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Print images upscaled

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fruchti 2018-08-23 13:39:45 +02:00
parent 3c84665f50
commit 0774ed43f5
5 changed files with 20 additions and 12 deletions
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24
src/print.c
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@ -39,27 +39,35 @@ void Print_Text(const char *text, const Font_t *font)
}
// Width needs to be divisible by 8
void Print_Image(const uint8_t *data, int width, int height)
void Print_Image(const uint8_t *data, int width, int height, int scale)
{
int currentline = 0;
while(height)
{
int lines = PRINT_BUFFER_LINES;
int lines = PRINT_BUFFER_LINES / scale;
if(height < lines)
{
lines = height;
}
for(int i = 0; i < lines; i++)
memset(Print_Buffer, 0, sizeof(Print_Buffer));
for(int i = 0; i < lines * scale; i++)
{
memcpy(Print_Buffer + i * LTP1245_LINE_BYTES,
data + currentline * width / 8,
width / 8);
memset(Print_Buffer + width / 8, 0, LTP1245_LINE_BYTES - width / 8);
for(int j = 0; j < width * scale; j++)
{
int black = data[(currentline / scale * width + j / scale) / 8]
& (0x80 >> ((j / scale) % 8));
if(black)
{
Print_Buffer[i * LTP1245_LINE_BYTES + j / 8] |=
(0x80 >> (j % 8));
}
}
currentline++;
}
LTP1245_Print(Print_Buffer, lines);
LTP1245_Print(Print_Buffer, lines * scale);
height -= lines;
}