Commit Graph

17 Commits

Author SHA1 Message Date
Sam Lantinga
c59d9923b3 Implemented more flexible blending modes for accelerated renderers
This fixes bug 2594 - Propose new blend mode, SDL_BLENDMODE_BLEND_DSTA

	blendMode = SDL_ComposeCustomBlendMode(SDL_BLENDFACTOR_SRC_ALPHA,
	                                       SDL_BLENDFACTOR_ONE_MINUS_SRC_ALPHA,
	                                       SDL_BLENDOPERATION_ADD,
	                                       SDL_BLENDFACTOR_ZERO,
	                                       SDL_BLENDFACTOR_ONE,
	                                       SDL_BLENDOPERATION_ADD);

This fixes bug 2828 - Subtractive Blending

	blendMode = SDL_ComposeCustomBlendMode(SDL_BLENDFACTOR_SRC_ALPHA,
	                                       SDL_BLENDFACTOR_ONE,
	                                       SDL_BLENDOPERATION_SUBTRACT,
	                                       SDL_BLENDFACTOR_ZERO,
	                                       SDL_BLENDFACTOR_ONE,
	                                       SDL_BLENDOPERATION_SUBTRACT);


This goes partway to fixing bug 3684 - Add support for a pre-multiplied alpha blending mode

	blendMode = SDL_ComposeCustomBlendMode(SDL_BLENDFACTOR_ONE,
	                                       SDL_BLENDFACTOR_ONE_MINUS_SRC_ALPHA,
	                                       SDL_BLENDOPERATION_ADD,
	                                       SDL_BLENDFACTOR_ONE,
	                                       SDL_BLENDFACTOR_ONE_MINUS_SRC_ALPHA,
	                                       SDL_BLENDOPERATION_ADD);
2017-08-14 05:51:44 -07:00
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
45b774e3f7 Updated copyright for 2017 2017-01-01 18:33:28 -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
27d4f09929 Implemented SDL_GetHintBoolean() to make it easier to check boolean hints 2016-10-07 23:40:44 -07:00
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
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
42065e785d Updated copyright to 2016 2016-01-02 10:10:34 -08:00
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
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