Simple Directmedia Layer
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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
VisualC audio: Removed internal SDL_audiomem.h and macros. 2016-08-05 01:44:15 -04:00
VisualC-WinRT Merge audio capture work back into the mainline. 2016-08-28 13:36:13 -04:00
Xcode Updated version to 2.0.5 in preparation for release 2016-09-28 22:24:01 -07:00
Xcode-iOS iOS: Removed unused constant in demo. 2016-09-30 23:31:24 +02:00
acinclude Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
android-project Commit KEYCODE_SPACE as text input on Android 2016-07-04 10:39:32 -04:00
build-scripts emscripten-buildbot.sh: exit with an error if configure/make fail. 2016-09-06 12:18:52 -04:00
cmake Fix CMake CMAKE_REQUIRED_FLAGS handling to preserve existing CMake flags required by Emscripten toolchain. 2016-09-13 00:03:50 -07:00
debian Replaced SDL_qsort with public domain code from PDCLib: http://pdclib.e43.eu/ 2016-02-15 03:16:46 -05:00
docs Updated Linux notes on building with Mir and Wayland support. 2016-09-29 12:04:07 -04:00
include Fixed bug 3345 - SDL_RenderClear inconsistency with ClipRect 2016-10-01 11:46:32 -07:00
premake Enable SDL_LoadObject on iOS 8+ and tvOS. 2016-09-25 15:02:06 -03:00
src Fixed bug 3345 - SDL_RenderClear inconsistency with ClipRect 2016-10-01 11:46:32 -07:00
test Fixed compiling of three test programs with C++. 2016-09-21 23:06:38 +02:00
visualtest Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
.hgignore audio: Initial bits to enable audio capture support. 2016-08-01 00:18:56 -04:00
Android.mk Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
BUGS.txt BUGS.txt: Bugzilla supports SSL; changed link to https:// ... 2016-08-01 13:36:43 -04:00
CMakeLists.txt Updated version to 2.0.5 in preparation for release 2016-09-28 22:24:01 -07:00
COPYING.txt Updated copyright to 2016 2016-01-02 10:10:34 -08:00
CREDITS.txt Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
INSTALL.txt Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
Makefile.in wayland: Build own version of core protocol 2016-06-23 18:39:05 +08:00
Makefile.minimal Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
Makefile.pandora Pandora: Fixed referring to no more existing atomic source file in Makefile. 2016-07-19 21:01:13 +02:00
Makefile.psp PSP: Added missing object for generic TLS to Makefile. 2016-02-13 17:34:14 +01:00
Makefile.wiz Pandora: Updated SDL version in Makefile. 2016-07-19 21:01:30 +02:00
README-SDL.txt Another commit to test revision control. 2016-03-08 20:26:26 -05:00
README.txt Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
SDL2.spec.in Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
TODO.txt Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
VisualC.html Fixed two typos in documentation. 2016-01-12 22:23:53 +01:00
WhatsNew.txt Updated some header comments and iOS documentation to better clarify high-dpi / retina support and screen-coordinate sizes versus pixel sizes. 2015-12-31 21:16:43 -04:00
autogen.sh Fix running autogen.sh out-of-tree 2016-10-01 10:39:03 -07:00
cmake_uninstall.cmake.in Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
configure Updated version to 2.0.5 in preparation for release 2016-09-28 22:24:01 -07:00
configure.in Updated version to 2.0.5 in preparation for release 2016-09-28 22:24:01 -07:00
sdl2-config.cmake.in Fixed typo in sdl2-config.cmake.in (thanks, Rafal!). 2015-12-28 23:29:11 -05:00
sdl2-config.in Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
sdl2.m4 Fixed bug 3429 - Update AM_PATH_SDL2() to also check for SDL2.framework 2016-09-29 16:37:08 -07:00
sdl2.pc.in Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00

README.txt

                         Simple DirectMedia Layer

                                  (SDL)

                                Version 2.0

---
http://www.libsdl.org/

Simple DirectMedia Layer is a cross-platform development library designed
to provide low level access to audio, keyboard, mouse, joystick, and graphics
hardware via OpenGL and Direct3D. It is used by video playback software,
emulators, and popular games including Valve's award winning catalog
and many Humble Bundle games.

More extensive documentation is available in the docs directory, starting
with README.md

Enjoy!
	Sam Lantinga				(slouken@libsdl.org)