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* shader: begin the shader refactor
make SShader a class and rename it to CShader, move createprogram,
compileshader, logshadererror to CShader.
* shader: move uniform creation to CShader
move uniform creation to CShader, reduces tons of duplicated effort,
however forcing uniform names to be same in all shaders.
* shader: move to array based frag handling
use an array with an enum so it gets easier dealing with multiple
shaders, move creating program to a for loop and array, reduces line of
code a lot.
* shader: use shared ptr for frags
with smart pointers we can now rename useProgram to useShader and return
the shader directly, means only place we have to decide the shader frag
is when calling useShader. easier for future shader splitting to reduce
branching.
* shader: move unneded public members to private
move structs and uniforms to private add a get/set for initialtime
and add a getUniformLocation to make the code tell what its doing,
instead of direct array getting when all we wanted to get was its value,
also limits the setting of uniformLocations to the createProgram as it should
be.
* shader: fix style nits
set first enum member to 0 , remove extra {}
* shader: dont show a failed notif on success
the logic got inverted in the refactor here.
* shader: split CM shader to rgba/rgbx variants
split shader to rgba/rgbx variants, use bool, and reduce branching.
* shader: split up blurprepare CM and non CM
split up blurprepare, remove skipcm, move gain to gain.glsl.
remove ternary operator and reduce branching by using step() and mix()
use vec3 for gain, make brightness a cheap mulitplication with max.
* shader: split up border to CM/noncm variants
splitup border shader to CM/noncm variant, move common used things to
border.glsl , there is room for optimisations here but its a complex
shader im putting it for future PR.
* shader: touchup blurfinish
make brightness a cheap multiplication instead of branching.
mod is redundant, fract in hash already returns a value in [0.0, 1.0]
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conversions (#12879)
* format: add internal formats for drm formats
cross referenced with weston and added internal formats and types for a
lot of missing ones. also added a isFormatYUV helper.
* framebuffer: ensure we use right internalformat
ensure we use the right internal format to avoid internal driver
blitting, also since we only attach the GL_STENCIL_ATTACHMENT we might
just aswell only use the GL_STENCIL_INDEX8 to not confuse drivers that
we want a depth aswell.
* texture: use external on yuv or non linear mods
using external makes us use the gpu's internal detiler.
and this is makes intel a lot happier then having to format convert it
to a linear format internally.
* shaders: add external support to CM frag
add external support to CM frag, and correct ext.frag typo.
* formats: remove duplicates and fix a typo in cm.frag
remove duplicate formats and a typo in cm.frag
* formats: add swizzle logic to all formats
add swizzle logic from weston for all formats and use it in shm texture
paths.
* format: more format changes
use monitor drm format instead of forcing something different.
* shader: remove external from cm.frag
drivers want this resolved at compiletime cant use both
samplerExternalOES and sampler2d and then runtime branch it.
* screencopy: swizzle textures in screencopy
swizzle textures in screencopy, to get the right colors when copying.
* screencopy: restore old behaviour
try restore old behaviour before the gles3 format changes.
glReadPixels had the wrong format, so i went to far trying to mitigate
it. should be like before now.
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