Commit Graph

1990 Commits

Author SHA1 Message Date
Neil Roberts
5369b3c601 pipeline: Make the backface culling experimental public
This adds two new experimental public functions to replace the old
internal _cogl_pipeline_set_cull_face_state function:

void
cogl_pipeline_set_cull_face_mode (CoglPipeline *pipeline,
                                  CoglPipelineCullFaceMode cull_face_mode);

void
cogl_pipeline_set_front_face_winding (CoglPipeline *pipeline,
                                      CoglWinding front_winding);

There are also the corresponding getters.

https://bugzilla.gnome.org/show_bug.cgi?id=663628

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-14 18:40:27 +00:00
Neil Roberts
8be44f9876 cogl-utils: Include cogl-defines.h
cogl-utils.h needs to include cogl-defines.h so that it knows whether
COGL_HAS_GLIB_SUPPORT is defined.

https://bugzilla.gnome.org/show_bug.cgi?id=663578

Reviewed-by: Robert Bragg <robert@linux.intel.com>
Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
2011-11-14 18:40:27 +00:00
Chun-wei Fan
91f91dc678 cogl-renderer.c: Fix includes
Only include cogl-xlib-renderer.h when XLIB support is available

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-14 18:37:57 +00:00
Simos Xenitellis
ecd063da67 l10n: Updated Greek translation for cogl 2011-11-13 16:08:11 +02:00
Fran Diéguez
586a69227d Updated Galician translations 2011-11-10 00:22:35 +01:00
Jorge González
dc8f564688 Updated Spanish translation 2011-11-06 13:45:03 +01:00
Neil Roberts
1566941c2f cogl-context: Destroy texture units later on
This patch moves the call to _cogl_destroy_texture_units() from
_cogl_context_free() to later on. When destroying a GL texture the
texture units are checked. This would end up accessing invalid memory
so we need to try to destroy the texture units only after everything
that might be referencing a texture has been destroyed.

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-04 13:03:01 +00:00
Fran Diéguez
d7e1192630 Updated Galician translations 2011-11-04 13:16:09 +01:00
Luca Bruno
3a27ae0dc8 tests: Port test-path conformance test from Clutter
Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 20:31:14 +00:00
Neil Roberts
c637324663 cogl-program: Don't ignore the transpose property of matrix uniforms
When setting a matrix uniform value the transpose property was getting
lost and left uninitialized.

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 15:50:02 +00:00
Robert Bragg
89731d160e Skip clip flush in _texture_2d_copy_from_framebuffer
Although there was a comment in cogl_texture_2d_copy_from_framebuffer
explaining that we shouldn't flush the clip state, the comment was a bit
miss-leading implying we were going to explicitly set a NULL clip. Also
we weren't actually avoiding flushing the clip state since we were
passing 0 for the CoglDrawFlags.

We now pass COGL_FRAMEBUFFER_FLUSH_SKIP_CLIP_STATE in to the flags when
flushing the framebuffer state and the comment has be updated to explain
that clipping won't affect reading from the framebuffer so we don't need
to flush it.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-03 13:57:06 +00:00
Robert Bragg
e2c758c105 clip: make cogl_clip_ensure a NOP
This api is deprecated and documented to be a NOP which wasn't actually
true. This patch actually updates the function to be a NOP. Its nice
that this gets rid of a point where we flush framebuffer state because
we are looking to add a new VirtualFramebuffer interface which will need
special consideration at each of the points we flush framebuffer state.

It was a mistake that this API was ever published, we don't believe
anyone is using the api but until we break api we have to keep the
symbol. The documented semantics are vague enough that a NOP is ok since
we never explicitly documented how the state would be flushed to GL so
there would be no way to reliably use that state anyway.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-03 13:57:06 +00:00
Rob Bradford
11d38e7ce8 wayland: Port to current Wayland
This change is one logical update to update the Wayland support. This
comprises of the following parts:

* Binding to both the shell and compositor global objects - necessary since
the API for setting top level status moved to the wl_shell interface
* The Wayland visual API went away and instead you setup the EGL surface
appropriately
* The message handling was refined to reflect the current behaviour - now
obsolete comments were removed and new comments updated

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:57:01 +00:00
Rob Bradford
00ca539845 wayland: Remove unused function
The function force_roundtrip was unused and required API that was
removed from Wayland.

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:52:37 +00:00
Robert Bragg
061ef6ed06 glx: remove miss leading comment
There was a comment implying that if a rgba config has been requested
but no suitable config was found then we would automatically fall back
to an rgb config instead. Actually if no rgba visual is found we simply
fail without any automatic fall back because Cogl is not in a good
position to judge if automatic fall backs are acceptable for higher
level apis such as clutter.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-03 13:52:30 +00:00
Neil Roberts
00f0a66ec9 Use the same number for n_tex_coord_attribs in all linked shaders
On GLES2, we need to specify an array size for the texture coord
varying array. Previously this size would be decided in one of the
following ways:

- For generated vertex shaders it is always the number of layers in
  the pipeline.

- For generated fragment shaders it is the highest sampled texture
  unit in the pipeline or the number of attributes supplied by the
  primitive, whichever is higher.

- For user shaders it is usually the number of attributes supplied by
  the primitive. However, if the application tries to compile the
  shader and query the result before using it, it will always be at
  least 4.

These shaders can quite easily end up with different values for the
declaration which makes it fail to link. This patch changes it so that
all of the shaders are generated with the maximum of the number of
texture attributes supplied by the primitive and the number of layers
in the pipeline. If this value changes then the shaders are
regenerated, including user shaders. That way all of the shaders will
always have the same value.

https://bugzilla.gnome.org/show_bug.cgi?id=662184

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-02 13:50:28 +00:00
Neil Roberts
884647071c test-just-vertex-shader: Sample a texture in the fragment pipeline
Previously the layer combine on the test pipeline was set up to
replace the incoming color with the layer constant. This patch changes
it to sample the replacement color from a 1x1 texture instead. This
exposes a bug on the GLES2 backend where the vertex shader will be
generated with a size for cogl_tex_coord_out of 4 but the
corresponding declaration in the fragment shader will have n_layers,
which is 1. This makes the program fail to link and the test fails.

https://bugzilla.gnome.org/show_bug.cgi?id=662184

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-02 13:50:28 +00:00
Robert Bragg
757916f17a doc: deprecate cogl_texture_get_rowstride()
This documents that cogl_texture_get_rowstride() is deprecated (or
rather it was a mistake that the api was ever published) and also
clarifies the rowstride argument documentation for
cogl_texture_get_data() to explain how it's automatically calculated
when 0 is passed to help avoid misleading people into thinking that
cogl_texture_get_rowstride() is an appropriate way to get a valid
rowstride for that.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-02 13:34:14 +00:00
Daniel Mustieles
a1b682e051 Updated Spanish translation 2011-11-02 14:18:15 +01:00
Rico Tzschichholz
567661ccf3 build: add missing header to fix make dist 2011-11-02 07:34:26 -04:00
Zan Dobersek
d8c47e25f2 Remove inclusion of Xlib headers in Cogl headers
Xlib headers define many trivially named objects which can later cause
name collision problems when only cogl.h header is included in a program
or library. Xlib headers are now only included through including the
standalone header cogl-xlib.h.

https://bugzilla.gnome.org/show_bug.cgi?id=661174

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-01 15:55:53 +00:00
Jasper St. Pierre
5f7cdfed69 crate: Use indices
https://bugzilla.gnome.org/show_bug.cgi?id=661019

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-01 12:50:43 +00:00
Robert Bragg
b2b4eba0e7 tests: ports test-sub-texture to not depend on clutter
As part of the on going effort to port the conformance tests that were
originally written as clutter tests to be standalone cogl tests this
patch ports the test-sub-texture test to be standalone now.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:04 +00:00
Robert Bragg
c3035c231d tests: Adds test_utils_check_region() utility api
For conformance tests that want to read back a region of pixels and
check they all have the same color we now have a test_utils_check_region
utility function for that.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:04 +00:00
Robert Bragg
e0344468d8 docs: Adds various missing 2.0 sections and symbols
This adds a number of missing sections and symbols to the experimental
2.0 reference manual.
2011-11-01 12:03:04 +00:00
Robert Bragg
e9075931e3 rectangles: rely on meta-texture api for clamping
Instead of emulating _CLAMP_TO_EDGE in cogl-primitives.c we now defer to
cogl_meta_texture_foreach_in_region() to support _CLAMP_TO_EDGE for us.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:03 +00:00
Robert Bragg
4c49f83056 meta-texture: Support CLAMP_TO_EDGE
cogl_meta_texture_foreach_in_region() now directly supports
CLAMP_TO_EDGE wrap modes. This means the cogl_rectangle code will be
able to build on this and makes the logic accessible to anyone
developing custom primitives that need to support meta textures.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:03 +00:00
Robert Bragg
8cf76ee36b primitive: Add n_indices arg to _set_indices function
When associating indices with a CoglPrimitive you are now forced to
specify the number of indices that should be read when drawing.

It's easy to forget to call cogl_primitive_set_n_vertices() after
associating indices with a primitive (and anyway you can see that someone
could be led to believe Cogl can determine that implicitly somewhow) so
this should avoid a lot of mistakes with using the API.

We'd expect that setting indices and updating the n_vertices property
would go hand in hand 99% of the time anyway so this change should
be more convenient as well as less error prone.

This patch adds some documentation for cogl_primitive_set_indices and
cogl_primitive_get/set_n_vertices. It also tries to clarify how the
CoglPrimitive:n_vertices property is updated and what that property
means in relation to other functions too.

https://bugzilla.gnome.org/show_bug.cgi?id=661019

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:03 +00:00
Robert Bragg
a8fbde4710 doc: Adds some documentation for CoglIndices
This adds just some basic documentation to try and explain what
CoglIndices are useful for.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:03 +00:00
Robert Bragg
98dc73a8f7 spans: avoid normalize with normalize_factor of 1
if a normalize factor of 1 is passed then we don't need to normalize the
starting point to find the closest point equivalent to 0.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:03 +00:00
Robert Bragg
18fb1ffab5 texture: Make CoglSubTexture experimental public api
This exposes cogl_sub_texture_new() and cogl_is_sub_texture() as
experimental public API. Previously sub-textures were only exposed via
cogl_texture_new_from_sub_texture() so there wasn't a corresponding
CoglSubTexture type. A CoglSubTexture is a high-level texture defined as
a sub-region of some other parent texture. CoglSubTextures are high
level textures that implement the CoglMetaTexture interface which can
be used to manually handle texture repeating.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:03 +00:00
Robert Bragg
1ee861a82c framebuffer: adds cogl_framebuffer_get_samples_per_pixel
It's useful to be able to query back the number of
point_samples_per_pixel that may have previously be chosen using
cogl_framebuffer_set_samples_per_pixel().

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:03 +00:00
Robert Bragg
648bec9523 doc: Adds a cogl-texture-2d to the 2.0 reference manual
When we make CoglTexture2D public as experimental api we forgot to add a
corresponding section the experimental 2.0 reference manual.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:03 +00:00
Robert Bragg
90f106117f texture: Make CoglTextureRectangle experimentally public
This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For
now we just expose a single constructor;
cogl_texture_rectangle_new_with_size() but we can add more later.

This is part of going work to improve our texture apis with more
emphasis on providing low-level access to the varying semantics of
different texture types understood by the gpu instead of only trying to
present a lowest common denominator api.

CoglTextureRectangle is notably useful for never being restricted to
power of two sizes and for being sampled with non-normalized texture
coordinates which can be convenient for use a lookup tables in glsl due
to not needing separate uniforms for mapping normalized coordinates to
texels. Unlike CoglTexture2D though rectangle textures can't have a
mipmap and they only support the _CLAMP_TO_EDGE wrap mode.

Applications wanting to use CoglTextureRectangle should first check
cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE).

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:02 +00:00
Robert Bragg
e70071ff1d test-backface-culling: don't call _swap_buffers
This removes the call to cogl_framebuffer_swap_buffers in the test's
paint() function since we shouldn't assume that the framebuffer is a
CoglOnscreen framebuffer - in fact by default the framebuffer is
offscreen. The swap was resulting in a crash since
cogl_framebuffer_swap_buffers has started asserting that the given
framebuffer is a CoglOnscreen.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:02 +00:00
Robert Bragg
b72f255c0a Start to reduce dependence on glib
Since we've had several developers from admirable projects say they
would like to use Cogl but would really prefer not to pull in
gobject,gmodule and glib as extra dependencies we are investigating if
we can get to the point where glib is only an optional dependency.
Actually we feel like we only make minimal use of glib anyway, so it may
well be quite straightforward to achieve this.

This adds a --disable-glib configure option that can be used to disable
features that depend on glib.

Actually --disable-glib doesn't strictly disable glib at this point
because it's more helpful if cogl continues to build as we make
incremental progress towards this.

The first use of glib that this patch tackles is the use of
g_return_val_if_fail and g_return_if_fail which have been replaced with
equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:02 +00:00
Robert Bragg
fd67ddd56e matrix: check DIRTY_TYPE flag in _cogl_matrix_print
when printing a matrix we aim to print out the matrix type but we
weren't checking the flags first to see if the type is valid. We now
check for the DIRTY_TYPE flag and if not set we also validate the matrix
type isn't out of range.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:02 +00:00
Robert Bragg
a054b53891 matrix: init flags before tmp _translate in _look_at
In cogl_matrix_look_at we have a tmp CoglMatrix allocated on the stack
but we weren't initializing its flags before passing it to
cogl_matrix_translate which meant if we were using COGL_DEBUG=matrices
we would end up trying to print out an invalid matrix type resulting in
a crash when overrunning an array of type names.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:02 +00:00
Robert Bragg
79719347c8 framebuffer: split out CoglOnscreen code
This factors out the CoglOnscreen code from cogl-framebuffer.c so we now
have cogl-onscreen.c, cogl-onscreen.h and cogl-onscreen-private.h.
Notably some of the functions pulled out are currently namespaced as
cogl_framebuffer but we know we are planning on renaming them to be in
the cogl_onscreen namespace; such as cogl_framebuffer_swap_buffers().

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:02 +00:00
Robert Bragg
bfb69d32ab tests: Adds a really simple cogl-info program
It could be nice to extend this as Cogl gains more APIs for
introspecting its own features but for now cogl-info just uses the new
cogl_foreach_feature() API to enumerate the available features for
a default context and prints those to the terminal.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:02 +00:00
Robert Bragg
1a30f4fb15 Adds support for a mirrored repeat wrap mode
This adds COGL_PIPELINE_WRAP_MODE_MIRRORED_REPEAT enum so that mirrored
texture repeating can be used. This also adds support for emulating the
MIRRORED_REPEAT mode via the cogl-spans API so it can also be used with
meta textures such as sliced and atlas textures.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:02 +00:00
Robert Bragg
1d8fd64e1c meta-texture: This publicly exposes CoglMetaTexture
CoglMetaTexture is an interface for dealing with high level textures
that may be comprised of one or more low-level textures internally. The
interface allows the development of primitive drawing APIs that can draw
with high-level textures (such as atlas textures) even though the
GPU doesn't natively understand these texture types.

There is currently just one function that's part of this interface:
cogl_meta_texture_foreach_in_region() which allows an application to
resolve the internal, low-level textures of a high-level texture.
cogl_rectangle() uses this API for example so that it can easily emulate
the _REPEAT wrap mode for textures that the hardware can't natively
handle repeating of.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:01 +00:00
Robert Bragg
c11036cd13 spans: Represent spans with floating point precision
Instead of using integers to represent spans we now use floats instead.
This means we are no longer forced to iterate using non-normalized
coordinates so we should hopefully be able to avoid numerous redundant
unnormalize/normalize steps when using the spans api.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:01 +00:00
Robert Bragg
c7098e417d texture-2d-sliced: simplify _foreach_sub_texture_in_region
Since we can assume that all slices are CoglTexture2D textures we don't
need to chain on our implementation of _foreach_sub_texture_in_region
by calling _cogl_texture_foreach_sub_texture_in_region() for each slice.

We now simply determine the normalized virtual coordinates for the
current span inline and call the given callback inline too.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:01 +00:00
Robert Bragg
3c129f5c18 tests: ports test-wrap-modes.c to be standalone cogl test
This ports test-wrap-modes.c from being a clutter based test to one that
is a standalone cogl test.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:01 +00:00
Robert Bragg
426c8b8f41 features: Support more than 32 features!
Currently features are represented as bits in a 32bit mask so we
obviously can't have more than 32 features with that approach. The new
approach is to use the COGL_FLAGS_ macros which lets us handle bitmasks
without a size limit and we change the public api to accept individual
feature enums instead of a mask. This way there is no limit on the
number of features we can add to Cogl.

Instead of using cogl_features_available() there is a new
cogl_has_feature() function and for checking multiple features there is
cogl_has_features() which takes a zero terminated vararg list of
features.

In addition to being able to check for individual features this also
adds a way to query all the features currently available via
cogl_foreach_feature() which will call a callback for each feature.

Since the new functions take an explicit context pointer there is also
no longer any ambiguity over when users can first start to query
features.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:01 +00:00
Robert Bragg
c86f698eb9 make COGL_FEATURE_VBOS a private feature
Cogl provides a consistent public interface regardless of whether the
underlying GL driver supports VBOs so it doesn't make much sense to have
this feature as part of the public api.  We can't break the api by
removing the enum but at least we no longer ever set the feature flag.

We now have a replacement private feature flag COGL_PRIVATE_FEATURE_VBOS
which cogl now checks for internally.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:01 +00:00
Robert Bragg
69b44ac86d make COGL_FEATURE_PBOS a private feature
Cogl provides a consistent public interface regardless of whether the
underlying GL driver supports PBOs so it doesn't make much sense to have
this feature as part of the public api.  We can't break the api by
removing the enum but at least we no longer ever set the feature flag.

We now have a replacement private feature flag COGL_PRIVATE_FEATURE_PBOS
which cogl now checks for internally.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:01 +00:00
Robert Bragg
d045bea70e make COGL_FEATURE_FOUR_CLIP_PLANES a private feature
Cogl doesn't currently expose public api for clip planes so it
doesn't make much sense to have this feature as part of the public api.
We can't break the api by removing the enum but at least we no longer
ever set the feature flag.

We now have a replacement private feature flag
COGL_PRIVATE_FEATURE_FOUR_CLIP_PLANES which cogl now checks for
internally.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:00 +00:00
Robert Bragg
abbd28f484 make COGL_FEATURE_OFFSCREEN_BLIT a private feature
Cogl doesn't expose public api for blitting between framebuffers so it
doesn't make much sense to have this feature as part of the public api
currently. We can't break the api by removing the enum but at least we
no longer ever set the feature flag.

We now have a replacement private feature flag
COGL_PRIVATE_FEATURE_OFFSCREEN_BLIT which cogl now checks for
internally.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:00 +00:00