diff --git a/Makefile b/Makefile
index 74ff9bff..d9ce7357 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
CC = cc
LD = cc
-REAL_CFLAGS = -I./include $(shell pkg-config --cflags dri gbm libdrm glesv2 egl) -D_GNU_SOURCE -DBUILD_ELM327PLUGIN $(CFLAGS)
+REAL_CFLAGS = -I./include $(shell pkg-config --cflags dri gbm libdrm glesv2 egl) -DBUILD_ELM327PLUGIN $(CFLAGS)
REAL_LDFLAGS = $(shell pkg-config --libs dri gbm libdrm glesv2 egl) -lrt -lflutter_engine -lpthread -ldl $(LDFLAGS)
SOURCES = src/flutter-pi.c src/platformchannel.c src/pluginregistry.c src/plugins/elm327plugin.c src/plugins/services-plugin.c src/plugins/testplugin.c
diff --git a/src/flutter-pi.c b/src/flutter-pi.c
index c3d863c5..3e2c594c 100644
--- a/src/flutter-pi.c
+++ b/src/flutter-pi.c
@@ -64,7 +64,8 @@ uint32_t refresh_rate;
double pixel_ratio = 0.0;
struct {
- char device[128];
+ char device[PATH_MAX];
+ bool has_device;
int fd;
uint32_t connector_id;
drmModeModeInfo *mode;
@@ -89,6 +90,7 @@ struct {
EGLSurface surface;
bool modifiers_supported;
+ char *renderer;
EGLDisplay (*eglGetPlatformDisplayEXT)(EGLenum platform, void *native_display, const EGLint *attrib_list);
EGLSurface (*eglCreatePlatformWindowSurfaceEXT)(EGLDisplay dpy, EGLConfig config, void *native_window, const EGLint *attrib_list);
@@ -135,7 +137,7 @@ pthread_cond_t task_added = PTHREAD_COND_INITIALIZER;
/*********************
* FLUTTER CALLBACKS *
*********************/
-bool make_current(void* userdata) {
+bool make_current(void* userdata) {
if (eglMakeCurrent(egl.display, egl.surface, egl.surface, egl.context) != EGL_TRUE) {
fprintf(stderr, "make_current: could not make the context current.\n");
return false;
@@ -143,7 +145,7 @@ bool make_current(void* userdata) {
return true;
}
-bool clear_current(void* userdata) {
+bool clear_current(void* userdata) {
if (eglMakeCurrent(egl.display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT) != EGL_TRUE) {
fprintf(stderr, "clear_current: could not clear the current context.\n");
return false;
@@ -151,11 +153,11 @@ bool clear_current(void* userdata) {
return true;
}
-void page_flip_handler(int fd, unsigned int frame, unsigned int sec, unsigned int usec, void *data) {
+void page_flip_handler(int fd, unsigned int frame, unsigned int sec, unsigned int usec, void *data) {
int *waiting_for_flip = data;
*waiting_for_flip = 0;
}
-void drm_fb_destroy_callback(struct gbm_bo *bo, void *data) {
+void drm_fb_destroy_callback(struct gbm_bo *bo, void *data) {
struct drm_fb *fb = data;
if (fb->fb_id)
@@ -163,7 +165,7 @@ void drm_fb_destroy_callback(struct gbm_bo *bo, void *data) {
free(fb);
}
-struct drm_fb* drm_fb_get_from_bo(struct gbm_bo *bo) {
+struct drm_fb *drm_fb_get_from_bo(struct gbm_bo *bo) {
uint32_t width, height, format, strides[4] = {0}, handles[4] = {0}, offsets[4] = {0}, flags = 0;
int ok = -1;
@@ -220,7 +222,7 @@ struct drm_fb* drm_fb_get_from_bo(struct gbm_bo *bo) {
return fb;
}
-bool present(void* userdata) {
+bool present(void* userdata) {
fd_set fds;
struct gbm_bo *next_bo;
struct drm_fb *fb;
@@ -270,12 +272,12 @@ bool present(void* userdata) {
return true;
}
-uint32_t fbo_callback(void* userdata) {
+uint32_t fbo_callback(void* userdata) {
return 0;
}
-void cut_word_from_string(char* string, char* word) {
+void cut_word_from_string(char* string, char* word) {
size_t word_length = strlen(word);
- char* word_in_str = strstr(string, word);
+ char* word_in_str = strstr(string, word);
// check if the given word is surrounded by spaces in the string
if (word_in_str
@@ -290,112 +292,123 @@ void cut_word_from_string(char* string, char* word) {
} while (word_in_str[i++ + word_length] != 0);
}
}
-const GLubyte *hacked_glGetString(GLenum name) {
- if (name == GL_EXTENSIONS) {
- static GLubyte* extensions;
+const GLubyte *hacked_glGetString(GLenum name) {
+ static GLubyte *extensions = NULL;
- if (extensions == NULL) {
- GLubyte* orig_extensions = (GLubyte *) glGetString(GL_EXTENSIONS);
- size_t len_orig_extensions = strlen(orig_extensions);
-
- extensions = malloc(len_orig_extensions+1);
- strcpy(extensions, orig_extensions);
-
- /*
- * working (apparently)
- */
- //cut_word_from_string(extensions, "GL_EXT_blend_minmax");
- //cut_word_from_string(extensions, "GL_EXT_multi_draw_arrays");
- //cut_word_from_string(extensions, "GL_EXT_texture_format_BGRA8888");
- //cut_word_from_string(extensions, "GL_OES_compressed_ETC1_RGB8_texture");
- //cut_word_from_string(extensions, "GL_OES_depth24");
- //cut_word_from_string(extensions, "GL_OES_texture_npot");
- //cut_word_from_string(extensions, "GL_OES_vertex_half_float");
- //cut_word_from_string(extensions, "GL_OES_EGL_image");
- //cut_word_from_string(extensions, "GL_OES_depth_texture");
- //cut_word_from_string(extensions, "GL_AMD_performance_monitor");
- //cut_word_from_string(extensions, "GL_OES_EGL_image_external");
- //cut_word_from_string(extensions, "GL_EXT_occlusion_query_boolean");
- //cut_word_from_string(extensions, "GL_KHR_texture_compression_astc_ldr");
- //cut_word_from_string(extensions, "GL_EXT_compressed_ETC1_RGB8_sub_texture");
- //cut_word_from_string(extensions, "GL_EXT_draw_elements_base_vertex");
- //cut_word_from_string(extensions, "GL_EXT_texture_border_clamp");
- //cut_word_from_string(extensions, "GL_OES_draw_elements_base_vertex");
- //cut_word_from_string(extensions, "GL_OES_texture_border_clamp");
- //cut_word_from_string(extensions, "GL_KHR_texture_compression_astc_sliced_3d");
- //cut_word_from_string(extensions, "GL_MESA_tile_raster_order");
-
- /*
- * should be working, but isn't
- */
- cut_word_from_string(extensions, "GL_EXT_map_buffer_range");
-
- /*
- * definitely broken
- */
- cut_word_from_string(extensions, "GL_OES_element_index_uint");
- cut_word_from_string(extensions, "GL_OES_fbo_render_mipmap");
- cut_word_from_string(extensions, "GL_OES_mapbuffer");
- cut_word_from_string(extensions, "GL_OES_rgb8_rgba8");
- cut_word_from_string(extensions, "GL_OES_stencil8");
- cut_word_from_string(extensions, "GL_OES_texture_3D");
- cut_word_from_string(extensions, "GL_OES_packed_depth_stencil");
- cut_word_from_string(extensions, "GL_OES_get_program_binary");
- cut_word_from_string(extensions, "GL_APPLE_texture_max_level");
- cut_word_from_string(extensions, "GL_EXT_discard_framebuffer");
- cut_word_from_string(extensions, "GL_EXT_read_format_bgra");
- cut_word_from_string(extensions, "GL_EXT_frag_depth");
- cut_word_from_string(extensions, "GL_NV_fbo_color_attachments");
- cut_word_from_string(extensions, "GL_OES_EGL_sync");
- cut_word_from_string(extensions, "GL_OES_vertex_array_object");
- cut_word_from_string(extensions, "GL_EXT_unpack_subimage");
- cut_word_from_string(extensions, "GL_NV_draw_buffers");
- cut_word_from_string(extensions, "GL_NV_read_buffer");
- cut_word_from_string(extensions, "GL_NV_read_depth");
- cut_word_from_string(extensions, "GL_NV_read_depth_stencil");
- cut_word_from_string(extensions, "GL_NV_read_stencil");
- cut_word_from_string(extensions, "GL_EXT_draw_buffers");
- cut_word_from_string(extensions, "GL_KHR_debug");
- cut_word_from_string(extensions, "GL_OES_required_internalformat");
- cut_word_from_string(extensions, "GL_OES_surfaceless_context");
- cut_word_from_string(extensions, "GL_EXT_separate_shader_objects");
- cut_word_from_string(extensions, "GL_KHR_context_flush_control");
- cut_word_from_string(extensions, "GL_KHR_no_error");
- cut_word_from_string(extensions, "GL_KHR_parallel_shader_compile");
+ if (name != GL_EXTENSIONS)
+ return glGetString(name);
+
+ if (extensions == NULL) {
+ GLubyte *orig_extensions = (GLubyte *) glGetString(GL_EXTENSIONS);
+
+ extensions = malloc(strlen(orig_extensions) + 1);
+ if (!extensions) {
+ fprintf(stderr, "Could not allocate memory for modified GL_EXTENSIONS string\n");
+ return NULL;
}
- return extensions;
- } else {
- return glGetString(name);
+ strcpy(extensions, orig_extensions);
+
+ /*
+ * working (apparently)
+ */
+ //cut_word_from_string(extensions, "GL_EXT_blend_minmax");
+ //cut_word_from_string(extensions, "GL_EXT_multi_draw_arrays");
+ //cut_word_from_string(extensions, "GL_EXT_texture_format_BGRA8888");
+ //cut_word_from_string(extensions, "GL_OES_compressed_ETC1_RGB8_texture");
+ //cut_word_from_string(extensions, "GL_OES_depth24");
+ //cut_word_from_string(extensions, "GL_OES_texture_npot");
+ //cut_word_from_string(extensions, "GL_OES_vertex_half_float");
+ //cut_word_from_string(extensions, "GL_OES_EGL_image");
+ //cut_word_from_string(extensions, "GL_OES_depth_texture");
+ //cut_word_from_string(extensions, "GL_AMD_performance_monitor");
+ //cut_word_from_string(extensions, "GL_OES_EGL_image_external");
+ //cut_word_from_string(extensions, "GL_EXT_occlusion_query_boolean");
+ //cut_word_from_string(extensions, "GL_KHR_texture_compression_astc_ldr");
+ //cut_word_from_string(extensions, "GL_EXT_compressed_ETC1_RGB8_sub_texture");
+ //cut_word_from_string(extensions, "GL_EXT_draw_elements_base_vertex");
+ //cut_word_from_string(extensions, "GL_EXT_texture_border_clamp");
+ //cut_word_from_string(extensions, "GL_OES_draw_elements_base_vertex");
+ //cut_word_from_string(extensions, "GL_OES_texture_border_clamp");
+ //cut_word_from_string(extensions, "GL_KHR_texture_compression_astc_sliced_3d");
+ //cut_word_from_string(extensions, "GL_MESA_tile_raster_order");
+
+ /*
+ * should be working, but isn't
+ */
+ cut_word_from_string(extensions, "GL_EXT_map_buffer_range");
+
+ /*
+ * definitely broken
+ */
+ cut_word_from_string(extensions, "GL_OES_element_index_uint");
+ cut_word_from_string(extensions, "GL_OES_fbo_render_mipmap");
+ cut_word_from_string(extensions, "GL_OES_mapbuffer");
+ cut_word_from_string(extensions, "GL_OES_rgb8_rgba8");
+ cut_word_from_string(extensions, "GL_OES_stencil8");
+ cut_word_from_string(extensions, "GL_OES_texture_3D");
+ cut_word_from_string(extensions, "GL_OES_packed_depth_stencil");
+ cut_word_from_string(extensions, "GL_OES_get_program_binary");
+ cut_word_from_string(extensions, "GL_APPLE_texture_max_level");
+ cut_word_from_string(extensions, "GL_EXT_discard_framebuffer");
+ cut_word_from_string(extensions, "GL_EXT_read_format_bgra");
+ cut_word_from_string(extensions, "GL_EXT_frag_depth");
+ cut_word_from_string(extensions, "GL_NV_fbo_color_attachments");
+ cut_word_from_string(extensions, "GL_OES_EGL_sync");
+ cut_word_from_string(extensions, "GL_OES_vertex_array_object");
+ cut_word_from_string(extensions, "GL_EXT_unpack_subimage");
+ cut_word_from_string(extensions, "GL_NV_draw_buffers");
+ cut_word_from_string(extensions, "GL_NV_read_buffer");
+ cut_word_from_string(extensions, "GL_NV_read_depth");
+ cut_word_from_string(extensions, "GL_NV_read_depth_stencil");
+ cut_word_from_string(extensions, "GL_NV_read_stencil");
+ cut_word_from_string(extensions, "GL_EXT_draw_buffers");
+ cut_word_from_string(extensions, "GL_KHR_debug");
+ cut_word_from_string(extensions, "GL_OES_required_internalformat");
+ cut_word_from_string(extensions, "GL_OES_surfaceless_context");
+ cut_word_from_string(extensions, "GL_EXT_separate_shader_objects");
+ cut_word_from_string(extensions, "GL_KHR_context_flush_control");
+ cut_word_from_string(extensions, "GL_KHR_no_error");
+ cut_word_from_string(extensions, "GL_KHR_parallel_shader_compile");
}
+
+ return extensions;
}
-void *proc_resolver(void* userdata, const char* name) {
- if (name == NULL) return NULL;
+void *proc_resolver(void* userdata, const char* name) {
+ static int is_VC4 = -1;
+ void *address;
/*
- * The mesa v3d driver reports some OpenGL ES extensions as supported and working
+ * The mesa V3D driver reports some OpenGL ES extensions as supported and working
* even though they aren't. hacked_glGetString is a workaround for this, which will
* cut out the non-working extensions from the list of supported extensions.
- */
- if (strcmp(name, "glGetString") == 0) {
+ */
+
+ if (name == NULL)
+ return NULL;
+
+ // first detect if we're running on a VideoCore 4 / using the VC4 driver.
+ if ((is_VC4 == -1) && (is_VC4 = strcmp(egl.renderer, "VC4 V3D 2.1") == 0))
+ printf( "detected VideoCore IV as underlying graphics chip, and VC4 as the driver.\n"
+ "Reporting modified GL_EXTENSIONS string that doesn't contain non-working extensions.\n");
+
+ // if we do, and the symbol to resolve is glGetString, we return our hacked_glGetString.
+ if (is_VC4 && (strcmp(name, "glGetString") == 0))
return hacked_glGetString;
- }
- void* address;
- if ((address = dlsym(RTLD_DEFAULT, name)) || (address = eglGetProcAddress(name))) {
+ if ((address = dlsym(RTLD_DEFAULT, name)) || (address = eglGetProcAddress(name)))
return address;
- }
- printf("could not resolve symbol %s\n", name);
+ fprintf(stderr, "proc_resolver: could not resolve symbol \"%s\"\n", name);
return NULL;
}
-void on_platform_message(const FlutterPlatformMessage* message, void* userdata) {
+void on_platform_message(const FlutterPlatformMessage* message, void* userdata) {
int ok;
if ((ok = PluginRegistry_onPlatformMessage((FlutterPlatformMessage *)message)) != 0)
fprintf(stderr, "PluginRegistry_onPlatformMessage failed: %s\n", strerror(ok));
}
-void vsync_callback(void* userdata, intptr_t baton) {
+void vsync_callback(void* userdata, intptr_t baton) {
// not yet implemented
fprintf(stderr, "flutter vsync callback not yet implemented\n");
}
@@ -405,10 +418,8 @@ void vsync_callback(void* userdata, intptr_t baton) {
/************************
* PLATFORM TASK-RUNNER *
************************/
-void handle_sigusr1(int _) {}
bool init_message_loop() {
platform_thread_id = pthread_self();
-
return true;
}
bool message_loop(void) {
@@ -494,7 +505,7 @@ bool setup_paths(void) {
return false;
}
- snprintf(drm.device, sizeof(drm.device), "/dev/dri/card0");
+ //snprintf(drm.device, sizeof(drm.device), "/dev/dri/card0");
return true;
@@ -511,22 +522,110 @@ bool init_display(void) {
drmModeEncoder *encoder;
int i, ok, area;
+ if (!drm.has_device) {
+ printf("Finding a suitable DRM device, since none is given...\n");
+ drmDevicePtr devices[64] = { NULL };
+ int num_devices, fd = -1;
+
+ num_devices = drmGetDevices2(0, devices, sizeof(devices)/sizeof(drmDevicePtr));
+ if (num_devices < 0) {
+ fprintf(stderr, "could not query drm device list: %s\n", strerror(-num_devices));
+ return false;
+ }
+
+ printf("looking for a suitable DRM device from %d available DRM devices...\n", num_devices);
+ for (i = 0; i < num_devices; i++) {
+ drmDevicePtr device = devices[i];
+
+ printf(" devices[%d]: \n", i);
+
+ printf(" available nodes: ");
+ if (device->available_nodes & (1 << DRM_NODE_PRIMARY)) printf("DRM_NODE_PRIMARY, ");
+ if (device->available_nodes & (1 << DRM_NODE_CONTROL)) printf("DRM_NODE_CONTROL, ");
+ if (device->available_nodes & (1 << DRM_NODE_RENDER)) printf("DRM_NODE_RENDER");
+ printf("\n");
+
+ for (int j=0; j < DRM_NODE_MAX; j++) {
+ if (device->available_nodes & (1 << j)) {
+ printf(" nodes[%s] = \"%s\"\n",
+ j == DRM_NODE_PRIMARY ? "DRM_NODE_PRIMARY" :
+ j == DRM_NODE_CONTROL ? "DRM_NODE_CONTROL" :
+ j == DRM_NODE_RENDER ? "DRM_NODE_RENDER" : "unknown",
+ device->nodes[j]
+ );
+ }
+ }
- printf("Opening DRM device...\n");
- drm.fd = open(drm.device, O_RDWR);
- if (drm.fd < 0) {
- fprintf(stderr, "Could not open DRM device\n");
- return false;
+ printf(" bustype: %s\n",
+ device->bustype == DRM_BUS_PCI ? "DRM_BUS_PCI" :
+ device->bustype == DRM_BUS_USB ? "DRM_BUS_USB" :
+ device->bustype == DRM_BUS_PLATFORM ? "DRM_BUS_PLATFORM" :
+ device->bustype == DRM_BUS_HOST1X ? "DRM_BUS_HOST1X" :
+ "unknown"
+ );
+
+ if (device->bustype == DRM_BUS_PLATFORM) {
+ printf(" businfo.fullname: %s\n", device->businfo.platform->fullname);
+ // seems like deviceinfo.platform->compatible is not really used.
+ //printf(" deviceinfo.compatible: %s\n", device->deviceinfo.platform->compatible);
+ }
+
+ // we want a device that's DRM_NODE_PRIMARY and that we can call a drmModeGetResources on.
+ if (drm.has_device) continue;
+ if (!(device->available_nodes & (1 << DRM_NODE_PRIMARY))) continue;
+
+ printf(" opening DRM device candidate at \"%s\"...\n", device->nodes[DRM_NODE_PRIMARY]);
+ fd = open(device->nodes[DRM_NODE_PRIMARY], O_RDWR);
+ if (fd < 0) {
+ printf(" could not open DRM device candidate at \"%s\": %s\n", device->nodes[DRM_NODE_PRIMARY], strerror(errno));
+ continue;
+ }
+
+ printf(" getting resources of DRM device candidate at \"%s\"...\n", device->nodes[DRM_NODE_PRIMARY]);
+ resources = drmModeGetResources(fd);
+ if (resources == NULL) {
+ printf(" could not query DRM resources for DRM device candidate at \"%s\":", device->nodes[DRM_NODE_PRIMARY]);
+ if ((errno = EOPNOTSUPP) || (errno = EINVAL)) printf("doesn't look like a modeset device.\n");
+ else printf("%s\n", strerror(errno));
+ close(fd);
+ continue;
+ }
+
+ // we found our DRM device.
+ printf(" flutter-pi chose \"%s\" as its DRM device.\n", device->nodes[DRM_NODE_PRIMARY]);
+ drm.fd = fd;
+ drm.has_device = true;
+ snprintf(drm.device, sizeof(drm.device)-1, device->nodes[DRM_NODE_PRIMARY]);
+ }
+
+ if (!drm.has_device) {
+ fprintf(stderr, "flutter-pi couldn't find a usable DRM device.\n"
+ "Please make sure you've enabled the Fake-KMS driver in raspi-config.\n"
+ "If you're not using a Raspberry Pi, please make sure there's KMS support for your graphics chip.\n");
+ return false;
+ }
}
+ if (drm.fd <= 0) {
+ printf("Opening DRM device...\n");
+ drm.fd = open(drm.device, O_RDWR);
+ if (drm.fd < 0) {
+ fprintf(stderr, "Could not open DRM device\n");
+ return false;
+ }
+ }
- printf("Getting DRM resources...\n");
- resources = drmModeGetResources(drm.fd);
- if (resources == NULL) {
- if (errno == EOPNOTSUPP) fprintf(stderr, "%s doesn't look like a modeset device\n", drm.device);
- else fprintf(stderr, "drmModeGetResources failed: %s\n", strerror(errno));
-
- return false;
+ if (!resources) {
+ printf("Getting DRM resources...\n");
+ resources = drmModeGetResources(drm.fd);
+ if (resources == NULL) {
+ if ((errno == EOPNOTSUPP) || (errno = EINVAL))
+ fprintf(stderr, "%s doesn't look like a modeset device\n", drm.device);
+ else
+ fprintf(stderr, "drmModeGetResources failed: %s\n", strerror(errno));
+
+ return false;
+ }
}
@@ -577,6 +676,7 @@ bool init_display(void) {
}
printf("Choosing DRM mode from %d available modes...\n", connector->count_modes);
+ bool found_preferred = false;
for (i = 0, area = 0; i < connector->count_modes; i++) {
drmModeModeInfo *current_mode = &connector->modes[i];
@@ -586,6 +686,8 @@ bool init_display(void) {
current_mode->vrefresh, current_mode->type, current_mode->flags
);
+ if (found_preferred) continue;
+
// we choose the highest resolution with the highest refresh rate, preferably non-interlaced (= progressive) here.
int current_area = current_mode->hdisplay * current_mode->vdisplay;
if (( current_area > area) ||
@@ -601,11 +703,12 @@ bool init_display(void) {
// if the preferred DRM mode is bogus, we're screwed.
if (current_mode->type & DRM_MODE_TYPE_PREFERRED) {
- printf("the chosen DRM mode is preferred by DRM. (DRM_MODE_TYPE_PREFERRED)\n");
- break;
+ printf(" this mode is preferred by DRM. (DRM_MODE_TYPE_PREFERRED)\n");
+ found_preferred = true;
}
}
}
+
if (!drm.mode) {
fprintf(stderr, "could not find a suitable DRM mode!\n");
return false;
@@ -659,13 +762,14 @@ bool init_display(void) {
gbm.device = gbm_create_device(drm.fd);
gbm.format = DRM_FORMAT_XRGB8888;
gbm.surface = NULL;
+ gbm.modifier = DRM_FORMAT_MOD_LINEAR;
if (gbm_surface_create_with_modifiers) {
gbm.surface = gbm_surface_create_with_modifiers(gbm.device, width, height, gbm.format, &gbm.modifier, 1);
}
if (!gbm.surface) {
- if (gbm.modifier != 0) {
+ if (gbm.modifier != DRM_FORMAT_MOD_LINEAR) {
fprintf(stderr, "GBM Surface creation modifiers requested but not supported by GBM\n");
return false;
}
@@ -689,7 +793,12 @@ bool init_display(void) {
const EGLint config_attribs[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
+ EGL_RED_SIZE, 1,
+ EGL_GREEN_SIZE, 1,
+ EGL_BLUE_SIZE, 1,
+ EGL_ALPHA_SIZE, 0,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
+ EGL_SAMPLES, 0,
EGL_NONE
};
@@ -799,9 +908,11 @@ bool init_display(void) {
return false;
}
+ egl.renderer = (char*) glGetString(GL_RENDERER);
+
gl_exts = (char*) glGetString(GL_EXTENSIONS);
printf("===================================\n");
- printf("OpenGL ES 2.x information:\n");
+ printf("OpenGL ES information:\n");
printf(" version: \"%s\"\n", glGetString(GL_VERSION));
printf(" shading language version: \"%s\"\n", glGetString(GL_SHADING_LANGUAGE_VERSION));
printf(" vendor: \"%s\"\n", glGetString(GL_VENDOR));
@@ -809,6 +920,8 @@ bool init_display(void) {
printf(" extensions: \"%s\"\n", gl_exts);
printf("===================================\n");
+
+
drm.evctx.version = 2;
drm.evctx.page_flip_handler = page_flip_handler;