provide drm_output_new_mode interface to create new mode
from outsite instead of only from edid or configure.
Signed-off-by: Quanxian Wang <quanxian.w...@intel.com>
---
src/compositor-drm.c | 92 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 92 insertions(+)
diff --git a/src/compositor-drm.c b/src/compositor-drm.c
index 154e15e..f988692 100644
--- a/src/compositor-drm.c
+++ b/src/compositor-drm.c
@@ -1390,6 +1390,96 @@ drm_output_add_mode(struct drm_output *output,
drmModeModeInfo *info)
}
static int
+drm_output_compare_timing(struct weston_mode *mode,
+ uint32_t clock,
+ int hdisplay,
+ int hsync_start,
+ int hsync_end,
+ int htotal,
+ int vdisplay,
+ int vsync_start,
+ int vsync_end,
+ int vtotal,
+ int vscan,
+ uint32_t flags)
+{
+ struct drm_mode *drmmode = (struct drm_mode *)mode;
+ drmModeModeInfo *modeinfo = &drmmode->mode_info;
+
+ return (modeinfo->clock == clock &&
+ modeinfo->hdisplay == hdisplay &&
+ modeinfo->hsync_start == hsync_start &&
+ modeinfo->hsync_end == hsync_end &&
+ modeinfo->htotal == htotal &&
+ modeinfo->vdisplay == vdisplay &&
+ modeinfo->vsync_start == vsync_start &&
+ modeinfo->vsync_end == vsync_end &&
+ modeinfo->vtotal == vtotal &&
+ modeinfo->vscan == vscan &&
+ modeinfo->flags == flags);
+}
+
+static struct weston_mode *
+drm_output_new_timing(struct weston_output *output,
+ uint32_t clock,
+ int hdisplay,
+ int hsync_start,
+ int hsync_end,
+ int htotal,
+ int vdisplay,
+ int vsync_start,
+ int vsync_end,
+ int vtotal,
+ int vscan,
+ uint32_t flags)
+{
+ drmModeModeInfo *modeinfo;
+ struct drm_mode *mode = NULL;
+ uint64_t refresh;
+
+ modeinfo = zalloc(sizeof(*modeinfo));
+ if (modeinfo == NULL)
+ return NULL;
+
+ modeinfo->type = DRM_MODE_TYPE_USERDEF;
+ modeinfo->hskew = 0;
+ modeinfo->hdisplay = hdisplay;
+ modeinfo->hsync_start = hsync_start;
+ modeinfo->hsync_end = hsync_end;
+ modeinfo->htotal = htotal;
+ modeinfo->vdisplay = vdisplay;
+ modeinfo->vsync_start = vsync_start;
+ modeinfo->vsync_end = vsync_end;
+ modeinfo->vtotal = vtotal;
+ modeinfo->vscan = vscan;
+ modeinfo->flags = flags;
+ modeinfo->clock = clock;
+
+ /* Calculate higher precision (mHz) refresh rate */
+ refresh = (clock * 1000000LL / htotal +
+ vtotal / 2) / vtotal;
+
+ if (flags & DRM_MODE_FLAG_INTERLACE)
+ refresh *= 2;
+ if (flags & DRM_MODE_FLAG_DBLSCAN)
+ refresh /= 2;
+ if (vscan > 1)
+ refresh /= vscan;
+
+ /* For new timing, there is no set for vrefresh.
+ * But in choose_mode, it will check with refresh value.
+ * So set vrefresh value to be refresh.
+ */
+ modeinfo->vrefresh = refresh;
+
+ mode = drm_output_add_mode((struct drm_output *)output, modeinfo);
+ if (mode)
+ return &mode->base;
+ else
+ return NULL;
+}
+
+static int
drm_subpixel_to_wayland(int drm_value)
{
switch (drm_value) {
@@ -2046,6 +2136,8 @@ create_output_for_connector(struct drm_compositor *ec,
output->base.assign_planes = drm_assign_planes;
output->base.set_dpms = drm_set_dpms;
output->base.switch_mode = drm_output_switch_mode;
+ output->base.new_timing = drm_output_new_timing;
+ output->base.compare_timing = drm_output_compare_timing;
output->base.gamma_size = output->original_crtc->gamma_size;
output->base.set_gamma = drm_output_set_gamma;
--
1.8.1.2
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