Commit Graph

15 Commits

Author SHA1 Message Date
Alex Szpakowski 46a2e7b85c Happy new year! 🎉 2016-01-01 00:05:06 -04:00
Alex Szpakowski 5460a5b872 Hopefully work around an nvidia graphics driver bug in OS X.
Some nvidia GPUs in OS X fail to render geometry that uses an OpenGL index buffer and client-side vertex arrays. This affected ParticleSystems and love.graphics.print. The code for those has been changed to use a client-side index array instead of an OpenGL index buffer.
2015-12-15 21:50:38 -04:00
Alex Szpakowski e9c75c342e Text:add and Text:addf now return index numbers which can be used as arguments to Text:getWidth and text:getHeight to determine the (pre-transformed) width and height of specific text within the Text object. 2015-11-14 18:51:43 -04:00
Alex Szpakowski 46daf9dd15 Simplified some code by removing an unnecessary/useless optimization. 2015-11-02 03:28:31 -04:00
Alex Szpakowski 389b91cf6f Added per-character color support to love.graphics.print/printf and Text objects. Resolves issue #865.
The aforementioned functions now optionally accept an array instead of a plain string. The array is in the format of: {{r, g, b [, a]}, "first colored text, ", {r, g, b [, a]}, "second colored text", ...}, where the color values specify the color to use in the next section of the text.
2015-11-01 23:17:46 -04:00
Alex Szpakowski 34b8e47831 Removed the internal rounding applied to the x and y parameters of love.graphics.print/printf. Resolves issue #1062. 2015-10-28 01:59:53 -03:00
Alex Szpakowski bfef97c48a Slightly reduced the CPU usage of SpriteBatch:add, Text:add, and love.graphics.draw(ParticleSystem). 2015-08-11 18:01:24 -03:00
Alex Szpakowski d8fd1413d6 Renamed the internal 'Matrix' class to 'Matrix4'. 2015-06-26 19:34:05 -03:00
Alex Szpakowski ed3f419747 Prevent redundant calls to glEnable/DisableVertexAttribArray. This should hopefully fix a performance regression compared to 0.9.2 as well. 2015-06-23 20:55:23 -03:00
Alex Szpakowski 90a3c2b8ba Added Text:setFont. 2015-04-27 04:19:03 -03:00
Alex Szpakowski 2844499ef7 Added the ability to have custom vertex attributes in Meshes (resolves issue #768.)
Added new love.graphics.newMesh variants: newMesh(vertexformat, vertices [, drawmode, meshusage]) and newMesh(vertexformat, numvertices [, drawmode, meshusage]).

Replaced the regular love.graphics.newMesh variants with newMesh(vertices [, drawmode, meshusage]) and newMesh(numvertices [, drawmode, meshusage]). To use an image or canvas with a mesh, use Mesh:setTexture.

vertexformat is a table with the following prototype:
{
  {attributename, datatype, components},
  {attributename, datatype, components},
  ...
}

Where attributename is the name of the vertex attribute (can be the built-in names 'VertexPosition', 'VertexTexCoord', or 'VertexColor', or a custom name for use in a vertex shader), datatype is the type of values used for the attribute ('float' or 'byte'), and components is the number of components in the vertex attribute (between 1 and 4.)

The vertex format is used to determine the layout of the vertices in the mesh, for example the 'regular' newMesh variants use this vertex format:
format = {
  {"VertexPosition", "float", 2},
  {"VertexTexCoord", "float", 2},
  {"VertexColor", "byte", 4},
}

The mesh usage parameter accepts the same constants as the spritebatch usage hint in love.graphics.newSpriteBatch - "dynamic", "static", and "stream".

Mesh:setVertex now sets *all* vertex attributes for a specific vertex in the Mesh.

Added Mesh:setVertexAttribute(vertexindex, attributeindex, attributevalue1, ...), which sets the values for a specific vertex attribute in a specific vertex in the Mesh (resolves issue #784.)

Added Mesh:getVertexFormat and Mesh:flush.

Added Mesh:setAttributeEnabled(attributename, enable) and Mesh:isAttributeEnabled(attributename), to enable or disable the use of a specific attribute when drawing the Mesh.

Added Mesh:attachAttribute(attributename, mesh), which makes the Mesh use a vertex attribute from another mesh when drawing the Mesh. This can be used to separate out vertex attributes which are updated at different rates into different meshes, and to share vertex data between multiple meshes.

Removed Mesh:setVertices, Mesh:getVertices, and Mesh:setVertexColors.
2015-04-08 22:24:17 -03:00
Alex Szpakowski 06ef263537 Added OpenGL debug groups for most graphics operations when love is built in debug mode for iOS. The Xcode frame capture tool uses them to create nice visual groups for OpenGL function calls. 2015-03-16 22:55:58 -03:00
Alex Szpakowski 8277eb9abd Renamed the internal OpenGL buffer class from VertexBuffer to GLBuffer. 2015-03-03 02:21:28 -04:00
Alex Szpakowski 54516a5652 Fixed a case of undefined behavior in love.graphics.printf and Text:set.
--HG--
branch : minor
2015-01-29 21:36:28 -04:00
Alex Szpakowski 970704c2b7 Added Text objects via love.graphics.newText(font [, textstring]). Reworked the internal code of Font objects to use fewer individual textures and less VRAM per object, and to be compatible with OpenGL ES. Slightly improved the performance of love.graphics.print and love.graphics.printf.
Text objects are Drawable objects that represent text on the screen. They decouple text drawing from text parsing and vertex uploading, in a similar manner to SpriteBatches. They also optionally allow efficient batching of text from the same Font in different relative coordinate transformations, without having many draw calls.

Text objects currently have the following methods:

Text:set(textstring) -- replaces any existing text in the object with the new string.
Text:setf(textstring, wraplimit, alignmode) -- replaces any existing text with formatted text using the new string.

Text:getFont() -- gets the Font object used for this Text object.
Text:getWidth() -- gets the width in pixels of the most recently added text in the Text object.
Text:getHeight() -- gets the height in pixels of the most recently added text in the Text object.

Text:add(textstring, x, y, angle, sx, sy, ox, oy, kx, ky) -- adds a new string to the text object using the specified relative coordinate transformation, without replacing existing text. This behaves much like SpriteBatch:add.
Text:addf(textstring, wraplimit, alignmode, x, y, angle, sx, sy, ox, oy, kx, ky) -- adds a new formatted string to the text object using the specified relative coordinate transformation.
Text:clear() -- clears all text from the object.

--HG--
branch : minor
2015-01-23 00:47:28 -04:00