Commit Graph

16 Commits

Author SHA1 Message Date
Tomasz Włostowski bbee30671a gal: pixel alignment hacks, works for Retina display too now.
gal: pixel alignment for Cairo.
gal: pixel alignment for OpenGL

Cleanup of pixel alignment patches

gal/opengl: more pixel alignment patches:
- works on Retina displays now
- pixel alignment for circles
- correct 1-pixel strokes
- fixed unfinished 1-pixel line ends

GAL: Restore antialiasing options in Cairo
GAL: Fix arc drawing

Removes DrawArcSegment, which drew arcs whose edge was optionally
stroked (a feature that we did not use).  Fixes Cairo arc drawing issue
where arcs were not visible in pcbnew.

gal: further cleanup
gal: removed unused shader parameter
2019-02-16 20:03:13 +01:00
Maciej Suminski 5a7604cbb4 More code formatting 2017-01-13 10:36:59 +01:00
Maciej Suminski 67b0a8c990 Fixed type casting in SHADER class 2017-01-11 17:37:10 +01:00
Maciej Suminski da00d64877 OpenGL antialising code clean up & formatting 2017-01-11 16:20:37 +01:00
decimad 2a8dd508c4 Add smaa (subsample morphological antialiasing) 2017-01-11 16:20:37 +01:00
decimad 77f9cd0cb0 remove custom shader header generation build-step in favor of c++11 raw string literals
rework shader loading code to handle an arbitrary amount of to-be-concatenated strings
2017-01-11 16:20:34 +01:00
Maciej Suminski b4ad18a3ea Do not rebuild shaders on each OPENGL_GAL construction. 2016-06-03 15:46:13 +02:00
Maciej Suminski bc305859b2 Mainly case changes. 2013-10-14 20:40:36 +02:00
Maciej Suminski 0ac3e1fbf2 Namespace KiGfx->KIGFX.
template<> -> template <>
Some more reformatting according to uncrustify results.
2013-10-14 16:13:35 +02:00
Maciej Suminski 22045b61ea Converted tabs to spaces. Removed trailing whitespaces. 2013-10-14 13:43:57 +02:00
Maciej Suminski fe6c901a9f Shaders can handle integer parameters (uniforms). 2013-07-03 13:08:43 +02:00
Maciej Sumiński 27a6f8afd6 Shaders are built-in instead of being loaded from external files. 2013-06-30 19:31:16 +02:00
Maciej Sumiński 335bf72060 More debug information in case of failure compilation of shaders. 2013-06-30 15:37:46 +02:00
Maciej Suminski 978b548c64 Small improvements to SHADER class. 2013-06-24 15:40:31 +02:00
Maciej Suminski ad5d10a8ba Display linking errors in debug mode for shaders. Added SHADER::GetAttribute() function for getting shaders attribute location. 2013-06-03 10:54:24 +02:00
Maciej Suminski e262b32198 Introduction of Graphics Abstraction Layer based rendering for pcbnew.
New classes:
    - VIEW - represents view that is seen by user, takes care of layer ordering & visibility and how it is displayed (which location, how much zoomed, etc.)
    - VIEW_ITEM - Base class for every item that can be displayed on VIEW (the biggest change is that now it may be necessary to override ViewBBox & ViewGetLayers method for derived classes).
    - EDA_DRAW_PANEL_GAL - Inherits after EDA_DRAW_PANEL, displays VIEW output, right now it is not editable (in opposite to usual EDA_DRAW_PANEL).
    - GAL/OPENGL_GAL/CAIRO_GAL - Base Graphics Abstraction Layer class + two different flavours (Cairo is not fully supported yet), that offers methods to draw primitives using different libraries.
    - WX_VIEW_CONTROLS - Controller for VIEW, handles user events, allows zooming, panning, etc.
    - PAINTER/PCB_PAINTER - Classes that uses GAL interface to draw items (as you may have already guessed - PCB_PAINTER is a class for drawing PCB specific object, PAINTER is an abstract class). Its methods are invoked by VIEW, when an item has to be drawn. To display a new type of item - you need to implement draw(ITEM_TYPE*) method that draws it using GAL methods.
    - STROKE_FONT - Implements stroke font drawing using GAL methods.
                          
Most important changes to Kicad original code:
    * EDA_ITEM now inherits from VIEW_ITEM, which is a base class for all drawable objects.
    * EDA_DRAW_FRAME contains both usual EDA_DRAW_PANEL and new EDA_DRAW_PANEL_GAL, that can be switched anytime.
    * There are some new layers for displaying multilayer pads, vias & pads holes (these are not shown yet on the right sidebar in pcbnew)
    * Display order of layers is different than in previous versions (if you are curious - you may check m_galLayerOrder@pcbnew/basepcbframe.cpp). Preserving usual order would result in not very natural display, such as showing silkscreen texts on the bottom.
    * Introduced new hotkey (Alt+F12) and new menu option (View->Switch canvas) for switching canvas during runtime.
    * Some of classes (mostly derived from BOARD_ITEM) now includes ViewBBox & ViewGetLayers methods.
    * Removed tools/class_painter.h, as now it is extended and included in source code.
                         
Build changes:
    * GAL-based rendering option is turned on by a new compilation CMake option KICAD_GAL.
    * When compiling with CMake option KICAD_GAL=ON, GLEW and Cairo libraries are required.
    * GAL-related code is compiled into a static library (common/libgal).
    * Build with KICAD_GAL=OFF should not need any new libraries and should come out as a standard version of Kicad
                            
Currently most of items in pcbnew can be displayed using OpenGL (to be done are DIMENSIONS and MARKERS).
More details about GAL can be found in: http://www.ohwr.org/attachments/1884/view-spec.pdf
2013-04-02 08:54:03 +02:00