mirror of
https://gitlab.freedesktop.org/wlroots/wlroots.git
synced 2024-10-30 15:40:45 +00:00
482 lines
13 KiB
C
482 lines
13 KiB
C
#include <assert.h>
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#include <stdio.h>
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include <stdlib.h>
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#include <wlr/render/egl.h>
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#include <wlr/util/log.h>
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#include "glapi.h"
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// Extension documentation
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// https://www.khronos.org/registry/EGL/extensions/KHR/EGL_KHR_image_base.txt.
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// https://cgit.freedesktop.org/mesa/mesa/tree/docs/specs/WL_bind_wayland_display.spec
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static bool egl_get_config(EGLDisplay disp, EGLint *attribs, EGLConfig *out,
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EGLint visual_id) {
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EGLint count = 0, matched = 0, ret;
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ret = eglGetConfigs(disp, NULL, 0, &count);
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if (ret == EGL_FALSE || count == 0) {
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wlr_log(L_ERROR, "eglGetConfigs returned no configs");
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return false;
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}
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EGLConfig configs[count];
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ret = eglChooseConfig(disp, attribs, configs, count, &matched);
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if (ret == EGL_FALSE) {
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wlr_log(L_ERROR, "eglChooseConfig failed");
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return false;
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}
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for (int i = 0; i < matched; ++i) {
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EGLint visual;
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if (!eglGetConfigAttrib(disp, configs[i],
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EGL_NATIVE_VISUAL_ID, &visual)) {
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continue;
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}
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if (!visual_id || visual == visual_id) {
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*out = configs[i];
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return true;
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}
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}
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wlr_log(L_ERROR, "no valid egl config found");
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return false;
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}
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static log_importance_t egl_log_importance_to_wlr(EGLint type) {
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switch (type) {
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case EGL_DEBUG_MSG_CRITICAL_KHR: return L_ERROR;
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case EGL_DEBUG_MSG_ERROR_KHR: return L_ERROR;
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case EGL_DEBUG_MSG_WARN_KHR: return L_ERROR;
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case EGL_DEBUG_MSG_INFO_KHR: return L_INFO;
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default: return L_INFO;
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}
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}
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static void egl_log(EGLenum error, const char *command, EGLint msg_type,
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EGLLabelKHR thread, EGLLabelKHR obj, const char *msg) {
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_wlr_log(egl_log_importance_to_wlr(msg_type), "[EGL] %s: %s", command, msg);
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}
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static bool check_egl_ext(const char *egl_exts, const char *ext) {
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size_t extlen = strlen(ext);
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const char *end = egl_exts + strlen(egl_exts);
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while (egl_exts < end) {
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if (*egl_exts == ' ') {
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egl_exts++;
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continue;
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}
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size_t n = strcspn(egl_exts, " ");
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if (n == extlen && strncmp(ext, egl_exts, n) == 0) {
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return true;
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}
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egl_exts += n;
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}
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return false;
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}
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static void print_dmabuf_formats(struct wlr_egl *egl) {
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/* Avoid log msg if extension is not present */
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if (!egl->egl_exts.dmabuf_import_modifiers) {
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return;
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}
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int *formats;
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int num = wlr_egl_get_dmabuf_formats(egl, &formats);
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if (num < 0) {
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return;
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}
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char str_formats[num * 5 + 1];
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for (int i = 0; i < num; i++) {
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snprintf(&str_formats[i*5], (num - i) * 5 + 1, "%.4s ", (char*)&formats[i]);
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}
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wlr_log(L_INFO, "Supported dmabuf buffer formats: %s", str_formats);
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free(formats);
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}
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bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, void *remote_display,
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EGLint *config_attribs, EGLint visual_id) {
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if (!load_glapi()) {
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return false;
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}
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if (eglDebugMessageControlKHR) {
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static const EGLAttrib debug_attribs[] = {
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EGL_DEBUG_MSG_CRITICAL_KHR, EGL_TRUE,
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EGL_DEBUG_MSG_ERROR_KHR, EGL_TRUE,
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EGL_DEBUG_MSG_WARN_KHR, EGL_TRUE,
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EGL_DEBUG_MSG_INFO_KHR, EGL_TRUE,
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EGL_NONE,
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};
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eglDebugMessageControlKHR(egl_log, debug_attribs);
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}
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if (eglBindAPI(EGL_OPENGL_ES_API) == EGL_FALSE) {
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wlr_log(L_ERROR, "Failed to bind to the OpenGL ES API");
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goto error;
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}
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if (platform == EGL_PLATFORM_SURFACELESS_MESA) {
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assert(remote_display == NULL);
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egl->display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
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} else {
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egl->display = eglGetPlatformDisplayEXT(platform, remote_display, NULL);
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}
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if (egl->display == EGL_NO_DISPLAY) {
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wlr_log(L_ERROR, "Failed to create EGL display");
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goto error;
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}
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EGLint major, minor;
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if (eglInitialize(egl->display, &major, &minor) == EGL_FALSE) {
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wlr_log(L_ERROR, "Failed to initialize EGL");
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goto error;
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}
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if (!egl_get_config(egl->display, config_attribs, &egl->config, visual_id)) {
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wlr_log(L_ERROR, "Failed to get EGL config");
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goto error;
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}
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static const EGLint attribs[] = {EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE};
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egl->context = eglCreateContext(egl->display, egl->config,
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EGL_NO_CONTEXT, attribs);
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if (egl->context == EGL_NO_CONTEXT) {
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wlr_log(L_ERROR, "Failed to create EGL context");
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goto error;
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}
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eglMakeCurrent(egl->display, EGL_NO_SURFACE, EGL_NO_SURFACE, egl->context);
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egl->exts_str = eglQueryString(egl->display, EGL_EXTENSIONS);
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wlr_log(L_INFO, "Using EGL %d.%d", (int)major, (int)minor);
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wlr_log(L_INFO, "Supported EGL extensions: %s", egl->exts_str);
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wlr_log(L_INFO, "EGL vendor: %s", eglQueryString(egl->display, EGL_VENDOR));
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if (!check_egl_ext(egl->exts_str, "EGL_WL_bind_wayland_display") ||
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!check_egl_ext(egl->exts_str, "EGL_KHR_image_base")) {
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wlr_log(L_ERROR, "Required egl extensions not supported");
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goto error;
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}
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egl->egl_exts.buffer_age =
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check_egl_ext(egl->exts_str, "EGL_EXT_buffer_age");
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egl->egl_exts.swap_buffers_with_damage =
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check_egl_ext(egl->exts_str, "EGL_EXT_swap_buffers_with_damage") ||
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check_egl_ext(egl->exts_str, "EGL_KHR_swap_buffers_with_damage");
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egl->egl_exts.dmabuf_import =
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check_egl_ext(egl->exts_str, "EGL_EXT_image_dma_buf_import");
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egl->egl_exts.dmabuf_import_modifiers =
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check_egl_ext(egl->exts_str, "EGL_EXT_image_dma_buf_import_modifiers")
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&& eglQueryDmaBufFormatsEXT && eglQueryDmaBufModifiersEXT;
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print_dmabuf_formats(egl);
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return true;
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error:
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eglMakeCurrent(EGL_NO_DISPLAY, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
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if (egl->display) {
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eglTerminate(egl->display);
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}
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eglReleaseThread();
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return false;
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}
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void wlr_egl_finish(struct wlr_egl *egl) {
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if (egl == NULL) {
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return;
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}
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eglMakeCurrent(EGL_NO_DISPLAY, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
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if (egl->wl_display && eglUnbindWaylandDisplayWL) {
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eglUnbindWaylandDisplayWL(egl->display, egl->wl_display);
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}
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eglDestroyContext(egl->display, egl->context);
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eglTerminate(egl->display);
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eglReleaseThread();
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}
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bool wlr_egl_bind_display(struct wlr_egl *egl, struct wl_display *local_display) {
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if (!eglBindWaylandDisplayWL) {
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return false;
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}
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if (eglBindWaylandDisplayWL(egl->display, local_display)) {
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egl->wl_display = local_display;
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return true;
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}
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return false;
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}
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bool wlr_egl_query_buffer(struct wlr_egl *egl, struct wl_resource *buf,
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int attrib, int *value) {
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if (!eglQueryWaylandBufferWL) {
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return false;
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}
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return eglQueryWaylandBufferWL(egl->display, buf, attrib, value);
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}
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EGLImage wlr_egl_create_image(struct wlr_egl *egl, EGLenum target,
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EGLClientBuffer buffer, const EGLint *attribs) {
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if (!eglCreateImageKHR) {
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return NULL;
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}
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return eglCreateImageKHR(egl->display, egl->context, target,
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buffer, attribs);
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}
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bool wlr_egl_destroy_image(struct wlr_egl *egl, EGLImage image) {
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if (!eglDestroyImageKHR) {
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return false;
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}
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eglDestroyImageKHR(egl->display, image);
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return true;
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}
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EGLSurface wlr_egl_create_surface(struct wlr_egl *egl, void *window) {
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EGLSurface surf = eglCreatePlatformWindowSurfaceEXT(egl->display, egl->config,
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window, NULL);
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if (surf == EGL_NO_SURFACE) {
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wlr_log(L_ERROR, "Failed to create EGL surface");
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return EGL_NO_SURFACE;
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}
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return surf;
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}
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int wlr_egl_get_buffer_age(struct wlr_egl *egl, EGLSurface surface) {
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if (!egl->egl_exts.buffer_age) {
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return -1;
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}
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EGLint buffer_age;
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EGLBoolean ok = eglQuerySurface(egl->display, surface,
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EGL_BUFFER_AGE_EXT, &buffer_age);
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if (!ok) {
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wlr_log(L_ERROR, "Failed to get EGL surface buffer age");
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return -1;
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}
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return buffer_age;
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}
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bool wlr_egl_make_current(struct wlr_egl *egl, EGLSurface surface,
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int *buffer_age) {
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if (!eglMakeCurrent(egl->display, surface, surface, egl->context)) {
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wlr_log(L_ERROR, "eglMakeCurrent failed");
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return false;
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}
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if (buffer_age != NULL) {
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*buffer_age = wlr_egl_get_buffer_age(egl, surface);
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}
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return true;
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}
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bool wlr_egl_swap_buffers(struct wlr_egl *egl, EGLSurface surface,
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pixman_region32_t *damage) {
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EGLBoolean ret;
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if (damage != NULL && egl->egl_exts.swap_buffers_with_damage) {
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int nrects;
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pixman_box32_t *rects =
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pixman_region32_rectangles(damage, &nrects);
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EGLint egl_damage[4 * nrects];
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for (int i = 0; i < nrects; ++i) {
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egl_damage[4*i] = rects[i].x1;
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egl_damage[4*i + 1] = rects[i].y1;
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egl_damage[4*i + 2] = rects[i].x2 - rects[i].x1;
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egl_damage[4*i + 3] = rects[i].y2 - rects[i].y1;
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}
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assert(eglSwapBuffersWithDamageEXT || eglSwapBuffersWithDamageKHR);
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if (eglSwapBuffersWithDamageEXT) {
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ret = eglSwapBuffersWithDamageEXT(egl->display, surface, egl_damage,
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nrects);
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} else {
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ret = eglSwapBuffersWithDamageKHR(egl->display, surface, egl_damage,
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nrects);
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}
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} else {
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ret = eglSwapBuffers(egl->display, surface);
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}
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if (!ret) {
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wlr_log(L_ERROR, "eglSwapBuffers failed");
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return false;
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}
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return true;
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}
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EGLImage wlr_egl_create_image_from_dmabuf(struct wlr_egl *egl,
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struct wlr_dmabuf_buffer_attribs *attributes) {
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bool has_modifier = false;
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if (attributes->modifier[0] != DRM_FORMAT_MOD_INVALID) {
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if (!egl->egl_exts.dmabuf_import_modifiers) {
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return NULL;
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}
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has_modifier = true;
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}
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unsigned int atti = 0;
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EGLint attribs[50];
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attribs[atti++] = EGL_WIDTH;
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attribs[atti++] = attributes->width;
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attribs[atti++] = EGL_HEIGHT;
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attribs[atti++] = attributes->height;
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attribs[atti++] = EGL_LINUX_DRM_FOURCC_EXT;
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attribs[atti++] = attributes->format;
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struct {
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EGLint fd;
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EGLint offset;
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EGLint pitch;
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EGLint mod_lo;
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EGLint mod_hi;
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} attr_names[WLR_LINUX_DMABUF_MAX_PLANES] = {
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{
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EGL_DMA_BUF_PLANE0_FD_EXT,
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EGL_DMA_BUF_PLANE0_OFFSET_EXT,
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EGL_DMA_BUF_PLANE0_PITCH_EXT,
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EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT,
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EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT
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}, {
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EGL_DMA_BUF_PLANE1_FD_EXT,
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EGL_DMA_BUF_PLANE1_OFFSET_EXT,
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EGL_DMA_BUF_PLANE1_PITCH_EXT,
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EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT,
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EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT
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}, {
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EGL_DMA_BUF_PLANE2_FD_EXT,
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EGL_DMA_BUF_PLANE2_OFFSET_EXT,
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EGL_DMA_BUF_PLANE2_PITCH_EXT,
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EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT,
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EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT
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}, {
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EGL_DMA_BUF_PLANE3_FD_EXT,
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EGL_DMA_BUF_PLANE3_OFFSET_EXT,
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EGL_DMA_BUF_PLANE3_PITCH_EXT,
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EGL_DMA_BUF_PLANE3_MODIFIER_LO_EXT,
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EGL_DMA_BUF_PLANE3_MODIFIER_HI_EXT
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}
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};
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for (int i=0; i < attributes->n_planes; i++) {
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attribs[atti++] = attr_names[i].fd;
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attribs[atti++] = attributes->fd[i];
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attribs[atti++] = attr_names[i].offset;
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attribs[atti++] = attributes->offset[i];
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attribs[atti++] = attr_names[i].pitch;
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attribs[atti++] = attributes->stride[i];
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if (has_modifier) {
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attribs[atti++] = attr_names[i].mod_lo;
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attribs[atti++] = attributes->modifier[i] & 0xFFFFFFFF;
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attribs[atti++] = attr_names[i].mod_hi;
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attribs[atti++] = attributes->modifier[i] >> 32;
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}
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}
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attribs[atti++] = EGL_NONE;
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assert(atti < sizeof(attribs)/sizeof(attribs[0]));
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return eglCreateImageKHR(egl->display, EGL_NO_CONTEXT,
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EGL_LINUX_DMA_BUF_EXT, NULL, attribs);
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}
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#ifndef DRM_FORMAT_BIG_ENDIAN
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# define DRM_FORMAT_BIG_ENDIAN 0x80000000
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#endif
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bool wlr_egl_check_import_dmabuf(struct wlr_egl *egl,
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struct wlr_dmabuf_buffer *dmabuf) {
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switch (dmabuf->attributes.format & ~DRM_FORMAT_BIG_ENDIAN) {
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/* TODO: YUV based formats not yet supported, require multiple
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* wlr_create_image_from_dmabuf */
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case WL_SHM_FORMAT_YUYV:
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case WL_SHM_FORMAT_YVYU:
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case WL_SHM_FORMAT_UYVY:
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case WL_SHM_FORMAT_VYUY:
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case WL_SHM_FORMAT_AYUV:
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return false;
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default:
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break;
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}
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EGLImage egl_image = wlr_egl_create_image_from_dmabuf(egl,
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&dmabuf->attributes);
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if (egl_image) {
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/* We can import the image, good. No need to keep it
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since wlr_texture_upload_dmabuf will import it again */
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wlr_egl_destroy_image(egl, egl_image);
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return true;
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}
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/* TODO: import yuv dmabufs */
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return false;
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}
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int wlr_egl_get_dmabuf_formats(struct wlr_egl *egl,
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int **formats) {
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if (!egl->egl_exts.dmabuf_import ||
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!egl->egl_exts.dmabuf_import_modifiers) {
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wlr_log(L_DEBUG, "dmabuf extension not present");
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return -1;
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}
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EGLint num;
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if (!eglQueryDmaBufFormatsEXT(egl->display, 0, NULL, &num)) {
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wlr_log(L_ERROR, "failed to query number of dmabuf formats");
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return -1;
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}
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*formats = calloc(num, sizeof(int));
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if (*formats == NULL) {
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wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
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return -1;
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}
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if (!eglQueryDmaBufFormatsEXT(egl->display, num, *formats, &num)) {
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wlr_log(L_ERROR, "failed to query dmabuf format");
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free(*formats);
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return -1;
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}
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return num;
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}
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int wlr_egl_get_dmabuf_modifiers(struct wlr_egl *egl,
|
|
int format, uint64_t **modifiers) {
|
|
if (!egl->egl_exts.dmabuf_import ||
|
|
!egl->egl_exts.dmabuf_import_modifiers) {
|
|
wlr_log(L_ERROR, "dmabuf extension not present");
|
|
return -1;
|
|
}
|
|
|
|
EGLint num;
|
|
if (!eglQueryDmaBufModifiersEXT(egl->display, format, 0,
|
|
NULL, NULL, &num)) {
|
|
wlr_log(L_ERROR, "failed to query dmabuf number of modifiers");
|
|
return -1;
|
|
}
|
|
|
|
*modifiers = calloc(num, sizeof(uint64_t));
|
|
if (*modifiers == NULL) {
|
|
wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
if (!eglQueryDmaBufModifiersEXT(egl->display, format, num,
|
|
*modifiers, NULL, &num)) {
|
|
wlr_log(L_ERROR, "failed to query dmabuf modifiers");
|
|
free(*modifiers);
|
|
return -1;
|
|
}
|
|
return num;
|
|
}
|