sp_fs.h File Reference

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Functions
struct sp_fragment_shader *	softpipe_create_fs_exec (struct softpipe_context *softpipe, const struct pipe_shader_state *templ)
struct sp_fragment_shader *	softpipe_create_fs_sse (struct softpipe_context *softpipe, const struct pipe_shader_state *templ)
struct sp_fragment_shader *	softpipe_create_fs_llvm (struct softpipe_context *softpipe, const struct pipe_shader_state *templ)
void	sp_setup_pos_vector (const struct tgsi_interp_coef *coef, float x, float y, struct tgsi_exec_vector *quadpos)
	Compute quad X,Y,Z,W for the four fragments in a quad.

---

Function Documentation

struct sp_fragment_shader* softpipe_create_fs_exec	(	struct softpipe_context *	softpipe,
		const struct pipe_shader_state *	templ
	)			[read]

Definition at line 129 of file sp_fs_exec.c.

References sp_exec_fragment_shader::base, CALLOC_STRUCT, sp_fragment_shader::delete, exec_delete(), exec_prepare(), exec_run(), sp_fragment_shader::prepare, sp_fragment_shader::run, sp_fragment_shader::shader, tgsi_dup_tokens(), and pipe_shader_state::tokens.

{
   struct sp_exec_fragment_shader *shader;

   /* Decide whether we'll be codegenerating this shader and if so do
    * that now.
    */

   shader = CALLOC_STRUCT(sp_exec_fragment_shader);
   if (!shader)
      return NULL;

   /* we need to keep a local copy of the tokens */
   shader->base.shader.tokens = tgsi_dup_tokens(templ->tokens);
   shader->base.prepare = exec_prepare;
   shader->base.run = exec_run;
   shader->base.delete = exec_delete;

   return &shader->base;
}

struct sp_fragment_shader* softpipe_create_fs_llvm	(	struct softpipe_context *	softpipe,
		const struct pipe_shader_state *	templ
	)			[read]

Definition at line 194 of file sp_fs_llvm.c.

{
   return NULL;
}

struct sp_fragment_shader* softpipe_create_fs_sse	(	struct softpipe_context *	softpipe,
		const struct pipe_shader_state *	templ
	)			[read]

Definition at line 161 of file sp_fs_sse.c.

{

void sp_setup_pos_vector	(	const struct tgsi_interp_coef *	coef,
		float	x,
		float	y,
		struct tgsi_exec_vector *	quadpos
	)

Compute quad X,Y,Z,W for the four fragments in a quad.

This should really be part of the compiled shader.

Definition at line 54 of file sp_fs_exec.c.

References tgsi_interp_coef::a0, tgsi_interp_coef::dadx, tgsi_interp_coef::dady, tgsi_exec_channel::f, and tgsi_exec_vector::xyzw.

{
   uint chan;
   /* do X */
   quadpos->xyzw[0].f[0] = x;
   quadpos->xyzw[0].f[1] = x + 1;
   quadpos->xyzw[0].f[2] = x;
   quadpos->xyzw[0].f[3] = x + 1;

   /* do Y */
   quadpos->xyzw[1].f[0] = y;
   quadpos->xyzw[1].f[1] = y;
   quadpos->xyzw[1].f[2] = y + 1;
   quadpos->xyzw[1].f[3] = y + 1;

   /* do Z and W for all fragments in the quad */
   for (chan = 2; chan < 4; chan++) {
      const float dadx = coef->dadx[chan];
      const float dady = coef->dady[chan];
      const float a0 = coef->a0[chan] + dadx * x + dady * y;
      quadpos->xyzw[chan].f[0] = a0;
      quadpos->xyzw[chan].f[1] = a0 + dadx;
      quadpos->xyzw[chan].f[2] = a0 + dady;
      quadpos->xyzw[chan].f[3] = a0 + dadx + dady;
   }
}

---