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fbaccel: auto-blit, obsoleting the explicit blit() calls

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probably needs refining on some platforms
This commit is contained in:
Stefan Seyfried
2013-09-28 11:57:26 +02:00
parent cfadfe3ae9
commit 116aba09b0
3 changed files with 28 additions and 12 deletions
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31
src/driver/fbaccel.cpp
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@@ -57,6 +57,13 @@ extern GLFramebuffer *glfb;
#endif
#include <driver/abstime.h>
#include <system/set_threadname.h>
#if HAVE_COOL_HARDWARE || HAVE_TRIPLEDRAGON
#define NEED_BLIT_THREAD 0
#else
#define NEED_BLIT_THREAD 1
#endif
//#undef USE_NEVIS_GXA //FIXME
/*******************************************************************************/
@@ -185,6 +192,7 @@ void CFbAccel::waitForIdle(void)
CFbAccel::CFbAccel(CFrameBuffer *_fb)
{
blit_thread = false;
fb = _fb;
lastcol = 0xffffffff;
lbb = fb->lfb; /* the memory area to draw to... */
@@ -245,9 +253,6 @@ CFbAccel::CFbAccel(CFrameBuffer *_fb)
return;
}
#endif
#if HAVE_SPARK_HARDWARE || HAVE_AZBOX_HARDWARE
OpenThreads::Thread::start();
#endif
#ifdef USE_NEVIS_GXA
/* Open /dev/mem for HW-register access */
@@ -269,18 +274,21 @@ CFbAccel::CFbAccel(CFrameBuffer *_fb)
/* TODO: what to do here? does this really happen? */
;
#endif /* USE_NEVIS_GXA */
#if NEED_BLIT_THREAD
/* start the autoblit-thread (run() function) */
OpenThreads::Thread::start();
#endif
};
CFbAccel::~CFbAccel()
{
#if HAVE_SPARK_HARDWARE || HAVE_AZBOX_HARDWARE
if (blit_thread)
{
blit_thread = false;
blit(); /* wakes up the thread */
OpenThreads::Thread::join();
}
#endif
#if HAVE_SPARK_HARDWARE
if (backbuffer)
{
@@ -434,6 +442,7 @@ void CFbAccel::paintRect(const int x, const int y, const int dx, const int dy, c
line++;
}
#endif
blit();
}
void CFbAccel::paintPixel(const int x, const int y, const fb_pixel_t col)
@@ -557,6 +566,7 @@ void CFbAccel::paintLine(int xa, int ya, int xb, int yb, const fb_pixel_t col)
paintPixel(x, y, col);
}
}
blit();
#endif
}
@@ -663,6 +673,7 @@ void CFbAccel::blit2FB(void *fbbuff, uint32_t width, uint32_t height, uint32_t x
}
d += fb->stride;
}
blit();
#if 0
for(int i = 0; i < yc; i++){
memmove(clfb + (i + yoff)*stride + xoff*4, ip + (i + yp)*width + xp, xc*4);
@@ -731,22 +742,28 @@ void CFbAccel::run()
{
printf("CFbAccel::run start\n");
time_t last_blit = 0;
bool finished = false; /* one last blit after everything is done */
blit_pending = false;
blit_thread = true;
blit_mutex.lock();
set_threadname("fb::autoblit");
while (blit_thread) {
if (blit_pending)
blit_cond.wait(&blit_mutex, BLIT_INTERVAL+1);
// printf("blit_pending: %d finish: %d\n", blit_pending, finish);
if (blit_pending || finished)
blit_cond.wait(&blit_mutex, BLIT_INTERVAL);
else
blit_cond.wait(&blit_mutex);
time_t now = time_monotonic_ms();
if (now - last_blit < BLIT_INTERVAL)
{
blit_pending = true;
finished = false;
//printf("CFbAccel::run: skipped, time %ld\n", now - last_blit);
}
else
{
/* we timed out => add one more blit, just to make sure */
finished = !finished;
blit_pending = false;
blit_mutex.unlock();
_blit();