v01

2022-04-05 11:42:28 +03:00
commit 6dc0eb0fcf
5565 changed files with 1200500 additions and 0 deletions
--- a/thirdparty/Pangolin/include/pangolin/gl/glpixformat.h
+++ b/thirdparty/Pangolin/include/pangolin/gl/glpixformat.h
@@ -0,0 +1,95 @@
+/* This file is part of the Pangolin Project.
+ * http://github.com/stevenlovegrove/Pangolin
+ *
+ * Copyright (c) 2014 Steven Lovegrove
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+
+#include <pangolin/gl/glplatform.h>
+#include <pangolin/gl/glformattraits.h>
+#include <pangolin/image/pixel_format.h>
+#include <stdexcept>
+
+namespace pangolin {
+
+// This class may dissapear in the future
+struct GlPixFormat
+{
+    GlPixFormat() {}
+
+    GlPixFormat(const PixelFormat& fmt)
+    {
+        switch( fmt.channels) {
+        case 1: glformat = GL_LUMINANCE; break;
+        case 3: glformat = (fmt.format == "BGR24" || fmt.format == "BGR48")  ? GL_BGR  : GL_RGB;  break;
+        case 4: glformat = (fmt.format == "BGRA24" || fmt.format == "BGRA32" || fmt.format == "BGRA48") ? GL_BGRA : GL_RGBA; break;
+        default: throw std::runtime_error("Unable to form OpenGL format from video format: '" + fmt.format + "'.");
+        }
+
+        const bool is_integral = fmt.format.find('F') == std::string::npos;
+
+        switch (fmt.channel_bits[0]) {
+        case 8: gltype = GL_UNSIGNED_BYTE; break;
+        case 16: gltype = GL_UNSIGNED_SHORT; break;
+        case 32: gltype = (is_integral ? GL_UNSIGNED_INT : GL_FLOAT); break;
+        case 64: gltype = (is_integral ? GL_UNSIGNED_INT64_NV : GL_DOUBLE); break;
+        default: throw std::runtime_error("Unknown OpenGL data type for video format: '" + fmt.format + "'.");
+        }
+
+        if(glformat == GL_LUMINANCE) {
+            if(gltype == GL_UNSIGNED_BYTE) {
+                scalable_internal_format = GL_LUMINANCE8;
+            }else if(gltype == GL_UNSIGNED_SHORT){
+                scalable_internal_format = GL_LUMINANCE16;
+            }else{
+                scalable_internal_format = GL_LUMINANCE32F_ARB;
+            }
+        }else{
+            if(gltype == GL_UNSIGNED_BYTE) {
+                scalable_internal_format = GL_RGBA8;
+            }else if(gltype == GL_UNSIGNED_SHORT) {
+                scalable_internal_format = GL_RGBA16;
+            }else{
+                scalable_internal_format = GL_RGBA32F;
+            }
+        }
+    }
+
+    template<typename T>
+    static GlPixFormat FromType()
+    {
+        GlPixFormat fmt;
+        fmt.glformat = GlFormatTraits<T>::glformat;
+        fmt.gltype = GlFormatTraits<T>::gltype;
+        fmt.scalable_internal_format = GlFormatTraits<T>::glinternalformat;
+        return fmt;
+    }
+
+    GLint glformat;
+    GLenum gltype;
+    GLint scalable_internal_format;
+};
+
+}