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Added dynamic loading of EGL library on Windows.

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This commit is contained in:
Branimir Karadžić 2014-02-16 16:40:08 -08:00
parent 101a2162ff
commit 91043b0195
2 changed files with 74 additions and 0 deletions
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73
src/glcontext_egl.cpp
View file

@ -12,12 +12,83 @@
namespace bgfx
{
#if BX_PLATFORM_WINDOWS
typedef void (*EGLPROC)(void);
typedef EGLPROC (EGLAPIENTRY* PFNEGLGETPROCADDRESSPROC)(const char *procname);
typedef EGLBoolean (EGLAPIENTRY* PFNEGLSWAPINTERVALPROC)(EGLDisplay dpy, EGLint interval);
typedef EGLBoolean (EGLAPIENTRY* PFNEGLMAKECURRENTPROC)(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx);
typedef EGLContext (EGLAPIENTRY* PFNEGLCREATECONTEXTPROC)(EGLDisplay dpy, EGLConfig config, EGLContext share_context, const EGLint *attrib_list);
typedef EGLSurface (EGLAPIENTRY* PFNEGLCREATEWINDOWSURFACEPROC)(EGLDisplay dpy, EGLConfig config, EGLNativeWindowType win, const EGLint *attrib_list);
typedef EGLBoolean (EGLAPIENTRY* PFNEGLCHOOSECONFIGPROC)(EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config);
typedef EGLBoolean (EGLAPIENTRY* PFNEGLINITIALIZEPROC)(EGLDisplay dpy, EGLint *major, EGLint *minor);
typedef EGLDisplay (EGLAPIENTRY* PFNEGLGETDISPLAYPROC)(EGLNativeDisplayType display_id);
typedef EGLBoolean (EGLAPIENTRY* PFNEGLTERMINATEPROC)(EGLDisplay dpy);
typedef EGLBoolean (EGLAPIENTRY* PFNEGLDESTROYSURFACEPROC)(EGLDisplay dpy, EGLSurface surface);
typedef EGLBoolean (EGLAPIENTRY* PFNEGLDESTROYCONTEXTPROC)(EGLDisplay dpy, EGLContext ctx);
typedef EGLBoolean (EGLAPIENTRY* PFNEGLSWAPBUFFERSPROC)(EGLDisplay dpy, EGLSurface surface);
#define EGL_IMPORT \
EGL_IMPORT_FUNC(PFNEGLGETPROCADDRESSPROC, eglGetProcAddress); \
EGL_IMPORT_FUNC(PFNEGLSWAPINTERVALPROC, eglSwapInterval); \
EGL_IMPORT_FUNC(PFNEGLMAKECURRENTPROC, eglMakeCurrent); \
EGL_IMPORT_FUNC(PFNEGLCREATECONTEXTPROC, eglCreateContext); \
EGL_IMPORT_FUNC(PFNEGLCREATEWINDOWSURFACEPROC, eglCreateWindowSurface); \
EGL_IMPORT_FUNC(PFNEGLCHOOSECONFIGPROC, eglChooseConfig); \
EGL_IMPORT_FUNC(PFNEGLINITIALIZEPROC, eglInitialize); \
EGL_IMPORT_FUNC(PFNEGLGETDISPLAYPROC, eglGetDisplay); \
EGL_IMPORT_FUNC(PFNEGLTERMINATEPROC, eglTerminate); \
EGL_IMPORT_FUNC(PFNEGLDESTROYSURFACEPROC, eglDestroySurface); \
EGL_IMPORT_FUNC(PFNEGLDESTROYCONTEXTPROC, eglDestroyContext); \
EGL_IMPORT_FUNC(PFNEGLSWAPBUFFERSPROC, eglSwapBuffers);
#define EGL_IMPORT_FUNC(_proto, _func) _proto _func
EGL_IMPORT
#undef EGL_IMPORT_FUNC
void* eglOpen()
{
void* handle = bx::dlopen("libEGL.dll");
BGFX_FATAL(NULL != handle, Fatal::UnableToInitialize, "Failed to load libEGL dynamic library.");
#define EGL_IMPORT_FUNC(_proto, _func) \
_func = (_proto)bx::dlsym(handle, #_func); \
BGFX_FATAL(NULL != _func, Fatal::UnableToInitialize, "Failed get " #_func ".")
EGL_IMPORT
#undef EGL_IMPORT_FUNC
return handle;
}
void eglClose(void* _handle)
{
bx::dlclose(_handle);
#define EGL_IMPORT_FUNC(_proto, _func) _func = NULL
EGL_IMPORT
#undef EGL_IMPORT_FUNC
}
#else
void* eglOpen()
{
return NULL;
}
void eglClose(void* /*_handle*/)
{
}
#endif // BX_PLATFORM_WINDOWS
# define GL_IMPORT(_optional, _proto, _func, _import) _proto _func
# include "glimports.h"
# undef GL_IMPORT
void GlContext::create(uint32_t _width, uint32_t _height)
{
m_eglLibrary = eglOpen();
BX_UNUSED(_width, _height);
EGLNativeDisplayType ndt = EGL_DEFAULT_DISPLAY;
EGLNativeWindowType nwt = (EGLNativeWindowType)NULL;
@ -95,6 +166,8 @@ namespace bgfx
eglDestroySurface(m_display, m_surface);
eglTerminate(m_display);
m_context = NULL;
eglClose(m_eglLibrary);
}
void GlContext::resize(uint32_t /*_width*/, uint32_t /*_height*/, bool _vsync)

1
src/glcontext_egl.h
View file

@ -32,6 +32,7 @@ namespace bgfx
return NULL != m_context;
}
void* m_eglLibrary;
EGLContext m_context;
EGLDisplay m_display;
EGLSurface m_surface;