rdpq_tex_internal.h File Reference

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Typedefs
typedef void(*	large_tex_draw) (rdpq_tile_t tile, const surface_t *tex, int s0, int t0, int s1, int t1, void(*draw_cb) (rdpq_tile_t tile, int s0, int t0, int s1, int t1), bool filtering)
	Helper function to draw a large surface that doesn't fit in TMEM.

Functions
void	__rdpq_tex_blit (const surface_t *surf, float x0, float y0, const rdpq_blitparms_t *parms, large_tex_draw ltd)
	Internal implementation of rdpq_tex_blit, using a custom large tex loader callback function.

Detailed Description

Author

Dennis Heinze denni.nosp@m.sjp..nosp@m.heinz.nosp@m.e@gm.nosp@m.ail.c.nosp@m.om

Typedef Documentation

large_tex_draw

typedef void(* large_tex_draw) (rdpq_tile_t tile, const surface_t *tex, int s0, int t0, int s1, int t1, void(*draw_cb)(rdpq_tile_t tile, int s0, int t0, int s1, int t1), bool filtering)

Helper function to draw a large surface that doesn't fit in TMEM.

This function analyzes the surface, finds the optimal splitting strategy to divided into rectangles that fit TMEM, and then go through them one of by one, loading them into TMEM and drawing them.

The actual drawing is done by the caller, through the draw_cb function. This function will just call it with the information on the current rectangle within the original surface.

Parameters

tile	Hint of the tile to use. Note that this function is free to use other tiles to perform its job.
tex	Surface to draw
s0	Starting X coordinate in the texture to draw
t0	Starting Y coordinate in the texture to draw
s1	Ending X coordinate in the texture to draw
t1	Ending Y coordinate in the texture to draw
draw_cb	Callback function to draw rectangle by rectangle. It will be called with the tile to use for drawing, and the rectangle of the original surface that has been loaded into TMEM.
filtering	Enable texture filtering workaround