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Add GL/EGL extension loader generator

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This commit is contained in:
Scott Anderson 2017-10-08 13:19:25 +13:00
parent 543601e86c
commit c0e5feea37
9 changed files with 143 additions and 77 deletions
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61
render/egl.c
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@ -4,6 +4,7 @@
#include <stdlib.h>
#include <wlr/util/log.h>
#include <wlr/egl.h>
#include "render/glapi.h"
// Extension documentation
// https://www.khronos.org/registry/EGL/extensions/KHR/EGL_KHR_image_base.txt.
@ -46,27 +47,6 @@ const char *egl_error(void) {
}
}
static bool egl_exts(struct wlr_egl *egl) {
egl->get_platform_display = (PFNEGLGETPLATFORMDISPLAYEXTPROC)
eglGetProcAddress("eglGetPlatformDisplayEXT");
if (!egl->get_platform_display) {
wlr_log(L_ERROR, "Failed to load EGL extension 'eglGetPlatformDisplayEXT'");
return false;
}
egl->create_platform_window_surface = (PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC)
eglGetProcAddress("eglCreatePlatformWindowSurfaceEXT");
if (!egl->create_platform_window_surface) {
wlr_log(L_ERROR,
"Failed to load EGL extension 'eglCreatePlatformWindowSurfaceEXT'");
return false;
}
return true;
}
static bool egl_get_config(EGLDisplay disp, EGLConfig *out, EGLint visual_id) {
EGLint count = 0, matched = 0, ret;
@ -103,7 +83,7 @@ static bool egl_get_config(EGLDisplay disp, EGLConfig *out, EGLint visual_id) {
bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, EGLint visual_id,
void *remote_display) {
if (!egl_exts(egl)) {
if (!load_glapi()) {
return false;
}
@ -112,7 +92,7 @@ bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, EGLint visual_id,
goto error;
}
egl->display = egl->get_platform_display(platform, remote_display, NULL);
egl->display = eglGetPlatformDisplayEXT(platform, remote_display, NULL);
if (egl->display == EGL_NO_DISPLAY) {
wlr_log(L_ERROR, "Failed to create EGL display: %s", egl_error());
goto error;
@ -142,22 +122,11 @@ bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, EGLint visual_id,
eglMakeCurrent(egl->display, EGL_NO_SURFACE, EGL_NO_SURFACE, egl->context);
egl->egl_exts = eglQueryString(egl->display, EGL_EXTENSIONS);
if (strstr(egl->egl_exts, "EGL_WL_bind_wayland_display") == NULL ||
strstr(egl->egl_exts, "EGL_KHR_image_base") == NULL) {
strstr(egl->egl_exts, "EGL_KHR_image_base") == NULL) {
wlr_log(L_ERROR, "Required egl extensions not supported");
goto error;
}
egl->eglCreateImageKHR = (PFNEGLCREATEIMAGEKHRPROC)
eglGetProcAddress("eglCreateImageKHR");
egl->eglDestroyImageKHR = (PFNEGLDESTROYIMAGEKHRPROC)
eglGetProcAddress("eglDestroyImageKHR");
egl->eglQueryWaylandBufferWL = (PFNEGLQUERYWAYLANDBUFFERWL)
(void*) eglGetProcAddress("eglQueryWaylandBufferWL");
egl->eglBindWaylandDisplayWL = (PFNEGLBINDWAYLANDDISPLAYWL)
(void*) eglGetProcAddress("eglBindWaylandDisplayWL");
egl->eglUnbindWaylandDisplayWL = (PFNEGLUNBINDWAYLANDDISPLAYWL)
(void*) eglGetProcAddress("eglUnbindWaylandDisplayWL");
egl->gl_exts = (const char*) glGetString(GL_EXTENSIONS);
wlr_log(L_INFO, "Using EGL %d.%d", (int)major, (int)minor);
wlr_log(L_INFO, "Supported EGL extensions: %s", egl->egl_exts);
@ -174,8 +143,8 @@ error:
void wlr_egl_free(struct wlr_egl *egl) {
eglMakeCurrent(EGL_NO_DISPLAY, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
if (egl->wl_display && egl->eglUnbindWaylandDisplayWL) {
egl->eglUnbindWaylandDisplayWL(egl->display, egl->wl_display);
if (egl->wl_display && eglUnbindWaylandDisplayWL) {
eglUnbindWaylandDisplayWL(egl->display, egl->wl_display);
}
eglDestroyContext(egl->display, egl->context);
@ -184,11 +153,11 @@ void wlr_egl_free(struct wlr_egl *egl) {
}
bool wlr_egl_bind_display(struct wlr_egl *egl, struct wl_display *local_display) {
if (!egl->eglBindWaylandDisplayWL) {
if (!eglBindWaylandDisplayWL) {
return false;
}
if (egl->eglBindWaylandDisplayWL(egl->display, local_display)) {
if (eglBindWaylandDisplayWL(egl->display, local_display)) {
egl->wl_display = local_display;
return true;
}
@ -198,33 +167,33 @@ bool wlr_egl_bind_display(struct wlr_egl *egl, struct wl_display *local_display)
bool wlr_egl_query_buffer(struct wlr_egl *egl, struct wl_resource *buf,
int attrib, int *value) {
if (!egl->eglQueryWaylandBufferWL) {
if (!eglQueryWaylandBufferWL) {
return false;
}
return egl->eglQueryWaylandBufferWL(egl->display, buf, attrib, value);
return eglQueryWaylandBufferWL(egl->display, buf, attrib, value);
}
EGLImage wlr_egl_create_image(struct wlr_egl *egl, EGLenum target,
EGLClientBuffer buffer, const EGLint *attribs) {
if (!egl->eglCreateImageKHR) {
if (!eglCreateImageKHR) {
return false;
}
return egl->eglCreateImageKHR(egl->display, egl->context, target,
return eglCreateImageKHR(egl->display, egl->context, target,
buffer, attribs);
}
bool wlr_egl_destroy_image(struct wlr_egl *egl, EGLImage image) {
if (!egl->eglDestroyImageKHR) {
if (!eglDestroyImageKHR) {
return false;
}
egl->eglDestroyImageKHR(egl->display, image);
eglDestroyImageKHR(egl->display, image);
return true;
}
EGLSurface wlr_egl_create_surface(struct wlr_egl *egl, void *window) {
EGLSurface surf = egl->create_platform_window_surface(egl->display, egl->config,
EGLSurface surf = eglCreatePlatformWindowSurfaceEXT(egl->display, egl->config,
window, NULL);
if (surf == EGL_NO_SURFACE) {
wlr_log(L_ERROR, "Failed to create EGL surface: %s", egl_error());