From 9a76a2d0611fc0c35b665fb886d437e8f4d5b4df Mon Sep 17 00:00:00 2001
From: Tony Wasserka
Date: Sun, 27 Jul 2014 14:58:30 +0200
Subject: Pica: Add primitive assembly stage.

---
 src/video_core/primitive_assembly.cpp | 52 +++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 src/video_core/primitive_assembly.cpp

(limited to 'src/video_core/primitive_assembly.cpp')

diff --git a/src/video_core/primitive_assembly.cpp b/src/video_core/primitive_assembly.cpp
new file mode 100644
index 000000000..b2196d13c
--- /dev/null
+++ b/src/video_core/primitive_assembly.cpp
@@ -0,0 +1,52 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#include "pica.h"
+#include "primitive_assembly.h"
+#include "vertex_shader.h"
+
+namespace Pica {
+
+namespace PrimitiveAssembly {
+
+static OutputVertex buffer[2];
+static int buffer_index = 0; // TODO: reset this on emulation restart
+
+void SubmitVertex(OutputVertex& vtx)
+{
+    switch (registers.triangle_topology) {
+        case Regs::TriangleTopology::List:
+        case Regs::TriangleTopology::ListIndexed:
+            if (buffer_index < 2) {
+                buffer[buffer_index++] = vtx;
+            } else {
+                buffer_index = 0;
+
+                // TODO
+                // Clipper::ProcessTriangle(buffer[0], buffer[1], vtx);
+            }
+            break;
+
+        case Regs::TriangleTopology::Fan:
+            if (buffer_index == 2) {
+                buffer_index = 0;
+
+                // TODO
+                // Clipper::ProcessTriangle(buffer[0], buffer[1], vtx);
+
+                buffer[1] = vtx;
+            } else {
+                buffer[buffer_index++] = vtx;
+            }
+            break;
+
+        default:
+            ERROR_LOG(GPU, "Unknown triangle mode %x:", (int)registers.triangle_topology.Value());
+            break;
+    }
+}
+
+} // namespace
+
+} // namespace
-- 
cgit v1.2.3


From 94aa9da562457e1fed4911d1cda770c3e42bd419 Mon Sep 17 00:00:00 2001
From: Tony Wasserka
Date: Sun, 27 Jul 2014 17:34:11 +0200
Subject: Pica: Add triangle clipper.

---
 src/video_core/primitive_assembly.cpp | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

(limited to 'src/video_core/primitive_assembly.cpp')

diff --git a/src/video_core/primitive_assembly.cpp b/src/video_core/primitive_assembly.cpp
index b2196d13c..2354ffb99 100644
--- a/src/video_core/primitive_assembly.cpp
+++ b/src/video_core/primitive_assembly.cpp
@@ -2,6 +2,7 @@
 // Licensed under GPLv2
 // Refer to the license.txt file included.
 
+#include "clipper.h"
 #include "pica.h"
 #include "primitive_assembly.h"
 #include "vertex_shader.h"
@@ -23,8 +24,7 @@ void SubmitVertex(OutputVertex& vtx)
             } else {
                 buffer_index = 0;
 
-                // TODO
-                // Clipper::ProcessTriangle(buffer[0], buffer[1], vtx);
+                Clipper::ProcessTriangle(buffer[0], buffer[1], vtx);
             }
             break;
 
@@ -32,8 +32,7 @@ void SubmitVertex(OutputVertex& vtx)
             if (buffer_index == 2) {
                 buffer_index = 0;
 
-                // TODO
-                // Clipper::ProcessTriangle(buffer[0], buffer[1], vtx);
+                Clipper::ProcessTriangle(buffer[0], buffer[1], vtx);
 
                 buffer[1] = vtx;
             } else {
-- 
cgit v1.2.3