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[client] app: implement new overlay rendering framework

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This change set implements a framework for overlays to be registered
that make use of ImGui. See `overlay/fps` for a simple implementation
example.
This commit is contained in:
Geoffrey McRae
2021-07-22 17:27:30 +10:00
parent 30c4a4786b
commit fdbdf6f167
11 changed files with 385 additions and 124 deletions
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18
client/renderers/EGL/egl.c
View File

@@ -1007,15 +1007,23 @@ bool egl_render(void * opaque, LG_RendererRotate rotate, const bool newFrame)
hasOverlay |= egl_help_render(this->help, this->screenScaleX, this->screenScaleY);
hasOverlay |= egl_damage_render(this->damage, newFrame ? desktopDamage : NULL);
if (app_renderImGui())
struct Rect damage[KVMFR_MAX_DAMAGE_RECTS + 2];
int damageIdx = app_renderOverlay(damage, KVMFR_MAX_DAMAGE_RECTS);
// if no overlay
if (damageIdx == -1)
{
damageIdx = 0;
}
else
{
ImGui_ImplOpenGL3_NewFrame();
ImGui_ImplOpenGL3_RenderDrawData(igGetDrawData());
hasOverlay = true;
}
struct Rect damage[KVMFR_MAX_DAMAGE_RECTS + 2];
int damageIdx = 0;
// if there were too many rects invalidate the entire window
if (damageIdx == 0)
hasOverlay = true;
}
if (!hasOverlay && !this->hadOverlay)
{

2
client/renderers/OpenGL/opengl.c
View File

@@ -686,7 +686,7 @@ bool opengl_render(void * opaque, LG_RendererRotate rotate, const bool newFrame)
break;
}
if (app_renderImGui())
if (app_renderOverlay(NULL, 0) > -1)
{
ImGui_ImplOpenGL2_NewFrame();
ImGui_ImplOpenGL2_RenderDrawData(igGetDrawData());