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authorRafaël Carré <rafael.carre@gmail.com>2011-12-03 21:48:34 +0000
committerRafaël Carré <rafael.carre@gmail.com>2011-12-03 21:48:34 +0000
commit1414e837430eef49822233a8bb1fa6587335d859 (patch)
treed0f22cda924745ebdfc1c117807fed7455e34897 /firmware/drivers/lcd-16bit.c
parent2c523acf3f4cebd79f272a5b77313057f62ad807 (diff)
lcd_blit_yuv: move to lcd-16bit-common.c
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31129 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/drivers/lcd-16bit.c')
-rw-r--r--firmware/drivers/lcd-16bit.c204
1 files changed, 0 insertions, 204 deletions
diff --git a/firmware/drivers/lcd-16bit.c b/firmware/drivers/lcd-16bit.c
index 300dbba9ac..844db296c6 100644
--- a/firmware/drivers/lcd-16bit.c
+++ b/firmware/drivers/lcd-16bit.c
@@ -913,210 +913,6 @@ 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