Mercurial > sdl-ios-xcode
annotate src/video/directfb/SDL_DirectFB_dyn.h @ 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 | d72a0dd80e8b |
children | f7b03b6838cb |
rev | line source |
---|---|
3000
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1 /* |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
2 SDL - Simple DirectMedia Layer |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
3 Copyright (C) 1997-2009 Sam Lantinga |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
4 |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
5 This library is free software; you can redistribute it and/or |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
6 modify it under the terms of the GNU Lesser General Public |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
7 License as published by the Free Software Foundation; either |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
8 version 2.1 of the License, or (at your option) any later version. |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
9 |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
10 This library is distributed in the hope that it will be useful, |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
13 Lesser General Public License for more details. |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
14 |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
15 You should have received a copy of the GNU Lesser General Public |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
16 License along with this library; if not, write to the Free Software |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
18 |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
19 Sam Lantinga |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
20 slouken@libsdl.org |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
21 */ |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
22 |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
23 #ifndef _SDL_DirectFB_dyn_h |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
24 #define _SDL_DirectFB_dyn_h |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
25 |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
26 #define DFB_SYMS \ |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
27 DFB_SYM(DFBResult, DirectFBError, (const char *msg, DFBResult result), (msg, result), return) \ |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
28 DFB_SYM(DFBResult, DirectFBErrorFatal, (const char *msg, DFBResult result), (msg, result), return) \ |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
29 DFB_SYM(const char *, DirectFBErrorString, (DFBResult result), (result), return) \ |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
30 DFB_SYM(const char *, DirectFBUsageString, ( void ), (), return) \ |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
31 DFB_SYM(DFBResult, DirectFBInit, (int *argc, char *(*argv[]) ), (argc, argv), return) \ |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
32 DFB_SYM(DFBResult, DirectFBSetOption, (const char *name, const char *value), (name, value), return) \ |
3023
d72a0dd80e8b
DirectFB cleanups & simple window manager
Couriersud <couriersud@arcor.de>
parents:
3000
diff
changeset
|
33 DFB_SYM(DFBResult, DirectFBCreate, (IDirectFB **interface), (interface), return) \ |
d72a0dd80e8b
DirectFB cleanups & simple window manager
Couriersud <couriersud@arcor.de>
parents:
3000
diff
changeset
|
34 DFB_SYM(const char *, DirectFBCheckVersion, (unsigned int required_major, unsigned int required_minor, unsigned int required_micro), \ |
d72a0dd80e8b
DirectFB cleanups & simple window manager
Couriersud <couriersud@arcor.de>
parents:
3000
diff
changeset
|
35 (required_major, required_minor, required_micro), return) |
3000
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
36 // #define SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC "/usr/lib/libdirectfb-1.2.so.0" |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
37 |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
38 int SDL_DirectFB_LoadLibrary(void); |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
39 void SDL_DirectFB_UnLoadLibrary(void); |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
40 |
61081db2385a
Whoops, missing files from Couriersud's update
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
41 #endif |