Add ktx

2026-06-14 19:09:18 +01:00
parent 14bd1a9271
commit 13fa90a0e9
3958 changed files with 999286 additions and 4 deletions
@@ -0,0 +1,74 @@
+/* -*- tab-width: 4; -*- */
+/* vi: set sw=2 ts=4 expandtab: */
+
+/*
+ * Copyright 2018-2022 Mark Callow.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/**
+ * @file
+ * @brief   GLLoadTestSample derived class for encoding a texture and texturing a cube with it.
+ *
+ * @author Mark Callow, github.com/MarkCallow.
+ */
+
+#ifndef ENCODE_TEXTURE_H
+#define ENCODE_TEXTURE_H
+
+#include "GL3LoadTestSample.h"
+
+#include <iostream>
+
+class EncodeTexture : public GL3LoadTestSample {
+  public:
+    EncodeTexture(uint32_t width, uint32_t height,
+                const char* const szArgs,
+                const std::string sBasePath);
+    ~EncodeTexture();
+
+    virtual void resize(uint32_t width, uint32_t height);
+    virtual void run(uint32_t msTicks);
+
+    //virtual void getOverlayText(GLTextOverlay *textOverlay);
+
+    static LoadTestSample*
+    create(uint32_t width, uint32_t height,
+           const char* const szArgs, const std::string sBasePath);
+
+  protected:
+    void processArgs(std::string sArgs);
+
+    GLuint gnTexture;
+    GLuint gnTexProg;
+
+    GLuint gnVao;
+    GLuint gnVbo[2];
+
+    GLint gulMvMatrixLocTP;
+    GLint gulPMatrixLocTP;
+    GLint gulSamplerLocTP;
+
+    bool bInitialized;
+    ktx_transcode_fmt_e transcodeTarget;
+    enum encode_fmt_e { EF_ASTC = 1, EF_ETC1S = 2, EF_UASTC = 3 };
+    friend std::ostream& operator<<(std::ostream& os, encode_fmt_e format);
+    encode_fmt_e encodeTarget;
+};
+
+inline std::ostream& operator<<(std::ostream& os, EncodeTexture::encode_fmt_e format)
+{
+    switch (format) {
+      case EncodeTexture::EF_ASTC:
+        os << "astc";
+        break;
+      case EncodeTexture::EF_ETC1S:
+        os << "etc1s";
+        break;
+      case EncodeTexture::EF_UASTC:
+        os << "uastc";
+        break;
+    }
+    return os;
+}
+#endif /* ENCODE_TEXTURE_H */