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* Now supports setting a framebuffer offset as overlay address instead of a physical

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pointer (as needed by the G33 chipset).
* Minor debug output improvements.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23739 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2008-01-25 16:50:52 +00:00
parent 6761f5a660
commit f401eba4ae
1 changed files with 13 additions and 5 deletions
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18
src/add-ons/accelerants/intel_extreme/engine.cpp
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@ -15,9 +15,9 @@
#undef TRACE
//#define TRACE_ENGINE
#ifdef TRACE_ENGINE
extern "C" void _sPrintf(const char *format, ...);
# define TRACE(x) _sPrintf x
#else
# define TRACE(x) ;
@ -95,8 +95,15 @@ QueueCommands::PutOverlayFlip(uint32 mode, bool updateCoefficients)
MakeSpace(2);
Write(COMMAND_OVERLAY_FLIP | mode);
Write((uint32)gInfo->shared_info->physical_overlay_registers
| (updateCoefficients ? OVERLAY_UPDATE_COEFFICIENTS : 0));
uint32 registers;
if (gInfo->shared_info->overlay_offset != 0) {
// G33 does not need a physical address for the overlay registers
registers = gInfo->shared_info->overlay_offset;
} else
registers = (uint32)gInfo->shared_info->physical_overlay_registers;
Write(registers | (updateCoefficients ? OVERLAY_UPDATE_COEFFICIENTS : 0));
}
@ -104,6 +111,7 @@ void
QueueCommands::MakeSpace(uint32 size)
{
ASSERT((size & 1) == 0);
size *= sizeof(uint32);
bigtime_t start = system_time();
@ -119,7 +127,7 @@ QueueCommands::MakeSpace(uint32 size)
if (fRingBuffer.space_left < size) {
if (system_time() > start + 1000000LL) {
TRACE(("intel_extreme: engine stalled\n"));
TRACE(("intel_extreme: engine stalled, head %lx\n", head));
break;
}
spin(10);
@ -246,7 +254,7 @@ intel_wait_engine_idle(void)
if (system_time() > start + 1000000LL) {
// the engine seems to be locked up!
TRACE(("intel_extreme: engine locked up!\n"));
TRACE(("intel_extreme: engine locked up, head %lx!\n", head));
break;
}