st_atom_depth.c File Reference

Include dependency graph for st_atom_depth.c:

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Functions

GLuint st_compare_func_to_pipe (GLenum func)
 Convert an OpenGL compare mode to a pipe tokens.
static GLuint gl_stencil_op_to_pipe (GLenum func)
 Convert GLenum stencil op tokens to pipe tokens.
static void update_depth_stencil_alpha (struct st_context *st)

Variables

struct st_tracked_state st_update_depth_stencil_alpha


Function Documentation

static GLuint gl_stencil_op_to_pipe ( GLenum  func  )  [static]

Convert GLenum stencil op tokens to pipe tokens.

Definition at line 68 of file st_atom_depth.c.

References assert, PIPE_STENCIL_OP_DECR, PIPE_STENCIL_OP_DECR_WRAP, PIPE_STENCIL_OP_INCR, PIPE_STENCIL_OP_INCR_WRAP, PIPE_STENCIL_OP_INVERT, PIPE_STENCIL_OP_KEEP, PIPE_STENCIL_OP_REPLACE, and PIPE_STENCIL_OP_ZERO.

00069 {
00070    switch (func) {
00071    case GL_KEEP:
00072       return PIPE_STENCIL_OP_KEEP;
00073    case GL_ZERO:
00074       return PIPE_STENCIL_OP_ZERO;
00075    case GL_REPLACE:
00076       return PIPE_STENCIL_OP_REPLACE;
00077    case GL_INCR:
00078       return PIPE_STENCIL_OP_INCR;
00079    case GL_DECR:
00080       return PIPE_STENCIL_OP_DECR;
00081    case GL_INCR_WRAP:
00082       return PIPE_STENCIL_OP_INCR_WRAP;
00083    case GL_DECR_WRAP:
00084       return PIPE_STENCIL_OP_DECR_WRAP;
00085    case GL_INVERT:
00086       return PIPE_STENCIL_OP_INVERT;
00087    default:
00088       assert("invalid GL token in gl_stencil_op_to_pipe()" == NULL);
00089       return 0;
00090    }
00091 }

GLuint st_compare_func_to_pipe ( GLenum  func  ) 

Convert an OpenGL compare mode to a pipe tokens.

Definition at line 47 of file st_atom_depth.c.

References assert, PIPE_FUNC_ALWAYS, PIPE_FUNC_EQUAL, PIPE_FUNC_GEQUAL, PIPE_FUNC_GREATER, PIPE_FUNC_LEQUAL, PIPE_FUNC_LESS, PIPE_FUNC_NEVER, and PIPE_FUNC_NOTEQUAL.

00048 {
00049    /* Same values, just biased */
00050    assert(PIPE_FUNC_NEVER == GL_NEVER - GL_NEVER);
00051    assert(PIPE_FUNC_LESS == GL_LESS - GL_NEVER);
00052    assert(PIPE_FUNC_EQUAL == GL_EQUAL - GL_NEVER);
00053    assert(PIPE_FUNC_LEQUAL == GL_LEQUAL - GL_NEVER);
00054    assert(PIPE_FUNC_GREATER == GL_GREATER - GL_NEVER);
00055    assert(PIPE_FUNC_NOTEQUAL == GL_NOTEQUAL - GL_NEVER);
00056    assert(PIPE_FUNC_GEQUAL == GL_GEQUAL - GL_NEVER);
00057    assert(PIPE_FUNC_ALWAYS == GL_ALWAYS - GL_NEVER);
00058    assert(func >= GL_NEVER);
00059    assert(func <= GL_ALWAYS);
00060    return func - GL_NEVER;
00061 }

static void update_depth_stencil_alpha ( struct st_context st  )  [static]

Definition at line 94 of file st_atom_depth.c.

References pipe_depth_stencil_alpha_state::alpha, st_context::cso_context, cso_set_depth_stencil_alpha(), st_context::ctx, pipe_depth_stencil_alpha_state::depth, st_context::depth_stencil, pipe_alpha_state::enabled, pipe_stencil_state::enabled, pipe_depth_state::enabled, pipe_stencil_state::fail_op, pipe_alpha_state::func, pipe_stencil_state::func, pipe_depth_state::func, gl_stencil_op_to_pipe(), pipe_depth_state::occlusion_count, pipe_alpha_state::ref, pipe_stencil_state::ref_value, st_compare_func_to_pipe(), st_context::state, pipe_depth_stencil_alpha_state::stencil, pipe_stencil_state::value_mask, pipe_stencil_state::write_mask, pipe_depth_state::writemask, pipe_stencil_state::zfail_op, and pipe_stencil_state::zpass_op.

00095 {
00096    struct pipe_depth_stencil_alpha_state *dsa = &st->state.depth_stencil;
00097 
00098    memset(dsa, 0, sizeof(*dsa));
00099 
00100    dsa->depth.enabled = st->ctx->Depth.Test;
00101    dsa->depth.writemask = st->ctx->Depth.Mask;
00102    dsa->depth.func = st_compare_func_to_pipe(st->ctx->Depth.Func);
00103 
00104    if (st->ctx->Query.CurrentOcclusionObject &&
00105        st->ctx->Query.CurrentOcclusionObject->Active)
00106       dsa->depth.occlusion_count = 1;
00107 
00108    if (st->ctx->Stencil.Enabled && st->ctx->Visual.stencilBits > 0) {
00109       dsa->stencil[0].enabled = 1;
00110       dsa->stencil[0].func = st_compare_func_to_pipe(st->ctx->Stencil.Function[0]);
00111       dsa->stencil[0].fail_op = gl_stencil_op_to_pipe(st->ctx->Stencil.FailFunc[0]);
00112       dsa->stencil[0].zfail_op = gl_stencil_op_to_pipe(st->ctx->Stencil.ZFailFunc[0]);
00113       dsa->stencil[0].zpass_op = gl_stencil_op_to_pipe(st->ctx->Stencil.ZPassFunc[0]);
00114       dsa->stencil[0].ref_value = st->ctx->Stencil.Ref[0] & 0xff;
00115       dsa->stencil[0].value_mask = st->ctx->Stencil.ValueMask[0] & 0xff;
00116       dsa->stencil[0].write_mask = st->ctx->Stencil.WriteMask[0] & 0xff;
00117 
00118       if (st->ctx->Stencil._TestTwoSide) {
00119          dsa->stencil[1].enabled = 1;
00120          dsa->stencil[1].func = st_compare_func_to_pipe(st->ctx->Stencil.Function[1]);
00121          dsa->stencil[1].fail_op = gl_stencil_op_to_pipe(st->ctx->Stencil.FailFunc[1]);
00122          dsa->stencil[1].zfail_op = gl_stencil_op_to_pipe(st->ctx->Stencil.ZFailFunc[1]);
00123          dsa->stencil[1].zpass_op = gl_stencil_op_to_pipe(st->ctx->Stencil.ZPassFunc[1]);
00124          dsa->stencil[1].ref_value = st->ctx->Stencil.Ref[1] & 0xff;
00125          dsa->stencil[1].value_mask = st->ctx->Stencil.ValueMask[1] & 0xff;
00126          dsa->stencil[1].write_mask = st->ctx->Stencil.WriteMask[1] & 0xff;
00127       }
00128       else {
00129          dsa->stencil[1] = dsa->stencil[0];
00130          dsa->stencil[1].enabled = 0;
00131       }
00132    }
00133 
00134    if (st->ctx->Color.AlphaEnabled) {
00135       dsa->alpha.enabled = 1;
00136       dsa->alpha.func = st_compare_func_to_pipe(st->ctx->Color.AlphaFunc);
00137       dsa->alpha.ref = st->ctx->Color.AlphaRef;
00138    }
00139 
00140    cso_set_depth_stencil_alpha(st->cso_context, dsa);
00141 }


Variable Documentation

struct st_tracked_state st_update_depth_stencil_alpha

Initial value:

 {
   "st_update_depth_stencil",                           
   {                                                    
      (_NEW_DEPTH|_NEW_STENCIL|_NEW_COLOR),             
      0,                                                
   },
   update_depth_stencil_alpha                           
}

Definition at line 144 of file st_atom_depth.c.


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