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authorErik De Rijcke <[email protected]>2015-05-10 22:06:27 +0200
committerSven Gothel <[email protected]>2019-11-21 03:44:24 +0100
commitdf599b1c9b08da7335b2c6036c1c9f308ec56387 (patch)
tree5e2044bfda07efbc1b2edf3d1b422286fc35aa2d /src/newt/native/gbm.c
parente1d767a4063d2503f9099d24a570664f6acd1a34 (diff)
add native gbm implementation for drm and gbm initialization.
Diffstat (limited to 'src/newt/native/gbm.c')
-rw-r--r--src/newt/native/gbm.c131
1 files changed, 113 insertions, 18 deletions
diff --git a/src/newt/native/gbm.c b/src/newt/native/gbm.c
index 8b0baedc5..19efb8d7a 100644
--- a/src/newt/native/gbm.c
+++ b/src/newt/native/gbm.c
@@ -2,32 +2,118 @@
#include "jogamp_newt_driver_gbm_ScreenDriver.h"
#include "jogamp_newt_driver_gbm_WindowDriver.h"
-/*
- * Class: jogamp_newt_driver_gbm_DisplayDriver
- * Method: initIDs
- * Signature: ()Z
- */
-JNIEXPORT jboolean JNICALL Java_jogamp_newt_driver_gbm_DisplayDriver_initIDs
- (JNIEnv *env, jclass cls){
- }
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+#include <gbm.h>
+
+static struct {
+ struct gbm_device *dev;
+ struct gbm_surface *surface;
+} gbm;
+
+static struct {
+ int fd;
+ drmModeModeInfo *mode;
+ uint32_t crtc_id;
+ uint32_t connector_id;
+} drm;
+
+struct drm_fb {
+ struct gbm_bo *bo;
+ uint32_t fb_id;
+};
/*
* Class: jogamp_newt_driver_gbm_DisplayDriver
* Method: initGbm
- * Signature: ()V
+ * Signature: (J)V
*/
JNIEXPORT void JNICALL Java_jogamp_newt_driver_gbm_DisplayDriver_initGbm
(JNIEnv *env, jobject this){
+ static const char *modules[] = {
+ "i915", "radeon", "nouveau", "vmwgfx", "omapdrm", "exynos", "msm"
+ };
+ drmModeRes *resources;
+ drmModeConnector *connector = NULL;
+ drmModeEncoder *encoder = NULL;
+ int i, area;
- }
+ for (i = 0; i < ARRAY_SIZE(modules); i++) {
+ printf("trying to load module %s...", modules[i]);
+ drm.fd = drmOpen(modules[i], NULL);
+ if (drm.fd < 0) {
+ printf("failed.\n");
+ } else {
+ printf("success.\n");
+ break;
+ }
+ }
-/*
- * Class: jogamp_newt_driver_gbm_DisplayDriver
- * Method: init
- * Signature: ()V
- */
-JNIEXPORT void JNICALL Java_jogamp_newt_driver_gbm_DisplayDriver_init
- (JNIEnv *env, jobject this){
+ if (drm.fd < 0) {
+ printf("could not open drm device\n");
+ return -1;
+ }
+
+ resources = drmModeGetResources(drm.fd);
+ if (!resources) {
+ printf("drmModeGetResources failed: %s\n", strerror(errno));
+ return -1;
+ }
+
+ /* find a connected connector: */
+ for (i = 0; i < resources->count_connectors; i++) {
+ connector = drmModeGetConnector(drm.fd, resources->connectors[i]);
+ if (connector->connection == DRM_MODE_CONNECTED) {
+ /* it's connected, let's use this! */
+ break;
+ }
+ drmModeFreeConnector(connector);
+ connector = NULL;
+ }
+
+ if (!connector) {
+ /* we could be fancy and listen for hotplug events and wait for
+ * a connector..
+ */
+ printf("no connected connector!\n");
+ return -1;
+ }
+
+ /* find highest resolution mode: */
+ for (i = 0, area = 0; i < connector->count_modes; i++) {
+ drmModeModeInfo *current_mode = &connector->modes[i];
+ int current_area = current_mode->hdisplay * current_mode->vdisplay;
+ if (current_area > area) {
+ drm.mode = current_mode;
+ area = current_area;
+ }
+ }
+
+ if (!drm.mode) {
+ printf("could not find mode!\n");
+ return -1;
+ }
+
+ /* find encoder: */
+ for (i = 0; i < resources->count_encoders; i++) {
+ encoder = drmModeGetEncoder(drm.fd, resources->encoders[i]);
+ if (encoder->encoder_id == connector->encoder_id)
+ break;
+ drmModeFreeEncoder(encoder);
+ encoder = NULL;
+ }
+
+ if (!encoder) {
+ printf("no encoder!\n");
+ return -1;
+ }
+
+ drm.crtc_id = encoder->crtc_id;
+ drm.connector_id = connector->connector_id;
+
+ gbm.dev = gbm_create_device(drm.fd);
+
+ return gbm.dev;
}
/*
@@ -45,5 +131,14 @@ JNIEXPORT void JNICALL Java_jogamp_newt_driver_gbm_DisplayDriver_destroyDisplay
* Signature: (J)J
*/
JNIEXPORT jlong JNICALL Java_jogamp_newt_driver_gbm_WindowDriver_createSurface
- (JNIEnv *env, jobject this, jlong gbmDevice){
+ (JNIEnv *env, jobject this){
+ gbm.surface = gbm_surface_create(gbm.dev,
+ drm.mode->hdisplay, drm.mode->vdisplay,
+ GBM_FORMAT_XRGB8888,
+ GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
+ if (!gbm.surface) {
+ printf("failed to create gbm surface\n");
+ return -1;
+ }
+ return gbm.surface;
} \ No newline at end of file