From bb01cc1b9562b802ae778dfe082b0dac709e1b00 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Sun, 4 Aug 2019 09:58:34 +0200
Subject: Add swap interval hint
---
pugl/detail/implementation.c | 1 +
pugl/detail/win_gl.c | 2 +-
pugl/pugl.h | 1 +
test/pugl_test.c | 2 ++
4 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/pugl/detail/implementation.c b/pugl/detail/implementation.c
index 53af30b..1b7d4a4 100644
--- a/pugl/detail/implementation.c
+++ b/pugl/detail/implementation.c
@@ -39,6 +39,7 @@ puglSetDefaultHints(PuglHints hints)
hints[PUGL_STENCIL_BITS] = 8;
hints[PUGL_SAMPLES] = 0;
hints[PUGL_DOUBLE_BUFFER] = PUGL_FALSE;
+ hints[PUGL_SWAP_INTERVAL] = 0;
hints[PUGL_RESIZABLE] = PUGL_FALSE;
hints[PUGL_IGNORE_KEY_REPEAT] = PUGL_FALSE;
}
diff --git a/pugl/detail/win_gl.c b/pugl/detail/win_gl.c
index 0768a4e..eb7771c 100644
--- a/pugl/detail/win_gl.c
+++ b/pugl/detail/win_gl.c
@@ -220,7 +220,7 @@ puglWinGlCreate(PuglView* view)
// Enter context and set swap interval
wglMakeCurrent(impl->hdc, surface->hglrc);
if (surface->procs.wglSwapInterval) {
- surface->procs.wglSwapInterval(1);
+ surface->procs.wglSwapInterval(view->hints[PUGL_SWAP_INTERVAL]);
}
return 0;
diff --git a/pugl/pugl.h b/pugl/pugl.h
index 1bd49bb..3284a5c 100644
--- a/pugl/pugl.h
+++ b/pugl/pugl.h
@@ -110,6 +110,7 @@ typedef enum {
PUGL_STENCIL_BITS, /**< Number of bits for stencil buffer */
PUGL_SAMPLES, /**< Number of samples per pixel (AA) */
PUGL_DOUBLE_BUFFER, /**< True if double buffering should be used */
+ PUGL_SWAP_INTERVAL, /**< Number of frames between buffer swaps */
PUGL_RESIZABLE, /**< True if window should be resizable */
PUGL_IGNORE_KEY_REPEAT, /**< True if key repeat events are ignored */
diff --git a/test/pugl_test.c b/test/pugl_test.c
index 65f764e..7ee04b8 100644
--- a/test/pugl_test.c
+++ b/test/pugl_test.c
@@ -324,6 +324,7 @@ main(int argc, char** argv)
puglInitWindowHint(app.parent, PUGL_RESIZABLE, resizable);
puglInitWindowHint(app.parent, PUGL_SAMPLES, samples);
puglInitWindowHint(app.parent, PUGL_DOUBLE_BUFFER, doubleBuffer);
+ puglInitWindowHint(app.parent, PUGL_SWAP_INTERVAL, doubleBuffer);
puglInitWindowHint(app.parent, PUGL_IGNORE_KEY_REPEAT, ignoreKeyRepeat);
puglSetHandle(app.parent, &app);
puglSetEventFunc(app.parent, onParentEvent);
@@ -341,6 +342,7 @@ main(int argc, char** argv)
puglInitWindowHint(app.child, PUGL_SAMPLES, samples);
puglInitWindowHint(app.child, PUGL_DOUBLE_BUFFER, doubleBuffer);
+ puglInitWindowHint(app.child, PUGL_SWAP_INTERVAL, 0);
puglInitBackend(app.child, puglGlBackend());
puglInitWindowHint(app.child, PUGL_IGNORE_KEY_REPEAT, ignoreKeyRepeat);
puglSetHandle(app.child, &app);
--
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