From 9e848062533207130667f6eaa748549367ccbedf Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Tue, 31 Mar 2009 15:25:11 -0700 Subject: cirrusfb: add imageblit function Add hardware color expansion (imageblit) function. It roughly doubles scrolling speed of my Alpine card (GD5430). Signed-off-by: Krzysztof Helt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/cirrusfb.c | 64 ++++++++++++++++++++++++++++++++++-------------- 1 file changed, 46 insertions(+), 18 deletions(-) (limited to 'drivers/video/cirrusfb.c') diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c index e4ac2f6d4d9..a2a09b39c59 100644 --- a/drivers/video/cirrusfb.c +++ b/drivers/video/cirrusfb.c @@ -381,7 +381,8 @@ static void cirrusfb_BitBLT(u8 __iomem *regbase, int bits_per_pixel, static void cirrusfb_RectFill(u8 __iomem *regbase, int bits_per_pixel, u_short x, u_short y, u_short width, u_short height, - u32 color, u_short line_length); + u32 fg_color, u32 bg_color, + u_short line_length, u_char blitmode); static void bestclock(long freq, int *nom, int *den, int *div); @@ -1790,8 +1791,8 @@ static void cirrusfb_fillrect(struct fb_info *info, info->var.bits_per_pixel, (region->dx * m) / 8, region->dy, (region->width * m) / 8, region->height, - color, - info->fix.line_length); + color, color, + info->fix.line_length, 0x40); } static void cirrusfb_copyarea(struct fb_info *info, @@ -1840,9 +1841,33 @@ static void cirrusfb_imageblit(struct fb_info *info, { struct cirrusfb_info *cinfo = info->par; - if (!is_laguna(cinfo)) + if (info->state != FBINFO_STATE_RUNNING) + return; + if (info->flags & FBINFO_HWACCEL_DISABLED) + cfb_imageblit(info, image); + else { + unsigned size = ((image->width + 7) >> 3) * image->height; + int m = info->var.bits_per_pixel; + u32 fg, bg; + + if (info->var.bits_per_pixel == 8) { + fg = image->fg_color; + bg = image->bg_color; + } else { + fg = ((u32 *)(info->pseudo_palette))[image->fg_color]; + bg = ((u32 *)(info->pseudo_palette))[image->bg_color]; + } cirrusfb_WaitBLT(cinfo->regbase); - cfb_imageblit(info, image); + /* byte rounded scanlines */ + vga_wgfx(cinfo->regbase, CL_GR33, 0x00); + cirrusfb_RectFill(cinfo->regbase, + info->var.bits_per_pixel, + (image->dx * m) / 8, image->dy, + (image->width * m) / 8, image->height, + fg, bg, + info->fix.line_length, 0x04); + memcpy(info->screen_base, image->data, size); + } } #ifdef CONFIG_PPC_PREP @@ -1988,10 +2013,12 @@ static int __devinit cirrusfb_set_fbinfo(struct fb_info *info) | FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN | FBINFO_HWACCEL_FILLRECT + | FBINFO_HWACCEL_IMAGEBLIT | FBINFO_HWACCEL_COPYAREA; if (noaccel || is_laguna(cinfo)) info->flags |= FBINFO_HWACCEL_DISABLED; info->fbops = &cirrusfb_ops; + if (cinfo->btype == BT_GD5480) { if (var->bits_per_pixel == 16) info->screen_base += 1 * MB_; @@ -2711,7 +2738,8 @@ static void cirrusfb_BitBLT(u8 __iomem *regbase, int bits_per_pixel, static void cirrusfb_RectFill(u8 __iomem *regbase, int bits_per_pixel, u_short x, u_short y, u_short width, u_short height, - u32 color, u_short line_length) + u32 fg_color, u32 bg_color, u_short line_length, + u_char blitmode) { u_long ndest = (y * line_length) + x; u_char op; @@ -2720,24 +2748,24 @@ static void cirrusfb_RectFill(u8 __iomem *regbase, int bits_per_pixel, /* This is a ColorExpand Blt, using the */ /* same color for foreground and background */ - vga_wgfx(regbase, VGA_GFX_SR_VALUE, color); /* foreground color */ - vga_wgfx(regbase, VGA_GFX_SR_ENABLE, color); /* background color */ + vga_wgfx(regbase, VGA_GFX_SR_VALUE, bg_color); + vga_wgfx(regbase, VGA_GFX_SR_ENABLE, fg_color); - op = 0xc0; + op = 0x80; if (bits_per_pixel >= 16) { - vga_wgfx(regbase, CL_GR10, color >> 8); /* foreground color */ - vga_wgfx(regbase, CL_GR11, color >> 8); /* background color */ - op = 0xd0; + vga_wgfx(regbase, CL_GR10, bg_color >> 8); + vga_wgfx(regbase, CL_GR11, fg_color >> 8); + op = 0x90; } if (bits_per_pixel == 32) { - vga_wgfx(regbase, CL_GR12, color >> 16);/* foreground color */ - vga_wgfx(regbase, CL_GR13, color >> 16);/* background color */ - vga_wgfx(regbase, CL_GR14, color >> 24);/* foreground color */ - vga_wgfx(regbase, CL_GR15, color >> 24);/* background color */ - op = 0xf0; + vga_wgfx(regbase, CL_GR12, bg_color >> 16); + vga_wgfx(regbase, CL_GR13, fg_color >> 16); + vga_wgfx(regbase, CL_GR14, bg_color >> 24); + vga_wgfx(regbase, CL_GR15, fg_color >> 24); + op = 0xb0; } cirrusfb_set_blitter(regbase, width - 1, height - 1, - 0, ndest, op, line_length); + 0, ndest, op | blitmode, line_length); } /************************************************************************** -- cgit v1.2.3