This doesn’t actually improve performance at all in most cases, but it does remove some OpenGL-specific code from the Font files, and reduces the amount of duplicated rendering code. This makes it slightly easier to add support for Core Profile OpenGL 3.
--HG--
branch : minor
It now defers uploading the uniforms to the program object until the shader becomes active again, instead of activating the shader program and deactivating it each time Shader:send is called.
--HG--
branch : minor
The above are batched together into a single draw call when called without other drawing calls in between, as long as the following criteria are met:
- The texture is the same.
- The primitive type is the same (points cannot be batched with non-points).
- The love.graphics state is the same (aside from the current color - i.e. setColor - and the transform state).
- The active shader’s uniform values are the same.
You can examine the ‘drawcalls’ field of love.graphics.getStats() to help determine if your code is allowing for optimum batching.
--HG--
branch : minor
Instead of a global type enum and bitfield, all types now have their own
love::Type static member. This means they automatically assign their ids, build
their bitsets, etc. As a bonus, it simplifies wrapper code since most functions
already know which type they're pushing to or getting from lua, so they can
directly get the static member (if it's called 'type').
--HG--
branch : minor
- Added Mesh:attachAttribute(name, mesh, nameInMesh) which retargets the attribute name in the specified Mesh (3rd argument) to a new name for this mesh (1st argument).
- Added Mesh:attachAttribute(name) which detaches any attached attributes from other meshes for that attribute name.
--HG--
branch : minor
love.graphics.getSupported():
- Added “fullnpot” field, is true everywhere except on some older mobile devices. If false, mipmapping and wrap modes other than “clamp” can’t be used on non-power-of-two sized textures.
- Added “pixelshaderhighp” field, is true everywhere except some older mobile devices. If false, “highp” precision can’t be used in pixel shaders and love will default to “mediump” instead.
love.graphics.getSystemLimits():
- Added “anisotropy” field, gets the maximum amount of anisotropy you can specify in Texture:setFilter. love will clamp anisotropy arguments greater than this value.
--HG--
branch : minor
- Added love.math.newTransform.
- Added love.graphics.applyTransform and love.graphics.replaceTransform.
- love.graphics.draw/print/printf, Text:add/addf, and SpriteBatch:add can accept a Transform argument.
- love.graphics.push can accept an optional Transform as a second argument, which will apply the Transform after pushing the matrix stack,
- Shader:send can accept Transform objects when sending to a mat4 uniform variable.
--HG--
branch : minor
Also allow arrays of images/samplers in shaders, although driver support is iffy and you have to index into the array using a compile-time constant (which might exclude loop indexing).
--HG--
branch : minor
- Removed love.graphics.set/getCanvas, Canvas:renderTo, Canvas:newImageData, love.graphics.clear, love.graphics.discard, and love.graphics.newScreenshot.
- Added love.graphics.beginPass and love.graphics.endPass. All rendering must happen within a pass. love.draw is now called while a render pass to the main screen is active.
- Added love.graphics.renderPass, which is a wrapper for begin/endPass which calls the supplied function argument in between a begin/end. This is similar to the old Canvas:renderTo.
- Added love.graphics.isPassActive, getPassCanvases, getPassWidth, getPassHeight, and getPassDimensions.
- Added love.graphics.captureScreenshot.
- Added a new love.run callback love.drawpasses, which is called after love.update and before love.draw. It is the place to render to Canvases using beginPass or renderPass, since love.draw now always draws to the main screen.
- Renamed the ‘canvasswitches’ field in the table returned by love.graphics.getStats to ‘renderpasses’.
love.graphics.beginPass has the following variants (and renderPass mirrors them with an additional function argument at the end):
- love.graphics.beginPass(), begins rendering to the main screen without clearing it.
- love.graphics.beginPass(r, g, b [, a]), begins rendering to the main screen and clears the screen to the specified color.
- love.graphics.beginPass(canvas [, willstencil]), begins rendering to the specified Canvas without clearing it. love.graphics.stencil can only be used within the Canvas if ‘willstencil’ is true.
- love.graphics.beginPass(canvas, r, g, b [, a] [, willstencil]), beings rendering to the specified Canvas and clears it to the specified color. love.graphics.stencil can only be used within the Canvas if ‘willstencil’ is true.
- love.graphics.beginPass(info), where ‘info’ is a table in the following form:
{
{canvas [, r, g, b, a]}, — A canvas and an optional color to clear the Canvas to when the pass begins.
{canvas2, [r, g, b, a]}, — Additional Canvases and optional clear colors for multi-canvas rendering.
…,
stencil = false, — Optional boolean field to specify whether love.graphics.stencil is allowed within this pass. False by default.
}
The pass info table can be created once up-front and used for multiple beginPass/renderPass calls.
love.graphics.endPass can take an optional callback function argument, which causes endPass to capture the contents of the Canvas drawn to in the render pass to a new ImageData and passes it to the supplied function (this replaces Canvas:newImageData). This does not work on the main screen.
love.graphics.captureScreenshot replaces love.graphics.newScreenshot. It takes a callback function argument which causes love.graphics.present to capture the contents of the screen to a new ImageData and passes it to the supplied function. captureScreenshot can only be called before drawing to the main screen begins in the current frame (e.g. in love.keypressed, love.update, etc.)
--HG--
branch : minor
Since the type is passed to va_start, and apparently that's undefined behaviour if it's a reference.
<Textmode> the best kind of behavior
--HG--
branch : dynamiccore2
Alex Szpakowski
Bart van Strien
Nathan Korth