/*****************************************************************************
* Function Name : InitAPI
* Returns : true for success
* Description : Initialise the 3D API
*****************************************************************************/
bool PVRShellInit::ApiInitAPI()
{
int bDone;
#if defined(BUILD_OGLES2) || defined(BUILD_OVG)
EGLNativeDisplayType ndt;
#else
NativeDisplayType ndt;
#endif
gEglContext = 0;
do
{
bDone = true;
#if defined(BUILD_OGLES2) || defined(BUILD_OVG)
ndt = (EGLNativeDisplayType)OsGetNativeDisplayType();
#else
ndt = (NativeDisplayType)OsGetNativeDisplayType();
#endif
gEglDisplay = eglGetDisplay(ndt);
if(gEglDisplay == EGL_NO_DISPLAY)
{
#if defined(BUILD_OGLES2) || defined(BUILD_OVG)
gEglDisplay = eglGetDisplay((EGLNativeDisplayType)EGL_DEFAULT_DISPLAY);
#else
gEglDisplay = eglGetDisplay((NativeDisplayType)EGL_DEFAULT_DISPLAY);
#endif
}
if(!eglInitialize(gEglDisplay, &majorVersion, &minorVersion))
{
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Unable to initialise EGL\n");
m_pShell->PVRShellOutputDebug("PVRShell: EGL Error (%s)\n", StringFrom_eglGetError());
return false;
}
m_pShell->PVRShellOutputDebug("PVRShell: EGL %d.%d initialized\n", majorVersion, minorVersion);
// Check Extension avaliablility after EGL initialization
if (majorVersion > 1 || (majorVersion == 1 && minorVersion >= 1))
{
powerManagementSupported = true;
}
else
{
powerManagementSupported = PVRShellIsExtensionSupported(gEglDisplay,"EGL_IMG_power_management");
}
PVRShellData ShellDataBackUp;
memcpy((void*) &ShellDataBackUp, m_pShell->m_pShellData, sizeof(PVRShellData));
do
{
// bind OpenVG API if requested
if(m_pShell->m_pShellData->bNeedOpenVG)
{
#ifndef BUILD_OVG
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: OpenVG not supported. Compile with BUILD_OVG defined.");
return false;
#else
if(!eglBindAPI(EGL_OPENVG_API))
{
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Failed to bind OpenVG API\n");
return false;
}
m_pShell->PVRShellOutputDebug("PVRShell: OpenVG bound\n");
// Find an EGL config
gEglConfig = SelectEGLConfiguration(m_pShell->m_pShellData);
#endif
}
else
{
#if defined(BUILD_OGL)
if(!eglBindAPI(EGL_OPENGL_API))
{
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Failed to bind OpenGL API\n");
return false;
}
#else
#if defined EGL_VERSION_1_3 && defined GL_ES_VERSION_2_0
if(!eglBindAPI(EGL_OPENGL_ES_API))
{
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Failed to bind OpenGL ES API\n");
return false;
}
#endif
#endif
// Find an EGL config
gEglConfig = SelectEGLConfiguration(m_pShell->m_pShellData);
}
// Destroy the context if we already created one
if (gEglContext)
{
eglDestroyContext(gEglDisplay, gEglContext);
}
// Attempt to create a context
#if defined BUILD_OVG
gEglContext = eglCreateContext(gEglDisplay, gEglConfig, NULL, NULL);
#elif defined EGL_VERSION_1_3 && defined GL_ES_VERSION_2_0
EGLint ai32ContextAttribs[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
gEglContext = eglCreateContext(gEglDisplay, gEglConfig, NULL, ai32ContextAttribs);
#else
gEglContext = eglCreateContext(gEglDisplay, gEglConfig, NULL, NULL);
#endif
if(gEglContext == EGL_NO_CONTEXT)
{
if(m_pShell->m_pShellData->bNeedPbuffer)
{
// Disable P-buffer and try again
m_pShell->m_pShellData->bNeedPbuffer = false;
}
else if(m_pShell->m_pShellData->bNeedStencilBuffer)
{
// Disable Stencil Buffer and try again
m_pShell->m_pShellData->bNeedStencilBuffer = false;
}
else if(m_pShell->m_pShellData->nFSAAMode > 0)
{
// Still failing, reduce the mode of AA and try again
--m_pShell->m_pShellData->nFSAAMode;
}
else if(!m_pShell->m_pShellData->bSoftwareRender)
{
// Still failing, reset everything and try using a software renderer
memcpy(m_pShell->m_pShellData, (void*) &ShellDataBackUp, sizeof(PVRShellData));
m_pShell->m_pShellData->bSoftwareRender = true;
}
else
{
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Unable to create a context\n");
return false;
}
}
} while(gEglContext == EGL_NO_CONTEXT);
if(m_pShell->m_pShellData->bSoftwareRender)
{
m_pShell->PVRShellOutputDebug("PVRShell: Warning! Using the SOFTWARE renderer\n");
}
EGLint attrib_list[16];
int i = 0;
#if defined(EGL_VERSION_1_2)
if(m_pShell->m_pShellData->bNeedAlphaFormatPre) // The default is EGL_ALPHA_FORMAT_NONPRE
{
attrib_list[i++] = EGL_ALPHA_FORMAT;
attrib_list[i++] = EGL_ALPHA_FORMAT_PRE;
}
#endif
// Terminate the attribute list with EGL_NONE
attrib_list[i] = EGL_NONE;
if(m_pShell->m_pShellData->bNeedPixmap)
{
#if defined(BUILD_OGLES2) || defined(BUILD_OVG)
EGLNativePixmapType npt = (EGLNativePixmapType)OsGetNativePixmapType();
#else
NativePixmapType npt = (NativePixmapType)OsGetNativePixmapType();
#endif
m_pShell->PVRShellOutputDebug("InitAPI() Using pixmaps, about to create egl surface\n");
gEglWindow = eglCreatePixmapSurface(gEglDisplay, gEglConfig, npt, attrib_list);
}
else
{
#if defined(BUILD_OGLES2) || defined(BUILD_OVG)
EGLNativeWindowType nwt = (EGLNativeWindowType)OsGetNativeWindowType();
#else
NativeWindowType nwt = (NativeWindowType)OsGetNativeWindowType();
#endif
gEglWindow = eglCreateWindowSurface(gEglDisplay, gEglConfig, nwt, attrib_list);
// If we have failed to create a surface then try using Null
if(gEglWindow == EGL_NO_SURFACE)
{
gEglWindow = eglCreateWindowSurface(gEglDisplay, gEglConfig, NULL, attrib_list);
}
}
if (gEglWindow == EGL_NO_SURFACE)
{
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Unable to create surface\n");
return false;
}
if (!eglMakeCurrent(gEglDisplay, gEglWindow, gEglWindow, gEglContext))
{
#ifdef EGL_VERSION_1_3
if((eglGetError() == EGL_CONTEXT_LOST))
#else
if((eglGetError() == EGL_CONTEXT_LOST_IMG) && powerManagementSupported)
#endif
{
bDone = false;
}
else
{
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Unable to make context current\n");
return false;
}
}
} while(!bDone);
/*
Get correct screen width and height and
save them into
m_pShell->m_pShellData->nShellDimX and
m_pShell->m_pShellData->nShellDimY
*/
eglQuerySurface(gEglDisplay, gEglWindow,
EGL_WIDTH, (EGLint*)&m_pShell->m_pShellData->nShellDimX
);
eglQuerySurface(gEglDisplay, gEglWindow,
EGL_HEIGHT, (EGLint*)&m_pShell->m_pShellData->nShellDimY
);
/*
Done - activate requested features
*/
ApiActivatePreferences();
return true;
}
/*****************************************************************************
* Function Name : ApiInitAPI
* Returns : true for success
* Description : Initialise the 3D API
*****************************************************************************/
bool PVRShellInit::ApiInitAPI()
{
int bDone;
m_NDT = (EGLNativeDisplayType)OsGetNativeDisplayType();
m_NPT = (EGLNativePixmapType) OsGetNativePixmapType();
m_NWT = (EGLNativeWindowType) OsGetNativeWindowType();
m_EGLContext = 0;
do
{
bDone = true;
m_EGLDisplay = eglGetDisplay(m_NDT);
if(m_EGLDisplay == EGL_NO_DISPLAY)
{
#if defined(BUILD_OGLES2) || defined(BUILD_OVG) || defined(BUILD_OGLES3)
m_EGLDisplay = eglGetDisplay((EGLNativeDisplayType)EGL_DEFAULT_DISPLAY);
#else
m_EGLDisplay = eglGetDisplay((NativeDisplayType)EGL_DEFAULT_DISPLAY);
#endif
}
if(!eglInitialize(m_EGLDisplay, &m_MajorVersion, &m_MinorVersion))
{
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Unable to initialise EGL\n");
m_pShell->PVRShellOutputDebug("PVRShell: EGL Error (%s)\n", StringFrom_eglGetError());
return false;
}
m_pShell->PVRShellOutputDebug("PVRShell: EGL %d.%d initialized\n", m_MajorVersion, m_MinorVersion);
// Check Extension avaliablility after EGL initialization
if (m_MajorVersion > 1 || (m_MajorVersion == 1 && m_MinorVersion >= 1))
{
m_bPowerManagementSupported = true;
}
else
{
m_bPowerManagementSupported = PVRShellIsExtensionSupported(m_EGLDisplay,"EGL_IMG_power_management");
}
do
{
// bind OpenVG API if requested
if(m_pShell->m_pShellData->bNeedOpenVG)
{
#ifndef BUILD_OVG
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: OpenVG not supported. Compile with BUILD_OVG defined.");
return false;
#else
if(!eglBindAPI(EGL_OPENVG_API))
{
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Failed to bind OpenVG API\n");
return false;
}
m_pShell->PVRShellOutputDebug("PVRShell: OpenVG bound\n");
#endif
}
else
{
#if defined(BUILD_OGL)
if(!eglBindAPI(EGL_OPENGL_API))
{
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Failed to bind OpenGL API\n");
return false;
}
#else
#if defined EGL_VERSION_1_3 && defined GL_ES_VERSION_2_0
if(!eglBindAPI(EGL_OPENGL_ES_API))
{
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Failed to bind OpenGL ES API\n");
return false;
}
#endif
#endif
}
// Find an EGL config
m_EGLConfig = SelectEGLConfiguration(m_pShell->m_pShellData);
eglGetConfigAttrib(m_EGLDisplay, m_EGLConfig, EGL_CONFIG_ID, &m_iConfig);
// Destroy the context if we already created one
if (m_EGLContext)
{
eglDestroyContext(m_EGLDisplay, m_EGLContext);
}
// Attempt to create a context
EGLint ai32ContextAttribs[32];
int i = 0;
#if defined(EGL_VERSION_1_3) && defined(GL_ES_VERSION_2_0)
ai32ContextAttribs[i++] = EGL_CONTEXT_CLIENT_VERSION;
ai32ContextAttribs[i++] = 2;
#endif
#if defined(BUILD_OGLES2) || defined(BUILD_OGLES) || defined(BUILD_OGLES3)
if(PVRShellIsExtensionSupported(m_EGLDisplay,"EGL_IMG_context_priority"))
{
ai32ContextAttribs[i++] = EGL_CONTEXT_PRIORITY_LEVEL_IMG;
switch(m_pShell->PVRShellGet(prefPriority))
{
case 0: ai32ContextAttribs[i++] = EGL_CONTEXT_PRIORITY_LOW_IMG; break;
case 1: ai32ContextAttribs[i++] = EGL_CONTEXT_PRIORITY_MEDIUM_IMG; break;
default:ai32ContextAttribs[i++] = EGL_CONTEXT_PRIORITY_HIGH_IMG;
}
}
#endif
ai32ContextAttribs[i] = EGL_NONE;
m_EGLContext = eglCreateContext(m_EGLDisplay, m_EGLConfig, NULL, ai32ContextAttribs);
if(m_EGLContext == EGL_NO_CONTEXT)
{
if(m_iRequestedConfig > 0)
{
// We failed to create a context
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Unable to create a context\n");
return false;
}
else if(m_pShell->m_pShellData->bNeedPbuffer)
{
// Disable P-buffer and try again
m_pShell->m_pShellData->bNeedPbuffer = false;
}
else if(m_pShell->m_pShellData->bNeedStencilBuffer)
{
// Disable Stencil Buffer and try again
m_pShell->m_pShellData->bNeedStencilBuffer = false;
}
else if(m_pShell->m_pShellData->nFSAAMode > 0)
{
// Still failing, reduce the mode of AA and try again
--m_pShell->m_pShellData->nFSAAMode;
}
else
{
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Unable to create a context\n");
return false;
}
}
} while(m_EGLContext == EGL_NO_CONTEXT);
#if defined(__QNXNTO__)
int format = SCREEN_FORMAT_RGBX8888;
if(screen_set_window_property_iv((_screen_window*) m_NWT, SCREEN_PROPERTY_FORMAT, &format))
{
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Failed to set window property SCREEN_PROPERTY_FORMAT\n");
return false;
}
#if defined(BUILD_OGLES2)
int usage = SCREEN_USAGE_OPENGL_ES2;
#else
#if defined(BUILD_OGLES)
int usage = SCREEN_USAGE_OPENGL_ES1;
#else
#if defined(BUILD_OVG)
int usage = SCREEN_USAGE_OPENVG;
#endif
#endif
#endif
if(screen_set_window_property_iv((_screen_window*) m_NWT, SCREEN_PROPERTY_USAGE, &usage))
{
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Failed to set window property SCREEN_PROPERTY_USAGE\n");
return false;
}
if(screen_create_window_buffers((_screen_window*) m_NWT, 2))
{
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Failed to create window buffers\n");
return false;
}
#endif
EGLint attrib_list[16];
int i = 0;
#if defined(EGL_VERSION_1_2)
if(m_pShell->m_pShellData->bNeedAlphaFormatPre) // The default is EGL_ALPHA_FORMAT_NONPRE
{
attrib_list[i++] = EGL_ALPHA_FORMAT;
attrib_list[i++] = EGL_ALPHA_FORMAT_PRE;
}
#endif
// Terminate the attribute list with EGL_NONE
attrib_list[i] = EGL_NONE;
if(m_pShell->m_pShellData->bNeedPixmap)
{
m_pShell->PVRShellOutputDebug("InitAPI() Using pixmaps, about to create egl surface\n");
m_EGLWindow = eglCreatePixmapSurface(m_EGLDisplay, m_EGLConfig, m_NPT, attrib_list);
}
else
{
#if defined(ANDROID)
EGLint visualID;
eglGetConfigAttrib(m_EGLDisplay, m_EGLConfig, EGL_NATIVE_VISUAL_ID, &visualID);
// Change the format of our window to match our config
ANativeWindow_setBuffersGeometry(m_NWT, 0, 0, visualID);
#endif
m_EGLWindow = eglCreateWindowSurface(m_EGLDisplay, m_EGLConfig, m_NWT, attrib_list);
// If we have failed to create a surface then try using Null
if(m_EGLWindow == EGL_NO_SURFACE)
{
m_EGLWindow = eglCreateWindowSurface(m_EGLDisplay, m_EGLConfig, NULL, attrib_list);
}
}
if (m_EGLWindow == EGL_NO_SURFACE)
{
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Unable to create surface\n");
return false;
}
if (!eglMakeCurrent(m_EGLDisplay, m_EGLWindow, m_EGLWindow, m_EGLContext))
{
#ifdef EGL_VERSION_1_3
if((eglGetError() == EGL_CONTEXT_LOST))
#else
if((eglGetError() == EGL_CONTEXT_LOST_IMG) && m_bPowerManagementSupported)
#endif
{
bDone = false;
}
else
{
m_pShell->PVRShellSet(prefExitMessage, "PVRShell: Unable to make context current\n");
return false;
}
}
} while(!bDone);
/*
Get correct screen width and height and
save them into
m_pShell->m_pShellData->nShellDimX and
m_pShell->m_pShellData->nShellDimY
*/
eglQuerySurface(m_EGLDisplay, m_EGLWindow,
EGL_WIDTH, (EGLint*)&m_pShell->m_pShellData->nShellDimX
);
eglQuerySurface(m_EGLDisplay, m_EGLWindow,
EGL_HEIGHT, (EGLint*)&m_pShell->m_pShellData->nShellDimY
);
#if defined(ANDROID) && !defined(BUILD_OVG)
glViewport(0,0,m_pShell->m_pShellData->nShellDimX, m_pShell->m_pShellData->nShellDimY);
#endif
/*
Done - activate requested features
*/
ApiActivatePreferences();
return true;
}