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path: root/silx/gui/_glutils/FramebufferTexture.py
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Diffstat (limited to 'silx/gui/_glutils/FramebufferTexture.py')
-rw-r--r--silx/gui/_glutils/FramebufferTexture.py78
1 files changed, 39 insertions, 39 deletions
diff --git a/silx/gui/_glutils/FramebufferTexture.py b/silx/gui/_glutils/FramebufferTexture.py
index b01eb41..cc05080 100644
--- a/silx/gui/_glutils/FramebufferTexture.py
+++ b/silx/gui/_glutils/FramebufferTexture.py
@@ -66,49 +66,48 @@ class FramebufferTexture(object):
self._previousFramebuffer = 0 # Used by with statement
self._name = gl.glGenFramebuffers(1)
- gl.glBindFramebuffer(gl.GL_FRAMEBUFFER, self._name)
-
- # Attachments
- gl.glFramebufferTexture2D(gl.GL_FRAMEBUFFER,
- gl.GL_COLOR_ATTACHMENT0,
- gl.GL_TEXTURE_2D,
- self._texture.name,
- 0)
-
- height, width = self._texture.shape
-
- if stencilFormat is not None:
- self._stencilId = gl.glGenRenderbuffers(1)
- gl.glBindRenderbuffer(gl.GL_RENDERBUFFER, self._stencilId)
- gl.glRenderbufferStorage(gl.GL_RENDERBUFFER,
- stencilFormat,
- width, height)
- gl.glFramebufferRenderbuffer(gl.GL_FRAMEBUFFER,
- gl.GL_STENCIL_ATTACHMENT,
- gl.GL_RENDERBUFFER,
- self._stencilId)
- else:
- self._stencilId = None
- if depthFormat is not None:
- if self._stencilId and depthFormat in self._PACKED_FORMAT:
- self._depthId = self._stencilId
- else:
- self._depthId = gl.glGenRenderbuffers(1)
- gl.glBindRenderbuffer(gl.GL_RENDERBUFFER, self._depthId)
+ with self: # Bind FBO
+ # Attachments
+ gl.glFramebufferTexture2D(gl.GL_FRAMEBUFFER,
+ gl.GL_COLOR_ATTACHMENT0,
+ gl.GL_TEXTURE_2D,
+ self._texture.name,
+ 0)
+
+ height, width = self._texture.shape
+
+ if stencilFormat is not None:
+ self._stencilId = gl.glGenRenderbuffers(1)
+ gl.glBindRenderbuffer(gl.GL_RENDERBUFFER, self._stencilId)
gl.glRenderbufferStorage(gl.GL_RENDERBUFFER,
- depthFormat,
+ stencilFormat,
width, height)
- gl.glFramebufferRenderbuffer(gl.GL_FRAMEBUFFER,
- gl.GL_DEPTH_ATTACHMENT,
- gl.GL_RENDERBUFFER,
- self._depthId)
- else:
- self._depthId = None
+ gl.glFramebufferRenderbuffer(gl.GL_FRAMEBUFFER,
+ gl.GL_STENCIL_ATTACHMENT,
+ gl.GL_RENDERBUFFER,
+ self._stencilId)
+ else:
+ self._stencilId = None
+
+ if depthFormat is not None:
+ if self._stencilId and depthFormat in self._PACKED_FORMAT:
+ self._depthId = self._stencilId
+ else:
+ self._depthId = gl.glGenRenderbuffers(1)
+ gl.glBindRenderbuffer(gl.GL_RENDERBUFFER, self._depthId)
+ gl.glRenderbufferStorage(gl.GL_RENDERBUFFER,
+ depthFormat,
+ width, height)
+ gl.glFramebufferRenderbuffer(gl.GL_FRAMEBUFFER,
+ gl.GL_DEPTH_ATTACHMENT,
+ gl.GL_RENDERBUFFER,
+ self._depthId)
+ else:
+ self._depthId = None
- assert gl.glCheckFramebufferStatus(gl.GL_FRAMEBUFFER) == \
- gl.GL_FRAMEBUFFER_COMPLETE
- gl.glBindFramebuffer(gl.GL_FRAMEBUFFER, 0)
+ assert (gl.glCheckFramebufferStatus(gl.GL_FRAMEBUFFER) ==
+ gl.GL_FRAMEBUFFER_COMPLETE)
@property
def shape(self):
@@ -143,6 +142,7 @@ class FramebufferTexture(object):
def __exit__(self, exctype, excvalue, traceback):
gl.glBindFramebuffer(gl.GL_FRAMEBUFFER, self._previousFramebuffer)
+ self._previousFramebuffer = None
def discard(self):
"""Delete associated OpenGL resources including texture"""