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path: root/src/render/Shader.cpp
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* opengl: optimize shaders and reduce unneeded drawcalls (#10364)Tom Englund2025-05-111-1/+35
| | | | | | | | | | | | | | | | | | | | | | | * opengl: remove unnecessery glflush calls glflushing forces the driver to break batching and issue commands prematurely and prevents optimisations like command reordering and merging. many glFunctions already internally glflushes and eglsync creation still has a glflush at end render. so lets reduce the overhead of these calls. * opengl: reduce glUseProgram calls apitrace shows cases where the same program gets called multiple times, add a helper function that keeps track of current program and only call it once on same program. reduces slight overhead. * opengl: use more efficient vertex array object use a more modern vertex array object approach with the shaders, makes it a onetime setup on shader creation instead of once per drawcall, also should make the driver not have to revalidate the vertex format on each call.
* refactor: cshader class to sshader struct (#10324)davc0n2025-05-081-2/+2
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* renderer/opengl: Extract shaders from source (#9600)UjinT342025-03-291-12/+0
| | | | | --------- Co-authored-by: Mihai Fufezan <mihai@fufexan.net>
* renderer: various fixes towards improving gpu calls robustness (#9188)Tom Englund2025-02-081-1/+4
| | | | | | | | | | | | | | ensure framebuffer textures are detached and deleted, avoid leaving framebuffers bound when not needed * render: avoid calling glDeleteProgram on no program its safe to do so but it adds a bunch of unnecessery lines in apitrace when tracing. if guard it and return early. * opengl: ensure texture and buffers are unbound ensure bound buffers are unbound after use, also detach textures from framebuffer before deleting it otherwise it will become dangling and essentially leak.
* shader: remove useless commentvaxerski2023-06-291-1/+0
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* fix shader destroy id unsetvaxerski2022-12-031-2/+2
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* Added screen shadersvaxerski2022-12-011-0/+6
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* remove redundant check in CShadervaxerski2022-11-011-3/+1
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* simplify a bit of codevaxerski2022-08-261-1/+1
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* destroy program in shader destructorvaxerski2022-08-111-0/+7
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* added CPU uniform location lookup optimizationvaxerski2022-06-301-0/+13
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* progressvaxerski2022-04-041-0/+0