Merge remote-tracking branch 'remotes/stsquad/tags/pull-testing-for-4.0-120319-1...

[mirror_qemu.git] / ui / sdl2-gl.c

diff --git a/ui/sdl2-gl.c b/ui/sdl2-gl.c
index b604c0671e84737dba2f639c2587bb0a73844eee..1bf4542d8d9659340ad9e677dbdd32b589dc1075 100644 (file)
--- a/ui/sdl2-gl.c
+++ b/ui/sdl2-gl.c
@@ -25,17 +25,35 @@
  * THE SOFTWARE.
  */
 
+#include "qemu/osdep.h"
 #include "qemu-common.h"
 #include "ui/console.h"
 #include "ui/input.h"
 #include "ui/sdl2.h"
 #include "sysemu/sysemu.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) {
+        egl_fb_destroy(&scon->guest_fb);
+        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);
@@ -70,7 +88,7 @@ void sdl2_gl_switch(DisplayChangeListener *dcl,
     scon->surface = new_surface;
 
     if (!new_surface) {
-        console_gl_fini_context(scon->gls);
+        qemu_gl_fini_shader(scon->gls);
         scon->gls = NULL;
         sdl2_window_destroy(scon);
         return;
@@ -78,7 +96,7 @@ void sdl2_gl_switch(DisplayChangeListener *dcl,
 
     if (!scon->real_window) {
         sdl2_window_create(scon);
-        scon->gls = console_gl_init_context();
+        scon->gls = qemu_gl_init_shader();
     } else if (old_surface &&
                ((surface_width(old_surface)  != surface_width(new_surface)) ||
                 (surface_height(old_surface) != surface_height(new_surface)))) {
@@ -106,7 +124,130 @@ void sdl2_gl_redraw(struct sdl2_console *scon)
 {
     assert(scon->opengl);
 
+    if (scon->scanout_mode) {
+        /* sdl2_gl_scanout_flush actually only care about
+         * the first argument. */
+        return sdl2_gl_scanout_flush(&scon->dcl, 0, 0, 0, 0);
+    }
     if (scon->surface) {
         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);
+    if (scon->opts->gl == DISPLAYGL_MODE_ON ||
+        scon->opts->gl == DISPLAYGL_MODE_CORE) {
+        SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK,
+                            SDL_GL_CONTEXT_PROFILE_CORE);
+    } else if (scon->opts->gl == DISPLAYGL_MODE_ES) {
+        SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK,
+                            SDL_GL_CONTEXT_PROFILE_ES);
+    }
+    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);
+
+    /* If SDL fail to create a GL context and we use the "on" flag,
+     * then try to fallback to GLES.
+     */
+    if (!ctx && scon->opts->gl == DISPLAYGL_MODE_ON) {
+        SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK,
+                            SDL_GL_CONTEXT_PROFILE_ES);
+        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_disable(DisplayChangeListener *dcl)
+{
+    struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
+
+    assert(scon->opengl);
+    scon->w = 0;
+    scon->h = 0;
+    sdl2_set_scanout_mode(scon, false);
+}
+
+void sdl2_gl_scanout_texture(DisplayChangeListener *dcl,
+                             uint32_t backing_id,
+                             bool backing_y_0_top,
+                             uint32_t backing_width,
+                             uint32_t backing_height,
+                             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->y0_top = backing_y_0_top;
+
+    SDL_GL_MakeCurrent(scon->real_window, scon->winctx);
+
+    sdl2_set_scanout_mode(scon, true);
+    egl_fb_setup_for_tex(&scon->guest_fb, backing_width, backing_height,
+                         backing_id, false);
+}
+
+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;
+
+    assert(scon->opengl);
+    if (!scon->scanout_mode) {
+        return;
+    }
+    if (!scon->guest_fb.framebuffer) {
+        return;
+    }
+
+    SDL_GL_MakeCurrent(scon->real_window, scon->winctx);
+
+    SDL_GetWindowSize(scon->real_window, &ww, &wh);
+    egl_fb_setup_default(&scon->win_fb, ww, wh);
+    egl_fb_blit(&scon->win_fb, &scon->guest_fb, !scon->y0_top);
+
+    SDL_GL_SwapWindow(scon->real_window);
+}