diff options
Diffstat (limited to 'firmware/target/arm/s3c2440/gigabeat-fx/lcd-meg-fx.c')
| -rw-r--r-- | firmware/target/arm/s3c2440/gigabeat-fx/lcd-meg-fx.c | 45 |
1 files changed, 37 insertions, 8 deletions
diff --git a/firmware/target/arm/s3c2440/gigabeat-fx/lcd-meg-fx.c b/firmware/target/arm/s3c2440/gigabeat-fx/lcd-meg-fx.c index ab7c91437c..91b2eae986 100644 --- a/firmware/target/arm/s3c2440/gigabeat-fx/lcd-meg-fx.c +++ b/firmware/target/arm/s3c2440/gigabeat-fx/lcd-meg-fx.c @@ -9,6 +9,7 @@ static volatile bool lcd_on = true; volatile bool lcd_poweroff = false; +static unsigned lcd_yuv_options = 0; /* ** These are imported from lcd-16bit.c */ @@ -248,11 +249,22 @@ void lcd_bitmap_transparent_part(const fb_data *src, int src_x, int src_y, ); } +void lcd_yuv_set_options(unsigned options) +{ + lcd_yuv_options = options; +} + /* Line write helper function for lcd_yuv_blit. Write two lines of yuv420. */ extern void lcd_write_yuv420_lines(fb_data *dst, unsigned char const * const src[3], int width, int stride); +extern void lcd_write_yuv420_lines_odither(fb_data *dst, + unsigned char const * const src[3], + int width, + int stride, + int x_screen, /* To align dither pattern */ + int y_screen); /* Performance function to blit a YUV bitmap directly to the LCD */ /* For the Gigabeat - show it rotated */ /* So the LCD_WIDTH is now the height */ @@ -272,22 +284,39 @@ void lcd_yuv_blit(unsigned char * const src[3], width &= ~1; height >>= 1; - fb_data *dst = (fb_data*)FRAME + x * LCD_WIDTH + (LCD_WIDTH - y) - 1; + y = LCD_WIDTH - 1 - y; + fb_data *dst = (fb_data*)FRAME + x * LCD_WIDTH + y; z = stride*src_y; yuv_src[0] = src[0] + z + src_x; yuv_src[1] = src[1] + (z >> 2) + (src_x >> 1); yuv_src[2] = src[2] + (yuv_src[1] - src[1]); - do + if (lcd_yuv_options & LCD_YUV_DITHER) + { + do + { + lcd_write_yuv420_lines_odither(dst, yuv_src, width, stride, y, x); + yuv_src[0] += stride << 1; /* Skip down two luma lines */ + yuv_src[1] += stride >> 1; /* Skip down one chroma line */ + yuv_src[2] += stride >> 1; + dst -= 2; + y -= 2; + } + while (--height > 0); + } + else { - lcd_write_yuv420_lines(dst, yuv_src, width, stride); - yuv_src[0] += stride << 1; /* Skip down two luma lines */ - yuv_src[1] += stride >> 1; /* Skip down one chroma line */ - yuv_src[2] += stride >> 1; - dst -= 2; + do + { + lcd_write_yuv420_lines(dst, yuv_src, width, stride); + yuv_src[0] += stride << 1; /* Skip down two luma lines */ + yuv_src[1] += stride >> 1; /* Skip down one chroma line */ + yuv_src[2] += stride >> 1; + dst -= 2; + } + while (--height > 0); } - while (--height > 0); } void lcd_set_contrast(int val) { |