UDocumentation UE5.7 10.02.2026 (Source)
API documentation for Unreal Engine 5.7
DXGIUtilities.h
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1// Copyright Epic Games, Inc. All Rights Reserved.
2
3#pragma once
4
5#include "HAL/Platform.h"
6
7#if PLATFORM_MICROSOFT
8
9#ifndef RHICORE_PLATFORM_DXGI_H
10 #error "Platform needs to define RHICORE_PLATFORM_DXGI_H"
11#endif
12
13#include "PixelFormat.h"
14#include "RHIDefinitions.h"
15#include "Misc/AssertionMacros.h"
16
17#include "Microsoft/AllowMicrosoftPlatformTypes.h"
18THIRD_PARTY_INCLUDES_START
19#include RHICORE_PLATFORM_DXGI_H
20THIRD_PARTY_INCLUDES_END
21#include "Microsoft/HideMicrosoftPlatformTypes.h"
22
23struct FD3DMemoryStats;
24
25namespace UE::DXGIUtilities
26{
27 RHICORE_API const TCHAR* GetFormatString(DXGI_FORMAT Format);
28 RHICORE_API HRESULT GetD3DMemoryStats(IDXGIAdapter* Adapter, FD3DMemoryStats& OutStats);
29
30 inline DXGI_FORMAT FindSharedResourceFormat(DXGI_FORMAT InFormat, bool bSRGB)
31 {
32 if (bSRGB)
33 {
34 switch (InFormat)
35 {
36 case DXGI_FORMAT_B8G8R8X8_TYPELESS: return DXGI_FORMAT_B8G8R8X8_UNORM_SRGB;
37 case DXGI_FORMAT_B8G8R8A8_TYPELESS: return DXGI_FORMAT_B8G8R8A8_UNORM_SRGB;
38 case DXGI_FORMAT_R8G8B8A8_TYPELESS: return DXGI_FORMAT_R8G8B8A8_UNORM_SRGB;
39 case DXGI_FORMAT_BC1_TYPELESS: return DXGI_FORMAT_BC1_UNORM_SRGB;
40 case DXGI_FORMAT_BC2_TYPELESS: return DXGI_FORMAT_BC2_UNORM_SRGB;
41 case DXGI_FORMAT_BC3_TYPELESS: return DXGI_FORMAT_BC3_UNORM_SRGB;
42 case DXGI_FORMAT_BC7_TYPELESS: return DXGI_FORMAT_BC7_UNORM_SRGB;
43 };
44 }
45 else
46 {
47 switch (InFormat)
48 {
49 case DXGI_FORMAT_B8G8R8X8_TYPELESS: return DXGI_FORMAT_B8G8R8X8_UNORM;
50 case DXGI_FORMAT_B8G8R8A8_TYPELESS: return DXGI_FORMAT_B8G8R8A8_UNORM;
51 case DXGI_FORMAT_R8G8B8A8_TYPELESS: return DXGI_FORMAT_R8G8B8A8_UNORM;
52 case DXGI_FORMAT_BC1_TYPELESS: return DXGI_FORMAT_BC1_UNORM;
53 case DXGI_FORMAT_BC2_TYPELESS: return DXGI_FORMAT_BC2_UNORM;
54 case DXGI_FORMAT_BC3_TYPELESS: return DXGI_FORMAT_BC3_UNORM;
55 case DXGI_FORMAT_BC7_TYPELESS: return DXGI_FORMAT_BC7_UNORM;
56 };
57 }
58
59 switch (InFormat)
60 {
61 case DXGI_FORMAT_R32G32B32A32_TYPELESS: return DXGI_FORMAT_R32G32B32A32_UINT;
62 case DXGI_FORMAT_R32G32B32_TYPELESS: return DXGI_FORMAT_R32G32B32_UINT;
63 case DXGI_FORMAT_R16G16B16A16_TYPELESS: return DXGI_FORMAT_R16G16B16A16_UNORM;
64 case DXGI_FORMAT_R32G32_TYPELESS: return DXGI_FORMAT_R32G32_UINT;
65 case DXGI_FORMAT_R10G10B10A2_TYPELESS: return DXGI_FORMAT_R10G10B10A2_UNORM;
66 case DXGI_FORMAT_R16G16_TYPELESS: return DXGI_FORMAT_R16G16_UNORM;
67 case DXGI_FORMAT_R8G8_TYPELESS: return DXGI_FORMAT_R8G8_UNORM;
68 case DXGI_FORMAT_R8_TYPELESS: return DXGI_FORMAT_R8_UNORM;
69
70 case DXGI_FORMAT_BC4_TYPELESS: return DXGI_FORMAT_BC4_UNORM;
71 case DXGI_FORMAT_BC5_TYPELESS: return DXGI_FORMAT_BC5_UNORM;
72 case DXGI_FORMAT_R24G8_TYPELESS: return DXGI_FORMAT_R24_UNORM_X8_TYPELESS;
73 case DXGI_FORMAT_R32_TYPELESS: return DXGI_FORMAT_R32_FLOAT;
74 case DXGI_FORMAT_R16_TYPELESS: return DXGI_FORMAT_R16_UNORM;
75
76 case DXGI_FORMAT_R32G8X24_TYPELESS: return DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS;
77 }
78
79 return InFormat;
80 }
81
83 inline DXGI_FORMAT FindShaderResourceFormat(DXGI_FORMAT InFormat, bool bSRGB)
84 {
85 if (bSRGB)
86 {
87 switch (InFormat)
88 {
89 case DXGI_FORMAT_B8G8R8A8_TYPELESS: return DXGI_FORMAT_B8G8R8A8_UNORM_SRGB;
90 case DXGI_FORMAT_R8G8B8A8_TYPELESS: return DXGI_FORMAT_R8G8B8A8_UNORM_SRGB;
91 case DXGI_FORMAT_BC1_TYPELESS: return DXGI_FORMAT_BC1_UNORM_SRGB;
92 case DXGI_FORMAT_BC2_TYPELESS: return DXGI_FORMAT_BC2_UNORM_SRGB;
93 case DXGI_FORMAT_BC3_TYPELESS: return DXGI_FORMAT_BC3_UNORM_SRGB;
94 case DXGI_FORMAT_BC7_TYPELESS: return DXGI_FORMAT_BC7_UNORM_SRGB;
95 };
96 }
97 else
98 {
99 switch (InFormat)
100 {
101 case DXGI_FORMAT_B8G8R8A8_TYPELESS: return DXGI_FORMAT_B8G8R8A8_UNORM;
102 case DXGI_FORMAT_R8G8B8A8_TYPELESS: return DXGI_FORMAT_R8G8B8A8_UNORM;
103 case DXGI_FORMAT_BC1_TYPELESS: return DXGI_FORMAT_BC1_UNORM;
104 case DXGI_FORMAT_BC2_TYPELESS: return DXGI_FORMAT_BC2_UNORM;
105 case DXGI_FORMAT_BC3_TYPELESS: return DXGI_FORMAT_BC3_UNORM;
106 case DXGI_FORMAT_BC7_TYPELESS: return DXGI_FORMAT_BC7_UNORM;
107 };
108 }
109 switch (InFormat)
110 {
111 case DXGI_FORMAT_R24G8_TYPELESS: return DXGI_FORMAT_R24_UNORM_X8_TYPELESS;
112 case DXGI_FORMAT_R32_TYPELESS: return DXGI_FORMAT_R32_FLOAT;
113 case DXGI_FORMAT_R16_TYPELESS: return DXGI_FORMAT_R16_UNORM;
114 case DXGI_FORMAT_R32G8X24_TYPELESS: return DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS;
115 }
116 return InFormat;
117 }
118
119 inline DXGI_FORMAT FindDepthStencilResourceFormat(DXGI_FORMAT InFormat)
120 {
121 switch (InFormat)
122 {
123 case DXGI_FORMAT_R32_FLOAT: return DXGI_FORMAT_R32_TYPELESS;
124 case DXGI_FORMAT_R16_FLOAT: return DXGI_FORMAT_R16_TYPELESS;
125 }
126
127 return InFormat;
128 }
129
130 inline DXGI_FORMAT GetPlatformTextureResourceFormat(DXGI_FORMAT InFormat, ETextureCreateFlags InFlags)
131 {
132 // Find valid shared texture format
133 if (EnumHasAnyFlags(InFlags, ETextureCreateFlags::Shared))
134 {
135 return FindSharedResourceFormat(InFormat, EnumHasAnyFlags(InFlags, ETextureCreateFlags::SRGB));
136 }
137 if (EnumHasAnyFlags(InFlags, ETextureCreateFlags::DepthStencilTargetable))
138 {
139 return FindDepthStencilResourceFormat(InFormat);
140 }
141
142 return InFormat;
143 }
144
145 inline DXGI_FORMAT GetPlatformTextureResourceFormat(EPixelFormat InPixelFormat, ETextureCreateFlags InFlags)
146 {
147 return GetPlatformTextureResourceFormat((DXGI_FORMAT)GPixelFormats[InPixelFormat].PlatformFormat, InFlags);
148 }
149
151 inline DXGI_FORMAT FindUnorderedAccessFormat(DXGI_FORMAT InFormat)
152 {
153 switch (InFormat)
154 {
155 case DXGI_FORMAT_B8G8R8A8_TYPELESS: return DXGI_FORMAT_B8G8R8A8_UNORM;
156 case DXGI_FORMAT_R8G8B8A8_TYPELESS: return DXGI_FORMAT_R8G8B8A8_UNORM;
157 case DXGI_FORMAT_R32G8X24_TYPELESS: return DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS;
158 }
159 return InFormat;
160 }
161
163 inline DXGI_FORMAT FindDepthStencilFormat(DXGI_FORMAT InFormat)
164 {
165 switch (InFormat)
166 {
167 case DXGI_FORMAT_R24G8_TYPELESS: return DXGI_FORMAT_D24_UNORM_S8_UINT;
168 case DXGI_FORMAT_R32G8X24_TYPELESS: return DXGI_FORMAT_D32_FLOAT_S8X24_UINT;
169 case DXGI_FORMAT_R32_TYPELESS: return DXGI_FORMAT_D32_FLOAT;
170 case DXGI_FORMAT_R16_TYPELESS: return DXGI_FORMAT_D16_UNORM;
171 };
172 return InFormat;
173 }
174
176 inline DXGI_FORMAT FindDepthStencilParentDXGIFormat(DXGI_FORMAT InFormat)
177 {
178 switch (InFormat)
179 {
180 case DXGI_FORMAT_D24_UNORM_S8_UINT: return DXGI_FORMAT_R24G8_TYPELESS;
181 case DXGI_FORMAT_X24_TYPELESS_G8_UINT: return DXGI_FORMAT_R24G8_TYPELESS;
182
183 case DXGI_FORMAT_D32_FLOAT_S8X24_UINT: return DXGI_FORMAT_R32G8X24_TYPELESS;
184 case DXGI_FORMAT_X32_TYPELESS_G8X24_UINT: return DXGI_FORMAT_R32G8X24_TYPELESS;
185
186 case DXGI_FORMAT_D32_FLOAT: return DXGI_FORMAT_R32_TYPELESS;
187 case DXGI_FORMAT_D16_UNORM: return DXGI_FORMAT_R16_TYPELESS;
188 };
189 return InFormat;
190 }
191
196 inline bool HasStencilBits(DXGI_FORMAT InFormat)
197 {
198 switch (InFormat)
199 {
200 case DXGI_FORMAT_D24_UNORM_S8_UINT:
201 case DXGI_FORMAT_D32_FLOAT_S8X24_UINT:
202 return true;
203 };
204 return false;
205 }
206
207 inline bool IsBlockCompressedFormat(DXGI_FORMAT Format)
208 {
209 // Returns true if BC1, BC2, BC3, BC4, BC5, BC6, BC7
210 return (Format >= DXGI_FORMAT_BC1_TYPELESS && Format <= DXGI_FORMAT_BC5_SNORM) ||
211 (Format >= DXGI_FORMAT_BC6H_TYPELESS && Format <= DXGI_FORMAT_BC7_UNORM_SRGB);
212 }
213
214 inline uint8 GetPlaneSliceFromViewFormat(DXGI_FORMAT ResourceFormat, DXGI_FORMAT ViewFormat)
215 {
216 // Currently, the only planar resources used are depth-stencil formats
217 switch (FindDepthStencilParentDXGIFormat(ResourceFormat))
218 {
219 case DXGI_FORMAT_R24G8_TYPELESS:
220 switch (ViewFormat)
221 {
222 case DXGI_FORMAT_R24_UNORM_X8_TYPELESS: return 0;
223 case DXGI_FORMAT_X24_TYPELESS_G8_UINT: return 1;
224 }
225 break;
226
227 case DXGI_FORMAT_R32G8X24_TYPELESS:
228 switch (ViewFormat)
229 {
230 case DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS: return 0;
231 case DXGI_FORMAT_X32_TYPELESS_G8X24_UINT: return 1;
232 }
233 break;
234
235 case DXGI_FORMAT_NV12:
236 switch (ViewFormat)
237 {
238 case DXGI_FORMAT_R8_UNORM: return 0;
239 case DXGI_FORMAT_R8G8_UNORM: return 1;
240 }
241 break;
242
243 case DXGI_FORMAT_P010:
244 switch (ViewFormat)
245 {
246 case DXGI_FORMAT_R16_UNORM: return 0;
247 case DXGI_FORMAT_R16G16_UNORM: return 1;
248 }
249 break;
250 }
251
252 return 0;
253 }
254
255 inline uint8 GetPlaneCount(DXGI_FORMAT Format)
256 {
257 // Currently, the only planar resources used are depth-stencil formats
258 switch (FindDepthStencilParentDXGIFormat(Format))
259 {
260 case DXGI_FORMAT_R24G8_TYPELESS:
261 case DXGI_FORMAT_R32G8X24_TYPELESS:
262 return 2;
263 default:
264 return 1;
265 }
266 }
267
268 inline uint32 GetWidthAlignment(DXGI_FORMAT Format)
269 {
270 switch (Format)
271 {
272 case DXGI_FORMAT_R8G8_B8G8_UNORM: return 2;
273 case DXGI_FORMAT_G8R8_G8B8_UNORM: return 2;
274 case DXGI_FORMAT_NV12: return 2;
275 case DXGI_FORMAT_P010: return 2;
276 case DXGI_FORMAT_P016: return 2;
277 case DXGI_FORMAT_420_OPAQUE: return 2;
278 case DXGI_FORMAT_YUY2: return 2;
279 case DXGI_FORMAT_Y210: return 2;
280 case DXGI_FORMAT_Y216: return 2;
281 case DXGI_FORMAT_BC1_TYPELESS: return 4;
282 case DXGI_FORMAT_BC1_UNORM: return 4;
283 case DXGI_FORMAT_BC1_UNORM_SRGB: return 4;
284 case DXGI_FORMAT_BC2_TYPELESS: return 4;
285 case DXGI_FORMAT_BC2_UNORM: return 4;
286 case DXGI_FORMAT_BC2_UNORM_SRGB: return 4;
287 case DXGI_FORMAT_BC3_TYPELESS: return 4;
288 case DXGI_FORMAT_BC3_UNORM: return 4;
289 case DXGI_FORMAT_BC3_UNORM_SRGB: return 4;
290 case DXGI_FORMAT_BC4_TYPELESS: return 4;
291 case DXGI_FORMAT_BC4_UNORM: return 4;
292 case DXGI_FORMAT_BC4_SNORM: return 4;
293 case DXGI_FORMAT_BC5_TYPELESS: return 4;
294 case DXGI_FORMAT_BC5_UNORM: return 4;
295 case DXGI_FORMAT_BC5_SNORM: return 4;
296 case DXGI_FORMAT_BC6H_TYPELESS: return 4;
297 case DXGI_FORMAT_BC6H_UF16: return 4;
298 case DXGI_FORMAT_BC6H_SF16: return 4;
299 case DXGI_FORMAT_BC7_TYPELESS: return 4;
300 case DXGI_FORMAT_BC7_UNORM: return 4;
301 case DXGI_FORMAT_BC7_UNORM_SRGB: return 4;
302 case DXGI_FORMAT_NV11: return 4;
303 case DXGI_FORMAT_R1_UNORM: return 8;
304 default: return 1;
305 }
306 }
307
308 inline uint32 GetHeightAlignment(DXGI_FORMAT Format)
309 {
310 switch (Format)
311 {
312 case DXGI_FORMAT_NV12: return 2;
313 case DXGI_FORMAT_P010: return 2;
314 case DXGI_FORMAT_P016: return 2;
315 case DXGI_FORMAT_420_OPAQUE: return 2;
316 case DXGI_FORMAT_BC1_TYPELESS: return 4;
317 case DXGI_FORMAT_BC1_UNORM: return 4;
318 case DXGI_FORMAT_BC1_UNORM_SRGB: return 4;
319 case DXGI_FORMAT_BC2_TYPELESS: return 4;
320 case DXGI_FORMAT_BC2_UNORM: return 4;
321 case DXGI_FORMAT_BC2_UNORM_SRGB: return 4;
322 case DXGI_FORMAT_BC3_TYPELESS: return 4;
323 case DXGI_FORMAT_BC3_UNORM: return 4;
324 case DXGI_FORMAT_BC3_UNORM_SRGB: return 4;
325 case DXGI_FORMAT_BC4_TYPELESS: return 4;
326 case DXGI_FORMAT_BC4_UNORM: return 4;
327 case DXGI_FORMAT_BC4_SNORM: return 4;
328 case DXGI_FORMAT_BC5_TYPELESS: return 4;
329 case DXGI_FORMAT_BC5_UNORM: return 4;
330 case DXGI_FORMAT_BC5_SNORM: return 4;
331 case DXGI_FORMAT_BC6H_TYPELESS: return 4;
332 case DXGI_FORMAT_BC6H_UF16: return 4;
333 case DXGI_FORMAT_BC6H_SF16: return 4;
334 case DXGI_FORMAT_BC7_TYPELESS: return 4;
335 case DXGI_FORMAT_BC7_UNORM: return 4;
336 case DXGI_FORMAT_BC7_UNORM_SRGB: return 4;
337 default: return 1;
338 }
339 }
340
341 inline uint32 GetFormatSizeInBits(DXGI_FORMAT Format)
342 {
343 switch (Format)
344 {
345 default: checkNoEntry(); [[fallthrough]];
346 case DXGI_FORMAT_UNKNOWN:
347 return 0;
348
349 case DXGI_FORMAT_R32G32B32A32_TYPELESS:
350 case DXGI_FORMAT_R32G32B32A32_FLOAT:
351 case DXGI_FORMAT_R32G32B32A32_UINT:
352 case DXGI_FORMAT_R32G32B32A32_SINT:
353 case DXGI_FORMAT_BC2_TYPELESS:
354 case DXGI_FORMAT_BC2_UNORM:
355 case DXGI_FORMAT_BC2_UNORM_SRGB:
356 case DXGI_FORMAT_BC3_TYPELESS:
357 case DXGI_FORMAT_BC3_UNORM:
358 case DXGI_FORMAT_BC3_UNORM_SRGB:
359 case DXGI_FORMAT_BC5_TYPELESS:
360 case DXGI_FORMAT_BC5_UNORM:
361 case DXGI_FORMAT_BC5_SNORM:
362 case DXGI_FORMAT_BC6H_TYPELESS:
363 case DXGI_FORMAT_BC6H_UF16:
364 case DXGI_FORMAT_BC6H_SF16:
365 case DXGI_FORMAT_BC7_TYPELESS:
366 case DXGI_FORMAT_BC7_UNORM:
367 case DXGI_FORMAT_BC7_UNORM_SRGB:
368 return 128;
369
370 case DXGI_FORMAT_R32G32B32_TYPELESS:
371 case DXGI_FORMAT_R32G32B32_FLOAT:
372 case DXGI_FORMAT_R32G32B32_UINT:
373 case DXGI_FORMAT_R32G32B32_SINT:
374 return 96;
375
376 case DXGI_FORMAT_R16G16B16A16_TYPELESS:
377 case DXGI_FORMAT_R16G16B16A16_FLOAT:
378 case DXGI_FORMAT_R16G16B16A16_UNORM:
379 case DXGI_FORMAT_R16G16B16A16_UINT:
380 case DXGI_FORMAT_R16G16B16A16_SNORM:
381 case DXGI_FORMAT_R16G16B16A16_SINT:
382 case DXGI_FORMAT_R32G32_TYPELESS:
383 case DXGI_FORMAT_R32G32_FLOAT:
384 case DXGI_FORMAT_R32G32_UINT:
385 case DXGI_FORMAT_R32G32_SINT:
386 case DXGI_FORMAT_R32G8X24_TYPELESS:
387 case DXGI_FORMAT_D32_FLOAT_S8X24_UINT:
388 case DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS:
389 case DXGI_FORMAT_X32_TYPELESS_G8X24_UINT:
390 case DXGI_FORMAT_BC1_TYPELESS:
391 case DXGI_FORMAT_BC1_UNORM:
392 case DXGI_FORMAT_BC1_UNORM_SRGB:
393 case DXGI_FORMAT_BC4_TYPELESS:
394 case DXGI_FORMAT_BC4_UNORM:
395 case DXGI_FORMAT_BC4_SNORM:
396 case DXGI_FORMAT_Y416:
397 case DXGI_FORMAT_Y210:
398 case DXGI_FORMAT_Y216:
399 return 64;
400
401 case DXGI_FORMAT_R10G10B10A2_TYPELESS:
402 case DXGI_FORMAT_R10G10B10A2_UNORM:
403 case DXGI_FORMAT_R10G10B10A2_UINT:
404 case DXGI_FORMAT_R11G11B10_FLOAT:
405 case DXGI_FORMAT_R8G8B8A8_TYPELESS:
406 case DXGI_FORMAT_R8G8B8A8_UNORM:
407 case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB:
408 case DXGI_FORMAT_R8G8B8A8_UINT:
409 case DXGI_FORMAT_R8G8B8A8_SNORM:
410 case DXGI_FORMAT_R8G8B8A8_SINT:
411 case DXGI_FORMAT_R16G16_TYPELESS:
412 case DXGI_FORMAT_R16G16_FLOAT:
413 case DXGI_FORMAT_R16G16_UNORM:
414 case DXGI_FORMAT_R16G16_UINT:
415 case DXGI_FORMAT_R16G16_SNORM:
416 case DXGI_FORMAT_R16G16_SINT:
417 case DXGI_FORMAT_R32_TYPELESS:
418 case DXGI_FORMAT_D32_FLOAT:
419 case DXGI_FORMAT_R32_FLOAT:
420 case DXGI_FORMAT_R32_UINT:
421 case DXGI_FORMAT_R32_SINT:
422 case DXGI_FORMAT_R24G8_TYPELESS:
423 case DXGI_FORMAT_D24_UNORM_S8_UINT:
424 case DXGI_FORMAT_R24_UNORM_X8_TYPELESS:
425 case DXGI_FORMAT_X24_TYPELESS_G8_UINT:
426 case DXGI_FORMAT_R9G9B9E5_SHAREDEXP:
427 case DXGI_FORMAT_R8G8_B8G8_UNORM:
428 case DXGI_FORMAT_G8R8_G8B8_UNORM:
429 case DXGI_FORMAT_B8G8R8A8_UNORM:
430 case DXGI_FORMAT_B8G8R8X8_UNORM:
431 case DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM:
432 case DXGI_FORMAT_B8G8R8A8_TYPELESS:
433 case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB:
434 case DXGI_FORMAT_B8G8R8X8_TYPELESS:
435 case DXGI_FORMAT_B8G8R8X8_UNORM_SRGB:
436 case DXGI_FORMAT_AYUV:
437 case DXGI_FORMAT_Y410:
438 case DXGI_FORMAT_P010:
439 case DXGI_FORMAT_P016:
440 case DXGI_FORMAT_YUY2:
441 return 32;
442
443 case DXGI_FORMAT_R8G8_TYPELESS:
444 case DXGI_FORMAT_R8G8_UNORM:
445 case DXGI_FORMAT_R8G8_UINT:
446 case DXGI_FORMAT_R8G8_SNORM:
447 case DXGI_FORMAT_R8G8_SINT:
448 case DXGI_FORMAT_R16_TYPELESS:
449 case DXGI_FORMAT_R16_FLOAT:
450 case DXGI_FORMAT_D16_UNORM:
451 case DXGI_FORMAT_R16_UNORM:
452 case DXGI_FORMAT_R16_UINT:
453 case DXGI_FORMAT_R16_SNORM:
454 case DXGI_FORMAT_R16_SINT:
455 case DXGI_FORMAT_B5G6R5_UNORM:
456 case DXGI_FORMAT_B5G5R5A1_UNORM:
457 case DXGI_FORMAT_B4G4R4A4_UNORM:
458 case DXGI_FORMAT_NV12:
459 case DXGI_FORMAT_NV11:
460 return 16;
461
462 case DXGI_FORMAT_R8_TYPELESS:
463 case DXGI_FORMAT_R8_UNORM:
464 case DXGI_FORMAT_R8_UINT:
465 case DXGI_FORMAT_R8_SNORM:
466 case DXGI_FORMAT_R8_SINT:
467 case DXGI_FORMAT_A8_UNORM:
468 return 8;
469
470 case DXGI_FORMAT_R1_UNORM:
471 return 1;
472 }
473 }
474
475 inline uint32 GetFormatSizeInBytes(DXGI_FORMAT Format)
476 {
477 return GetFormatSizeInBits(Format) / 8;
478 }
479
480 inline DXGI_FORMAT GetSwapChainFormat(EPixelFormat PixelFormat)
481 {
482 DXGI_FORMAT DXFormat = static_cast<DXGI_FORMAT>(GPixelFormats[PixelFormat].PlatformFormat);
483 switch (DXFormat)
484 {
485 case DXGI_FORMAT_B8G8R8A8_TYPELESS: return DXGI_FORMAT_B8G8R8A8_UNORM;
486 case DXGI_FORMAT_BC1_TYPELESS: return DXGI_FORMAT_BC1_UNORM;
487 case DXGI_FORMAT_BC2_TYPELESS: return DXGI_FORMAT_BC2_UNORM;
488 case DXGI_FORMAT_BC3_TYPELESS: return DXGI_FORMAT_BC3_UNORM;
489 case DXGI_FORMAT_R16_TYPELESS: return DXGI_FORMAT_R16_UNORM;
490 case DXGI_FORMAT_R8G8B8A8_TYPELESS: return DXGI_FORMAT_R8G8B8A8_UNORM;
491 default: return DXFormat;
492 }
493 }
494} // UE::DXGIUtilities
495
496#endif // PLATFORM_MICROSOFT
checkNoEntry
#define checkNoEntry()
Definition AssertionMacros.h:316
TCHAR
FPlatformTypes::TCHAR TCHAR
Either ANSICHAR or WIDECHAR, depending on whether the platform supports wide characters or the requir...
Definition Platform.h:1135
StaticCastSharedRef
UE_FORCEINLINE_HINT TSharedRef< CastToType, Mode > StaticCastSharedRef(TSharedRef< CastFromType, Mode > const &InSharedRef)
Definition SharedPointer.h:127
EnumHasAnyFlags
constexpr bool EnumHasAnyFlags(Enum Flags, Enum Contains)
Definition EnumClassFlags.h:35
THIRD_PARTY_INCLUDES_START
#define THIRD_PARTY_INCLUDES_START
Definition GenericPlatformCompilerPreSetup.h:63
GPixelFormats
FPixelFormatInfo GPixelFormats[PF_MAX]
Definition PixelFormat.cpp:31
IsBlockCompressedFormat
bool IsBlockCompressedFormat(EPixelFormat Format)
Definition PixelFormat.h:312
EPixelFormat
EPixelFormat
Definition PixelFormat.h:16
ETextureCreateFlags
ETextureCreateFlags
Definition RHIDefinitions.h:1091
uint8
uint8_t uint8
Definition binka_ue_file_header.h:8
uint32
uint32_t uint32
Definition binka_ue_file_header.h:6
THIRD_PARTY_INCLUDES_END
Definition Voronoi.cpp:10
FPixelFormatInfo::PlatformFormat
uint32 PlatformFormat
Definition PixelFormat.h:477