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libs/gl.git
7 years agoUse ARB_direct_state_access to avoid some bind calls
Mikko Rasa [Fri, 28 Oct 2016 17:03:54 +0000 (20:03 +0300)]
Use ARB_direct_state_access to avoid some bind calls

7 years agoRefactor TextureCube face information functions with lookup tables
Mikko Rasa [Fri, 28 Oct 2016 16:34:10 +0000 (19:34 +0300)]
Refactor TextureCube face information functions with lookup tables

7 years agoRefactor Framebuffer::update_attachment for less indentation
Mikko Rasa [Fri, 28 Oct 2016 15:54:39 +0000 (18:54 +0300)]
Refactor Framebuffer::update_attachment for less indentation

7 years agoUse the correct form of glTexParameter to set maximum anisotropy
Mikko Rasa [Fri, 28 Oct 2016 12:31:47 +0000 (15:31 +0300)]
Use the correct form of glTexParameter to set maximum anisotropy

7 years agoRearrange texture bind calls to keep them closer to where they're needed
Mikko Rasa [Fri, 28 Oct 2016 12:21:03 +0000 (15:21 +0300)]
Rearrange texture bind calls to keep them closer to where they're needed

7 years agoPrefer explicit mipmap generation with glGenerateMipmap
Mikko Rasa [Fri, 28 Oct 2016 11:55:23 +0000 (14:55 +0300)]
Prefer explicit mipmap generation with glGenerateMipmap

Implicit generation with the texture parameter was deprecated in
OpenGL 3.0 and removed in OpenGL 3.2.

7 years agoUse ARB_texture_storage for defining texture storage
Mikko Rasa [Thu, 27 Oct 2016 22:52:13 +0000 (01:52 +0300)]
Use ARB_texture_storage for defining texture storage

7 years agoAdd some utility functions for textures
Mikko Rasa [Thu, 27 Oct 2016 22:49:59 +0000 (01:49 +0300)]
Add some utility functions for textures

7 years agoImplement sub_image for TextureCube also
Mikko Rasa [Thu, 27 Oct 2016 22:38:34 +0000 (01:38 +0300)]
Implement sub_image for TextureCube also

I thought it was already implemented but in turned out there was only a
declaration.

7 years agoPrefer sized internal formats when possible
Mikko Rasa [Thu, 27 Oct 2016 22:13:02 +0000 (01:13 +0300)]
Prefer sized internal formats when possible

7 years agoPull in sized depth component formats from ARB_depth_texture
Mikko Rasa [Thu, 27 Oct 2016 22:02:40 +0000 (01:02 +0300)]
Pull in sized depth component formats from ARB_depth_texture

7 years agoImplement 2D array textures
Mikko Rasa [Thu, 27 Oct 2016 08:13:39 +0000 (11:13 +0300)]
Implement 2D array textures

7 years agoCosmetic tweaks
Mikko Rasa [Thu, 27 Oct 2016 08:07:57 +0000 (11:07 +0300)]
Cosmetic tweaks

7 years agoRemove the obsolete storage statement with border
Mikko Rasa [Thu, 27 Oct 2016 08:01:19 +0000 (11:01 +0300)]
Remove the obsolete storage statement with border

7 years agoAdd a datafile statement to use an external image for a texture
Mikko Rasa [Thu, 27 Oct 2016 07:59:34 +0000 (10:59 +0300)]
Add a datafile statement to use an external image for a texture

It can be useful for non-2D textures which can't be loaded directly from
an image file by the resource collection.

7 years agoImplement sub_image for Texture1D
Mikko Rasa [Thu, 27 Oct 2016 07:58:35 +0000 (10:58 +0300)]
Implement sub_image for Texture1D

7 years agoImplement loading functionality for texture classes that were missing it
Mikko Rasa [Thu, 27 Oct 2016 07:48:32 +0000 (10:48 +0300)]
Implement loading functionality for texture classes that were missing it

7 years agoMove srgb handling to storage_pixelformat_from_graphics
Mikko Rasa [Thu, 27 Oct 2016 07:06:16 +0000 (10:06 +0300)]
Move srgb handling to storage_pixelformat_from_graphics

7 years agoUse the core version of primitive restart if possible
Mikko Rasa [Wed, 26 Oct 2016 19:13:38 +0000 (22:13 +0300)]
Use the core version of primitive restart if possible

7 years agoPick the correct source for an extension function if there's multiple
Mikko Rasa [Wed, 26 Oct 2016 19:02:23 +0000 (22:02 +0300)]
Pick the correct source for an extension function if there's multiple

7 years agoUse correct form of GET_PROC_ADDRESS for unpromoted functions
Mikko Rasa [Wed, 26 Oct 2016 18:48:49 +0000 (21:48 +0300)]
Use correct form of GET_PROC_ADDRESS for unpromoted functions

None compares as less than any list.

7 years agoUse ARB_geometry_shader4 rather than the EXT version
Mikko Rasa [Wed, 26 Oct 2016 18:42:38 +0000 (21:42 +0300)]
Use ARB_geometry_shader4 rather than the EXT version

The ARB version is what actually got promoted.

7 years agoBe smarter about detecting backport extensions
Mikko Rasa [Wed, 26 Oct 2016 18:33:21 +0000 (21:33 +0300)]
Be smarter about detecting backport extensions

Sometimes a more recent and completely unrelated extension reuses some
tokens with their core names, causing them to seem like backport
extensions to the script.

7 years agoGive the LIGHTING and CLIPPING flags a LEGACY prefix
Mikko Rasa [Wed, 26 Oct 2016 17:30:15 +0000 (20:30 +0300)]
Give the LIGHTING and CLIPPING flags a LEGACY prefix

7 years agoTrack whether implicit shader data needs to be re-applied
Mikko Rasa [Wed, 26 Oct 2016 17:29:54 +0000 (20:29 +0300)]
Track whether implicit shader data needs to be re-applied

7 years agoAlways print shader and program info logs in debug mode
Mikko Rasa [Wed, 26 Oct 2016 15:16:34 +0000 (18:16 +0300)]
Always print shader and program info logs in debug mode

They may contain useful warnings even if the code was accepted.

7 years agoAdd uniform integer vectors of 2, 3 and 4 elements
Mikko Rasa [Wed, 26 Oct 2016 15:11:06 +0000 (18:11 +0300)]
Add uniform integer vectors of 2, 3 and 4 elements

7 years agoFix Camera::unproject
Mikko Rasa [Mon, 24 Oct 2016 20:55:58 +0000 (23:55 +0300)]
Fix Camera::unproject

It was lacking un-perspective division.  There's also a Vector3 overload
now.

7 years agoCheck glGetString result for being null
Mikko Rasa [Sun, 23 Oct 2016 12:35:24 +0000 (15:35 +0300)]
Check glGetString result for being null

7 years agoAdd a geometry flag to ProgramBuilder
Mikko Rasa [Sun, 16 Oct 2016 11:30:51 +0000 (14:30 +0300)]
Add a geometry flag to ProgramBuilder

It does not generate a geometry shader yet but allows one to be manually
inserted into the program.

7 years agoAdd basic support for geometry shaders
Mikko Rasa [Sun, 16 Oct 2016 08:16:38 +0000 (11:16 +0300)]
Add basic support for geometry shaders

7 years agoPerform culling in eye space and account for Renderer's matrix
Mikko Rasa [Fri, 7 Oct 2016 12:38:09 +0000 (15:38 +0300)]
Perform culling in eye space and account for Renderer's matrix

This allows container renderables to apply intermediate transforms to the
Renderer.  Sometimes it may be inconvenient to propagate every matrix
change down through the hierarchy.

7 years agoAdd a convenience method to get the aspect ratio of View
Mikko Rasa [Fri, 7 Oct 2016 12:37:39 +0000 (15:37 +0300)]
Add a convenience method to get the aspect ratio of View

7 years agoInherit View from sigc::trackable
Mikko Rasa [Fri, 7 Oct 2016 12:37:11 +0000 (15:37 +0300)]
Inherit View from sigc::trackable

It connects to the resize signal of Window.

7 years agoAdd new matrix manipulation functions to VertexBuilder
Mikko Rasa [Tue, 4 Oct 2016 08:34:44 +0000 (11:34 +0300)]
Add new matrix manipulation functions to VertexBuilder

For symmetry with Renderer.

7 years agoAdd some accessors to View
Mikko Rasa [Fri, 16 Sep 2016 23:15:20 +0000 (02:15 +0300)]
Add some accessors to View

7 years agoFix some #defines for Windows
Mikko Rasa [Fri, 16 Sep 2016 22:36:54 +0000 (01:36 +0300)]
Fix some #defines for Windows

7 years agoRequire libsigc++-2.0 since View connects to a signal
Mikko Rasa [Fri, 16 Sep 2016 22:35:56 +0000 (01:35 +0300)]
Require libsigc++-2.0 since View connects to a signal

7 years agoAdd a new View class to tie up some presentation tasks
Mikko Rasa [Thu, 15 Sep 2016 21:09:13 +0000 (00:09 +0300)]
Add a new View class to tie up some presentation tasks

7 years agoDon't attempt to create buffers by default if they are not supported
Mikko Rasa [Thu, 15 Sep 2016 14:49:15 +0000 (17:49 +0300)]
Don't attempt to create buffers by default if they are not supported

Rendering from client memory is a relic from the past but since the
change is rather trivial might as well support it.

7 years agoAlign batches at the index size
Mikko Rasa [Thu, 15 Sep 2016 14:47:27 +0000 (17:47 +0300)]
Align batches at the index size

7 years agoAdd check for more modern AMD video cards
Mikko Rasa [Thu, 15 Sep 2016 14:46:10 +0000 (17:46 +0300)]
Add check for more modern AMD video cards

They no longer have "Radeon" as part of the renderer string, at least
with the amdgpu driver.

7 years agoSupport loading uniform arrays from data files
Mikko Rasa [Mon, 12 Sep 2016 12:08:35 +0000 (15:08 +0300)]
Support loading uniform arrays from data files

7 years agoAdd aliases for uniform statements without the type suffix
Mikko Rasa [Mon, 12 Sep 2016 12:08:10 +0000 (15:08 +0300)]
Add aliases for uniform statements without the type suffix

7 years agoConsistently use the same spelling for diffuse_map and normal_map
Mikko Rasa [Sun, 11 Sep 2016 10:36:04 +0000 (13:36 +0300)]
Consistently use the same spelling for diffuse_map and normal_map

It appears that spelling them as two separate words is more correct than
a compound word.

7 years agoAccess clipping through the extension mechanism
Mikko Rasa [Thu, 1 Sep 2016 13:41:15 +0000 (16:41 +0300)]
Access clipping through the extension mechanism

It's not supported on OpenGL ES.

7 years agoUse RAII to restore the output FBO in Pipeline::render
Mikko Rasa [Fri, 26 Aug 2016 23:29:41 +0000 (02:29 +0300)]
Use RAII to restore the output FBO in Pipeline::render

7 years agoDo not attempt to unwatch a mesh that was already removed
Mikko Rasa [Fri, 26 Aug 2016 23:29:16 +0000 (02:29 +0300)]
Do not attempt to unwatch a mesh that was already removed

7 years agoNotify watchers of a resource being removed from the manager
Mikko Rasa [Fri, 26 Aug 2016 23:27:16 +0000 (02:27 +0300)]
Notify watchers of a resource being removed from the manager

Most likely this is a consequence of it being deleted.

7 years agoFix some uninitialized variables
Mikko Rasa [Fri, 26 Aug 2016 23:26:11 +0000 (02:26 +0300)]
Fix some uninitialized variables

7 years agoAdd integer overload of ProgramData::uniform1_array
Mikko Rasa [Mon, 22 Aug 2016 17:19:41 +0000 (20:19 +0300)]
Add integer overload of ProgramData::uniform1_array

7 years agoSupport custom functions in ProgramBuilder
Mikko Rasa [Mon, 22 Aug 2016 12:33:42 +0000 (15:33 +0300)]
Support custom functions in ProgramBuilder

7 years agoAdd a new API to Pipeline that ties Renderables and passes together
Mikko Rasa [Sun, 14 Aug 2016 20:29:49 +0000 (23:29 +0300)]
Add a new API to Pipeline that ties Renderables and passes together

The old API is now deprecated and will eventually go away.  There are
two reasons for this change:

1. Pipeline was a sort of pseudo-scene, and in many simple use cases it
was not clear which should be used to hold Renderables.  Scenes are
intended as grouping primitives.

2. It was possible to add multiple passes with the same tag and different
rendering state, but there was no way to add a Renderable for only one of
them.  This led to tags doubling as a way to filter different passes at
the level of individual Renderables.  The intended purpose of tags is to
select between different presentations of a Renderable.

7 years agoUnbind Clipping in Renderer::end
Mikko Rasa [Sun, 14 Aug 2016 15:24:33 +0000 (18:24 +0300)]
Unbind Clipping in Renderer::end

7 years agoFully unbind Clipping when legacy mode changes
Mikko Rasa [Sun, 14 Aug 2016 08:45:56 +0000 (11:45 +0300)]
Fully unbind Clipping when legacy mode changes

Failing to do so may leave ClipPlanes bound to ClipUnits, leading to
undesirable behaviour later on.

7 years agoRequire legacy features when binding plain clip planes
Mikko Rasa [Sat, 13 Aug 2016 15:30:27 +0000 (18:30 +0300)]
Require legacy features when binding plain clip planes

7 years agoAdd loader support for clipping in standard shaders
Mikko Rasa [Sat, 13 Aug 2016 15:29:44 +0000 (18:29 +0300)]
Add loader support for clipping in standard shaders

7 years agoBinding fixes for Clipping when mixing legacy and modern mode
Mikko Rasa [Sat, 13 Aug 2016 15:29:14 +0000 (18:29 +0300)]
Binding fixes for Clipping when mixing legacy and modern mode

7 years agoImplement the previously forgotten Clipping::unbind
Mikko Rasa [Sat, 13 Aug 2016 15:28:47 +0000 (18:28 +0300)]
Implement the previously forgotten Clipping::unbind

7 years agoSome fixes to lighting management
Mikko Rasa [Fri, 12 Aug 2016 20:39:33 +0000 (23:39 +0300)]
Some fixes to lighting management

7 years agoSupport user clip planes in generated shaders
Mikko Rasa [Fri, 12 Aug 2016 20:39:06 +0000 (23:39 +0300)]
Support user clip planes in generated shaders

7 years agoHandle clipping in Pipeline and Renderer
Mikko Rasa [Fri, 12 Aug 2016 20:38:50 +0000 (23:38 +0300)]
Handle clipping in Pipeline and Renderer

7 years agoRestore user clip planes in a form compatible with modern OpenGL
Mikko Rasa [Fri, 12 Aug 2016 20:31:47 +0000 (23:31 +0300)]
Restore user clip planes in a form compatible with modern OpenGL

They work much the same as lights, with the ability to add uniforms to a
ProgramData object.

7 years agoSupport rotating the camera frustum
Mikko Rasa [Tue, 2 Aug 2016 22:26:37 +0000 (01:26 +0300)]
Support rotating the camera frustum

The rotation is applied as the very last step of projection, alllowing
screen rotation to be easily implemented in software.

7 years agoDon't do a potentially expensive mesh update if nothing changed
Mikko Rasa [Thu, 28 Jul 2016 10:49:08 +0000 (13:49 +0300)]
Don't do a potentially expensive mesh update if nothing changed

7 years agoFix incorrect multiple inclusion guards
Mikko Rasa [Wed, 27 Jul 2016 15:58:17 +0000 (18:58 +0300)]
Fix incorrect multiple inclusion guards

7 years agoUse cap height instead of ascent for midline alignment
Mikko Rasa [Fri, 22 Jul 2016 19:00:48 +0000 (22:00 +0300)]
Use cap height instead of ascent for midline alignment

7 years agoAdd cap height and x height metrics to Font
Mikko Rasa [Fri, 22 Jul 2016 18:59:57 +0000 (21:59 +0300)]
Add cap height and x height metrics to Font

Since FreeType (and consequently ttf2png) doesn't provide these metrics,
they are estimated by the makefont script.

8 years agoUse UNSIGNED_SHORT for allocating DEPTH_COMPONENT textures
Mikko Rasa [Sat, 23 Jan 2016 02:56:04 +0000 (04:56 +0200)]
Use UNSIGNED_SHORT for allocating DEPTH_COMPONENT textures

OpenGL ES doesn't accept DEPTH_COMPONENT together with BYTE types.

8 years agoAdjust OccludedScene to be more compatible with OpenGL ES
Mikko Rasa [Sun, 10 Jan 2016 16:45:06 +0000 (18:45 +0200)]
Adjust OccludedScene to be more compatible with OpenGL ES

GL_SAMPLES_PASSED is not available in OpenGL ES so use occlusion_query2
for GL_ANY_SAMPLES_PASSED.  In theory it's possible for an implementation
to support occlusion_query but not the 2 variant; I'll deal with that
case if I ever come across such a combination of hardware and drivers.

8 years agoRearrange things in ZSortedScene a bit
Mikko Rasa [Mon, 7 Dec 2015 07:08:05 +0000 (09:08 +0200)]
Rearrange things in ZSortedScene a bit

8 years agoImplement a scene class that performs occlusion culling on renderables
Mikko Rasa [Mon, 7 Dec 2015 07:04:10 +0000 (09:04 +0200)]
Implement a scene class that performs occlusion culling on renderables

8 years agoAdd a class for building icosahedron-based spheres
Mikko Rasa [Sun, 6 Dec 2015 13:55:36 +0000 (15:55 +0200)]
Add a class for building icosahedron-based spheres

It doesn't do texture coordinates because there's no straightforward
mapping between a plane and an icosahedral surface.

8 years agoUse a persistent sorted array in ZSortedScene
Mikko Rasa [Fri, 4 Dec 2015 18:43:07 +0000 (20:43 +0200)]
Use a persistent sorted array in ZSortedScene

Typically the order of renderables changes very little between frames, so
it's possible to use insertion sort which is very fast for almost-sorted
arrays.

8 years agoCalculate depths in ZSortedScene more efficiently
Mikko Rasa [Fri, 4 Dec 2015 18:41:43 +0000 (20:41 +0200)]
Calculate depths in ZSortedScene more efficiently

8 years agoImmediately add renderables to the cache in SimpleScene::add
Mikko Rasa [Fri, 4 Dec 2015 13:59:10 +0000 (15:59 +0200)]
Immediately add renderables to the cache in SimpleScene::add

8 years agoCache renderables in SimpleScene into a vector
Mikko Rasa [Fri, 4 Dec 2015 12:45:31 +0000 (14:45 +0200)]
Cache renderables in SimpleScene into a vector

Set iteration is rather expensive, but I want to retain the O(logn)
performance of add and remove operations.

8 years agoFurther tweak frustum culling to be more efficient
Mikko Rasa [Fri, 4 Dec 2015 12:54:55 +0000 (14:54 +0200)]
Further tweak frustum culling to be more efficient

8 years agoRemove the culler abstraction and move frustum culling to Scene
Mikko Rasa [Fri, 4 Dec 2015 12:09:48 +0000 (14:09 +0200)]
Remove the culler abstraction and move frustum culling to Scene

It turns out that different culling methods (such as occlusion queries)
have different enough requirements that putting them behind a single
abstraction is not feasible.  This also seems to provide a slight
performance boost.

8 years agoMove some common matrix operations to the header so they can be inlined
Mikko Rasa [Fri, 4 Dec 2015 12:07:29 +0000 (14:07 +0200)]
Move some common matrix operations to the header so they can be inlined

8 years agoCache the total data size in ResourceManager
Mikko Rasa [Fri, 4 Dec 2015 11:11:50 +0000 (13:11 +0200)]
Cache the total data size in ResourceManager

Calculating it again every frame turned out to be a fairly large
performance hit in applications with many different resources.

8 years agoMake ResourceManager thread-safe
Mikko Rasa [Fri, 4 Dec 2015 09:36:07 +0000 (11:36 +0200)]
Make ResourceManager thread-safe

Since a big part of the class is loading resources asynchronously, it
makes sense that resources can also be created from another thread.

8 years agoAdd an option to use shared meshes when exporting
Mikko Rasa [Sat, 28 Nov 2015 15:27:02 +0000 (17:27 +0200)]
Add an option to use shared meshes when exporting

8 years agoAdd missing initializer
Mikko Rasa [Sat, 28 Nov 2015 15:26:33 +0000 (17:26 +0200)]
Add missing initializer

8 years agoDecrement size when removing a resource from the loading thread
Mikko Rasa [Fri, 27 Nov 2015 06:30:52 +0000 (08:30 +0200)]
Decrement size when removing a resource from the loading thread

8 years agoAdd geometry builder for sphere
Mikko Rasa [Wed, 25 Nov 2015 11:53:24 +0000 (13:53 +0200)]
Add geometry builder for sphere

8 years agoAllow flagging meshes for winding test in Blender
Mikko Rasa [Mon, 23 Nov 2015 16:18:21 +0000 (18:18 +0200)]
Allow flagging meshes for winding test in Blender

8 years agoMark fog tokens as legacy features
Mikko Rasa [Sun, 22 Nov 2015 09:41:15 +0000 (11:41 +0200)]
Mark fog tokens as legacy features

8 years agoClear manager in destructors of individual resource classes
Mikko Rasa [Wed, 18 Nov 2015 19:04:02 +0000 (21:04 +0200)]
Clear manager in destructors of individual resource classes

If the resource is destroyed while being loaded asynchronously, loading
has to be stopped before the derived class is destroyed.  The Resource
destructor is too late for that.

8 years agoSupport fog in lighting and shaders
Mikko Rasa [Wed, 18 Nov 2015 18:53:43 +0000 (20:53 +0200)]
Support fog in lighting and shaders

8 years agoGive meshes a higher priority when loading
Mikko Rasa [Sat, 14 Nov 2015 22:25:50 +0000 (00:25 +0200)]
Give meshes a higher priority when loading

It's better to load all meshes first so the geometry can be seen.

8 years agoHonor the srgb conversion flag when loading textures asynchronously
Mikko Rasa [Sun, 20 Sep 2015 11:20:48 +0000 (14:20 +0300)]
Honor the srgb conversion flag when loading textures asynchronously

8 years agoPass the resource collection to async loaders
Mikko Rasa [Sun, 20 Sep 2015 11:18:27 +0000 (14:18 +0300)]
Pass the resource collection to async loaders

This way they can access the loading parameters specified in that
collection.

8 years agoAdd option for the range of characters to use from a font
Mikko Rasa [Sun, 20 Sep 2015 11:14:41 +0000 (14:14 +0300)]
Add option for the range of characters to use from a font

8 years agoFix PIL import
Mikko Rasa [Sun, 20 Sep 2015 11:14:29 +0000 (14:14 +0300)]
Fix PIL import

8 years agoThrow a resource_load_error if the source could not be opened
Mikko Rasa [Sat, 5 Sep 2015 20:05:22 +0000 (23:05 +0300)]
Throw a resource_load_error if the source could not be opened

8 years agoAdd a safeguard to resource_used
Mikko Rasa [Sat, 5 Sep 2015 20:04:06 +0000 (23:04 +0300)]
Add a safeguard to resource_used

It's externally accessible and someone might call it with a resource
which is not registered with that manager.

8 years agoMake is_resource_loaded const as it should be
Mikko Rasa [Sat, 5 Sep 2015 20:03:39 +0000 (23:03 +0300)]
Make is_resource_loaded const as it should be

8 years agoMake resource locations externally accessible
Mikko Rasa [Sat, 5 Sep 2015 19:57:58 +0000 (22:57 +0300)]
Make resource locations externally accessible

This makes it easier to load resources e.g. from network on demand.

8 years agoAdd a function to stop a single animation
Mikko Rasa [Sun, 2 Aug 2015 09:58:59 +0000 (12:58 +0300)]
Add a function to stop a single animation