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Re: [Qemu-devel] [PATCH] OpenGL for OS X

From: Philip Boulain
Subject: Re: [Qemu-devel] [PATCH] OpenGL for OS X
Date: Wed, 6 Feb 2008 12:39:36 +0000 
On 6 Feb 2008, at 06:00, Gwenole Beauchesne wrote:

2008/2/5, Fabrice Bellard <address@hidden>:

This is an SDL related issue (i.e. SDL may or may not use OpenGL to
display graphics). Fixing SDL for Mac OS X would also be interesting.


I think SDL trunk (1.3) supports OpenGL rendering more specifically
for various platforms.

Besides, on my MacBook, fullscreen SDL with a HW surface can indeed
perform much better (550 Mpixels/sec) than fullscreen GL (190
Mpixels/sec). With a SW surface, results are equivalent to GL though.

In windowed (800x600) mode, SDL performs at 28 Mpixels/sec and GL at
150 Mpixels/sec. So, SDL 1.2 for OSX (CG?) in windowed mode is indeed
sub-optimal. I have not tried with SDL trunk yet.

You can get my tests as svn co
http://svn.beauchesne.info/svn/gwenole/projects/blitter-tests/trunk
blitter-tests
After some more figures? Modern MacBook Pro (ATI Radeon X1600), just ./configure'd and make'd with defaults: 

WINDOWED

X11 (Apple's server, circa OS X 10.4) best:
* Testing XShmPutImage()
  607 frames in 10.0 secs, 60.53 fps, 47.600 Mpixels/sec

SDL (1.2.12 stable release) best:
* Testing SDL_Blit() with RGB masks 00ff0000,0000ff00,000000ff
  600 frames in 10.0 secs, 59.86 fps, 47.078 Mpixels/sec

OpenGL (without pixel buffer objects; with was slower) best:
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_BGRA, type GL_UNSIGNED_INT_8_8_8_8_REV 
  2628 frames in 10.0 secs, 262.67 fps, 206.571 Mpixels/sec

FULLSCREEN
X11 could only produce a screen-size window; it achieved 28.1 Mp/s for comparison. 

* Testing SDL_Blit() with RGB masks 00ff0000,0000ff00,000000ff
  1379 frames in 10.0 secs, 137.78 fps, 178.558 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_BGRA, type GL_UNSIGNED_INT_8_8_8_8_REV 
  1845 frames in 10.0 secs, 184.37 fps, 238.945 Mpixels/sec
So, yes, can confirm that stable SDL is currently slooow in windowed mode compared to OGL, and still slower in fullscreen. Interestingly, use of pixel buffer objects made things /slower/ here. I noted very heavy CPU activity for glperf for the GL_TEXTURE_2D, format GL_BGRA, type GL_UNSIGNED_BYTE case, too (also the fastest, RECTANGLE_ARB case, but this may have just been that it was shunting so much more data). 

Full details below.

LionsPhil

--- WINDOWED ---

#
# Running program x11perf
#
Global test configuration:
  Per-test duration: 10 seconds
  Display size: 1024x768, 24 bpp, windowed mode
* Testing XPutImage()
  361 frames in 10.0 secs, 35.96 fps, 28.279 Mpixels/sec
* Testing XShmPutImage()
  607 frames in 10.0 secs, 60.53 fps, 47.600 Mpixels/sec

#
# Running program sdlperf
#
Test global configuration:
  Per-test duration: 10 seconds
  Display size: 1024x768, 32 bpp, windowed mode, SW surface
* Testing SDL_Blit() with RGB masks 00ff0000,0000ff00,000000ff
  600 frames in 10.0 secs, 59.86 fps, 47.078 Mpixels/sec
* Testing SDL_Blit() with RGB masks 000000ff,0000ff00,00ff0000
  303 frames in 10.1 secs, 30.11 fps, 23.677 Mpixels/sec

#
# Running program glperf
#
OpenGL version   : 2.0 ATI-1.4.56
OpenGL vendor    : ATI Technologies Inc.
OpenGL renderer  : ATI Radeon X1600 OpenGL Engine
OpenGL extensions:
  GL_APPLE_client_storage
  GL_APPLE_texture_range
  GL_APPLE_packed_pixels
  GL_EXT_abgr
  GL_EXT_bgra
  GL_ARB_shading_language_100
  GL_ARB_fragment_program
  GL_ARB_fragment_shader
  GL_ARB_pixel_buffer_object
  GL_EXT_framebuffer_object
  GL_EXT_texture_rectangle
  GL_ARB_texture_rectangle
  GL_ARB_texture_non_power_of_two
  GL_ARB_imaging
  GL_SGI_color_matrix
Global test configuration:
  Per-test duration: 10 seconds
  Display size: 1024x768, 32 bpp, windowed mode
  Use non-power-of-two textures           : yes
  Use pixel buffer objects                : no
  Use Apple client storage extension      : no
  Use Apple texture range extension       : no
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_RGB, type GL_UNSIGNED_BYTE 
  257 frames in 10.0 secs, 25.58 fps, 20.115 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_RGBA, type GL_UNSIGNED_BYTE 
  2397 frames in 10.0 secs, 239.56 fps, 188.395 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_BGRA, type GL_UNSIGNED_BYTE 
  1034 frames in 10.0 secs, 103.21 fps, 81.171 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_BGRA, type GL_UNSIGNED_INT_8_8_8_8_REV 
  2618 frames in 10.0 secs, 261.62 fps, 205.744 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_RGB, type GL_UNSIGNED_BYTE 
  259 frames in 10.1 secs, 25.75 fps, 20.251 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_RGBA, type GL_UNSIGNED_BYTE 
  2377 frames in 10.0 secs, 237.53 fps, 186.804 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_BGRA, type GL_UNSIGNED_BYTE 
  1034 frames in 10.0 secs, 103.22 fps, 81.179 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_BGRA, type GL_UNSIGNED_INT_8_8_8_8_REV 
  2628 frames in 10.0 secs, 262.67 fps, 206.571 Mpixels/sec

#
# Running program glperf --pbo
#
OpenGL version   : 2.0 ATI-1.4.56
OpenGL vendor    : ATI Technologies Inc.
OpenGL renderer  : ATI Radeon X1600 OpenGL Engine
OpenGL extensions:
  GL_APPLE_client_storage
  GL_APPLE_texture_range
  GL_APPLE_packed_pixels
  GL_EXT_abgr
  GL_EXT_bgra
  GL_ARB_shading_language_100
  GL_ARB_fragment_program
  GL_ARB_fragment_shader
  GL_ARB_pixel_buffer_object
  GL_EXT_framebuffer_object
  GL_EXT_texture_rectangle
  GL_ARB_texture_rectangle
  GL_ARB_texture_non_power_of_two
  GL_ARB_imaging
  GL_SGI_color_matrix
Global test configuration:
  Per-test duration: 10 seconds
  Display size: 1024x768, 32 bpp, windowed mode
  Use non-power-of-two textures           : yes
  Use pixel buffer objects                : yes, copy mode
  Use Apple client storage extension      : no
  Use Apple texture range extension       : no
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_RGB, type GL_UNSIGNED_BYTE 
  250 frames in 10.1 secs, 24.80 fps, 19.507 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_RGBA, type GL_UNSIGNED_BYTE 
  1579 frames in 10.0 secs, 157.79 fps, 124.091 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_BGRA, type GL_UNSIGNED_BYTE 
  1580 frames in 10.0 secs, 157.83 fps, 124.120 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_BGRA, type GL_UNSIGNED_INT_8_8_8_8_REV 
  1580 frames in 10.0 secs, 157.91 fps, 124.182 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_RGB, type GL_UNSIGNED_BYTE 
  251 frames in 10.1 secs, 24.95 fps, 19.620 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_RGBA, type GL_UNSIGNED_BYTE 
  1579 frames in 10.0 secs, 157.79 fps, 124.091 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_BGRA, type GL_UNSIGNED_BYTE 
  1580 frames in 10.0 secs, 157.87 fps, 124.157 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_BGRA, type GL_UNSIGNED_INT_8_8_8_8_REV 
  1579 frames in 10.0 secs, 157.79 fps, 124.091 Mpixels/sec

#
# Running program glperf --persistent-pbo
#
OpenGL version   : 2.0 ATI-1.4.56
OpenGL vendor    : ATI Technologies Inc.
OpenGL renderer  : ATI Radeon X1600 OpenGL Engine
OpenGL extensions:
  GL_APPLE_client_storage
  GL_APPLE_texture_range
  GL_APPLE_packed_pixels
  GL_EXT_abgr
  GL_EXT_bgra
  GL_ARB_shading_language_100
  GL_ARB_fragment_program
  GL_ARB_fragment_shader
  GL_ARB_pixel_buffer_object
  GL_EXT_framebuffer_object
  GL_EXT_texture_rectangle
  GL_ARB_texture_rectangle
  GL_ARB_texture_non_power_of_two
  GL_ARB_imaging
  GL_SGI_color_matrix
Global test configuration:
  Per-test duration: 10 seconds
  Display size: 1024x768, 32 bpp, windowed mode
  Use non-power-of-two textures           : yes
  Use pixel buffer objects                : yes, persistent mode
  Use Apple client storage extension      : no
  Use Apple texture range extension       : no
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_RGB, type GL_UNSIGNED_BYTE 
  259 frames in 10.1 secs, 25.70 fps, 20.215 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_RGBA, type GL_UNSIGNED_BYTE 
  1469 frames in 10.0 secs, 146.78 fps, 115.435 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_BGRA, type GL_UNSIGNED_BYTE 
  1522 frames in 10.0 secs, 152.06 fps, 119.587 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_BGRA, type GL_UNSIGNED_INT_8_8_8_8_REV 
  1522 frames in 10.0 secs, 152.06 fps, 119.587 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_RGB, type GL_UNSIGNED_BYTE 
  260 frames in 10.0 secs, 25.87 fps, 20.348 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_RGBA, type GL_UNSIGNED_BYTE 
  1516 frames in 10.0 secs, 151.45 fps, 119.104 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_BGRA, type GL_UNSIGNED_BYTE 
  1521 frames in 10.0 secs, 151.96 fps, 119.509 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_BGRA, type GL_UNSIGNED_INT_8_8_8_8_REV 
  1521 frames in 10.0 secs, 151.99 fps, 119.533 Mpixels/sec

--- FULLSCREEN ---

#
# Running program x11perf
#
Global test configuration:
  Per-test duration: 10 seconds
  Display size: 1440x900, 24 bpp, fullscreen mode
* Testing XPutImage()
  219 frames in 10.0 secs, 21.81 fps, 28.261 Mpixels/sec
* Testing XShmPutImage()
  X SHM extension returned an error, disabling
  218 frames in 10.1 secs, 21.68 fps, 28.100 Mpixels/sec

#
# Running program sdlperf
#
Test global configuration:
  Per-test duration: 10 seconds
  Display size: 1440x900, 32 bpp, fullscreen mode, SW surface
* Testing SDL_Blit() with RGB masks 00ff0000,0000ff00,000000ff
  1379 frames in 10.0 secs, 137.78 fps, 178.558 Mpixels/sec
* Testing SDL_Blit() with RGB masks 000000ff,0000ff00,00ff0000
  322 frames in 10.1 secs, 32.02 fps, 41.503 Mpixels/sec

#
# Running program glperf
#
OpenGL version   : 2.0 ATI-1.4.56
OpenGL vendor    : ATI Technologies Inc.
OpenGL renderer  : ATI Radeon X1600 OpenGL Engine
OpenGL extensions:
  GL_APPLE_client_storage
  GL_APPLE_texture_range
  GL_APPLE_packed_pixels
  GL_EXT_abgr
  GL_EXT_bgra
  GL_ARB_shading_language_100
  GL_ARB_fragment_program
  GL_ARB_fragment_shader
  GL_ARB_pixel_buffer_object
  GL_EXT_framebuffer_object
  GL_EXT_texture_rectangle
  GL_ARB_texture_rectangle
  GL_ARB_texture_non_power_of_two
  GL_ARB_imaging
  GL_SGI_color_matrix
Global test configuration:
  Per-test duration: 10 seconds
  Display size: 1440x900, 32 bpp, fullscreen mode
  Use non-power-of-two textures           : yes
  Use pixel buffer objects                : no
  Use Apple client storage extension      : no
  Use Apple texture range extension       : no
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_RGB, type GL_UNSIGNED_BYTE 
  158 frames in 10.1 secs, 15.60 fps, 20.222 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_RGBA, type GL_UNSIGNED_BYTE 
  1412 frames in 10.0 secs, 141.06 fps, 182.812 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_BGRA, type GL_UNSIGNED_BYTE 
  669 frames in 10.0 secs, 66.71 fps, 86.460 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_BGRA, type GL_UNSIGNED_INT_8_8_8_8_REV 
  1843 frames in 10.0 secs, 184.12 fps, 238.614 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_RGB, type GL_UNSIGNED_BYTE 
  159 frames in 10.1 secs, 15.73 fps, 20.390 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_RGBA, type GL_UNSIGNED_BYTE 
  1532 frames in 10.0 secs, 153.06 fps, 198.369 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_BGRA, type GL_UNSIGNED_BYTE 
  668 frames in 10.0 secs, 66.67 fps, 86.409 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_BGRA, type GL_UNSIGNED_INT_8_8_8_8_REV 
  1845 frames in 10.0 secs, 184.37 fps, 238.945 Mpixels/sec

#
# Running program glperf --pbo
#
OpenGL version   : 2.0 ATI-1.4.56
OpenGL vendor    : ATI Technologies Inc.
OpenGL renderer  : ATI Radeon X1600 OpenGL Engine
OpenGL extensions:
  GL_APPLE_client_storage
  GL_APPLE_texture_range
  GL_APPLE_packed_pixels
  GL_EXT_abgr
  GL_EXT_bgra
  GL_ARB_shading_language_100
  GL_ARB_fragment_program
  GL_ARB_fragment_shader
  GL_ARB_pixel_buffer_object
  GL_EXT_framebuffer_object
  GL_EXT_texture_rectangle
  GL_ARB_texture_rectangle
  GL_ARB_texture_non_power_of_two
  GL_ARB_imaging
  GL_SGI_color_matrix
Global test configuration:
  Per-test duration: 10 seconds
  Display size: 1440x900, 32 bpp, fullscreen mode
  Use non-power-of-two textures           : yes
  Use pixel buffer objects                : yes, copy mode
  Use Apple client storage extension      : no
  Use Apple texture range extension       : no
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_RGB, type GL_UNSIGNED_BYTE 
  152 frames in 10.1 secs, 15.00 fps, 19.446 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_RGBA, type GL_UNSIGNED_BYTE 
  1068 frames in 10.0 secs, 106.68 fps, 138.261 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_BGRA, type GL_UNSIGNED_BYTE 
  1071 frames in 10.0 secs, 106.94 fps, 138.594 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_BGRA, type GL_UNSIGNED_INT_8_8_8_8_REV 
  1071 frames in 10.0 secs, 106.96 fps, 138.621 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_RGB, type GL_UNSIGNED_BYTE 
  152 frames in 10.1 secs, 15.10 fps, 19.566 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_RGBA, type GL_UNSIGNED_BYTE 
  1072 frames in 10.0 secs, 107.05 fps, 138.737 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_BGRA, type GL_UNSIGNED_BYTE 
  1072 frames in 10.0 secs, 107.10 fps, 138.806 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_BGRA, type GL_UNSIGNED_INT_8_8_8_8_REV 
  1072 frames in 10.0 secs, 107.05 fps, 138.737 Mpixels/sec

#
# Running program glperf --persistent-pbo
#
OpenGL version   : 2.0 ATI-1.4.56
OpenGL vendor    : ATI Technologies Inc.
OpenGL renderer  : ATI Radeon X1600 OpenGL Engine
OpenGL extensions:
  GL_APPLE_client_storage
  GL_APPLE_texture_range
  GL_APPLE_packed_pixels
  GL_EXT_abgr
  GL_EXT_bgra
  GL_ARB_shading_language_100
  GL_ARB_fragment_program
  GL_ARB_fragment_shader
  GL_ARB_pixel_buffer_object
  GL_EXT_framebuffer_object
  GL_EXT_texture_rectangle
  GL_ARB_texture_rectangle
  GL_ARB_texture_non_power_of_two
  GL_ARB_imaging
  GL_SGI_color_matrix
Global test configuration:
  Per-test duration: 10 seconds
  Display size: 1440x900, 32 bpp, fullscreen mode
  Use non-power-of-two textures           : yes
  Use pixel buffer objects                : yes, persistent mode
  Use Apple client storage extension      : no
  Use Apple texture range extension       : no
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_RGB, type GL_UNSIGNED_BYTE 
  158 frames in 10.1 secs, 15.64 fps, 20.270 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_RGBA, type GL_UNSIGNED_BYTE 
  1038 frames in 10.0 secs, 103.63 fps, 134.310 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_BGRA, type GL_UNSIGNED_BYTE 
  1038 frames in 10.0 secs, 103.64 fps, 134.323 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_2D, format GL_BGRA, type GL_UNSIGNED_INT_8_8_8_8_REV 
  1039 frames in 10.0 secs, 103.77 fps, 134.480 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_RGB, type GL_UNSIGNED_BYTE 
  158 frames in 10.1 secs, 15.70 fps, 20.349 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_RGBA, type GL_UNSIGNED_BYTE 
  1015 frames in 10.0 secs, 101.39 fps, 131.399 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_BGRA, type GL_UNSIGNED_BYTE 
  1039 frames in 10.0 secs, 103.74 fps, 134.453 Mpixels/sec
* Testing glTexSubImage2D with target GL_TEXTURE_RECTANGLE_ARB, format GL_BGRA, type GL_UNSIGNED_INT_8_8_8_8_REV 
  1040 frames in 10.0 secs, 103.82 fps, 134.555 Mpixels/sec
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