Commit Graph

299 Commits

Author SHA1 Message Date
Sasha Szpakowski 42812ad521 Add texture views. Fixes #2022.
Add love.graphics.newTextureView(basetexture, viewsettings). Requires GLSL4 support.
Add 'viewformats' boolean setting to texture setting tables.
Add Texture:hasViewFormats.

The viewsettings table has the following fields:
  format = nil, -- set this to a pixel format to override the base format. It must have the same number of bytes per pixel as the original, and the 'viewformats' setting on the original texture must be true for this to work. Cannot be used for compressed or depth/stencil textures.
  type = nil, -- set this to a texture type to override the base texture type. 2d base textures can make [2d, array] views. [array, cube] base textures can make [2d, array, cube] views.
  mipmapstart = nil, -- set to a number to use a less detailed mipmap level as a base.
  mipmapcount = nil, -- set to a number to override the number of mipmaps in the texture view.
  layerstart = nil, -- set to a number to use a specific layer or cube face as a base.
  layers = nil, -- set to a number to override the number of layers in an array texture view.
2024-02-24 15:45:43 -04:00
Sasha Szpakowski 1e97e09b28 Rework internal module registration to happen in constructors. 2024-02-24 15:21:38 -04:00
Sasha Szpakowski 64a30f177f Merge branch 'main' into 12.0-development 2024-02-10 12:24:48 -04:00
Sasha Szpakowski 94d5864144 update year for copyright notice 2024-02-10 12:13:22 -04:00
Sasha Szpakowski 3e8345280f Move default texel and shader storage buffers to high level code. 2024-01-08 22:13:47 -04:00
Sasha Szpakowski aaab9791d5 Improve backbuffer depth buffer.
- Setting the depth buffer for the backbuffer is now done as a boolean instead of a bit depth integer, in love.conf or love.window.setMode.
- Error if depth writes are enabled when the active canvas setup or backbuffer does not have a depth buffer (now it matches stencil behaviour).
- Don't allocate a backbuffer depth-stencil buffer if they're not requested. Metal also determines the format for that buffer based on which combination of depth and stencil is requested. OpenGL still has to allocate the depth-stencil buffer for the backbuffer all the time, because changing it requires the context to be recreated.
2024-01-06 15:21:06 -04:00
Sasha Szpakowski 04462ece30 graphics: clean up some stencil code 2024-01-04 21:35:52 -04:00
Sasha Szpakowski 9b5851e039 Move current love.graphics.setStencilMode functionality to setStencilState.
Add new higher level love.graphics.setStencilMode function.
- Add love.graphics.setStencilMode(mode [, value = 1])
- Add love.graphics.setStencilMode().
- Add mode, value = love.graphics.getStencilMode().

The possible modes are "off" (same as no parameters), "draw", and "test".
The "draw" mode disables color writes and sets the stencil state to ("replace", "always") using the given value.
The "test" mode enables color writes and sets the stencil state to ("keep", "equal") using the given value to compare to.
2024-01-04 16:23:49 -04:00
Sasha Szpakowski dbcdbc47d5 Add debugname field to shader options table. 2023-12-29 16:51:24 +01:00
Sasha Szpakowski 343d192f10 Compressed texture formats have explicit sRGB variants 2023-10-14 15:01:01 -03:00
Sasha Szpakowski 983ea6c0e6 Remove explicit support for systems that don't support rgba8 canvases.
This is just a very small number of really old OpenGL ES 2 drivers.
2023-10-13 21:53:45 -03:00
Sasha Szpakowski 2178b634c8 Add functions for indirect draws and compute dispatches.
Resolves #1879.

- Add an 'indirectdraw' boolean field to the graphics feature support table returned by love.graphics.getSupported. This is almost always supported when compute shaders are supported, except on a few older phones.

- Add an 'indirectarguments' boolean field to the settings table in love.graphics.newBuffer.

- Add love.graphics.dispatchIndirect(shader, argumentsbuffer [, argumentsindex = 1]).
    The compute dispatch's threadgroup width, height, and depth values are fetched from the buffer (as 3 uints) instead of coming from function parameters.

- Add love.graphics.drawIndirect(mesh, argumentsbuffer, argumentsindex, x, y, ....).
    Vertex or index count, instance count, and other related parameters for drawing the mesh are fetched from the buffer (as 4 or 5 uints depending on whether the mesh has an index buffer) instead of coming from function parameters. It's usually a good idea to keep parameters other than the instance count in sync with what the mesh should be using.

- Add love.graphics.drawFromShaderIndirect(drawmode, argumentsbuffer [, argumentsindex = 1] [, maintexture = nil]) and drawFromShaderIndirect(indexbuffer, argumentsbuffer [, argumentsindex] [, maintexture = nil]).
    Vertex or index count, instance count, and other related parameters are fetched from the buffer as 4 or 5 uints, as above.

For the dispatch indirect arguments buffer, it has to have 3 uint32 elements: { uint threadgroupsX, uint threadgroupsY, uint threadgroupsZ }.

For non-indexed draws, the arguments buffer has to have 4 uint32 elements: { uint vertexCount, uint instanceCount, uint baseVertex, uint baseInstance }. Note that baseInstance should always be set to 0 as many drivers don't support non-zero values.

For draws which use an index buffer, the arguments buffer has to have 5 uint32 elements: { uint indexCount, uint instanceCount, uint firstIndex, uint baseVertex, uint baseInstance }. As above, the baseInstance value should always be 0.

A buffer can be created to have an array of those structures, which can be used with the argumentsindex parameter of the Indirect dispatch/draw functions.
2023-02-05 15:55:19 -04:00
Sasha Szpakowski 249d90067e Don't discard the backbuffer depth/stencil in setCanvas.
#1893.
2023-01-11 08:58:12 -04:00
Sasha Szpakowski f6cdbdc868 Merge branch 'main' into 12.0-development 2022-12-31 22:46:34 -04:00
Sasha Szpakowski c823dbca96 Update copyright year for 2023 2022-12-31 22:25:49 -04:00
Alex Szpakowski 3a5c3df02f Add sync and async texture and buffer readback APIs.
- Add imagedata = love.graphics.readbackTexture(texture, [slice, mipmap, x, y, w, h, [dest, destx, desty]]).
- Add readback = love.graphics.readbackTextureAsync(texture, [slice, mipmap, x, y, w, h, [dest, destx, desty]]).
- Add bytedata = love.graphics.readbackBuffer(buffer, [offset, size, [dest, destoffset]]).
- Add readback = ove.graphics.readbackBufferAsync(buffer, [offset, size, [dest, destoffset]]).
- Deprecate Texture:newImageData.

The async variants return a new GraphicsReadback object. It has the following methods:
- isComplete()
- hasError()
- wait()
- getBufferData()
- getImageData()
- update() (called automatically every frame by love, not normally needed).

Support notes:
- readbackBuffer and readbackBufferAsync require buffer copying support.
- readbackTexture with a render target (canvas) is always supported. readbackTexture with a non-render-target requires copy-texture-to-buffer support.
- readbackTextureAsync with a render target requires copy-render-target-to-buffer support. readbackTextureAsync with a non-render-target requires copy-texture-to-buffer support.
2022-05-30 21:53:55 -03:00
Alex Szpakowski ee336e5393 opengl: restructure code for computing format support. 2022-04-23 13:15:58 -03:00
Alex Szpakowski 28a64c2b29 Use uint32 instead of int for some internal bit-flags. 2022-04-23 09:41:29 -03:00
Miku AuahDark 405e33a689 Use int instead of PixelFormatUsageFlags for isPixelFormatSupported. 2022-03-05 13:42:20 +08:00
Alex Szpakowski 6dbb7fa5de Add love.graphics.setStencilMode. Remove old stencil API.
- Add setStencilMode(drawaction, comparemode, value = 0, readmask = 0xFF, writemask = 0xFF).
- Add getStencilMode.
- Remove love.graphics.stencil.
- Remove love.graphics.set/getStencilTest.

Note that the new setStencilMode API does not clear the stencil buffer, and does not turn off color writes (it can still be done manually), unlike love.graphics.stencil.

Fixes #1161.
Fixes #1251.
2022-01-22 23:36:07 -04:00
Alex Szpakowski 87592513a2 metal: fix automatic depth/stencil with setCanvas. 2022-01-22 20:57:06 -04:00
Alex Szpakowski f93d167a47 Merge branch '12.0-development' into metal 2022-01-12 18:23:23 -04:00
Alex Szpakowski ff83ee6a9c Add basic ortho and perspective projection APIs to love.graphics.
- Added love.graphics.setOrthoProjection.
- Added love.graphics.setPerspectiveProjection.
- Added love.graphics.resetProjection.

Note that the projection is reset whenever the canvas changes.
2022-01-08 22:56:21 -04:00
Alex Szpakowski d51e012812 Merge branch '12.0-development' into metal 2022-01-05 21:12:22 -04:00
Alex Szpakowski 7f3538d2ba Merge branch 'main' into 12.0-development 2022-01-05 21:10:27 -04:00
Alex Szpakowski 8e7fd10b6f Update copyright year for 2022 2021-12-31 18:33:40 -04:00
Alex Szpakowski e63025b74f Merge branch '12.0-development' into metal 2021-12-24 15:34:05 -04:00
Alex Szpakowski a551fcd492 Initial support for writing to textures in compute shaders. 2021-08-13 14:43:03 -03:00
Alex Szpakowski cffd485976 Allow rendering to integer textures. 2021-08-12 17:43:33 -03:00
Alex Szpakowski 4caeb27047 Slightly less heavy-handed compute memory barrier implementation.
Also validate whether there are any unbound writable resources when dispatching compute shader work.
2021-08-11 18:41:38 -03:00
bjorn 25fbf1d8ce love.graphics.dispatchThreadgroups; 2021-07-17 19:49:53 -07:00
bjorn 085ba2cb6e Add compute ShaderStage; 2021-07-17 19:46:05 -07:00
Alex Szpakowski 14cda7818f Rename internal enum 2021-04-07 20:43:22 -03:00
Alex Szpakowski 21f5ba86d3 Merge branch 'master' into 12.0-development 2021-04-07 20:33:44 -03:00
Alex Szpakowski f89aabb0bb Update copyright year for 2021 2021-04-04 16:14:45 -03:00
Alex Szpakowski 2d2918a254 Merge branch '12.0-development' into metal 2021-03-26 21:42:08 -03:00
Alex Szpakowski deff795908 Rename some internal buffer enums to better match what they do 2021-01-17 20:59:16 -04:00
Alex Szpakowski 5e77944dc0 refactor texture format support internals 2021-01-16 13:09:01 -04:00
Alex Szpakowski 20a92a4106 Merge branch '12.0-development' into metal 2020-12-22 22:37:17 -04:00
Alex Szpakowski 1f9d98263d Refactor Buffer internals.
Allows buffers created with love.graphics.newBuffer to only allocate VRAM data. Previously they had a copy of their contents in RAM.
Also makes it easier to implement Buffers in other graphics APIs and to implement more types of Buffers in the future.
2020-12-22 19:23:02 -04:00
Alex Szpakowski 7934ce0a66 Handle backbuffer MSAA manually in love.graphics code
Previously love would use SDL APIs to make the system (WGL etc) handle it, which meant the OpenGL context had to be recreated whenever MSAA changed.
2020-10-25 22:24:07 -03:00
Alex Szpakowski 4b9c648c8b metal: work towards shader uniform implementation.
Misc cleanup.
2020-10-24 00:33:02 -03:00
Alex Szpakowski 7a50f32585 Merge branch '12.0-development' into metal 2020-07-29 18:21:19 -03:00
Alex Szpakowski b011487a3e Add new texel buffer type.
GLSL 3+ shaders can read from texel buffers by declaring a uniform samplerBuffer variable and calling texelFetch with a 0-based index, in the shader code. All attributes in a texel buffer's format array must have the same data format (e.g. all 'floatvec4' formats).

Shader:send accepts a texel Buffer for samplerBuffer uniforms.

Added 'texelbuffer' to love.graphics.getSupported (requires GLSL 3+ and desktop OpenGL).
Added 'texelbuffersize' to love.graphics.getSystemLimits. Returns the max number of values in a texel buffer (array length multiplied by the number of attributes declared in the buffer's format array).
2020-07-28 20:44:36 -03:00
Alex Szpakowski 2c4bfab1de Merge branch '12.0-development' into GraphicsBuffer 2020-05-23 20:29:38 -03:00
Alex Szpakowski 2cff535eb1 Move shader parsing code from Lua to C++. 2020-03-03 19:30:22 -04:00
Alex Szpakowski 1ddfcd4cc8 Always use explicitly typed buffers, even in internal code 2020-02-23 16:30:55 -04:00
Alex Szpakowski b1c028a4d3 Merge branch '12.0' into GraphicsBuffer 2020-02-17 16:31:02 -04:00
Alex Szpakowski e001e4336d metal: initial work on setRenderTarget 2020-02-16 09:04:50 -04:00
Alex Szpakowski 742a954655 Merge branch '12.0' into metal 2020-02-15 14:18:35 -04:00