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Oops (from about 2 months ago) - implement viewport support in the Gigabeat F's asm-optimised lcd_bitmap_transparent_part() function.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16525 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dave Chapman 2008-03-05 08:12:54 +00:00
parent 25949f9cd1
commit 4d58b0d4f8
1 changed files with 5 additions and 5 deletions
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10
firmware/target/arm/s3c2440/gigabeat-fx/lcd-meg-fx.c
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@ -287,22 +287,22 @@ void lcd_bitmap_transparent_part(const fb_data *src, int src_x, int src_y,
int w, px; int w, px;
fb_data *dst; fb_data *dst;
if (x + width > LCD_WIDTH) if (x + width > current_vp->width)
width = LCD_WIDTH - x; /* Clip right */ width = current_vp->width - x; /* Clip right */
if (x < 0) if (x < 0)
width += x, x = 0; /* Clip left */ width += x, x = 0; /* Clip left */
if (width <= 0) if (width <= 0)
return; /* nothing left to do */ return; /* nothing left to do */
if (y + height > LCD_HEIGHT) if (y + height > current_vp->height)
height = LCD_HEIGHT - y; /* Clip bottom */ height = current_vp->height - y; /* Clip bottom */
if (y < 0) if (y < 0)
height += y, y = 0; /* Clip top */ height += y, y = 0; /* Clip top */
if (height <= 0) if (height <= 0)
return; /* nothing left to do */ return; /* nothing left to do */
src += stride * src_y + src_x; /* move starting point */ src += stride * src_y + src_x; /* move starting point */
dst = &lcd_framebuffer[y][x]; dst = &lcd_framebuffer[current_vp->y+y][current_vp->x+x];
asm volatile ( asm volatile (
".rowstart: \r\n" ".rowstart: \r\n"