namespace GL {
/**
-Describes a single attachment of a framebuffer. The values are bitfields laid
-as follows:
+Describes a single attachment of a framebuffer, including the type and index
+of the attachment point and the format of the attached texture.
+
+The values are bitfields laid as follows:
nnnn nn_f _sss _ccc
│ │ │ └╴Number of components
└────────────╴Attachment index
This information is presented for internal documentation purposes only; it is
-inadvisable for programs to rely on it.
+inadvisable for applications to rely on it.
*/
-enum FrameAttachment
+enum FrameAttachment: std::uint16_t
{
COLOR_ATTACHMENT = 0x0014,
DEPTH_ATTACHMENT = 0xF941,
private:
enum { MAX_ATTACHMENTS = 7 };
- std::uint8_t count;
- std::uint8_t samples;
- std::uint16_t attachments[MAX_ATTACHMENTS];
+ std::uint8_t count = 0;
+ std::uint8_t samples = 0;
+ FrameAttachment attachments[MAX_ATTACHMENTS];
public:
- FrameFormat();
+ FrameFormat() = default;
FrameFormat(FrameAttachment);
FrameFormat operator,(FrameAttachment) const;
unsigned size() const { return count; }
bool empty() const { return !count; }
- const std::uint16_t *begin() const { return attachments; }
- const std::uint16_t *end() const { return attachments+count; }
+ const FrameAttachment *begin() const { return attachments; }
+ const FrameAttachment *end() const { return attachments+count; }
int index(FrameAttachment) const;
};
inline FrameAttachment operator,(FrameAttachment fa, unsigned i)
{ return make_indexed_attachment(fa, i); }
-inline unsigned get_attach_point(std::uint16_t fa)
+inline unsigned get_attach_point(FrameAttachment fa)
{ return fa>>10; }
-PixelFormat get_attachment_pixelformat(std::uint16_t);
-
-GLenum get_gl_attachment(FrameAttachment);
+PixelFormat get_attachment_pixelformat(FrameAttachment);
} // namespace GL
} // namespace Msp
+#include "frameformat_backend.h"
+
#endif