annotate src/video/uikit/SDL_uikitopenglview.h @ 4525:3abf0b9cafad

pelya 2010-07-12 03:53:48 PDT In function GLES_RenderCopy() in SDL_renderer_gles.c:819 there is one memcpy() that can be avoided if we're updating whole texture. Because of that the SDL 1.3 in compatibility mode is working even slower than software rendering in SDL 1.2.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 14 Jul 2010 07:31:35 -0700
parents f7b03b6838cb
children b915b3181cc2
rev   line source
2765
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
1 /*
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
3697
f7b03b6838cb Fixed bug #926
Sam Lantinga <slouken@libsdl.org>
parents: 2859
diff changeset
3 Copyright (C) 1997-2010 Sam Lantinga
2765
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
4
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
6 modify it under the terms of the GNU Lesser General Public
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
9
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
13 Lesser General Public License for more details.
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
14
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
15 You should have received a copy of the GNU Lesser General Public
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
16 License along with this library; if not, write to the Free Software
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
18
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
19 Sam Lantinga
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
20 slouken@libsdl.org
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
21 */
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
22
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
23 #import <UIKit/UIKit.h>
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
24 #import <OpenGLES/EAGL.h>
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
25 #import <OpenGLES/ES1/gl.h>
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
26 #import <OpenGLES/ES1/glext.h>
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
27 #import "SDL_uikitview.h"
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
28 /*
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
29 This class wraps the CAEAGLLayer from CoreAnimation into a convenient UIView subclass.
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
30 The view content is basically an EAGL surface you render your OpenGL scene into.
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
31 Note that setting the view non-opaque will only work if the EAGL surface has an alpha channel.
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
32 */
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
33 /* *INDENT-OFF* */
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
34 @interface SDL_uikitopenglview : SDL_uikitview {
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
35
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
36 @private
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
37 /* The pixel dimensions of the backbuffer */
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
38 GLint backingWidth;
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
39 GLint backingHeight;
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
40
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
41 EAGLContext *context;
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
42
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
43 /* OpenGL names for the renderbuffer and framebuffers used to render to this view */
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
44 GLuint viewRenderbuffer, viewFramebuffer;
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
45
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
46 /* OpenGL name for the depth buffer that is attached to viewFramebuffer, if it exists (0 if it does not exist) */
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
47 GLuint depthRenderbuffer;
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
48
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
49 }
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
50
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
51 @property (nonatomic, retain, readonly) EAGLContext *context;
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
52
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
53 - (void)swapBuffers;
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
54 - (void)setCurrentContext;
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
55
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
56 - (id)initWithFrame:(CGRect)frame
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
57 retainBacking:(BOOL)retained \
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
58 rBits:(int)rBits \
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
59 gBits:(int)gBits \
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
60 bBits:(int)bBits \
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
61 aBits:(int)aBits \
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
62 depthBits:(int)depthBits;
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
63
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
64 @end
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
65 /* *INDENT-ON* */