From Konstantin Matveyev, "I've added GLES3 profile, which also enables GLES2 features (OSG_GLES3_AVAILABLE=true => OSG_GLES2_AVAILABLE=true).
If OSG_OPENGL_PROFILE="GLES3" => GraphicsWindowIOS will create gles3 context. If failed, GraphicsWindowIOS will create gles2 context. Multisampling also working. " git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14831 16af8721-9629-0410-8352-f15c8da7e697
This commit is contained in:
Robert Osfield
parent
a711fdba36
commit
166c49eedd
@ -402,7 +402,7 @@ OPTION(OSG_USE_REF_PTR_IMPLICIT_OUTPUT_CONVERSION "Set to ON to use the ref_ptr<
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# Map the OPENGL_PROFILE to OSG_GL*_AVAILABLE settings
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SET(OPENGL_PROFILE "GL2" CACHE STRING "OpenGL Profile to use, choose from GL2, GL3, GLES1, GLES2")
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SET(OPENGL_PROFILE "GL2" CACHE STRING "OpenGL Profile to use, choose from GL2, GL3, GLES1, GLES2, GLES3")
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IF ((OPENGL_PROFILE STREQUAL "GL1") OR (OPENGL_PROFILE STREQUAL "GL2"))
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OPTION(OSG_GL1_AVAILABLE "Set to OFF to disable use of OpenGL 1.x functions library." ON )
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@ -430,8 +430,12 @@ ENDIF()
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IF ((OPENGL_PROFILE STREQUAL "GLES2"))
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OPTION(OSG_GLES2_AVAILABLE "Set to OFF to disable use of OpenGL ES 2.x functions library." ON )
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ELSEIF ((OPENGL_PROFILE STREQUAL "GLES3"))
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OPTION(OSG_GLES2_AVAILABLE "Set to OFF to disable use of OpenGL ES 2.x functions library." ON )
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OPTION(OSG_GLES3_AVAILABLE "Set to OFF to disable use of OpenGL ES 3.x functions library." ON )
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ELSE()
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OPTION(OSG_GLES2_AVAILABLE "Set to OFF to disable use of OpenGL ES 2.x functions library." OFF )
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OPTION(OSG_GLES3_AVAILABLE "Set to OFF to disable use of OpenGL ES 3.x functions library." OFF )
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ENDIF()
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@ -498,9 +502,11 @@ ELSEIF(OSG_GLES2_AVAILABLE)
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IF (APPLE AND NOT ANDROID)
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SET(OPENGL_HEADER1 "#include \"TargetConditionals.h\"" CACHE STRING "#include<> line for OpenGL Header")
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SET(OPENGL_HEADER2 "#include <OpenGLES/ES2/gl.h>" CACHE STRING "#include<> line for additional OpenGL Headers if required")
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# TODO: GLES3
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ELSE()
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SET(OPENGL_HEADER1 "#include <GLES2/gl2.h>" CACHE STRING "#include<> line for OpenGL Header")
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SET(OPENGL_HEADER2 "" CACHE STRING "#include<> line for additional OpenGL Headers if required")
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# TODO: GLES3
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ENDIF()
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ELSE()
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IF (APPLE)
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@ -542,6 +548,12 @@ ELSE()
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SET(OSG_GLES2_FEATURES "false")
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ENDIF()
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IF (OSG_GLES3_AVAILABLE)
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SET(OSG_GLES3_FEATURES "true")
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ELSE()
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SET(OSG_GLES3_FEATURES "false")
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ENDIF()
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IF(ANDROID)
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IF(OSG_GLES1_AVAILABLE)
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FIND_PATH(OPENGL_INCLUDE_DIR GLES/gl.h
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@ -166,7 +166,7 @@ Section 3. Release notes on iOS build, by Thomas Hoghart
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This will give us the static build we need for iPhone.
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* Disable OSG_GL1_AVAILABLE, OSG_GL2_AVAILABLE, OSG_GL3_AVAILABLE,
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OSG_GL_DISPLAYLISTS_AVAILABLE, OSG_GL_VERTEX_FUNCS_AVAILABLE
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* Enable OSG_GLES1_AVAILABLE *OR* OSG_GLES2_AVAILABLE
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* Enable OSG_GLES1_AVAILABLE *OR* OSG_GLES2_AVAILABLE *OR* OSG_GLES3_AVAILABLE (GLES3 will enable GLES2 features)
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* Ensure OSG_WINDOWING_SYSTEM is set to IOS
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* Change FREETYPE include and library paths to an iPhone version
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(OpenFrameworks has one bundled with its distribution)
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@ -22,6 +22,7 @@
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#cmakedefine OSG_GL3_AVAILABLE
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#cmakedefine OSG_GLES1_AVAILABLE
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#cmakedefine OSG_GLES2_AVAILABLE
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#cmakedefine OSG_GLES3_AVAILABLE
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#cmakedefine OSG_GL_LIBRARY_STATIC
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#cmakedefine OSG_GL_DISPLAYLISTS_AVAILABLE
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#cmakedefine OSG_GL_MATRICES_AVAILABLE
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@ -34,6 +35,7 @@
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#define OSG_GL3_FEATURES @OSG_GL3_FEATURES@
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#define OSG_GLES1_FEATURES @OSG_GLES1_FEATURES@
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#define OSG_GLES2_FEATURES @OSG_GLES2_FEATURES@
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#define OSG_GLES3_FEATURES @OSG_GLES3_FEATURES@
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#ifndef WIN32
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@ -47,6 +47,9 @@
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#include <sstream> // for istream
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#include <iostream> // for ios::
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#ifndef GL_BGRA_EXT
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# define GL_BGRA_EXT GL_BGRA
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#endif
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/**************************************************************
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***** Begin Callback functions for istream block reading *****
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@ -10,6 +10,10 @@
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#import <OpenGLES/ES1/glext.h>
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#else
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#import <OpenGLES/ES2/glext.h>
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#if defined(OSG_GLES3_FEATURES)
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#import <OpenGLES/ES3/glext.h>
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#endif
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// in GLES2, the OES suffix if dropped from function names (from rti)
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#define glGenFramebuffersOES glGenFramebuffers
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#define glGenRenderbuffersOES glGenRenderbuffers
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@ -513,7 +517,24 @@ typedef std::map<void*, unsigned int> TouchPointsIdMapping;
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glResolveMultisampleFramebufferAPPLE();
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GLenum attachments[] = {GL_DEPTH_ATTACHMENT_OES, GL_COLOR_ATTACHMENT0_OES};
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#ifdef OSG_GLES3_FEATURES
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switch ([_context API])
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{
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case kEAGLRenderingAPIOpenGLES3:
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glBlitFramebuffer(0, 0, _backingWidth, _backingHeight,
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0, 0, _backingWidth, _backingHeight,
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GL_COLOR_BUFFER_BIT, GL_LINEAR);
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glInvalidateFramebuffer(GL_READ_FRAMEBUFFER_APPLE, 2, attachments);
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break;
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default:
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glResolveMultisampleFramebufferAPPLE();
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glDiscardFramebufferEXT(GL_READ_FRAMEBUFFER_APPLE, 2, attachments);
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break;
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}
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#else
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glDiscardFramebufferEXT(GL_READ_FRAMEBUFFER_APPLE, 2, attachments);
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#endif
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}
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#endif
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@ -860,7 +881,12 @@ bool GraphicsWindowIOS::realizeImplementation()
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#if OSG_GLES1_FEATURES
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_context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES1];
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#elif OSG_GLES2_FEATURES
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_context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];
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#if OSG_GLES3_FEATURES
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_context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES3];
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#endif
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if (!_context)
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_context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];
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#endif
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if (!_context || ![EAGLContext setCurrentContext:_context]) {
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@ -868,7 +894,11 @@ bool GraphicsWindowIOS::realizeImplementation()
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#if OSG_GLES1_FEATURES
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OSG_FATAL << "GraphicsWindowIOS::realizeImplementation: ERROR: Failed to create a valid OpenGLES1 context" << std::endl;
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#elif OSG_GLES2_FEATURES
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#if OSG_GLES3_FEATURES
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OSG_FATAL << "GraphicsWindowIOS::realizeImplementation: ERROR: Failed to create a valid OpenGLES3 or OpenGLES2 context" << std::endl;
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#else
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OSG_FATAL << "GraphicsWindowIOS::realizeImplementation: ERROR: Failed to create a valid OpenGLES2 context" << std::endl;
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#endif
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#endif
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return false;
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}
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