Commit Graph

1499 Commits

Author SHA1 Message Date
Neil Roberts
d8df30cb9c cogl-pipeline-opengl: Don't use number of tex units on fixed-function
The CoglPipeline code uses a combination of GL_MAX_TEXTURE_COORDS,
GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS and GL_MAX_TEXTURE_UNITS to
determine the maximum number of layers to allow in a pipeline. However
on fixed function hardware that doesn't advertise either GLSL or ARBfp
it was still using the first two enums which will probably just return
0 and set a GLerror. This meant that we effectively didn't support
using any layers on purely fixed function hardware. This patch changes
it to only use those two enums if the appropriate extensions are
advertised and to always use GL_MAX_TEXTURE_UNITS except on GLES2
where there is no fixed function.

https://bugzilla.gnome.org/show_bug.cgi?id=650966
2011-05-27 11:59:17 +01:00
Emmanuele Bassi
19e1dcff23 framebuffer: Bail out if the viewport has negative size 2011-05-25 16:49:09 +01:00
Emmanuele Bassi
eb81ec945c quartz: Remove X11 ifdefs 2011-05-25 16:47:38 +01:00
Emmanuele Bassi
b2e41f1bfa Initial build of a Quartz winsys stub 2011-05-24 23:08:59 +01:00
Emmanuele Bassi
df688ad0c8 build: Fix platform detection for Quartz/OSX
The location of the header files for GL and the linker flags are
different on Mac OS X than other Unices.
2011-05-24 23:08:59 +01:00
Damien Lespiau
97abcda1a2 build: Fix generation of the documentation Makefiles
Automake seems a bit fragile when trying to do cunning things like
including a file with "-include". It does not recurse into that file (if
it exists) to generate the final Makefiles.

Let's add a if BUILD_GTK_DOC guard around the gtk-doc.make inclusion
instead, hopefully should work as intended.
2011-05-18 14:14:28 +01:00
Emmanuele Bassi
57db73873e pipeline: Fix argument checking in set_depth_state() 2011-05-18 11:50:56 +01:00
Damien Lespiau
8680e3bfeb android: Expose the only android specific symbol as experimental 2011-05-17 15:24:55 +01:00
Damien Lespiau
8e949ff560 build: Allow to forcefully disable the usage cairo
Provide an option to disable cairo usage in the debugging code even if
we find the pc file.
2011-05-17 15:24:54 +01:00
Damien Lespiau
e157971cd8 debug: Allow to compile a debug Cogl without cairo
For people still wanting the debugging code, but don't have or don't
want to compile cairo for their platform.
2011-05-17 15:24:54 +01:00
Damien Lespiau
aa27ec56df android: Add a port of the Cogl hello world example 2011-05-17 15:24:54 +01:00
Damien Lespiau
f436582114 android: Add support for an EGL/Android winsys
The native window type of the EGL/Android winsys is ANativeWinow*. The
Android NDK gives you a pointer to this ANativeWindow and you just need
to configure that window using the EGLConfig you are choosing when
creating the context.

This means you have to know the ANativeWindow* window before creating
the context. This is solved here by just having a global variable you
can set with cogl_android_set_native_window() before creating the
context. This is a bit ugly though, and it conceptually belongs to the
OnScreen creation to know which ANativeWindow* to use. This would need a
"lazy context creation" mechanism, waiting for the user to create the
OnScreen to initialize the GL context.
2011-05-17 15:24:54 +01:00
Damien Lespiau
bde6979c06 framebuffer: Checks if glBindFramebuffer() exists when using GLES1
With GLES 1, frame buffers are a optional extensions. We need to make
sure the pointer exist before calling the function and do that by just
checkout the corresponding feature.
2011-05-17 15:24:54 +01:00
Damien Lespiau
d384466a58 winsys-egl: Use g_clear_error() between two context creation tries
When try_create_context() returns saying that it has to be run again to
try to create a context with an alternate configuration, it might not
have a GError set (and in fact it does not right now).
g_clear_error() handles that case where error is still NULL;
2011-05-17 15:24:54 +01:00
Damien Lespiau
051e6da887 misc: Add the single include guard to cogl-define.h
This is a generated file and maybe the reason why it was not included
the first time?
2011-05-17 15:24:54 +01:00
Damien Lespiau
dd5a1c888b gles1: Include GLES/egl.h or EGL/egl.h depending on the implementation
Early implementations provided only a GLES/egl.h while Khronos's
implementer guide now states EGL/egl.h is the One. Some implementations
keep a GLES/egl.h wrapper around EGL/egl.h for backward compatibility
while others provide EGL/egl.h only.

Also took the opportunity to factorize a bit this inclusion in
cogl-defines.h.
2011-05-17 15:24:54 +01:00
Damien Lespiau
1d6c6f0dad build: Fix the Win32 platform test for GLES2
The error message has a small typo (copy and paste from the GLES1
detection code) and the check was reversed.
2011-05-17 15:24:54 +01:00
Damien Lespiau
780c6fe05d build: Ensure EGL related variables are defined even when EGL_CHECKED=yes
When checking for EGL earlier in the configure script (ie EGL_CHECKED is
"yes"), we did not execute some EGL code. Let's split that code in two:
  - A first part that has a last change to check for EGL
  - A second one that defines variables and that should always been run
    in an EGL build
2011-05-17 15:24:54 +01:00
Damien Lespiau
3530354d5d build: Fix the GLES headers check
GLES/glext.h and GLES2/gl2ext.h need to include GLES/gl.h and
GLES2/gl2.h respectively to get the GL types.

This used to work as autoconf used to only do a preprocessor pass in
AC_CHECK_HEADER(S), but now it also tries to compile a small test
program and thus the test failed.
2011-05-17 15:24:54 +01:00
Damien Lespiau
0ac8135b87 build: Fix the Win32 platform test for GLES1
We want to bail out if trying to configure Cogl with GLES1 on Windows.
Not the opposite.
2011-05-17 15:24:54 +01:00
Damien Lespiau
25cd2e12f9 misc: Add a .vimrc file
For people using per project vimrc files, provide a vim config file that
describes Cogl's coding style.
2011-05-17 15:24:54 +01:00
Robert Bragg
cb7433cce9 Adds missing cogl-depth-state-private.h
This file was accidentally missed in the last commit
2011-05-16 18:45:51 +01:00
Robert Bragg
07c0b9f89f Add CoglDepthState API
Instead of simply extending the cogl_pipeline_ namespace to add api for
controlling the depth testing state we now break the api out. This adds
a CoglDepthState type that can be stack allocated. The members of the
structure are private but we have the following API to setup the state:

    cogl_depth_state_init
    cogl_depth_state_set_test_enabled
    cogl_depth_state_get_test_enabled
    cogl_depth_state_set_test_function
    cogl_depth_state_get_test_function
    cogl_depth_state_set_writing_enabled
    cogl_depth_state_get_writing_enabled
    cogl_depth_state_set_range
    cogl_depth_state_get_range

This removes the following experimental API which is now superseded:

    cogl_material_set_depth_test_enabled
    cogl_material_get_depth_test_enabled
    cogl_material_set_depth_test_function
    cogl_material_get_depth_test_function
    cogl_material_set_depth_writing_enabled
    cogl_material_get_depth_writing_enabled
    cogl_material_set_depth_range
    cogl_material_get_depth_range

Once a CoglDepthState structure is setup it can be set on a pipeline
using cogl_pipeline_set_depth_state().
2011-05-16 18:36:44 +01:00
Neil Roberts
eb109e6cc0 cogl-primitive: Fix some broken changes for removal of NULL terminator
Commit 3c1e83c7 changed uses of arrays of CoglAttributes to take a
length instead of being NULL terminated. In cogl_primitive_new it was
still adding the NULL terminator to the array it passes to
cogl_primitive_new_with_attributes but then it was also including this
terminator in the count so it would just segfault when it tries to ref
the NULL pointer. Also _cogl_primitive_new_with_attributes_unref was
still trying to detect the NULL terminator so it would also crash.
2011-05-16 18:34:22 +01:00
Robert Bragg
f23a387359 pango: ensure g-ir-compiler can find Cogl-1.0.gir
This uses INTROSPECTION_COMPILER_ARGS to pass
--includedir=$(top_builddir)/cogl so when building the CoglPango typelib
the compiler can find the required Cogl-1.0.gir file.
2011-05-16 17:33:17 +01:00
Robert Bragg
47da69cc3e doc: fix the name of the cogl_quaternion_equal args 2011-05-16 17:08:30 +01:00
Neil Roberts
a466dc272b Don't include cogl-pango.h when scanning introspection data
cogl/cogl-pango.h can't be included unless the include directory for
Pango is given in the compiler flags. In an application, it is
expected that if they are using this header then they would pull in
cogl-pango-1.0.pc which would provide this. However when building Cogl
itself we might be building without Pango support so the Makefile
can't rely on PANGO_CFLAGS. This was breaking building the
introspection data because cogl-pango.h was listed as one of the files
to scan but it can't be included.
2011-05-16 15:41:25 +01:00
Robert Bragg
3c1e83c7f5 Don't pass around NULL terminated CoglAttribute arrays
For the first iteration of the CoglAttribute API several of the new
functions accepted a pointer to a NULL terminated list of CoglAttribute
pointers - probably as a way to reduce the number of arguments required.
This style isn't consistent with existing Cogl APIs though and so we now
explicitly pass n_attributes arguments and don't require the NULL
termination.
2011-05-16 14:32:37 +01:00
Robert Bragg
bf7653ac93 Rename CoglIndexArray to CoglIndexBuffer
This is part of a broader cleanup of some of the experimental Cogl API.
One of the reasons for this particular rename is to switch away from
using the term "Array" which implies a regular, indexable layout which
isn't the case. We also want to strongly imply a relationship between
CoglBuffers and CoglIndexBuffers and be consistent with the
CoglAttributeBuffer and CoglPixelBuffer APIs.
2011-05-16 14:31:31 +01:00
Robert Bragg
c328e0608f Rename CoglPixelArray to CoglPixelBuffer
This is part of a broader cleanup of some of the experimental Cogl API.
One of the reasons for this particular rename is to switch away from
using the term "Array" which implies a regular, indexable layout which
isn't the case. We also want to strongly imply a relationship between
CoglBuffers and CoglPixelBuffers and be consistent with the
CoglAttributeBuffer and CoglIndexBuffer APIs.
2011-05-16 14:31:31 +01:00
Robert Bragg
ce7c06dc03 Rename CoglVertexArray to CoglAttributeBuffer
This is part of a broader cleanup of some of the experimental Cogl API.
One of the reasons for this particular rename is to switch away from
using the term "Array" which implies a regular, indexable layout which
isn't the case. We also want to have a strongly implied relationship
between CoglAttributes and CoglAttributeBuffers.
2011-05-16 14:31:31 +01:00
Robert Bragg
2da24ab863 Add compile time checks for size of public structs
To help catch accidental changes to the size of public structs that can
be allocated on the stack this patch adds compile time checks that our
struct sizes haven't changed.
2011-05-16 14:12:49 +01:00
Robert Bragg
df1915d957 math: Adds an experimental euler API
This adds an experimental CoglEuler data type and the following new
functions:

    cogl_euler_init
    cogl_euler_init_from_matrix
    cogl_euler_init_from_quaternion
    cogl_euler_equal
    cogl_euler_copy
    cogl_euler_free
    cogl_quaternion_init_from_euler

Since this is experimental API you need to define
COGL_ENABLE_EXPERIMENTAL_API before including cogl.h
2011-05-16 14:12:42 +01:00
Robert Bragg
d1434d1c33 math: Adds an experimental quaternion API
This adds an experimental quaternion utility API. It's not yet fully
documented but it's complete enough that people can start to experiment
with using it. It adds the following functions:

    cogl_quaternion_init_identity
    cogl_quaternion_init
    cogl_quaternion_init_from_angle_vector
    cogl_quaternion_init_from_array
    cogl_quaternion_init_from_x_rotation
    cogl_quaternion_init_from_y_rotation
    cogl_quaternion_init_from_z_rotation
    cogl_quaternion_equal
    cogl_quaternion_copy
    cogl_quaternion_free
    cogl_quaternion_get_rotation_angle
    cogl_quaternion_get_rotation_axis
    cogl_quaternion_normalize
    cogl_quaternion_dot_product
    cogl_quaternion_invert
    cogl_quaternion_multiply
    cogl_quaternion_pow
    cogl_quaternion_slerp
    cogl_quaternion_nlerp
    cogl_quaternion_squad
    cogl_get_static_identity_quaternion
    cogl_get_static_zero_quaternion

Since it's experimental API you'll need to define
COGL_ENABLE_EXPERIMENTAL_API before including cogl.h.
2011-05-16 14:11:47 +01:00
Robert Bragg
b316241612 deprecate #include <cogl/cogl-pango.h>
cogl-pango is conceptually a separate library so it doesn't seem
appropriate to bundle the headers with all the other cogl headers. Also
in-tree the headers live in a cogl-pango directory so if we want
examples that can include cogl-pango consistently when built in or out
of tree using the convention #include <cogl-pango/cogl-pango.h> makes
that easy.

This adds a compatibility cogl/cogl-pango.h header that's will redirect
to cogl-pango/cogl-pango.h with a warning, or result in an error if
COGL_ENABLE_EXPERIMENTAL_2_0_API is defined.
2011-05-16 13:28:17 +01:00
Damien Lespiau
a789107860 build: Only allow GLX when finding the x11 pc file
You can refine earlier the ALLOW_GLX variable when enabling OpenGL builds:
No x11.pc? no GLX!
2011-05-12 13:00:34 +01:00
Damien Lespiau
0da07b4e3d build: Fix gtkdocize as it needs to parse the GTK_DOC_CHECK line 2011-05-12 12:59:22 +01:00
Damien Lespiau
5ad1869a3d gitignore: Ignore *.exe files 2011-05-12 11:45:33 +01:00
Damien Lespiau
dc5d3785f6 build: Allow to compile a git checkout without gtk-doc
Gtk-doc can be hard to install on Windows. This patch enables people wanting to
hack on Cogl itself from a Windows system to do so without the hassle to get
gtk-doc installed first.
2011-05-12 11:45:25 +01:00
Robert Bragg
1127ab61a1 don't add -Wshadow to MAINTAINER_CFLAGS
The semantics of shadowing global variables is well defined and it gets
quite annoying to avoid them completely since there are too many
standard APIs with very poor namespacing.
2011-05-11 16:51:10 +01:00
Robert Bragg
89e46a472f framebuffer: check we have a draw/read_buffer before freeing
When freeing a framebuffer stack it's possible to have entries with NULL
draw or read buffers so we should check that before calling
cogl_onscreen/offscreen_free. This fixes a crash with the wayland
backend when running conformance tests such as cogl-test-object which
never push a framebuffer.
2011-05-11 16:46:56 +01:00
Robert Bragg
2282455f27 wayland: Allow setting foreign display/compositor
To support toolkits targeting wayland and using Cogl we allow toolkits
to be responsible for connecting to a wayland display and asking Cogl to
use the toolkit owned display and compositor object. Note: eventually
the plan is that wayland will allow retrospective querying of objects so
we won't need the foreign compositor API when Cogl can simply query it
from the foreign display.
2011-05-11 16:46:52 +01:00
Robert Bragg
653d59af04 Explicitly set EGL_PLATFORM=wayland for wayland winsys
The EGL API doesn't provide for a way to explicitly select a platform
when the driver can support multiple. Mesa allows selection using an
EGL_PLATFORM environment variable though so we set that to "wayland"
when we know that's what we want.
2011-05-11 16:44:08 +01:00
Robert Bragg
a54aa40dbe don't call cogl_set_default_context in hello.c
Actually calling cogl_set_default_context isn't required because
cogl_context_new implicitly sets the new context to be the default
context. Since we want to eventually get rid of the concept of a default
context we'd rather not pollute the example with the concept.
2011-05-11 16:42:00 +01:00
Neil Roberts
442d4586b7 win32: Use the right macro name for COGL_HAS_WIN32_SUPPORT
Some places were using COGL_HAS_WIN32 but the only macro defined is
COGL_HAS_WIN32_SUPPORT. The similar macros such as COGL_HAS_XLIB are
only defined for compatibility with existing code but COGL_HAS_WIN32
was never defined so there's no need to support it.

One of the places was including the non-existant cogl-win32.h. This
has been removed because the file only temporarily existed during
development of the backend.
2011-05-11 15:20:59 +01:00
Neil Roberts
a075f4498b cogl-pipeline-fragend-arbfp: Fix the comparison for dot3 arguments
There was a typo in fragend_arbfp_args_equal so that it wasn't
comparing the constants correctly.

Thomas Wood found this bug with static analysis.
2011-05-11 13:50:32 +01:00
Neil Roberts
cdfad9cdbe cogl-vertex-buffer: Fix the size of the array of attribute pointers
In update_primitive_attributes it tries to fill in an array of
pointers with a NULL terminator. However it was only allocating enough
space for a pointer for each of the attributes plus one byte instead
of plus enough bytes for another pointer.

Thomas Wood found this bug with static analysis.
2011-05-11 13:43:02 +01:00
Neil Roberts
463603f1a0 cogl-winsys: Fix freeing a CoglOnscreen
All of the winsys backends didn't handle cleaning up the CoglOnscreen
properly so that they would assert in cogl_onscreen_free because the
winsys pointer is never freed. They also didn't cope if deinit is
called before init (which will be the case if an onscreen is created
and freed without being allocated).
2011-05-10 20:23:39 +01:00
Neil Roberts
6654533e40 cogl-winsys-wgl: Plug leak on error from SetPixelFormat
When SetPixelFormat fails, the DC would get released but none of the
other resources would be freed. This patch makes it call
_cogl_winsys_onscreen_deinit on failure to clean up all of the
resources. The patch looks big because it moves the onscreen_deinit
and onscreen_bind functions.
2011-05-10 19:53:00 +01:00
Neil Roberts
6788c80342 Add a WGL winsys
This adds a full winsys to handle WGL and Win32.
2011-05-10 17:58:41 +01:00