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framebuffer_spark: implement setBlendLevel()

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This commit is contained in:
Stefan Seyfried
2012-07-07 19:37:50 +02:00
parent 770ab77eac
commit d3920eb21d
1 changed files with 18 additions and 20 deletions
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38
src/driver/framebuffer_spark.cpp
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@@ -459,30 +459,28 @@ void CFrameBuffer::setTransparency( int /*tr*/ )
{
}
void CFrameBuffer::setBlendMode(uint8_t /*mode*/)
/* original interfaceL: 1 == pixel alpha, 2 == global alpha premultiplied */
void CFrameBuffer::setBlendMode(uint8_t mode)
{
#if 0
//g.use_global_alpha = (mode == 2); /* 1 == pixel alpha, 2 == global alpha */
if (ioctl(fd, FBIO_SETBLENDMODE, mode))
printf("FBIO_SETBLENDMODE failed.\n");
#endif
/* mode = 1 => reset to no extra transparency */
if (mode == 1)
setBlendLevel(0);
}
void CFrameBuffer::setBlendLevel(int /*level*/)
/* level = 100 -> transparent, level = 0 -> nontransperent */
void CFrameBuffer::setBlendLevel(int level)
{
#if 0
//printf("CFrameBuffer::setBlendLevel %d\n", level);
unsigned char value = 0xFF;
if((level >= 0) && (level <= 100))
value = convertSetupAlpha2Alpha(level);
if (ioctl(fd, FBIO_SETOPACITY, value))
printf("FBIO_SETOPACITY failed.\n");
#if 1
if(level == 100) // TODO: sucks.
usleep(20000);
#endif
#endif
struct stmfbio_var_screeninfo_ex v;
memset(&v, 0, sizeof(v));
/* set to 0 already...
v.layerid = 0;
v.activate = STMFBIO_ACTIVATE_IMMEDIATE; // == 0
v.premultiplied_alpha = 0;
*/
v.caps = STMFBIO_VAR_CAPS_OPACITY | STMFBIO_VAR_CAPS_PREMULTIPLIED;
v.opacity = 0xff - (level * 0xff / 100);
if (ioctl(fd, STMFBIO_SET_VAR_SCREENINFO_EX, &v) < 0)
perror("[fb:setBlendLevel] STMFBIO");
}
void CFrameBuffer::setAlphaFade(int in, int num, int tr)