+/*
+ * Copyright (C) 2015-2016 Gerd Hoffmann <kraxel@redhat.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
#include "qemu/osdep.h"
-#include <glob.h>
-
+#include "qemu/drm.h"
+#include "qemu/error-report.h"
+#include "ui/console.h"
#include "ui/egl-helpers.h"
EGLDisplay *qemu_egl_display;
EGLConfig qemu_egl_config;
+DisplayGLMode qemu_egl_mode;
+
+/* ------------------------------------------------------------------ */
+
+static void egl_fb_delete_texture(egl_fb *fb)
+{
+ if (!fb->delete_texture) {
+ return;
+ }
+
+ glDeleteTextures(1, &fb->texture);
+ fb->delete_texture = false;
+}
+
+void egl_fb_destroy(egl_fb *fb)
+{
+ if (!fb->framebuffer) {
+ return;
+ }
+
+ egl_fb_delete_texture(fb);
+ glDeleteFramebuffers(1, &fb->framebuffer);
+
+ fb->width = 0;
+ fb->height = 0;
+ fb->texture = 0;
+ fb->framebuffer = 0;
+}
+
+void egl_fb_setup_default(egl_fb *fb, int width, int height)
+{
+ fb->width = width;
+ fb->height = height;
+ fb->framebuffer = 0; /* default framebuffer */
+}
+
+void egl_fb_setup_for_tex(egl_fb *fb, int width, int height,
+ GLuint texture, bool delete)
+{
+ egl_fb_delete_texture(fb);
+
+ fb->width = width;
+ fb->height = height;
+ fb->texture = texture;
+ fb->delete_texture = delete;
+ if (!fb->framebuffer) {
+ glGenFramebuffers(1, &fb->framebuffer);
+ }
+
+ glBindFramebuffer(GL_FRAMEBUFFER_EXT, fb->framebuffer);
+ glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
+ GL_TEXTURE_2D, fb->texture, 0);
+}
+
+void egl_fb_setup_new_tex(egl_fb *fb, int width, int height)
+{
+ GLuint texture;
+
+ glGenTextures(1, &texture);
+ glBindTexture(GL_TEXTURE_2D, texture);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height,
+ 0, GL_BGRA, GL_UNSIGNED_BYTE, 0);
+
+ egl_fb_setup_for_tex(fb, width, height, texture, true);
+}
+
+void egl_fb_blit(egl_fb *dst, egl_fb *src, bool flip)
+{
+ GLuint y1, y2;
+
+ glBindFramebuffer(GL_READ_FRAMEBUFFER, src->framebuffer);
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, dst->framebuffer);
+ glViewport(0, 0, dst->width, dst->height);
+ y1 = flip ? src->height : 0;
+ y2 = flip ? 0 : src->height;
+ glBlitFramebuffer(0, y1, src->width, y2,
+ 0, 0, dst->width, dst->height,
+ GL_COLOR_BUFFER_BIT, GL_LINEAR);
+}
+
+void egl_fb_read(void *dst, egl_fb *src)
+{
+ glBindFramebuffer(GL_READ_FRAMEBUFFER, src->framebuffer);
+ glReadBuffer(GL_COLOR_ATTACHMENT0_EXT);
+ glReadPixels(0, 0, src->width, src->height,
+ GL_BGRA, GL_UNSIGNED_BYTE, dst);
+}
+
+void egl_texture_blit(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip)
+{
+ glBindFramebuffer(GL_FRAMEBUFFER_EXT, dst->framebuffer);
+ glViewport(0, 0, dst->width, dst->height);
+ glEnable(GL_TEXTURE_2D);
+ glBindTexture(GL_TEXTURE_2D, src->texture);
+ qemu_gl_run_texture_blit(gls, flip);
+}
+
+void egl_texture_blend(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip,
+ int x, int y, double scale_x, double scale_y)
+{
+ glBindFramebuffer(GL_FRAMEBUFFER_EXT, dst->framebuffer);
+ int w = scale_x * src->width;
+ int h = scale_y * src->height;
+ if (flip) {
+ glViewport(x, y, w, h);
+ } else {
+ glViewport(x, dst->height - h - y, w, h);
+ }
+ glEnable(GL_TEXTURE_2D);
+ glBindTexture(GL_TEXTURE_2D, src->texture);
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ qemu_gl_run_texture_blit(gls, flip);
+ glDisable(GL_BLEND);
+}
/* ---------------------------------------------------------------------- */
-static bool egl_gles;
-static int egl_debug;
+#ifdef CONFIG_OPENGL_DMABUF
+
+int qemu_egl_rn_fd;
+struct gbm_device *qemu_egl_rn_gbm_dev;
+EGLContext qemu_egl_rn_ctx;
+
+int egl_rendernode_init(const char *rendernode, DisplayGLMode mode)
+{
+ qemu_egl_rn_fd = -1;
+ int rc;
+
+ qemu_egl_rn_fd = qemu_drm_rendernode_open(rendernode);
+ if (qemu_egl_rn_fd == -1) {
+ error_report("egl: no drm render node available");
+ goto err;
+ }
-#define egl_dbg(_x ...) \
- do { \
- if (egl_debug) { \
- fprintf(stderr, "egl: " _x); \
- } \
- } while (0);
+ qemu_egl_rn_gbm_dev = gbm_create_device(qemu_egl_rn_fd);
+ if (!qemu_egl_rn_gbm_dev) {
+ error_report("egl: gbm_create_device failed");
+ goto err;
+ }
+
+ rc = qemu_egl_init_dpy_mesa((EGLNativeDisplayType)qemu_egl_rn_gbm_dev,
+ mode);
+ if (rc != 0) {
+ /* qemu_egl_init_dpy_mesa reports error */
+ goto err;
+ }
+
+ if (!epoxy_has_egl_extension(qemu_egl_display,
+ "EGL_KHR_surfaceless_context")) {
+ error_report("egl: EGL_KHR_surfaceless_context not supported");
+ goto err;
+ }
+ if (!epoxy_has_egl_extension(qemu_egl_display,
+ "EGL_MESA_image_dma_buf_export")) {
+ error_report("egl: EGL_MESA_image_dma_buf_export not supported");
+ goto err;
+ }
+
+ qemu_egl_rn_ctx = qemu_egl_init_ctx();
+ if (!qemu_egl_rn_ctx) {
+ error_report("egl: egl_init_ctx failed");
+ goto err;
+ }
+
+ return 0;
+
+err:
+ if (qemu_egl_rn_gbm_dev) {
+ gbm_device_destroy(qemu_egl_rn_gbm_dev);
+ }
+ if (qemu_egl_rn_fd != -1) {
+ close(qemu_egl_rn_fd);
+ }
+
+ return -1;
+}
+
+int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc)
+{
+ EGLImageKHR image;
+ EGLint num_planes, fd;
+
+ image = eglCreateImageKHR(qemu_egl_display, eglGetCurrentContext(),
+ EGL_GL_TEXTURE_2D_KHR,
+ (EGLClientBuffer)(unsigned long)tex_id,
+ NULL);
+ if (!image) {
+ return -1;
+ }
+
+ eglExportDMABUFImageQueryMESA(qemu_egl_display, image, fourcc,
+ &num_planes, NULL);
+ if (num_planes != 1) {
+ eglDestroyImageKHR(qemu_egl_display, image);
+ return -1;
+ }
+ eglExportDMABUFImageMESA(qemu_egl_display, image, &fd, stride, NULL);
+ eglDestroyImageKHR(qemu_egl_display, image);
+
+ return fd;
+}
+
+void egl_dmabuf_import_texture(QemuDmaBuf *dmabuf)
+{
+ EGLImageKHR image = EGL_NO_IMAGE_KHR;
+ EGLint attrs[] = {
+ EGL_DMA_BUF_PLANE0_FD_EXT, dmabuf->fd,
+ EGL_DMA_BUF_PLANE0_PITCH_EXT, dmabuf->stride,
+ EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0,
+ EGL_WIDTH, dmabuf->width,
+ EGL_HEIGHT, dmabuf->height,
+ EGL_LINUX_DRM_FOURCC_EXT, dmabuf->fourcc,
+ EGL_NONE, /* end of list */
+ };
+
+ if (dmabuf->texture != 0) {
+ return;
+ }
+
+ image = eglCreateImageKHR(qemu_egl_display,
+ EGL_NO_CONTEXT,
+ EGL_LINUX_DMA_BUF_EXT,
+ NULL, attrs);
+ if (image == EGL_NO_IMAGE_KHR) {
+ error_report("eglCreateImageKHR failed");
+ return;
+ }
+
+ glGenTextures(1, &dmabuf->texture);
+ glBindTexture(GL_TEXTURE_2D, dmabuf->texture);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+ glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)image);
+ eglDestroyImageKHR(qemu_egl_display, image);
+}
+
+void egl_dmabuf_release_texture(QemuDmaBuf *dmabuf)
+{
+ if (dmabuf->texture == 0) {
+ return;
+ }
+
+ glDeleteTextures(1, &dmabuf->texture);
+ dmabuf->texture = 0;
+}
+
+#endif /* CONFIG_OPENGL_DMABUF */
/* ---------------------------------------------------------------------- */
-EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, Window win)
+EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, EGLNativeWindowType win)
{
EGLSurface esurface;
EGLBoolean b;
- egl_dbg("eglCreateWindowSurface (x11 win id 0x%lx) ...\n",
- (unsigned long) win);
esurface = eglCreateWindowSurface(qemu_egl_display,
qemu_egl_config,
- (EGLNativeWindowType)win, NULL);
+ win, NULL);
if (esurface == EGL_NO_SURFACE) {
- fprintf(stderr, "egl: eglCreateWindowSurface failed\n");
+ error_report("egl: eglCreateWindowSurface failed");
return NULL;
}
b = eglMakeCurrent(qemu_egl_display, esurface, esurface, ectx);
if (b == EGL_FALSE) {
- fprintf(stderr, "egl: eglMakeCurrent failed\n");
+ error_report("egl: eglMakeCurrent failed");
return NULL;
}
/* ---------------------------------------------------------------------- */
-int qemu_egl_init_dpy(EGLNativeDisplayType dpy, bool gles, bool debug)
+/*
+ * Taken from glamor_egl.h from the Xorg xserver, which is MIT licensed
+ *
+ * Create an EGLDisplay from a native display type. This is a little quirky
+ * for a few reasons.
+ *
+ * 1: GetPlatformDisplayEXT and GetPlatformDisplay are the API you want to
+ * use, but have different function signatures in the third argument; this
+ * happens not to matter for us, at the moment, but it means epoxy won't alias
+ * them together.
+ *
+ * 2: epoxy 1.3 and earlier don't understand EGL client extensions, which
+ * means you can't call "eglGetPlatformDisplayEXT" directly, as the resolver
+ * will crash.
+ *
+ * 3: You can't tell whether you have EGL 1.5 at this point, because
+ * eglQueryString(EGL_VERSION) is a property of the display, which we don't
+ * have yet. So you have to query for extensions no matter what. Fortunately
+ * epoxy_has_egl_extension _does_ let you query for client extensions, so
+ * we don't have to write our own extension string parsing.
+ *
+ * 4. There is no EGL_KHR_platform_base to complement the EXT one, thus one
+ * needs to know EGL 1.5 is supported in order to use the eglGetPlatformDisplay
+ * function pointer.
+ * We can workaround this (circular dependency) by probing for the EGL 1.5
+ * platform extensions (EGL_KHR_platform_gbm and friends) yet it doesn't seem
+ * like mesa will be able to advertise these (even though it can do EGL 1.5).
+ */
+static EGLDisplay qemu_egl_get_display(EGLNativeDisplayType native,
+ EGLenum platform)
{
- static const EGLint conf_att_gl[] = {
+ EGLDisplay dpy = EGL_NO_DISPLAY;
+
+ /* In practise any EGL 1.5 implementation would support the EXT extension */
+ if (epoxy_has_egl_extension(NULL, "EGL_EXT_platform_base")) {
+ PFNEGLGETPLATFORMDISPLAYEXTPROC getPlatformDisplayEXT =
+ (void *) eglGetProcAddress("eglGetPlatformDisplayEXT");
+ if (getPlatformDisplayEXT && platform != 0) {
+ dpy = getPlatformDisplayEXT(platform, native, NULL);
+ }
+ }
+
+ if (dpy == EGL_NO_DISPLAY) {
+ /* fallback */
+ dpy = eglGetDisplay(native);
+ }
+ return dpy;
+}
+
+static int qemu_egl_init_dpy(EGLNativeDisplayType dpy,
+ EGLenum platform,
+ DisplayGLMode mode)
+{
+ static const EGLint conf_att_core[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_RED_SIZE, 5,
EGLint major, minor;
EGLBoolean b;
EGLint n;
+ bool gles = (mode == DISPLAYGL_MODE_ES);
- if (debug) {
- egl_debug = 1;
- setenv("EGL_LOG_LEVEL", "debug", true);
- setenv("LIBGL_DEBUG", "verbose", true);
- }
-
- egl_dbg("eglGetDisplay (dpy %p) ...\n", dpy);
- qemu_egl_display = eglGetDisplay(dpy);
+ qemu_egl_display = qemu_egl_get_display(dpy, platform);
if (qemu_egl_display == EGL_NO_DISPLAY) {
- fprintf(stderr, "egl: eglGetDisplay failed\n");
+ error_report("egl: eglGetDisplay failed");
return -1;
}
- egl_dbg("eglInitialize ...\n");
b = eglInitialize(qemu_egl_display, &major, &minor);
if (b == EGL_FALSE) {
- fprintf(stderr, "egl: eglInitialize failed\n");
+ error_report("egl: eglInitialize failed");
return -1;
}
- egl_dbg("eglBindAPI ...\n");
- b = eglBindAPI(gles ? EGL_OPENGL_ES_API : EGL_OPENGL_API);
+ b = eglBindAPI(gles ? EGL_OPENGL_ES_API : EGL_OPENGL_API);
if (b == EGL_FALSE) {
- fprintf(stderr, "egl: eglBindAPI failed\n");
+ error_report("egl: eglBindAPI failed (%s mode)",
+ gles ? "gles" : "core");
return -1;
}
- egl_dbg("eglChooseConfig ...\n");
b = eglChooseConfig(qemu_egl_display,
- gles ? conf_att_gles : conf_att_gl,
+ gles ? conf_att_gles : conf_att_core,
&qemu_egl_config, 1, &n);
if (b == EGL_FALSE || n != 1) {
- fprintf(stderr, "egl: eglChooseConfig failed\n");
+ error_report("egl: eglChooseConfig failed (%s mode)",
+ gles ? "gles" : "core");
return -1;
}
- egl_gles = gles;
+ qemu_egl_mode = gles ? DISPLAYGL_MODE_ES : DISPLAYGL_MODE_CORE;
return 0;
}
+int qemu_egl_init_dpy_x11(EGLNativeDisplayType dpy, DisplayGLMode mode)
+{
+#ifdef EGL_KHR_platform_x11
+ return qemu_egl_init_dpy(dpy, EGL_PLATFORM_X11_KHR, mode);
+#else
+ return qemu_egl_init_dpy(dpy, 0, mode);
+#endif
+}
+
+int qemu_egl_init_dpy_mesa(EGLNativeDisplayType dpy, DisplayGLMode mode)
+{
+#ifdef EGL_MESA_platform_gbm
+ return qemu_egl_init_dpy(dpy, EGL_PLATFORM_GBM_MESA, mode);
+#else
+ return qemu_egl_init_dpy(dpy, 0, mode);
+#endif
+}
+
EGLContext qemu_egl_init_ctx(void)
{
- static const EGLint ctx_att_gl[] = {
+ static const EGLint ctx_att_core[] = {
+ EGL_CONTEXT_OPENGL_PROFILE_MASK, EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT,
EGL_NONE
};
static const EGLint ctx_att_gles[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
-
+ bool gles = (qemu_egl_mode == DISPLAYGL_MODE_ES);
EGLContext ectx;
EGLBoolean b;
- egl_dbg("eglCreateContext ...\n");
ectx = eglCreateContext(qemu_egl_display, qemu_egl_config, EGL_NO_CONTEXT,
- egl_gles ? ctx_att_gles : ctx_att_gl);
+ gles ? ctx_att_gles : ctx_att_core);
if (ectx == EGL_NO_CONTEXT) {
- fprintf(stderr, "egl: eglCreateContext failed\n");
+ error_report("egl: eglCreateContext failed");
return NULL;
}
b = eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, ectx);
if (b == EGL_FALSE) {
- fprintf(stderr, "egl: eglMakeCurrent failed\n");
+ error_report("egl: eglMakeCurrent failed");
return NULL;
}
projects / mirror_qemu.git / blobdiff