This allows me to reduce the set of formats supported by the renderers to the most optimal set, for a nice speed boost.

--HG--
rename : src/video/SDL_yuv_mmx.c => src/render/SDL_yuv_mmx.c
rename : src/video/SDL_yuv_sw.c => src/render/SDL_yuv_sw.c
rename : src/video/SDL_yuv_sw_c.h => src/render/SDL_yuv_sw_c.h
rename : src/video/mmx.h => src/render/mmx.h

Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library.

--HG--
rename : src/video/windows/SDL_d3drender.c => src/render/direct3d/SDL_d3drender.c
rename : src/video/SDL_renderer_gl.c => src/render/opengl/SDL_renderer_gl.c
rename : src/video/SDL_renderer_gles.c => src/render/opengles/SDL_renderer_gles.c
rename : src/video/SDL_renderer_sw.c => src/render/software/SDL_renderer_sw.c

The rendering functions take a context so it's clear what window they're drawing to.  This also potentially opens to the door to multi-threaded rendering in the future.

Making the API simpler, the renderer present semantics are always having a backbuffer and then discarding it.  This is best for hardware accelerated rendering.

--HG--
extra : rebase_source : bbe6641fce097c79ccd47f4e1ea6b27683fd0acb

--HG--
extra : rebase_source : 880752438aae8f6526503d220bad91aabc3a7d1c

--HG--
extra : rebase_source : f06ea01caa64c8ad14170c723e5af52dad64d779

--HG--
extra : rebase_source : d00f0590e133604070f978762a6728b4afde02ca

Making the API simpler, scaling is always defined as linear interpolation and should be supported as much as possible on all renderers.

--HG--
extra : rebase_source : 4edac7fd162a2eb37a50159b958db37a03e944a5

--HG--
extra : rebase_source : 3fc2560c02393bf9e7c46360fc24f2585c9409be

 Vittorio Giovara      2011-02-01 02:25:48 PST

i have attached an updated patch that fixes this behaviour

 Vittorio Giovara      2011-02-01 02:21:50 PST

with the attached patch, the opengles context will always use the maximum
screensize available; this is particularly useful for supporting retina display
on latest iphone.

please note: Apple documentation warns that using the "upscaled" gl context
actually uses more memory and bandwitdh, so it might be worth to let the user
decide whether to disable it or not, either with a flag or a sdl function...

kwm@rainbow-runner.nl      2011-01-30 06:28:27 PST

Created attachment 562 [details]
Build fix with clang.

When building sdl 1.2.14 with the Clang compiler http://clang.llvm.org .
The build fails in src/video/mmx.h with the following error:

--------------------------------------------------
./src/video/SDL_RLEaccel.c:831:5: error: invalid operand for instruction
    CHOOSE_BLIT(RLECLIPBLIT, alpha, fmt);
    ^
./src/video/SDL_RLEaccel.c:831:17: note: instantiated from:
    CHOOSE_BLIT(RLECLIPBLIT, alpha, fmt);
                ^
./src/video/SDL_RLEaccel.c:831:5: note: instantiated from:
    CHOOSE_BLIT(RLECLIPBLIT, alpha, fmt);
    ^
./src/video/SDL_RLEaccel.c:647:23: note: instantiated from:
                                blitter(2, Uint8, ALPHA_BLIT16_565MMX); \
                                                  ^
./src/video/SDL_RLEaccel.c:282:4: note: instantiated from:
          movq_r2m(mm3, *dstp);                         \
          ^
In file included from ./src/video/SDL_RLEaccel.c:99:
./src/video/mmx.h:379:28: note: instantiated from:
#define movq_r2m(reg, var)      mmx_r2m(movq, reg, var)
                                ^
<scratch space>:192:1: note: instantiated from:
"movq"
^
<inline asm>:1:2: note: instantiated into assembly here
        movq %mm3, %dx
        ^
--------------------------------------------------

According to the clang developers this is a invalid inline assembly.
Using the attached patch from the last commit in the below bug report fixes the
compile.
More details from: http://llvm.org/bugs/show_bug.cgi?id=6730

Kees Bakker to sdl

The main.c for the template is still targeting SDL1.2. Here
is the patch to make it work for SDL1.3 (I'm hoping
the mailing lists accepts attachments.)

In this patch I have also changed the shell script that
assembles the Template. Since there is now only one lib
target (same name for "device" and "simulator" version)
I copy the simulator library to the destination with
the name libSDLSimulator.a. This is not a satisfactory
solution, because both libraries are included in the project
while only one is needed (depending on the selected
environment). However, I'm not fluent with Xcode to
say what a better solution would be.

Kind regards,
Kees Bakker

 Joseba García Echebarria      2010-12-15 01:55:22 PST

I believe the crash is caused by a check not being performed on wether an
SDL_Touch element is NULL before using it in the SDL_SendTouchMotion function
in src/events/SDL_touch.c around line 400.
Judging from the rest of the code, there's a missing

    if (!touch) {
        return 0;
    }

before using "touch" as SDL_GetFinger(), SDL_GetFingerIndexId() use
touch->num_fingers without checking.

I can attach a patch if you like. It seems pretty straightforward, though.

I have yet to discover why touch is being returned as NULL as this error is
only triggered when an actual gesture has been performed, maybe something
related to SDL_AddTouch()?

Next I'll be working on generalizing the event sources and making the event queue lock-free. :)