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Simplify Framebuffer::Session interface

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This patch removes the 'Framebuffer::Session::release()' function from
the interface to make the mode-change protocol consistent with the way
the Rom_session interface handles ROM-module changes. That is, the
client acknowledges the release of its current dataspace by requesting a
new dataspace via the 'Framebuffer::Session::dataspace()' function.

Fixes #1057
This commit is contained in:
Norman Feske 2014-02-11 17:17:55 +01:00
parent a61e278cec
commit 6525ec5951
16 changed files with 12 additions and 54 deletions
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2
demo/src/server/liquid_framebuffer/services.cc
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@ -287,8 +287,6 @@ namespace Framebuffer
return _window_content.fb_ds_cap();
}
void release() { }
Mode mode() const
{
return Mode(_window_content.mode_size().w(),

6
libports/src/app/qt5/qt_avplay/framebuffer_session_component.cc
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@ -64,12 +64,6 @@ namespace Framebuffer {
}
void Session_component::release()
{
_framebuffer.release();
}
Mode Session_component::mode() const
{
return _framebuffer.mode();

1
libports/src/app/qt5/qt_avplay/framebuffer_session_component.h
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@ -46,7 +46,6 @@ namespace Framebuffer {
int max_height = 0);
Genode::Dataspace_capability dataspace();
void release();
Mode mode() const;
void mode_sigh(Genode::Signal_context_capability sigh_cap);
void refresh(int x, int y, int w, int h);

2
libports/src/lib/qt5/qtbase/src/plugins/platforms/nitpicker/window_slave_policy.h
View File

@ -99,8 +99,6 @@ class Window_slave_policy : public Genode::Slave_policy
if (_framebuffer)
Genode::env()->rm_session()->detach(_framebuffer);
session_client.release();
Dataspace_capability framebuffer_ds = session_client.dataspace();
if (framebuffer_ds.valid()) {
_framebuffer = Genode::env()->rm_session()->attach(framebuffer_ds);

2
os/include/framebuffer_session/client.h
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@ -27,8 +27,6 @@ namespace Framebuffer {
Genode::Dataspace_capability dataspace() {
return call<Rpc_dataspace>(); }
void release() { call<Rpc_release>(); }
Mode mode() const { return call<Rpc_mode>(); }
void mode_sigh(Genode::Signal_context_capability sigh) {

31
os/include/framebuffer_session/framebuffer_session.h
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@ -70,21 +70,18 @@ namespace Framebuffer {
/**
* Request dataspace representing the logical frame buffer
*
* By calling this function, the framebuffer client enables the server
* to reallocate the framebuffer dataspace (e.g., on mode changes).
* Hence, prior calling this function, the client should make sure to
* have detached the previously requested dataspace from its local
* address space.
*/
virtual Genode::Dataspace_capability dataspace() = 0;
/**
* Release framebuffer, free dataspace
*
* By calling this function, the framebuffer client enables the server
* to reallocate the framebuffer dataspace on mode changes. Prior
* calling this function, the client should have detached the dataspace
* from its local address space.
*/
virtual void release() = 0;
/**
* Request current display-mode properties
* Request display-mode properties of the framebuffer ready to be
* obtained via the 'dataspace()' function
*/
virtual Mode mode() const = 0;
@ -95,11 +92,9 @@ namespace Framebuffer {
* fly. For example, a virtual framebuffer presented in a window may
* get resized according to the window dimensions. By installing a
* signal handler for mode changes, the framebuffer client can respond
* to such changes. From the client's perspective, the original mode
* stays in effect until the client calls 'release()'. After having
* released the framebuffer, the new mode can be obtained using the
* 'mode()' function and a new framebuffer dataspace can be requested
* by calling 'dataspace()'.
* to such changes. The new mode can be obtained using the 'mode()'
* function. However, from the client's perspective, the original mode
* stays in effect until the it calls 'dataspace()' again.
*/
virtual void mode_sigh(Genode::Signal_context_capability sigh) = 0;
@ -116,13 +111,11 @@ namespace Framebuffer {
*********************/
GENODE_RPC(Rpc_dataspace, Genode::Dataspace_capability, dataspace);
GENODE_RPC(Rpc_release, void, release);
GENODE_RPC(Rpc_mode, Mode, mode);
GENODE_RPC(Rpc_refresh, void, refresh, int, int, int, int);
GENODE_RPC(Rpc_mode_sigh, void, mode_sigh, Genode::Signal_context_capability);
GENODE_RPC_INTERFACE(Rpc_dataspace, Rpc_release, Rpc_mode,
Rpc_mode_sigh, Rpc_refresh);
GENODE_RPC_INTERFACE(Rpc_dataspace, Rpc_mode, Rpc_mode_sigh, Rpc_refresh);
};
}

2
os/include/platform/imx53/imx_framebuffer_session/client.h
View File

@ -28,8 +28,6 @@ namespace Framebuffer {
Genode::Dataspace_capability dataspace() {
return call<Rpc_dataspace>(); }
void release() { call<Rpc_release>(); }
Mode mode() const { return call<Rpc_mode>(); }
void mode_sigh(Genode::Signal_context_capability sigh) {

2
os/src/drivers/framebuffer/exynos5/main.cc
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@ -90,8 +90,6 @@ class Framebuffer::Session_component
Dataspace_capability dataspace() { return _ds; }
void release() { }
Mode mode() const
{
return Mode(_width, _height, _convert_format(_format));

1
os/src/drivers/framebuffer/imx53/main.cc
View File

@ -69,7 +69,6 @@ class Framebuffer::Session_component :
**************************************/
Dataspace_capability dataspace() { return _buffered ? _bb_ds : _fb_ds; }
void release() { }
Mode mode() const { return _mode; }
void mode_sigh(Genode::Signal_context_capability) { }

2
os/src/drivers/framebuffer/omap4/main.cc
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@ -77,8 +77,6 @@ class Framebuffer::Session_component : public Genode::Rpc_object<Framebuffer::Se
Dataspace_capability dataspace() { return _ds; }
void release() { }
Mode mode() const
{
return Mode(_width,

2
os/src/drivers/framebuffer/pl11x/main.cc
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@ -157,8 +157,6 @@ namespace Framebuffer
Genode::Dataspace_capability dataspace() { return _fb_ds_cap; }
void release() { }
Mode mode() const { return Mode(SCR_WIDTH, SCR_HEIGHT, Mode::RGB565); }
void mode_sigh(Genode::Signal_context_capability) { }

2
os/src/drivers/framebuffer/rpi/main.cc
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@ -47,8 +47,6 @@ class Framebuffer::Session_component : public Genode::Rpc_object<Framebuffer::Se
Dataspace_capability dataspace() { return _fb_mem.cap(); }
void release() { }
Mode mode() const
{
return Mode(_width, _height, Mode::RGB565);

2
os/src/drivers/framebuffer/sdl/fb_sdl.cc
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@ -61,8 +61,6 @@ namespace Framebuffer {
Genode::Dataspace_capability dataspace() { return fb_ds_cap; }
void release() { }
Mode mode() const { return _mode; }
void mode_sigh(Genode::Signal_context_capability) { }

2
os/src/server/nitpicker/main.cc
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@ -369,8 +369,6 @@ class Framebuffer::Session_component : public Genode::Rpc_object<Session>
return _buffer ? _buffer->ds_cap() : Genode::Ram_dataspace_capability();
}
void release() { }
Mode mode() const
{
return _mode;

6
qt4/src/app/qt_avplay/framebuffer_session_component.cc
View File

@ -64,12 +64,6 @@ namespace Framebuffer {
}
void Session_component::release()
{
_framebuffer.release();
}
Mode Session_component::mode() const
{
return _framebuffer.mode();

1
qt4/src/app/qt_avplay/framebuffer_session_component.h
View File

@ -46,7 +46,6 @@ namespace Framebuffer {
int max_height = 0);
Genode::Dataspace_capability dataspace();
void release();
Mode mode() const;
void mode_sigh(Genode::Signal_context_capability sigh_cap);
void refresh(int x, int y, int w, int h);