Bool
radeon_glamor_create_screen_resources(ScreenPtr screen)
{
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
RADEONInfoPtr info = RADEONPTR(scrn);
if (!info->use_glamor)
return TRUE;
if (!glamor_glyphs_init(screen))
return FALSE;
if (!glamor_egl_create_textured_screen_ext(screen,
info->front_bo->handle,
scrn->displayWidth *
info->pixel_bytes,
NULL))
return FALSE;
return TRUE;
}
/** Set up glamor for an already-configured GL context. */
Bool
glamor_init(ScreenPtr screen, unsigned int flags)
{
glamor_screen_private *glamor_priv;
int gl_version;
int max_viewport_size[2];
#ifdef RENDER
PictureScreenPtr ps = GetPictureScreenIfSet(screen);
#endif
if (flags & ~GLAMOR_VALID_FLAGS) {
ErrorF("glamor_init: Invalid flags %x\n", flags);
return FALSE;
}
glamor_priv = calloc(1, sizeof(*glamor_priv));
if (glamor_priv == NULL)
return FALSE;
glamor_priv->flags = flags;
if (!dixRegisterPrivateKey(&glamor_screen_private_key, PRIVATE_SCREEN, 0)) {
LogMessage(X_WARNING,
"glamor%d: Failed to allocate screen private\n",
screen->myNum);
goto fail;
}
glamor_set_screen_private(screen, glamor_priv);
if (!dixRegisterPrivateKey(&glamor_pixmap_private_key, PRIVATE_PIXMAP, 0)) {
LogMessage(X_WARNING,
"glamor%d: Failed to allocate pixmap private\n",
screen->myNum);
goto fail;
}
if (!dixRegisterPrivateKey(&glamor_gc_private_key, PRIVATE_GC,
sizeof (glamor_gc_private))) {
LogMessage(X_WARNING,
"glamor%d: Failed to allocate gc private\n",
screen->myNum);
goto fail;
}
if (epoxy_is_desktop_gl())
glamor_priv->gl_flavor = GLAMOR_GL_DESKTOP;
else
glamor_priv->gl_flavor = GLAMOR_GL_ES2;
gl_version = epoxy_gl_version();
/* Would be nice to have a cleaner test for GLSL 1.30 support,
* but for now this should suffice
*/
if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP && gl_version >= 30)
glamor_priv->glsl_version = 130;
else
glamor_priv->glsl_version = 120;
/* We'd like to require GL_ARB_map_buffer_range or
* GL_OES_map_buffer_range, since it offers more information to
* the driver than plain old glMapBuffer() or glBufferSubData().
* It's been supported on Mesa on the desktop since 2009 and on
* GLES2 since October 2012. It's supported on Apple's iOS
* drivers for SGX535 and A7, but apparently not on most Android
* devices (the OES extension spec wasn't released until June
* 2012).
*
* 82% of 0 A.D. players (desktop GL) submitting hardware reports
* have support for it, with most of the ones lacking it being on
* Windows with Intel 4-series (G45) graphics or older.
*/
if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) {
if (gl_version < 21) {
ErrorF("Require OpenGL version 2.1 or later.\n");
goto fail;
}
} else {
if (gl_version < 20) {
ErrorF("Require Open GLES2.0 or later.\n");
goto fail;
}
if (!epoxy_has_gl_extension("GL_EXT_texture_format_BGRA8888")) {
ErrorF("GL_EXT_texture_format_BGRA8888 required\n");
goto fail;
}
}
glamor_priv->has_rw_pbo = FALSE;
if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
glamor_priv->has_rw_pbo = TRUE;
glamor_priv->has_khr_debug = epoxy_has_gl_extension("GL_KHR_debug");
glamor_priv->has_pack_invert =
epoxy_has_gl_extension("GL_MESA_pack_invert");
glamor_priv->has_fbo_blit =
epoxy_has_gl_extension("GL_EXT_framebuffer_blit");
glamor_priv->has_map_buffer_range =
epoxy_has_gl_extension("GL_ARB_map_buffer_range");
glamor_priv->has_buffer_storage =
epoxy_has_gl_extension("GL_ARB_buffer_storage");
glamor_priv->has_nv_texture_barrier =
epoxy_has_gl_extension("GL_NV_texture_barrier");
glGetIntegerv(GL_MAX_RENDERBUFFER_SIZE, &glamor_priv->max_fbo_size);
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &glamor_priv->max_fbo_size);
glGetIntegerv(GL_MAX_VIEWPORT_DIMS, max_viewport_size);
glamor_priv->max_fbo_size = MIN(glamor_priv->max_fbo_size, max_viewport_size[0]);
glamor_priv->max_fbo_size = MIN(glamor_priv->max_fbo_size, max_viewport_size[1]);
#ifdef MAX_FBO_SIZE
glamor_priv->max_fbo_size = MAX_FBO_SIZE;
#endif
glamor_set_debug_level(&glamor_debug_level);
/* If we are using egl screen, call egl screen init to
* register correct close screen function. */
if (flags & GLAMOR_USE_EGL_SCREEN) {
glamor_egl_screen_init(screen, &glamor_priv->ctx);
} else {
if (!glamor_glx_screen_init(&glamor_priv->ctx))
goto fail;
}
glamor_priv->saved_procs.close_screen = screen->CloseScreen;
screen->CloseScreen = glamor_close_screen;
glamor_priv->saved_procs.create_screen_resources =
screen->CreateScreenResources;
screen->CreateScreenResources = glamor_create_screen_resources;
if (!glamor_font_init(screen))
goto fail;
if (flags & GLAMOR_USE_SCREEN) {
if (!RegisterBlockAndWakeupHandlers(_glamor_block_handler,
_glamor_wakeup_handler,
glamor_priv)) {
goto fail;
}
glamor_priv->saved_procs.create_gc = screen->CreateGC;
screen->CreateGC = glamor_create_gc;
glamor_priv->saved_procs.create_pixmap = screen->CreatePixmap;
screen->CreatePixmap = glamor_create_pixmap;
glamor_priv->saved_procs.destroy_pixmap = screen->DestroyPixmap;
screen->DestroyPixmap = glamor_destroy_pixmap;
glamor_priv->saved_procs.get_spans = screen->GetSpans;
screen->GetSpans = glamor_get_spans;
glamor_priv->saved_procs.get_image = screen->GetImage;
screen->GetImage = glamor_get_image;
glamor_priv->saved_procs.change_window_attributes =
screen->ChangeWindowAttributes;
screen->ChangeWindowAttributes = glamor_change_window_attributes;
glamor_priv->saved_procs.copy_window = screen->CopyWindow;
screen->CopyWindow = glamor_copy_window;
glamor_priv->saved_procs.bitmap_to_region = screen->BitmapToRegion;
screen->BitmapToRegion = glamor_bitmap_to_region;
}
#ifdef RENDER
if (flags & GLAMOR_USE_PICTURE_SCREEN) {
glamor_priv->saved_procs.composite = ps->Composite;
ps->Composite = glamor_composite;
glamor_priv->saved_procs.trapezoids = ps->Trapezoids;
ps->Trapezoids = glamor_trapezoids;
glamor_priv->saved_procs.triangles = ps->Triangles;
ps->Triangles = glamor_triangles;
glamor_priv->saved_procs.addtraps = ps->AddTraps;
ps->AddTraps = glamor_add_traps;
}
glamor_priv->saved_procs.composite_rects = ps->CompositeRects;
ps->CompositeRects = glamor_composite_rectangles;
glamor_priv->saved_procs.glyphs = ps->Glyphs;
ps->Glyphs = glamor_glyphs;
glamor_priv->saved_procs.unrealize_glyph = ps->UnrealizeGlyph;
ps->UnrealizeGlyph = glamor_glyph_unrealize;
glamor_priv->saved_procs.create_picture = ps->CreatePicture;
ps->CreatePicture = glamor_create_picture;
glamor_priv->saved_procs.destroy_picture = ps->DestroyPicture;
ps->DestroyPicture = glamor_destroy_picture;
glamor_init_composite_shaders(screen);
#endif
glamor_priv->saved_procs.set_window_pixmap = screen->SetWindowPixmap;
screen->SetWindowPixmap = glamor_set_window_pixmap;
glamor_init_vbo(screen);
glamor_init_pixmap_fbo(screen);
#ifdef GLAMOR_TRAPEZOID_SHADER
glamor_init_trapezoid_shader(screen);
#endif
glamor_init_finish_access_shaders(screen);
#ifdef GLAMOR_GRADIENT_SHADER
glamor_init_gradient_shader(screen);
#endif
glamor_pixmap_init(screen);
glamor_glyphs_init(screen);
glamor_sync_init(screen);
glamor_priv->screen = screen;
return TRUE;
fail:
free(glamor_priv);
glamor_set_screen_private(screen, NULL);
return FALSE;
}
