aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--src/newt/native/drm_gbm_egl_test01.c813
-rw-r--r--src/newt/native/make-drm_gbm_egl_test01.sh17
2 files changed, 830 insertions, 0 deletions
diff --git a/src/newt/native/drm_gbm_egl_test01.c b/src/newt/native/drm_gbm_egl_test01.c
new file mode 100644
index 000000000..f44f52a9f
--- /dev/null
+++ b/src/newt/native/drm_gbm_egl_test01.c
@@ -0,0 +1,813 @@
+/**
+ * Copyright 2019 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <string.h>
+#include <fcntl.h>
+#include <inttypes.h>
+
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+#include <gbm.h>
+
+#define WEAK __attribute__((weak))
+
+#define VERBOSE_ON 1
+
+#ifdef VERBOSE_ON
+ #define DBG_PRINT(...) fprintf(stderr, __VA_ARGS__); fflush(stderr)
+#else
+ #define DBG_PRINT(...)
+#endif
+#define ERR_PRINT(...) fprintf(stderr, __VA_ARGS__); fflush(stderr)
+
+
+#define GL_GLEXT_PROTOTYPES 1
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <assert.h>
+
+typedef struct {
+ int fd; // drmClose
+ drmModeConnector *connector; // drmModeFreeConnector
+ drmModeEncoder *encoder; // drmModeFreeEncoder
+ int crtc_index;
+
+ drmModeModeInfo *current_mode;
+} DRM_HANDLE;
+
+static void freeDrm(DRM_HANDLE *drm) {
+ if( NULL != drm ) {
+ if( NULL != drm->encoder ) {
+ drmModeFreeEncoder(drm->encoder);
+ drm->encoder = NULL;
+ }
+ if( NULL != drm->connector ) {
+ drmModeFreeConnector(drm->connector);
+ drm->connector = NULL;
+ }
+ if( 0 <= drm->fd ) {
+ drmClose(drm->fd);
+ drm->fd = -1;
+ }
+ free(drm);
+ }
+}
+
+static DRM_HANDLE * initDrm(int verbose)
+{
+ static const char *linux_dri_card0 = "/dev/dri/card0";
+ static const char *modules[] = {
+ "i915", "radeon", "nouveau", "vmwgfx", "omapdrm", "exynos", "msm"
+ };
+ int module_count = sizeof(modules) / sizeof(const char*);
+ const char * module_used = NULL;
+ int ret, i, j, area;
+ DRM_HANDLE *drm = calloc(1, sizeof(DRM_HANDLE));
+ drmModeRes *resources = NULL;
+
+#ifdef VERBOSE_ON
+ verbose = 1;
+#endif
+
+ if( verbose ) {
+ ERR_PRINT( "EGL_GBM.Display initDrm start\n");
+ }
+
+ drm->fd = -1;
+
+#if 1
+ // try linux_dri_card0 first
+ drm->fd = open(linux_dri_card0, O_RDWR);
+ ERR_PRINT("EGL_GBM.Display trying to open '%s': success %d\n",
+ linux_dri_card0, 0<=drm->fd);
+#endif
+
+ // try drm modules
+ for (i = 0; 0>drm->fd && i < module_count; i++) {
+ if( verbose ) {
+ ERR_PRINT("EGL_GBM.Display trying to load module[%d/%d] %s...",
+ i, module_count, modules[i]);
+ }
+ drm->fd = drmOpen(modules[i], NULL);
+ if (drm->fd < 0) {
+ if( verbose ) {
+ ERR_PRINT("failed.\n");
+ }
+ } else {
+ if( verbose ) {
+ ERR_PRINT("success.\n");
+ }
+ module_used = modules[i];
+ }
+ }
+ if (drm->fd < 0) {
+ ERR_PRINT("EGL_GBM.Display could not open drm device\n");
+ goto error;
+ }
+
+#if 0
+ ret = drmSetMaster(drm->fd);
+ if(ret) {
+ //drmDropMaster(int fd);
+ DBG_PRINT( "EGL_GBM.Display drmSetMaster fd %d: FAILED: %d %s\n",
+ drm->fd, ret, strerror(errno));
+ } else {
+ DBG_PRINT( "EGL_GBM.Display drmSetMaster fd %d: OK\n", drm->fd);
+ }
+#endif
+
+ resources = drmModeGetResources(drm->fd);
+ if ( NULL == resources ) {
+ ERR_PRINT("EGL_GBM.Display drmModeGetResources failed on module %s: %s\n",
+ module_used, strerror(errno));
+ goto error;
+ }
+
+ if( verbose ) {
+ for (i = 0; i < resources->count_connectors; i++) {
+ drmModeConnector * c = drmModeGetConnector(drm->fd, resources->connectors[i]);
+ int chosen = DRM_MODE_CONNECTED == c->connection;
+ ERR_PRINT( "EGL_GBM.Display Connector %d/%d chosen %d: id[con 0x%x, enc 0x%x], type %d[id 0x%x], connection %d, dim %dx%x mm, modes %d, encoders %d\n",
+ i, resources->count_connectors, chosen,
+ c->connector_id, c->encoder_id, c->connector_type, c->connector_type_id,
+ c->connection, c->mmWidth, c->mmHeight, c->count_modes, c->count_encoders);
+ drmModeFreeConnector(c);
+ }
+ }
+ /* find a connected connector: */
+ for (i = 0; i < resources->count_connectors; i++) {
+ drm->connector = drmModeGetConnector(drm->fd, resources->connectors[i]);
+ if( DRM_MODE_CONNECTED == drm->connector->connection ) {
+ break;
+ } else {
+ drmModeFreeConnector(drm->connector);
+ drm->connector = NULL;
+ }
+ }
+ if( i >= resources->count_connectors ) {
+ /* we could be fancy and listen for hotplug events and wait for
+ * a connector..
+ */
+ ERR_PRINT("EGL_GBM.Display no connected connector (connector count %d, module %s)!\n",
+ resources->count_connectors, module_used);
+ goto error;
+ }
+
+ /* find highest resolution mode: */
+ for (i = 0, j = -1, area = 0; i < drm->connector->count_modes; i++) {
+ drmModeModeInfo *current_mode = &drm->connector->modes[i];
+ int current_area = current_mode->hdisplay * current_mode->vdisplay;
+ if (current_area > area) {
+ drm->current_mode = current_mode;
+ area = current_area;
+ j = i;
+ }
+ if( verbose ) {
+ ERR_PRINT( "EGL_GBM.Display Mode %d/%d (max-chosen %d): clock %d, %dx%d @ %d Hz, type %d, name <%s>\n",
+ i, drm->connector->count_modes, j,
+ current_mode->clock, current_mode->hdisplay, current_mode->vdisplay, current_mode->vrefresh,
+ current_mode->type, current_mode->name);
+ }
+ }
+ if ( NULL == drm->current_mode ) {
+ ERR_PRINT("EGL_GBM.Display could not find mode (module %s)!\n", module_used);
+ goto error;
+ }
+
+ if( verbose ) {
+ for (i = 0; i < resources->count_encoders; i++) {
+ drmModeEncoder * e = drmModeGetEncoder(drm->fd, resources->encoders[i]);
+ int chosen = e->encoder_id == drm->connector->encoder_id;
+ ERR_PRINT( "EGL_GBM.Display Encoder %d/%d chosen %d: id 0x%x, type %d, crtc_id 0x%x, possible[crtcs %d, clones %d]\n",
+ i, resources->count_encoders, chosen,
+ e->encoder_id, e->encoder_type, e->crtc_id,
+ e->possible_crtcs, e->possible_clones);
+ drmModeFreeEncoder(e);
+ }
+ }
+ /* find encoder: */
+ for (i = 0; i < resources->count_encoders; i++) {
+ drm->encoder = drmModeGetEncoder(drm->fd, resources->encoders[i]);
+ if( drm->encoder->encoder_id == drm->connector->encoder_id ) {
+ break;
+ } else {
+ drmModeFreeEncoder(drm->encoder);
+ drm->encoder = NULL;
+ }
+ }
+ if ( i >= resources->count_encoders ) {
+ ERR_PRINT("EGL_GBM.Display no encoder (module %s)!\n", module_used);
+ goto error;
+ }
+ for (i = 0; i < resources->count_crtcs; i++) {
+ if (resources->crtcs[i] == drm->encoder->crtc_id) {
+ drm->crtc_index = i;
+ break;
+ }
+ }
+
+ drmModeFreeResources(resources);
+ resources = NULL;
+
+ if( verbose ) {
+ DBG_PRINT( "EGL_GBM.Display initDrm end.X0 OK: fd %d, enc_id 0x%x, crtc_id 0x%x, conn_id 0x%x, curMode %s\n",
+ drm->fd, drm->encoder->encoder_id, drm->encoder->crtc_id, drm->connector->connector_id, drm->current_mode->name);
+ }
+
+ // drm->crtc_id = encoder->crtc_id;
+ // drm->connector_id = connector->connector_id;
+ return drm;
+
+error:
+ if( verbose ) {
+ DBG_PRINT( "EGL_GBM.Display initDrm end.X2 ERROR\n");
+ }
+ drmModeFreeResources(resources);
+ resources = NULL;
+ freeDrm(drm);
+ return NULL;
+}
+
+static int
+match_config_to_visual(EGLDisplay egl_display,
+ EGLint visual_id,
+ EGLConfig *configs,
+ int count)
+{
+ int i;
+
+ ERR_PRINT("match_config_to_visual: visual_id 0x%x\n", visual_id);
+
+ for (i = 0; i < count; ++i) {
+ EGLint id;
+
+ if (!eglGetConfigAttrib(egl_display,
+ configs[i], EGL_NATIVE_VISUAL_ID,
+ &id))
+ continue;
+
+ if (id == visual_id)
+ return i;
+ }
+
+ return -1;
+}
+static EGLConfig egl_choose_config(EGLDisplay egl_display, EGLint visual_id)
+{
+ EGLint count = 0;
+ EGLint matched = 0;
+ EGLConfig *configs;
+ EGLConfig res = NULL;
+ int config_index = -1;
+
+ EGLint n;
+ EGLConfig config;
+
+ static const EGLint attribs[] = {
+ EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
+ EGL_RED_SIZE, 8,
+ EGL_GREEN_SIZE, 8,
+ EGL_BLUE_SIZE, 8,
+ // EGL_ALPHA_SIZE, 0,
+ EGL_DEPTH_SIZE, 16,
+ // EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
+ EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT_KHR,
+ EGL_NONE
+ };
+
+ ERR_PRINT("egl_choose_config: visual_id 0x%x\n", visual_id);
+
+ if (!eglGetConfigs(egl_display, NULL, 0, &count) || count < 1) {
+ ERR_PRINT("No EGL configs to choose from.\n");
+ return NULL;
+ }
+ configs = calloc(count, sizeof(EGLConfig));
+ if (!configs) {
+ return NULL;
+ }
+
+ if (!eglChooseConfig(egl_display, attribs, configs,
+ count, &matched) || !matched) {
+ ERR_PRINT("No EGL configs with appropriate attributes.\n");
+ goto out;
+ }
+
+ if (!visual_id) {
+ config_index = 0;
+ }
+
+ if (config_index == -1) {
+ config_index = match_config_to_visual(egl_display,
+ visual_id,
+ configs,
+ matched);
+ }
+
+ if (config_index != -1) {
+ EGLint v;
+ res = configs[config_index];
+
+ if (eglGetConfigAttrib(egl_display, res, EGL_CONFIG_ID, &v)) {
+ ERR_PRINT("eglConfig[vid 0x%x]: cfgID 0x%x\n", visual_id, v);
+ }
+ if (eglGetConfigAttrib(egl_display, res, EGL_RENDERABLE_TYPE, &v)) {
+ ERR_PRINT(".. EGL_RENDERABLE_TYPE 0x%x\n", v);
+ }
+ if (eglGetConfigAttrib(egl_display, res, EGL_RED_SIZE, &v)) {
+ ERR_PRINT(".. EGL_RED_SIZE 0x%x\n", v);
+ }
+ if (eglGetConfigAttrib(egl_display, res, EGL_GREEN_SIZE, &v)) {
+ ERR_PRINT(".. EGL_GREEN_SIZE 0x%x\n", v);
+ }
+ if (eglGetConfigAttrib(egl_display, res, EGL_BLUE_SIZE, &v)) {
+ ERR_PRINT(".. EGL_BLUE_SIZE 0x%x\n", v);
+ }
+ if (eglGetConfigAttrib(egl_display, res, EGL_ALPHA_SIZE, &v)) {
+ ERR_PRINT(".. EGL_ALPHA_SIZE 0x%x\n", v);
+ }
+ if (eglGetConfigAttrib(egl_display, res, EGL_STENCIL_SIZE, &v)) {
+ ERR_PRINT(".. EGL_STENCIL_SIZE 0x%x\n", v);
+ }
+ if (eglGetConfigAttrib(egl_display, res, EGL_DEPTH_SIZE, &v)) {
+ ERR_PRINT(".. EGL_DEPTH_SIZE 0x%x\n", v);
+ }
+ }
+
+out:
+ free(configs);
+ ERR_PRINT("eglConfig[vid 0x%x]: config %p\n", visual_id, (void*)res);
+ return res;
+}
+
+static EGLDisplay getPlatformEGLDisplay(struct gbm_device * gbmDevice) {
+ PFNEGLGETPLATFORMDISPLAYEXTPROC get_platform_display = NULL;
+ get_platform_display =
+ (void *) eglGetProcAddress("eglGetPlatformDisplayEXT");
+ assert(get_platform_display != NULL);
+
+ return get_platform_display(EGL_PLATFORM_GBM_KHR, gbmDevice, NULL);
+}
+
+WEAK uint64_t
+gbm_bo_get_modifier(struct gbm_bo *bo);
+
+WEAK int
+gbm_bo_get_plane_count(struct gbm_bo *bo);
+
+WEAK uint32_t
+gbm_bo_get_stride_for_plane(struct gbm_bo *bo, int plane);
+
+WEAK uint32_t
+gbm_bo_get_offset(struct gbm_bo *bo, int plane);
+
+typedef struct {
+ struct gbm_bo *bo;
+ uint32_t fb_id;
+} DRM_FB;
+
+static void page_flip_handler(int fd, unsigned int frame,
+ unsigned int sec, unsigned int usec, void *data)
+{
+ /* suppress 'unused parameter' warnings */
+ (void)fd, (void)frame, (void)sec, (void)usec;
+
+ int *waiting_for_flip = data;
+ *waiting_for_flip = 0;
+}
+
+static drmEventContext drm_event_ctx = {
+ .version = DRM_EVENT_CONTEXT_VERSION,
+ .page_flip_handler = page_flip_handler,
+ };
+
+static void drm_fb_destroy_callback(struct gbm_bo *bo, void *data)
+{
+ struct gbm_device * gbmDev = gbm_bo_get_device(bo);
+ int drm_fd = gbm_device_get_fd(gbmDev);
+ DRM_FB *fb = data;
+
+ if (fb->fb_id)
+ drmModeRmFB(drm_fd, fb->fb_id);
+
+ free(fb);
+}
+
+static DRM_FB * drm_fb_get_from_bo2(int drmFd, struct gbm_bo *bo)
+{
+ DRM_FB *fb = gbm_bo_get_user_data(bo);
+ uint32_t width, height, format,
+ strides[4] = {0}, handles[4] = {0},
+ offsets[4] = {0}, flags = 0;
+ int ret = -1;
+
+ if (fb)
+ return fb;
+
+ fb = calloc(1, sizeof *fb);
+ fb->bo = bo;
+
+ width = gbm_bo_get_width(bo);
+ height = gbm_bo_get_height(bo);
+ format = gbm_bo_get_format(bo);
+
+ if (gbm_bo_get_modifier && gbm_bo_get_plane_count &&
+ gbm_bo_get_stride_for_plane && gbm_bo_get_offset) {
+
+ uint64_t modifiers[4] = {0};
+ modifiers[0] = gbm_bo_get_modifier(bo);
+ const int num_planes = gbm_bo_get_plane_count(bo);
+ for (int i = 0; i < num_planes; i++) {
+ strides[i] = gbm_bo_get_stride_for_plane(bo, i);
+ handles[i] = gbm_bo_get_handle(bo).u32;
+ offsets[i] = gbm_bo_get_offset(bo, i);
+ modifiers[i] = modifiers[0];
+ }
+
+ if (modifiers[0]) {
+ flags = DRM_MODE_FB_MODIFIERS;
+ DBG_PRINT("Using modifier %" PRIx64 "\n", modifiers[0]);
+ }
+
+ ret = drmModeAddFB2WithModifiers(drmFd, width, height,
+ format, handles, strides, offsets,
+ modifiers, &fb->fb_id, flags);
+ if(ret) {
+ ERR_PRINT("drmModeAddFB2WithModifiers failed!\n");
+ } else {
+ ERR_PRINT("drmModeAddFB2WithModifiers OK!\n");
+ }
+ }
+
+ if (ret) {
+ memcpy(handles, (uint32_t [4]){gbm_bo_get_handle(bo).u32,0,0,0}, 16);
+ memcpy(strides, (uint32_t [4]){gbm_bo_get_stride(bo),0,0,0}, 16);
+ memset(offsets, 0, 16);
+ ret = drmModeAddFB2(drmFd, width, height, format,
+ handles, strides, offsets, &fb->fb_id, 0);
+ if(ret) {
+ ERR_PRINT("drmModeAddFB2 failed!\n");
+ } else {
+ ERR_PRINT("drmModeAddFB2 OK!\n");
+ }
+ }
+
+ if (ret) {
+ ERR_PRINT("failed to create fb: %s\n", strerror(errno));
+ free(fb);
+ return NULL;
+ }
+
+ gbm_bo_set_user_data(bo, fb, drm_fb_destroy_callback);
+
+ return fb;
+}
+
+static DRM_FB * drm_fb_get_from_bo(int drmFd, struct gbm_bo *bo)
+{
+ DRM_FB *fb = gbm_bo_get_user_data(bo);
+ uint32_t width, height, stride, handle;
+ int ret;
+
+ if (fb) {
+ return fb;
+ }
+
+ fb = calloc(1, sizeof *fb);
+ fb->bo = bo;
+
+ width = gbm_bo_get_width(bo);
+ height = gbm_bo_get_height(bo);
+ stride = gbm_bo_get_stride(bo);
+ handle = gbm_bo_get_handle(bo).u32;
+
+ ret = drmModeAddFB(drmFd, width, height, 24, 32, stride, handle, &fb->fb_id);
+ if (ret) {
+ ERR_PRINT("failed to create fb: %s\n", strerror(errno));
+ free(fb);
+ return NULL;
+ } else {
+ ERR_PRINT("drmModeAddFB OK!\n");
+ }
+
+ gbm_bo_set_user_data(bo, fb, drm_fb_destroy_callback);
+
+ return fb;
+}
+
+// #define USE_SURFACELESS 1
+#ifdef USE_SURFACELESS
+ #warning Using KHR_SURFACELESS
+#endif /* USE_SURFACELESS */
+
+// #define USE_EGL_DEFAULT_DISPLAY 1
+#ifdef USE_EGL_DEFAULT_DISPLAY
+ #warning Using EGL_DEFAULT_DISPLAY causing issues with Mesa GBM
+#endif /* USE_EGL_DEFAULT_DISPLAY */
+
+#if defined(USE_EGL_DEFAULT_DISPLAY) && !defined(USE_SURFACELESS)
+ #error USE_EGL_DEFAULT_DISPLAY requires USE_SURFACELESS
+#endif
+
+int main(int argc, char *argv[])
+{
+ fd_set fds;
+ DRM_HANDLE *drm = NULL;
+ struct gbm_device * gbmDevice = NULL;
+ uint32_t visualID = GBM_FORMAT_XRGB8888;
+ struct gbm_surface *gbmSurface = NULL;
+ EGLDisplay eglDisplay = NULL;
+ EGLint major, minor;
+ EGLConfig eglConfig = NULL;
+ EGLSurface eglSurface = NULL;
+ EGLContext glContext = NULL;
+ struct gbm_bo *bo = NULL;
+ DRM_FB * fb = NULL;
+ uint32_t i = 0;
+ int ret;
+
+ static const EGLint context_attribs[] = {
+ EGL_CONTEXT_CLIENT_VERSION, 2,
+ EGL_NONE
+ };
+
+#ifdef USE_SURFACELESS
+ ERR_PRINT("Compiled _with__ USE_SURFACELESS\n");
+#else
+ ERR_PRINT("Compiled without USE_SURFACELESS\n");
+#endif /* USE_SURFACELESS */
+
+#ifdef USE_EGL_DEFAULT_DISPLAY
+ ERR_PRINT("Compiled _with__ USE_EGL_DEFAULT_DISPLAY\n");
+#else
+ ERR_PRINT("Compiled without USE_EGL_DEFAULT_DISPLAY\n");
+#endif /* USE_EGL_DEFAULT_DISPLAY */
+
+ drm = initDrm(1);
+ if (NULL == drm) {
+ ERR_PRINT("failed to initialize DRM\n");
+ return -1;
+ }
+
+ {
+ ERR_PRINT("JOGL SharedResource GL Scanning Emulation.START\n");
+
+#ifdef USE_EGL_DEFAULT_DISPLAY
+ eglDisplay = getPlatformEGLDisplay(EGL_DEFAULT_DISPLAY);
+#else /* USE_EGL_DEFAULT_DISPLAY */
+ gbmDevice = gbm_create_device(drm->fd);
+ if (NULL == gbmDevice) {
+ ERR_PRINT("failed to create GBM Device\n");
+ return -1;
+ }
+ eglDisplay = getPlatformEGLDisplay(gbmDevice);
+#endif /* USE_EGL_DEFAULT_DISPLAY */
+
+ if (!eglInitialize(eglDisplay, &major, &minor)) {
+ ERR_PRINT("failed to initialize\n");
+ return -1;
+ }
+
+ eglConfig = egl_choose_config(eglDisplay, visualID);
+ if (NULL == eglConfig) {
+ ERR_PRINT("failed to chose EGLConfig\n");
+ return ret;
+ }
+
+#ifndef USE_SURFACELESS
+ #ifdef USE_EGL_DEFAULT_DISPLAY
+ #error USE_EGL_DEFAULT_DISPLAY requires USE_SURFACELESS
+ #endif
+ gbmSurface = gbm_surface_create(gbmDevice,
+ drm->current_mode->hdisplay, drm->current_mode->vdisplay,
+ visualID, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
+ if (NULL == gbmSurface) {
+ ERR_PRINT("failed to create GBM Surface\n");
+ return -1;
+ }
+
+ eglSurface = eglCreateWindowSurface(eglDisplay, eglConfig, gbmSurface, NULL);
+ if (eglSurface == EGL_NO_SURFACE) {
+ ERR_PRINT("failed to create egl surface\n");
+ return -1;
+ }
+#endif /* USE_SURFACELESS */
+
+ if (!eglBindAPI(EGL_OPENGL_ES_API)) {
+ ERR_PRINT("failed to bind api EGL_OPENGL_ES_API\n");
+ return -1;
+ }
+ glContext = eglCreateContext(eglDisplay, eglConfig, EGL_NO_CONTEXT, context_attribs);
+ if (glContext == NULL) {
+ ERR_PRINT("failed to create glContext\n");
+ return -1;
+ }
+#ifndef USE_SURFACELESS
+ eglMakeCurrent(eglDisplay, eglSurface, eglSurface, glContext);
+#else /* USE_SURFACELESS */
+ eglMakeCurrent(eglDisplay, NULL, NULL, glContext);
+#endif /* USE_SURFACELESS */
+
+ ERR_PRINT("GL Version.0 \"%s\"\n", glGetString(GL_VERSION));
+ ERR_PRINT("GL Renderer.0 \"%s\"\n", glGetString(GL_RENDERER));
+
+ eglMakeCurrent(eglDisplay, NULL, NULL, NULL);
+ eglDestroyContext(eglDisplay, glContext);
+
+#ifndef USE_SURFACELESS
+ eglDestroySurface(eglDisplay, eglSurface);
+ gbm_surface_destroy(gbmSurface);
+#endif /* USE_SURFACELESS */
+
+ eglTerminate(eglDisplay);
+#ifndef USE_EGL_DEFAULT_DISPLAY
+ gbm_device_destroy(gbmDevice);
+#endif /* USE_EGL_DEFAULT_DISPLAY */
+
+ glContext = NULL;
+ eglConfig = NULL;
+ eglSurface = NULL;
+ gbmSurface = NULL;
+ eglDisplay = NULL;
+ gbmDevice = NULL;
+ ERR_PRINT("JOGL SharedResource GL Scanning Emulation.END\n");
+ }
+
+ FD_ZERO(&fds);
+ FD_SET(0, &fds);
+ FD_SET(drm->fd, &fds);
+
+ gbmDevice = gbm_create_device(drm->fd);
+ if (NULL == gbmDevice) {
+ ERR_PRINT("failed to create GBM Device\n");
+ return -1;
+ }
+
+ {
+ eglDisplay = getPlatformEGLDisplay(gbmDevice);
+
+ if (!eglInitialize(eglDisplay, &major, &minor)) {
+ ERR_PRINT("failed to initialize\n");
+ return -1;
+ }
+
+ ERR_PRINT("Using display %p with EGL version %d.%d\n",
+ eglDisplay, major, minor);
+
+ ERR_PRINT("EGL Version \"%s\"\n", eglQueryString(eglDisplay, EGL_VERSION));
+ ERR_PRINT("EGL Vendor \"%s\"\n", eglQueryString(eglDisplay, EGL_VENDOR));
+ // ERR_PRINT("EGL Extensions \"%s\"\n", eglQueryString(eglDisplay, EGL_EXTENSIONS));
+ }
+
+ eglConfig = egl_choose_config(eglDisplay, visualID);
+ if (NULL == eglConfig) {
+ ERR_PRINT("failed to chose EGLConfig\n");
+ return ret;
+ }
+
+ gbmSurface = gbm_surface_create(gbmDevice,
+ drm->current_mode->hdisplay, drm->current_mode->vdisplay,
+ visualID, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
+ if (NULL == gbmSurface) {
+ ERR_PRINT("failed to create GBM Surface\n");
+ return -1;
+ }
+
+ eglSurface = eglCreateWindowSurface(eglDisplay, eglConfig, gbmSurface, NULL);
+ if (eglSurface == EGL_NO_SURFACE) {
+ ERR_PRINT("failed to create egl surface\n");
+ return -1;
+ }
+
+ if (!eglBindAPI(EGL_OPENGL_ES_API)) {
+ ERR_PRINT("failed to bind api EGL_OPENGL_ES_API\n");
+ return -1;
+ }
+ glContext = eglCreateContext(eglDisplay, eglConfig, EGL_NO_CONTEXT, context_attribs);
+ if (glContext == NULL) {
+ ERR_PRINT("failed to create glContext\n");
+ return -1;
+ }
+
+ /* connect the glContext to the surface */
+ eglMakeCurrent(eglDisplay, eglSurface, eglSurface, glContext);
+
+ ERR_PRINT("GL Version \"%s\"\n", glGetString(GL_VERSION));
+ ERR_PRINT("GL Renderer \"%s\"\n", glGetString(GL_RENDERER));
+ // ERR_PRINT("GL Extensions: \"%s\"\n", glGetString(GL_EXTENSIONS));
+
+ /* clear the color buffer */
+ glClearColor(0.5, 0.5, 0.5, 1.0);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ eglSwapBuffers(eglDisplay, eglSurface);
+ bo = gbm_surface_lock_front_buffer(gbmSurface);
+ fb = drm_fb_get_from_bo(drm->fd, bo);
+ if (!fb) {
+ ERR_PRINT("Failed to get a new framebuffer BO\n");
+ return -1;
+ }
+ /* set mode: */
+ ret = drmModeSetCrtc(drm->fd, drm->encoder->crtc_id, fb->fb_id, 0, 0,
+ &drm->connector->connector_id, 1, drm->current_mode);
+ /**
+ int drmModeSetCrtc(int fd, uint32_t crtcId, uint32_t bufferId,
+ uint32_t x, uint32_t y, uint32_t *connectors, int count,
+ drmModeModeInfoPtr mode);
+ */
+
+ if (ret) {
+ ERR_PRINT("drmModeSetCrtc failed to set mode: fd %d, enc_id 0x%x, crtc_id 0x%x, fb_id 0x%x, conn_id 0x%x, curMode %s: %d %s\n",
+ drm->fd, drm->encoder->encoder_id, drm->encoder->crtc_id, fb->fb_id,
+ drm->connector->connector_id, drm->current_mode->name, ret, strerror(errno));
+ return -1;
+ }
+ DBG_PRINT( "drmModeSetCrtc OK bo %p, fd %d, enc_id 0x%x, crtc_id 0x%x, fb_id 0x%x, conn_id 0x%x, curMode %s\n",
+ bo,
+ drm->fd, drm->encoder->encoder_id, drm->encoder->crtc_id, fb->fb_id,
+ drm->connector->connector_id, drm->current_mode->name);
+
+ while (1) {
+ struct gbm_bo *next_bo;
+ int waiting_for_flip = 1;
+
+ if( ++i > 255 ) { i = 0; }
+ glClearColor(0.2f, 0.3f, (float)i/255.0f, 1.0f);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ eglSwapBuffers(eglDisplay, eglSurface);
+ next_bo = gbm_surface_lock_front_buffer(gbmSurface);
+ fb = drm_fb_get_from_bo(drm->fd, next_bo);
+ if (!fb) {
+ ERR_PRINT("Failed to get a new framebuffer next_bo\n");
+ return -1;
+ }
+
+ /*
+ * Here you could also update drm plane layers if you want
+ * hw composition
+ */
+ ret = drmModePageFlip(drm->fd, drm->encoder->crtc_id, fb->fb_id,
+ DRM_MODE_PAGE_FLIP_EVENT, &waiting_for_flip);
+ if (ret) {
+ ERR_PRINT("drmModePageFlip failed to queue page flip: fd %d, enc_id 0x%x, crtc_id 0x%x, fb_id 0x%x, conn_id 0x%x, curMode %s: %p -> %p: %d %s\n",
+ drm->fd, drm->encoder->encoder_id, drm->encoder->crtc_id, fb->fb_id,
+ drm->connector->connector_id, drm->current_mode->name,
+ bo, next_bo, ret, strerror(errno));
+ return -1;
+ }
+
+ while (waiting_for_flip) {
+ ret = select(drm->fd + 1, &fds, NULL, NULL, NULL);
+ if (ret < 0) {
+ ERR_PRINT("select err: %s\n", strerror(errno));
+ return ret;
+ } else if (ret == 0) {
+ ERR_PRINT("select timeout!\n");
+ return -1;
+ } else if (FD_ISSET(0, &fds)) {
+ ERR_PRINT("user interrupted!\n");
+ break;
+ }
+ drmHandleEvent(drm->fd, &drm_event_ctx);
+ }
+
+ /* release last buffer to render on again: */
+ gbm_surface_release_buffer(gbmSurface, bo);
+ bo = next_bo;
+ }
+
+ return ret;
+}
+
+
diff --git a/src/newt/native/make-drm_gbm_egl_test01.sh b/src/newt/native/make-drm_gbm_egl_test01.sh
new file mode 100644
index 000000000..3669ff970
--- /dev/null
+++ b/src/newt/native/make-drm_gbm_egl_test01.sh
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+rm -f drm_gbm_egl_test01
+
+# if defined(USE_EGL_DEFAULT_DISPLAY) && !defined(USE_SURFACELESS) -> ERROR
+# -DUSE_SURFACELESS \
+# -DUSE_EGL_DEFAULT_DISPLAY \
+#
+
+gcc \
+ -DUSE_SURFACELESS \
+ -I/usr/lib/jvm/java-11-openjdk-amd64/include/ \
+ -I/usr/lib/jvm/java-11-openjdk-amd64/include/linux/ \
+ -o drm_gbm_egl_test01 \
+ drm_gbm_egl_test01.c \
+ `pkg-config --cflags --libs libdrm` -lgbm -lEGL -lGLESv2
+