diff options
author | Erik De Rijcke <[email protected]> | 2015-05-10 22:06:27 +0200 |
---|---|---|
committer | Sven Gothel <[email protected]> | 2019-11-21 03:44:24 +0100 |
commit | df599b1c9b08da7335b2c6036c1c9f308ec56387 (patch) | |
tree | 5e2044bfda07efbc1b2edf3d1b422286fc35aa2d /src/newt/native/gbm.c | |
parent | e1d767a4063d2503f9099d24a570664f6acd1a34 (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.c | 131 |
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; }
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