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From Bug #36: There are a couple of issues with the selection of Altivec alpha-blitting routines in CalculateAlphaBlit() in src/video/SDL_Blit_A.c. 1) There's no check for the presence of Altivec when checking if the Blit32to565PixelAlphaAltivec() routine can be selected. 2) Altivec cannot be used in video memory, and there's no check if the destination surface is a hardware surface. (Alpha-blitting to a hardware surface with GPU support is a bad idea, but somebody's bound to do it anyway.) Patch to fix these attached.
author Ryan C. Gordon <icculus@icculus.org>
date Sun, 08 Jan 2006 21:18:15 +0000
parents 19d8949b4584
children a4d515d0fc3a
line wrap: on
line source


## Makefile.am for the SDL video library

noinst_LTLIBRARIES = libvideo.la

# Define which subdirectories need to be built
SUBDIRS = @VIDEO_SUBDIRS@
DIST_SUBDIRS = dummy x11 dga nanox fbcon directfb vgl svga ggi aalib \
               wincommon windib windx5 \
               maccommon macdsp macrom riscos quartz \
               bwindow ps2gs photon cybergfx epoc picogui \
               ataricommon xbios gem dc qtopia XFree86 wscons

DRIVERS = @VIDEO_DRIVERS@

# Include the architecture-independent sources
COMMON_SRCS =			\
	SDL_RLEaccel.c		\
	SDL_RLEaccel_c.h	\
	SDL_blit.c		\
	SDL_blit.h		\
	SDL_blit_0.c		\
	SDL_blit_1.c		\
	SDL_blit_A.c		\
	SDL_blit_N.c		\
	SDL_bmp.c		\
	SDL_cursor.c		\
	SDL_cursor_c.h		\
	SDL_gamma.c		\
	SDL_glfuncs.h		\
	SDL_leaks.h		\
	SDL_memops.h		\
	SDL_pixels.c		\
	SDL_pixels_c.h		\
	SDL_surface.c		\
	SDL_stretch.c		\
	SDL_stretch_c.h		\
	SDL_sysvideo.h		\
	SDL_video.c		\
	SDL_yuv.c		\
	SDL_yuvfuncs.h		\
	SDL_yuv_sw.c		\
	SDL_yuv_sw_c.h		\
	SDL_yuv_mmx.c		\
	mmx.h			\
	blank_cursor.h		\
	default_cursor.h

libvideo_la_SOURCES = $(COMMON_SRCS)
libvideo_la_LIBADD = $(DRIVERS)
libvideo_la_DEPENDENCIES = $(DRIVERS)