fb_generic: add swidth variable, "stride in fb_pixel_t units"

this should allow to use fb_pixel_t pointer arithmetics more often
instead of byte pointers
This commit is contained in:
Stefan Seyfried
2017-02-15 20:30:52 +01:00
committed by M. Liebmann
parent b7110faaf6
commit 7c7d5f08dd
8 changed files with 12 additions and 9 deletions

View File

@@ -54,6 +54,7 @@ void CFbAccelGLFB::init(const char *)
}
screeninfo = glfb->getScreenInfo();
stride = 4 * screeninfo.xres;
swidth = screeninfo.xres;
available = glfb->getOSDBuffer()->size(); /* allocated in glfb constructor */
lbb = lfb = reinterpret_cast<fb_pixel_t*>(glfb->getOSDBuffer()->data());
@@ -135,7 +136,7 @@ int CFbAccelGLFB::setMode(unsigned int, unsigned int, unsigned int)
int needmem = stride * yRes * 2;
if (available >= needmem)
{
backbuffer = lfb + stride / sizeof(fb_pixel_t) * yRes;
backbuffer = lfb + swidth * yRes;
return 0;
}
fprintf(stderr, LOGTAG " not enough FB memory (have %d, need %d)\n", available, needmem);