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  1. 24 Jan, 2006 1 commit
    • Sam Lantinga's avatar
      te: Thu, 17 Apr 2003 11:25:26 -0700 · e0fbb3b5
      Sam Lantinga authored 
      From: "Jim"
Subject: [SDL] Frame buffer patches...

Would seem that GCC 3.2.2 promotes all signed values to unsigned if any single vlaue is unsigned in an expression...

for instance when calculating an elo touch position....evertyhign is an (int) except for cach_vinfo.xres which is unsigned.  THerefore if y
ou reverse the SDL_ELO_MIN_X and SDL_ELO_MAX_X values the resulging negative value pegs the expression to it's max.  Attached it the accumu
lated patch to typecast the unsigned values to (int)

- *dx = (cache_vinfo.xres - (cache_vinfo.xres * (input_x - ELO_MIN_X)) / width);

+ *dx = ((int)cache_vinfo.xres - ((int)cache_vinfo.xres * (input_x - ELO_MIN_X)) / width);

and also to provide quite failure to operations which have the screen currently locked...

The touch screen I'm using the original values were exactly opposite of any position I touched on the screen - evaluating the math the expr
ession SHOULD have handled reversing the min and max values - and after casting the unsigned .xres and .yres to a signed int - worked well.
..

Jim

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  3. 20 Jan, 2006 1 commit
    • Sam Lantinga's avatar
      Date: Thu, 19 Jan 2006 20:02:29 +0200 · ba553ad7
      Sam Lantinga authored 
      From: Vassilis Virvilis <vasvir@iit.demokritos.gr>
Subject: [SDL] Request: Please reconsider adding tag in SDL_Event

Hi,

Patch in question:

--- include/SDL_events.h        20 Aug 2004 18:57:01 -0000      1.11
+++ include/SDL_events.h        19 Jan 2006 17:35:09 -0000
@@ -214,7 +214,7 @@
  } SDL_SysWMEvent;

  /* General event structure */
-typedef union {
+typedef union SDL_Event {
         Uint8 type;
         SDL_ActiveEvent active;
         SDL_KeyboardEvent key;

Reasoning:
----------
1) Allows forward declaration of the SDL_Event union in C++. Please
note that in plain C it is possible to forward declare it.

2) Forward declaration is good because it allows encapsulation. It hides
the specific implementation and does not necessarily exposes SDL staff
to my appication's namespace

3) It can't harm plain C because tags are living in a different namespace
than typenames

4) It is already done like this in other places in SDL. Check for example
SDL_KeySym, and SDL_.*Event structures.

5) Right now I have to include SDL/event.h from a C++ header file. See 2)

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  5. 19 Jan, 2006 9 commits
  7. 14 Jan, 2006 1 commit
    • Ryan C. Gordon's avatar
      Catch X11 extension errors...since most of these are notifications that we · 37f69928
      Ryan C. Gordon authored 
       queried for a missing extension (such as the XiG vidmode one that most
 people don't have), and default Xlib behaviour is to write notification to
 stderr, this tends to generate incorrect bug reports.

Since we'll actually deal with the missing extension when querying for it,
 we ignore these errors in our hook. The rest continue to pass through to
 the default handler.

Fixes Bugzilla #42.

--ryan.

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  9. 13 Jan, 2006 4 commits
  11. 12 Jan, 2006 2 commits
    • Ryan C. Gordon's avatar
      Patched to compile. · 802fb960
      Ryan C. Gordon authored 
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    • Ryan C. Gordon's avatar
      Add XME hooks to X11 driver instead of relying on libxme...libxme hasn't · c1c1b65a
      Ryan C. Gordon authored 
       changed in five years, and it's a small .c file that just calls into the X11
 dependencies we already use elsewhere. Including it directly allows us to
 make use of the dynamic X11 code.

Fixes Bugzilla #41.

--ryan.

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  13. 10 Jan, 2006 1 commit
  15. 08 Jan, 2006 3 commits
    • Ryan C. Gordon's avatar
      From Bug #36: · 958cb54a
      Ryan C. Gordon authored 
      There are a couple of issues with the selection of Altivec alpha-blitting
routines in CalculateAlphaBlit() in src/video/SDL_Blit_A.c.

1) There's no check for the presence of Altivec when checking if the
Blit32to565PixelAlphaAltivec() routine can be selected.

2) Altivec cannot be used in video memory, and there's no check if the
destination surface is a hardware surface. (Alpha-blitting to a hardware
surface with GPU support is a bad idea, but somebody's bound to do it anyway.)

Patch to fix these attached.

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    • Patrice Mandin's avatar
      Rollback · 63a21208
      Patrice Mandin authored 
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    • Patrice Mandin's avatar
      Load default OpenGL library if needed at driver initialization · 107e0fbf
      Patrice Mandin authored 
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  17. 06 Jan, 2006 5 commits
  19. 05 Jan, 2006 6 commits
  21. 04 Jan, 2006 5 commits
  23. 02 Jan, 2006 2 commits