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fbdev: Speed up scrolling of tdfxfb

PATCH In review Antonino A. Daplas 1 participant 1 message Sep 4, 2004 Framebuffer layer

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Antonino A. Daplas

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PATCH 1/5 fbdev: Speed up scrolling of tdfxfb

This patch speeds up scrolling of tdfxfb by maximizing var->yres_virtual so tdfxfb uses SCROLL_PAN_MOVE instead of SCROLL_REDRAW. This is true whether CONFIG_FB_3DFX_ACCEL is set or not. This problem was reported by Paolo Ornati <[email protected]> who also made substantial contributions to solve this problem.

This patch also fixes compile errors when CONFIG_FB_3DFX_ACCEL is false.

Signed-off-by Antonino Daplas <[email protected]>

---

 Makefile |    5 ++---
 tdfxfb.c |   47 +++++++++++++++++++++++++++++++----------------
 2 files changed, 33 insertions(+), 19 deletions(-)
drivers/video/Makefile +2 -3
diff -uprN linux-2.6.9-rc1-mm3-orig/drivers/video/Makefile linux-2.6.9-rc1-mm3/drivers/video/Makefile
@@ -34,10 +34,9 @@ obj-$(CONFIG_FB_CYBER)            += cyb
 obj-$(CONFIG_FB_CYBER2000)        += cyber2000fb.o cfbfillrect.o cfbcopyarea.o cfbimgblt.o
 obj-$(CONFIG_FB_GBE)              += gbefb.o cfbfillrect.o cfbcopyarea.o cfbimgblt.o
 obj-$(CONFIG_FB_SGIVW)            += sgivwfb.o cfbfillrect.o cfbcopyarea.o cfbimgblt.o
-obj-$(CONFIG_FB_3DFX)             += tdfxfb.o tdfxfb_lib.o
-tdfxfb_lib-y                      := cfbimgblt.o
+obj-$(CONFIG_FB_3DFX)             += tdfxfb.o cfbimgblt.o
 ifneq ($(CONFIG_FB_3DFX_ACCEL),y)
-tdfxfb_lib-y                      += cfbfillrect.o cfbcopyarea.o
+obj-$(CONFIG_FB_3DFX)             += cfbfillrect.o cfbcopyarea.o
 endif
 obj-$(CONFIG_FB_MAC)              += macfb.o macmodes.o cfbfillrect.o cfbcopyarea.o cfbimgblt.o 
 obj-$(CONFIG_FB_HP300)            += hpfb.o cfbfillrect.o cfbimgblt.o
drivers/video/tdfxfb.c +31 -16

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