drm_hwcomposer: Wrap libdrm ops (minus modeset/flip) in C++ classes

This allows us to compartmentalize a bunch of code/logic from
hwcomposer.cpp into drm classes.

Signed-off-by: Sean Paul <seanpaul@chromium.org>

Change-Id: Id3f912126f1fdcd44d32c3eb4fba646f77590278

1 files changed, 163 insertions, 0 deletions

diff --git a/drmmode.cpp b/drmmode.cpp
new file mode 100644
index 0000000..c2def1e
--- /dev/null
+++ b/drmmode.cpp
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "drmmode.h"
+#include "drmresources.h"
+
+#include <stdint.h>
+#include <string>
+
+#include <xf86drmMode.h>
+
+namespace android {
+
+DrmMode::DrmMode(drmModeModeInfoPtr m)
+    : id_(0),
+      clock_(m->clock),
+      h_display_(m->hdisplay),
+      h_sync_start_(m->hsync_start),
+      h_sync_end_(m->hsync_end),
+      h_total_(m->htotal),
+      h_skew_(m->hskew),
+      v_display_(m->vdisplay),
+      v_sync_start_(m->vsync_start),
+      v_sync_end_(m->vsync_end),
+      v_total_(m->vtotal),
+      v_scan_(m->vscan),
+      v_refresh_(m->vrefresh),
+      flags_(m->flags),
+      type_(m->type),
+      name_(m->name) {
+}
+
+DrmMode::DrmMode()
+    : id_(0),
+      clock_(0),
+      h_display_(0),
+      h_sync_start_(0),
+      h_sync_end_(0),
+      h_total_(0),
+      h_skew_(0),
+      v_display_(0),
+      v_sync_start_(0),
+      v_sync_end_(0),
+      v_total_(0),
+      v_scan_(0),
+      v_refresh_(0),
+      flags_(0),
+      type_(0),
+      name_("") {
+}
+
+DrmMode::~DrmMode() {
+}
+
+bool DrmMode::operator==(const drmModeModeInfo &m) const {
+  return clock_ == m.clock && h_display_ == m.hdisplay &&
+         h_sync_start_ == m.hsync_start && h_sync_end_ == m.hsync_end &&
+         h_total_ == m.htotal && h_skew_ == m.hskew &&
+         v_display_ == m.vdisplay && v_sync_start_ == m.vsync_start &&
+         v_sync_end_ == m.vsync_end && v_total_ == m.vtotal &&
+         v_scan_ == m.vscan && v_refresh_ == m.vrefresh && flags_ == m.flags &&
+         type_ == m.type;
+}
+
+void DrmMode::ToModeModeInfo(drmModeModeInfo *m) const {
+  m->clock = clock_;
+  m->hdisplay = h_display_;
+  m->hsync_start = h_sync_start_;
+  m->hsync_end = h_sync_end_;
+  m->htotal = h_total_;
+  m->hskew = h_skew_;
+  m->vdisplay = v_display_;
+  m->vsync_start = v_sync_start_;
+  m->vsync_end = v_sync_end_;
+  m->vtotal = v_total_;
+  m->vscan = v_scan_;
+  m->vrefresh = v_refresh_;
+  m->flags = flags_;
+  m->type = type_;
+  strncpy(m->name, name_.c_str(), DRM_DISPLAY_MODE_LEN);
+}
+
+uint32_t DrmMode::id() const {
+  return id_;
+}
+
+void DrmMode::set_id(uint32_t id) {
+  id_ = id;
+}
+
+uint32_t DrmMode::clock() const {
+  return clock_;
+}
+
+uint32_t DrmMode::h_display() const {
+  return h_display_;
+}
+
+uint32_t DrmMode::h_sync_start() const {
+  return h_sync_start_;
+}
+
+uint32_t DrmMode::h_sync_end() const {
+  return h_sync_end_;
+}
+
+uint32_t DrmMode::h_total() const {
+  return h_total_;
+}
+
+uint32_t DrmMode::h_skew() const {
+  return h_skew_;
+}
+
+uint32_t DrmMode::v_display() const {
+  return v_display_;
+}
+
+uint32_t DrmMode::v_sync_start() const {
+  return v_sync_start_;
+}
+
+uint32_t DrmMode::v_sync_end() const {
+  return v_sync_end_;
+}
+
+uint32_t DrmMode::v_total() const {
+  return v_total_;
+}
+
+uint32_t DrmMode::v_scan() const {
+  return v_scan_;
+}
+
+uint32_t DrmMode::v_refresh() const {
+  return v_refresh_;
+}
+
+uint32_t DrmMode::flags() const {
+  return flags_;
+}
+
+uint32_t DrmMode::type() const {
+  return type_;
+}
+
+std::string DrmMode::name() const {
+  return name_;
+}
+}