mirror of
https://github.com/scratchfoundation/bgfx.git
synced 2024-11-29 02:55:36 -05:00
147 lines
4.1 KiB
C++
147 lines
4.1 KiB
C++
/*
|
|
* Copyright 2011-2013 Branimir Karadzic. All rights reserved.
|
|
* License: http://www.opensource.org/licenses/BSD-2-Clause
|
|
*/
|
|
|
|
#include "bgfx_p.h"
|
|
|
|
#if (BGFX_CONFIG_RENDERER_OPENGLES2|BGFX_CONFIG_RENDERER_OPENGLES3|BGFX_CONFIG_RENDERER_OPENGL)
|
|
# include "renderer_gl.h"
|
|
|
|
# if BGFX_USE_EGL
|
|
|
|
namespace bgfx
|
|
{
|
|
# define GL_IMPORT(_optional, _proto, _func) _proto _func
|
|
# include "glimports.h"
|
|
# undef GL_IMPORT
|
|
|
|
void GlContext::create(uint32_t _width, uint32_t _height)
|
|
{
|
|
EGLNativeDisplayType ndt = EGL_DEFAULT_DISPLAY;
|
|
EGLNativeWindowType nwt = (EGLNativeWindowType)NULL;
|
|
# if BX_PLATFORM_WINDOWS
|
|
ndt = GetDC(g_bgfxHwnd);
|
|
nwt = g_bgfxHwnd;
|
|
# endif // BX_PLATFORM_
|
|
m_display = eglGetDisplay(ndt);
|
|
BGFX_FATAL(m_display != EGL_NO_DISPLAY, Fatal::UnableToInitialize, "Failed to create display 0x%08x", 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);
|
|
|
|
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_NONE
|
|
};
|
|
|
|
EGLint numConfig = 0;
|
|
EGLConfig config;
|
|
success = eglChooseConfig(m_display, attrs, &config, 1, &numConfig);
|
|
BGFX_FATAL(success, Fatal::UnableToInitialize, "eglChooseConfig");
|
|
|
|
m_surface = eglCreateWindowSurface(m_display, config, nwt, NULL);
|
|
BGFX_FATAL(m_surface != EGL_NO_SURFACE, Fatal::UnableToInitialize, "Failed to create surface.");
|
|
|
|
EGLint contextAttrs[] =
|
|
{
|
|
# if BGFX_CONFIG_RENDERER_OPENGLES2
|
|
EGL_CONTEXT_CLIENT_VERSION, 2,
|
|
# elif BGFX_CONFIG_RENDERER_OPENGLES3
|
|
EGL_CONTEXT_CLIENT_VERSION, 3,
|
|
# endif // BGFX_CONFIG_RENDERER_
|
|
|
|
EGL_NONE
|
|
};
|
|
|
|
m_context = eglCreateContext(m_display, config, EGL_NO_CONTEXT, contextAttrs);
|
|
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.");
|
|
|
|
# if BX_PLATFORM_EMSCRIPTEN
|
|
emscripten_set_canvas_size(_width, _height);
|
|
# endif // BX_PLATFORM_EMSCRIPTEN
|
|
|
|
import();
|
|
}
|
|
|
|
void GlContext::destroy()
|
|
{
|
|
eglMakeCurrent(EGL_NO_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;
|
|
}
|
|
|
|
void GlContext::resize(uint32_t _width, uint32_t _height)
|
|
{
|
|
eglMakeCurrent(m_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
|
|
|
|
eglDestroySurface(m_display, m_surface);
|
|
|
|
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_NONE
|
|
};
|
|
|
|
EGLint numConfig = 0;
|
|
EGLConfig config;
|
|
EGLBoolean success = eglChooseConfig(m_display, attrs, &config, 1, &numConfig);
|
|
BGFX_FATAL(success, Fatal::UnableToInitialize, "eglChooseConfig");
|
|
|
|
EGLNativeWindowType nwt = (EGLNativeWindowType)NULL;
|
|
# if BX_PLATFORM_WINDOWS
|
|
nwt = g_bgfxHwnd;
|
|
# endif // BX_PLATFORM_
|
|
|
|
m_surface = eglCreateWindowSurface(m_display, config, nwt, NULL);
|
|
BGFX_FATAL(m_surface != EGL_NO_SURFACE, Fatal::UnableToInitialize, "Failed to create surface.");
|
|
|
|
eglMakeCurrent(m_display, m_surface, m_surface, m_context);
|
|
}
|
|
|
|
void GlContext::swap()
|
|
{
|
|
eglMakeCurrent(m_display, m_surface, m_surface, m_context);
|
|
eglSwapBuffers(m_display, m_surface);
|
|
}
|
|
|
|
void GlContext::import()
|
|
{
|
|
# if !BX_PLATFORM_EMSCRIPTEN
|
|
# define GL_IMPORT(_optional, _proto, _func) \
|
|
{ \
|
|
_func = (_proto)eglGetProcAddress(#_func); \
|
|
BX_TRACE(#_func " 0x%08x", _func); \
|
|
BGFX_FATAL(_optional || NULL != _func, Fatal::UnableToInitialize, "Failed to create OpenGLES context. eglGetProcAddress(\"%s\")", #_func); \
|
|
}
|
|
# include "glimports.h"
|
|
# undef GL_IMPORT
|
|
# endif // !BX_PLATFORM_EMSCRIPTEN
|
|
}
|
|
|
|
} // namespace bgfx
|
|
|
|
# endif // BGFX_USE_EGL
|
|
#endif // (BGFX_CONFIG_RENDERER_OPENGLES2|BGFX_CONFIG_RENDERER_OPENGLES3|BGFX_CONFIG_RENDERER_OPENGL)
|