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.

# This Makefile is for building the CELL BE SPU libs
# libfb_writer_spu.so, libyuv2rgb_spu.so, libbilin_scaler_spu.so

# Toolchain
PPU_LD=/usr/bin/ld
SPU_SRCDIR=$(srcdir)/src/video/ps3/spulibs
SPU_LIBDIR=$(srcdir)/src/video/ps3/spulibs/libs
SPU_CFLAGS=-g -W -Wall -Winline -Wno-main -I. -I /usr/spu/include -I /opt/cell/sdk/usr/spu/include -finline-limit=10000 -Winline -ftree-vectorize -funroll-loops -fmodulo-sched -ffast-math -fPIC -O2

DEPS = $(SPU_SRCDIR)/spu_common.h
LIBS= fb_writer yuv2rgb bilin_scaler

OBJLIBS = $(foreach lib,$(LIBS),lib$(lib)_spu.a)
SHALIBS = $(foreach lib,$(LIBS),lib$(lib)_spu.so)


ps3libs: $(foreach lib,$(OBJLIBS),$(SPU_LIBDIR)/$(lib)) $(foreach lib,$(SHALIBS),$(SPU_LIBDIR)/$(lib))


$(SPU_LIBDIR)/lib%_spu.a: $(SPU_LIBDIR)/%-embed.o
	$(AR) -qcs $@ $<

$(SPU_LIBDIR)/lib%_spu.so: $(SPU_LIBDIR)/%-embed.o
	$(PPU_LD) -o $@ -shared -soname=$(notdir $@) $<

$(SPU_LIBDIR)/%-embed.o: $(SPU_LIBDIR)/%.o
	$(EMBEDSPU) -m32 $(subst -embed.o,,$(notdir $@))_spu $< $@

$(SPU_LIBDIR)/%.o: $(SPU_SRCDIR)/%.c $(DEPS)
	$(SPU_GCC) $(SPU_CFLAGS) -o $@ $< -lm


ps3libs-install: $(foreach obj,$(OBJLIBS),$(SPU_LIBDIR)/$(obj)) $(foreach obj,$(SHALIBS),$(SPU_LIBDIR)/$(obj))
	for file in $(OBJLIBS); do \
		$(INSTALL) -c -m 0655 $(SPU_LIBDIR)/$$file $(DESTDIR)$(libdir)/$$file; \
	done
	for file in $(SHALIBS); do \
		$(INSTALL) -c -m 0755 $(SPU_LIBDIR)/$$file $(DESTDIR)$(libdir)/$$file; \
	done

ps3libs-uninstall:
	for file in $(OBJLIBS) $(SHALIBS); do \
		rm -f $(DESTDIR)$(libdir)/$$file; \
	done

ps3libs-clean:
	rm -f $(SPU_LIBDIR)/*