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GLES3 now working on iOS, tried to maintain support for have bother gles2 and gles3, allowed avfoundation to be added on iOS, improved iOS example cmake generation

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Thomas Hogarth
2017-03-18 06:53:32 +00:00
parent 3a6e28da9c
commit 7ba2e728cd
9 changed files with 298 additions and 99 deletions
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57
src/osgViewer/GraphicsWindowIOS.mm
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@@ -9,9 +9,13 @@
#if OSG_GLES1_FEATURES
#import <OpenGLES/ES1/glext.h>
#else
#if defined(OSG_GLES2_FEATURES)
#define MUTLI_GLES (OSG_GLES2_FEATURES && OSG_GLES3_FEATURES)
#if OSG_GLES2_FEATURES || MUTLI_GLES
#import <OpenGLES/ES2/glext.h>
#elif defined(OSG_GLES3_FEATURES)
#endif
#if OSG_GLES3_FEATURES || MUTLI_GLES
#import <OpenGLES/ES3/glext.h>
#endif
@@ -39,6 +43,18 @@
#define GL_STENCIL_ATTACHMENT_OES GL_STENCIL_ATTACHMENT
#define GL_RGB5_A1_OES GL_RGB5_A1
#if OSG_GLES3_FEATURES && !MUTLI_GLES
#define glRenderbufferStorageMultisampleAPPLE glRenderbufferStorageMultisample
#define glDiscardFramebufferEXT glInvalidateFramebuffer
//#define glResolveMultisampleFramebufferAPPLE glResolveMultisampleFramebuffer
#define GL_DEPTH24_STENCIL8_OES GL_DEPTH24_STENCIL8
#define GL_DEPTH_COMPONENT24_OES GL_DEPTH_COMPONENT24
#define GL_READ_FRAMEBUFFER_APPLE GL_READ_FRAMEBUFFER
#define GL_DRAW_FRAMEBUFFER_APPLE GL_DRAW_FRAMEBUFFER
#endif
#endif
#include "IOSUtils.h"
@@ -514,11 +530,13 @@ typedef std::map<void*, unsigned int> TouchPointsIdMapping;
glBindFramebufferOES(GL_READ_FRAMEBUFFER_APPLE, _msaaFramebuffer);
glBindFramebufferOES(GL_DRAW_FRAMEBUFFER_APPLE, _viewFramebuffer);
glResolveMultisampleFramebufferAPPLE();
GLenum attachments[] = {GL_DEPTH_ATTACHMENT_OES, GL_COLOR_ATTACHMENT0_OES};
#ifdef OSG_GLES3_FEATURES
#if !OSG_GLES3_FEATURES
glResolveMultisampleFramebufferAPPLE();
glDiscardFramebufferEXT(GL_READ_FRAMEBUFFER_APPLE, 2, attachments);
#else
switch ([_context API])
{
case kEAGLRenderingAPIOpenGLES3:
@@ -529,17 +547,16 @@ typedef std::map<void*, unsigned int> TouchPointsIdMapping;
break;
default:
#if !OSG_GLES3_FEATURES
glResolveMultisampleFramebufferAPPLE();
#endif
glDiscardFramebufferEXT(GL_READ_FRAMEBUFFER_APPLE, 2, attachments);
break;
}
#else
glDiscardFramebufferEXT(GL_READ_FRAMEBUFFER_APPLE, 2, attachments);
#endif
#endif
}
#endif
//swap buffers (sort of i think?)
glBindRenderbufferOES(GL_RENDERBUFFER_OES, _viewRenderbuffer);
@@ -882,12 +899,16 @@ bool GraphicsWindowIOS::realizeImplementation()
#if OSG_GLES1_FEATURES
_context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES1];
#elif OSG_GLES2_FEATURES
#if OSG_GLES3_FEATURES
_context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES3];
#endif
if (!_context)
#if MULTI_GLES
_context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES3];
if(!_context) _context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];
#else
_context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];
#endif
#elif OSG_GLES3_FEATURES
_context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES3];
#endif
if (!_context || ![EAGLContext setCurrentContext:_context]) {
@@ -895,11 +916,9 @@ bool GraphicsWindowIOS::realizeImplementation()
#if OSG_GLES1_FEATURES
OSG_FATAL << "GraphicsWindowIOS::realizeImplementation: ERROR: Failed to create a valid OpenGLES1 context" << std::endl;
#elif OSG_GLES2_FEATURES
#if OSG_GLES3_FEATURES
OSG_FATAL << "GraphicsWindowIOS::realizeImplementation: ERROR: Failed to create a valid OpenGLES3 or OpenGLES2 context" << std::endl;
#else
OSG_FATAL << "GraphicsWindowIOS::realizeImplementation: ERROR: Failed to create a valid OpenGLES2 context" << std::endl;
#endif
OSG_FATAL << "GraphicsWindowIOS::realizeImplementation: ERROR: Failed to create a valid OpenGLES2" << std::endl;
#elif OSG_GLES3_FEATURES
OSG_FATAL << "GraphicsWindowIOS::realizeImplementation: ERROR: Failed to create a valid OpenGLES3 context" << std::endl;
#endif
return false;
}