461 lines
14 KiB
C++
461 lines
14 KiB
C++
/*
|
|
* Copyright 2011-2016 Branimir Karadzic. All rights reserved.
|
|
* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
|
|
*/
|
|
|
|
#include "bgfx_p.h"
|
|
|
|
#if (BGFX_CONFIG_RENDERER_OPENGLES || BGFX_CONFIG_RENDERER_OPENGL)
|
|
# include "renderer_gl.h"
|
|
|
|
# if BGFX_USE_EGL
|
|
|
|
# if BX_PLATFORM_RPI
|
|
# include <X11/Xlib.h>
|
|
# include <bcm_host.h>
|
|
# endif // BX_PLATFORM_RPI
|
|
|
|
namespace bgfx { namespace gl
|
|
{
|
|
#ifndef EGL_CONTEXT_FLAG_NO_ERROR_BIT_KHR
|
|
# define EGL_CONTEXT_FLAG_NO_ERROR_BIT_KHR 0x00000008
|
|
#endif // EGL_CONTEXT_FLAG_NO_ERROR_BIT_KHR
|
|
|
|
#if BGFX_USE_GL_DYNAMIC_LIB
|
|
|
|
typedef void (*EGLPROC)(void);
|
|
|
|
typedef EGLBoolean (EGLAPIENTRY* PFNEGLCHOOSECONFIGPROC)(EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config);
|
|
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 EGLint (EGLAPIENTRY* PFNEGLGETERRORPROC)(void);
|
|
typedef EGLDisplay (EGLAPIENTRY* PFNEGLGETDISPLAYPROC)(EGLNativeDisplayType display_id);
|
|
typedef EGLPROC (EGLAPIENTRY* PFNEGLGETPROCADDRESSPROC)(const char *procname);
|
|
typedef EGLBoolean (EGLAPIENTRY* PFNEGLINITIALIZEPROC)(EGLDisplay dpy, EGLint *major, EGLint *minor);
|
|
typedef EGLBoolean (EGLAPIENTRY* PFNEGLMAKECURRENTPROC)(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx);
|
|
typedef EGLBoolean (EGLAPIENTRY* PFNEGLDESTROYCONTEXTPROC)(EGLDisplay dpy, EGLContext ctx);
|
|
typedef EGLBoolean (EGLAPIENTRY* PFNEGLDESTROYSURFACEPROC)(EGLDisplay dpy, EGLSurface surface);
|
|
typedef const char* (EGLAPIENTRY* PGNEGLQUERYSTRINGPROC)(EGLDisplay dpy, EGLint name);
|
|
typedef EGLBoolean (EGLAPIENTRY* PFNEGLSWAPBUFFERSPROC)(EGLDisplay dpy, EGLSurface surface);
|
|
typedef EGLBoolean (EGLAPIENTRY* PFNEGLSWAPINTERVALPROC)(EGLDisplay dpy, EGLint interval);
|
|
typedef EGLBoolean (EGLAPIENTRY* PFNEGLTERMINATEPROC)(EGLDisplay dpy);
|
|
|
|
#define EGL_IMPORT \
|
|
EGL_IMPORT_FUNC(PFNEGLCHOOSECONFIGPROC, eglChooseConfig); \
|
|
EGL_IMPORT_FUNC(PFNEGLCREATECONTEXTPROC, eglCreateContext); \
|
|
EGL_IMPORT_FUNC(PFNEGLCREATEWINDOWSURFACEPROC, eglCreateWindowSurface); \
|
|
EGL_IMPORT_FUNC(PFNEGLGETDISPLAYPROC, eglGetDisplay); \
|
|
EGL_IMPORT_FUNC(PFNEGLGETERRORPROC, eglGetError); \
|
|
EGL_IMPORT_FUNC(PFNEGLGETPROCADDRESSPROC, eglGetProcAddress); \
|
|
EGL_IMPORT_FUNC(PFNEGLDESTROYCONTEXTPROC, eglDestroyContext); \
|
|
EGL_IMPORT_FUNC(PFNEGLDESTROYSURFACEPROC, eglDestroySurface); \
|
|
EGL_IMPORT_FUNC(PFNEGLINITIALIZEPROC, eglInitialize); \
|
|
EGL_IMPORT_FUNC(PFNEGLMAKECURRENTPROC, eglMakeCurrent); \
|
|
EGL_IMPORT_FUNC(PGNEGLQUERYSTRINGPROC, eglQueryString); \
|
|
EGL_IMPORT_FUNC(PFNEGLSWAPBUFFERSPROC, eglSwapBuffers); \
|
|
EGL_IMPORT_FUNC(PFNEGLSWAPINTERVALPROC, eglSwapInterval); \
|
|
EGL_IMPORT_FUNC(PFNEGLTERMINATEPROC, eglTerminate);
|
|
|
|
#define EGL_IMPORT_FUNC(_proto, _func) _proto _func
|
|
EGL_IMPORT
|
|
#undef EGL_IMPORT_FUNC
|
|
|
|
void* eglOpen()
|
|
{
|
|
void* handle = bx::dlopen("libEGL." BX_DL_EXT);
|
|
BGFX_FATAL(NULL != handle, Fatal::UnableToInitialize, "Failed to load libEGL dynamic library.");
|
|
|
|
#define EGL_IMPORT_FUNC(_proto, _func) \
|
|
_func = (_proto)bx::dlsym(handle, #_func); \
|
|
BX_TRACE("%p " #_func, _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 // BGFX_USE_GL_DYNAMIC_LIB
|
|
|
|
# define GL_IMPORT(_optional, _proto, _func, _import) _proto _func = NULL
|
|
# include "glimports.h"
|
|
|
|
static EGLint s_contextAttrs[16];
|
|
|
|
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(m_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;
|
|
# endif // BX_PLATFORM_RPI
|
|
|
|
void GlContext::create(uint32_t _width, uint32_t _height)
|
|
{
|
|
# if BX_PLATFORM_RPI
|
|
bcm_host_init();
|
|
# endif // BX_PLATFORM_RPI
|
|
|
|
m_eglLibrary = eglOpen();
|
|
|
|
if (NULL == g_platformData.context)
|
|
{
|
|
# if BX_PLATFORM_RPI
|
|
g_platformData.ndt = EGL_DEFAULT_DISPLAY;
|
|
# endif // BX_PLATFORM_RPI
|
|
|
|
BX_UNUSED(_width, _height);
|
|
EGLNativeDisplayType ndt = (EGLNativeDisplayType)g_platformData.ndt;
|
|
EGLNativeWindowType nwh = (EGLNativeWindowType )g_platformData.nwh;
|
|
|
|
# if BX_PLATFORM_WINDOWS
|
|
if (NULL == g_platformData.ndt)
|
|
{
|
|
ndt = GetDC( (HWND)g_platformData.nwh);
|
|
}
|
|
# endif // BX_PLATFORM_WINDOWS
|
|
|
|
m_display = eglGetDisplay(ndt);
|
|
BGFX_FATAL(m_display != EGL_NO_DISPLAY, Fatal::UnableToInitialize, "Failed to create display %p", m_display);
|
|
|
|
EGLint major = 0;
|
|
EGLint minor = 0;
|
|
EGLBoolean success = eglInitialize(m_display, &major, &minor);
|
|
BGFX_FATAL(success && major >= 1 && minor >= 3, Fatal::UnableToInitialize, "Failed to initialize %d.%d", major, minor);
|
|
|
|
BX_TRACE("EGL info:");
|
|
const char* clientApis = eglQueryString(m_display, EGL_CLIENT_APIS);
|
|
BX_TRACE(" APIs: %s", clientApis); BX_UNUSED(clientApis);
|
|
|
|
const char* vendor = eglQueryString(m_display, EGL_VENDOR);
|
|
BX_TRACE(" Vendor: %s", vendor); BX_UNUSED(vendor);
|
|
|
|
const char* version = eglQueryString(m_display, EGL_VERSION);
|
|
BX_TRACE("Version: %s", version); BX_UNUSED(version);
|
|
|
|
const char* extensions = eglQueryString(m_display, EGL_EXTENSIONS);
|
|
BX_TRACE("Supported EGL extensions:");
|
|
dumpExtensions(extensions);
|
|
|
|
EGLint attrs[] =
|
|
{
|
|
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
|
|
|
|
# if BX_PLATFORM_ANDROID
|
|
EGL_DEPTH_SIZE, 16,
|
|
# else
|
|
EGL_DEPTH_SIZE, 24,
|
|
# endif // BX_PLATFORM_
|
|
EGL_STENCIL_SIZE, 8,
|
|
|
|
EGL_NONE
|
|
};
|
|
|
|
EGLint numConfig = 0;
|
|
success = eglChooseConfig(m_display, attrs, &m_config, 1, &numConfig);
|
|
BGFX_FATAL(success, Fatal::UnableToInitialize, "eglChooseConfig");
|
|
|
|
# if BX_PLATFORM_ANDROID
|
|
|
|
EGLint format;
|
|
eglGetConfigAttrib(m_display, m_config, EGL_NATIVE_VISUAL_ID, &format);
|
|
ANativeWindow_setBuffersGeometry( (ANativeWindow*)g_platformData.nwh, _width, _height, format);
|
|
|
|
# elif BX_PLATFORM_RPI
|
|
DISPMANX_DISPLAY_HANDLE_T dispmanDisplay = vc_dispmanx_display_open(0);
|
|
DISPMANX_UPDATE_HANDLE_T dispmanUpdate = vc_dispmanx_update_start(0);
|
|
|
|
VC_RECT_T dstRect = { 0, 0, int32_t(_width), int32_t(_height) };
|
|
VC_RECT_T srcRect = { 0, 0, int32_t(_width) << 16, int32_t(_height) << 16 };
|
|
|
|
DISPMANX_ELEMENT_HANDLE_T dispmanElement = vc_dispmanx_element_add(dispmanUpdate
|
|
, dispmanDisplay
|
|
, 0
|
|
, &dstRect
|
|
, 0
|
|
, &srcRect
|
|
, DISPMANX_PROTECTION_NONE
|
|
, NULL
|
|
, NULL
|
|
, DISPMANX_NO_ROTATE
|
|
);
|
|
|
|
s_dispmanWindow.element = dispmanElement;
|
|
s_dispmanWindow.width = _width;
|
|
s_dispmanWindow.height = _height;
|
|
nwh = &s_dispmanWindow;
|
|
|
|
vc_dispmanx_update_submit_sync(dispmanUpdate);
|
|
# endif // BX_PLATFORM_ANDROID
|
|
|
|
m_surface = eglCreateWindowSurface(m_display, m_config, nwh, NULL);
|
|
BGFX_FATAL(m_surface != EGL_NO_SURFACE, Fatal::UnableToInitialize, "Failed to create surface.");
|
|
|
|
const bool hasEglKhrCreateContext = !!bx::findIdentifierMatch(extensions, "EGL_KHR_create_context");
|
|
const bool hasEglKhrNoError = !!bx::findIdentifierMatch(extensions, "EGL_KHR_create_context_no_error");
|
|
|
|
const uint32_t gles = BGFX_CONFIG_RENDERER_OPENGLES;
|
|
|
|
for (uint32_t ii = 0; ii < 2; ++ii)
|
|
{
|
|
bx::StaticMemoryBlockWriter writer(s_contextAttrs, sizeof(s_contextAttrs) );
|
|
|
|
EGLint flags = 0;
|
|
|
|
# if BX_PLATFORM_RPI
|
|
BX_UNUSED(hasEglKhrCreateContext, hasEglKhrNoError);
|
|
#else
|
|
if (hasEglKhrCreateContext)
|
|
{
|
|
bx::write(&writer, EGLint(EGL_CONTEXT_MAJOR_VERSION_KHR) );
|
|
bx::write(&writer, EGLint(gles / 10) );
|
|
|
|
bx::write(&writer, EGLint(EGL_CONTEXT_MINOR_VERSION_KHR) );
|
|
bx::write(&writer, EGLint(gles % 10) );
|
|
|
|
flags |= BGFX_CONFIG_DEBUG && hasEglKhrNoError ? 0
|
|
| EGL_CONTEXT_FLAG_NO_ERROR_BIT_KHR
|
|
: 0
|
|
;
|
|
|
|
if (0 == ii)
|
|
{
|
|
flags |= BGFX_CONFIG_DEBUG ? 0
|
|
| EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR
|
|
// | EGL_OPENGL_ES3_BIT_KHR
|
|
: 0
|
|
;
|
|
|
|
bx::write(&writer, EGLint(EGL_CONTEXT_FLAGS_KHR) );
|
|
bx::write(&writer, flags);
|
|
}
|
|
}
|
|
else
|
|
# endif // BX_PLATFORM_RPI
|
|
{
|
|
bx::write(&writer, EGLint(EGL_CONTEXT_CLIENT_VERSION) );
|
|
bx::write(&writer, 2);
|
|
}
|
|
|
|
bx::write(&writer, EGLint(EGL_NONE) );
|
|
|
|
m_context = eglCreateContext(m_display, m_config, EGL_NO_CONTEXT, s_contextAttrs);
|
|
if (NULL != m_context)
|
|
{
|
|
break;
|
|
}
|
|
|
|
BX_TRACE("Failed to create EGL context with EGL_CONTEXT_FLAGS_KHR (%08x).", flags);
|
|
}
|
|
|
|
BGFX_FATAL(m_context != EGL_NO_CONTEXT, Fatal::UnableToInitialize, "Failed to create context.");
|
|
|
|
success = eglMakeCurrent(m_display, m_surface, m_surface, m_context);
|
|
BGFX_FATAL(success, Fatal::UnableToInitialize, "Failed to set context.");
|
|
m_current = NULL;
|
|
|
|
eglSwapInterval(m_display, 0);
|
|
}
|
|
|
|
import();
|
|
|
|
g_internalData.context = m_context;
|
|
}
|
|
|
|
void GlContext::destroy()
|
|
{
|
|
if (NULL != m_display)
|
|
{
|
|
eglMakeCurrent(m_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
|
|
eglDestroyContext(m_display, m_context);
|
|
eglDestroySurface(m_display, m_surface);
|
|
eglTerminate(m_display);
|
|
m_context = NULL;
|
|
}
|
|
|
|
eglClose(m_eglLibrary);
|
|
|
|
# if BX_PLATFORM_RPI
|
|
bcm_host_deinit();
|
|
# endif // BX_PLATFORM_RPI
|
|
}
|
|
|
|
void GlContext::resize(uint32_t _width, uint32_t _height, uint32_t _flags)
|
|
{
|
|
# if BX_PLATFORM_ANDROID
|
|
if (NULL != m_display)
|
|
{
|
|
EGLNativeWindowType nwh = (EGLNativeWindowType )g_platformData.nwh;
|
|
eglMakeCurrent(m_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
|
|
eglDestroySurface(m_display, m_surface);
|
|
m_surface = eglCreateWindowSurface(m_display, m_config, nwh, NULL);
|
|
BGFX_FATAL(m_surface != EGL_NO_SURFACE, Fatal::UnableToInitialize, "Failed to create surface.");
|
|
EGLBoolean success = eglMakeCurrent(m_display, m_surface, m_surface, m_context);
|
|
BGFX_FATAL(success, Fatal::UnableToInitialize, "Failed to set context.");
|
|
|
|
EGLint format;
|
|
eglGetConfigAttrib(m_display, m_config, EGL_NATIVE_VISUAL_ID, &format);
|
|
ANativeWindow_setBuffersGeometry( (ANativeWindow*)g_platformData.nwh, _width, _height, format);
|
|
}
|
|
# elif BX_PLATFORM_EMSCRIPTEN
|
|
emscripten_set_canvas_size(_width, _height);
|
|
# else
|
|
BX_UNUSED(_width, _height);
|
|
# endif // BX_PLATFORM_*
|
|
|
|
if (NULL != m_display)
|
|
{
|
|
bool vsync = !!(_flags&BGFX_RESET_VSYNC);
|
|
eglSwapInterval(m_display, vsync ? 1 : 0);
|
|
}
|
|
}
|
|
|
|
uint64_t GlContext::getCaps() const
|
|
{
|
|
return BX_ENABLED(0
|
|
| BX_PLATFORM_LINUX
|
|
| BX_PLATFORM_WINDOWS
|
|
)
|
|
? BGFX_CAPS_SWAP_CHAIN
|
|
: 0
|
|
;
|
|
}
|
|
|
|
SwapChainGL* GlContext::createSwapChain(void* _nwh)
|
|
{
|
|
return BX_NEW(g_allocator, SwapChainGL)(m_display, m_config, m_context, (EGLNativeWindowType)_nwh);
|
|
}
|
|
|
|
void GlContext::destroySwapChain(SwapChainGL* _swapChain)
|
|
{
|
|
BX_DELETE(g_allocator, _swapChain);
|
|
}
|
|
|
|
void GlContext::swap(SwapChainGL* _swapChain)
|
|
{
|
|
makeCurrent(_swapChain);
|
|
|
|
if (NULL == _swapChain)
|
|
{
|
|
if (NULL != m_display)
|
|
{
|
|
eglSwapBuffers(m_display, m_surface);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
_swapChain->swapBuffers();
|
|
}
|
|
}
|
|
|
|
void GlContext::makeCurrent(SwapChainGL* _swapChain)
|
|
{
|
|
if (m_current != _swapChain)
|
|
{
|
|
m_current = _swapChain;
|
|
|
|
if (NULL == _swapChain)
|
|
{
|
|
if (NULL != m_display)
|
|
{
|
|
eglMakeCurrent(m_display, m_surface, m_surface, m_context);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
_swapChain->makeCurrent();
|
|
}
|
|
}
|
|
}
|
|
|
|
void GlContext::import()
|
|
{
|
|
BX_TRACE("Import:");
|
|
# if BX_PLATFORM_WINDOWS || BX_PLATFORM_LINUX
|
|
void* glesv2 = bx::dlopen("libGLESv2." BX_DL_EXT);
|
|
# define GL_EXTENSION(_optional, _proto, _func, _import) \
|
|
{ \
|
|
if (NULL == _func) \
|
|
{ \
|
|
_func = (_proto)bx::dlsym(glesv2, #_import); \
|
|
BX_TRACE("\t%p " #_func " (" #_import ")", _func); \
|
|
BGFX_FATAL(_optional || NULL != _func, Fatal::UnableToInitialize, "Failed to create OpenGLES context. eglGetProcAddress(\"%s\")", #_import); \
|
|
} \
|
|
}
|
|
# else
|
|
# define GL_EXTENSION(_optional, _proto, _func, _import) \
|
|
{ \
|
|
if (NULL == _func) \
|
|
{ \
|
|
_func = (_proto)eglGetProcAddress(#_import); \
|
|
BX_TRACE("\t%p " #_func " (" #_import ")", _func); \
|
|
BGFX_FATAL(_optional || NULL != _func, Fatal::UnableToInitialize, "Failed to create OpenGLES context. eglGetProcAddress(\"%s\")", #_import); \
|
|
} \
|
|
}
|
|
# endif // BX_PLATFORM_
|
|
# include "glimports.h"
|
|
}
|
|
|
|
} /* namespace gl */ } // namespace bgfx
|
|
|
|
# endif // BGFX_USE_EGL
|
|
#endif // (BGFX_CONFIG_RENDERER_OPENGLES || BGFX_CONFIG_RENDERER_OPENGL)
|