CoglTexture2D *
cogl_texture_2d_gl_new_from_foreign (CoglContext *ctx,
unsigned int gl_handle,
int width,
int height,
CoglPixelFormat format)
{
CoglTextureLoader *loader;
/* NOTE: width, height and internal format are not queriable
* in GLES, hence such a function prototype.
*/
/* Note: We always trust the given width and height without querying
* the texture object because the user may be creating a Cogl
* texture for a texture_from_pixmap object where glTexImage2D may
* not have been called and the texture_from_pixmap spec doesn't
* clarify that it is reliable to query back the size from OpenGL.
*/
/* Assert it is a valid GL texture object */
_COGL_RETURN_VAL_IF_FAIL (ctx->glIsTexture (gl_handle), FALSE);
/* Validate width and height */
_COGL_RETURN_VAL_IF_FAIL (width > 0 && height > 0, NULL);
loader = _cogl_texture_create_loader ();
loader->src_type = COGL_TEXTURE_SOURCE_TYPE_GL_FOREIGN;
loader->src.gl_foreign.gl_handle = gl_handle;
loader->src.gl_foreign.width = width;
loader->src.gl_foreign.height = height;
loader->src.gl_foreign.format = format;
return _cogl_texture_2d_create_base (ctx, width, height, format, loader);
}
/* 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)
{
CoglTextureLoader *loader;
_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);
loader = _cogl_texture_create_loader ();
loader->src_type = COGL_TEXTURE_SOURCE_TYPE_EGL_IMAGE;
loader->src.egl_image.image = image;
loader->src.egl_image.width = width;
loader->src.egl_image.height = height;
loader->src.egl_image.format = format;
return _cogl_texture_2d_create_base (ctx, width, height, format, loader);
}
CoglHandle
_cogl_texture_2d_new_with_size (unsigned int width,
unsigned int height,
CoglTextureFlags flags,
CoglPixelFormat internal_format)
{
CoglTexture2D *tex_2d;
GLenum gl_intformat;
GLenum gl_format;
GLenum gl_type;
/* Since no data, we need some internal format */
if (internal_format == COGL_PIXEL_FORMAT_ANY)
internal_format = COGL_PIXEL_FORMAT_RGBA_8888_PRE;
if (!_cogl_texture_2d_can_create (width, height, internal_format))
return COGL_INVALID_HANDLE;
internal_format = _cogl_pixel_format_to_gl (internal_format,
&gl_intformat,
&gl_format,
&gl_type);
tex_2d = _cogl_texture_2d_create_base (width, height, flags, internal_format);
_cogl_texture_driver_gen (GL_TEXTURE_2D, 1, &tex_2d->gl_texture);
GE( glBindTexture (GL_TEXTURE_2D, tex_2d->gl_texture) );
GE( glTexImage2D (GL_TEXTURE_2D, 0, gl_intformat,
width, height, 0, gl_format, gl_type, NULL) );
return _cogl_texture_2d_handle_new (tex_2d);
}
CoglHandle
_cogl_texture_2d_new_from_bitmap (CoglHandle bmp_handle,
CoglTextureFlags flags,
CoglPixelFormat internal_format)
{
CoglTexture2D *tex_2d;
CoglBitmap *bmp = (CoglBitmap *)bmp_handle;
CoglBitmap dst_bmp;
gboolean dst_bmp_owner;
GLenum gl_intformat;
GLenum gl_format;
GLenum gl_type;
g_return_val_if_fail (bmp_handle != COGL_INVALID_HANDLE, COGL_INVALID_HANDLE);
internal_format = _cogl_texture_determine_internal_format (bmp->format,
internal_format);
if (!_cogl_texture_2d_can_create (bmp->width, bmp->height, internal_format))
return COGL_INVALID_HANDLE;
if (!_cogl_texture_prepare_for_upload (bmp,
internal_format,
&internal_format,
&dst_bmp,
&dst_bmp_owner,
&gl_intformat,
&gl_format,
&gl_type))
return COGL_INVALID_HANDLE;
tex_2d = _cogl_texture_2d_create_base (bmp->width,
bmp->height,
flags,
internal_format);
_cogl_texture_driver_gen (GL_TEXTURE_2D, 1, &tex_2d->gl_texture);
_cogl_texture_driver_upload_to_gl (GL_TEXTURE_2D,
tex_2d->gl_texture,
&dst_bmp,
gl_intformat,
gl_format,
gl_type);
tex_2d->gl_format = gl_intformat;
if (dst_bmp_owner)
g_free (dst_bmp.data);
return _cogl_texture_2d_handle_new (tex_2d);
}
CoglTexture2D *
cogl_texture_2d_new_with_size (CoglContext *ctx,
int width,
int height,
CoglPixelFormat internal_format)
{
/* Since no data, we need some internal format */
if (internal_format == COGL_PIXEL_FORMAT_ANY)
internal_format = COGL_PIXEL_FORMAT_RGBA_8888_PRE;
return _cogl_texture_2d_create_base (ctx,
width, height,
internal_format);
}
CoglTexture2D *
cogl_texture_2d_new_with_size (CoglContext *ctx,
int width,
int height)
{
CoglTextureLoader *loader;
loader = _cogl_texture_create_loader ();
loader->src_type = COGL_TEXTURE_SOURCE_TYPE_SIZED;
loader->src.sized.width = width;
loader->src.sized.height = height;
return _cogl_texture_2d_create_base (ctx, width, height,
COGL_PIXEL_FORMAT_RGBA_8888_PRE, loader);
}
static CoglTexture2D *
_cogl_texture_2d_new_from_bitmap (CoglBitmap *bmp,
CoglBool can_convert_in_place)
{
CoglTextureLoader *loader;
_COGL_RETURN_VAL_IF_FAIL (bmp != NULL, NULL);
loader = _cogl_texture_create_loader ();
loader->src_type = COGL_TEXTURE_SOURCE_TYPE_BITMAP;
loader->src.bitmap.bitmap = cogl_object_ref (bmp);
loader->src.bitmap.can_convert_in_place = can_convert_in_place;
return _cogl_texture_2d_create_base (_cogl_bitmap_get_context (bmp),
cogl_bitmap_get_width (bmp),
cogl_bitmap_get_height (bmp),
cogl_bitmap_get_format (bmp),
loader);
}
CoglTexture2D *
cogl_texture_2d_new_from_egl_image_external (CoglContext *ctx,
int width,
int height,
CoglTexture2DEGLImageExternalAlloc alloc,
gpointer user_data,
GDestroyNotify destroy,
CoglError **error)
{
CoglTextureLoader *loader;
CoglTexture2D *tex_2d;
CoglPixelFormat internal_format = COGL_PIXEL_FORMAT_ANY;
_COGL_RETURN_VAL_IF_FAIL (_cogl_context_get_winsys (ctx)->constraints &
COGL_RENDERER_CONSTRAINT_USES_EGL,
NULL);
_COGL_RETURN_VAL_IF_FAIL (cogl_has_feature (ctx,
COGL_FEATURE_ID_TEXTURE_EGL_IMAGE_EXTERNAL),
NULL);
loader = _cogl_texture_create_loader ();
loader->src_type = COGL_TEXTURE_SOURCE_TYPE_EGL_IMAGE_EXTERNAL;
loader->src.egl_image_external.width = width;
loader->src.egl_image_external.height = height;
loader->src.egl_image_external.alloc = alloc;
loader->src.egl_image_external.format = internal_format;
tex_2d = _cogl_texture_2d_create_base (ctx, width, height,
internal_format, loader);
tex_2d->egl_image_external.user_data = user_data;
tex_2d->egl_image_external.destroy = destroy;
return tex_2d;
}
