tag: tip
user: Jiang Jiang <gzjjgod@gmail.com>
date: Thu Apr 15 12:01:46 2010 +0800
summary: Add windowID to text editing event

SDL_CreateTexture allows the creation of textures of size 0, which can lead to div by 0 errors

 Tatu Kilappa      2010-02-11 12:13:20 PST

When compiling with -Wconversion, gcc complains about a cast in SDL_endian.h
that might change the result as we are casting from an int into an Uint16. This
is of course not visible unless we are on a non-x86 platform where the
assembler is not available.

While it's not really an error, the warning is really annoying. To fix, change
SDL_endian.h line 87 to:

  return(Uint16)((x<<8)|(x>>8));

Thank you.

* Switched event type to enum (int32)
* Switched polling by mask to polling by type range
* Added SDL_RegisterEvents() to allow dynamic user event registration
* Spread events out to allow inserting new related events without breaking binary compatibility
* Added padding to event structures so they're the same size regardless of 32-bit compiler structure packing settings
* Split SDL_HasEvent() to SDL_HasEvent() for a single event and SDL_HasEvents() for a range of events
* Added SDL_GetEventState() as a shortcut for SDL_EventState(X, SDL_QUERY)
* Added SDL_FlushEvent() and SDL_FlushEvents() to clear events from the event queue

 Andrey      2010-03-07 07:57:14 PST

mingw32ce-build small fix

 Ozkan Sezer      2010-02-06 12:31:06 PST

Hi:

Here are some small fixes for compiling SDL against mingw-w64.
(see http://mingw-w64.sourceforge.net/ .  Despite the name, it
supports both win32 and win64.)

src/audio/windx5/directx.h and src/video/windx5/directx.h (both
SDL-1.2 and SDL-1.3.)  I get compilation errors about some union
not having a member named u1 and alike, because of other system
headers being included before this one and them already defining
DUMMYUNIONNAME and stuff. This header probably assumes that those
stuff are defined in windef.h, but mingw-w64 headers define them
in _mingw.h. Easily fixed by moving NONAMELESSUNION definition to
the top of the file.

src/thread/win32/SDL_systhread.c (both SDL-1.2 and SDL-1.3.) :
The __GNUC__ case for pfnSDL_CurrentBeginThread is 32-bit centric
because _beginthreadex returns uintptr_t, not unsigned long which
is 32 bits in win64. Changing the return type to uintptr_t fixes
it.

video/SDL_blit.h (and configure.in) (SDL-1.3-only) :  MinGW-w64
uses msvcrt version of _aligned_malloc and _aligned_free and
they are defined in intrin.h (similar to VC).  Adding proper
ifdefs fixes it. (Notes about macros to check: __MINGW32__ is
defined for both mingw.org and for mingw-w64 for both win32 and
win64, __MINGW64__ is only defined for _WIN64, so __MINGW64__
can't be used to detect mingw-w64: including _mingw.h and then
checking for __MINGW64_VERSION_MAJOR does the trick.)

SDL_win32video.h (SDL-1.3-only) :  Tweaked the VINWER definition
and location in order to avoid multiple redefinition warnings.

Hope these are useful. Thanks.

Kalle Olavi Niemitalo      2010-02-28 09:15:50 PST

It seems the SDLK_LMETA and SDLK_RMETA constants have been removed from SDL
1.3.  I grepped for them in the SDL source tree and these were the only hits:

./include/SDL_compat.h:230:#define SDLK_LSUPER SDLK_LMETA
./include/SDL_compat.h:231:#define SDLK_RSUPER SDLK_RMETA
./src/video/bwindow/SDL_BWin.h:194:        keymap[0x66] = SDLK_LMETA;
./src/video/bwindow/SDL_BWin.h:195:        keymap[0x67] = SDLK_RMETA;

I don't know how compatible SDL 1.3 is supposed to be with applications
designed for SDL 1.2.  However, as you can see, SDL itself is still trying to
use the removed constants, and that is clearly a bug.

Because SDL_compat.h defines KMOD_LMETA as KMOD_LGUI, I suppose it should also
define SDLK_LMETA as SDLK_LGUI, and SDLK_RMETA likewise.

Reset actuators and set autocenter might not actually be supported on all
 implementations. We'll just disable error checking since they aren't
 critical to neither opening the joystick nor the haptic subsystem.

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When graphic card has no GL_ARB_texture_rectangle YUV textures mapped with SDL_RenderCopy are stretched 2x horizontally, so only left half of texture is visible. This is due:
       data->texw = (GLfloat) (texture->w) / texture_w;
       data->texh = (GLfloat) texture->h / texture_h;
But afterwards texture_w /= 2 for YUV texture, but data->texw stays as it was before, while it should be multiplied 2x.

This bug can be seen in any program setting env variables: GL_APPLE_ycbcr_422=0 GL_EXT_texture_rectangle=0 GL_ARB_texture_rectangle=0

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The arrow keys and keypad arrow keys have almost the same scancodes!

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It was causing problems, and it really doesn't make sense to do it that way.

  Fixes Bugzilla #834.

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The change notes for SDL 1.3 will be moving to the wiki.

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Updated copyright to LGPL version 2.1 and year 2010

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Patrice Mandin

Hello,

I originally added pth support for threads in SDL 1.2 because on the Atari
platform we did not have any thread library.

I think pth support could be removed from SDL 1.3 for two reasons:

- Atari platform removed

- pth does not provides real (preemptive) threads, because it is user space,
and expect the application to call one of its function to give CPU to another
thread. So it is not exactly useful for applications, that expect threads to
run simultaneously.

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Shutting down the video shuts down the event loop, so don't do that after starting the event loop. :)

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Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.

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Date: Mon, 18 Jan 2010 17:46:35 +0800
Subject: [PATCH] Polish text input handling for Mac OS X

- Prevent crash caused by uninitialized video data
- Prevent beeping caused by unhandled Cocoa selectors (like moveUp:
  moveDown:, etc.)

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