Commit Graph

206 Commits

Author SHA1 Message Date
Philipp Wiesemann
8aa147fa09 Fixed compiler warnings about type conversions.
Found by buildbot.
2017-08-04 23:00:30 +02:00
Sam Lantinga
9dbe5a9686 Fixed bug 3311 - Broken touch positions with SDL_RenderSetLogicalSize & HIGHDPI on iOS
Eric wing

Hi, I think I found a bug when using SDL_WINDOW_ALLOW_HIGHDPI with SDL_RenderSetLogicalSize on iOS. I use SDL_RenderSetLogicalSize for all my stuff. I just tried turning on SDL_WINDOW_ALLOW_HIGHDPI on iOS and suddenly all my touch/mouse positions are really broken/far-off-the-mark.

I actually don't have a real retina device (still) so I'm seeing this using the iOS simulator with a 6plus template.

Attached is a simple test program that can reproduce the problem. It uses RenderSetLogicalSize and draws some moving happy faces (to show the boundaries/space of the LogicalSize and that it is working correctly for that part).

When you click/touch, it will draw one more happy face where your button point is.

If you comment out SDL_WINDOW_ALLOW_HIGHDPI, everything works as expected. But if you compile with it in, the mouse coordinates seem really far off the mark. (Face appears far up and to the left.)


Alex Szpakowski on the mailing list suggests the problem is
"I believe this is a bug in SDL_Render?s platform-agnostic mouse coordinate scaling code. It assumes the units of the mouse coordinates are always in pixels, which isn?t the case where high-DPI is involved (regardless of whether iOS is used) ? they?re actually in ?DPI independent? coordinates (which matches the window size, but not the renderer output size)."

Additionally, if this is correct, the Mac under Retina is also probably affected too and "as well as any other platform SDL adds high-dpi support for in the future".
2017-08-02 13:38:46 -07:00
Ryan C. Gordon
18f2b27b73 Whoops, forgot to commit the actual fix. :) 2017-07-26 13:54:11 -04:00
Ryan C. Gordon
7ecc48c3ba Disable MMX inline assembly on Clang for now.
We should probably rewrite this with SSE compiler intrinsics or something
anyhow.
2017-07-26 13:43:25 -04:00
Sam Lantinga
36998b823e Fixed bug 3689 - MMX YUV renderer crash
felix

The functions in src/render/SDL_yuv_mmx.c contain the following inline assembly snippet:

        /* tap dance to workaround the inability to use %%ebx at will... */
        /*  move one thing to the stack... */
        "pushl $0\n"  /* save a slot on the stack. */
        "pushl %%ebx\n"  /* save %%ebx. */
        "movl %0, %%ebx\n"  /* put the thing in ebx. */
        "movl %%ebx,4(%%esp)\n"  /* put the thing in the stack slot. */
        "popl %%ebx\n"  /* get back %%ebx (the PIC register). */

Here's how it ended up in a binary on my old laptop:

   0xb5c17dbd <ColorRGBDitherYV12MMX1X+93>:	push   $0x0
   0xb5c17dbf <ColorRGBDitherYV12MMX1X+95>:	push   %ebx
   0xb5c17dc0 <ColorRGBDitherYV12MMX1X+96>:	mov    0xc(%esp),%ebx
   0xb5c17dc4 <ColorRGBDitherYV12MMX1X+100>:	mov    %ebx,0x4(%esp)
   0xb5c17dc8 <ColorRGBDitherYV12MMX1X+104>:	pop    %ebx

Apparently the compiler, oblivious to the fact that the assembly snippet manipulates the %esp register, decided to refer to the operand via that same register instead of via %ebp (I believe -fomit-frame-pointer enables this). This causes %ebx to be loaded with the wrong value, which later leads to a null pointer dereference.

Recent GCC can use the %ebx register normally: <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47602#c16>. There is even an explicit constraint "b" for allocating it.
2017-07-20 10:48:57 -07:00
Ryan C. Gordon
9288983682 Merged Eric Wing's overscan patch.
Fixes Bugzilla #2799.
2017-06-06 14:06:40 -04:00
Philipp Wiesemann
63b3e06f75 Corrected names of header file guards. 2017-06-03 23:00:15 +02:00
Ryan C. Gordon
02773811b3 render: GL_DestroyRender() should activate first.
Otherwise, we might destroy a different GL context's resources.
2017-05-18 21:00:11 -04:00
Philipp Wiesemann
266816b4aa Removed newlines from error messages. 2017-03-26 21:00:19 +02:00
Ryan C. Gordon
ca0bf151d5 Fix some more compiler warnings on armcc. 2017-03-03 16:38:17 -05:00
Ryan C. Gordon
07519a6b95 Removed a bunch of unnecessary #ifdefs. 2017-02-26 00:40:04 -05:00
David Ludwig
b13c443cd8 WinRT: removed buildbot debug code, pending further research 2017-02-24 20:49:14 -05:00
David Ludwig
f7bfa3b79e WinRT: more buildbot debug code 2017-02-24 20:19:28 -05:00
David Ludwig
ecb1eb823e WinRT: added code to help debug a buildbot error 2017-02-24 19:59:57 -05:00
Sam Lantinga
13433c4a61 Fixed bug 3569 - GL_UpdateViewport leaves PROJECTION matrix selected
Tom Seddon

GL_ActivateRenderer may call GL_UpdateViewport, which leaves the GL_PROJECTION matrix selected. But after GL_ResetState, the GL_MODELVIEW matrix is selected, suggesting that's the intended default state.

It seems at least like these should be consistent. Presumably GL_UpdateViewport should be doing a glMatrixMode(GL_MODELVIEW) before it finishes.
2017-01-27 21:23:27 -08:00
Sam Lantinga
9d9e92cf46 Fixed bug 3304 - Android black screen on resume
Richard Russell

Resuming from a suspended state results in a black screen.  This only happens when using GLES 1.1 (GLES 2 resumes correctly) and when the render target has been changed using SDL_SetRenderTarget.  This problem is new in 2.0.4.

The attached test case demonstrates the issue.

Sylvain Becker has apparently found a fix as follows:

"In the opengles leaf function (in 'src/render/opengles/SDL_render_gles.c'), it appears there is a call to 'GLES_ActivateRenderer' in 'GLES_SetRenderTarget', which is not present in opengles2. When commenting out this 'GLES_ActivateRenderer', it seems to resume fine".

This appears to fix the testcase perfectly, but I don't know whether it could have any undesirable side-effects.
2017-01-08 10:41:22 -08:00
Ryan C. Gordon
c1ac4c6835 Better fix for static analysis issue in SDL_DestroyRenderer().
Follow up fix for Bugzilla #3544.
2017-01-06 21:17:33 -05:00
Sam Lantinga
3df77ced1e Just roll back the entire portion of the commit from a8253d439914 which caused bug 3544 until we figure out what the right static analysis fix is. 2017-01-06 00:40:22 -08:00
Sam Lantinga
356c2eadf4 Fixed bug 3544 - Memory freeing bug in SDL_DestroyRenderer/SDL_DestroyTexture
felix

Here's a snippet of SDL_DestroyRenderer from hg revision 10746:7540ff5d0e0e:

    SDL_Texture *texture = NULL;
    SDL_Texture *nexttexture = NULL;
    /* ... */
    for (texture = renderer->textures; texture; texture = nexttexture) {
        nexttexture = texture->next;
        SDL_DestroyTexture(texture);
    }

SDL_DestroyTexture removes the texture from the linked list pointed to by the renderer and ends up calling SDL_DestroyTextureInternal, which contains this:

    if (texture->native) {
        SDL_DestroyTexture(texture->native);
    }

If it happens that texture->native is an alias of nexttexture two stack frames up, SDL_DestroyRenderer will end up trying to destroy an already freed texture. I've had this very situation happen in dosemu2.

Bug introduced in revision 10650:a8253d439914, which has a somewhat ironic description of "Fixed all known static analysis bugs"...
2017-01-06 00:32:06 -08:00
Sam Lantinga
45b774e3f7 Updated copyright for 2017 2017-01-01 18:33:28 -08:00
Ryan C. Gordon
fb5fd67ccb Fixed all known static analysis bugs, with checker-279 on macOS. 2016-11-24 21:41:09 -05:00
Ryan C. Gordon
e93e91f0b5 Pacify some GCC strict-aliasing compiler warnings. 2016-11-23 21:52:48 -05:00
Ryan C. Gordon
40c2a6fb55 Fixed more compiler warnings. 2016-11-23 11:49:26 -05:00
Sam Lantinga
3615633571 Renaming of guard header names to quiet -Wreserved-id-macro
Patch contributed by Sylvain
2016-11-20 21:34:54 -08:00
Philipp Wiesemann
97aa577589 Fixed empty parameter list in signatures of internal functions. 2016-11-16 22:08:51 +01:00
Sam Lantinga
0d24495b15 Removed unused constants
Except for SDL_bmp.c where they are historically interesting and I've left them in.
2016-11-15 01:24:58 -08:00
Sam Lantinga
ab8bd3d96b Fixed bug 3359 - Software renderer does incorrect blending with SDL_RenderCopyEx
Simon Hug

The software renderer produces incorrect results when blending textures at an angle with certain blend modes. It seems that there were some edge cases that weren't considered when the SW_RenderCopyEx function was last changed. Or another bug possibly covered up the problem. (More on that in another bug report.)

Most of the issues come from the fact that the rotating function sets a black colorkey. This is problematic because black is most likely appearing in the surface and the final blit will ignore these pixels. Unless a colorkey is already set (the software renderer currently never sets one), it's very hard to find a free color. Of course it could scan over the whole image until one is found, but that seems inefficient.

The following blend modes have issues when drawn at an angle.

NONE: The black pixels get ignored, making them essentially transparent. This breaks the 'dstRGBA = srcRGBA' definition of the NONE blend mode.

MOD: Again, the black pixels get ignored. This also breaks the 'dstRGB = dstRGB * srcRGB' definition of the MOD blend mode, where black pixels would make the destination black as well. A white colorkey will work though, with some preparations.

BLEND: There are some issues when blending a texture with a translucent RGBA target texture. I - uh - forgot what the problem here exactly is.

This patch fixes the issues mentioned above. It mainly changes the code so it tries to do things without the colorkey and removes the automatic format conversion part from the SDLgfx_rotateSurface function. Getting the format right is something the caller has to do now and the required code has been added to the SW_RenderCopyEx function.

There's a small change to the SW_CreateTexture function. RLE encoding a surface with an alpha mask can be a lossy process. Depending on how the user uses the RGBA channels, this may be undesired. The change that surfaces with an alpha mask don't get encoded makes the software renderer consistent with the other renderers.

The SW_RenderCopyEx function now does these steps: Lock the source surface if necessary. Create a clone of the source by using the pixel buffer directly. Check the format and set a flag if a conversion is necessary. Check if scaling or cropping is necessary and set the flag for that as well. Check if color and alpha modulation has to be done before the rotate. Check if the source is an opaque surface. If not, it creates a mask surface that is necessary for the NONE blend mode. If any of the flags were set, a new surface is created and the source will be converted, scaled, cropped, and modulated. The rest of the function stays somewhat the same. The mask also needs to be rotated of course and then there is the NONE blend mode...

It's surprisingly hard to get the pixel from a rotated surface to the destination buffer without affecting the pixel outside the rotated area. I found a way to do this with three blits which is pretty hard on the performance. Perhaps someone has an idea how to do this faster?

As mentioned above, the SDLgfx_rotateSurface now only takes 8-bit paletted or 32-bit with alpha mask surfaces. It additionally sets the new surfaces up for the MOD blend mode.

I shortly tested the 8-bit path of SDLgfx_rotateSurface and it seemed to work so far. This path is not used by the software renderer anyway.
2016-11-15 01:12:27 -08:00
Sam Lantinga
57d01d7d67 Patch from Sylvain to fix clang warnings 2016-11-13 22:57:41 -08:00
Sam Lantinga
77000ff8cb Fixed bug 1822 - Inconsistent renderer behaviour on rotation
Sylvain 2016-11-07 08:49:34 UTC

when rotated +90 or -90, some transparent lines appears, though there is no Alpha or ColorKey.

if you set a dummy colorkey, it will remove the line ...
if you set a some alpha mod, the +90/-90 get transparent but not the 0/180  ...
2016-11-11 13:38:39 -08:00
Sam Lantinga
057bca8a68 Better fix for last point in D3D11 renderer, thanks to Nader Golbaz 2016-11-06 15:15:32 -08:00
Sam Lantinga
330e2952d8 Fixed bug 2421 for D3D11 - SDL_RenderCopyEx off by one when rotating by 90 and -90.
Nader Golbaz

Updated patch for direct3d renderers
2016-11-06 08:47:40 -08:00
Sam Lantinga
4ed4997cc4 Fixed bug 2421 for D3D9 - SDL_RenderCopyEx off by one when rotating by 90 and -90
Nader Golbaz

Updated patch for direct3d renderers
2016-11-06 08:42:46 -08:00
Sam Lantinga
8e2634eb13 Fixed divide by zero if setting integer scale without setting logical width and height 2016-10-14 00:51:57 -07:00
Sam Lantinga
e4af8ce968 Fixed typo getting the drawable size 2016-10-13 04:57:31 -07:00
Sam Lantinga
662f966cd9 Fixed bug 3355 - false "Invalid renderer" after creating an "opengles2" renderer.
Call SDL_GL_GetDrawableSize() directly because we may be in the initialization path and SDL_GetRendererOutputSize() will fail because the renderer magic isn't set up yet.
2016-10-13 08:46:34 -07:00
Sam Lantinga
36e40d30fc Fixed bug 2923 - Add SDL_PIXELFORMAT_RGBA32 for byte-wise 32bit RGBA data
Daniel Gibson

Ok, I followed the simple approach of just making SDL_PIXELFORMAT_RGBA32 an alias of SDL_PIXELFORMAT_RGBA8888/SDL_PIXELFORMAT_ABGR8888, depending on endianess. And I did the same for SDL_PIXELFORMAT_ARGB32, .._BGRA, .._ABGR.

SDL_GetPixelFormatName() will of course return SDL_PIXELFORMAT_RGBA8888 (or SDL_PIXELFORMAT_ABGR8888) instead of SDL_PIXELFORMAT_RGBA32, but as long as that's mentioned in the docs it shouldn't be a problem.
2016-10-11 23:19:05 -07:00
Steffen Pankratz
564c790f33 Fixed a memory leak in function GL_RenderReadPixels 2016-10-11 17:31:29 +02:00
Sam Lantinga
27d4f09929 Implemented SDL_GetHintBoolean() to make it easier to check boolean hints 2016-10-07 23:40:44 -07:00
Eric Wing
bb3cb4f42a overscan (feature for SDL_RenderSetLogicalSize): Fix to ignore overscan hint when using the Direct3D 9 backend.
D39 does not support negative viewport values which the current implementation relies on.
D3D11 does support negative viewport values so that will continue working.
Refer to Bug 2799.
2016-04-04 19:25:24 -07:00
Sam Lantinga
9c48365524 Fixed bug 3029 - software renderer cuts off edges when rotate-blitting with a multiple of 90 degrees
Adam M.

When doing a rotated texture copy with the software renderer, where the angle is a multiple of 90 degrees, one or two edges of the image get cut off. This is because of the following line in sw_rotate.c:
    if ((unsigned)dx < (unsigned)sw && (unsigned)dy < (unsigned)sh) {
which is effectively saying:
    if (dx >= 0 && dx < src->w-1 && dy >= 0 && dy < src->h-1) {

As a result, it doesn't process pixels in the right column or bottom row of the source image (except when they're accessed as part of the bilinear filtering for nearby pixels). This causes it to look like the edges are cut off, and it's especially obvious with an exact multiple of 90 degrees.
2016-10-07 18:00:30 -07:00
Sam Lantinga
bf076c22ad Fixed bug 2957 - De-reference rz_src without NULL check in SDLgfx_rotateSurface function
Nitz

In function SDLgfx_rotateSurface:

rz_dst =
            SDL_CreateRGBSurface(SDL_SWSURFACE, dstwidth, dstheight + GUARD_ROWS,
            rz_src->format->Rmask, rz_src->format->Gmask,
            rz_src->format->Bmask, rz_src->format->Amask);

Here rz_src get De-referenced without NULL check, which is risky.
2016-10-07 17:30:21 -07:00
Philipp Wiesemann
67bf5cac1a Fixed wrong pixel format if reading pixels from OpenGL renderer. 2016-10-02 22:32:35 +02:00
David Ludwig
969c316797 Fixed MinGW-w64 build warnings in SDL_render_d3d11.c
Some of these were legitimate bugs, including:
- a malformed SDL_snprintf call
- a probably-invalid enum comparison
2016-10-01 18:49:15 -04:00
Sam Lantinga
702d9348ac Added SDL prefix to local IID constants 2016-10-01 15:23:43 -07:00
David Ludwig
7851eb0836 Fixed bug 3437 - build error for WinRT/UWP .dlls, caused by fix for SDL bug 3336
This fix has been tested with both MinGW-w64, and Visual C++ 2012-2015.
2016-10-01 18:10:15 -04:00
Sam Lantinga
fa0f417631 Fixed build warnings and errors 2016-10-01 14:48:18 -07:00
Sam Lantinga
c8cfccc2f1 Fixed bug 3116 - renderer->hidden in SDL_RenderCopy(Ex)
Daniel

Seems like check of the visibility of renderer (renderer->hidden) is missing in SDL_RenderCopyEx.

In SDL_RenderCopy it should be done much earlier (after checking support for RenderCopyEx, line 1750).
2016-10-01 14:31:00 -07:00
Sam Lantinga
ecea3c4a24 Fixed bug 3169 - GLES2_CreateRenderer does not check SDL_GL_GetAttribute result, causing use of uninitialized data
Yann Dirson

When attempting to force use of opengles2 renderer with:

    int wanted_renderer = -1;
     for (int i = 0; i < numrenderers; i++) {
 	SDL_RendererInfo renderer_info;
 	if (SDL_GetRenderDriverInfo(i, &renderer_info) != 0) {
 	    SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't get renderer driver info: %s\n",
 			 SDL_GetError());
 	    quit(2);
 	}
 	std::cerr << "Renderer " << i << " '" << renderer_info.name << "': flags=0x"
 		  << std::hex << renderer_info.flags << std::dec
 		  << ", " << renderer_info.num_texture_formats << " texture formats, max="
 		  << renderer_info.max_texture_width << "x"
 		  << renderer_info.max_texture_height << "\n";
	if (!strcmp(renderer_info.name, "opengles2")) {
	    std::cerr << " selecting!\n";
	    wanted_renderer = i;
	}
     }

    renderer = SDL_CreateRenderer(window, wanted_renderer, 0);

... on banana pi or raspberry pi I get an error like the following (the actual
context profile value varies, being used uninitialized)

 ERROR: Couldn't create renderer: Unknown OpenGL context profile 900

With this patch I get the following, which should help more pointing to a real problem:

 ERROR: Couldn't create renderer: Failed getting OpenGL glGetString entry point

I pushed a patch (based on master branch of unofficial git mirror):

550389c89f


I'll be opening a different bug for the underlying issue.
2016-10-01 13:33:32 -07:00
Sam Lantinga
67901f537c Fixed bug 3174 - SDL_SetRenderTarget clip rect
Marcel Bakker

In SDL_SetRenderTarget(),
i think the intended behavior was to clear the clip rect when a new target is set.
2016-10-01 13:29:30 -07:00
Sam Lantinga
86b4319d21 Fixed bug 3422 - OpenGL ES 1.1 renderer: SDL_UpdateTexture breaks later function calls (missing glDisable)
ny00

Using the OpenGL ES 1.1 renderer, after updating a texture with SDL_UpdateTexture (or SDL_UnlockTexture), a following call to SDL_RenderFillRect draws a rectangle with the wrong color (which appears to be the same as the texture's top-left pixel).

Comparing SDL_render_gles.c:GLES_UpdateTexture to SDL_render_gl.c:GL_UpdateTexture, a missing call to glDisable appears to be the cause. After adding it back, the bug is resolved.
2016-10-01 13:07:36 -07:00
Sam Lantinga
77305d47c2 Fixed bug 3345 - SDL_RenderClear inconsistency with ClipRect
Simon Hug

The description of the SDL_RenderClear function in the SDL_render.h header says the following:

"This function clears the entire rendering target, ignoring the viewport."

The word "entire" implies that the clipping rectangle set with SDL_RenderSetClipRect also gets ignored. This is left somewhat ambiguous if only the viewport is mentioned. Minor thing, but let's see what the implementations actually do.

The software renderer ignores the clipping rectangle when clearing. It even has a comment on this: /* By definition the clear ignores the clip rect */

Most other render drivers (opengl, opengles, opengles2, direct3d, and psp [I assume. Can't test it.]) use the scissor test for the ClipRect and don't disable it when clearing. Clearing will only happen within the clipping rectangle for these drivers.

An exception is direct3d11 which uses a clear function that ignores the scissor test.
2016-10-01 11:46:32 -07:00
Sam Lantinga
89c868f4f8 Fixed bug 3347 - OpenGL ES renderer doesn't flip projection matrix for target textures
Simon Hug

When updating the viewport in GLES_UpdateViewport, the OpenGL ES renderer doesn't flip the projection matrix for target textures. The lines, rectangles and textures (if drawn with glDrawArrays) are upside down when drawing to target textures.
2016-10-01 11:40:57 -07:00
Sam Lantinga
061cc5e75f Fixed bug 3349 - GLES2_RenderReadPixels doesn't use target texture format
Simon Hug

The OpenGL ES 2 renderer does not check the target texture format when using SDL_RenderReadPixels and just always uses ABGR8888. This can result in swapped or wrong colors.

The attached patch adds a check and selects the target texture format, if a texture is set as the target.
2016-10-01 11:38:53 -07:00
Sam Lantinga
51d6371ec1 Fixed bug 3350 - GL renderers don't need to flip rows after reading back pixels from the target texture
Simon Hug

All OpenGL renderers always flip the rows of the pixels that come from glReadPixels. This is unnecessary for target textures since these are already top down.

Also, the rect->y value can be used directly for target textures for the same reason. I don't see any code that would handle the logical render size for target textures. Or am I missing something?

The attached patch makes the renderers only the flip rows if the data comes from the default framebuffer.
2016-10-01 11:34:04 -07:00
Sam Lantinga
a42c396a57 Fixed bug 3361 - Texture color modulation doesn't work with active NONE blend mode (opengl and opengles)
Simon Hug

The GL_SetBlendMode and GLES_SetBlendMode functions of the opengl and opengles renderers call the glTexEnvf to set the texture env mode to either GL_MODULATE (the default) or GL_REPLACE for the NONE blend mode. Using GL_REPLACE disables color and alpha modulation for textures.

These glTexEnv calls were put in the SetBlendMode function back in 2006 [1], but there the NONE code still used the GL_DECAL mode. The GL_REPLACE mode came in 2008 [2]. I'm a bit confused why that wasn't always GL_MODULATE and a bit surprised nobody reported that yet (unless I missed it). I guess only a few use the gles renderer and the newish shaders mask the issue.
2016-10-01 11:04:45 -07:00
Sam Lantinga
3f1b1629c4 Fixed bug 3362 - OpenGL renderer doesn't check if framebuffers are supported when creating target textures
Simon Hug

The GL_CreateTexture function doesn't have any checks for the case where the driver doesn't support the framebuffer object extension. It will call into GL_GetFBO which will call the non-existent glGenFramebuffersEXT.

Also, for some reason GL_CreateContext always sets the SDL_RENDERER_TARGETTEXTURE info flag, even if it is not supported. Changeset cc226dce7536 [1] makes this change, but doesn't explain why. It seems to me like the code would already have taken care of this [2].

The attached patch adds some checks and stops SDL from reporting render target support if there is none. The application can then properly inform the user instead of just crashing.
2016-10-01 10:52:24 -07:00
Sam Lantinga
2ccb46cebc Fixed bug 3373 - OpenGL implementation differences of glDrawTexfOES
Simon Hug

It seems not everyone implemented glDrawTexfOES the same. Intel and Mesa ignore the viewport entirely, whereas the Raspberry Pi implementation offsets the coordinates and does viewport clipping.

The glDrawTexfOES extension text [1] for the function says "Xs and Ys are given directly in window (viewport) coordinates." I guess this wasn't clear enough.

Alex Szpakowski

Honestly I'd probably remove that codepath from SDL_Render entirely. It's an OpenGL ES 1-specific extension that isn't likely to give huge performance gains and adds additional maintenance overhead to SDL_Render while also having bugs in some drivers (as seen here).
2016-10-01 10:43:01 -07:00
Sam Lantinga
b7e45f8a1a Fixed bug 3336 - Failure to build with MinGW-w64
Kai Sterker
There are already patches available from mingw64 that fix the issue

https://github.com/Alexpux/MINGW-packages/tree/master/mingw-w64-SDL2

With those applied, I could compile SDL2 without problems. But of course, it would be preferable if SDL built cleanly from source.
2016-10-01 10:28:00 -07:00
Sam Lantinga
86d4b09914 Fixed spacing 2016-09-13 18:44:28 -07:00
Alex Szpakowski
f050576665 Initial Apple TV / tvOS support.
The Apple TV remote is currently exposed as a joystick with its touch surface treated as two axes. Key presses are also generated when its buttons and touch surface are used.

A new hint has been added to help deal with deciding whether to background the app when the remote's menu button is pressed: SDL_HINT_APPLE_TV_CONTROLLER_UI_EVENTS.
2016-09-13 22:18:06 -03:00
David Ludwig
23af328bb0 Fixed Bug 3147 - Windows: Crash when resizing Window since hg 1f9d57965528
Thanks for the fix, Gab!
2016-06-24 22:17:56 -04:00
Philipp Wiesemann
831597f714 PSP: Fixed returning success from unsupported SDL_RenderReadPixels().
This also fixed the missing error message.
2016-04-01 21:13:58 +02:00
Philipp Wiesemann
d1e4814120 PSP: Fixed returning success for unsupported SDL_SetTextureColorMod().
Partially fixes Bugzilla #3298.
2016-04-01 21:12:37 +02:00
Philipp Wiesemann
0a1999dfd2 Fixed compile warnings about type conversion.
Found by buildbot.
2016-01-16 21:25:10 +01:00
Ethan Lee
167cf14c1f SDL_RenderSetIntegerScale 2016-01-05 16:39:18 -05:00
Eric Wing
d77a55738b merged SDL 2.0.4 rc2 2015-06-21 04:04:14 -07:00
Sam Lantinga
d763a9f64d Fixed bug 2538 - SDL_SetTextureAlphaMod does not work with SDL_FlipMode or rotation in the software renderer
Adam M.

When setting a texture alpha mod other than 255 and also specifying a flip mode in the software renderer, the rendering fails. When the texture has an alpha channel, it becomes invisible when flipped. When the texture does not have an alpha channel, it is flipped but the colors are wrong: the alpha mod makes the texture darker rather than more translucent.

0) Initialize a software renderer.
1) Load 16-bit 565 or 32-bit texture.
2) Set texture blend mode to BLEND.
3) Set texture alpha mod to 150.
4) Draw the texture flipped horizontally and/or vertically.
2015-06-19 23:22:53 -07:00
Sam Lantinga
b7ede6cc47 Fixed bug 1550 - SDL_RenderCopy/CopyEx in software should optionally render 8bit alpha
Adam M.

There are three problems in the code that I see.
1. SW_RenderCopyEx enables a color key on surface_scaled even if the source surface didn't have a color key.
2. SW_RenderCopyEx doesn't copy blend mode, color mod, or alpha mod from src to surface_scaled.
3. When SDL_BlitScaled(src, srcrect, surface_scaled, &tmp_rect) is called, it blends the src pixels into surface_scaled instead of overwriting them (if src has blending, etc. enabled).

I've attached a patch that 1) fixes the three problems that I mentioned, 2) adds the requested performance improvement of using the regular blit function if no rotation or flipping is needed, 3) avoids cloning the source surface if no stretching is required, and simplifies the rotation code slightly.
2015-06-19 23:20:43 -07:00
Sam Lantinga
82ae4f6fc5 [mq]: 3027_rleperf.diff 2015-06-19 22:12:47 -07:00
Eric Wing
27fab8f4bb merged SDL 2.0.4rc1+ 2015-06-17 20:03:08 -07:00
Sam Lantinga
a4eb0dea86 Fixed bug 2908 - Fix clang warnings
Simon Deschenes

My build system still shows warning as errors.

The first warning says that the member named instances can never be false (or NULL) as it is a static array, and we should check for instances[index] which we do anyway.
2015-06-14 19:10:51 -07:00
Philipp Wiesemann
fd8b7c1ca3 Fixed comments at conditional compilation macros. 2015-06-05 19:41:18 +02:00
Sam Lantinga
38549a7bba Fixed bug 2625 - Direct3D9 with SDL_TEXTUREACCESS_TARGET textures causes an application crash
Roberto

I have debugged the code checking the function calls when Direct3D is the renderer, remember that with software and OpenGL renderers, this issue is not happening.

- Create the texture:
SDL_Texture *pTex = SDL_CreateTexture(pRenderer, iFormat, SDL_TEXTUREACCESS_TARGET, pSurf->w, pSurf->h);

- Update the texture:
SDL_UpdateTexture(pTex, NULL, pSurf->pixels, pSurf->pitch);
  SDL_render.c, SDL_UpdateTexture(): return renderer->UpdateTexture(renderer, texture, rect, pixels, pitch);
    SDL_render_d3d.c, D3D_UpdateTexture(): if (D3D_UpdateTextureRep(data->device, &texturedata->texture, texture->format, rect->x, rect->y, rect->w, rect->h, pixels, pitch) < 0) {
      SDL_render_d3d.c, D3D_UpdateTextureRep(): if (D3D_CreateStagingTexture(device, texture) < 0) {
        SDL_render_d3d.c, D3D_CreateStagingTexture(): result = IDirect3DDevice9_CreateTexture(..., D3DPOOL_SYSTEMMEM, ...) --> FAIL! with INVALIDCALL code

After checking a bit the Microsoft documentation, I found this:

D3DUSAGE_RENDERTARGET can only be used with D3DPOOL_DEFAULT. (https://msdn.microsoft.com/en-us/library/windows/desktop/bb172625%28v=vs.85%29.aspx)

The call that fails, is using D3DUSAGE_RENDERTARGET with D3DPOOL_SYSTEMMEM which is unsupported, hence the INVALIDCALL return code.
2015-06-04 00:56:11 -07:00
Sam Lantinga
da1909755b Fixed clip rectangle calculation when there is a viewport offset 2015-05-28 18:57:10 -07:00
Sam Lantinga
6a3ad8a998 Fixed bug 2367 - Bad mouse motion coordinates with two windows where one has changed logical size
Andreas Ragnerstam

I have two windows where one has a renderer where the logical size has been changed with SDL_RenderSetLogicalSize. When I get SDL_MOUSEMOTION events belonging to the non-scaled window these will have been scaled with the factor of the scaled window, which is not expected.

Adding some printf debugging to SDL_RendererEventWatch of SDL_render.c, where (event->type == SDL_MOUSEMOTION), I found that for every mouse motion SDL_RendererEventWatch is called twice and the event->motion.x and event.motion.y are set twice for the event, once for each renderer where only the last one set will be saved to the event struct. This will work fine if both renderers have the same scale, but otherwise the motion coordinates will be scaled for the renderer belonging to another window than the mouse was moved in.

I guess one solution would be to check that window == renderer->window for SDL_MOUSEMOTION events, similar to what is done for when SDL_WINDOWEVENT events.

I get the same error on both X11 and Windows.
The same problem also exists for SDL_MOUSEBUTTONDOWN and SDL_MOUSEBUTTONUP events.
2015-05-28 12:18:05 -07:00
Sam Lantinga
42065e785d Updated copyright to 2016 2016-01-02 10:10:34 -08:00
Ryan C. Gordon
f893ce3d3e OpenGL+GLES renderers: Fixed incorrect clip rectangle coords (thanks, Marcel!).
Fixes Bugzilla #2700.
2015-12-28 15:15:58 -05:00
David Ludwig
9e9ef5ad31 Fixed bug 3202 - Fix renderer visibility on a window maximized directly from the minimized state
Many thanks to id.zeta for details on the bug, and for the fix!
2015-12-27 17:55:45 -05:00
Alex Szpakowski
0c463d770b SDL_GL_GetAttribute: If a GL context isn't active, only return failure when the specified attribute needs an active GL context to be queried. 2015-12-10 20:25:34 -04:00
David Ludwig
25abce513d WinRT: added Win10/UWP (Universal Windows Platform) support
"UWP" appears to be Microsoft's new name for WinRT/Windows-Store APIs.

This set of changes updates SDL's WinRT backends to support the Win10 flavor
of WinRT.  It has been tested on Win10 on a desktop.  In theory, it should
also support Win10 on other devices (phone, Xbox One, etc.), however further
patches may be necessary.

This adds:
- a set of MSVC 2015 project files, for use in creating UWP apps
- modifications to various pieces of SDL, in order to compile via MSVC 2015 +
  the Win10 API set
- enables SDL_Window resizing and programmatic-fullscreen toggling, when using
  the WinRT backend
- WinRT README updates
2015-11-29 19:33:11 -05:00
David Ludwig
623898f70b WinRT: lots of display and windowing related fixes
This change-set fixes a lot of windowing related bugs, especially with
regards to Windows 8.x apps running on Windows 10 (which was the driver for
this work).  The primary fixes include:
* listed display modes were wrong, especially when launching apps into a
  non-fullscreen space
* reported window flags were often wrong, especially on Windows 10
* fullscreen/windowed mode switches weren't failing (they are not
  programmatically possible in Win 8.x apps).
2015-11-26 00:41:39 -05:00
Philipp Wiesemann
4c72d39ce7 D3D11: Fixed SDL_RenderDrawPoints() ignoring input after the first 128 points.
If a limit would be needed then count should be adapted before stack allocation.
2015-10-15 22:26:21 +02:00
Philipp Wiesemann
0856a7ef34 Changed an error return value from 0 to NULL for consistency. 2015-08-21 23:50:37 +02:00
Ryan C. Gordon
ded3a16e72 Fixed compiler warning about shadowed local variables. 2015-06-23 01:44:44 -04:00
Philipp Wiesemann
0e45984fa0 Fixed crash if initialization of EGL failed but was tried again later.
The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly
uninitialized data structure if loading the library first failed. A later try to
use EGL then skipped initialization and assumed it was previously successful
because the data structure now already existed. This led to at least one crash
in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was
dereferenced to make a call to eglBindAPI().
2015-06-21 17:33:46 +02:00
Eric Wing
7d5147bad3 resync'd overscan patch with SDL mainline. 2015-04-17 21:25:19 -07:00
Philipp Wiesemann
26b4898ac2 Windows: Fixed format string for error message. 2015-04-11 20:43:11 +02:00
Philipp Wiesemann
7bd7221997 PSP: Removed empty statement. 2015-04-10 23:45:13 +02:00
Alex Szpakowski
df98b11c47 Merged default into iOS-improvements 2015-04-06 15:26:37 -03:00
Alex Szpakowski
ea5d1a8a3f Merged default into iOS-improvements 2015-01-15 01:15:24 -04:00
Philipp Wiesemann
e3f9bf3378 Fixed two inconsistencies on failed allocation. 2015-02-08 22:50:16 +01:00
David Ludwig
78f3a80cf2 WinRT: made note that VSync is always enabled on WinPhone, due to OS
Windows Phone does not appear to allow VSync to be turned off.  Doing so appears
to either result in content not getting drawn (when the D3D debug runtime is
turned off), or forcing VSync back on and logging an error (when the D3D debug
runtime is turned on).

VSync had been getting turned on anyways, this change just notes such:
- via the WinRT README
- by always setting the SDL_RENDERER_PRESENTVSYNC flag when creating an
  SDL_Renderer on Windows Phone
2015-02-08 15:44:15 -05:00
Philipp Wiesemann
fe586d077f Fixed three memory leaks on failed allocation. 2015-02-08 21:25:37 +01:00
Philipp Wiesemann
b48e54aafe Fixed bug 2802 - [patch] Fix android build compiling in wrong filesystem implementation
Jonas Kulla

The configure script didn't differentiate between Linux and Android, unconditionally compiling in the unix implementation of SDL_sysfilesystem.c.

I'm probably one of the very few people building SDL for android using classic configure + standalone toolchain, so this has gone undetected all along.
2015-01-26 22:00:29 +01:00
Ryan C. Gordon
f5bbbe417d GLES2: Only use VBOs for Emscripten (for now).
This is causing a regression on actual iOS hardware, which we should revisit
 after 2.0.4 ships.
2014-12-26 22:30:19 -05:00
Ryan C. Gordon
d5a578531b Drop out of SDL_UpdateTexture() early if the rectangle is zero pixels.
Hopefully makes static analysis happy about a zero-byte malloc elsewhere.
2015-05-26 16:42:36 -04:00
Sam Lantinga
2c4a6ea0a2 Updated the copyright year to 2015 2015-05-26 06:27:46 -07:00
Alex Szpakowski
fcee3e734d Code style cleanup in the GLES and GLES2 render backends. 2015-05-16 17:35:36 -03:00
Ryan C. Gordon
fe40a17224 Initial merge of Emscripten port!
With this commit, you can compile SDL2 with Emscripten
( http://emscripten.org/ ), and make your SDL-based C/C++ program
into a web app.

This port was due to the efforts of several people, including: Charlie Birks,
Sathyanarayanan Gunasekaran, Jukka Jyl?nki, Alon Zakai, Edward Rudd,
Bruce Mitchener, and Martin Gerhardy. (Thanks, everyone!)
2014-12-18 00:19:52 -05:00
Eric Wing
313881175d Adds support to control the scaling policy/mode of SDL_RenderSetLogicalSize for both letterbox (current behavior) and a new overscan mode (expand to fill the entire screen, even if some parts draw off the screen).
The expected use case is for games that are designed with multiple aspect ratios already in mind and leave optional margins on the edges of the game which won't hurt if they are cut off.

An example use case is a game is designed for wide-screen/16:9, but then wants to deploy on an iPad which is 4:3. Normally, SDL will letterbox, which will shrink things and result in wasted space. But the designer already thought about 4:3 and designed the edges of the game so they could be cut off without any functional loss. So rather than wasting space with letterboxing, "overscan" mode will zoom the rendering to fill up the entire screen. Parts on the edges will be drawn offscreen, but since the game was already designed with this in mind, it is fine. The end result is the iPad (4:3) experience is much better since it feels like a game designed for that screen aspect ratio.

This patch introduces a new SDL_hint: SDL_HINT_RENDER_LOGICAL_SIZE_MODE.
Valid values are "letterbox" or "0" for letterboxing and "overscan" or "1" for overscan.
The default mode is letterbox to preserve existing behavior.

// Example usage:
SDL_SetHint(SDL_HINT_RENDER_LOGICAL_SIZE_MODE, "overscan");
SDL_RenderSetLogicalSize(renderer, SCREEN_WIDTH, SCREEN_HEIGHT);
2014-12-03 04:41:26 -08:00
Alex Szpakowski
ba6392d79d Fixed SDL_GetRendererOutputSize on iOS when high-DPI mode is enabled on a Retina device. 2014-12-01 07:31:22 -04:00
David Ludwig
70438be272 WinRT: fixed bug whereby SDL would override an app's default orientation
WinRT apps can set a default, preferred orientation via a .appxmanifest file.
SDL was overriding this on app startup, and making the app use all possible
orientations (landscape and portrait).

Thanks to Eric Wing for the heads up on this!
2014-12-03 10:55:23 -05:00
Philipp Wiesemann
9c398852e6 Corrected header file documentation comment. 2014-11-22 22:20:40 +01:00
David Ludwig
20a6c623c3 WinRT: fixed bug whereby offscreen-rendered content could get improperly rotated
Attributes on the host device's rotation were getting applied to offscreen
textures in an invalid manner.  This was causing some apps to look different,
depending on how the device was rotated.
2014-10-14 09:53:46 -04:00
Pierre-Loup A. Griffais
24c86b5501 [X11] Reconcile logical keyboard state with physical state on FocusIn
since the window system doesn't do it for us like other platforms.

This prevents sticky keys and missed keys when going in and out
of focus, for example Alt would appear to stick if switching away
from an SDL app with Alt-Tab and had to be pressed again.

CR: Sam
2014-09-11 19:24:42 -07:00
Ryan C. Gordon
b72938c861 Windows: Always set the system timer resolution to 1ms by default.
An existing hint lets apps that don't need the timer resolution changed avoid
this, to save battery, etc, but this fixes several problems in timing, audio
callbacks not firing fast enough, etc.

Fixes Bugzilla #2944.
2015-04-20 12:22:44 -04:00