From d7802133fd9d5bf2fddfcc26cf10cd17285b4efd Mon Sep 17 00:00:00 2001 From: Rafaël Carré Date: Sat, 3 Dec 2011 21:39:33 +0000 Subject: lcd_blit_yuv: move from sdl driver to lcd16bit-common Declare as weak, so it can be overridden by targets git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31127 a1c6a512-1295-4272-9138-f99709370657 --- firmware/drivers/lcd-16bit.c | 205 +++++++++++++++++++++++++++++++- firmware/target/hosted/sdl/lcd-bitmap.c | 205 -------------------------------- 2 files changed, 204 insertions(+), 206 deletions(-) diff --git a/firmware/drivers/lcd-16bit.c b/firmware/drivers/lcd-16bit.c index 28c3285a9c..300dbba9ac 100644 --- a/firmware/drivers/lcd-16bit.c +++ b/firmware/drivers/lcd-16bit.c @@ -913,10 +913,213 @@ void lcd_bitmap_transparent(const fb_data *src, int x, int y, lcd_bitmap_transparent_part(src, 0, 0, width, x, y, width, height); } +/** + * |R| |1.000000 -0.000001 1.402000| |Y'| + * |G| = |1.000000 -0.334136 -0.714136| |Pb| + * |B| |1.000000 1.772000 0.000000| |Pr| + * Scaled, normalized, rounded and tweaked to yield RGB 565: + * |R| |74 0 101| |Y' - 16| >> 9 + * |G| = |74 -24 -51| |Cb - 128| >> 8 + * |B| |74 128 0| |Cr - 128| >> 9 + */ +#define YFAC (74) +#define RVFAC (101) +#define GUFAC (-24) +#define GVFAC (-51) +#define BUFAC (128) + +static inline int clamp(int val, int min, int max) +{ + if (val < min) + val = min; + else if (val > max) + val = max; + return val; +} + +__attribute__((weak)) void lcd_yuv_set_options(unsigned options) +{ + (void)options; +} + +/* Draw a partial YUV colour bitmap - similiar behavior to lcd_blit_yuv + in the core */ + +__attribute__((weak)) void lcd_blit_yuv(unsigned char * const src[3], + int src_x, int src_y, int stride, + int x, int y, int width, int height) +{ + const unsigned char *ysrc, *usrc, *vsrc; + int linecounter; + fb_data *dst, *row_end; + long z; + + /* width and height must be >= 2 and an even number */ + width &= ~1; + linecounter = height >> 1; + +#if LCD_WIDTH >= LCD_HEIGHT + dst = &lcd_framebuffer[y][x]; + row_end = dst + width; +#else + dst = &lcd_framebuffer[x][LCD_WIDTH - y - 1]; + row_end = dst + LCD_WIDTH * width; +#endif + + z = stride * src_y; + ysrc = src[0] + z + src_x; + usrc = src[1] + (z >> 2) + (src_x >> 1); + vsrc = src[2] + (usrc - src[1]); + + /* stride => amount to jump from end of last row to start of next */ + stride -= width; + + /* upsampling, YUV->RGB conversion and reduction to RGB565 in one go */ + + do + { + do + { + int y, cb, cr, rv, guv, bu, r, g, b; + + y = YFAC*(*ysrc++ - 16); + cb = *usrc++ - 128; + cr = *vsrc++ - 128; + + rv = RVFAC*cr; + guv = GUFAC*cb + GVFAC*cr; + bu = BUFAC*cb; + + r = y + rv; + g = y + guv; + b = y + bu; + + if ((unsigned)(r | g | b) > 64*256-1) + { + r = clamp(r, 0, 64*256-1); + g = clamp(g, 0, 64*256-1); + b = clamp(b, 0, 64*256-1); + } + + *dst = LCD_RGBPACK_LCD(r >> 9, g >> 8, b >> 9); + +#if LCD_WIDTH >= LCD_HEIGHT + dst++; +#else + dst += LCD_WIDTH; +#endif + + y = YFAC*(*ysrc++ - 16); + r = y + rv; + g = y + guv; + b = y + bu; + + if ((unsigned)(r | g | b) > 64*256-1) + { + r = clamp(r, 0, 64*256-1); + g = clamp(g, 0, 64*256-1); + b = clamp(b, 0, 64*256-1); + } + + *dst = LCD_RGBPACK_LCD(r >> 9, g >> 8, b >> 9); + +#if LCD_WIDTH >= LCD_HEIGHT + dst++; +#else + dst += LCD_WIDTH; +#endif + } + while (dst < row_end); + + ysrc += stride; + usrc -= width >> 1; + vsrc -= width >> 1; + +#if LCD_WIDTH >= LCD_HEIGHT + row_end += LCD_WIDTH; + dst += LCD_WIDTH - width; +#else + row_end -= 1; + dst -= LCD_WIDTH*width + 1; +#endif + + do + { + int y, cb, cr, rv, guv, bu, r, g, b; + + y = YFAC*(*ysrc++ - 16); + cb = *usrc++ - 128; + cr = *vsrc++ - 128; + + rv = RVFAC*cr; + guv = GUFAC*cb + GVFAC*cr; + bu = BUFAC*cb; + + r = y + rv; + g = y + guv; + b = y + bu; + + if ((unsigned)(r | g | b) > 64*256-1) + { + r = clamp(r, 0, 64*256-1); + g = clamp(g, 0, 64*256-1); + b = clamp(b, 0, 64*256-1); + } + + *dst = LCD_RGBPACK_LCD(r >> 9, g >> 8, b >> 9); + +#if LCD_WIDTH >= LCD_HEIGHT + dst++; +#else + dst += LCD_WIDTH; +#endif + + y = YFAC*(*ysrc++ - 16); + r = y + rv; + g = y + guv; + b = y + bu; + + if ((unsigned)(r | g | b) > 64*256-1) + { + r = clamp(r, 0, 64*256-1); + g = clamp(g, 0, 64*256-1); + b = clamp(b, 0, 64*256-1); + } + + *dst = LCD_RGBPACK_LCD(r >> 9, g >> 8, b >> 9); + +#if LCD_WIDTH >= LCD_HEIGHT + dst++; +#else + dst += LCD_WIDTH; +#endif + } + while (dst < row_end); + + ysrc += stride; + usrc += stride >> 1; + vsrc += stride >> 1; + +#if LCD_WIDTH >= LCD_HEIGHT + row_end += LCD_WIDTH; + dst += LCD_WIDTH - width; +#else + row_end -= 1; + dst -= LCD_WIDTH*width + 1; +#endif + } + while (--linecounter > 0); + +#if LCD_WIDTH >= LCD_HEIGHT + lcd_update_rect(x, y, width, height); +#else + lcd_update_rect(LCD_WIDTH - y - height, x, height, width); +#endif +} + #define ROW_INC LCD_WIDTH #define COL_INC 1 #include "lcd-16bit-common.c" #include "lcd-bitmap-common.c" - diff --git a/firmware/target/hosted/sdl/lcd-bitmap.c b/firmware/target/hosted/sdl/lcd-bitmap.c index 4c296924af..4ee0bbef5c 100644 --- a/firmware/target/hosted/sdl/lcd-bitmap.c +++ b/firmware/target/hosted/sdl/lcd-bitmap.c @@ -223,208 +223,3 @@ void sim_lcd_ex_update_rect(int x_start, int y_start, int width, int height) } } #endif - -#ifdef HAVE_LCD_COLOR -/** - * |R| |1.000000 -0.000001 1.402000| |Y'| - * |G| = |1.000000 -0.334136 -0.714136| |Pb| - * |B| |1.000000 1.772000 0.000000| |Pr| - * Scaled, normalized, rounded and tweaked to yield RGB 565: - * |R| |74 0 101| |Y' - 16| >> 9 - * |G| = |74 -24 -51| |Cb - 128| >> 8 - * |B| |74 128 0| |Cr - 128| >> 9 - */ -#define YFAC (74) -#define RVFAC (101) -#define GUFAC (-24) -#define GVFAC (-51) -#define BUFAC (128) - -static inline int clamp(int val, int min, int max) -{ - if (val < min) - val = min; - else if (val > max) - val = max; - return val; -} - -void lcd_yuv_set_options(unsigned options) -{ - (void)options; -} - -/* Draw a partial YUV colour bitmap - similiar behavior to lcd_blit_yuv - in the core */ -void lcd_blit_yuv(unsigned char * const src[3], - int src_x, int src_y, int stride, - int x, int y, int width, int height) -{ - const unsigned char *ysrc, *usrc, *vsrc; - int linecounter; - fb_data *dst, *row_end; - long z; - - /* width and height must be >= 2 and an even number */ - width &= ~1; - linecounter = height >> 1; - -#if LCD_WIDTH >= LCD_HEIGHT - dst = &lcd_framebuffer[y][x]; - row_end = dst + width; -#else - dst = &lcd_framebuffer[x][LCD_WIDTH - y - 1]; - row_end = dst + LCD_WIDTH * width; -#endif - - z = stride * src_y; - ysrc = src[0] + z + src_x; - usrc = src[1] + (z >> 2) + (src_x >> 1); - vsrc = src[2] + (usrc - src[1]); - - /* stride => amount to jump from end of last row to start of next */ - stride -= width; - - /* upsampling, YUV->RGB conversion and reduction to RGB565 in one go */ - - do - { - do - { - int y, cb, cr, rv, guv, bu, r, g, b; - - y = YFAC*(*ysrc++ - 16); - cb = *usrc++ - 128; - cr = *vsrc++ - 128; - - rv = RVFAC*cr; - guv = GUFAC*cb + GVFAC*cr; - bu = BUFAC*cb; - - r = y + rv; - g = y + guv; - b = y + bu; - - if ((unsigned)(r | g | b) > 64*256-1) - { - r = clamp(r, 0, 64*256-1); - g = clamp(g, 0, 64*256-1); - b = clamp(b, 0, 64*256-1); - } - - *dst = LCD_RGBPACK_LCD(r >> 9, g >> 8, b >> 9); - -#if LCD_WIDTH >= LCD_HEIGHT - dst++; -#else - dst += LCD_WIDTH; -#endif - - y = YFAC*(*ysrc++ - 16); - r = y + rv; - g = y + guv; - b = y + bu; - - if ((unsigned)(r | g | b) > 64*256-1) - { - r = clamp(r, 0, 64*256-1); - g = clamp(g, 0, 64*256-1); - b = clamp(b, 0, 64*256-1); - } - - *dst = LCD_RGBPACK_LCD(r >> 9, g >> 8, b >> 9); - -#if LCD_WIDTH >= LCD_HEIGHT - dst++; -#else - dst += LCD_WIDTH; -#endif - } - while (dst < row_end); - - ysrc += stride; - usrc -= width >> 1; - vsrc -= width >> 1; - -#if LCD_WIDTH >= LCD_HEIGHT - row_end += LCD_WIDTH; - dst += LCD_WIDTH - width; -#else - row_end -= 1; - dst -= LCD_WIDTH*width + 1; -#endif - - do - { - int y, cb, cr, rv, guv, bu, r, g, b; - - y = YFAC*(*ysrc++ - 16); - cb = *usrc++ - 128; - cr = *vsrc++ - 128; - - rv = RVFAC*cr; - guv = GUFAC*cb + GVFAC*cr; - bu = BUFAC*cb; - - r = y + rv; - g = y + guv; - b = y + bu; - - if ((unsigned)(r | g | b) > 64*256-1) - { - r = clamp(r, 0, 64*256-1); - g = clamp(g, 0, 64*256-1); - b = clamp(b, 0, 64*256-1); - } - - *dst = LCD_RGBPACK_LCD(r >> 9, g >> 8, b >> 9); - -#if LCD_WIDTH >= LCD_HEIGHT - dst++; -#else - dst += LCD_WIDTH; -#endif - - y = YFAC*(*ysrc++ - 16); - r = y + rv; - g = y + guv; - b = y + bu; - - if ((unsigned)(r | g | b) > 64*256-1) - { - r = clamp(r, 0, 64*256-1); - g = clamp(g, 0, 64*256-1); - b = clamp(b, 0, 64*256-1); - } - - *dst = LCD_RGBPACK_LCD(r >> 9, g >> 8, b >> 9); - -#if LCD_WIDTH >= LCD_HEIGHT - dst++; -#else - dst += LCD_WIDTH; -#endif - } - while (dst < row_end); - - ysrc += stride; - usrc += stride >> 1; - vsrc += stride >> 1; - -#if LCD_WIDTH >= LCD_HEIGHT - row_end += LCD_WIDTH; - dst += LCD_WIDTH - width; -#else - row_end -= 1; - dst -= LCD_WIDTH*width + 1; -#endif - } - while (--linecounter > 0); - -#if LCD_WIDTH >= LCD_HEIGHT - lcd_update_rect(x, y, width, height); -#else - lcd_update_rect(LCD_WIDTH - y - height, x, height, width); -#endif -} -#endif /* HAVE_LCD_COLOR */ -- cgit v1.2.3