1. rcrnstn/gltexture
  2. include
  3. gltexture3d.hpp
Browse code

Add implementation

Robert Cranston authored on 29/12/2021 16:30:02
Showing 1 changed files
include/gltexture3d.hpp
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+#ifndef GLTEXTURE3D_HPP_
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+#define GLTEXTURE3D_HPP_
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+
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+
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+#include <string>
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+#include <utility>
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+
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+#include <gltexturend.hpp>
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+
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+
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+/// Class
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+
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+class GLTexture3D : public GLTextureND<3>
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+{
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+public:
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+
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+    /// Special member functions
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+
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+    explicit GLTexture3D(
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+        std::string object_label,
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+        Size        size,
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+        GLenum      internal_format = GL_RGBA8,
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+        GLenum      wrap            = GL_CLAMP_TO_EDGE,
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+        GLenum      min_filter      = GL_LINEAR,
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+        GLenum      mag_filter      = GL_LINEAR
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+    );
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+
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+    /// Core
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+
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+    GLTexture3D static const & empty();
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+
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+private:
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+
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+    /// Core
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+
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+    void virtual data_(
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+        void const * data,
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+        GLenum       target,
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+        GLenum       format,
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+        GLenum       type
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+    ) override;
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+};
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+
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+
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+/// Special member functions
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+
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+inline GLTexture3D::GLTexture3D(
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+    std::string object_label,
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+    Size        size,
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+    GLenum      internal_format,
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+    GLenum      wrap,
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+    GLenum      min_filter,
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+    GLenum      mag_filter
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+)
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+:
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+    GLTextureND(
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+        std::move(object_label),
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+        GL_TEXTURE_3D,
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+        GL_TEXTURE_BINDING_3D,
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+        GL_MAX_3D_TEXTURE_SIZE,
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+        size,
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+        internal_format,
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+        wrap,
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+        min_filter,
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+        mag_filter
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+    )
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+{
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+    try
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+    {
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+        glTexImage3D(
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+            target_, 0,
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+            (GLint)internal_format,
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+            size[0], size[1], size[2], 0,
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+            GL_RED, GL_UNSIGNED_BYTE, nullptr
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+        );
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+        check_error_(glGetError());
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+    }
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+    catch (...)
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+    {
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+        fail_action_("create");
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+    }
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+}
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+
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+/// Core
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+
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+inline GLTexture3D const & GLTexture3D::empty()
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+{
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+    return empty_<GLTexture3D>();
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+}
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+
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+inline void GLTexture3D::data_(
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+    void const * data,
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+    GLenum       target,
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+    GLenum       format,
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+    GLenum       type
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+)
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+{
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+    glTexSubImage3D(
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+        target, 0,
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+        0, 0, 0,
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+        size()[0], size()[1], size()[2],
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+        format, type, data
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+    );
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+}
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+
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+
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+#endif // GLTEXTURE3D_HPP_