SDL_cocoaopengles.m
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../../SDL_internal.h"
#if SDL_VIDEO_DRIVER_COCOA && SDL_VIDEO_OPENGL_EGL
#include "SDL_cocoavideo.h"
#include "SDL_cocoaopengles.h"
#include "SDL_cocoaopengl.h"
#include "SDL_log.h"
/* EGL implementation of SDL OpenGL support */
int
Cocoa_GLES_LoadLibrary(_THIS, const char *path) {
/* If the profile requested is not GL ES, switch over to WIN_GL functions */
if (_this->gl_config.profile_mask != SDL_GL_CONTEXT_PROFILE_ES) {
#if SDL_VIDEO_OPENGL_CGL
Cocoa_GLES_UnloadLibrary(_this);
_this->GL_LoadLibrary = Cocoa_GL_LoadLibrary;
_this->GL_GetProcAddress = Cocoa_GL_GetProcAddress;
_this->GL_UnloadLibrary = Cocoa_GL_UnloadLibrary;
_this->GL_CreateContext = Cocoa_GL_CreateContext;
_this->GL_MakeCurrent = Cocoa_GL_MakeCurrent;
_this->GL_SetSwapInterval = Cocoa_GL_SetSwapInterval;
_this->GL_GetSwapInterval = Cocoa_GL_GetSwapInterval;
_this->GL_SwapWindow = Cocoa_GL_SwapWindow;
_this->GL_DeleteContext = Cocoa_GL_DeleteContext;
return Cocoa_GL_LoadLibrary(_this, path);
#else
return SDL_SetError("SDL not configured with OpenGL/CGL support");
#endif
}
if (_this->egl_data == NULL) {
return SDL_EGL_LoadLibrary(_this, NULL, EGL_DEFAULT_DISPLAY, 0);
}
return 0;
}
SDL_GLContext
Cocoa_GLES_CreateContext(_THIS, SDL_Window * window)
{
SDL_GLContext context;
SDL_WindowData *data = (SDL_WindowData *)window->driverdata;
#if SDL_VIDEO_OPENGL_CGL
if (_this->gl_config.profile_mask != SDL_GL_CONTEXT_PROFILE_ES) {
/* Switch to CGL based functions */
Cocoa_GLES_UnloadLibrary(_this);
_this->GL_LoadLibrary = Cocoa_GL_LoadLibrary;
_this->GL_GetProcAddress = Cocoa_GL_GetProcAddress;
_this->GL_UnloadLibrary = Cocoa_GL_UnloadLibrary;
_this->GL_CreateContext = Cocoa_GL_CreateContext;
_this->GL_MakeCurrent = Cocoa_GL_MakeCurrent;
_this->GL_SetSwapInterval = Cocoa_GL_SetSwapInterval;
_this->GL_GetSwapInterval = Cocoa_GL_GetSwapInterval;
_this->GL_SwapWindow = Cocoa_GL_SwapWindow;
_this->GL_DeleteContext = Cocoa_GL_DeleteContext;
if (Cocoa_GL_LoadLibrary(_this, NULL) != 0) {
return NULL;
}
return Cocoa_GL_CreateContext(_this, window);
}
#endif
context = SDL_EGL_CreateContext(_this, data->egl_surface);
return context;
}
void
Cocoa_GLES_DeleteContext(_THIS, SDL_GLContext context)
{
SDL_EGL_DeleteContext(_this, context);
Cocoa_GLES_UnloadLibrary(_this);
}
SDL_EGL_SwapWindow_impl(Cocoa)
SDL_EGL_MakeCurrent_impl(Cocoa)
int
Cocoa_GLES_SetupWindow(_THIS, SDL_Window * window)
{
/* The current context is lost in here; save it and reset it. */
SDL_WindowData *windowdata = (SDL_WindowData *) window->driverdata;
SDL_Window *current_win = SDL_GL_GetCurrentWindow();
SDL_GLContext current_ctx = SDL_GL_GetCurrentContext();
if (_this->egl_data == NULL) {
if (SDL_EGL_LoadLibrary(_this, NULL, EGL_DEFAULT_DISPLAY, 0) < 0) {
SDL_EGL_UnloadLibrary(_this);
return -1;
}
}
/* Create the GLES window surface */
NSView* v = windowdata->nswindow.contentView;
windowdata->egl_surface = SDL_EGL_CreateSurface(_this, (NativeWindowType)[v layer]);
if (windowdata->egl_surface == EGL_NO_SURFACE) {
return SDL_SetError("Could not create GLES window surface");
}
return Cocoa_GLES_MakeCurrent(_this, current_win, current_ctx);
}
#endif /* SDL_VIDEO_DRIVER_COCOA && SDL_VIDEO_OPENGL_EGL */
/* vi: set ts=4 sw=4 expandtab: */
v
const GLdouble * v
Definition: SDL_opengl.h:2064
SDL_log.h
EGL_NO_SURFACE
#define EGL_NO_SURFACE
Definition: egl.h:100
SDL_VideoDevice::GL_SetSwapInterval
int(* GL_SetSwapInterval)(_THIS, int interval)
Definition: SDL_sysvideo.h:260
context
static screen_context_t context
Definition: video.c:25
SDL_VideoDevice::profile_mask
int profile_mask
Definition: SDL_sysvideo.h:342
data
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
layer
GLenum GLuint GLint GLint layer
Definition: SDL_opengl_glext.h:1186
SDL_VideoDevice::GL_LoadLibrary
int(* GL_LoadLibrary)(_THIS, const char *path)
Definition: SDL_sysvideo.h:254
EGL_DEFAULT_DISPLAY
#define EGL_DEFAULT_DISPLAY
Definition: egl.h:227
SDL_WindowData
Definition: SDL_androidwindow.h:35
SDL_cocoavideo.h
_this
static SDL_VideoDevice * _this
Definition: SDL_video.c:121
NativeWindowType
EGLNativeWindowType NativeWindowType
Definition: eglplatform.h:112
SDL_GLContext
void * SDL_GLContext
An opaque handle to an OpenGL context.
Definition: SDL_video.h:175
SDL_VideoDevice::GL_CreateContext
SDL_GLContext(* GL_CreateContext)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:257
_THIS
#define _THIS
Definition: SDL_alsa_audio.h:31
SDL_VideoDevice::GL_MakeCurrent
int(* GL_MakeCurrent)(_THIS, SDL_Window *window, SDL_GLContext context)
Definition: SDL_sysvideo.h:258
SDL_cocoaopengl.h
SDL_WindowData::nswindow
NSWindow * nswindow
Definition: SDL_cocoawindow.h:115
SDL_VIDEO_OPENGL_CGL
#define SDL_VIDEO_OPENGL_CGL
Definition: SDL_config_macosx.h:208
SDL_VideoDevice::GL_UnloadLibrary
void(* GL_UnloadLibrary)(_THIS)
Definition: SDL_sysvideo.h:256
NULL
#define NULL
Definition: begin_code.h:164
SDL_GL_GetCurrentContext
#define SDL_GL_GetCurrentContext
Definition: SDL_dynapi_overrides.h:562
SDL_SetError
#define SDL_SetError
Definition: SDL_dynapi_overrides.h:30
SDL_GL_GetCurrentWindow
#define SDL_GL_GetCurrentWindow
Definition: SDL_dynapi_overrides.h:561
window
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
SDL_VideoDevice::GL_SwapWindow
int(* GL_SwapWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:262
SDL_Window
The type used to identify a window.
Definition: SDL_sysvideo.h:73
SDL_cocoaopengles.h
path
GLsizei const GLchar *const * path
Definition: SDL_opengl_glext.h:3730
SDL_VideoDevice::gl_config
struct SDL_VideoDevice::@34 gl_config
SDL_Window::driverdata
void * driverdata
Definition: SDL_sysvideo.h:111
SDL_VideoDevice::GL_DeleteContext
void(* GL_DeleteContext)(_THIS, SDL_GLContext context)
Definition: SDL_sysvideo.h:263
SDL_VideoDevice::GL_GetSwapInterval
int(* GL_GetSwapInterval)(_THIS)
Definition: SDL_sysvideo.h:261
SDL_GL_CONTEXT_PROFILE_ES
Definition: SDL_video.h:215
SDL_VideoDevice::GL_GetProcAddress
void *(* GL_GetProcAddress)(_THIS, const char *proc)
Definition: SDL_sysvideo.h:255
SDL_WindowData::egl_surface
EGLSurface egl_surface
Definition: SDL_androidwindow.h:37