sp_draw_arrays.c File Reference

Include dependency graph for sp_draw_arrays.c:

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Functions
static void	softpipe_map_constant_buffers (struct softpipe_context *sp)
static void	softpipe_unmap_constant_buffers (struct softpipe_context *sp)
boolean	softpipe_draw_arrays (struct pipe_context *pipe, unsigned mode, unsigned start, unsigned count)
boolean	softpipe_draw_range_elements (struct pipe_context *pipe, struct pipe_buffer *indexBuffer, unsigned indexSize, unsigned min_index, unsigned max_index, unsigned mode, unsigned start, unsigned count)
	Draw vertex arrays, with optional indexing.
boolean	softpipe_draw_elements (struct pipe_context *pipe, struct pipe_buffer *indexBuffer, unsigned indexSize, unsigned mode, unsigned start, unsigned count)
void	softpipe_set_edgeflags (struct pipe_context *pipe, const unsigned *edgeflags)
Variables
static unsigned	reduced_prim [PIPE_PRIM_POLYGON+1]

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Function Documentation

boolean softpipe_draw_arrays	(	struct pipe_context *	pipe,
		unsigned	mode,
		unsigned	start,
		unsigned	count
	)

Definition at line 98 of file sp_draw_arrays.c.

References softpipe_draw_elements().

{
   return softpipe_draw_elements(pipe, NULL, 0, mode, start, count);
}

boolean softpipe_draw_elements	(	struct pipe_context *	pipe,
		struct pipe_buffer *	indexBuffer,
		unsigned	indexSize,
		unsigned	mode,
		unsigned	start,
		unsigned	count
	)

Definition at line 183 of file sp_draw_arrays.c.

References softpipe_draw_range_elements().

{
   return softpipe_draw_range_elements( pipe, indexBuffer,
                                        indexSize,
                                        0, 0xffffffff,
                                        mode, start, count );
}

boolean softpipe_draw_range_elements	(	struct pipe_context *	pipe,
		struct pipe_buffer *	indexBuffer,
		unsigned	indexSize,
		unsigned	min_index,
		unsigned	max_index,
		unsigned	mode,
		unsigned	start,
		unsigned	count
	)

Draw vertex arrays, with optional indexing.

Basically, map the vertex buffers (and drawing surfaces), then hand off the drawing to the 'draw' module.

XXX should the element buffer be specified/bound with a separate function?

Definition at line 115 of file sp_draw_arrays.c.

References pipe_vertex_buffer::buffer, softpipe_context::dirty, softpipe_context::draw, draw, draw_arrays(), draw_set_mapped_element_buffer(), draw_set_mapped_element_buffer_range(), draw_set_mapped_vertex_buffer(), softpipe_context::num_vertex_buffers, pipe_buffer_map(), pipe_buffer_unmap(), PIPE_BUFFER_USAGE_CPU_READ, softpipe_context::reduced_api_prim, reduced_prim, pipe_context::screen, softpipe_context(), softpipe_map_constant_buffers(), softpipe_map_surfaces(), softpipe_unmap_constant_buffers(), softpipe_update_derived(), TRUE, and softpipe_context::vertex_buffer.

{
   struct softpipe_context *sp = softpipe_context(pipe);
   struct draw_context *draw = sp->draw;
   unsigned i;

   sp->reduced_api_prim = reduced_prim[mode];

   if (sp->dirty)
      softpipe_update_derived( sp );

   softpipe_map_surfaces(sp);
   softpipe_map_constant_buffers(sp);

   /*
    * Map vertex buffers
    */
   for (i = 0; i < sp->num_vertex_buffers; i++) {
      void *buf
         = pipe_buffer_map(pipe->screen,
                                    sp->vertex_buffer[i].buffer,
                                    PIPE_BUFFER_USAGE_CPU_READ);
      draw_set_mapped_vertex_buffer(draw, i, buf);
   }
   /* Map index buffer, if present */
   if (indexBuffer) {
      void *mapped_indexes
         = pipe_buffer_map(pipe->screen, indexBuffer,
                                    PIPE_BUFFER_USAGE_CPU_READ);
      draw_set_mapped_element_buffer_range(draw, indexSize,
                                           min_index,
                                           max_index,
                                           mapped_indexes);
   }
   else {
      /* no index/element buffer */
      draw_set_mapped_element_buffer_range(draw, 0, start, start + count - 1, NULL);
   }


   /* draw! */
   draw_arrays(draw, mode, start, count);

   /*
    * unmap vertex/index buffers - will cause draw module to flush
    */
   for (i = 0; i < sp->num_vertex_buffers; i++) {
      draw_set_mapped_vertex_buffer(draw, i, NULL);
      pipe_buffer_unmap(pipe->screen, sp->vertex_buffer[i].buffer);
   }
   if (indexBuffer) {
      draw_set_mapped_element_buffer(draw, 0, NULL);
      pipe_buffer_unmap(pipe->screen, indexBuffer);
   }


   /* Note: leave drawing surfaces mapped */
   softpipe_unmap_constant_buffers(sp);

   return TRUE;
}

static void softpipe_map_constant_buffers

(

struct softpipe_context *

sp

)

[static]

Definition at line 47 of file sp_draw_arrays.c.

References pipe_constant_buffer::buffer, pipe_winsys::buffer_map, softpipe_context::constants, softpipe_context::draw, draw_set_mapped_constant_buffer(), softpipe_context::mapped_constants, softpipe_context::pipe, PIPE_BUFFER_USAGE_CPU_READ, PIPE_SHADER_TYPES, PIPE_SHADER_VERTEX, pipe_constant_buffer::size, and pipe_context::winsys.

{
   struct pipe_winsys *ws = sp->pipe.winsys;
   uint i;
   for (i = 0; i < PIPE_SHADER_TYPES; i++) {
      if (sp->constants[i].size)
         sp->mapped_constants[i] = ws->buffer_map(ws, sp->constants[i].buffer,
                                                  PIPE_BUFFER_USAGE_CPU_READ);
   }

   draw_set_mapped_constant_buffer(sp->draw,
                                   sp->mapped_constants[PIPE_SHADER_VERTEX],
                                   sp->constants[PIPE_SHADER_VERTEX].size);
}

void softpipe_set_edgeflags	(	struct pipe_context *	pipe,
		const unsigned *	edgeflags
	)

Definition at line 197 of file sp_draw_arrays.c.

References softpipe_context::draw, draw_set_edgeflags(), and softpipe_context().

{
   struct softpipe_context *sp = softpipe_context(pipe);
   draw_set_edgeflags(sp->draw, edgeflags);
}

static void softpipe_unmap_constant_buffers

(

struct softpipe_context *

sp

)

[static]

Definition at line 63 of file sp_draw_arrays.c.

References pipe_constant_buffer::buffer, pipe_winsys::buffer_unmap, softpipe_context::constants, softpipe_context::draw, draw_flush(), draw_set_mapped_constant_buffer(), softpipe_context::mapped_constants, softpipe_context::pipe, pipe_constant_buffer::size, and pipe_context::winsys.

{
   struct pipe_winsys *ws = sp->pipe.winsys;
   uint i;

   /* really need to flush all prims since the vert/frag shaders const buffers
    * are going away now.
    */
   draw_flush(sp->draw);

   draw_set_mapped_constant_buffer(sp->draw, NULL, 0);

   for (i = 0; i < 2; i++) {
      if (sp->constants[i].size)
         ws->buffer_unmap(ws, sp->constants[i].buffer);
      sp->mapped_constants[i] = NULL;
   }
}

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Variable Documentation

unsigned reduced_prim[PIPE_PRIM_POLYGON+1] [static]

Initial value:

 {
   PIPE_PRIM_POINTS,
   PIPE_PRIM_LINES,
   PIPE_PRIM_LINES,
   PIPE_PRIM_LINES,
   PIPE_PRIM_TRIANGLES,
   PIPE_PRIM_TRIANGLES,
   PIPE_PRIM_TRIANGLES,
   PIPE_PRIM_TRIANGLES,
   PIPE_PRIM_TRIANGLES,
   PIPE_PRIM_TRIANGLES
}

Definition at line 83 of file sp_draw_arrays.c.

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