mirror of
https://github.com/scratchfoundation/bgfx.git
synced 2024-11-28 18:45:54 -05:00
128 lines
3.7 KiB
C++
128 lines
3.7 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_WGL
|
|
|
|
namespace bgfx
|
|
{
|
|
PFNWGLGETPROCADDRESSPROC wglGetProcAddress;
|
|
PFNWGLMAKECURRENTPROC wglMakeCurrent;
|
|
PFNWGLCREATECONTEXTPROC wglCreateContext;
|
|
PFNWGLDELETECONTEXTPROC wglDeleteContext;
|
|
|
|
# define GL_IMPORT(_optional, _proto, _func) _proto _func
|
|
# include "glimports.h"
|
|
# undef GL_IMPORT
|
|
|
|
void GlContext::create(uint32_t _width, uint32_t _height)
|
|
{
|
|
m_opengl32dll = LoadLibrary("opengl32.dll");
|
|
BGFX_FATAL(NULL != m_opengl32dll, Fatal::UnableToInitialize, "Failed to load opengl32.dll.");
|
|
|
|
wglGetProcAddress = (PFNWGLGETPROCADDRESSPROC)GetProcAddress(m_opengl32dll, "wglGetProcAddress");
|
|
BGFX_FATAL(NULL != wglGetProcAddress, Fatal::UnableToInitialize, "Failed get wglGetProcAddress.");
|
|
|
|
wglMakeCurrent = (PFNWGLMAKECURRENTPROC)GetProcAddress(m_opengl32dll, "wglMakeCurrent");
|
|
BGFX_FATAL(NULL != wglMakeCurrent, Fatal::UnableToInitialize, "Failed get wglMakeCurrent.");
|
|
|
|
wglCreateContext = (PFNWGLCREATECONTEXTPROC)GetProcAddress(m_opengl32dll, "wglCreateContext");
|
|
BGFX_FATAL(NULL != wglCreateContext, Fatal::UnableToInitialize, "Failed get wglCreateContext.");
|
|
|
|
wglDeleteContext = (PFNWGLDELETECONTEXTPROC)GetProcAddress(m_opengl32dll, "wglDeleteContext");
|
|
BGFX_FATAL(NULL != wglDeleteContext, Fatal::UnableToInitialize, "Failed get wglDeleteContext.");
|
|
|
|
m_hdc = GetDC(g_bgfxHwnd);
|
|
BGFX_FATAL(NULL != m_hdc, Fatal::UnableToInitialize, "GetDC failed!");
|
|
|
|
PIXELFORMATDESCRIPTOR pfd;
|
|
memset(&pfd, 0, sizeof(pfd) );
|
|
pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
|
|
pfd.nVersion = 1;
|
|
pfd.iPixelType = PFD_TYPE_RGBA;
|
|
pfd.cColorBits = 32;
|
|
pfd.cAlphaBits = 8;
|
|
pfd.cDepthBits = 24;
|
|
pfd.cStencilBits = 8;
|
|
pfd.iLayerType = PFD_MAIN_PLANE;
|
|
|
|
int pixelFormat = ChoosePixelFormat(m_hdc, &pfd);
|
|
BGFX_FATAL(0 != pixelFormat, Fatal::UnableToInitialize, "ChoosePixelFormat failed!");
|
|
|
|
DescribePixelFormat(m_hdc, pixelFormat, sizeof(PIXELFORMATDESCRIPTOR), &pfd);
|
|
|
|
BX_TRACE("Pixel format:\n"
|
|
"\tiPixelType %d\n"
|
|
"\tcColorBits %d\n"
|
|
"\tcAlphaBits %d\n"
|
|
"\tcDepthBits %d\n"
|
|
"\tcStencilBits %d\n"
|
|
, pfd.iPixelType
|
|
, pfd.cColorBits
|
|
, pfd.cAlphaBits
|
|
, pfd.cDepthBits
|
|
, pfd.cStencilBits
|
|
);
|
|
|
|
int result;
|
|
result = SetPixelFormat(m_hdc, pixelFormat, &pfd);
|
|
BGFX_FATAL(0 != result, Fatal::UnableToInitialize, "SetPixelFormat failed!");
|
|
|
|
m_context = wglCreateContext(m_hdc);
|
|
BGFX_FATAL(NULL != m_context, Fatal::UnableToInitialize, "wglCreateContext failed!");
|
|
|
|
result = wglMakeCurrent(m_hdc, m_context);
|
|
BGFX_FATAL(0 != result, Fatal::UnableToInitialize, "wglMakeCurrent failed!");
|
|
|
|
import();
|
|
}
|
|
|
|
void GlContext::destroy()
|
|
{
|
|
wglMakeCurrent(NULL, NULL);
|
|
|
|
wglDeleteContext(m_context);
|
|
m_context = NULL;
|
|
|
|
ReleaseDC(g_bgfxHwnd, m_hdc);
|
|
m_hdc = NULL;
|
|
|
|
FreeLibrary(m_opengl32dll);
|
|
m_opengl32dll = NULL;
|
|
}
|
|
|
|
void GlContext::resize(uint32_t _width, uint32_t _height)
|
|
{
|
|
}
|
|
|
|
void GlContext::swap()
|
|
{
|
|
wglMakeCurrent(m_hdc, m_context);
|
|
SwapBuffers(m_hdc);
|
|
}
|
|
|
|
void GlContext::import()
|
|
{
|
|
# define GL_IMPORT(_optional, _proto, _func) \
|
|
{ \
|
|
_func = (_proto)wglGetProcAddress(#_func); \
|
|
if (_func == NULL) \
|
|
{ \
|
|
_func = (_proto)GetProcAddress(m_opengl32dll, #_func); \
|
|
} \
|
|
BGFX_FATAL(_optional || NULL != _func, Fatal::UnableToInitialize, "Failed to create OpenGL context. wglGetProcAddress(\"%s\")", #_func); \
|
|
}
|
|
# include "glimports.h"
|
|
# undef GL_IMPORT
|
|
}
|
|
|
|
} // namespace bgfx
|
|
|
|
# endif // BGFX_USE_WGL
|
|
#endif // (BGFX_CONFIG_RENDERER_OPENGLES2|BGFX_CONFIG_RENDERER_OPENGLES3|BGFX_CONFIG_RENDERER_OPENGL)
|