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Add support for QOI image formats
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Cacodemon345
Rachael Alexanderson
parent
fe7beaaf17
commit
c727e40e6c
3 changed files with 222 additions and 0 deletions
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@ -1030,6 +1030,7 @@ set (PCH_SOURCES
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common/textures/formats/stbtexture.cpp
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common/textures/formats/anmtexture.cpp
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common/textures/formats/startscreentexture.cpp
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common/textures/formats/qoitexture.cpp
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common/textures/hires/hqresize.cpp
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common/models/models_md3.cpp
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common/models/models_md2.cpp
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219
src/common/textures/formats/qoitexture.cpp
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src/common/textures/formats/qoitexture.cpp
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@ -0,0 +1,219 @@
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/*
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** qoitexture.cpp
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** Texture class for QOI (Quite OK Image Format) images
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**
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**---------------------------------------------------------------------------
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** Copyright 2023 Cacodemon345
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** Copyright 2022 Dominic Szablewski
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** All rights reserved.
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**
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** Permission is hereby granted, free of charge, to any person obtaining a copy
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** of this software and associated documentation files (the "Software"), to deal
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** in the Software without restriction, including without limitation the rights
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** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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** copies of the Software, and to permit persons to whom the Software is
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** furnished to do so, subject to the following conditions:
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**
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** The above copyright notice and this permission notice shall be included in all
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** copies or substantial portions of the Software.
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**
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** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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** SOFTWARE.
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**---------------------------------------------------------------------------
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**
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**
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*/
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#include "files.h"
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#include "filesystem.h"
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#include "bitmap.h"
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#include "imagehelpers.h"
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#include "image.h"
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#define QOI_OP_INDEX 0x00 /* 00xxxxxx */
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#define QOI_OP_DIFF 0x40 /* 01xxxxxx */
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#define QOI_OP_LUMA 0x80 /* 10xxxxxx */
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#define QOI_OP_RUN 0xc0 /* 11xxxxxx */
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#define QOI_OP_RGB 0xfe /* 11111110 */
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#define QOI_OP_RGBA 0xff /* 11111111 */
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#define QOI_MASK_2 0xc0 /* 11000000 */
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#define QOI_COLOR_HASH(C) (C.rgba.r * 3 + C.rgba.g * 5 + C.rgba.b * 7 + C.rgba.a * 11)
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#pragma pack(1)
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struct QOIHeader
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{
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char magic[4];
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uint32_t width;
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uint32_t height;
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uint8_t channels;
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uint8_t colorspace;
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};
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#pragma pack()
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typedef union
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{
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struct
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{
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unsigned char r, g, b, a;
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} rgba;
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unsigned int v;
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} QOIRgba;
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class FQOITexture : public FImageSource
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{
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QOIHeader header;
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public:
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FQOITexture(int lumpnum, QOIHeader header);
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PalettedPixels CreatePalettedPixels(int conversion) override;
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int CopyPixels(FBitmap *bmp, int conversion) override;
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};
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FImageSource *QOIImage_TryCreate(FileReader &file, int lumpnum)
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{
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QOIHeader header;
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if (file.GetLength() < (sizeof(header) + 8))
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{
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return nullptr;
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}
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file.Read((void *)&header, sizeof(header));
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if (header.magic[0] != 'q' || header.magic[1] != 'o' || header.magic[2] != 'i' || header.magic[3] != 'f')
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{
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return nullptr;
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}
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if (header.width == 0 || header.height == 0 || header.channels < 3 || header.channels > 4 || header.colorspace > 1)
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{
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return nullptr;
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}
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return new FQOITexture(lumpnum, header);
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}
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FQOITexture::FQOITexture(int lumpnum, QOIHeader qoi_header)
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: FImageSource(lumpnum), header(qoi_header)
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{
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LeftOffset = TopOffset = 0;
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Width = header.width;
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Height = header.height;
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}
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PalettedPixels FQOITexture::CreatePalettedPixels(int conversion)
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{
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FBitmap bitmap;
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bitmap.Create(Width, Height);
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CopyPixels(&bitmap, conversion);
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const uint8_t *data = bitmap.GetPixels();
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uint8_t *dest_p;
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int dest_adv = Height;
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int dest_rew = Width * Height - 1;
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PalettedPixels Pixels(Width * Height);
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dest_p = Pixels.Data();
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bool doalpha = conversion == luminance;
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// Convert the source image from row-major to column-major format and remap it
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for (int y = Height; y != 0; --y)
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{
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for (int x = Width; x != 0; --x)
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{
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int b = *data++;
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int g = *data++;
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int r = *data++;
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int a = *data++;
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if (a < 128)
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*dest_p = 0;
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else
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*dest_p = ImageHelpers::RGBToPalette(doalpha, r, g, b);
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dest_p += dest_adv;
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}
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dest_p -= dest_rew;
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}
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return Pixels;
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}
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int FQOITexture::CopyPixels(FBitmap *bmp, int conversion)
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{
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QOIRgba index[64];
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QOIRgba px;
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size_t px_len = 0, chunks_len = 0, px_pos = 0;
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int run = 0;
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auto file = fileSystem.OpenFileReader(SourceLump);
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memset((void *)index, 0x00, sizeof(index));
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uint8_t *Pixels = new uint8_t[Width * Height * 4];
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px.rgba.r = 0;
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px.rgba.g = 0;
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px.rgba.b = 0;
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px.rgba.a = 255;
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chunks_len = file.GetLength() - 8;
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for (px_pos = 0; px_pos < px_len; px_pos += 4)
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{
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if (run > 0)
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{
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run--;
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}
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else if (file.Tell() < (FileReader::Size)chunks_len)
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{
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int b1 = file.ReadUInt8();
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if (b1 == QOI_OP_RGB || b1 == QOI_OP_RGBA)
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{
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px.rgba.r = file.ReadUInt8();
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px.rgba.g = file.ReadUInt8();
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px.rgba.b = file.ReadUInt8();
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if (b1 == QOI_OP_RGBA)
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px.rgba.a = file.ReadUInt8();
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}
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else if ((b1 & QOI_MASK_2) == QOI_OP_INDEX)
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{
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px = index[b1];
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}
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else if ((b1 & QOI_MASK_2) == QOI_OP_DIFF)
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{
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px.rgba.r += ((b1 >> 4) & 0x03) - 2;
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px.rgba.g += ((b1 >> 2) & 0x03) - 2;
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px.rgba.b += (b1 & 0x03) - 2;
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}
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else if ((b1 & QOI_MASK_2) == QOI_OP_LUMA)
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{
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int b2 = file.ReadUInt8();
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int vg = (b1 & 0x3f) - 32;
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px.rgba.r += vg - 8 + ((b2 >> 4) & 0x0f);
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px.rgba.g += vg;
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px.rgba.b += vg - 8 + (b2 & 0x0f);
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}
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else if ((b1 & QOI_MASK_2) == QOI_OP_RUN)
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{
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run = (b1 & 0x3f);
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}
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index[QOI_COLOR_HASH(px) % 64] = px;
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}
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Pixels[px_pos + 0] = px.rgba.r;
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Pixels[px_pos + 1] = px.rgba.g;
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Pixels[px_pos + 2] = px.rgba.b;
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Pixels[px_pos + 3] = px.rgba.a;
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}
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bmp->CopyPixelDataRGB(0, 0, Pixels, Width, Height, 4, Width * 4, 0, CF_RGBA);
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delete[] Pixels;
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return -1;
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}
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@ -322,6 +322,7 @@ FImageSource *DDSImage_TryCreate(FileReader &, int lumpnum);
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FImageSource *PCXImage_TryCreate(FileReader &, int lumpnum);
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FImageSource *TGAImage_TryCreate(FileReader &, int lumpnum);
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FImageSource *StbImage_TryCreate(FileReader &, int lumpnum);
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FImageSource *QOIImage_TryCreate(FileReader &, int lumpnum);
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FImageSource *AnmImage_TryCreate(FileReader &, int lumpnum);
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FImageSource *RawPageImage_TryCreate(FileReader &, int lumpnum);
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FImageSource *FlatImage_TryCreate(FileReader &, int lumpnum);
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@ -342,6 +343,7 @@ FImageSource * FImageSource::GetImage(int lumpnum, bool isflat)
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{ DDSImage_TryCreate, false },
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{ PCXImage_TryCreate, false },
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{ StbImage_TryCreate, false },
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{ QOIImage_TryCreate, false },
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{ TGAImage_TryCreate, false },
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{ AnmImage_TryCreate, false },
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{ StartupPageImage_TryCreate, false },
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