPCOUNT |
| 194 | | DDS_WIDTH | DDS_HEIGHT | DDS_CAPS | DDS_PIXELFORMAT; |
| 195 | Flags2 |= DDS_FOURCC; |
| 196 | |
| 197 | if (Image->Depth > 1) |
| 198 | Flags1 |= DDS_DEPTH; |
| 199 | |
| 200 | // @TODO: Fix the pre-multiplied alpha problem. |
| 201 | if (DXTCFormat == IL_DXT2) |
| 202 | DXTCFormat = IL_DXT3; |
| 203 | else if (DXTCFormat == IL_DXT4) |
| 204 | DXTCFormat = IL_DXT5; |
| 205 | |
| 206 | switch (DXTCFormat) |
| 207 | { |
| 208 | case IL_DXT1: |
| 209 | case IL_DXT1A: |
| 210 | FourCC = IL_MAKEFOURCC('D','X','T','1'); |
| 211 | break; |
| 212 | case IL_DXT2: |
| 213 | FourCC = IL_MAKEFOURCC('D','X','T','2'); |
| 214 | break; |
| 215 | case IL_DXT3: |
| 216 | FourCC = IL_MAKEFOURCC('D','X','T','3'); |
| 217 | break; |
| 218 | case IL_DXT4: |
| 219 | FourCC = IL_MAKEFOURCC('D','X','T','4'); |
| 220 | break; |
| 221 | case IL_DXT5: |
| 222 | FourCC = IL_MAKEFOURCC('D','X','T','5'); |
| 223 | break; |
| 224 | case IL_ATI1N: |
| 225 | FourCC = IL_MAKEFOURCC('A', 'T', 'I', '1'); |
| 226 | break; |
| 227 | case IL_3DC: |
| 228 | FourCC = IL_MAKEFOURCC('A','T','I','2'); |
| 229 | break; |
| 230 | case IL_RXGB: |
| 231 | FourCC = IL_MAKEFOURCC('R','X','G','B'); |
| 232 | break; |
| 233 | default: |
| 234 | // Error! |
| 235 | ilSetError(IL_INTERNAL_ERROR); // Should never happen, though. |
| 236 | return IL_FALSE; |
| 237 | } |
| 238 | |
| 239 | iwrite("DDS ", 1, 4); |
| 240 | SaveLittleUInt(124); // Size1 |
| 241 | SaveLittleUInt(Flags1); // Flags1 |
| 242 | SaveLittleUInt(Image->Height); |
| 243 | SaveLittleUInt(Image->Width); |
| 244 | |
| 245 | if (DXTCFormat == IL_DXT1 || DXTCFormat == IL_DXT1A || DXTCFormat == IL_ATI1N) { |
no test coverage detected