Merge remote-tracking branch 'remotes/kraxel/tags/pull-ui-20160108-1' into staging

sdl2/opengl: add opengl context and scanout support
ui/curses: Fix color attribute of monitor for curses

# gpg: Signature made Fri 08 Jan 2016 12:42:02 GMT using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-ui-20160108-1:
  sdl2/opengl: add opengl context and scanout support
  ui/curses: Fix color attribute of monitor for curses

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

8 files changed, 239 insertions, 63 deletions

diff --git a/hw/display/jazz_led.c b/hw/display/jazz_led.c
index 12b1707cb2..1ea49b7389 100644
--- a/hw/display/jazz_led.c
+++ b/hw/display/jazz_led.c
@@ -233,8 +233,10 @@ static void jazz_led_text_update(void *opaque, console_ch_t *chardata)
 
     /* TODO: draw the segments */
     snprintf(buf, 2, "%02hhx\n", s->segments);
-    console_write_ch(chardata++, 0x00200100 | buf[0]);
-    console_write_ch(chardata++, 0x00200100 | buf[1]);
+    console_write_ch(chardata++, ATTR2CHTYPE(buf[0], QEMU_COLOR_BLUE,
+                                             QEMU_COLOR_BLACK, 1));
+    console_write_ch(chardata++, ATTR2CHTYPE(buf[1], QEMU_COLOR_BLUE,
+                                             QEMU_COLOR_BLACK, 1));
 
     dpy_text_update(s->con, 0, 0, 2, 1);
 }
diff --git a/hw/display/vga.c b/hw/display/vga.c
index 9f6839488b..84ce0af562 100644
--- a/hw/display/vga.c
+++ b/hw/display/vga.c
@@ -1979,7 +1979,8 @@ static void vga_update_text(void *opaque, console_ch_t *chardata)
     width = (s->last_width - size) / 2;
     dst = chardata + s->last_width + width;
     for (i = 0; i < size; i ++)
-        console_write_ch(dst ++, 0x00200100 | msg_buffer[i]);
+        console_write_ch(dst ++, ATTR2CHTYPE(msg_buffer[i], QEMU_COLOR_BLUE,
+                                             QEMU_COLOR_BLACK, 1));
 
     dpy_text_update(s->con, 0, 0, s->last_width, height);
 }
diff --git a/include/ui/console.h b/include/ui/console.h
index c249db4f7c..adac36dd52 100644
--- a/include/ui/console.h
+++ b/include/ui/console.h
@@ -30,6 +30,21 @@
 #define GUI_REFRESH_INTERVAL_DEFAULT    30
 #define GUI_REFRESH_INTERVAL_IDLE     3000
 
+/* Color number is match to standard vga palette */
+enum qemu_color_names {
+    QEMU_COLOR_BLACK   = 0,
+    QEMU_COLOR_BLUE    = 1,
+    QEMU_COLOR_GREEN   = 2,
+    QEMU_COLOR_CYAN    = 3,
+    QEMU_COLOR_RED     = 4,
+    QEMU_COLOR_MAGENTA = 5,
+    QEMU_COLOR_YELLOW  = 6,
+    QEMU_COLOR_WHITE   = 7
+};
+/* Convert to curses char attributes */
+#define ATTR2CHTYPE(c, fg, bg, bold) \
+    ((bold) << 21 | (bg) << 11 | (fg) << 8 | (c))
+
 typedef void QEMUPutKBDEvent(void *opaque, int keycode);
 typedef void QEMUPutLEDEvent(void *opaque, int ledstate);
 typedef void QEMUPutMouseEvent(void *opaque, int dx, int dy, int dz, int buttons_state);
diff --git a/include/ui/sdl2.h b/include/ui/sdl2.h
index 2fdad8f300..b7ac38f198 100644
--- a/include/ui/sdl2.h
+++ b/include/ui/sdl2.h
@@ -15,12 +15,18 @@ struct sdl2_console {
     SDL_Renderer *real_renderer;
     int idx;
     int last_vm_running; /* per console for caption reasons */
-    int x, y;
+    int x, y, w, h;
     int hidden;
     int opengl;
     int updates;
     SDL_GLContext winctx;
+#ifdef CONFIG_OPENGL
     ConsoleGLState *gls;
+    GLuint tex_id;
+    GLuint fbo_id;
+    bool y0_top;
+    bool scanout_mode;
+#endif
 };
 
 void sdl2_window_create(struct sdl2_console *scon);
@@ -48,4 +54,18 @@ void sdl2_gl_switch(DisplayChangeListener *dcl,
 void sdl2_gl_refresh(DisplayChangeListener *dcl);
 void sdl2_gl_redraw(struct sdl2_console *scon);
 
+QEMUGLContext sdl2_gl_create_context(DisplayChangeListener *dcl,
+                                     QEMUGLParams *params);
+void sdl2_gl_destroy_context(DisplayChangeListener *dcl, QEMUGLContext ctx);
+int sdl2_gl_make_context_current(DisplayChangeListener *dcl,
+                                 QEMUGLContext ctx);
+QEMUGLContext sdl2_gl_get_current_context(DisplayChangeListener *dcl);
+
+void sdl2_gl_scanout(DisplayChangeListener *dcl,
+                     uint32_t backing_id, bool backing_y_0_top,
+                     uint32_t x, uint32_t y,
+                     uint32_t w, uint32_t h);
+void sdl2_gl_scanout_flush(DisplayChangeListener *dcl,
+                           uint32_t x, uint32_t y, uint32_t w, uint32_t h);
+
 #endif /* SDL2_H */
diff --git a/ui/console.c b/ui/console.c
index 27a2cdc009..4b65c34672 100644
--- a/ui/console.c
+++ b/ui/console.c
@@ -376,42 +376,29 @@ static void vga_bitblt(QemuConsole *con,
 
 #include "vgafont.h"
 
-#ifndef CONFIG_CURSES
-enum color_names {
-    COLOR_BLACK   = 0,
-    COLOR_RED     = 1,
-    COLOR_GREEN   = 2,
-    COLOR_YELLOW  = 3,
-    COLOR_BLUE    = 4,
-    COLOR_MAGENTA = 5,
-    COLOR_CYAN    = 6,
-    COLOR_WHITE   = 7
-};
-#endif
-
 #define QEMU_RGB(r, g, b)                                               \
     { .red = r << 8, .green = g << 8, .blue = b << 8, .alpha = 0xffff }
 
 static const pixman_color_t color_table_rgb[2][8] = {
     {   /* dark */
-        QEMU_RGB(0x00, 0x00, 0x00),  /* black */
-        QEMU_RGB(0xaa, 0x00, 0x00),  /* red */
-        QEMU_RGB(0x00, 0xaa, 0x00),  /* green */
-        QEMU_RGB(0xaa, 0xaa, 0x00),  /* yellow */
-        QEMU_RGB(0x00, 0x00, 0xaa),  /* blue */
-        QEMU_RGB(0xaa, 0x00, 0xaa),  /* magenta */
-        QEMU_RGB(0x00, 0xaa, 0xaa),  /* cyan */
-        QEMU_RGB(0xaa, 0xaa, 0xaa),  /* white */
+        [QEMU_COLOR_BLACK]   = QEMU_RGB(0x00, 0x00, 0x00),  /* black */
+        [QEMU_COLOR_BLUE]    = QEMU_RGB(0x00, 0x00, 0xaa),  /* blue */
+        [QEMU_COLOR_GREEN]   = QEMU_RGB(0x00, 0xaa, 0x00),  /* green */
+        [QEMU_COLOR_CYAN]    = QEMU_RGB(0x00, 0xaa, 0xaa),  /* cyan */
+        [QEMU_COLOR_RED]     = QEMU_RGB(0xaa, 0x00, 0x00),  /* red */
+        [QEMU_COLOR_MAGENTA] = QEMU_RGB(0xaa, 0x00, 0xaa),  /* magenta */
+        [QEMU_COLOR_YELLOW]  = QEMU_RGB(0xaa, 0xaa, 0x00),  /* yellow */
+        [QEMU_COLOR_WHITE]   = QEMU_RGB(0xaa, 0xaa, 0xaa),  /* white */
     },
     {   /* bright */
-        QEMU_RGB(0x00, 0x00, 0x00),  /* black */
-        QEMU_RGB(0xff, 0x00, 0x00),  /* red */
-        QEMU_RGB(0x00, 0xff, 0x00),  /* green */
-        QEMU_RGB(0xff, 0xff, 0x00),  /* yellow */
-        QEMU_RGB(0x00, 0x00, 0xff),  /* blue */
-        QEMU_RGB(0xff, 0x00, 0xff),  /* magenta */
-        QEMU_RGB(0x00, 0xff, 0xff),  /* cyan */
-        QEMU_RGB(0xff, 0xff, 0xff),  /* white */
+        [QEMU_COLOR_BLACK]   = QEMU_RGB(0x00, 0x00, 0x00),  /* black */
+        [QEMU_COLOR_BLUE]    = QEMU_RGB(0x00, 0x00, 0xff),  /* blue */
+        [QEMU_COLOR_GREEN]   = QEMU_RGB(0x00, 0xff, 0x00),  /* green */
+        [QEMU_COLOR_CYAN]    = QEMU_RGB(0x00, 0xff, 0xff),  /* cyan */
+        [QEMU_COLOR_RED]     = QEMU_RGB(0xff, 0x00, 0x00),  /* red */
+        [QEMU_COLOR_MAGENTA] = QEMU_RGB(0xff, 0x00, 0xff),  /* magenta */
+        [QEMU_COLOR_YELLOW]  = QEMU_RGB(0xff, 0xff, 0x00),  /* yellow */
+        [QEMU_COLOR_WHITE]   = QEMU_RGB(0xff, 0xff, 0xff),  /* white */
     }
 };
 
@@ -560,7 +547,7 @@ static void console_refresh(QemuConsole *s)
     }
 
     vga_fill_rect(s, 0, 0, surface_width(surface), surface_height(surface),
-                  color_table_rgb[0][COLOR_BLACK]);
+                  color_table_rgb[0][QEMU_COLOR_BLACK]);
     y1 = s->y_displayed;
     for (y = 0; y < s->height; y++) {
         c = s->cells + y1 * s->width;
@@ -698,53 +685,53 @@ static void console_handle_escape(QemuConsole *s)
                 break;
             /* set foreground color */
             case 30:
-                s->t_attrib.fgcol=COLOR_BLACK;
+                s->t_attrib.fgcol = QEMU_COLOR_BLACK;
                 break;
             case 31:
-                s->t_attrib.fgcol=COLOR_RED;
+                s->t_attrib.fgcol = QEMU_COLOR_RED;
                 break;
             case 32:
-                s->t_attrib.fgcol=COLOR_GREEN;
+                s->t_attrib.fgcol = QEMU_COLOR_GREEN;
                 break;
             case 33:
-                s->t_attrib.fgcol=COLOR_YELLOW;
+                s->t_attrib.fgcol = QEMU_COLOR_YELLOW;
                 break;
             case 34:
-                s->t_attrib.fgcol=COLOR_BLUE;
+                s->t_attrib.fgcol = QEMU_COLOR_BLUE;
                 break;
             case 35:
-                s->t_attrib.fgcol=COLOR_MAGENTA;
+                s->t_attrib.fgcol = QEMU_COLOR_MAGENTA;
                 break;
             case 36:
-                s->t_attrib.fgcol=COLOR_CYAN;
+                s->t_attrib.fgcol = QEMU_COLOR_CYAN;
                 break;
             case 37:
-                s->t_attrib.fgcol=COLOR_WHITE;
+                s->t_attrib.fgcol = QEMU_COLOR_WHITE;
                 break;
             /* set background color */
             case 40:
-                s->t_attrib.bgcol=COLOR_BLACK;
+                s->t_attrib.bgcol = QEMU_COLOR_BLACK;
                 break;
             case 41:
-                s->t_attrib.bgcol=COLOR_RED;
+                s->t_attrib.bgcol = QEMU_COLOR_RED;
                 break;
             case 42:
-                s->t_attrib.bgcol=COLOR_GREEN;
+                s->t_attrib.bgcol = QEMU_COLOR_GREEN;
                 break;
             case 43:
-                s->t_attrib.bgcol=COLOR_YELLOW;
+                s->t_attrib.bgcol = QEMU_COLOR_YELLOW;
                 break;
             case 44:
-                s->t_attrib.bgcol=COLOR_BLUE;
+                s->t_attrib.bgcol = QEMU_COLOR_BLUE;
                 break;
             case 45:
-                s->t_attrib.bgcol=COLOR_MAGENTA;
+                s->t_attrib.bgcol = QEMU_COLOR_MAGENTA;
                 break;
             case 46:
-                s->t_attrib.bgcol=COLOR_CYAN;
+                s->t_attrib.bgcol = QEMU_COLOR_CYAN;
                 break;
             case 47:
-                s->t_attrib.bgcol=COLOR_WHITE;
+                s->t_attrib.bgcol = QEMU_COLOR_WHITE;
                 break;
         }
     }
@@ -1165,11 +1152,13 @@ static void text_console_update(void *opaque, console_ch_t *chardata)
         src = (s->y_base + s->text_y[0]) * s->width;
         chardata += s->text_y[0] * s->width;
         for (i = s->text_y[0]; i <= s->text_y[1]; i ++)
-            for (j = 0; j < s->width; j ++, src ++)
-                console_write_ch(chardata ++, s->cells[src].ch |
-                                (s->cells[src].t_attrib.fgcol << 12) |
-                                (s->cells[src].t_attrib.bgcol << 8) |
-                                (s->cells[src].t_attrib.bold << 21));
+            for (j = 0; j < s->width; j++, src++) {
+                console_write_ch(chardata ++,
+                                 ATTR2CHTYPE(s->cells[src].ch,
+                                             s->cells[src].t_attrib.fgcol,
+                                             s->cells[src].t_attrib.bgcol,
+                                             s->cells[src].t_attrib.bold));
+            }
         dpy_text_update(s, s->text_x[0], s->text_y[0],
                         s->text_x[1] - s->text_x[0], i - s->text_y[0]);
         s->text_x[0] = s->width;
@@ -1306,8 +1295,8 @@ static DisplaySurface *qemu_create_message_surface(int w, int h,
                                                    const char *msg)
 {
     DisplaySurface *surface = qemu_create_displaysurface(w, h);
-    pixman_color_t bg = color_table_rgb[0][COLOR_BLACK];
-    pixman_color_t fg = color_table_rgb[0][COLOR_WHITE];
+    pixman_color_t bg = color_table_rgb[0][QEMU_COLOR_BLACK];
+    pixman_color_t fg = color_table_rgb[0][QEMU_COLOR_WHITE];
     pixman_image_t *glyph;
     int len, x, y, i;
 
@@ -1941,8 +1930,8 @@ static void text_console_do_init(CharDriverState *chr, DisplayState *ds)
     s->t_attrib_default.blink = 0;
     s->t_attrib_default.invers = 0;
     s->t_attrib_default.unvisible = 0;
-    s->t_attrib_default.fgcol = COLOR_WHITE;
-    s->t_attrib_default.bgcol = COLOR_BLACK;
+    s->t_attrib_default.fgcol = QEMU_COLOR_WHITE;
+    s->t_attrib_default.bgcol = QEMU_COLOR_BLACK;
     /* set current text attributes to default */
     s->t_attrib = s->t_attrib_default;
     text_console_resize(s);
@@ -1951,7 +1940,7 @@ static void text_console_do_init(CharDriverState *chr, DisplayState *ds)
         char msg[128];
         int len;
 
-        s->t_attrib.bgcol = COLOR_BLUE;
+        s->t_attrib.bgcol = QEMU_COLOR_BLUE;
         len = snprintf(msg, sizeof(msg), "%s console\r\n", chr->label);
         console_puts(chr, (uint8_t*)msg, len);
         s->t_attrib = s->t_attrib_default;
diff --git a/ui/curses.c b/ui/curses.c
index 7e7e4029ec..274e09b0be 100644
--- a/ui/curses.c
+++ b/ui/curses.c
@@ -333,8 +333,14 @@ static void curses_atexit(void)
 static void curses_setup(void)
 {
     int i, colour_default[8] = {
-        COLOR_BLACK, COLOR_BLUE, COLOR_GREEN, COLOR_CYAN,
-        COLOR_RED, COLOR_MAGENTA, COLOR_YELLOW, COLOR_WHITE,
+        [QEMU_COLOR_BLACK]   = COLOR_BLACK,
+        [QEMU_COLOR_BLUE]    = COLOR_BLUE,
+        [QEMU_COLOR_GREEN]   = COLOR_GREEN,
+        [QEMU_COLOR_CYAN]    = COLOR_CYAN,
+        [QEMU_COLOR_RED]     = COLOR_RED,
+        [QEMU_COLOR_MAGENTA] = COLOR_MAGENTA,
+        [QEMU_COLOR_YELLOW]  = COLOR_YELLOW,
+        [QEMU_COLOR_WHITE]   = COLOR_WHITE,
     };
 
     /* input as raw as possible, let everything be interpreted
@@ -343,10 +349,11 @@ static void curses_setup(void)
     nodelay(stdscr, TRUE); nonl(); keypad(stdscr, TRUE);
     start_color(); raw(); scrollok(stdscr, FALSE);
 
+    /* Make color pair to match color format (3bits bg:3bits fg) */
     for (i = 0; i < 64; i++) {
         init_pair(i, colour_default[i & 7], colour_default[i >> 3]);
     }
-    /* Set default color for more than 64. (monitor uses 0x74xx for example) */
+    /* Set default color for more than 64 for safety. */
     for (i = 64; i < COLOR_PAIRS; i++) {
         init_pair(i, COLOR_WHITE, COLOR_BLACK);
     }
diff --git a/ui/sdl2-gl.c b/ui/sdl2-gl.c
index b604c0671e..2bb3d06bab 100644
--- a/ui/sdl2-gl.c
+++ b/ui/sdl2-gl.c
@@ -31,11 +31,37 @@
 #include "ui/sdl2.h"
 #include "sysemu/sysemu.h"
 
+#include <epoxy/gl.h>
+
+static void sdl2_set_scanout_mode(struct sdl2_console *scon, bool scanout)
+{
+    if (scon->scanout_mode == scanout) {
+        return;
+    }
+
+    scon->scanout_mode = scanout;
+    if (!scon->scanout_mode) {
+        if (scon->fbo_id) {
+            glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT,
+                                      GL_COLOR_ATTACHMENT0_EXT,
+                                      GL_TEXTURE_2D, 0, 0);
+            glDeleteFramebuffers(1, &scon->fbo_id);
+            glBindFramebuffer(GL_FRAMEBUFFER_EXT, 0);
+            scon->fbo_id = 0;
+        }
+        if (scon->surface) {
+            surface_gl_destroy_texture(scon->gls, scon->surface);
+            surface_gl_create_texture(scon->gls, scon->surface);
+        }
+    }
+}
+
 static void sdl2_gl_render_surface(struct sdl2_console *scon)
 {
     int ww, wh;
 
     SDL_GL_MakeCurrent(scon->real_window, scon->winctx);
+    sdl2_set_scanout_mode(scon, false);
 
     SDL_GetWindowSize(scon->real_window, &ww, &wh);
     surface_gl_setup_viewport(scon->gls, scon->surface, ww, wh);
@@ -110,3 +136,112 @@ void sdl2_gl_redraw(struct sdl2_console *scon)
         sdl2_gl_render_surface(scon);
     }
 }
+
+QEMUGLContext sdl2_gl_create_context(DisplayChangeListener *dcl,
+                                     QEMUGLParams *params)
+{
+    struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
+    SDL_GLContext ctx;
+
+    assert(scon->opengl);
+
+    SDL_GL_MakeCurrent(scon->real_window, scon->winctx);
+
+    SDL_GL_SetAttribute(SDL_GL_SHARE_WITH_CURRENT_CONTEXT, 1);
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK,
+                        SDL_GL_CONTEXT_PROFILE_CORE);
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, params->major_ver);
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, params->minor_ver);
+
+    ctx = SDL_GL_CreateContext(scon->real_window);
+    return (QEMUGLContext)ctx;
+}
+
+void sdl2_gl_destroy_context(DisplayChangeListener *dcl, QEMUGLContext ctx)
+{
+    SDL_GLContext sdlctx = (SDL_GLContext)ctx;
+
+    SDL_GL_DeleteContext(sdlctx);
+}
+
+int sdl2_gl_make_context_current(DisplayChangeListener *dcl,
+                                 QEMUGLContext ctx)
+{
+    struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
+    SDL_GLContext sdlctx = (SDL_GLContext)ctx;
+
+    assert(scon->opengl);
+
+    return SDL_GL_MakeCurrent(scon->real_window, sdlctx);
+}
+
+QEMUGLContext sdl2_gl_get_current_context(DisplayChangeListener *dcl)
+{
+    SDL_GLContext sdlctx;
+
+    sdlctx = SDL_GL_GetCurrentContext();
+    return (QEMUGLContext)sdlctx;
+}
+
+void sdl2_gl_scanout(DisplayChangeListener *dcl,
+                     uint32_t backing_id, bool backing_y_0_top,
+                     uint32_t x, uint32_t y,
+                     uint32_t w, uint32_t h)
+{
+    struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
+
+    assert(scon->opengl);
+    scon->x = x;
+    scon->y = y;
+    scon->w = w;
+    scon->h = h;
+    scon->tex_id = backing_id;
+    scon->y0_top = backing_y_0_top;
+
+    SDL_GL_MakeCurrent(scon->real_window, scon->winctx);
+
+    if (scon->tex_id == 0 || scon->w == 0 || scon->h == 0) {
+        sdl2_set_scanout_mode(scon, false);
+        return;
+    }
+
+    sdl2_set_scanout_mode(scon, true);
+    if (!scon->fbo_id) {
+        glGenFramebuffers(1, &scon->fbo_id);
+    }
+
+    glBindFramebuffer(GL_FRAMEBUFFER_EXT, scon->fbo_id);
+    glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
+                              GL_TEXTURE_2D, scon->tex_id, 0);
+}
+
+void sdl2_gl_scanout_flush(DisplayChangeListener *dcl,
+                           uint32_t x, uint32_t y, uint32_t w, uint32_t h)
+{
+    struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
+    int ww, wh, y1, y2;
+
+    assert(scon->opengl);
+    if (!scon->scanout_mode) {
+        return;
+    }
+    if (!scon->fbo_id) {
+        return;
+    }
+
+    SDL_GL_MakeCurrent(scon->real_window, scon->winctx);
+
+    glBindFramebuffer(GL_READ_FRAMEBUFFER, scon->fbo_id);
+    glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+
+    SDL_GetWindowSize(scon->real_window, &ww, &wh);
+    glViewport(0, 0, ww, wh);
+    y1 = scon->y0_top ? 0 : scon->h;
+    y2 = scon->y0_top ? scon->h : 0;
+    glBlitFramebuffer(0, y1, scon->w, y2,
+                      0, 0, ww, wh,
+                      GL_COLOR_BUFFER_BIT, GL_NEAREST);
+    glBindFramebuffer(GL_FRAMEBUFFER_EXT, scon->fbo_id);
+
+    SDL_GL_SwapWindow(scon->real_window);
+}
diff --git a/ui/sdl2.c b/ui/sdl2.c
index cf38df2684..46270f4172 100644
--- a/ui/sdl2.c
+++ b/ui/sdl2.c
@@ -700,6 +700,13 @@ static const DisplayChangeListenerOps dcl_gl_ops = {
     .dpy_refresh             = sdl2_gl_refresh,
     .dpy_mouse_set           = sdl_mouse_warp,
     .dpy_cursor_define       = sdl_mouse_define,
+
+    .dpy_gl_ctx_create       = sdl2_gl_create_context,
+    .dpy_gl_ctx_destroy      = sdl2_gl_destroy_context,
+    .dpy_gl_ctx_make_current = sdl2_gl_make_context_current,
+    .dpy_gl_ctx_get_current  = sdl2_gl_get_current_context,
+    .dpy_gl_scanout          = sdl2_gl_scanout,
+    .dpy_gl_update           = sdl2_gl_scanout_flush,
 };
 #endif