1 // 2 // Copyright 2016 The ANGLE Project Authors. All rights reserved. 3 // Use of this source code is governed by a BSD-style license that can be 4 // found in the LICENSE file. 5 // 6 // Helper routines for the D3D11 texture format table. 7 8 #ifndef LIBANGLE_RENDERER_D3D_D3D11_TEXTURE_FORMAT_TABLE_UTILS_H_ 9 #define LIBANGLE_RENDERER_D3D_D3D11_TEXTURE_FORMAT_TABLE_UTILS_H_ 10 11 #include "libANGLE/renderer/d3d/d3d11/Renderer11.h" 12 13 namespace rx 14 { 15 16 namespace d3d11 17 { 18 19 using FormatSupportFunction = bool (*)(const Renderer11DeviceCaps &); 20 OnlyFL10Plus(const Renderer11DeviceCaps & deviceCaps)21inline bool OnlyFL10Plus(const Renderer11DeviceCaps &deviceCaps) 22 { 23 return (deviceCaps.featureLevel >= D3D_FEATURE_LEVEL_10_0); 24 } 25 OnlyFL9_3(const Renderer11DeviceCaps & deviceCaps)26inline bool OnlyFL9_3(const Renderer11DeviceCaps &deviceCaps) 27 { 28 return (deviceCaps.featureLevel == D3D_FEATURE_LEVEL_9_3); 29 } 30 SupportsFormat(DXGI_FORMAT format,const Renderer11DeviceCaps & deviceCaps)31inline bool SupportsFormat(DXGI_FORMAT format, const Renderer11DeviceCaps &deviceCaps) 32 { 33 // Must support texture, SRV and RTV support 34 UINT mustSupport = D3D11_FORMAT_SUPPORT_TEXTURE2D | D3D11_FORMAT_SUPPORT_TEXTURECUBE | 35 D3D11_FORMAT_SUPPORT_SHADER_SAMPLE | D3D11_FORMAT_SUPPORT_MIP | 36 D3D11_FORMAT_SUPPORT_RENDER_TARGET; 37 UINT minimumRequiredSamples = 0; 38 39 if (d3d11_gl::GetMaximumClientVersion(deviceCaps.featureLevel).major > 2) 40 { 41 mustSupport |= D3D11_FORMAT_SUPPORT_TEXTURE3D; 42 43 // RGBA4, RGB5A1 and RGB565 are all required multisampled renderbuffer formats in ES3 and 44 // need to support a minimum of 4 samples. 45 minimumRequiredSamples = 4; 46 } 47 48 bool fullSupport = false; 49 if (format == DXGI_FORMAT_B5G6R5_UNORM) 50 { 51 // All hardware that supports DXGI_FORMAT_B5G6R5_UNORM should support autogen mipmaps, but 52 // check anyway. 53 mustSupport |= D3D11_FORMAT_SUPPORT_MIP_AUTOGEN; 54 fullSupport = ((deviceCaps.B5G6R5support & mustSupport) == mustSupport) && 55 deviceCaps.B5G6R5maxSamples >= minimumRequiredSamples; 56 } 57 else if (format == DXGI_FORMAT_B4G4R4A4_UNORM) 58 { 59 fullSupport = ((deviceCaps.B4G4R4A4support & mustSupport) == mustSupport) && 60 deviceCaps.B4G4R4A4maxSamples >= minimumRequiredSamples; 61 } 62 else if (format == DXGI_FORMAT_B5G5R5A1_UNORM) 63 { 64 fullSupport = ((deviceCaps.B5G5R5A1support & mustSupport) == mustSupport) && 65 deviceCaps.B5G5R5A1maxSamples >= minimumRequiredSamples; 66 } 67 else 68 { 69 UNREACHABLE(); 70 return false; 71 } 72 73 // This means that ANGLE would like to use the entry in the map if the inputted DXGI format 74 // *IS* supported. 75 // e.g. the entry might map GL_RGB5_A1 to DXGI_FORMAT_B5G5R5A1, which should only be used if 76 // DXGI_FORMAT_B5G5R5A1 is supported. 77 // In this case, we should only return 'true' if the format *IS* supported. 78 return fullSupport; 79 } 80 81 } // namespace d3d11 82 83 } // namespace rx 84 85 #endif // LIBANGLE_RENDERER_D3D_D3D11_TEXTURE_FORMAT_TABLE_UTILS_H_ 86