Constructor
GskGLShaderNodenew
deprecated: 4.16
Declaration [src]
GskRenderNode*
gsk_gl_shader_node_new (
GskGLShader* shader,
const graphene_rect_t* bounds,
GBytes* args,
GskRenderNode** children,
guint n_children
)
Description [src]
Creates a GskRenderNode that will render the given shader into the
area given by bounds.
The args is a block of data to use for uniform input, as per types and
offsets defined by the shader. Normally this is generated by
gsk_gl_shader_format_args() or GskShaderArgsBuilder.
See GskGLShader for details about how the shader should be written.
All the children will be rendered into textures (if they aren’t already
GskTextureNodes, which will be used directly). These textures will be
sent as input to the shader.
If the renderer doesn’t support GL shaders, or if there is any problem
when compiling the shader, then the node will draw pink. You should use
gsk_gl_shader_compile() to ensure the shader will work for the
renderer before using it.
Deprecated since: 4.16
GTK’s new Vulkan-focused rendering does not support this feature. Use GtkGLArea for OpenGL rendering.
Parameters
shader-
Type:
GskGLShaderThe
GskGLShader.The data is owned by the caller of the function. bounds-
Type:
graphene_rect_tThe rectangle to render the shader into.
The data is owned by the caller of the function. args-
Type:
GBytesArguments for the uniforms.
The data is owned by the caller of the function. children-
Type: An array of
GskRenderNode*Array of child nodes, these will be rendered to textures and used as input.
The argument can be NULL.The length of the array is specified in the n_childrenargument.The data is owned by the caller of the function. n_children-
Type:
guintLength of
children(currently the GL backend supports up to 4 children).
Return value
Type: GskGLShaderNode
A new GskRenderNode.
| The caller of the function takes ownership of the data, and is responsible for freeing it. |