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SSD1306 fixes #549

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SSD1306 fixes #549

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71f374f
SSD1306 fix MODE_VERT
mar0x Apr 8, 2025
f509411
SSD1306 rotate view
mar0x Apr 8, 2025
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4 changes: 2 additions & 2 deletions examples/parts/ssd1306_glut.c
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Original file line number Diff line number Diff line change
Expand Up @@ -95,7 +95,7 @@ ssd1306_gl_put_pixel_column (uint8_t block_pixel_column, float pixel_opacity,

for (int i = 0; i < 8; ++i)
{
if (block_pixel_column & (1 << i))
if (block_pixel_column & (1 << (7 - i)))
{
glVertex2f (pix_size_g, pix_size_g * (i + 1));
glVertex2f (0, pix_size_g * (i + 1));
Expand Down Expand Up @@ -123,7 +123,7 @@ ssd1306_gl_draw_pixels (ssd1306_t *part, float opacity, uint8_t invert)
glPushMatrix ();
for (int c = 0; c < part->columns; c++)
{
uint8_t vram_byte = ssd1306_gl_get_vram_byte (part, p, c);
uint8_t vram_byte = ssd1306_gl_get_vram_byte (part, part->pages - p - 1, part->columns - c - 1);
ssd1306_gl_put_pixel_column (vram_byte, opacity, invert);
// Next column
glTranslatef (pix_size_g + pix_gap_g, 0, 0);
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4 changes: 2 additions & 2 deletions examples/parts/ssd1306_virt.c
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Original file line number Diff line number Diff line change
Expand Up @@ -42,10 +42,10 @@ ssd1306_write_data (ssd1306_t *part)
case SSD1306_ADDR_MODE_VERT:
if (++(part->cursor.page) > part->write_cursor_end.page)
{
part->cursor.page = part->write_cursor_start.column;
part->cursor.page = part->write_cursor_start.page;
if (++(part->cursor.column) > part->write_cursor_end.column)
{
part->cursor.column = part->write_cursor_start.page;
part->cursor.column = part->write_cursor_start.column;
}
}
break;
Expand Down