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Author SHA1 Message Date
Neil Roberts
d63dfba113 cogl-pango: Add a missing backslash in the Makefile
There was a missing backslash in the LDFLAGS for libcogl-pango2. This
was stopping it having the right library version information and the
library would have the wrong filename.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit cf3d2b3de84d4e1e90b83cf3f69653f38997ef97)
2013-02-20 14:55:44 +00:00
Neil Roberts
29983a7e2c buffer: Don't set the invalidate hint when requesting read access
glMapBufferRange is documented to fail with GL_INVALID_OPERATION if
GL_MAP_INVALIDATE_BUFFER_BIT is set as well as GL_MAP_READ_BIT. I
guess this makes sense when only read access is requested because
there would be no point in reading back uninitialised data. However,
Clutter requests read/write access with the discard hint when
rendering to a CoglBitmap with Cairo. The data is new so the discard
hint makes sense but it also needs read access so that it can read
back the data it just wrote for blending.

This patch works around the GL restriction by skipping the discard
hints if read access is requested. If the buffer discard hint is set
along with read access it will recreate the buffer store as an
alternative way to discard the buffer as it does in the case where the
GL_ARB_map_buffer_range extension is not supported.

https://bugzilla.gnome.org/show_bug.cgi?id=694164

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 986675d6043e8701f2d65415cf72ffc91734debd)
2013-02-19 15:03:30 +00:00
Neil Roberts
861b119a53 journal: Dirty the modelview matrix state when flushing
The journal manually flushes its own modelview matrix state so it
needs to mark the state as dirty so that if a primitive is drawn with
the same matrix state as the last primitive it will correctly reflush
it.

https://bugzilla.gnome.org/show_bug.cgi?id=693612

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit c7290c994c742456ff0977cb394c289afb377049)
2013-02-19 11:06:59 +00:00
Neil Roberts
806a2e5813 Add a test to check interleaving primitives and the journal
This adds a conformance test which draws a rectangle using the journal
in-between two rectangles drawn with primitives without changing any
other state. Currently this is failing because the modelview matrix
state is not correctly flushed.

The journal also flushes in own clip state so the test additionally
puts everything in a clip and verifies that that worked. This is not
currently broken but we might as well test it.

https://bugzilla.gnome.org/show_bug.cgi?id=693612

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit b703f9a1a98894a12021cbdd632e1d59214e612f)
2013-02-19 11:06:59 +00:00
Daniel Martinez
217d13537c Updated Aragonese translation 2013-02-18 21:13:17 +01:00
Piotr Drąg
c0eca175eb Updated Polish translation 2013-02-16 21:23:41 +01:00
Robert Bragg
255b815f76 conform: explicitly check value of boolean env vars
For the boolean environment variables that affect the running of the
conformance tests we now explicitly check the value of those variables
so that "0", "off" and "false" (upper or lower case) will be considered
as FALSE instead of just interpreting set as TRUE and unset as FALSE. If
the value is set to something entirely spurious then we abort with a
warning message. Thanks to Artie Eoff for suggesting this change.

https://bugzilla.gnome.org/show_bug.cgi?id=693894

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 25a8cf3607a482ca390eb9841295d1b365cbe53b)
2013-02-15 17:45:03 +00:00
Robert Bragg
7ab54be3b7 avoid redundant idle if using FRAME_SYNC to throttle
This updates the examples and test-journal which now use the _FRAME_SYNC
events to throttle rendering so that they don't install a redundant idle
handler to paint when they get a FRAME_SYNC event and instead they now
directly paint when the event is received.

(cherry picked from commit 579eb75e6ac6f50d7a9cfe5093435126158b3c96)
2013-02-15 17:44:49 +00:00
Robert Bragg
700de0ea8e doc: Add _add/remove_frame_callback api to -sections.txt
This lists the cogl_onscreen_add/remove_frame_callback functions and
CoglFrameClosure and CoglFrameCallback types in cogl2-sections.txt

(cherry picked from commit 6655fee97fb6bcc2a516b710cc8ca1179685cb8f)
2013-02-15 17:44:18 +00:00
Robert Bragg
118303a3d3 cogl-gles2-gears: use new _add_frame_callback api
This updates cogl-gles2-gears to use the new
cogl_onscreen_add_frame_callback() api to use _SYNC events for
throttling.

(cherry picked from commit 4fdb8b966ad3501842bbdff3d96b0c4e098e2646)
2013-02-15 17:43:46 +00:00
Robert Bragg
adfb561258 cogl-gles2-context: use new _add_frame_callback api
This updates cogl-gles2-context to use the new
cogl_onscreen_add_frame_callback() api to use _SYNC events for
throttling.

(cherry picked from commit 2063306645e32ceb3252ebcd2eebd33c879d7fbe)
2013-02-15 17:43:34 +00:00
Robert Bragg
4347f33917 test-journal: use new _add_frame_callback api
This updates test-journal to use the new
cogl_onscreen_add_frame_callback() api to use _SYNC events for
throttling.

(cherry picked from commit 24e6a5376ed3982f5647e2c2df0618272c381636)
2013-02-15 17:43:26 +00:00
Jasper St. Pierre
66c75f9a9d cogl-texture: Make the list of registered types global, not per-context
If we make this per-context and create two Cogl contexts, some types
won't re-register, and we'll be in a broken state where some types will
be considered not to be texture types.

https://bugzilla.gnome.org/show_bug.cgi?id=693696

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 567f049d20554bb8ea4e40fa5e72a9fd0bbd409e)
2013-02-13 18:47:16 +00:00
Jasper St. Pierre
a60f16116d cogl-context: Remove the unused buffer_types variable
https://bugzilla.gnome.org/show_bug.cgi?id=693696

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2013-02-13 18:46:51 +00:00
Neil Roberts
f79e78f648 Don't #ifdef the call to glDiscardFramebuffer
When Cogl is compiled with support for both the GL and GLES drivers it
only includes the GL header and not the GLES header. That means in
that case it would not compile in the code for the
GL_EXT_discard_framebuffer extension even though it could be used on
the GLES driver. This patch makes it use the standard names for the
GL_COLOR, GL_STENCIL etc names instead of the _EXT suffixed names and
manually defines them if we are using the GLES headers. That way the
discard code can be used unconditionally.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 59c30292d0f3c28d6e0e08bc5bf3b4b10545d856)
2013-02-13 12:05:26 +00:00
Neil Roberts
7d9e075917 Bind the framebuffer before calling glDiscardFramebuffer
This patch just adds a call to _cogl_framebuffer_flush_state to ensure
the correct framebuffer is bound before discarding its buffers.
Previously it would presumably just discard the buffers of whatever
framebuffer happened to be used last.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 37c390a5b33d4f65ff6c834e9be2f8de716635ee)
2013-02-13 12:05:22 +00:00
Neil Roberts
0494e70955 test-gles2-context: Read pixels using GL_RGBA not GL_RGB
The GLES2 spec only guarantees calling glReadPixels with GL_RGBA and
an implementation specific format. Mesa seems to now reject reading
with GL_RGB so the test had started failing. This fixes it to just
read using GL_RGBA.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 745cbcbdee0f5b4df4c6a735b03709248a551884)
2013-02-08 12:20:33 +00:00
Neil Roberts
d6dacf2f65 test-gles2-context: Use test_utils_compare_pixel instead of g_asserts
test_utils_compare_pixel makes the error report slightly easier to
read because it displays the values for the whole pixel instead of
reporting that there was a difference somewhere.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit a094ac9688a5e6b53be1cd379dc045973aab2fae)
2013-02-08 12:20:33 +00:00
Neil Roberts
1e39819c49 Fix a clear of an array allocated with alloca which had the wrong size
The array allocated for storing the difference flags for each layer in
cogl-pipeline-opengl.c was being cleared with the size of a pointer
instead of the size actually allocated for the array. Presumably this
would mean that if there is more than one layer it wouldn't clear the
array properly.

Also the size of the array was slightly wrong because it was allocating
the size of a pointer for each layer instead of the size of an
unsigned long.

This was originally reported by Jasper St. Pierre on #clutter.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 1e134dd7cd5317651be158a483c7cb2723ce8869)
2013-02-08 12:20:32 +00:00
Jasper St. Pierre
1ea8ee5932 cogl-pango: Fix some doc/introspection comments
https://bugzilla.gnome.org/show_bug.cgi?id=693360
2013-02-07 15:52:39 -05:00
Neil Roberts
8122368c6a poll: Always let the winsys add fds even if there is a zero timeout
Even if Cogl decides to set a zero timeout because there are events
queued, it still makes sense to give the winsys a chance to add file
descriptors to the list. The winsys might be relying on the list of
CoglPollFDs passed to poll_dispatch to decide whether to read from a
file descriptor and that should happen even if Cogl also woke up the
main loop because the event queue isn't empty.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 6d2f3bc4913d0f1570c09e3714ac8fe2dbfc7a03)
2013-02-04 13:35:59 +00:00
Neil Roberts
446dd70b91 sdl: Wakeup the event blocking immediately if necessary
It is expected that cogl_sdl_idle() will be called from the
application immediately before blocking in SDL_WaitEvent. However,
dispatching the onscreen events may cause more events to be queued. If
that happens we need to make sure the blocking returns immediately.
This patch makes it post the dummy event that the application chose in
order to make that happen.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 9e34a1e8ce97b67ebb2889c622f2c9f1076b087d)
2013-02-03 10:07:47 +01:00
Neil Roberts
f8108751a5 sdl: Use a 32-bit type to store the user event type number
In SDL1 the event type numbers were a single byte so there were only
reserving a byte to store the application's chosen type in
CoglRenderer. However in SDL2 they are a Uint32 and SDL_USEREVENT is
0x8000 so if the application was using that then Cogl would actually
end up posting event type 0.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 39c9177776ac601a92c6f4112558464af6968ea0)
2013-02-03 10:07:47 +01:00
Neil Roberts
b34034217a Make it possible to call swap_buffers within a frame event callback
It seems like it would be quite a reasonable design for an application
to immediately paint the buffer and call swap_buffers within the
handler for the sync event. This previously wouldn't work.

When using the GLX winsys if swap_region is called then it immediately
tries to set the pending notification flag. However if this is called
from the event callback then when the callback is complete it will
clear the flag again and the pending notification will be lost. This
patch just makes it clear the pending flag before invoking the
callback so that it can be safely queued again.

With any winsys that doesn't directly handle the sync event
notification it would almost work except that it was iterating the
live list of pending events. If the callback causes another event to
be added to this list by issuing a buffer swap then the iteration
would never complete and cogl_poll_dispatch would never return. This
patch just makes it steal the list before iterating so that any
additions will be dispatched by a later call to cogl_poll_dispatch
instead.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 2263b31594900b73900d2ce22cf70c68e7e793c6)
2013-02-03 10:07:47 +01:00
Robert Bragg
8a1353a215 This reverts the first hunk from Jerome's last patch
The first hunk from commit 93b7b4c850dd928bf21ee168a95641a8d631f713
turned out to be redundant because GLX guarantees that configs returned
by glXChooseFBConfig should be sorted with non msaa configs coming
first. The second hunk is required since we use glXGetFBConfigs in that
case which doesn't sort the configs.

I had meant to drop this part of the patch before landing it but forgot.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit b19fcc1869275826e952925af922125daf8a48de)
2013-01-31 21:12:36 +00:00
Neil Roberts
4efd82a3b6 Convert the two SDL examples to use the frame callback
The two SDL examples now throttle their rendering to the
COGL_FRAME_EVENT_SYNC event. Previously the examples would redraw
whenever a mouse motion event is received but now they additionally
wait for the sync event which means that if another mouse event comes
immediately after rendering the last frame it theoretically could
avoid blocking waiting for the last frame to complete. In practice
however the SDL winsys doesn't support swap events so it will get the
sync event immediately anyway, but it's nice to have the code as an
example and a test.

This patch also changes the mainloop a bit to do the equivalent steps
without the outer main loop which I think makes it a bit easier to
follow.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 97cdd832dded2ebfaa42ee4bc43319cb8648d01b)
2013-01-31 16:56:08 +00:00
Jerome Glisse
1f84b5c9b4 glx do not use multisample visual config for front or pixmap
There is no guaranty that glXGetFBConfigs will return fbconfig ordered
with non msaa config first. This patch make sure that non msaa config
get choose.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 93b7b4c850dd928bf21ee168a95641a8d631f713)
2013-01-31 12:28:04 +00:00
Owen W. Taylor
98e3b57d0d Add cogl_get_clock_time()
Add an API to get the current time in the time system that Cogl
is reporting timestamps. This is to be used to convert timestamps
into a different time system.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 9f3735a0c37adcfcffa485f81699b53a4cc0caf8)
2013-01-30 20:09:49 +00:00
Robert Bragg
d12f39d0e6 cogl-crate: use new _add_frame_callback api
This updates cogl-crate to use the new
cogl_onscreen_add_frame_callback() api to use _SYNC events for
throttling.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 47ea52774025b620258e00a32cb873674d0fc721)
2013-01-30 20:09:49 +00:00
Robert Bragg
51c1b3fbff cogl-hello: use new _add_frame_callback api
This updates cogl-hello to use the new
cogl_onscreen_add_frame_callback() api to use _SYNC events for
throttling.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 06d3cb0d99944e0150e30d553d248feb5f049000)
2013-01-30 20:09:49 +00:00
Owen W. Taylor
24733abf68 onscreen: Add CoglFrameInfo and _add_frame_callback() api
Add a CoglFrameInfo object that tracks timing information for frames
that are drawn. We track a frame counter and frame timing information
for each CoglOnscreen. Internally a CoglFrameInfo is automatically
created for each frame, delimited by cogl_onscreen_swap_buffers() or
cogl_onscreen_swap_region() calls.

CoglFrameInfos are delivered to applications via frame event callbacks
that can be registered with a new cogl_onscreen_add_frame_callback()
api. Two initial event types (dispatched on all platforms) have been
defined; a _SYNC event used for throttling the frame rate of
applications and a _COMPLETE event used so signify the end of a frame.

Note: This new _add_frame_callback() api makes the
cogl_onscreen_add_swap_complete_callback() api redundant and so it
should be considered deprecated. Since the _add_swap_complete_callback()
api is still experimental api, we will be looking to quickly migrate
users to the new api so we can remove the old api.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 700401667db2522045e4623d78797b17f9184501)
2013-01-30 20:09:49 +00:00
Owen W. Taylor
5ce058c0e5 Prefer OML_sync_control over SGI_video_sync when waiting for swap
When we block waiting for the swap, prefer doing that using
glXWaitForMsc() from OML_sync_control because that returns a system
time value for the precise time of the swap.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 1e8114aabc78b90373d3d5f3f7c0224f8786e399)
2013-01-30 20:09:40 +00:00
Robert Bragg
013548c109 renderer: expose CoglOutputs
This adds a cogl_renderer_foreach_output() function that can be used to
iterate the display outputs for a particular renderer.

This also updates cogl-info to use this new api so it can dump out all
the output information.

Reviewed-by: Owen W. Taylor <otaylor@fishsoup.net>

(cherry picked from commit a2abf4c4c1fd5aeafd761f965d07a0fe9a362afc)
2013-01-30 19:57:22 +00:00
Owen W. Taylor
88d8bd84f2 Add CoglOutput and track for the GLX backend
The CoglOutput object represents one output such as a monitor or
laptop panel, with information about attributes of the output such as
the position of the output within the global coordinate space, and
the refresh rate.

We don't yet publically export the ability to get output information but
we track it for the GLX backend, where we'll use it to track the refresh
rate.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit d7ef9d8d71488d0e6874f1ffc6e48700d5c82a31)
2013-01-30 19:56:45 +00:00
Neil Roberts
23eca5c793 Support cogl_renderer_get_n_fragment_texture_units() for ARBfp
There is a cogl_renderer_get_n_fragment_texture_units() function which
is documented to return the number of texture units that are
accessible from a fragment program. This just directly returns the
value from GL_MAX_TEXTURE_IMAGE_UNITS which is available in either the
GLSL extensions or the ARBfp extension. Clutter-GST relies on this to
determine whether it can use a program to convert the YUV data on the
GPU.

When the GL3 driver was added in 66c9db993595b this was changed to
only query the value when the GLSL feature is available. Previously it
would always query the value when the GL or GLES2 driver is used. This
change makes sense on master because there is no API for an
application to make its own ARBfp programs so the only way to access
texture units from a program is via GLSL. However on the 1.14 branch
this patch broke clutter-gst when GLSL is disabled because it thinks
the ARBfp programs can't use multi-texturing.

This patch just changes it to also query the value when ARBfp support
is available.

Note: it's probably note a good idea to apply this patch to master,
but only to the 1.14 branch. On master the function probably needs to
be changed anyway because it is using _COGL_GET_CONTEXT().

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2013-01-30 14:44:53 +00:00
Gheyret Kenji
d3f084d4a1 Updated Uyghur translation
Signed-off-by: Gheyret Kenji <gheyret@gmail.com>
2013-01-30 19:26:17 +09:00
Neil Roberts
1e00ff268e Bind the dummy surface or drawable when current onscreen is destroyed
Similar to commit 2c0cfdefbb9d1 for the SDL2 winsys, the GLX and EGL
window systems need to bind the dummy surface or drawable when the
currently bound onscreen is destroyed so that there will always be a
valid context bound.

Previously I got the idea that this would not be necessary on GLX
because the documentation for glXDestroyDrawable states that the
drawable won't actually be destroyed if it is currently bound until it
becomes unbound. However it doesn't say what happens if the underlying
X window is also destroyed and after testing it seems this causes a
segfault in Mesa in GLX and an XError for EGLX.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 4a464eec8c5b5832b9fd6b69746ab4ab36229182)
2013-01-25 18:21:09 +00:00
Neil Roberts
da7971f6be Don't set GL_TEXTURE_MAX_LEVEL on GLES
GL_TEXTURE_MAX_LEVEL is not supported on GLES so we can't set it. It
looks like Mesa was letting us get away with this but on other drivers
it may cause errors. The enum is not defined in the GLES headers so it
was failing to compile unless the GL driver is also enabled.

The test-texture-mipmap-get-set test is now marked as n/a on GLES2
because it can't support limiting the sampled mipmaps.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit ba51c393818582b058f5f1e66cf8d13835ad10e5)

Conflicts:
	tests/conform/test-conform-main.c
2013-01-25 18:21:09 +00:00
Neil Roberts
9a242832dc Add some defines that are missing on GLES
The GLES2 driver wasn't compiling unless the GL driver is also enabled
because some run-time conditional code was directly using GL-only
defines.

This should also fix compiling using the stock GL headers on OS X
which don't define GL_NUM_EXTENSIONS.

https://bugzilla.gnome.org/show_bug.cgi?id=692420

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 661e1719aa0b95c409c568ec91ea52b8ff90519b)
2013-01-25 18:21:09 +00:00
Neil Roberts
a749c7c1ab Query rectangle tex parameters when creating a foreign texture on GL3
Previously when creating a foreign rectangle texture it would ignore
the passed in texture information and query the texture directly when
using COGL_DRIVER_GL. However this should also work for
COGL_DRIVER_GL3. This patch changes it to check the private feature
flags for the texture querying feature instead of directly checking
the driver value.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 258c98b82027cb5074afe7844ff3954bbe928757)
2013-01-25 18:21:09 +00:00
Neil Roberts
5d6160c751 Replace some #if HAVE_COGL_GL lines with #ifdef
This was generating warnings when the GL driver is disabled.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit f26682dcc04642fed9db959c63d6c6e4261d2148)

Conflicts:
	cogl/cogl-auto-texture.c
2013-01-25 18:21:09 +00:00
Piotr Drąg
795c3fd020 l10n: Add po/POTFILES.skip file
And include the internal copy of glib here to shut up intltool.
2013-01-24 18:36:53 +01:00
Robert Bragg
d521b61a49 egl: support EGL_EXT_buffer_age
This adds support for the EGL_EXT_buffer_age extension which is a
counterpart to the GLX_EXT_buffer_age extension.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 92d869764c03d0bac6b51dac833510c22669ac4a)
2013-01-23 17:58:20 +00:00
Adel Gadllah
860fb00fdc cogl-onscreen: Add buffer_age support
Add a new BUFFER_AGE winsys feature and a get_buffer_age method to
cogl-onscreen that allows to query the value.

https://bugzilla.gnome.org/show_bug.cgi?id=669122

Reviewed-by: Neil Roberts <neil@linux.intel.com>
Reviewed-by: Robert Bragg <robert@linux.intel.com>

Note: When landing the patch I made some gtk-doc updates and changed
_get_buffer_age to return an age of 0 always if the age feature isn't
support instead of using _COGL_RETURN_VAL_IF_FAIL. -- Robert Bragg

(cherry picked from commit 427b1038051e9b53a071d8c229b363b075bb1dc0)
2013-01-23 17:58:10 +00:00
Adam Jackson
9fb0cbd45d meta-texture: Fix nonsensical <= on pointers
Comparing the pointed-to value is clearly what was meant.

Found by Coverity.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit f676352210fad856ae85962733e488bc1a832411)
2013-01-22 20:11:25 +00:00
Robert Bragg
78bea226d4 Post-release version bump to 1.13.3 2013-01-22 18:44:33 +00:00
Robert Bragg
b33b41e7ab Release 1.13.2 (snapshot) 2013-01-22 18:00:12 +00:00
Robert Bragg
24b064abf7 Updates NEWS for the 1.13.2 release 2013-01-22 18:00:11 +00:00
Patrick Welche
8c319e4bc1 Remove vestiges of libdl / dlfcn.h as cogl uses gmodule.
https://bugzilla.gnome.org/show_bug.cgi?id=691944

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 397e673446e86a9116cb7396ea094e9f8b46986e)
2013-01-22 18:00:11 +00:00
Neil Roberts
9a8a26270c test-write-texture-formats: Add fuzziness to the pixel comparisons
The rounding used when storing 10-bit per component data into an 8-bit
per component texture seems to have changed in recent versions of Mesa
which was causing this test to fail. I've also noticed this failing on
the NVidia binary driver. This patch adds some fuzziness to the
comparison so that it will pass. There is a new test_utils function
called test_utils_compare_pixel_and_alpha which is the same as
test_utils_compare_pixel except that it also compares the alpha
component.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit ce626fb3939b0f200d85ccdf32809608b879212d)
2013-01-22 18:00:11 +00:00