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OSD: use linebuffer instead of framebuffer for stars

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This commit is contained in:
Gyorgy Szombathelyi 2022-10-28 14:06:21 +02:00
parent c891f2bc5d
commit c162df2aea
1 changed files with 9 additions and 22 deletions
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31
osd.c
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@ -65,23 +65,7 @@ struct star
struct star stars[64];
char framebuffer[8][256];
void framebuffer_clear()
{
int i,j;
for(i=0;i<8;++i)
{
for(j=0;j<256;++j)
{
framebuffer[i][j]=0;
}
}
}
void framebuffer_plot(int x,int y)
{
framebuffer[y/8][x]|=(1<<(y & 7));
}
static char linebuffer[256];
static int quickrand()
{
@ -112,7 +96,6 @@ void StarsInit()
void StarsUpdate()
{
framebuffer_clear();
int i;
for(i=0;i<64;++i)
{
@ -125,8 +108,7 @@ void StarsUpdate()
stars[i].y=(quickrand()%56)<<4;
stars[i].dx=-(quickrand()&7)-3;
stars[i].dy=0;
}
framebuffer_plot(stars[i].x>>4,stars[i].y>>4);
}
}
}
@ -267,10 +249,15 @@ void OsdDrawLogo(unsigned char n, char row,char superimpose) {
// send all characters in string to OSD
if(superimpose) {
char *bg=framebuffer[n];
int j;
memset(linebuffer, 0, sizeof(linebuffer));
for (j=0; j<64; j++) {
if(stars[j].y>>7 == n) linebuffer[stars[j].x>>4] |= (1<<((stars[j].y>>4) & 7));
}
char *bg = linebuffer;
while (bytes) {
if(i==0) { // Render sidestripe
unsigned char j;
p = &titlebuffer[(7-n)*8];
spi16(0xffff);
for(j=0;j<8;j++) spi_n(255^*p++, 2);