diff options
Diffstat (limited to 'drivers/video/cfbimgblt.c')
-rw-r--r-- | drivers/video/cfbimgblt.c | 26 |
1 files changed, 4 insertions, 22 deletions
diff --git a/drivers/video/cfbimgblt.c b/drivers/video/cfbimgblt.c index 4c123abaa84..a7770c4f17d 100644 --- a/drivers/video/cfbimgblt.c +++ b/drivers/video/cfbimgblt.c @@ -80,10 +80,12 @@ static u32 cfb_tab32[] = { #define LEFT_POS(bpp) (32 - bpp) #define SHIFT_HIGH(val, bits) ((val) >> (bits)) #define SHIFT_LOW(val, bits) ((val) << (bits)) +#define BIT_NR(b) (7 - (b)) #else #define LEFT_POS(bpp) (0) #define SHIFT_HIGH(val, bits) ((val) << (bits)) #define SHIFT_LOW(val, bits) ((val) >> (bits)) +#define BIT_NR(b) (b) #endif static inline void color_imageblit(const struct fb_image *image, @@ -177,7 +179,7 @@ static inline void slow_imageblit(const struct fb_image *image, struct fb_info * while (j--) { l--; - color = (*s & (1 << l)) ? fgcolor : bgcolor; + color = (*s & 1 << (BIT_NR(l))) ? fgcolor : bgcolor; color <<= LEFT_POS(bpp); val |= SHIFT_HIGH(color, shift); @@ -272,33 +274,13 @@ void cfb_imageblit(struct fb_info *p, const struct fb_image *image) { u32 fgcolor, bgcolor, start_index, bitstart, pitch_index = 0; u32 bpl = sizeof(u32), bpp = p->var.bits_per_pixel; - u32 width = image->width, height = image->height; + u32 width = image->width; u32 dx = image->dx, dy = image->dy; - int x2, y2, vxres, vyres; u8 __iomem *dst1; if (p->state != FBINFO_STATE_RUNNING) return; - vxres = p->var.xres_virtual; - vyres = p->var.yres_virtual; - /* - * We could use hardware clipping but on many cards you get around - * hardware clipping by writing to framebuffer directly like we are - * doing here. - */ - if (image->dx > vxres || image->dy > vyres) - return; - - x2 = image->dx + image->width; - y2 = image->dy + image->height; - dx = image->dx > 0 ? image->dx : 0; - dy = image->dy > 0 ? image->dy : 0; - x2 = x2 < vxres ? x2 : vxres; - y2 = y2 < vyres ? y2 : vyres; - width = x2 - dx; - height = y2 - dy; - bitstart = (dy * p->fix.line_length * 8) + (dx * bpp); start_index = bitstart & (32 - 1); pitch_index = (p->fix.line_length & (bpl - 1)) * 8; |