mirror of
https://github.com/microsoft/DirectXTex
synced 2024-11-24 05:10:17 +00:00
Support loading legacy DDS files using mixed channel formats (#501)
This commit is contained in:
parent
e63f915ed8
commit
327c200991
@ -46,6 +46,9 @@ namespace
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CONV_FLAGS_L8 = 0x40000, // Source is a 8 luminance format
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CONV_FLAGS_L8 = 0x40000, // Source is a 8 luminance format
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CONV_FLAGS_L16 = 0x80000, // Source is a 16 luminance format
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CONV_FLAGS_L16 = 0x80000, // Source is a 16 luminance format
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CONV_FLAGS_A8L8 = 0x100000, // Source is a 8:8 luminance format
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CONV_FLAGS_A8L8 = 0x100000, // Source is a 8:8 luminance format
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CONV_FLAGS_L6V5U5 = 0x200000, // Source is a 6:5:5 bumpluminance format
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CONV_FLAGS_L8U8V8 = 0x400000, // Source is a X:8:8:8 bumpluminance format
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CONV_FLAGS_WUV10 = 0x800000, // Source is a 2:10:10:10 bump format
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};
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};
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struct LegacyDDS
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struct LegacyDDS
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@ -141,7 +144,7 @@ namespace
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{ DXGI_FORMAT_R8G8B8A8_UNORM, CONV_FLAGS_EXPAND
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{ DXGI_FORMAT_R8G8B8A8_UNORM, CONV_FLAGS_EXPAND
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| CONV_FLAGS_PAL8
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| CONV_FLAGS_PAL8
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| CONV_FLAGS_A8P8, { sizeof(DDS_PIXELFORMAT), DDS_PAL8A, 0, 16, 0, 0, 0, 0 } }, // D3DFMT_A8P8
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| CONV_FLAGS_A8P8, { sizeof(DDS_PIXELFORMAT), DDS_PAL8A, 0, 16, 0, 0, 0, 0xff00 } }, // D3DFMT_A8P8
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{ DXGI_FORMAT_R8G8B8A8_UNORM, CONV_FLAGS_EXPAND
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{ DXGI_FORMAT_R8G8B8A8_UNORM, CONV_FLAGS_EXPAND
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| CONV_FLAGS_PAL8, { sizeof(DDS_PIXELFORMAT), DDS_PAL8, 0, 8, 0, 0, 0, 0 } }, // D3DFMT_P8
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| CONV_FLAGS_PAL8, { sizeof(DDS_PIXELFORMAT), DDS_PAL8, 0, 8, 0, 0, 0, 0 } }, // D3DFMT_P8
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@ -157,6 +160,11 @@ namespace
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{ DXGI_FORMAT_R8G8_SNORM, CONV_FLAGS_NONE, DDSPF_V8U8 }, // D3DFMT_V8U8
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{ DXGI_FORMAT_R8G8_SNORM, CONV_FLAGS_NONE, DDSPF_V8U8 }, // D3DFMT_V8U8
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{ DXGI_FORMAT_R8G8B8A8_SNORM, CONV_FLAGS_NONE, DDSPF_Q8W8V8U8 }, // D3DFMT_Q8W8V8U8
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{ DXGI_FORMAT_R8G8B8A8_SNORM, CONV_FLAGS_NONE, DDSPF_Q8W8V8U8 }, // D3DFMT_Q8W8V8U8
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{ DXGI_FORMAT_R16G16_SNORM, CONV_FLAGS_NONE, DDSPF_V16U16 }, // D3DFMT_V16U16
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{ DXGI_FORMAT_R16G16_SNORM, CONV_FLAGS_NONE, DDSPF_V16U16 }, // D3DFMT_V16U16
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{ DXGI_FORMAT_R8G8B8A8_UNORM, CONV_FLAGS_L6V5U5
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| CONV_FLAGS_EXPAND, DDSPF_L6V5U5 }, // D3DFMT_L6V5U5
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{ DXGI_FORMAT_R8G8B8A8_UNORM, CONV_FLAGS_L8U8V8, DDSPF_X8L8V8U8 }, // D3DFMT_X8L8V8U8
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{ DXGI_FORMAT_R10G10B10A2_UNORM, CONV_FLAGS_WUV10, DDSPF_A2W10V10U10 }, // D3DFMT_A2W10V10U10
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};
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};
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// Note that many common DDS reader/writers (including D3DX) swap the
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// Note that many common DDS reader/writers (including D3DX) swap the
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@ -166,15 +174,14 @@ namespace
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// header extension and specify the DXGI_FORMAT_R10G10B10A2_UNORM format directly
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// header extension and specify the DXGI_FORMAT_R10G10B10A2_UNORM format directly
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// We do not support the following legacy Direct3D 9 formats:
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// We do not support the following legacy Direct3D 9 formats:
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// BumpDuDv D3DFMT_A2W10V10U10
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// D3DFMT_D16_LOCKABLE (DDPF_ZBUFFER: 0x00000400)
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// BumpLuminance D3DFMT_L6V5U5, D3DFMT_X8L8V8U8
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// FourCC 117 D3DFMT_CxV8U8
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// ZBuffer D3DFMT_D16_LOCKABLE
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// FourCC 82 D3DFMT_D32F_LOCKABLE
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// FourCC 82 D3DFMT_D32F_LOCKABLE
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// FourCC 117 D3DFMT_CxV8U8
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// We do not support the following known FourCC codes:
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// We do not support the following known FourCC codes:
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// FourCC CTX1 (Xbox 360 only)
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// FourCC CTX1 (Xbox 360 only)
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// FourCC EAR, EARG, ET2, ET2A (Ericsson Texture Compression)
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// FourCC EAR, EARG, ET2, ET2A (Ericsson Texture Compression)
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// FourCC MET1 (a.k.a. D3DFMT_MULTI2_ARGB8; rarely supported by any hardware)
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DXGI_FORMAT GetDXGIFormat(const DDS_HEADER& hdr, const DDS_PIXELFORMAT& ddpf,
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DXGI_FORMAT GetDXGIFormat(const DDS_HEADER& hdr, const DDS_PIXELFORMAT& ddpf,
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DDS_FLAGS flags,
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DDS_FLAGS flags,
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@ -215,17 +222,16 @@ namespace
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if (ddpf.fourCC == entry->ddpf.fourCC)
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if (ddpf.fourCC == entry->ddpf.fourCC)
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break;
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break;
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}
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}
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else if (ddpfFlags == entry->ddpf.flags)
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else if ((ddpfFlags == entry->ddpf.flags) && (ddpf.RGBBitCount == entry->ddpf.RGBBitCount))
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{
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{
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if (entry->ddpf.flags & DDS_PAL8)
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if (entry->ddpf.flags & DDS_PAL8)
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{
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{
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if (ddpf.RGBBitCount == entry->ddpf.RGBBitCount)
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// PAL8 / PAL8A
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break;
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break;
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}
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}
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else if (entry->ddpf.flags & DDS_ALPHA)
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else if (entry->ddpf.flags & DDS_ALPHA)
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{
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{
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if (ddpf.RGBBitCount == entry->ddpf.RGBBitCount
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if (ddpf.ABitMask == entry->ddpf.ABitMask)
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&& ddpf.ABitMask == entry->ddpf.ABitMask)
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break;
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break;
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}
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}
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else if (entry->ddpf.flags & DDS_LUMINANCE)
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else if (entry->ddpf.flags & DDS_LUMINANCE)
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@ -233,47 +239,52 @@ namespace
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if (entry->ddpf.flags & DDS_ALPHAPIXELS)
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if (entry->ddpf.flags & DDS_ALPHAPIXELS)
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{
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{
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// LUMINANCEA
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// LUMINANCEA
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if (ddpf.RGBBitCount == entry->ddpf.RGBBitCount
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if (ddpf.RBitMask == entry->ddpf.RBitMask
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&& ddpf.RBitMask == entry->ddpf.RBitMask
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&& ddpf.ABitMask == entry->ddpf.ABitMask)
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&& ddpf.ABitMask == entry->ddpf.ABitMask)
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break;
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break;
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}
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}
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else
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else
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{
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{
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// LUMINANCE
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// LUMINANCE
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if (ddpf.RGBBitCount == entry->ddpf.RGBBitCount
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if (ddpf.RBitMask == entry->ddpf.RBitMask)
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&& ddpf.RBitMask == entry->ddpf.RBitMask)
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break;
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break;
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}
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}
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}
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}
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else if (entry->ddpf.flags & DDS_BUMPDUDV)
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else if (entry->ddpf.flags & DDS_BUMPDUDV)
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{
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{
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if (ddpf.RGBBitCount == entry->ddpf.RGBBitCount
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if (entry->ddpf.flags & DDS_ALPHAPIXELS)
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&& ddpf.RBitMask == entry->ddpf.RBitMask
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{
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// BUMPDUDVA
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if (ddpf.RBitMask == entry->ddpf.RBitMask
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&& ddpf.ABitMask == entry->ddpf.ABitMask)
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{
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flags &= ~DDS_FLAGS_NO_R10B10G10A2_FIXUP;
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break;
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}
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}
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else
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{
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// BUMPDUDV
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if (ddpf.RBitMask == entry->ddpf.RBitMask)
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break;
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}
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}
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else if (entry->ddpf.flags & DDS_ALPHAPIXELS)
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{
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// RGBA
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if (ddpf.RBitMask == entry->ddpf.RBitMask
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&& ddpf.GBitMask == entry->ddpf.GBitMask
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&& ddpf.GBitMask == entry->ddpf.GBitMask
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&& ddpf.BBitMask == entry->ddpf.BBitMask
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&& ddpf.BBitMask == entry->ddpf.BBitMask
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&& ddpf.ABitMask == entry->ddpf.ABitMask)
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&& ddpf.ABitMask == entry->ddpf.ABitMask)
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break;
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break;
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}
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}
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else if (ddpf.RGBBitCount == entry->ddpf.RGBBitCount)
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else
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{
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{
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if (entry->ddpf.flags & DDS_ALPHAPIXELS)
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// RGB
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{
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if (ddpf.RBitMask == entry->ddpf.RBitMask
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// RGBA
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&& ddpf.GBitMask == entry->ddpf.GBitMask
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if (ddpf.RBitMask == entry->ddpf.RBitMask
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&& ddpf.BBitMask == entry->ddpf.BBitMask)
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&& ddpf.GBitMask == entry->ddpf.GBitMask
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break;
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&& ddpf.BBitMask == entry->ddpf.BBitMask
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&& ddpf.ABitMask == entry->ddpf.ABitMask)
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break;
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}
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else
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{
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// RGB
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if (ddpf.RBitMask == entry->ddpf.RBitMask
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&& ddpf.GBitMask == entry->ddpf.GBitMask
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&& ddpf.BBitMask == entry->ddpf.BBitMask)
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break;
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}
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}
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}
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}
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}
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}
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}
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@ -996,7 +1007,10 @@ namespace
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TEXP_LEGACY_B4G4R4A4,
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TEXP_LEGACY_B4G4R4A4,
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TEXP_LEGACY_L8,
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TEXP_LEGACY_L8,
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TEXP_LEGACY_L16,
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TEXP_LEGACY_L16,
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TEXP_LEGACY_A8L8
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TEXP_LEGACY_A8L8,
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TEXP_LEGACY_L6V5U5,
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TEXP_LEGACY_X8L8V8U8,
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TEXP_LEGACY_A2W10V10U10
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};
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};
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constexpr TEXP_LEGACY_FORMAT FindLegacyFormat(uint32_t flags) noexcept
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constexpr TEXP_LEGACY_FORMAT FindLegacyFormat(uint32_t flags) noexcept
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@ -1023,6 +1037,12 @@ namespace
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lformat = TEXP_LEGACY_L16;
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lformat = TEXP_LEGACY_L16;
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else if (flags & CONV_FLAGS_A8L8)
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else if (flags & CONV_FLAGS_A8L8)
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lformat = TEXP_LEGACY_A8L8;
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lformat = TEXP_LEGACY_A8L8;
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else if (flags & CONV_FLAGS_L6V5U5)
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lformat = TEXP_LEGACY_L6V5U5;
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else if (flags & CONV_FLAGS_L8U8V8)
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lformat = TEXP_LEGACY_X8L8V8U8;
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else if (flags & CONV_FLAGS_WUV10)
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lformat = TEXP_LEGACY_A2W10V10U10;
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return lformat;
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return lformat;
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}
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}
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@ -1328,11 +1348,120 @@ namespace
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}
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}
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return false;
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return false;
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case TEXP_LEGACY_L6V5U5:
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if (outFormat != DXGI_FORMAT_R8G8B8A8_UNORM)
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return false;
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// D3DFMT_L6V5U5 -> DXGI_FORMAT_R8G8B8A8_UNORM (LUVA)
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if (inSize >= 2 && outSize >= 4)
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{
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const uint16_t* __restrict sPtr = static_cast<const uint16_t*>(pSource);
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uint32_t * __restrict dPtr = static_cast<uint32_t*>(pDestination);
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for (size_t ocount = 0, icount = 0; ((icount < (inSize - 1)) && (ocount < (outSize - 3))); icount += 2, ocount += 4)
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{
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const uint16_t t = *(sPtr++);
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// Converts unsigned 6-bit/signed 5-bit/signed 5-bit bump luminance to 8:8:8:8 unsigned
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uint32_t t1 = ((t & 0xFC00) >> 8) | ((t & 0xC000) >> 14);
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constexpr int m = 1U << 4;
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int8_t v = ((((t >> 5) & 0x1f) ^ m) - m) + 16;
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int8_t u = (((t & 0x1f) ^ m) - m) + 16;
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uint32_t t2 = u << 3 | u >> 2;
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uint32_t t3 = v << 3 | v >> 2;
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*(dPtr++) = t1 | (t2 << 8) | (t3 << 16) | 0xff000000;
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}
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return true;
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}
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return false;
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default:
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default:
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return false;
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return false;
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}
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}
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}
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}
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_Success_(return)
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bool LegacyConvertScanline(
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_Out_writes_bytes_(outSize) void* pDestination,
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size_t outSize,
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_In_ DXGI_FORMAT outFormat,
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_In_reads_bytes_(inSize) const void* pSource,
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size_t inSize,
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_In_ TEXP_LEGACY_FORMAT inFormat,
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uint32_t tflags) noexcept
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{
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assert(pDestination && outSize > 0);
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assert(pSource && inSize > 0);
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switch (inFormat)
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{
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case TEXP_LEGACY_X8L8V8U8:
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if (outFormat != DXGI_FORMAT_R8G8B8A8_UNORM)
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return false;
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// D3DFMT_X8L8V8U8 -> DXGI_FORMAT_R8G8B8A8_UNORM (LUVA)
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if (inSize >= 4 && outSize >= 4)
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{
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auto sPtr = static_cast<const uint32_t*>(pSource);
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auto dPtr = static_cast<uint32_t*>(pDestination);
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for (size_t ocount = 0, icount = 0; ((icount < (inSize - 3)) && (ocount < (outSize - 3))); icount += 4, ocount += 4)
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{
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const uint32_t t = *(sPtr++);
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// Converts 8-bit unsigned / 8-bit signed / 8-bit signed to 8:8:8:8 unsigned
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uint32_t t1 = (t >> 16) & 0xff;
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constexpr int m = 1U << 7;
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uint32_t v = ((((t >> 8) & 0xff) ^ m) - m) + 128;
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uint32_t u = (((t & 0xff) ^ m) - m) + 128;
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uint32_t t2 = u << 8;
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uint32_t t3 = v << 16;
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*(dPtr++) = t1 | t2 | t3 | 0xff000000;
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}
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return true;
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}
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return false;
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case TEXP_LEGACY_A2W10V10U10:
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if (outFormat != DXGI_FORMAT_R10G10B10A2_UNORM)
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return false;
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// D3DFMT_A2W10V10U10 -> DXGI_FORMAT_R10G10B10A2_UNORM (UVWA)
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if (inSize >= 4 && outSize >= 4)
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{
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auto sPtr = static_cast<const uint32_t*>(pSource);
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auto dPtr = static_cast<uint32_t*>(pDestination);
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for (size_t ocount = 0, icount = 0; ((icount < (inSize - 3)) && (ocount < (outSize - 3))); icount += 4, ocount += 4)
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{
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const uint32_t t = *(sPtr++);
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// Converts 2-bit unsigned / 10-bit signed / 10-bit signed / 10-bit signed to 2:10:10:10 unsigned
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constexpr int m = 1U << 9;
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uint32_t w = ((((t >> 20) & 0x3ff) ^ m) - m) + 512;
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uint32_t v = ((((t >> 10) & 0x3ff) ^ m) - m) + 512;
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uint32_t u = (((t & 0x3ff) ^ m) - m) + 512;
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uint32_t t1 = u;
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uint32_t t2 = v << 10;
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uint32_t t3 = w << 20;
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uint32_t ta = (tflags & TEXP_SCANLINE_SETALPHA) ? 0xC0000000 : (t & 0xC0000000);
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*(dPtr++) = t1 | t2 | t3 | ta;
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}
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return true;
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}
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return false;
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default:
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return false;
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}
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}
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//-------------------------------------------------------------------------------------
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//-------------------------------------------------------------------------------------
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// Converts or copies image data from pPixels into scratch image data
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// Converts or copies image data from pPixels into scratch image data
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@ -1356,7 +1485,7 @@ namespace
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{
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{
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if (convFlags & CONV_FLAGS_888)
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if (convFlags & CONV_FLAGS_888)
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cpFlags |= CP_FLAGS_24BPP;
|
cpFlags |= CP_FLAGS_24BPP;
|
||||||
else if (convFlags & (CONV_FLAGS_565 | CONV_FLAGS_5551 | CONV_FLAGS_4444 | CONV_FLAGS_8332 | CONV_FLAGS_A8P8 | CONV_FLAGS_L16 | CONV_FLAGS_A8L8))
|
else if (convFlags & (CONV_FLAGS_565 | CONV_FLAGS_5551 | CONV_FLAGS_4444 | CONV_FLAGS_8332 | CONV_FLAGS_A8P8 | CONV_FLAGS_L16 | CONV_FLAGS_A8L8 | CONV_FLAGS_L6V5U5))
|
||||||
cpFlags |= CP_FLAGS_16BPP;
|
cpFlags |= CP_FLAGS_16BPP;
|
||||||
else if (convFlags & (CONV_FLAGS_44 | CONV_FLAGS_332 | CONV_FLAGS_PAL8 | CONV_FLAGS_L8))
|
else if (convFlags & (CONV_FLAGS_44 | CONV_FLAGS_332 | CONV_FLAGS_PAL8 | CONV_FLAGS_L8))
|
||||||
cpFlags |= CP_FLAGS_8BPP;
|
cpFlags |= CP_FLAGS_8BPP;
|
||||||
@ -1502,13 +1631,18 @@ namespace
|
|||||||
}
|
}
|
||||||
else if (convFlags & CONV_FLAGS_SWIZZLE)
|
else if (convFlags & CONV_FLAGS_SWIZZLE)
|
||||||
{
|
{
|
||||||
SwizzleScanline(pDest, dpitch, pSrc, spitch,
|
SwizzleScanline(pDest, dpitch, pSrc, spitch, metadata.format, tflags);
|
||||||
metadata.format, tflags);
|
}
|
||||||
|
else if (convFlags & (CONV_FLAGS_L8U8V8 | CONV_FLAGS_WUV10))
|
||||||
|
{
|
||||||
|
const TEXP_LEGACY_FORMAT lformat = FindLegacyFormat(convFlags);
|
||||||
|
if (!LegacyConvertScanline(pDest, dpitch, metadata.format,
|
||||||
|
pSrc, spitch, lformat, tflags))
|
||||||
|
return E_FAIL;
|
||||||
}
|
}
|
||||||
else
|
else
|
||||||
{
|
{
|
||||||
CopyScanline(pDest, dpitch, pSrc, spitch,
|
CopyScanline(pDest, dpitch, pSrc, spitch, metadata.format, tflags);
|
||||||
metadata.format, tflags);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
pSrc += spitch;
|
pSrc += spitch;
|
||||||
@ -1605,6 +1739,13 @@ namespace
|
|||||||
{
|
{
|
||||||
SwizzleScanline(pDest, dpitch, pSrc, spitch, metadata.format, tflags);
|
SwizzleScanline(pDest, dpitch, pSrc, spitch, metadata.format, tflags);
|
||||||
}
|
}
|
||||||
|
else if (convFlags & (CONV_FLAGS_L8U8V8 | CONV_FLAGS_WUV10))
|
||||||
|
{
|
||||||
|
const TEXP_LEGACY_FORMAT lformat = FindLegacyFormat(convFlags);
|
||||||
|
if (!LegacyConvertScanline(pDest, dpitch, metadata.format,
|
||||||
|
pSrc, spitch, lformat, tflags))
|
||||||
|
return E_FAIL;
|
||||||
|
}
|
||||||
else
|
else
|
||||||
{
|
{
|
||||||
CopyScanline(pDest, dpitch, pSrc, spitch, metadata.format, tflags);
|
CopyScanline(pDest, dpitch, pSrc, spitch, metadata.format, tflags);
|
||||||
@ -1662,6 +1803,14 @@ namespace
|
|||||||
{
|
{
|
||||||
SwizzleScanline(pPixels, rowPitch, pPixels, rowPitch, metadata.format, tflags);
|
SwizzleScanline(pPixels, rowPitch, pPixels, rowPitch, metadata.format, tflags);
|
||||||
}
|
}
|
||||||
|
else if (convFlags & (CONV_FLAGS_L8U8V8 | CONV_FLAGS_WUV10))
|
||||||
|
{
|
||||||
|
const TEXP_LEGACY_FORMAT lformat = FindLegacyFormat(convFlags);
|
||||||
|
if (!LegacyConvertScanline(pPixels, rowPitch, metadata.format, pPixels, rowPitch, lformat, tflags))
|
||||||
|
{
|
||||||
|
return E_UNEXPECTED;
|
||||||
|
}
|
||||||
|
}
|
||||||
else
|
else
|
||||||
{
|
{
|
||||||
CopyScanline(pPixels, rowPitch, pPixels, rowPitch, metadata.format, tflags);
|
CopyScanline(pPixels, rowPitch, pPixels, rowPitch, metadata.format, tflags);
|
||||||
@ -2133,7 +2282,7 @@ HRESULT DirectX::LoadFromDDSFileEx(
|
|||||||
}
|
}
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
if (convFlags & (CONV_FLAGS_SWIZZLE | CONV_FLAGS_NOALPHA))
|
if (convFlags & (CONV_FLAGS_SWIZZLE | CONV_FLAGS_NOALPHA | CONV_FLAGS_L8U8V8 | CONV_FLAGS_WUV10))
|
||||||
{
|
{
|
||||||
// Swizzle/copy image in place
|
// Swizzle/copy image in place
|
||||||
hr = CopyImageInPlace(convFlags, image);
|
hr = CopyImageInPlace(convFlags, image);
|
||||||
|
Loading…
Reference in New Issue
Block a user