Commit Graph

19 Commits

Author SHA1 Message Date
Sylvain Becker ae8a270f61 Add SDL_SoftStretchLowerLinear() (Bug 5313) 2020-12-23 21:37:40 +01:00
Sylvain Becker ffb307e4dc Fixed bug 5304 - add SDL_HasSurfaceRLE() (Thanks Rene Dudfield and Dan Lawrence) 2020-10-18 09:52:56 +02:00
Sylvain Becker ebc12a2fd2 SDL_Surface refcount: destination surface keep track of surfaces
that are mapped to it and automatically invalidate them when it is freed

- refcount is kept so that an external application can still create a reference
to SDL_Surface.

- lock_data was un-used and is now renamed and used as a list keep track of the blitmap
2020-09-07 18:50:30 +02:00
Sam Lantinga a8780c6a28 Updated copyright date for 2020 2020-01-16 20:49:25 -08:00
Sylvain Becker 9a98dcc516 Rename surface aligned memory flag to SDL_SIMD_ALIGNED 2019-02-04 08:34:24 +01:00
Sylvain Becker e5d194e902 Add SDL_MEMALIGNED flag for SDL_Surface using aligned memory.
If an SDL_Surface has an aligned memory pointers, it should be freed
using SDL_SIMDFree() (will be used by SDL_ttf).
2019-01-31 11:45:31 +01:00
Sam Lantinga 5e13087b0f Updated copyright for 2019 2019-01-04 22:01:14 -08:00
Sam Lantinga ef34704875 Fixed bug 4264 - SDL_CreateTextureFromSurface generates error message but returns ok
Anthony @ POW Games

SDL_CreateTextureFromSurface makes an internal call to SDL_GetColorKey which can return an error and spams the error log with "Surface doesn't have a colorkey" even though the original function didn't return an error.
2018-09-24 16:41:55 -07:00
Sam Lantinga e3cc5b2c6b Updated copyright for 2018 2018-01-03 10:03:25 -08:00
Sam Lantinga a6a4e27ae8 Updated SDL's YUV support, many thanks to Adrien Descamps
New functions get and set the YUV colorspace conversion mode:
	SDL_SetYUVConversionMode()
	SDL_GetYUVConversionMode()
	SDL_GetYUVConversionModeForResolution()

SDL_ConvertPixels() converts between all supported RGB and YUV formats, with SSE acceleration for converting from planar YUV formats (YV12, NV12, etc) to common RGB/RGBA formats.

Added a new test program, testyuv, to verify correctness and speed of YUV conversion functionality.
2017-11-12 22:51:12 -08:00
Sam Lantinga f142a7961e Fixed bug 2441 - SDL_DuplicateSurface
Rainer Deyke

I've written a small patch that adds a small SDL_DuplicateSurface function to SDL.  I've written the function as part of a larger (as yet unfinished) patch, but I think this function is useful enough that it merits inclusion in SDL on its own.
2017-08-14 13:37:14 -07:00
Sam Lantinga de91b1248f Fixed bug 3745 - specify SDLCALL as the calling convention for API callbacks
Patches contributed by Ozkan Sezer
2017-08-14 06:28:21 -07:00
Ryan C. Gordon 64c2957735 Added a FIXME for 2.1 about an API change. 2017-08-09 00:55:27 -04:00
Sam Lantinga 45b774e3f7 Updated copyright for 2017 2017-01-01 18:33:28 -08:00
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
Sam Lantinga d2676c2985 Fixed bug 2924 - SDL_CreateRGBSurface[From] versions that take SDL_PIXELFORMAT enum
Daniel Gibson

Currently, SDL_CreateRGBSurface() and SDL_CreateRGBSurfaceFrom() take Uint32 masks for RGBA to "describe" the Pixelformat of the surface.
Internally those value are only used to map to one of the SDL_PIXELFORMAT_* enum values that are used for further processing.

I think it would be both handy and more efficient to be able to specify SDL_PIXELFORMAT_* yourself without using SDL_PixelFormatEnumToMasks() to create masks first, so I implemented functions that do that:
SDL_CreateRGBSurfaceWithFormat() and SDL_CreateRGBSurfaceWithFormatFrom() which are like the versions without "WithFormat" but instead of taking 4 Uint32s for R/G/B/A masks, they take one for a SDL_PIXELFORMAT_* enum value.

Together with https://bugzilla.libsdl.org/show_bug.cgi?id=2923 creating a SDL_Surface* from RGBA data (e.g. from stb_image)  is as easy as
  surf = SDL_SDL_CreateRGBSurfaceWithFormat(0, w, h, bppToUse*8, SDL_PIXELFORMAT_RGBA32);
2016-10-07 17:04:58 -07:00
Sam Lantinga 9fff05f8d6 Fixed bug 3352 - Adding alpha mask support to SDL_SaveBMP_RW
Simon Hug

The current SDL_SaveBMP_RW function that saves surfaces to a BMP uses an old bitmap header which doesn't officially support alpha channels. Applications just ignore the byte where the alpha is stored. This can easily be extended by using a newer header version and setting the alpha mask.

The attached patch has these changes:

- Extending the description of the function in the SDL_surface.h header with the supported formats.
- Refining when surfaces get stored to a 32-bit BMP. (Must have bit depth of 8 or higher and must have an alpha mask or colorkey.)
- Fixing a small bug that saves 24-bit BGR surfaces with a colorkey in a 24-bit BMP.
- Adding code that switches to the bitmap header version 4 if the surface has an alpha mask or colorkey. (I chose version 4 because Microsoft didn't lose its documentation behind a file cabinet like they did with version 3.)
- Adding a hint that can disable the use of the version 4 header. This is for people that need the legacy header or like the old behavior better. (I'm not sure about the hint name, though. May need changing if there are any rules to that.)
2016-10-01 11:29:13 -07:00
Sam Lantinga 42065e785d Updated copyright to 2016 2016-01-02 10:10:34 -08:00
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