Mirrored_Repos/LookingGlass
1
0
Fork 0
mirror of https://github.com/gnif/LookingGlass.git synced 2026-07-22 07:12:04 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

[client] egl: cache renderer GL state
Some checks failed
build / client (Debug, map[cc:clang cxx:clang++], libdecor) (push) Has been cancelled
Details
build / client (Debug, map[cc:clang cxx:clang++], xdg-shell) (push) Has been cancelled
Details
build / client (Debug, map[cc:gcc cxx:g++], libdecor) (push) Has been cancelled
Details
build / client (Debug, map[cc:gcc cxx:g++], xdg-shell) (push) Has been cancelled
Details
build / client (Release, map[cc:clang cxx:clang++], libdecor) (push) Has been cancelled
Details
build / client (Release, map[cc:clang cxx:clang++], xdg-shell) (push) Has been cancelled
Details
build / client (Release, map[cc:gcc cxx:g++], libdecor) (push) Has been cancelled
Details
build / client (Release, map[cc:gcc cxx:g++], xdg-shell) (push) Has been cancelled
Details
build / module (push) Has been cancelled
Details
build / host-linux (push) Has been cancelled
Details
build / host-windows-cross (push) Has been cancelled
Details
build / host-windows-native (push) Has been cancelled
Details
build / idd (push) Has been cancelled
Details
build / obs (clang) (push) Has been cancelled
Details
build / obs (gcc) (push) Has been cancelled
Details
build / docs (push) Has been cancelled
Details

Browse Source 
Track context-local GL bindings to avoid redundant program, framebuffer,
buffer, texture, sampler, viewport, blend, and scissor state changes.

Invalidate the cache across context switches, ImGui rendering, and
shared object changes. Preserve CPU-backed texture upload correctness by
explicitly clearing pixel unpack buffer bindings where required.

This reduces hot-path driver overhead without adding waits or GPU
synchronization.
This commit is contained in:
Geoffrey McRae
2026-07-17 22:38:46 +10:00
parent b2c40a80af
commit e5c4fe68dc
17 changed files with 439 additions and 68 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
client/renderers/EGL/desktop_rects.c
View File

@@ -19,6 +19,7 @@
*/
#include "desktop_rects.h"
#include "state.h"
#include "common/debug.h"
#include "common/KVMFR.h"
#include "common/locking.h"
@@ -54,14 +55,13 @@ bool egl_desktopRectsInit(EGL_DesktopRects ** rects_, int maxCount)
memset(rects, 0, sizeof(*rects));
glGenVertexArrays(1, &rects->vao);
glBindVertexArray(rects->vao);
egl_stateBindVertexArray(rects->vao);
glGenBuffers(2, rects->buffers);
glBindBuffer(GL_ARRAY_BUFFER, rects->buffers[0]);
egl_stateBindBuffer(GL_ARRAY_BUFFER, rects->buffers[0]);
glBufferData(GL_ARRAY_BUFFER, maxCount * 8 * sizeof(GLfloat), NULL, GL_STREAM_DRAW);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, NULL);
glBindBuffer(GL_ARRAY_BUFFER, 0);
GLushort indices[maxCount * 6];
for (int i = 0; i < maxCount; ++i)
@@ -77,8 +77,6 @@ bool egl_desktopRectsInit(EGL_DesktopRects ** rects_, int maxCount)
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, rects->buffers[1]);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof indices, indices, GL_STATIC_DRAW);
glBindVertexArray(0);
rects->count = 0;
rects->maxCount = maxCount;
return true;
@@ -92,6 +90,7 @@ void egl_desktopRectsFree(EGL_DesktopRects ** rects_)
glDeleteVertexArrays(1, &rects->vao);
glDeleteBuffers(2, rects->buffers);
egl_stateInvalidateShared();
free(rects->lastVertices);
free(rects);
*rects_ = NULL;
@@ -161,9 +160,8 @@ void egl_desktopRectsUpdate(EGL_DesktopRects * rects, const struct DamageRects *
rects->lastVerticesCount = count;
memcpy(rects->lastVertices, vertices, sizeof(GLfloat) * count);
glBindBuffer(GL_ARRAY_BUFFER, rects->buffers[0]);
egl_stateBindBuffer(GL_ARRAY_BUFFER, rects->buffers[0]);
glBufferSubData(GL_ARRAY_BUFFER, 0, rects->count * 8 * sizeof(GLfloat), vertices);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
static void desktopToGLSpace(double matrix[6], int width, int height, double translateX,
@@ -299,7 +297,6 @@ void egl_desktopRectsRender(EGL_DesktopRects * rects)
if (unlikely(!rects->count))
return;
glBindVertexArray(rects->vao);
egl_stateBindVertexArray(rects->vao);
glDrawElements(GL_TRIANGLES, 6 * rects->count, GL_UNSIGNED_SHORT, NULL);
glBindVertexArray(0);
}