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author Aaron Giles <aaron@aarongiles.com>2010-01-18 09:34:43 +0000
committer Aaron Giles <aaron@aarongiles.com>2010-01-18 09:34:43 +0000
commite738b79785852050ce8b83e369a7fc4dd46a071b (patch)
tree1ac39e9f40790b375c57fea4e5d56ca8d132babc /src/mame/drivers/alg.c
parent3f87f47a2ecdccb9d9627d0d52b76f262becb949 (diff)
Correct a long-standing design flaw: device configuration state
is now separate from runtime device state. I have larger plans for devices, so there is some temporary scaffolding to hold everything together, but this first step does separate things out. There is a new class 'running_device' which represents the state of a live device. A list of these running_devices sits in machine->devicelist and is created when a running_machine is instantiated. To access the configuration state, use device->baseconfig() which returns a reference to the configuration. The list of running_devices in machine->devicelist has a 1:1 correspondance with the list of device configurations in machine->config->devicelist, and most navigation options work equally on either (scanning by class, type, etc.) For the most part, drivers will now deal with running_device objects instead of const device_config objects. In fact, in order to do this patch, I did the following global search & replace: const device_config -> running_device device->static_config -> device->baseconfig().static_config device->inline_config -> device->baseconfig().inline_config and then fixed up the compiler errors that fell out. Some specifics: Removed device_get_info_* functions and replaced them with methods called get_config_*. Added methods for get_runtime_* to access runtime state from the running_device. DEVICE_GET_INFO callbacks are only passed a device_config *. This means they have no access to the token or runtime state at all. For most cases this is fine. Added new DEVICE_GET_RUNTIME_INFO callback that is passed the running_device for accessing data that is live at runtime. In the future this will go away to make room for a cleaner mechanism. Cleaned up the handoff of memory regions from the memory subsystem to the devices.
Diffstat (limited to 'src/mame/drivers/alg.c')
-rw-r--r--src/mame/drivers/alg.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mame/drivers/alg.c b/src/mame/drivers/alg.c
index 5abffca8ca1..edb903b8b32 100644
--- a/src/mame/drivers/alg.c
+++ b/src/mame/drivers/alg.c
@@ -28,7 +28,7 @@
#include "machine/6526cia.h"
-static const device_config *laserdisc;
+static running_device *laserdisc;
static emu_timer *serial_timer;
static UINT8 serial_timer_active;
static UINT16 input_select;
@@ -43,7 +43,7 @@ static TIMER_CALLBACK( response_timer );
*
*************************************/
-static int get_lightgun_pos(const device_config *screen, int player, int *x, int *y)
+static int get_lightgun_pos(running_device *screen, int player, int *x, int *y)
{
const rectangle *visarea = video_screen_get_visible_area(screen);