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eglewInit takes EGLDisplay parameter, will do eglIntialize internally, for now

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This commit is contained in:
Nigel Stewart 2016-01-26 22:53:39 +10:00
parent 5d47a56a25
commit fabd3248d4
5 changed files with 117 additions and 58 deletions
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11
auto/src/eglew_head.h
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@ -27,6 +27,12 @@
#include <KHR/khrplatform.h>
#include <EGL/eglplatform.h>
#include <GL/glew.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef int32_t EGLint;
typedef unsigned int EGLBoolean;
@ -79,8 +85,3 @@ struct EGLClientPixmapHI;
#define EGL_DEFAULT_DISPLAY ((EGLNativeDisplayType)0)
EGLAPI __eglMustCastToProperFunctionPointerType EGLAPIENTRY eglGetProcAddress (const char *procname);
#ifdef __cplusplus
extern "C" {
#endif

2
auto/src/eglew_tail.h
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@ -1,6 +1,6 @@
/* ------------------------------------------------------------------------ */
GLEWAPI GLenum GLEWAPIENTRY eglewInit ();
GLEWAPI GLenum GLEWAPIENTRY eglewInit (EGLDisplay display);
GLEWAPI GLboolean GLEWAPIENTRY eglewIsSupported (const char *name);
#define EGLEW_GET_VAR(x) (*(const GLboolean*)&x)

25
auto/src/glew_init_egl.c
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@ -11,32 +11,23 @@ GLboolean eglewGetExtension (const char* name)
return _glewSearchExtension(name, start, end);
}
GLenum eglewInit ()
GLenum eglewInit (EGLDisplay display)
{
GLuint dot;
GLint major, minor;
const GLubyte* version;
EGLint major, minor;
const GLubyte* extStart;
const GLubyte* extEnd;
PFNEGLGETDISPLAYPROC getDisplay = NULL;
PFNEGLINITIALIZEPROC initialize = NULL;
PFNEGLQUERYSTRINGPROC queryString = NULL;
/* Load necessary entry points */
getDisplay = (PFNEGLGETDISPLAYPROC) glewGetProcAddress("eglGetDisplay");
initialize = (PFNEGLINITIALIZEPROC) glewGetProcAddress("eglInitialize");
queryString = (PFNEGLQUERYSTRINGPROC) glewGetProcAddress("eglQueryString");
if (!getDisplay || !queryString)
if (!initialize || !queryString)
return 1;
/* query EGK version */
major = 0;
minor = 0;
version = (const GLubyte*) queryString(getDisplay(EGL_DEFAULT_DISPLAY), EGL_VERSION);
dot = _glewStrCLen(version, '.');
if (dot != 0)
{
major = version[dot-1]-'0';
minor = version[dot+1]-'0';
}
if (initialize(display, &major, &minor) != EGL_TRUE)
return 1;
EGLEW_VERSION_1_5 = ( major > 1 ) || ( major == 1 && minor >= 5 ) ? GL_TRUE : GL_FALSE;
EGLEW_VERSION_1_4 = EGLEW_VERSION_1_5 == GL_TRUE || ( major == 1 && minor >= 4 ) ? GL_TRUE : GL_FALSE;
@ -46,7 +37,7 @@ GLenum eglewInit ()
EGLEW_VERSION_1_0 = EGLEW_VERSION_1_1 == GL_TRUE || ( major == 1 && minor >= 0 ) ? GL_TRUE : GL_FALSE;
/* query EGL extension string */
extStart = (const GLubyte*) queryString(getDisplay(EGL_DEFAULT_DISPLAY), EGL_EXTENSIONS);
extStart = (const GLubyte*) queryString(display, EGL_EXTENSIONS);
if (extStart == 0)
extStart = (const GLubyte *)"";
extEnd = extStart + _glewStrLen(extStart);

6
auto/src/glew_init_tail.c
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@ -35,10 +35,14 @@ GLboolean glewExperimental = GL_FALSE;
GLenum GLEWAPIENTRY glewInit (void)
{
GLenum r;
#if defined(GLEW_EGL)
PFNEGLGETCURRENTDISPLAYPROC getCurrentDisplay = NULL;
#endif
r = glewContextInit();
if ( r != 0 ) return r;
#if defined(GLEW_EGL)
return eglewInit();
getCurrentDisplay = (PFNEGLGETCURRENTDISPLAYPROC) glewGetProcAddress("eglGetCurrentDisplay");
return eglewInit(getCurrentDisplay());
#elif defined(GLEW_OSMESA) || defined(__ANDROID__) || defined(__native_client__) || defined(__HAIKU__)
return r;
#elif defined(_WIN32)

87
auto/src/glewinfo_tail.c
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@ -159,18 +159,34 @@ EGLContext ctx;
GLboolean glewCreateContext (struct createParams *params)
{
EGLDeviceEXT devices[1];
EGLint numDevices;
EGLSurface surface;
EGLint majorVersion, minorVersion;
const EGLint attr[] = {
EGL_BUFFER_SIZE, 32,
EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER,
EGL_CONFORMANT, EGL_OPENGL_BIT,
static const EGLint configAttribs[] = {
EGL_RED_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_BLUE_SIZE, 1,
EGL_SURFACE_TYPE, EGL_PBUFFER_BIT,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_NONE
};
static const EGLint contextAttribs[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
static const EGLint pBufferAttribs[] = {
EGL_WIDTH, 128,
EGL_HEIGHT, 128,
EGL_NONE
};
EGLConfig config;
EGLint numConfig;
EGLint error;
PFNEGLQUERYDEVICESEXTPROC queryDevices = NULL;
PFNEGLGETPLATFORMDISPLAYEXTPROC getPlatformDisplay = NULL;
PFNEGLGETERRORPROC getError = NULL;
PFNEGLGETDISPLAYPROC getDisplay = NULL;
PFNEGLINITIALIZEPROC initialize = NULL;
PFNEGLBINDAPIPROC bindAPI = NULL;
@ -178,28 +194,75 @@ GLboolean glewCreateContext (struct createParams *params)
PFNEGLCREATEWINDOWSURFACEPROC createWindowSurface = NULL;
PFNEGLCREATECONTEXTPROC createContext = NULL;
PFNEGLMAKECURRENTPROC makeCurrent = NULL;
PFNEGLCREATEPBUFFERSURFACEPROC createPbufferSurface = NULL;
/* Load necessary entry points */
queryDevices = (PFNEGLQUERYDEVICESEXTPROC) eglGetProcAddress("eglQueryDevicesEXT");
getPlatformDisplay = (PFNEGLGETPLATFORMDISPLAYEXTPROC) eglGetProcAddress("eglGetPlatformDisplayEXT");
getError = (PFNEGLGETERRORPROC) eglGetProcAddress("eglGetError");
getDisplay = (PFNEGLGETDISPLAYPROC) eglGetProcAddress("eglGetDisplay");
initialize = (PFNEGLINITIALIZEPROC) eglGetProcAddress("eglInitialize");
bindAPI = (PFNEGLBINDAPIPROC) eglGetProcAddress("eglBindAPI");
chooseConfig = (PFNEGLCHOOSECONFIGPROC) eglGetProcAddress("eglChooseConfig");
createWindowSurface = (PFNEGLCREATEWINDOWSURFACEPROC) eglGetProcAddress("eglCreateWindowSurface");
createPbufferSurface = (PFNEGLCREATEPBUFFERSURFACEPROC) eglGetProcAddress("eglCreatePbufferSurface");
createContext = (PFNEGLCREATECONTEXTPROC) eglGetProcAddress("eglCreateContext");
makeCurrent = (PFNEGLMAKECURRENTPROC) eglGetProcAddress("eglMakeCurrent");
if (!getDisplay || !initialize || !bindAPI || !chooseConfig || !createWindowSurface || !createContext || !makeCurrent)
if (!getError || !getDisplay || !initialize || !bindAPI || !chooseConfig || !createWindowSurface || !createContext || !makeCurrent)
return GL_TRUE;
display = getDisplay((EGLNativeDisplayType) 0);
if (!initialize(display, &majorVersion, &minorVersion))
display = EGL_NO_DISPLAY;
if (queryDevices && getPlatformDisplay)
{
queryDevices(1, devices, &numDevices);
if (numDevices==1)
{
display = getPlatformDisplay(EGL_PLATFORM_DEVICE_EXT, devices[0], 0);
}
}
if (display==EGL_NO_DISPLAY)
{
display = getDisplay(EGL_DEFAULT_DISPLAY);
}
if (display == EGL_NO_DISPLAY)
return GL_TRUE;
bindAPI(EGL_OPENGL_API);
if (!chooseConfig(display, attr, &config, 1, &numConfig) || (numConfig != 1))
eglewInit(display);
if (bindAPI(EGL_OPENGL_API) != EGL_TRUE)
return GL_TRUE;
if (chooseConfig(display, configAttribs, &config, 1, &numConfig) != EGL_TRUE || (numConfig != 1))
return GL_TRUE;
ctx = createContext(display, config, EGL_NO_CONTEXT, contextAttribs);
if (NULL == ctx)
return GL_TRUE;
surface = EGL_NO_SURFACE;
/* Create a p-buffer surface if possible */
if (createPbufferSurface)
{
surface = createPbufferSurface(display, config, pBufferAttribs);
}
/* Create a generic surface without a native window, if necessary */
if (surface==EGL_NO_SURFACE)
{
surface = createWindowSurface(display, config, (EGLNativeWindowType) NULL, NULL);
ctx = createContext(display, config, NULL, NULL);
if (NULL == ctx) return GL_TRUE;
makeCurrent(display, surface, surface, ctx);
}
if (surface == EGL_NO_SURFACE)
return GL_TRUE;
if (makeCurrent(display, surface, surface, ctx) != EGL_TRUE)
return GL_TRUE;
error = getError();
if (error!=EGL_SUCCESS)
{
printf("eglGetError: %d\n", error);
return GL_TRUE;
}
return GL_FALSE;
}