Support binding individual mipmap levels of textures

[libs/gl.git] / source / backends / opengl / buffer_backend.cpp

diff --git a/source/backends/opengl/buffer_backend.cpp b/source/backends/opengl/buffer_backend.cpp
index ab78b1b5c3bd0b3b7fa63cb90e14d19ffc9de2f6..13944a86d439231e93603b84454fceed5f781900 100644 (file)
--- a/source/backends/opengl/buffer_backend.cpp
+++ b/source/backends/opengl/buffer_backend.cpp
@@ -6,14 +6,13 @@
 #include <msp/gl/extensions/oes_mapbuffer.h>
 #include "buffer.h"
 #include "buffer_backend.h"
+#include "device.h"
 
 using namespace std;
 
 namespace Msp {
 namespace GL {
 
-OpenGLBuffer *OpenGLBuffer::scratch_binding = 0;
-
 OpenGLBuffer::OpenGLBuffer()
 {
        static Require _req(ARB_vertex_buffer_object);
@@ -32,7 +31,7 @@ OpenGLBuffer::OpenGLBuffer(OpenGLBuffer &&other):
 
 OpenGLBuffer::~OpenGLBuffer()
 {
-       if(this==scratch_binding)
+       if(this==Device::get_current().get_state().scratch_buffer)
                unbind_scratch();
        if(id)
                glDeleteBuffers(1, &id);
@@ -91,7 +90,6 @@ void *OpenGLBuffer::map()
 
 bool OpenGLBuffer::unmap()
 {
-       // TODO check if it's mapped
        if(ARB_direct_state_access)
                return glUnmapNamedBuffer(id);
        else if(OES_mapbuffer)
@@ -116,6 +114,7 @@ void OpenGLBuffer::set_debug_name(const string &name)
 
 void OpenGLBuffer::bind_scratch()
 {
+       const OpenGLBuffer *&scratch_binding = Device::get_current().get_state().scratch_buffer;
        if(scratch_binding!=this)
        {
                glBindBuffer(GL_ARRAY_BUFFER, id);
@@ -125,6 +124,7 @@ void OpenGLBuffer::bind_scratch()
 
 void OpenGLBuffer::unbind_scratch()
 {
+       const OpenGLBuffer *&scratch_binding = Device::get_current().get_state().scratch_buffer;
        if(scratch_binding)
        {
                glBindBuffer(GL_ARRAY_BUFFER, 0);