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authorMarek Olšák <maraeo@gmail.com>2010-08-07 02:05:03 +0200
committerMarek Olšák <maraeo@gmail.com>2010-08-08 22:28:35 +0200
commit757c78afe7cca6a05c88c0c203fa5f4488ebd0ed (patch)
treee5a42cd562aa41f61e99c2fb91d334857690063a /src/gallium/winsys/radeon/drm/radeon_drm.c
parentd8279728165eec2da6031cf543820acad322d192 (diff)
r300g: generalize the way we ask for hyperz
This makes it compatible with the modified DRM interface in drm-radeon-testing. Also, now you need to set RADEON_HYPERZ=1 to be able to use hyperz. It's not bug-free yet.
Diffstat (limited to 'src/gallium/winsys/radeon/drm/radeon_drm.c')
-rw-r--r--src/gallium/winsys/radeon/drm/radeon_drm.c35
1 files changed, 26 insertions, 9 deletions
diff --git a/src/gallium/winsys/radeon/drm/radeon_drm.c b/src/gallium/winsys/radeon/drm/radeon_drm.c
index ecaf096dea2..593741b86c7 100644
--- a/src/gallium/winsys/radeon/drm/radeon_drm.c
+++ b/src/gallium/winsys/radeon/drm/radeon_drm.c
@@ -55,6 +55,31 @@ radeon_winsys_create(int fd)
return rws;
}
+/* Enable/disable Hyper-Z access. Return TRUE on success. */
+static boolean radeon_set_hyperz_access(int fd, boolean enable)
+{
+#ifndef RADEON_INFO_WANT_HYPERZ
+#define RADEON_INFO_WANT_HYPERZ 7
+#endif
+
+ struct drm_radeon_info info = {0};
+ unsigned value = enable ? 1 : 0;
+
+ if (!debug_get_bool_option("RADEON_HYPERZ", FALSE))
+ return FALSE;
+
+ info.value = (unsigned long)&value;
+ info.request = RADEON_INFO_WANT_HYPERZ;
+
+ if (drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info)) != 0)
+ return FALSE;
+
+ if (enable && !value)
+ return FALSE;
+
+ return TRUE;
+}
+
/* Helper function to do the ioctls needed for setup and init. */
static void do_ioctls(int fd, struct radeon_libdrm_winsys* winsys)
{
@@ -134,15 +159,7 @@ static void do_ioctls(int fd, struct radeon_libdrm_winsys* winsys)
}
winsys->z_pipes = target;
- winsys->hyperz = FALSE;
-#ifndef RADEON_INFO_WANT_HYPERZ
-#define RADEON_INFO_WANT_HYPERZ 7
-#endif
- info.request = RADEON_INFO_WANT_HYPERZ;
- retval = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info));
- if (!retval && target == 1) {
- winsys->hyperz = TRUE;
- }
+ winsys->hyperz = radeon_set_hyperz_access(fd, TRUE);
retval = drmCommandWriteRead(fd, DRM_RADEON_GEM_INFO,
&gem_info, sizeof(gem_info));