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dds-ktx: Portable single header DDS/KTX reader for C/C++

@septag

Build Example (ctexview)

ctexview is a tiny ddx-ktx viewer that can be built on linux/mac and windows. To build it just compile the single file with your compiler.

Windows:

cl ctexview.c /O2

Linuxx

gcc ctexview.c -O2 -lGL -ldl -lX11 -lXi -lXcursor -lm -o ctexview

MacOS

clang -framework Foundation -framework CoreServices -framework CoreFoundation -O2 -fobjc-arc -x objective-c -fmodules -x objective-c ctexview.c -o ./ctexview

to view images just provide the image path as an argument:

ctexview [dds_or_ktx_image_file_path]

Used open-source libraries for app creation/graphics: Sokol

Keys:

Usage

In this example, a simple 2D texture is parsed and created using OpenGL

#define DDSKTX_IMPLEMENT
#include "dds-ktx.h"

int size;
void* dds_data = load_file("test.dds", &size);
assert(dds_data);
ddsktx_texture_info tc = {0};
GLuint tex = 0;
if (ddsktx_parse(&tc, dds_data, size, NULL)) {
    assert(tc.depth == 1);
    assert(!(tc.flags & STC_TEXTURE_FLAG_CUBEMAP));
    assert(tc.num_layers == 1);

    //Create GPU texture from tc data
    glGenTextures(1, &tex);
    glActiveTexture(GL_TEXTURE0);
    glBindTexture(img->gl_target, tex);

    for (int mip = 0; mip < tc->num_mips; mip++) {
        ddsktx_sub_data sub_data;
        ddsktx_get_sub(&tc, &sub_data, dds_data, size, 0, 0, mip);
        // Fill/Set texture sub resource data (mips in this case)
        if (ddsktx_format_compressed(tc.format))
            glCompressedTexImage2D(..);
        else
            glTexImage2D(..);
    }

    // Now we can delete file data
    free(dds_data);
}

Links

TODO

Others

NOTE: Many parts of the code is taken from bimg library.

License (BSD 2-clause)

<a href="http://opensource.org/licenses/BSD-2-Clause" target="_blank"> <img align="right" src="http://opensource.org/trademarks/opensource/OSI-Approved-License-100x137.png"> </a>
Copyright 2018 Sepehr Taghdisian. All rights reserved.

https://github.com/septag/dds-ktx

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

   1. Redistributions of source code must retain the above copyright notice,
      this list of conditions and the following disclaimer.

   2. Redistributions in binary form must reproduce the above copyright notice,
      this list of conditions and the following disclaimer in the documentation
      and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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EVENT SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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