From efb2a3f8e3f012b9f92e4229e62ddf2f71373e9c Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Sat, 20 Jun 2015 03:05:03 -0300
Subject: reicast-git-r1200.a9fc0f5-3: wait if two frames already in flight

* this also disables involuntary frameskipping, even if the framerate is too low to sustain fullspeed -> https://github.com/reicast/reicast-emulator/issues/611
---
 pcr/reicast-git/PKGBUILD                           |  9 ++-
 .../wait_if_two_frames_already_in_flight.patch     | 70 ++++++++++++++++++++++
 2 files changed, 76 insertions(+), 3 deletions(-)
 create mode 100644 pcr/reicast-git/wait_if_two_frames_already_in_flight.patch

diff --git a/pcr/reicast-git/PKGBUILD b/pcr/reicast-git/PKGBUILD
index ab671fc2f..cfb00ed13 100644
--- a/pcr/reicast-git/PKGBUILD
+++ b/pcr/reicast-git/PKGBUILD
@@ -4,7 +4,7 @@
 
 pkgname=reicast-git
 pkgver=r1200.a9fc0f5
-pkgrel=2
+pkgrel=3
 pkgdesc="A multiplatform Sega Dreamcast emulator"
 arch=('i686' 'x86_64')
 url="http://reicast.com/"
@@ -18,9 +18,11 @@ depends_i686=('libgl' 'alsa-plugins')
 optdepends=('xboxdrv: Userspace gamepad driver for Xbox and Xbox360 gamepads'
             'antimicro: Graphical program used to map keyboard keys and mouse controls to gamepad buttons')
 source=(reicast::"git+https://github.com/reicast/reicast-emulator.git"
-        'enable_joystick_support.patch')
+        'enable_joystick_support.patch'
+        'wait_if_two_frames_already_in_flight.patch')
 sha256sums=('SKIP'
-            'e0f53e5834acb5978c2b9f55cbfb8586f9482ea0bab1eec4398d87608a9b264e')
+            'e0f53e5834acb5978c2b9f55cbfb8586f9482ea0bab1eec4398d87608a9b264e'
+            'f4d3b4ad7703da09dc59cae839ca225e1a21b89d905ede3519bf3174b40903da')
 
 pkgver() {
   cd reicast
@@ -30,6 +32,7 @@ pkgver() {
 prepare () {
   cd reicast
   patch -Np1 -i "$srcdir"/enable_joystick_support.patch
+  patch -Np1 -i "$srcdir"/wait_if_two_frames_already_in_flight.patch
 }
 
 build () {
diff --git a/pcr/reicast-git/wait_if_two_frames_already_in_flight.patch b/pcr/reicast-git/wait_if_two_frames_already_in_flight.patch
new file mode 100644
index 000000000..ff297365c
--- /dev/null
+++ b/pcr/reicast-git/wait_if_two_frames_already_in_flight.patch
@@ -0,0 +1,70 @@
+diff -Nur reicast-emulator.orig/core/hw/pvr/Renderer_if.cpp reicast-emulator/core/hw/pvr/Renderer_if.cpp
+--- reicast-emulator.orig/core/hw/pvr/Renderer_if.cpp	2015-06-20 02:04:02.180069939 -0300
++++ reicast-emulator/core/hw/pvr/Renderer_if.cpp	2015-06-20 02:10:17.831402600 -0300
+@@ -184,6 +184,7 @@
+ 
+ bool rend_frame(TA_context* ctx, bool draw_osd) {
+ 	bool proc = renderer->Process(ctx);
++	FinishRender(_pvrrc);
+ 	re.Set();
+ 
+ 	bool do_swp = proc && renderer->Render();
+@@ -207,7 +208,7 @@
+ 	bool do_swp = rend_frame(_pvrrc, true);
+ 
+ 	//clear up & free data ..
+-	FinishRender(_pvrrc);
++	tactx_Recycle(_pvrrc);
+ 	_pvrrc=0;
+ 
+ 	return do_swp;
+@@ -260,6 +261,7 @@
+ 
+ 
+ bool pend_rend = false;
++extern TA_context* rqueue;
+ 
+ void rend_resize(int width, int height) {
+ 	renderer->Resize(width, height);
+@@ -268,6 +270,10 @@
+ 
+ void rend_start_render()
+ {
++	if (rqueue) {
++		rend_end_render();
++	}
++
+ 	pend_rend = false;
+ 	bool is_rtt=(FB_W_SOF1& 0x1000000)!=0;
+ 	TA_context* ctx = tactx_Pop(CORE_CURRENT_CTX);
+@@ -314,7 +320,6 @@
+ 	}
+ }
+ 
+-
+ void rend_end_render()
+ {
+ #if 1 //also disabled the printf, it takes quite some time ...
+@@ -325,8 +330,9 @@
+ 	#endif
+ #endif
+ 
+-	if (pend_rend)
++	if (pend_rend) {
+ 		re.Wait();
++	}
+ }
+ 
+ /*
+diff -Nur reicast-emulator.orig/core/hw/pvr/ta_ctx.cpp reicast-emulator/core/hw/pvr/ta_ctx.cpp
+--- reicast-emulator.orig/core/hw/pvr/ta_ctx.cpp	2015-06-20 02:04:02.186736275 -0300
++++ reicast-emulator/core/hw/pvr/ta_ctx.cpp	2015-06-20 02:07:44.202370584 -0300
+@@ -119,8 +119,6 @@
+ 	mtx_rqueue.Lock();
+ 	rqueue = 0;
+ 	mtx_rqueue.Unlock();
+-
+-	tactx_Recycle(ctx);
+ }
+ 
+ cMutex mtx_pool;
-- 
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