Mesa (10.1): haiku: Fix build through scons corrections and viewport fixes

[Carl Worth]

Module: Mesa
Branch: 10.1
Commit: 9f1fe12fd11ff5d8345bc8536049e1dbc3f8fb08
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=9f1fe12fd11ff5d8345bc8536049e1dbc3f8fb08

Author: Alexander von Gluck IV <kallisti5 at unixzen.com>
Date:   Wed Mar 19 00:58:01 2014 +0000

haiku: Fix build through scons corrections and viewport fixes

* Add HAVE_PTHREAD, we do have pthread support wrappers now for
  non-native Haiku threaded applications.
* Viewport changed behavior recently breaking the build.
  We fix this by looking at the gl_context ViewportArray
  (Thanks Brian for the idea)

Acked-by: Brian Paul <brianp at vmware.com>
(cherry picked from commit 7683fce8781ef0169333c5ee1276392d058cfaa8)

---

 scons/gallium.py                                      |    5 +++++
 src/gallium/targets/haiku-softpipe/GalliumContext.cpp |   12 +++++++++---
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/scons/gallium.py b/scons/gallium.py
index 70ee89b..9796c78 100755
--- a/scons/gallium.py
+++ b/scons/gallium.py
@@ -269,6 +269,11 @@ def generate(env):
             cppdefines += ['HAVE_ALIAS']
         else:
             cppdefines += ['GLX_ALIAS_UNSUPPORTED']
+    if env['platform'] == 'haiku':
+        cppdefines += [
+            'HAVE_PTHREAD',
+            'HAVE_POSIX_MEMALIGN'
+        ]
     if platform == 'windows':
         cppdefines += [
             'WIN32',
diff --git a/src/gallium/targets/haiku-softpipe/GalliumContext.cpp b/src/gallium/targets/haiku-softpipe/GalliumContext.cpp
index 1078cb7..52cd764 100644
--- a/src/gallium/targets/haiku-softpipe/GalliumContext.cpp
+++ b/src/gallium/targets/haiku-softpipe/GalliumContext.cpp
@@ -44,9 +44,15 @@ extern "C" {
 
 
 static void
-hgl_viewport(struct gl_context* glContext, GLint x, GLint y,
-	GLsizei width, GLsizei height)
+hgl_viewport(struct gl_context* glContext)
 {
+	// TODO: We should try to eliminate this function
+
+	GLint x = glContext->ViewportArray[0].X;
+	GLint y = glContext->ViewportArray[0].Y;
+	GLint width = glContext->ViewportArray[0].Width;
+	GLint height = glContext->ViewportArray[0].Height;
+
 	TRACE("%s(glContext: %p, x: %d, y: %d, w: %d, h: %d\n", __func__,
 		glContext, x, y, width, height);
 
@@ -525,7 +531,7 @@ GalliumContext::ResizeViewport(int32 width, int32 height)
 	for (context_id i = 0; i < CONTEXT_MAX; i++) {
 		if (fContext[i] && fContext[i]->st) {
 			struct st_context *stContext = (struct st_context*)fContext[i]->st;
-			_mesa_set_viewport(stContext->ctx, 0, 0, width, height);
+			_mesa_set_viewport(stContext->ctx, 0, 0, 0, width, height);
         		st_manager_validate_framebuffers(stContext);
 		}
 	}