Commit Graph

15 Commits

Author SHA1 Message Date
Emmanuele Bassi
bd3254c0f8 [docs] Various gtk-doc fixes for COGL
Try to keep the gtk-doc errors down to a minimum.
2009-06-10 12:57:36 +01:00
Neil Roberts
67544f38d4 [cogl-vertex-buffer] Add cogl_vertex_buffer_indices_get_for_quads
This function can be used as an efficient way of drawing groups of
quads without using GL_QUADS. It generates a VBO containing the
indices needed to render using pairs of GL_TRIANGLES. The VBO is
globally cached so that it only needs to be uploaded whenever more
indices are requested than ever before.
2009-06-01 14:50:52 +01:00
Emmanuele Bassi
7b75f93db1 [docs] Fixes for the API reference
* Add unused symbols

* Document and sync argument names with their gtk-doc counterpart

* Add missing descriptions
2009-05-28 17:18:13 +01:00
Robert Bragg
be826ed4e7 [cogl vertex buffers] Give indices a CoglHandle so they are shareable
Previously indices were tightly bound to a particular Cogl vertex buffer
but we would like to be able to share indices so now we have
cogl_vertex_buffer_indices_new () which returns a CoglHandle.

In particular we could like to have a shared set of indices for drawing
lists of quads that can be shared between the pango renderer and the
Cogl journal.
2009-05-28 13:27:54 +01:00
Robert Bragg
59bd824404 [vbo indices] tweak add_indices api to return an id and add delete_indices api
Originally cogl_vertex_buffer_add_indices let the user pass in their own unique
ID for the indices; now the Id is generated internally and returned to the
caller.
2009-05-28 02:43:35 +01:00
Robert Bragg
d51faed660 [cogl-vertex-buffer] Seal GL types from the public API
We now have CoglAttributeType and CoglVerticesMode typedefs to replace the
use of GLenum in the public API.
2009-05-28 02:43:35 +01:00
Robert Bragg
6bb6686666 [cogl-vertex-buffers] Support putting index arrays into VBOS
It's now possible to add arrays of indices to a Cogl vertex buffer and
they will be put into an OpenGL vertex buffer object. Since it's quite
common for index arrays to be static it saves the OpenGL driver from
having to validate them repeatedly.

This changes the cogl_vertex_buffer_draw_elements API: It's no longer
possible to provide a pointer to an index array at draw time. So
cogl_vertex_buffer_draw_elements now takes an indices identifier that
should correspond to an idendifier returned when calling
cogl_vertex_buffer_add_indices ()
2009-05-28 02:43:34 +01:00
Robert Bragg
f85377372c [cogl] Updates all file headers and removes lots of trailing white space
Adds missing notices, and ensures all the notices are consistent. The Cogl
blurb also now reads:

 * Cogl
 *
 * An object oriented GL/GLES Abstraction/Utility Layer
2009-05-02 04:12:25 +01:00
Neil Roberts
68ab2c6024 [doc] Fix two small typos in cogl-vertex-buffer
The symbol name for cogl_vertex_buffer_draw_elements was wrong so it
ended up with no documentation. The name for the vertex attribute was
incorrect in cogl_vertex_buffer_add.
2009-03-25 14:53:58 +00:00
Robert Bragg
71d65b629b [cogl-vertex-buffer] fix cogl_vertex_buffer_draw_elements prototype
This function was renamed a while ago in the .c file from
cogl_vertex_buffer_draw_range_elements  but the corresponding .h and
doc/reference/cogl changes weren't made.
2009-03-16 16:19:39 +00:00
Robert Bragg
14e6323554 [cogl-vertex-buffer] Allow querying back the number of vertices a buffer represents
This may be convenient e.g. at draw time if you are simply drawing all vertices
2009-03-16 16:17:02 +00:00
Robert Bragg
075ae9c4a7 [cogl-vertex-buffer] Add a flush of attribute changes in the *_draw() functions
For convenience it is now valid to avoid a seperate call to
cogl_vertex_buffer_submit() and assume that the _draw() calls will do this
for you (though of course if you do this you still need to ensure the
attribute pointers remain valid until your draw call.)
2009-03-16 16:14:17 +00:00
Robert Bragg
b4f9c8204d [docs] Various gtk-doc updates for Cogl
This hides a number of internal structs and enums from the docs, and moves
some functions to more appropriate sections as well as misc description
updates (mostly for the vertex buffer api)
2009-02-09 14:33:14 +00:00
Emmanuele Bassi
0be613109e [docs] Remove sources of warnings in API references 2009-01-21 16:41:18 +00:00
Robert Bragg
e338245827 Renames the mesh api to the "vertex buffer api".
This better reflects the fact that the api manages sets of vertex attributes,
and the attributes really have no implied form. It is only when you use the
attributes to draw that they become mesh like; when you specify how they should
be interpreted, e.g. as triangle lists or fans etc. This rename frees up the
term "mesh", which can later be applied to a concept slightly more fitting.
E.g. at some point it would be nice to have a higher level abstraction that
sits on top of cogl vertex buffers that adds the concept of faces. (Somthing
like Blender's mesh objects.) There have also been some discussions over
particle engines, and these can be defined in terms of emitter faces; so some
other kind of mesh abstraction might be usefull here.
2009-01-20 22:29:35 +00:00