Commit Graph

32 Commits

Author SHA1 Message Date
Bart van Strien 22f2175bec Add initial video playback support for Ogg Theora videos (resolves issue #66.)
The basic APIs are:

video = love.graphics.newVideo("myvideo.ogv")

love.graphics.draw(video, ...) -- Video objects are Drawables.

video:play(), video:pause()

video:getDuration(), video:tell(), video:rewind(), video:seek(seconds)

video:getSource()

video:getWidth(), video:getHeight(), video:setFilter(min, mag)

More advanced APIs include video:setSource(source), video:getStream(), and videostream:setSync.

To use a custom pixel shader when drawing a Video, call the new TexelVideo(texcoords) function instead of Texel(texture, texcoords) in order to get the pixel colors of a video frame.
2015-12-08 22:41:19 -04:00
Alex Szpakowski 1e8786879b Re-added the built-in NormalMatrix uniform 3x3 matrix variable to shaders. 2015-06-26 21:51:22 -03:00
Alex Szpakowski d8fd1413d6 Renamed the internal 'Matrix' class to 'Matrix4'. 2015-06-26 19:34:05 -03:00
Alex Szpakowski 4c571e8fd7 Prevent redundant shader uniform uploads for built-in uniforms when OpenGL ES 2 is used.
As a result, the graphics primitive drawing functions (e.g. love.graphics.rectangle) are now more efficient on mobile devices.
2015-06-24 22:04:19 -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 a36dbc3d49 Only update the shader point size in OpenGL ES 2 when it's been modified, rather than before every draw. 2015-03-17 17:24:45 -03:00
Alex Szpakowski 3fea174008 Cleaned up some shader code.
--HG--
branch : minor
2015-03-02 15:18:12 -04:00
Alex Szpakowski 3830a0969c Moved the Texture and Quad Lua wrapper files out of the opengl graphics implementation folder.
--HG--
branch : minor
2015-03-01 03:51:44 -04:00
Alex Szpakowski 5df56d041a Added GLSL ES 1.00 (OpenGL ES 2) shader support.
--HG--
branch : minor
2015-01-20 22:31:54 -04:00
Alex Szpakowski a7e4148869 Merged default into minor
--HG--
branch : minor
2015-01-16 15:47:26 -04:00
Alex Szpakowski c7b45b3505 Updated copyright for the new year 2014-12-31 19:32:43 -04:00
Alex Szpakowski 34688e929e Merged default into minor
--HG--
branch : minor
2014-09-28 15:56:04 -03:00
Alex Szpakowski b70f72acb3 Fixed a couple potential memory leaks if love.graphics.newShader causes an error, and cleaned up some shader-related code. 2014-09-27 02:26:58 -03:00
Alex Szpakowski 3a51f0ad08 Changed the love.graphics internal code to always use a default shader when none is set externally, and replaced the deprecated OpenGL vertex attribute code with the equivalent generic vertex attribute functions.
This will simplify the code and make it more maintainable when OpenGL ES 2+ support is added, compared to using the deprecated VA functions on desktop GL and the generic VA functions on GLES.

--HG--
branch : minor
2014-08-26 03:24:42 -03:00
Alex Szpakowski 5428a5d75f Backout changeset b3928e24add23da69dcd90c34985cd6a05454be0 2014-05-03 22:07:32 -03:00
Alex Szpakowski 4bc96f1bf6 Internally compose and pass an array of shader source codes to OpenGL, instead of relying on #line to make sure the line number is correct for shader error messages (resolves issue #882) 2014-05-03 21:43:20 -03:00
Alex Szpakowski f30a0d72f0 Added Shader:getExternVariable(name).
Returns the base type name ('float', 'image', etc.), the number of components (2 for a vec2), and number of array elements (1 for a non-array variable) for the extern variable with the specified name in the shader.

Returns nil if the variable either doesn't exist or was optimized out by the driver's shader compiler.
2014-04-25 20:32:42 -03:00
Alex Szpakowski c5c788e976 Added a built-in variable readable in shaders: ‘love_ScreenSize’. Its x and y components contain the width and height of the current viewport. Resolves issue #841. 2014-01-27 02:58:34 -04:00
Alex Szpakowski 7556fde5e6 Added antialiasing (MSAA) support to Canvases via a new optional parameter. Added Canvas:getFSAA. 2014-01-27 01:31:41 -04:00
Alex Szpakowski 73f1ce0d40 Added instancing support to Meshes via Mesh:setInstanceCount. Added a new built-in variable to vertex shaders: int love_InstanceID.
love.graphics.draw(mesh) will draw the mesh instancecount times, using hardware instancing when available. The only way to draw individual instances differently from each other is to use the love_InstanceID variable in a vertex shader.

Added love.graphics.isSupported(“instancing”). Hardware instancing is supported if true, otherwise a (slower) pseudo-instancing fallback is used internally when drawing instanced meshes.
2014-01-21 06:01:50 -04:00
Alex Szpakowski 3120a0e650 Goodbye 2013, hello 2014! 2014-01-03 17:28:58 -04:00
Alex Szpakowski aa69a695d3 Canvases can now be used in SpriteBatches, ParticleSystems, and Meshes (resolves issue #782).
Canvases and Images are now subclasses of the new Texture class.
Added setTexture and getTexture methods for Meshes, ParticleSystems, and SpriteBatches (the old set/getImage methods are deprecated but not removed.)
Canvas texture coordinates are no longer flipped.
2014-01-03 17:07:12 -04:00
vrld 3b04eeeec8 Fix #756: Sending an Image to a shader does not retain it
Each shader contains a map of uniform name -> bound retainable Object. After
setting the uniform, sendImage() and sendCanvas() release() the Object with
the requested name (if present) and record the new Image/Canvas.

Related bugfix: Shader::attach() calls retain()/release() on the shader.
2013-11-03 18:27:36 +01:00
Alex Szpakowski b44c083894 Added Shader:sendInt 2013-04-27 19:26:32 -07:00
Alex Szpakowski 0130b726de Improved error messages when sending bad values to a shader (also issue #587) 2013-04-24 23:19:37 -07:00
Alex Szpakowski 1c720afaf8 Cleaned up some shader code internals 2013-04-06 14:14:11 -03:00
Alex Szpakowski cfe6014b68 Improved shader:getWarnings() to return shader compiler warnings as well as shader program linker and usage warnings 2013-04-06 14:02:24 -03:00
Alex Szpakowski 07ba81f060 Renamed all cases of "fragment shader" to "pixel shader" 2013-03-17 18:11:41 -03:00
Alex Szpakowski 96161c66f6 Updated copyright text for the new year 2013-02-05 05:32:49 -04:00
Alex Szpakowski 02d2a872ab Improved shader member variable names, fixed up XCode project file 2013-01-29 04:34:36 -04:00
Alex Szpakowski 5cae5ea37e Removed code for tesselation and geometry shader detection 2013-01-24 18:26:40 -04:00
Alexander Szpakowski e24d721381 Renamed all instances of 'ShaderEffect' (previously 'PixelEffect') to 'Shader'. 2013-01-16 07:21:41 -04:00