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Added EGL swap chain.

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This commit is contained in:
Branimir Karadžić
2014-09-24 19:22:15 -07:00
parent 25d56825e8
commit 7362288131
3 changed files with 117 additions and 47 deletions
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133
src/glcontext_egl.cpp
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@@ -35,6 +35,7 @@ namespace bgfx
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 EGLint (EGLAPIENTRY* PFNEGLGETERRORPROC)(void);
typedef EGLDisplay (EGLAPIENTRY* PFNEGLGETDISPLAYPROC)(EGLNativeDisplayType display_id);
typedef EGLBoolean (EGLAPIENTRY* PFNEGLTERMINATEPROC)(EGLDisplay dpy);
typedef EGLBoolean (EGLAPIENTRY* PFNEGLDESTROYSURFACEPROC)(EGLDisplay dpy, EGLSurface surface);
@@ -49,6 +50,7 @@ namespace bgfx
EGL_IMPORT_FUNC(PFNEGLCREATEWINDOWSURFACEPROC, eglCreateWindowSurface); \
EGL_IMPORT_FUNC(PFNEGLCHOOSECONFIGPROC, eglChooseConfig); \
EGL_IMPORT_FUNC(PFNEGLINITIALIZEPROC, eglInitialize); \
EGL_IMPORT_FUNC(PFNEGLGETERRORPROC, eglGetError); \
EGL_IMPORT_FUNC(PFNEGLGETDISPLAYPROC, eglGetDisplay); \
EGL_IMPORT_FUNC(PFNEGLTERMINATEPROC, eglTerminate); \
EGL_IMPORT_FUNC(PFNEGLDESTROYSURFACEPROC, eglDestroySurface); \
@@ -98,6 +100,66 @@ EGL_IMPORT
# define GL_IMPORT(_optional, _proto, _func, _import) _proto _func = NULL
# include "glimports.h"
static const EGLint s_contextAttrs[] =
{
# if BGFX_CONFIG_RENDERER_OPENGLES >= 30
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
# if BGFX_CONFIG_RENDERER_OPENGLES >= 31
EGL_CONTEXT_MINOR_VERSION_KHR, 1,
# else
// EGL_CONTEXT_MINOR_VERSION_KHR, 0,
# endif // BGFX_CONFIG_RENDERER_OPENGLES >= 31
# elif BGFX_CONFIG_RENDERER_OPENGLES
EGL_CONTEXT_MAJOR_VERSION_KHR, 2,
// EGL_CONTEXT_MINOR_VERSION_KHR, 0,
# endif // BGFX_CONFIG_RENDERER_
EGL_NONE
};
struct SwapChainGL
{
SwapChainGL(EGLDisplay _display, EGLConfig _config, EGLContext _context, EGLNativeWindowType _nwh)
: m_nwh(_nwh)
, m_display(_display)
{
m_surface = eglCreateWindowSurface(m_display, _config, _nwh, NULL);
BGFX_FATAL(m_surface != EGL_NO_SURFACE, Fatal::UnableToInitialize, "Failed to create surface.");
m_context = eglCreateContext(m_display, _config, _context, s_contextAttrs);
BX_CHECK(NULL != m_context, "Create swap chain failed: %x", eglGetError() );
makeCurrent();
GL_CHECK(glClearColor(0.0f, 0.0f, 0.0f, 0.0f) );
GL_CHECK(glClear(GL_COLOR_BUFFER_BIT) );
swapBuffers();
GL_CHECK(glClear(GL_COLOR_BUFFER_BIT) );
swapBuffers();
}
~SwapChainGL()
{
eglMakeCurrent(EGL_NO_DISPLAY, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglDestroyContext(m_display, m_context);
eglDestroySurface(m_display, m_surface);
}
void makeCurrent()
{
eglMakeCurrent(m_display, m_surface, m_surface, m_context);
}
void swapBuffers()
{
eglSwapBuffers(m_display, m_surface);
}
EGLNativeWindowType m_nwh;
EGLContext m_context;
EGLDisplay m_display;
EGLSurface m_surface;
};
# if BX_PLATFORM_RPI
static EGL_DISPMANX_WINDOW_T s_dispmanWindow;
@@ -118,10 +180,10 @@ EGL_IMPORT
BX_UNUSED(_width, _height);
EGLNativeDisplayType ndt = EGL_DEFAULT_DISPLAY;
EGLNativeWindowType nwt = (EGLNativeWindowType)NULL;
EGLNativeWindowType nwh = (EGLNativeWindowType)NULL;
# if BX_PLATFORM_WINDOWS
ndt = GetDC(g_bgfxHwnd);
nwt = g_bgfxHwnd;
nwh = g_bgfxHwnd;
# endif // BX_PLATFORM_
m_display = eglGetDisplay(ndt);
BGFX_FATAL(m_display != EGL_NO_DISPLAY, Fatal::UnableToInitialize, "Failed to create display %p", m_display);
@@ -146,15 +208,14 @@ EGL_IMPORT
};
EGLint numConfig = 0;
EGLConfig config;
success = eglChooseConfig(m_display, attrs, &config, 1, &numConfig);
success = eglChooseConfig(m_display, attrs, &m_config, 1, &numConfig);
BGFX_FATAL(success, Fatal::UnableToInitialize, "eglChooseConfig");
# if BX_PLATFORM_ANDROID
EGLint format;
eglGetConfigAttrib(m_display, config, EGL_NATIVE_VISUAL_ID, &format);
eglGetConfigAttrib(m_display, m_config, EGL_NATIVE_VISUAL_ID, &format);
ANativeWindow_setBuffersGeometry(g_bgfxAndroidWindow, _width, _height, format);
nwt = g_bgfxAndroidWindow;
nwh = g_bgfxAndroidWindow;
# elif BX_PLATFORM_RPI
DISPMANX_DISPLAY_HANDLE_T dispmanDisplay = vc_dispmanx_display_open(0);
DISPMANX_UPDATE_HANDLE_T dispmanUpdate = vc_dispmanx_update_start(0);
@@ -177,32 +238,15 @@ EGL_IMPORT
s_dispmanWindow.element = dispmanElement;
s_dispmanWindow.width = _width;
s_dispmanWindow.height = _height;
nwt = &s_dispmanWindow;
nwh = &s_dispmanWindow;
vc_dispmanx_update_submit_sync(dispmanUpdate);
# endif // BX_PLATFORM_ANDROID
m_surface = eglCreateWindowSurface(m_display, config, nwt, NULL);
m_surface = eglCreateWindowSurface(m_display, m_config, nwh, NULL);
BGFX_FATAL(m_surface != EGL_NO_SURFACE, Fatal::UnableToInitialize, "Failed to create surface.");
EGLint contextAttrs[] =
{
# if BGFX_CONFIG_RENDERER_OPENGLES >= 30
EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
# if BGFX_CONFIG_RENDERER_OPENGLES >= 31
EGL_CONTEXT_MINOR_VERSION_KHR, 1,
# else
// EGL_CONTEXT_MINOR_VERSION_KHR, 0,
# endif // BGFX_CONFIG_RENDERER_OPENGLES >= 31
# elif BGFX_CONFIG_RENDERER_OPENGLES
EGL_CONTEXT_MAJOR_VERSION_KHR, 2,
// EGL_CONTEXT_MINOR_VERSION_KHR, 0,
# endif // BGFX_CONFIG_RENDERER_
EGL_NONE
};
m_context = eglCreateContext(m_display, config, EGL_NO_CONTEXT, contextAttrs);
m_context = eglCreateContext(m_display, m_config, EGL_NO_CONTEXT, s_contextAttrs);
BGFX_FATAL(m_context != EGL_NO_CONTEXT, Fatal::UnableToInitialize, "Failed to create context.");
success = eglMakeCurrent(m_display, m_surface, m_surface, m_context);
@@ -239,29 +283,46 @@ EGL_IMPORT
bool GlContext::isSwapChainSupported()
{
return false;
return BX_ENABLED(0
| BX_PLATFORM_LINUX
| BX_PLATFORM_WINDOWS
);
}
SwapChainGL* GlContext::createSwapChain(void* /*_nwh*/)
SwapChainGL* GlContext::createSwapChain(void* _nwh)
{
BX_CHECK(false, "Shouldn't be called!");
return NULL;
return BX_NEW(g_allocator, SwapChainGL)(m_display, m_config, m_context, (EGLNativeWindowType)_nwh);
}
void GlContext::destorySwapChain(SwapChainGL* /*_swapChain*/)
void GlContext::destorySwapChain(SwapChainGL* _swapChain)
{
BX_CHECK(false, "Shouldn't be called!");
BX_DELETE(g_allocator, _swapChain);
}
void GlContext::swap(SwapChainGL* _swapChain)
{
BX_CHECK(NULL == _swapChain, "Shouldn't be called!"); BX_UNUSED(_swapChain);
eglMakeCurrent(m_display, m_surface, m_surface, m_context);
eglSwapBuffers(m_display, m_surface);
if (NULL == _swapChain)
{
eglMakeCurrent(m_display, m_surface, m_surface, m_context);
eglSwapBuffers(m_display, m_surface);
}
else
{
_swapChain->makeCurrent();
_swapChain->swapBuffers();
}
}
void GlContext::makeCurrent(SwapChainGL* /*_swapChain*/)
void GlContext::makeCurrent(SwapChainGL* _swapChain)
{
if (NULL == _swapChain)
{
eglMakeCurrent(m_display, m_surface, m_surface, m_context);
}
else
{
_swapChain->makeCurrent();
}
}
void GlContext::import()