| Commit message (Collapse) | Author | Age | Files | Lines |
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This removes the cogl_material api which has long since been replaced by
the cogl_pipeline api.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
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The cogl_vertex_buffer has long since been deprecated by the
cogl_attribute and cogl_primitive apis. The cogl_vertex_buffer api tried
to be too clever but took away important control from the developer and
was very cumbersome to use.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
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We haven't really used the cogl fixed point api for a very long time so
for now we are simply going to remove it for 2.0.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
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Since we are getting towards a complete Cogl 2.0 api this breaks 1.x api
compatibility by no longer building a libcogl.so and instead building a
libcogl2.so library.
The headers are now installed into an include/cogl2 sub-directory that
wont conflict with an installed cogl 1.x package.
The cogl-2.0-experimental.pc pkg-config file is now named
cogl2.pc and similarly the reference manual has been renamed from
cogl-2.0-experimental to cogl2.
The examples have not been namespaced and so they are not parallel
installable.
Since we haven't yet reached the 2.0 api yet the version has been bumped
to 1.99.1
All of the conformance tests have been updated so they no longer test
the 1.x apis, and since I was going through all the tests I took the
opportunity to rename the global ctx and fb variables to test_ctx and
test_fb.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
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This re-works the SDL integration api to simplify the integration for
application developers and also allow Cogl to know when the application
is about to go idle waiting for events so it can perform idle
book-keeping work.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
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This adds public constructors which take a CoglBitmap to all primitive
texture types. This constructor should be considered the canonical
constructor for initializing the texture with data because it should
be possible to wrap any type of data in a CoglBitmap. Having at least
this single constructor avoids the need to have an explosion of
constructors such as new_from_data, new_from_pixel_buffer and
new_from_file etc.
The already available internal bitmap constructor for CoglTexture2D
has had its flags parameter removed under the assumption that flags do
not make sense for primitive textures. The meta constructor
cogl_texture_new_from_bitmap now just explicitly calls set_auto_mipmap
after constructing the texture depending on the value of the
COGL_TEXTURE_NO_AUTO_MIPMAP flag.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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This interface represents any textures that are backed by a single
texture in GL and that can be used directly with the
cogl_framebuffer_draw_attributes family of functions. This currently
equates to CoglTexture2D, CoglTexture3D and CoglTextureRectangle.
The interface currently has only one method called
cogl_primitive_set_auto_mipmap. This replaces the
COGL_TEXTURE_NO_AUTO_MIPMAP flag from the CoglTextureFlags parameter
in the constructors. None of the other flags in CoglTextureFlags make
sense for primitive textures so it doesn't seem like a good idea to
need them for primitive constructors.
There is a boolean in the vtable to mark whether a texture type is
primitive which the new cogl_is_primitive function uses. There is also
a new texture virtual called set_auto_mipmap which is only required to
be implemented for primitive textures.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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• The documentation for the framebuffer and texture interfaces had a
mis-matching open and close <note> tag so DocBook got upset and the
whole documentation disappeared.
• A lot of symbols from the cogl_framebuffer_* interface were missing
from the cogl-2.0-experimental-sections.txt file.
• cogl_framebuffer_frustum had the wrong version in its Since tag:
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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This adds experimental 2.0 api replacements for the cogl_rectangle[_*]
functions that don't depend on having a current pipeline set on the
context via cogl_{set,push}_source() or having a current framebuffer set
on the context via cogl_push_framebuffer(). The aim for 2.0 is to switch
away from having a statefull context that affects drawing to having
framebuffer drawing apis that are explicitly passed a framebuffer and
pipeline.
To test this change several of the conformance tests were updated to use
this api instead of cogl_rectangle and
cogl_rectangle_with_texture_coords. Since it's quite laborious going
through all of the conformance tests the opportunity was taken to make
other clean ups in the conformance tests to replace other uses of
1.x api with experimental 2.0 api so long as that didn't affect what was
being tested.
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This adds a public convenience wrapper around
cogl_framebuffer_read_pixels_into_bitmap which allocates a temporary
CoglBitmap to read into the application's own buffer. This can only be
used for the 99% common case where the rowstride is exactly the
bpp*width and the source is the color buffer.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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This option to GCC makes it give a warning whenever a global function
is defined without a declaration. This should catch cases were we've
defined a function but forgot to put it in a header. In that case it
is either only used within one file so we should make it static or we
should declare it in a header.
The following changes where made to fix problems:
• Some functions were made static
• cogl-path.h (the one containing the 1.0 API) was split into two
files, one defining the functions and one defining the enums so that
cogl-path.c can include the enum and function declarations from the
2.0 API as well as the function declarations from the 1.0 API.
• cogl2-clip-state has been removed. This only had one experimental
function called cogl_clip_push_from_path but as this is unstable we
might as well remove it favour of the equivalent cogl_framebuffer_*
API.
• The GLX, SDL and WGL winsys's now have a private header to define
their get_vtable function instead of directly declaring in the C
file where it is called.
• All places that were calling COGL_OBJECT_DEFINE need to have the
cogl_is_whatever function declared so these have been added either
as a public function or in a private header.
• Some files that were not including the header containing their
function declarations have been fixed to do so.
• Any unused error quark functions have been removed. If we later want
them we should add them back one by one and add a declaration for
them in a header.
• _cogl_is_framebuffer has been renamed to cogl_is_framebuffer and
made a public function with a declaration in cogl-framebuffer.h
• Similarly for CoglOnscreen.
• cogl_vdraw_indexed_attributes is called
cogl_framebuffer_vdraw_indexed_attributes in the header. The
definition has been changed to match the header.
• cogl_index_buffer_allocate has been removed. This had no declaration
and I'm not sure what it's supposed to do.
• CoglJournal has been changed to use the internal CoglObject macro so
that it won't define an exported cogl_is_journal symbol.
• The _cogl_blah_pointer_from_handle functions have been removed.
CoglHandle isn't used much anymore anyway and in the few places
where it is used I think it's safe to just use the implicit cast
from void* to the right type.
• The test-utils.h header for the conformance tests explicitly
disables the -Wmissing-declaration option using a pragma because all
of the tests declare their main function without a header. Any
mistakes relating to missing declarations aren't really important
for the tests.
• cogl_quaternion_init_from_quaternion and init_from_matrix have been
given declarations in cogl-quaternion.h
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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This updates the RELEASING notes to state that we should enable wayland
support when preparing and testing for a release.
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This removes the notes about explicitly testing a release on GLES2 and
with the different pipeline backends since the test suite now does this
for us.
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The idea is that CoglPixelBuffer should just be a buffer that can be
used for pixel data and it has no idea about the details of any images
that are stored in it. This is analogous to CoglAttributeBuffer which
itself does not have any information about the attributes. When you
want to use a pixel buffer you should create a CoglBitmap which points
to a region of the attribute buffer and provides the extra needed
information such as the width, height and format. That way it is also
possible to use a single CoglPixelBuffer with multiple bitmaps.
The changes that are made are:
• cogl_pixel_buffer_new_with_size has been removed and in its place is
cogl_bitmap_new_with_size. This will create a pixel buffer at the
right size and rowstride for the given width/height/format and
immediately create a single CoglBitmap to point into it. The old
function had an out-parameter for the stride of the image but with
the new API this should be queriable from the bitmap (although there
is no function for this yet).
• There is now a public cogl_pixel_buffer_new constructor. This takes
a size in bytes and data pointer similarly to
cogl_attribute_buffer_new.
• cogl_texture_new_from_buffer has been removed. If you want to create
a texture from a pixel buffer you should wrap it up in a bitmap
first. There is already API to create a texture from a bitmap.
This patch also does a bit of header juggling because cogl-context.h
was including cogl-texture.h and cogl-framebuffer.h which were causing
some circular dependencies when cogl-bitmap.h includes cogl-context.h.
These weren't actually needed in cogl-context.h itself but a few other
headers were relying on them being included so this adds the #includes
where necessary.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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This adds a public function to read pixels from a framebuffer into a
CoglBitmap. This replaces the internal function
_cogl_read_pixels_with_rowstride because a CoglBitmap contains a
rowstride so it can be used for the same purpose. A CoglBitmap already
has public API to make one that points to a CoglPixelBuffer so this
function can be used to read pixels into a PBO. It also avoids the
need to push the framebuffer on to the context's stack so it provides
a function which can be used in the 2.0 API after the stack is
removed.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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This adds a test step to test all of the pipeline backends and GLES2.
GLES2 is currently known to fail for a few tests so it is recommended
to test it with a for loop and make a note of the list of failed
tests.
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Although these are in the public headers we should assume that no one is
using them since they were never documented so no could know what they
are useful for.
If you were to guess you'd be forgiven for thinking they were bitmasks
for checking some flags to see if a format is 24 or 32 bits. If you
looked further you might instead be forgiven for thinking that if you
masked of the least significant nibble of a pixel-format then you could
check the value against these defines. Neither of the previous
operations are reliable ways to check if a format is 24 or 32bit and
instead code must use then internal
_cogl_pixel_format_get_bytes_per_pixel() api if they want to know the
pixel size for a given format which relies on a 16 entry lookup table
using the least significant nibble of a pixel-format.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
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Although it's in a public header nothing should be using this define
since it's not documented what it could be used for. The cases where we
were using it internally were quite fragile because they were trying to
mask information from the least significant nibble of CoglPixelFormat
but really that nibble just has to be dealt with using lookup tables.
The least significant nibble of a pixel format gives information about
the bytes per pixel and whether the components are byte aligned but the
information needs to be accessed using
_cogl_pixel_format_get_byes_per_pixel() and
_cogl_pixel_format_is_endian_dependant().
Reviewed-by: Neil Roberts <neil@linux.intel.com>
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Since (A & ~COGL_PREMULT_BIT) is basically as readable as (A &
COGL_UNPREMULT_MASK) this patch removes the mask define. Without the
mask the code is slightly more explicit and there's less risk in error
caused by us forgetting to update the COGL_UNPREMULT_MASK if the way
CoglPixelFormat is defined evolves.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
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So we can get to the point where cogl.h is merely an aggregation of
header includes for the 1.x api this moves all the function prototypes
and type definitions into a cogl-context.h and a new cogl1-context.h.
Ideally no code internally should ever need to include cogl.h as it just
represents the public facing header for accessing the 1.x api which
should only be used by Clutter.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
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This adds a public function to replace the texture for a layer with
the default white texture. It is equivalent to calling
cogl_pipeline_set_layer_texture with NULL for the texture object
except that it also lets you choose a type for the texture. The idea
is that applications using a base pipeline to make multiple copies
that can share the generated shaders can use this function to make the
layer come into existence with the right texture type. Previously the
idiom would be to create a 1x1 dummy texture of the right type but
this ends up creating lots of redundant little textures.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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This adds an internal function to get the type of the underlying
hardware texture for any CoglTexture. It can return one of three
values to represent 2D textures, 3D textures or rectangle textures.
The idea is that this can be used as a replacement for
cogl_texture_get_gl_texture when only the target is required to make
it a bit less GL-centric. The implementation adds a new virtual
function which all of the texture backends now implement.
The enum is in a public header because a later patch will want to use
it from the CoglPipeline API. We may want to consider making the
function public too later.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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This adds cogl_framebuffer_ apis for drawing attributes and primitives
that replace corresponding apis that depend on the default CoglContext.
This is part of the on going effort to adapt the Cogl api so it no
longer depends on a global context variable.
All the new drawing functions also take an explicit pipeline argument
since we are also aiming to avoid being a stateful api like Cairo and
OpenGL. Being stateless makes it easier for orthogonal components to
share access to the GPU. Being stateless should also minimize any
impedance miss-match for those wanting to build higher level stateless
apis on top of Cogl.
Note: none of the legacy, global state options such as
cogl_set_depth_test_enabled(), cogl_set_backface_culling_enabled() or
cogl_program_use() are supported by these new drawing apis and if set
will simply be silently ignored.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
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This adds a public getter for the indices property of CoglPrimitive.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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This adds a public function to iterate the attributes of a
CoglPrimitive. Previously there was no way to query back the
attributes but there was methods to query back all of the other
properties.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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This adds a public function to make a copy of a primitive. The copy is
shallow which means it will share the same attributes and attribute
buffers. This could be useful for code that wants to have multiple
similar primitives with slightly modified properties.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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Previously we had functions named like
cogl_primitive_new_with_xyz_attributes() but at some point we renamed
them all to functions named like cogl_primitive_new_xyz() instead. This
updates the -sections.txt symbol listing to list the new names.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
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The GSource is created using cogl_glib_source_new which takes a
pointer to a CoglContext. The source calls cogl_poll_get_info() in its
prepare function and cogl_poll_dispatch() in its dispatch
function. The poll FDs on the source are updated according to what
Cogl reports.
The header is only included and the source only compiled if Cogl is
configured with GLib support.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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This adds two new functions:
void
cogl_poll_get_info (CoglContext *context,
CoglPollFD **poll_fds,
int *n_poll_fds,
gint64 *timeout);
void
cogl_poll_dispatch (CoglContext *context,
const CoglPollFD *poll_fds,
int n_poll_fds);
The application is expected to call the first function whenever it is
about to block to go idle, and the second function whenever it comes
out of idle. This gives Cogl winsys's the ability poll file
descriptors for events. For example when handing swap complete
notifications, it can report that it needs to block on a file
descriptor.
The two functions are backed by winsys virtual functions. There are
currently no implementations. The default handler for get_info just
reports no file descriptors and an infinite timeout.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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This was missing from the CoglContext header.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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This adds a documentation section for CoglSnippet which gives an
overview of how to use them. It also fixes some syntax errors in the
existing documentation and adds the missing pipeline functions for
adding snippets to the documentation sections file.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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The header was missing declarations for
cogl_attribute_{get,set}_{buffer,normalized}.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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This adds an experimental cogl_matrix_orthographic() function that is
more consistent with other Cogl api by taking x_1, y_1, x_2, y_2
arguments to define the top-left and bottom-right coordinates of the
orthographic coordinates instead of OpenGL style left, right, bottom and
top values.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
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There are no headers built under the winsys directory so avoid looking
for them since that breaks dist rules.
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This adds the following new public experimental functions to set
uniform values on a CoglPipeline:
void
cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline,
int uniform_location,
float value);
void
cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline,
int uniform_location,
int value);
void
cogl_pipeline_set_uniform_float (CoglPipeline *pipeline,
int uniform_location,
int n_components,
int count,
const float *value);
void
cogl_pipeline_set_uniform_int (CoglPipeline *pipeline,
int uniform_location,
int n_components,
int count,
const int *value);
void
cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline,
int uniform_location,
int dimensions,
int count,
gboolean transpose,
const float *value);
These are similar to the old functions used to set uniforms on a
CoglProgram. To get a value to pass in as the uniform_location there
is also:
int
cogl_pipeline_get_uniform_location (CoglPipeline *pipeline,
const char *uniform_name);
Conceptually the uniform locations are tied to the pipeline so that
whenever setting a value for a new pipeline the application is
expected to call this function. However in practice the uniform
locations are global to the CoglContext. The names are stored in a
linked list where the position in the list is the uniform location.
The global indices are used so that each pipeline can store a mask of
which uniforms it overrides. That way it is quicker to detect which
uniforms are different from the last pipeline that used the same
CoglProgramState so it can avoid flushing uniforms that haven't
changed. Currently the values are not actually compared which means
that it will only avoid flushing a uniform if there is a common
ancestor that sets the value (or if the same pipeline is being flushed
again - in which case the pipeline and its common ancestor are the
same thing).
The uniform values are stored in the big state of the pipeline as a
sparse linked list. A bitmask stores which values have been overridden
and only overridden values are stored in the linked list.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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This function takes a single matrix argument and replaces the matrix
with its transpose.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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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>
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This adds a number of missing sections and symbols to the experimental
2.0 reference manual.
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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>
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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>
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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>
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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>
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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>
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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>
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This adds a new experimental function, cogl_framebuffer_finish(), which
can be used to explicitly synchronize the CPU with the GPU. It's rare
that this level of explicit synchronization is desirable but for example
it can be useful during performance analysys to make sure measurements
reflect the working time of the GPU not just the time to queue commands.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
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Now that we have reasonably good Windows support, we'd like to make
sure each release still compiles there.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
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This documents that `make check` should be run as part of the release
process.
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As part of an on-going effort to get cogl-pipeline.c into a more
maintainable state this splits out all the apis relating just to
layer state. This just leaves code relating to the core CoglPipeline
and CoglPipelineLayer design left in cogl-pipeline.c.
This splits out around 2k more lines from cogl-pipeline.c although we
are still left with nearly 4k lines so we still have some way to go!
Reviewed-by: Neil Roberts <neil@linux.intel.com>
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Since cogl-pipeline.c has become very unwieldy this make a start at
trying to shape this code back into a manageable state. This patche
moves all the API relating to core pipeline state into
cogl-pipeline-state.c. This doesn't move code relating to layer state
out nor does it move any of the code supporting the core design
of CoglPipeline itself.
This change alone factors out 2k lines of code from cogl-pipeline.c
which is obviously a good start. The next step will be to factor
out the layer state and then probably look at breaking all of this
state code down into state-groups.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
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