CoglOffscreen

Explicitly allocates a configured CoglFramebuffer allowing developers to check and handle any errors that might arise from an unsupported configuration so that fallback configurations may be tried.

Available since: 1.8

Clears all the auxiliary buffers identified in the buffers mask, and if that includes the color buffer then the specified color is used.

Available since: 1.8

Clears all the auxiliary buffers identified in the buffers mask, and if that includes the color buffer then the specified color is used.

Available since: 1.8

Creates a query for the GPU timestamp that will complete upon completion of all previously submitted GL commands related to this framebuffer. E.g. when the rendering is finished on this framebuffer.

Declares that the specified buffers no longer need to be referenced by any further rendering commands. This can be an important optimization to avoid subsequent frames of rendering depending on the results of a previous frame.

Available since: 1.8

Draws a textured rectangle to framebuffer with the given pipeline state with the top left corner positioned at (x_1, y_1) and the bottom right corner positioned at (x_2, y_2). As a pipeline may contain multiple texture layers this interface lets you supply texture coordinates for each layer of the pipeline.

Available since: 1.10

Draws a rectangle to framebuffer with the given pipeline state and with the top left corner positioned at (x_1, y_1) and the bottom right corner positioned at (x_2, y_2).

Available since: 1.10

Draws a series of rectangles to framebuffer with the given pipeline state in the same way that cogl_framebuffer_draw_rectangle() does.

Available since: 1.10

Draws a textured rectangle to framebuffer using the given pipeline state with the top left corner positioned at (x_1, y_1) and the bottom right corner positioned at (x_2, y_2). The top left corner will have texture coordinates of (s_1, t_1) and the bottom right corner will have texture coordinates of (s_2, t_2).

Available since: 1.10

Draws a series of rectangles to framebuffer with the given pipeline state in the same way that cogl_framebuffer_draw_textured_rectangle() does.

Available since: 1.10

This blocks the CPU until all pending rendering associated with the specified framebuffer has completed. It’s very rare that developers should ever need this level of synchronization with the GPU and should never be used unless you clearly understand why you need to explicitly force synchronization.

Available since: 1.10

Flushes framebuffer to ensure the current batch of commands is submitted to the GPU.

Replaces the current projection matrix with a perspective matrix for a given viewing frustum defined by 4 side clip planes that all cross through the origin and 2 near and far clip planes.

Available since: 1.10

Retrieves the number of alpha bits of framebuffer.

Available since: 1.8

Retrieves the number of blue bits of framebuffer.

Available since: 1.8

Can be used to query the CoglContext a given framebuffer was instantiated within. This is the CoglContext that was passed to cogl_onscreen_new() for example.

Available since: 1.8

Retrieves the number of depth bits of framebuffer.

Available since: 2.0

Queries whether depth buffer writing is enabled for framebuffer. This can be controlled via cogl_framebuffer_set_depth_write_enabled().

Available since: 1.18

Returns whether dithering has been requested for the given framebuffer. See cogl_framebuffer_set_dither_enabled() for more details about dithering.

Available since: 1.8

Retrieves the number of green bits of framebuffer.

Available since: 1.8

Queries the current height of the given framebuffer.

Available since: 1.8

Stores the current model-view matrix in matrix.

Available since: 1.10