static CoglBool
_cogl_texture_3d_can_create (CoglContext *ctx,
int width,
int height,
int depth,
CoglPixelFormat internal_format,
CoglError **error)
{
GLenum gl_intformat;
GLenum gl_type;
/* This should only happen on GLES */
if (!cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_3D))
{
_cogl_set_error (error,
COGL_SYSTEM_ERROR,
COGL_SYSTEM_ERROR_UNSUPPORTED,
"3D textures are not supported by the GPU");
return FALSE;
}
/* If NPOT textures aren't supported then the size must be a power
of two */
if (!cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_NPOT) &&
(!_cogl_util_is_pot (width) ||
!_cogl_util_is_pot (height) ||
!_cogl_util_is_pot (depth)))
{
_cogl_set_error (error,
COGL_SYSTEM_ERROR,
COGL_SYSTEM_ERROR_UNSUPPORTED,
"A non-power-of-two size was requested but this is not "
"supported by the GPU");
return FALSE;
}
ctx->driver_vtable->pixel_format_to_gl (ctx,
internal_format,
&gl_intformat,
NULL,
&gl_type);
/* Check that the driver can create a texture with that size */
if (!ctx->texture_driver->size_supported_3d (ctx,
GL_TEXTURE_3D,
gl_intformat,
gl_type,
width,
height,
depth))
{
_cogl_set_error (error,
COGL_SYSTEM_ERROR,
COGL_SYSTEM_ERROR_UNSUPPORTED,
"The requested dimensions are not supported by the GPU");
return FALSE;
}
return TRUE;
}
static CoglBool
_cogl_winsys_egl_onscreen_init (CoglOnscreen *onscreen,
EGLConfig egl_config,
CoglError **error)
{
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
CoglOnscreenWayland *wayland_onscreen;
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
CoglContext *context = framebuffer->context;
CoglRenderer *renderer = context->display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglRendererWayland *wayland_renderer = egl_renderer->platform;
wayland_onscreen = g_slice_new0 (CoglOnscreenWayland);
egl_onscreen->platform = wayland_onscreen;
_cogl_list_init (&wayland_onscreen->frame_callbacks);
if (onscreen->foreign_surface)
wayland_onscreen->wayland_surface = onscreen->foreign_surface;
else
wayland_onscreen->wayland_surface =
wl_compositor_create_surface (wayland_renderer->wayland_compositor);
if (!wayland_onscreen->wayland_surface)
{
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_ONSCREEN,
"Error while creating wayland surface for CoglOnscreen");
return FALSE;
}
wayland_onscreen->wayland_egl_native_window =
wl_egl_window_create (wayland_onscreen->wayland_surface,
cogl_framebuffer_get_width (framebuffer),
cogl_framebuffer_get_height (framebuffer));
if (!wayland_onscreen->wayland_egl_native_window)
{
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_ONSCREEN,
"Error while creating wayland egl native window "
"for CoglOnscreen");
return FALSE;
}
egl_onscreen->egl_surface =
eglCreateWindowSurface (egl_renderer->edpy,
egl_config,
(EGLNativeWindowType)
wayland_onscreen->wayland_egl_native_window,
NULL);
if (!onscreen->foreign_surface)
wayland_onscreen->wayland_shell_surface =
wl_shell_get_shell_surface (wayland_renderer->wayland_shell,
wayland_onscreen->wayland_surface);
return TRUE;
}
static CoglBool
_cogl_winsys_onscreen_init (CoglOnscreen *onscreen,
CoglError **error)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
CoglContext *context = framebuffer->context;
CoglDisplay *display = context->display;
CoglDisplayEGL *egl_display = display->winsys;
CoglDisplayKMS *kms_display = egl_display->platform;
CoglRenderer *renderer = display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglRendererKMS *kms_renderer = egl_renderer->platform;
CoglOnscreenEGL *egl_onscreen;
CoglOnscreenKMS *kms_onscreen;
_COGL_RETURN_VAL_IF_FAIL (egl_display->egl_context, FALSE);
onscreen->winsys = g_slice_new0 (CoglOnscreenEGL);
egl_onscreen = onscreen->winsys;
kms_onscreen = g_slice_new0 (CoglOnscreenKMS);
egl_onscreen->platform = kms_onscreen;
kms_onscreen->surface =
gbm_surface_create (kms_renderer->gbm,
kms_display->width,
kms_display->height,
GBM_BO_FORMAT_XRGB8888,
GBM_BO_USE_SCANOUT |
GBM_BO_USE_RENDERING);
if (!kms_onscreen->surface)
{
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_ONSCREEN,
"Failed to allocate surface");
return FALSE;
}
egl_onscreen->egl_surface =
eglCreateWindowSurface (egl_renderer->edpy,
egl_display->egl_config,
(NativeWindowType) kms_onscreen->surface,
NULL);
if (egl_onscreen->egl_surface == EGL_NO_SURFACE)
{
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_ONSCREEN,
"Failed to allocate surface");
return FALSE;
}
_cogl_framebuffer_winsys_update_size (framebuffer,
kms_display->width,
kms_display->height);
return TRUE;
}
static CoglBool
_cogl_winsys_renderer_connect (CoglRenderer *renderer,
CoglError **error)
{
CoglRendererEGL *egl_renderer;
CoglRendererGDL *gdl_renderer;
gdl_ret_t rc = GDL_SUCCESS;
gdl_display_info_t gdl_display_info;
renderer->winsys = g_slice_new0 (CoglRendererEGL);
egl_renderer = renderer->winsys;
gdl_renderer = g_slice_new0 (CoglRendererGDL);
egl_renderer->platform = gdl_renderer;
egl_renderer->platform_vtable = &_cogl_winsys_egl_vtable;
egl_renderer->edpy = eglGetDisplay (EGL_DEFAULT_DISPLAY);
if (!_cogl_winsys_egl_renderer_connect_common (renderer, error))
goto error;
/* Check we can talk to the GDL library */
rc = gdl_init (NULL);
if (rc != GDL_SUCCESS)
{
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"GDL initialize failed. %s",
gdl_get_error_string (rc));
goto error;
}
rc = gdl_get_display_info (GDL_DISPLAY_ID_0, &gdl_display_info);
if (rc != GDL_SUCCESS)
{
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"GDL failed to get display information: %s",
gdl_get_error_string (rc));
gdl_close ();
goto error;
}
gdl_close ();
return TRUE;
error:
_cogl_winsys_renderer_disconnect (renderer);
return FALSE;
}
static CoglBool
_cogl_winsys_egl_context_created (CoglDisplay *display,
CoglError **error)
{
CoglDisplayEGL *egl_display = display->winsys;
CoglDisplayKMS *kms_display = egl_display->platform;
CoglRenderer *renderer = display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglRendererKMS *kms_renderer = egl_renderer->platform;
kms_display->dummy_gbm_surface = gbm_surface_create (kms_renderer->gbm,
16, 16,
GBM_FORMAT_XRGB8888,
GBM_BO_USE_RENDERING);
if (!kms_display->dummy_gbm_surface)
{
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"Failed to create dummy GBM surface");
return FALSE;
}
egl_display->dummy_surface =
eglCreateWindowSurface (egl_renderer->edpy,
egl_display->egl_config,
(NativeWindowType) kms_display->dummy_gbm_surface,
NULL);
if (egl_display->dummy_surface == EGL_NO_SURFACE)
{
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"Failed to create dummy EGL surface");
return FALSE;
}
if (!_cogl_winsys_egl_make_current (display,
egl_display->dummy_surface,
egl_display->dummy_surface,
egl_display->egl_context))
{
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"Failed to make context current");
return FALSE;
}
return TRUE;
}
/* NB: The reason we require the width, height and format to be passed
* even though they may seem redundant is because GLES 1/2 don't
* provide a way to query these properties. */
CoglTexture2D *
_cogl_egl_texture_2d_new_from_image (CoglContext *ctx,
int width,
int height,
CoglPixelFormat format,
EGLImageKHR image,
CoglError **error)
{
_COGL_RETURN_VAL_IF_FAIL (_cogl_context_get_winsys (ctx)->constraints &
COGL_RENDERER_CONSTRAINT_USES_EGL,
NULL);
_COGL_RETURN_VAL_IF_FAIL (_cogl_has_private_feature
(ctx,
COGL_PRIVATE_FEATURE_TEXTURE_2D_FROM_EGL_IMAGE),
NULL);
if (ctx->driver_vtable->egl_texture_2d_new_from_image)
return ctx->driver_vtable->egl_texture_2d_new_from_image (ctx,
width,
height,
format,
image,
error);
else
{
_cogl_set_error (error,
COGL_SYSTEM_ERROR,
COGL_SYSTEM_ERROR_UNSUPPORTED,
"Creating 2D textures from EGL images is not "
"supported by the current driver");
return NULL;
}
}
static CoglBool
_cogl_winsys_set_gles2_context (CoglGLES2Context *gles2_ctx, CoglError **error)
{
CoglContext *ctx = gles2_ctx->context;
CoglDisplayEGL *egl_display = ctx->display->winsys;
CoglBool status;
if (gles2_ctx->write_buffer &&
cogl_is_onscreen (gles2_ctx->write_buffer))
status =
bind_onscreen_with_context (COGL_ONSCREEN (gles2_ctx->write_buffer),
gles2_ctx->winsys);
else
status = _cogl_winsys_egl_make_current (ctx->display,
egl_display->dummy_surface,
egl_display->dummy_surface,
gles2_ctx->winsys);
if (!status)
{
_cogl_set_error (error,
COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_MAKE_CURRENT,
"Failed to make gles2 context current");
return FALSE;
}
return TRUE;
}
static void *
_cogl_winsys_context_create_gles2_context (CoglContext *ctx, CoglError **error)
{
CoglRendererEGL *egl_renderer = ctx->display->renderer->winsys;
CoglDisplayEGL *egl_display = ctx->display->winsys;
EGLint attribs[3];
EGLContext egl_context;
attribs[0] = EGL_CONTEXT_CLIENT_VERSION;
attribs[1] = 2;
attribs[2] = EGL_NONE;
egl_context = eglCreateContext (egl_renderer->edpy,
egl_display->egl_config,
egl_display->egl_context,
attribs);
if (egl_context == EGL_NO_CONTEXT)
{
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_GLES2_CONTEXT,
"%s", get_error_string ());
return NULL;
}
return (void *)egl_context;
}
CoglBitmap *
_cogl_bitmap_new_with_malloc_buffer (CoglContext *context,
unsigned int width,
unsigned int height,
CoglPixelFormat format,
CoglError **error)
{
static CoglUserDataKey bitmap_free_key;
int bpp = _cogl_pixel_format_get_bytes_per_pixel (format);
int rowstride = ((width * bpp) + 3) & ~3;
uint8_t *data = g_try_malloc (rowstride * height);
CoglBitmap *bitmap;
if (!data)
{
_cogl_set_error (error,
COGL_SYSTEM_ERROR,
COGL_SYSTEM_ERROR_NO_MEMORY,
"Failed to allocate memory for bitmap");
return NULL;
}
bitmap = cogl_bitmap_new_for_data (context,
width, height,
format,
rowstride,
data);
cogl_object_set_user_data (COGL_OBJECT (bitmap),
&bitmap_free_key,
data,
g_free);
return bitmap;
}
CoglBool
_cogl_gl_util_catch_out_of_memory (CoglContext *ctx, CoglError **error)
{
GLenum gl_error;
CoglBool out_of_memory = FALSE;
while ((gl_error = ctx->glGetError ()) != GL_NO_ERROR)
{
if (gl_error == GL_OUT_OF_MEMORY)
out_of_memory = TRUE;
#ifdef COGL_GL_DEBUG
else
{
g_warning ("%s: GL error (%d): %s\n",
G_STRLOC,
gl_error,
_cogl_gl_error_to_string (gl_error));
}
#endif
}
if (out_of_memory)
{
_cogl_set_error (error, COGL_SYSTEM_ERROR,
COGL_SYSTEM_ERROR_NO_MEMORY,
"Out of memory");
return TRUE;
}
return FALSE;
}
static CoglBool
_cogl_winsys_egl_onscreen_init (CoglOnscreen *onscreen,
EGLConfig egl_config,
CoglError **error)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
CoglContext *context = framebuffer->context;
CoglDisplay *display = context->display;
CoglDisplayEGL *egl_display = display->winsys;
CoglDisplayGDL *gdl_display = egl_display->platform;
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
if (gdl_display->have_onscreen)
{
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_ONSCREEN,
"EGL platform only supports a single onscreen window");
return FALSE;
}
egl_onscreen->egl_surface = egl_display->egl_surface;
_cogl_framebuffer_winsys_update_size (framebuffer,
gdl_display->egl_surface_width,
gdl_display->egl_surface_height);
gdl_display->have_onscreen = TRUE;
return TRUE;
}
static CoglBool
connect_custom_winsys (CoglRenderer *renderer,
CoglError **error)
{
const CoglWinsysVtable *winsys = renderer->custom_winsys_vtable_getter();
CoglError *tmp_error = NULL;
GString *error_message;
renderer->winsys_vtable = winsys;
error_message = g_string_new ("");
if (!winsys->renderer_connect (renderer, &tmp_error))
{
g_string_append_c (error_message, '\n');
g_string_append (error_message, tmp_error->message);
cogl_error_free (tmp_error);
}
else
{
renderer->connected = TRUE;
g_string_free (error_message, TRUE);
return TRUE;
}
renderer->winsys_vtable = NULL;
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"Failed to connected to any renderer: %s",
error_message->str);
g_string_free (error_message, TRUE);
return FALSE;
}
CoglTexture2D *
_cogl_texture_2d_new_from_bitmap (CoglBitmap *bmp,
CoglPixelFormat internal_format,
CoglBool can_convert_in_place,
CoglError **error)
{
CoglContext *ctx;
_COGL_RETURN_VAL_IF_FAIL (bmp != NULL, NULL);
ctx = _cogl_bitmap_get_context (bmp);
internal_format =
_cogl_texture_determine_internal_format (cogl_bitmap_get_format (bmp),
internal_format);
if (!_cogl_texture_2d_can_create (ctx,
cogl_bitmap_get_width (bmp),
cogl_bitmap_get_height (bmp),
internal_format))
{
_cogl_set_error (error, COGL_TEXTURE_ERROR,
COGL_TEXTURE_ERROR_SIZE,
"Failed to create texture 2d due to size/format"
" constraints");
return NULL;
}
return ctx->driver_vtable->texture_2d_new_from_bitmap (bmp,
internal_format,
can_convert_in_place,
error);
}
static CoglBool
_cogl_winsys_egl_context_created (CoglDisplay *display,
CoglError **error)
{
CoglRenderer *renderer = display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglDisplayEGL *egl_display = display->winsys;
if ((egl_renderer->private_features &
COGL_EGL_WINSYS_FEATURE_SURFACELESS_CONTEXT) == 0 &&
!make_dummy_surface(display, error))
return FALSE;
if (!_cogl_winsys_egl_make_current (display,
egl_display->dummy_surface,
egl_display->dummy_surface,
egl_display->egl_context))
{
_cogl_set_error (error,
COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"%s",
"Unable to eglMakeCurrent with dummy surface");
}
return TRUE;
}
static Display *
assert_xlib_display (CoglRenderer *renderer, CoglError **error)
{
Display *xdpy = cogl_xlib_renderer_get_foreign_display (renderer);
CoglXlibRenderer *xlib_renderer = _cogl_xlib_renderer_get_data (renderer);
/* A foreign display may have already been set... */
if (xdpy)
{
xlib_renderer->xdpy = xdpy;
return xdpy;
}
xdpy = XOpenDisplay (_cogl_x11_display_name);
if (xdpy == NULL)
{
_cogl_set_error (error,
COGL_RENDERER_ERROR,
COGL_RENDERER_ERROR_XLIB_DISPLAY_OPEN,
"Failed to open X Display %s", _cogl_x11_display_name);
return NULL;
}
xlib_renderer->xdpy = xdpy;
return xdpy;
}
static CoglBool
check_gl_version (CoglContext *ctx,
char **gl_extensions,
CoglError **error)
{
int major, minor;
if (!_cogl_get_gl_version (ctx, &major, &minor))
{
_cogl_set_error (error,
COGL_DRIVER_ERROR,
COGL_DRIVER_ERROR_UNKNOWN_VERSION,
"The OpenGL version could not be determined");
return FALSE;
}
/* GL 1.3 supports all of the required functionality in core */
if (COGL_CHECK_GL_VERSION (major, minor, 1, 3))
return TRUE;
/* OpenGL 1.2 is only supported if we have the multitexturing
extension */
if (!_cogl_check_extension ("GL_ARB_multitexture", gl_extensions))
{
_cogl_set_error (error,
COGL_DRIVER_ERROR,
COGL_DRIVER_ERROR_INVALID_VERSION,
"The OpenGL driver is missing "
"the GL_ARB_multitexture extension");
return FALSE;
}
/* OpenGL 1.2 is required */
if (!COGL_CHECK_GL_VERSION (major, minor, 1, 2))
{
_cogl_set_error (error,
COGL_DRIVER_ERROR,
COGL_DRIVER_ERROR_INVALID_VERSION,
"The OpenGL version of your driver (%i.%i) "
"is not compatible with Cogl",
major, minor);
return FALSE;
}
return TRUE;
}
static CoglBool
_cogl_winsys_onscreen_init (CoglOnscreen *onscreen,
CoglError **error)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
CoglContext *context = framebuffer->context;
CoglDisplay *display = context->display;
CoglDisplayEGL *egl_display = display->winsys;
CoglRenderer *renderer = display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
EGLint attributes[MAX_EGL_CONFIG_ATTRIBS];
EGLConfig egl_config;
EGLint config_count = 0;
EGLBoolean status;
_COGL_RETURN_VAL_IF_FAIL (egl_display->egl_context, FALSE);
egl_attributes_from_framebuffer_config (display,
&framebuffer->config,
attributes);
status = eglChooseConfig (egl_renderer->edpy,
attributes,
&egl_config, 1,
&config_count);
if (status != EGL_TRUE || config_count == 0)
{
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_ONSCREEN,
"Failed to find a suitable EGL configuration");
return FALSE;
}
/* Update the real number of samples_per_pixel now that we have
* found an egl_config... */
if (framebuffer->config.samples_per_pixel)
{
EGLint samples;
status = eglGetConfigAttrib (egl_renderer->edpy,
egl_config,
EGL_SAMPLES, &samples);
g_return_val_if_fail (status == EGL_TRUE, TRUE);
framebuffer->samples_per_pixel = samples;
}
onscreen->winsys = g_slice_new0 (CoglOnscreenEGL);
if (egl_renderer->platform_vtable->onscreen_init &&
!egl_renderer->platform_vtable->onscreen_init (onscreen,
egl_config,
error))
{
g_slice_free (CoglOnscreenEGL, onscreen->winsys);
return FALSE;
}
return TRUE;
}
static CoglBool
_cogl_texture_rectangle_can_create (CoglContext *ctx,
unsigned int width,
unsigned int height,
CoglPixelFormat internal_format,
CoglError **error)
{
GLenum gl_intformat;
GLenum gl_format;
GLenum gl_type;
if (!cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_RECTANGLE))
{
_cogl_set_error (error,
COGL_TEXTURE_ERROR,
COGL_TEXTURE_ERROR_TYPE,
"The CoglTextureRectangle feature isn't available");
return FALSE;
}
ctx->driver_vtable->pixel_format_to_gl (ctx,
internal_format,
&gl_intformat,
&gl_format,
&gl_type);
/* Check that the driver can create a texture with that size */
if (!ctx->texture_driver->size_supported (ctx,
GL_TEXTURE_RECTANGLE_ARB,
gl_intformat,
gl_format,
gl_type,
width,
height))
{
_cogl_set_error (error,
COGL_TEXTURE_ERROR,
COGL_TEXTURE_ERROR_SIZE,
"The requested texture size + format is unsupported");
return FALSE;
}
return TRUE;
}
static gboolean
allocate_custom_egl_image_external (CoglTexture2D *tex_2d,
CoglTextureLoader *loader,
CoglError **error)
{
CoglTexture *tex = COGL_TEXTURE (tex_2d);
CoglContext *ctx = tex->context;
CoglPixelFormat external_format;
CoglPixelFormat internal_format;
external_format = loader->src.egl_image_external.format;
internal_format = _cogl_texture_determine_internal_format (tex,
external_format);
_cogl_gl_util_clear_gl_errors (ctx);
GE (ctx, glActiveTexture (GL_TEXTURE0));
GE (ctx, glGenTextures (1, &tex_2d->gl_texture));
GE (ctx, glBindTexture (GL_TEXTURE_EXTERNAL_OES,
tex_2d->gl_texture));
if (_cogl_gl_util_get_error (ctx) != GL_NO_ERROR)
{
_cogl_set_error (error,
COGL_TEXTURE_ERROR,
COGL_TEXTURE_ERROR_BAD_PARAMETER,
"Could not create a CoglTexture2D from a given "
"EGLImage");
GE( ctx, glDeleteTextures (1, &tex_2d->gl_texture) );
return FALSE;
}
GE (ctx, glTexParameteri(GL_TEXTURE_EXTERNAL_OES,
GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
GE (ctx, glTexParameteri(GL_TEXTURE_EXTERNAL_OES,
GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
if (!loader->src.egl_image_external.alloc (tex_2d,
tex_2d->egl_image_external.user_data,
error))
{
GE (ctx, glBindTexture (GL_TEXTURE_EXTERNAL_OES, 0));
GE (ctx, glDeleteTextures (1, &tex_2d->gl_texture));
return FALSE;
}
GE (ctx, glBindTexture (GL_TEXTURE_EXTERNAL_OES, 0));
tex_2d->internal_format = internal_format;
tex_2d->gl_target = GL_TEXTURE_EXTERNAL_OES;
return TRUE;
}
static CoglBool
make_dummy_surface (CoglDisplay *display,
CoglError **error)
{
CoglRenderer *renderer = display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglRendererWayland *wayland_renderer = egl_renderer->platform;
CoglDisplayEGL *egl_display = display->winsys;
CoglDisplayWayland *wayland_display = egl_display->platform;
const char *error_message;
wayland_display->dummy_wayland_surface =
wl_compositor_create_surface (wayland_renderer->wayland_compositor);
if (!wayland_display->dummy_wayland_surface)
{
error_message= "Failed to create a dummy wayland surface";
goto fail;
}
wayland_display->dummy_wayland_egl_native_window =
wl_egl_window_create (wayland_display->dummy_wayland_surface,
1,
1);
if (!wayland_display->dummy_wayland_egl_native_window)
{
error_message= "Failed to create a dummy wayland native egl surface";
goto fail;
}
egl_display->dummy_surface =
eglCreateWindowSurface (egl_renderer->edpy,
egl_display->egl_config,
(EGLNativeWindowType)
wayland_display->dummy_wayland_egl_native_window,
NULL);
if (egl_display->dummy_surface == EGL_NO_SURFACE)
{
error_message= "Unable to create dummy window surface";
goto fail;
}
return TRUE;
fail:
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"%s", error_message);
return FALSE;
}
CoglBool
cogl_pipeline_set_depth_state (CoglPipeline *pipeline,
const CoglDepthState *depth_state,
CoglError **error)
{
CoglPipelineState state = COGL_PIPELINE_STATE_DEPTH;
CoglPipeline *authority;
CoglDepthState *orig_state;
_COGL_GET_CONTEXT (ctx, FALSE);
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), FALSE);
_COGL_RETURN_VAL_IF_FAIL (depth_state->magic == COGL_DEPTH_STATE_MAGIC, FALSE);
authority = _cogl_pipeline_get_authority (pipeline, state);
orig_state = &authority->big_state->depth_state;
if (orig_state->test_enabled == depth_state->test_enabled &&
orig_state->write_enabled == depth_state->write_enabled &&
orig_state->test_function == depth_state->test_function &&
orig_state->range_near == depth_state->range_near &&
orig_state->range_far == depth_state->range_far)
return TRUE;
if (ctx->driver == COGL_DRIVER_GLES1 &&
(depth_state->range_near != 0 ||
depth_state->range_far != 1))
{
_cogl_set_error (error,
COGL_SYSTEM_ERROR,
COGL_SYSTEM_ERROR_UNSUPPORTED,
"glDepthRange not available on GLES 1");
return FALSE;
}
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
pipeline->big_state->depth_state = *depth_state;
_cogl_pipeline_update_authority (pipeline, authority, state,
_cogl_pipeline_depth_state_equal);
return TRUE;
}
static CoglBool
_cogl_winsys_egl_context_created (CoglDisplay *display,
CoglError **error)
{
CoglRenderer *renderer = display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglDisplayEGL *egl_display = display->winsys;
CoglDisplayGDL *gdl_display = egl_display->platform;
const char *error_message;
egl_display->egl_surface =
eglCreateWindowSurface (egl_renderer->edpy,
egl_display->egl_config,
(NativeWindowType) display->gdl_plane,
NULL);
if (egl_display->egl_surface == EGL_NO_SURFACE)
{
error_message = "Unable to create EGL window surface";
goto fail;
}
if (!_cogl_winsys_egl_make_current (display,
egl_display->egl_surface,
egl_display->egl_surface,
egl_display->egl_context))
{
error_message = "Unable to eglMakeCurrent with egl surface";
goto fail;
}
eglQuerySurface (egl_renderer->edpy,
egl_display->egl_surface,
EGL_WIDTH,
&gdl_display->egl_surface_width);
eglQuerySurface (egl_renderer->edpy,
egl_display->egl_surface,
EGL_HEIGHT,
&gdl_display->egl_surface_height);
return TRUE;
fail:
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"%s", error_message);
return FALSE;
}
static CoglBool
validate_statements_for_context (CoglBlendStringStatement *statements,
int n_statements,
CoglBlendStringContext context,
CoglError **error)
{
const char *error_string;
if (n_statements == 1)
{
if (statements[0].mask == COGL_BLEND_STRING_CHANNEL_MASK_ALPHA)
{
error_string = "You need to also give a blend statement for the RGB"
"channels";
goto error;
}
else if (statements[0].mask == COGL_BLEND_STRING_CHANNEL_MASK_RGB)
{
error_string = "You need to also give a blend statement for the "
"Alpha channel";
goto error;
}
}
if (context == COGL_BLEND_STRING_CONTEXT_BLENDING)
return validate_blend_statements (statements, n_statements, error);
else
return validate_tex_combine_statements (statements, n_statements, error);
error:
_cogl_set_error (error,
COGL_BLEND_STRING_ERROR,
COGL_BLEND_STRING_ERROR_INVALID_ERROR,
"Invalid %s string: %s",
context == COGL_BLEND_STRING_CONTEXT_BLENDING ?
"blend" : "texture combine",
error_string);
if (COGL_DEBUG_ENABLED (COGL_DEBUG_BLEND_STRINGS))
{
g_debug ("Invalid %s string: %s",
context == COGL_BLEND_STRING_CONTEXT_BLENDING ?
"blend" : "texture combine",
error_string);
}
return FALSE;
}
static CoglBool
_cogl_winsys_renderer_connect (CoglRenderer *renderer,
CoglError **error)
{
if (SDL_VideoInit (NULL) < 0)
{
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"SDL_Init failed: %s",
SDL_GetError ());
return FALSE;
}
renderer->winsys = g_slice_new0 (CoglRendererSdl2);
return TRUE;
}
static CoglBool
validate_tex_combine_statements (CoglBlendStringStatement *statements,
int n_statements,
CoglError **error)
{
int i, j;
const char *error_string;
CoglBlendStringError detail = COGL_BLEND_STRING_ERROR_INVALID_ERROR;
for (i = 0; i < n_statements; i++)
{
for (j = 0; j < statements[i].function->argc; j++)
{
CoglBlendStringArgument *arg = &statements[i].args[j];
if (arg->source.is_zero)
{
error_string = "You can't use the constant '0' as a texture "
"combine argument";
goto error;
}
if (!arg->factor.is_one)
{
error_string = "Argument factors are only relevant to blending "
"not texture combining";
goto error;
}
}
}
return TRUE;
error:
_cogl_set_error (error,
COGL_BLEND_STRING_ERROR,
detail,
"Invalid texture combine string: %s",
error_string);
if (COGL_DEBUG_ENABLED (COGL_DEBUG_BLEND_STRINGS))
{
g_debug ("Invalid texture combine string: %s",
error_string);
}
return FALSE;
}
static CoglBool
_cogl_winsys_onscreen_init (CoglOnscreen *onscreen,
CoglError **error)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
CoglOnscreenSdl2 *sdl_onscreen;
SDL_Window *window;
int width, height;
SDL_WindowFlags flags;
width = cogl_framebuffer_get_width (framebuffer);
height = cogl_framebuffer_get_height (framebuffer);
flags = SDL_WINDOW_OPENGL | SDL_WINDOW_HIDDEN;
/* The resizable property on SDL window apparently can only be set
* on creation */
if (onscreen->resizable)
flags |= SDL_WINDOW_RESIZABLE;
window = SDL_CreateWindow ("" /* title */,
0, 0, /* x/y */
width, height,
flags);
if (window == NULL)
{
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_ONSCREEN,
"SDL_CreateWindow failed: %s",
SDL_GetError ());
return FALSE;
}
SDL_SetWindowData (window, COGL_SDL_WINDOW_DATA_KEY, onscreen);
onscreen->winsys = g_slice_new (CoglOnscreenSdl2);
sdl_onscreen = onscreen->winsys;
sdl_onscreen->window = window;
return TRUE;
}
CoglBool
_cogl_winsys_egl_renderer_connect_common (CoglRenderer *renderer,
CoglError **error)
{
CoglRendererEGL *egl_renderer = renderer->winsys;
if (!eglInitialize (egl_renderer->edpy,
&egl_renderer->egl_version_major,
&egl_renderer->egl_version_minor))
{
_cogl_set_error (error, COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_INIT,
"Couldn't initialize EGL");
return FALSE;
}
check_egl_extensions (renderer);
return TRUE;
}
static gboolean
_cogl_texture_pixmap_x11_set_region (CoglTexture *tex,
int src_x,
int src_y,
int dst_x,
int dst_y,
int dst_width,
int dst_height,
int level,
CoglBitmap *bmp,
CoglError **error)
{
/* This doesn't make much sense for texture from pixmap so it's not
supported */
_cogl_set_error (error,
COGL_SYSTEM_ERROR,
COGL_SYSTEM_ERROR_UNSUPPORTED,
"Explicitly setting a region of a TFP texture unsupported");
return FALSE;
}
static CoglBool
_cogl_texture_3d_set_region (CoglTexture *tex,
int src_x,
int src_y,
int dst_x,
int dst_y,
int dst_width,
int dst_height,
int level,
CoglBitmap *bmp,
CoglError **error)
{
/* This function doesn't really make sense for 3D textures because
it can't specify which image to upload to */
_cogl_set_error (error,
COGL_SYSTEM_ERROR,
COGL_SYSTEM_ERROR_UNSUPPORTED,
"Setting a 2D region on a 3D texture isn't "
"currently supported");
return FALSE;
}
static gboolean
allocate_from_egl_image (CoglTexture2D *tex_2d,
CoglTextureLoader *loader,
CoglError **error)
{
CoglTexture *tex = COGL_TEXTURE (tex_2d);
CoglContext *ctx = tex->context;
CoglPixelFormat internal_format = loader->src.egl_image.format;
tex_2d->gl_texture =
ctx->texture_driver->gen (ctx, GL_TEXTURE_2D, internal_format);
_cogl_bind_gl_texture_transient (GL_TEXTURE_2D,
tex_2d->gl_texture,
FALSE);
_cogl_gl_util_clear_gl_errors (ctx);
ctx->glEGLImageTargetTexture2D (GL_TEXTURE_2D, loader->src.egl_image.image);
if (_cogl_gl_util_get_error (ctx) != GL_NO_ERROR)
{
_cogl_set_error (error,
COGL_TEXTURE_ERROR,
COGL_TEXTURE_ERROR_BAD_PARAMETER,
"Could not create a CoglTexture2D from a given "
"EGLImage");
GE( ctx, glDeleteTextures (1, &tex_2d->gl_texture) );
return FALSE;
}
tex_2d->internal_format = internal_format;
_cogl_texture_set_allocated (tex,
internal_format,
loader->src.egl_image.width,
loader->src.egl_image.height);
return TRUE;
}
