sp_clear.h File Reference

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Functions

void softpipe_clear (struct pipe_context *pipe, struct pipe_surface *ps, unsigned clearValue)
 Clear the given surface to the specified value.


Function Documentation

void softpipe_clear ( struct pipe_context pipe,
struct pipe_surface ps,
unsigned  clearValue 
)

Clear the given surface to the specified value.

No masking, no scissor (clear entire buffer). Note: when clearing a color buffer, the clearValue is always encoded as PIPE_FORMAT_A8R8G8B8_UNORM.

Definition at line 67 of file sp_clear.c.

References softpipe_context::cbuf_cache, pipe_framebuffer_state::cbufs, convert_color(), pipe_surface::format, softpipe_context::framebuffer, pipe_surface::height, softpipe_context::no_rast, pipe_framebuffer_state::num_cbufs, PIPE_FORMAT_A8R8G8B8_UNORM, PIPE_SURFACE_STATUS_CLEAR, softpipe_context(), softpipe_update_derived(), sp_tile_cache_clear(), sp_tile_cache_get_surface(), pipe_surface::status, pipe_context::surface_fill, pipe_surface::width, pipe_framebuffer_state::zsbuf, and softpipe_context::zsbuf_cache.

00069 {
00070    struct softpipe_context *softpipe = softpipe_context(pipe);
00071    uint i;
00072 
00073    if (softpipe->no_rast)
00074       return;
00075 
00076 #if 0
00077    softpipe_update_derived(softpipe); /* not needed?? */
00078 #endif
00079 
00080    if (ps == sp_tile_cache_get_surface(softpipe->zsbuf_cache)) {
00081       sp_tile_cache_clear(softpipe->zsbuf_cache, clearValue);
00082       softpipe->framebuffer.zsbuf->status = PIPE_SURFACE_STATUS_CLEAR;
00083 #if TILE_CLEAR_OPTIMIZATION
00084       return;
00085 #endif
00086    }
00087 
00088    for (i = 0; i < softpipe->framebuffer.num_cbufs; i++) {
00089       if (ps == sp_tile_cache_get_surface(softpipe->cbuf_cache[i])) {
00090          unsigned cv;
00091          if (ps->format != PIPE_FORMAT_A8R8G8B8_UNORM) {
00092             cv = convert_color(PIPE_FORMAT_A8R8G8B8_UNORM, clearValue,
00093                                ps->format);
00094          }
00095          else {
00096             cv = clearValue;
00097          }
00098          sp_tile_cache_clear(softpipe->cbuf_cache[i], cv);
00099          softpipe->framebuffer.cbufs[i]->status = PIPE_SURFACE_STATUS_CLEAR;
00100       }
00101    }
00102 
00103 #if !TILE_CLEAR_OPTIMIZATION
00104    /* non-cached surface */
00105    pipe->surface_fill(pipe, ps, 0, 0, ps->width, ps->height, clearValue);
00106 #endif
00107 }


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