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Fixed bug 3724 - Allow Angle Static Link

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Carlos

We would like to add a switch (define) that allows us to compile Angle statically with SDL. That is, getting rid of the OpenGL DLL. Usually you need OpenGL to be loaded dynamically as DLL because implementation is provided by the system but no need with Angle.

Only 2 files need modification and it shouldn't affect current behaivor:
include/SDL_egl.h and src/video/SDL_egl.c, as in here

https://github.com/native-toolkit/sdl/pull/10/files

The flag name could be SDL_VIDEO_STATIC_ANGLE (instead of NATIVE_TOOLKIT_STATIC_ANGLE) as discussed here https://github.com/native-toolkit/sdl/pull/10

We have tested this with both Windows and UWP, using NME engine (https://github.com/haxenme/nme).

Releated issue: https://bugzilla.libsdl.org/show_bug.cgi?id=1820
This commit is contained in:
Sam Lantinga 2017-08-27 19:05:57 -07:00
parent aad997fc9f
commit 003d491f86
2 changed files with 8 additions and 1 deletions
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2
include/SDL_egl.h
View File

@ -132,7 +132,7 @@
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
* This precedes the return type of the function in the function prototype. * This precedes the return type of the function in the function prototype.
*/ */
#if defined(_WIN32) && !defined(__SCITECH_SNAP__) #if defined(_WIN32) && !defined(__SCITECH_SNAP__) && !defined(SDL_VIDEO_STATIC_ANGLE)
# define KHRONOS_APICALL __declspec(dllimport) # define KHRONOS_APICALL __declspec(dllimport)
#elif defined (__SYMBIAN32__) #elif defined (__SYMBIAN32__)
# define KHRONOS_APICALL IMPORT_C # define KHRONOS_APICALL IMPORT_C

7
src/video/SDL_egl.c
View File

@ -72,12 +72,17 @@
#define DEFAULT_OGL_ES "libGLESv1_CM.so.1" #define DEFAULT_OGL_ES "libGLESv1_CM.so.1"
#endif /* SDL_VIDEO_DRIVER_RPI */ #endif /* SDL_VIDEO_DRIVER_RPI */
#ifdef SDL_VIDEO_STATIC_ANGLE
#define LOAD_FUNC(NAME) \
_this->egl_data->NAME = (void *)NAME;
#else
#define LOAD_FUNC(NAME) \ #define LOAD_FUNC(NAME) \
_this->egl_data->NAME = SDL_LoadFunction(_this->egl_data->dll_handle, #NAME); \ _this->egl_data->NAME = SDL_LoadFunction(_this->egl_data->dll_handle, #NAME); \
if (!_this->egl_data->NAME) \ if (!_this->egl_data->NAME) \
{ \ { \
return SDL_SetError("Could not retrieve EGL function " #NAME); \ return SDL_SetError("Could not retrieve EGL function " #NAME); \
} }
#endif
static const char * SDL_EGL_GetErrorName(EGLint eglErrorCode) static const char * SDL_EGL_GetErrorName(EGLint eglErrorCode)
{ {
@ -275,6 +280,7 @@ SDL_EGL_LoadLibrary(_THIS, const char *egl_path, NativeDisplayType native_displa
} }
#endif #endif
#ifndef SDL_VIDEO_STATIC_ANGLE
/* A funny thing, loading EGL.so first does not work on the Raspberry, so we load libGL* first */ /* A funny thing, loading EGL.so first does not work on the Raspberry, so we load libGL* first */
path = SDL_getenv("SDL_VIDEO_GL_DRIVER"); path = SDL_getenv("SDL_VIDEO_GL_DRIVER");
if (path != NULL) { if (path != NULL) {
@ -330,6 +336,7 @@ SDL_EGL_LoadLibrary(_THIS, const char *egl_path, NativeDisplayType native_displa
} }
SDL_ClearError(); SDL_ClearError();
} }
#endif
_this->egl_data->dll_handle = dll_handle; _this->egl_data->dll_handle = dll_handle;