Rearrange soucre files into subdirectories

[libs/gl.git] / source / core / renderbuffer.cpp

diff --git a/source/core/renderbuffer.cpp b/source/core/renderbuffer.cpp
new file mode 100644 (file)
index 0000000..e86a97a
--- /dev/null
+++ b/source/core/renderbuffer.cpp
@@ -0,0 +1,82 @@
+#include <msp/gl/extensions/arb_direct_state_access.h>
+#include <msp/gl/extensions/ext_framebuffer_multisample.h>
+#include <msp/gl/extensions/ext_framebuffer_object.h>
+#include "misc.h"
+#include "renderbuffer.h"
+
+using namespace std;
+
+namespace Msp {
+namespace GL {
+
+Renderbuffer::Renderbuffer()
+{
+       static Require _req(EXT_framebuffer_object);
+
+       if(ARB_direct_state_access)
+               glCreateRenderbuffers(1, &id);
+       else
+               glGenRenderbuffers(1, &id);
+}
+
+Renderbuffer::~Renderbuffer()
+{
+       glDeleteRenderbuffers(1, &id);
+}
+
+void Renderbuffer::storage(PixelFormat fmt, unsigned wd, unsigned ht)
+{
+       require_pixelformat(fmt);
+       width = wd;
+       height = ht;
+       if(ARB_direct_state_access)
+               glNamedRenderbufferStorage(id, fmt, width, height);
+       else
+       {
+               BindRestore _bind(this);
+               glRenderbufferStorage(GL_RENDERBUFFER, fmt, width, height);
+       }
+}
+
+unsigned Renderbuffer::get_max_samples()
+{
+       static unsigned max_samples = (EXT_framebuffer_multisample ? get_i(GL_MAX_SAMPLES) : 0);
+       return max_samples;
+}
+
+void Renderbuffer::storage_multisample(unsigned samples, PixelFormat fmt, unsigned wd, unsigned ht)
+{
+       if(!samples)
+               return storage(fmt, wd, ht);
+
+       static Require _req(EXT_framebuffer_multisample);
+       if(samples>get_max_samples())
+               throw out_of_range("Renderbuffer::storage_multisample");
+
+       require_pixelformat(fmt);
+
+       width = wd;
+       height = ht;
+       if(ARB_direct_state_access)
+               glNamedRenderbufferStorageMultisample(id, samples, fmt, width, height);
+       else
+       {
+               BindRestore _bind(this);
+               glRenderbufferStorageMultisample(GL_RENDERBUFFER, samples, fmt, width, height);
+       }
+}
+
+void Renderbuffer::bind() const
+{
+       if(set_current(this))
+               glBindRenderbuffer(GL_RENDERBUFFER, id);
+}
+
+void Renderbuffer::unbind()
+{
+       if(set_current(0))
+               glBindRenderbuffer(GL_RENDERBUFFER, 0);
+}
+
+} // namespace GL
+} // namespace Msp