Mercurial > sdl-ios-xcode
view Makefile.ds @ 3485:e77a69aae239
Mason Wheeler to sdl
I updated SDL, and suddenly my SDL frames stopped working. They'd "initialize" full of gibberish, and I couldn't render anything to them. After a bit of digging, I found a problem: the renderer initialization routine in my SDL frame code wasn't getting called anymore.
procedure TSdlFrame.Paint;
begin
if SDL_SelectRenderer(FWindowID) = -1 then
CreateRenderer;
SDL_RenderPresent;
end;
function TSdlFrame.CreateRenderer: boolean;
const
pf: tagPIXELFORMATDESCRIPTOR = (nSize: sizeof(pf); nVersion: 1;
dwFlags: PFD_DRAW_TO_WINDOW or PFD_SUPPORT_OPENGL or PFD_DOUBLEBUFFER;
iPixelType: PFD_TYPE_RGBA; cColorBits: 24; cAlphaBits: 8;
iLayerType: PFD_MAIN_PLANE);
RENDERERS: array[TRendererType] of AnsiString = ('software', 'gdi', 'opengl', 'd3d');
var
pFormat: integer;
begin
if (SDL_SelectRenderer(FWindowID) = 0) then
begin
result := true;
Exit;
end;
if FRendererType = rtOpenGL then
begin
pFormat := ChoosePixelFormat(canvas.Handle, @pf);
if not SetPixelFormat(canvas.Handle, pFormat, @pf) then
outputDebugString(PChar(SysErrorMessage(GetLastError)));
if wglCreateContext(canvas.Handle) = 0 then
outputDebugString(PChar(SysErrorMessage(GetLastError)));
end;
if (SDL_CreateRenderer(FWindowID, SDL_RendererIndex(RENDERERS[FRendererType]), [sdlrPresentFlip3, sdlrAccelerated]) = 0) then
begin
SDL_ShowWindow(FWindowID);
assert(SDL_SetRenderDrawColor(0, 0, 0, 255) = 0);
FFlags := SDL_GetWindowFlags(FWindowID);
if assigned(FOnAvailable) then
FOnAvailable(self);
end
else outputDebugString(pChar(format('SDL_CreateRenderer failed: %s', [sdl_GetError])));
result := SDL_SelectRenderer(FWindowID) = 0;
end;
This is a critical issue. The Paint method gets called when the control receives a WM_PAINT message from Windows. I can't create the renderer before then, or it will fail and cause trouble. And when I do create it, it needs to be created with certain parameters. So imagine my surprise when I started debugging into the DLL and found that SDL_SelectRenderer was trying to be "helpful" by creating the renderer for me if it didn't already exist! Now not only does my initialization code not get called, I end up with the wrong renderer and so things don't render as expected when I try to use the window.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 24 Nov 2009 04:48:12 +0000 |
| parents | b7a48f533966 |
| children | c5925cd41955 |
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#LibSDL 1.3 porting and enhancements by Darren Alton (lifning) #LibSDL 1.2.9 DS porting by Troy Davis(GPF) ifeq ($(strip $(DEVKITPRO)),) $(error "Please set DEVKITPRO in your environment (available from http://www.devkitpro.org). export DEVKITPRO=<path to>devkitPro") endif ifeq ($(strip $(DEVKITARM)),) DEVKITARM = $(DEVKITPRO)/devkitARM endif PATH := $(PATH):$(DEVKITARM)/bin CC = arm-eabi-gcc AR = arm-eabi-ar RANLIB = arm-eabi-ranlib #ifdef GL #DEFS += -DSDL_VIDEO_OPENGL=1 #TARGET = libSDL_gl.a #else TARGET = libSDL.a #endif #CFLAGS=$(DEFS) -Iinclude CFLAGS = -mthumb -mthumb-interwork \ -march=armv5te -mtune=arm946e-s \ -O2 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \ -DARM9 -D__NDS__ -I$(DEVKITPRO)/libnds/include -DENABLE_NDS -DNO_SIGNAL_H -DDISABLE_THREADS -DPACKAGE=\"SDL\" -DVERSION=\"1.3\" -DHAVE_ALLOCA_H=1 -DHAVE_ALLOCA=1 \ -Iinclude -Isrc -Isrc/audio -Isrc/cdrom -Isrc/endian -Isrc/events -Isrc/joystick -Isrc/thread/nds -Isrc/thread -Isrc/timer -Isrc/video #src/audio/disk/SDL_diskaudio.c \ #src/audio/dummy/SDL_dummyaudio.c \ SRCS = \ src/SDL.c \ src/SDL_compat.c \ src/SDL_error.c \ src/SDL_fatal.c \ src/audio/nds/SDL_ndsaudio.c \ src/audio/SDL_audio.c \ src/audio/SDL_audiocvt.c \ src/audio/SDL_audiodev.c \ src/audio/SDL_audiotypecvt.c \ src/audio/SDL_mixer.c \ src/audio/SDL_mixer_m68k.c \ src/audio/SDL_mixer_MMX.c \ src/audio/SDL_mixer_MMX_VC.c \ src/audio/SDL_wave.c \ src/cdrom/dummy/SDL_syscdrom.c \ src/cdrom/SDL_cdrom.c \ src/cpuinfo/SDL_cpuinfo.c \ src/events/SDL_events.c \ src/events/SDL_keyboard.c \ src/events/SDL_mouse.c \ src/events/SDL_quit.c \ src/events/SDL_windowevents.c \ src/file/SDL_rwops.c \ src/power/SDL_power.c \ src/power/nds/SDL_syspower.c \ src/haptic/SDL_haptic.c \ src/haptic/nds/SDL_syshaptic.c \ src/joystick/nds/SDL_sysjoystick.c \ src/joystick/SDL_joystick.c \ src/stdlib/SDL_getenv.c \ src/stdlib/SDL_iconv.c \ src/stdlib/SDL_malloc.c \ src/stdlib/SDL_qsort.c \ src/stdlib/SDL_stdlib.c \ src/stdlib/SDL_string.c \ src/thread/SDL_thread.c \ src/thread/nds/SDL_syscond.c \ src/thread/nds/SDL_sysmutex.c \ src/thread/nds/SDL_syssem.c \ src/thread/nds/SDL_systhread.c \ src/timer/nds/SDL_systimer.c \ src/timer/SDL_timer.c \ src/video/nds/SDL_ndsevents.c \ src/video/nds/SDL_ndsrender.c \ src/video/nds/SDL_ndsvideo.c \ src/video/dummy/SDL_nullevents.c \ src/video/dummy/SDL_nullrender.c \ src/video/dummy/SDL_nullvideo.c \ src/video/SDL_blit_0.c \ src/video/SDL_blit_1.c \ src/video/SDL_blit_A.c \ src/video/SDL_blit_auto.c \ src/video/SDL_blit.c \ src/video/SDL_blit_copy.c \ src/video/SDL_blit_N.c \ src/video/SDL_blit_slow.c \ src/video/SDL_bmp.c \ src/video/SDL_drawline.c \ src/video/SDL_drawpoint.c \ src/video/SDL_fillrect.c \ src/video/SDL_gamma.c \ src/video/SDL_pixels.c \ src/video/SDL_rect.c \ src/video/SDL_renderer_gl.c \ src/video/SDL_renderer_sw.c \ src/video/SDL_RLEaccel.c \ src/video/SDL_stretch.c \ src/video/SDL_surface.c \ src/video/SDL_video.c \ src/video/SDL_yuv_mmx.c \ src/video/SDL_yuv_sw.c \ OBJS = $(SRCS:.c=.o) TEST = \ test/nds-test-progs/general/general.nds \ test/nds-test-progs/sprite/sprite.nds \ test/nds-test-progs/sprite2/sprite2.nds \ all: $(TARGET) $(TARGET): copy_config \ $(OBJS) $(AR) rc $(TARGET) $(OBJS) -@ ($(RANLIB) $@ || true) >/dev/null 2>&1 install: $(TARGET) @cp libSDL.a $(DEVKITPRO)/libnds/lib/ @mkdir -p $(DEVKITPRO)/libnds/include/SDL/ @cp include/*.h $(DEVKITPRO)/libnds/include/SDL/ nds_test: $(MAKE) -C test/nds-test-progs copy_config: @cp include/SDL_config.h.default include/SDL_config.h clean: rm -f include/SDL_config.h $(OBJS)