Hi!
I got a pb with a fill_rect focntion… here is a part of my code
I want to draw some pixels on a played video movie and i use a "putpixel"
focntion
header :
extern void putpixel(SDL_Surface *screen, SDL_Surface *surface, int x, int
y, Uint32 pixel);
Here is the focntion :
void putpixel(SDL_Surface *screen, SDL_Surface *surface, int x, int y,
Uint32 pixel)
{
Uint32 blanc ;
SDL_Rect dest;
blanc = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
dest.x = x-2;
dest.y = y-2;
dest.w = 3;
dest.h = 3;
SDL_FillRect(screen, &dest, blanc);
SDL_UpdateRects(screen, 1, &dest);
The screen in the header is the typical screen surface and the surface in
the header is a surface called surface_p which has been converted to the
same format as screen and in which i will to keep the position of the pixels
i have put on the video.
The code i gave you is working but i can’t keep the pixels… It appears and
disappears each time a new picture is displayed for the video…
If i change all the “screen” in the putpixel fonction in “surface” I got an
error (“segementation fault”) when i tried to use the Fill_rect
(SDL_FillRect (surface, &dest, blanc) )
And i dunno why… Does anyone can help me ?
I also got another pb… I got a crash when i ran the prog for the last
time… And now when i try to compile Cygwin tells me that "Nothing is to be
done for “all” … Here is my Makefile (it has worked for 3 months without a
crash:
INC_DIR = /usr/local/include/SDL
LIB_DIR = /usr/local/lib
SDL_LIB = -lSDL -lSDL_net -ljpeg
CFLAGS = -I$(INC_DIR) -O2 -DPOINTING=1 #-ggdb
include interface.mk
include codagevid.mk
SRCS = main.c
debug.c
queue.c
$(INTERFACE_SRC)
$(CODAGEVID_SRC)
OBJS = $(SRCS:%.c=%.o)
all: main
include .depends
main: $(OBJS)
$(CC) $(OBJS) $(SDL_LIB) -o $@
$(OBJS): %.o: %.c
$(CC) -c $< $(CFLAGS) -o $@
.depends depends:
@$(RM) .depends
@touch .depends
@$(CC) -MM $(CFLAGS) $(SRCS) >> .depends
clean:
$(RM) *~ $(OBJS) .depends main.exe
HEEELLLPPP!!!
Thx…
PS: If my english is not clear i can send you the same questions in french
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