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mesa: support GL_EXT_stencil_two_side in gallium/mesa state tracker

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Since Ian's patch of a few weeks ago, we can enable all three variations
of two-sided stencil.  Update the state tracker to handle the extra back-
face state and turn on the EXT.

Note: there's a new Glean test for two-sided stencil now...
This commit is contained in:
Brian Paul
2009-02-19 14:37:43 -07:00
parent a304cc6cca
commit 2b32c7dff5
2 changed files with 27 additions and 24 deletions
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50
src/mesa/state_tracker/st_atom_depth.c
View File

@@ -94,36 +94,38 @@ static void
update_depth_stencil_alpha(struct st_context *st)
{
struct pipe_depth_stencil_alpha_state *dsa = &st->state.depth_stencil;
GLcontext *ctx = st->ctx;
memset(dsa, 0, sizeof(*dsa));
dsa->depth.enabled = st->ctx->Depth.Test;
dsa->depth.writemask = st->ctx->Depth.Mask;
dsa->depth.func = st_compare_func_to_pipe(st->ctx->Depth.Func);
dsa->depth.enabled = ctx->Depth.Test;
dsa->depth.writemask = ctx->Depth.Mask;
dsa->depth.func = st_compare_func_to_pipe(ctx->Depth.Func);
if (st->ctx->Query.CurrentOcclusionObject &&
st->ctx->Query.CurrentOcclusionObject->Active)
if (ctx->Query.CurrentOcclusionObject &&
ctx->Query.CurrentOcclusionObject->Active)
dsa->depth.occlusion_count = 1;
if (st->ctx->Stencil.Enabled && st->ctx->Visual.stencilBits > 0) {
if (ctx->Stencil.Enabled && ctx->Visual.stencilBits > 0) {
dsa->stencil[0].enabled = 1;
dsa->stencil[0].func = st_compare_func_to_pipe(st->ctx->Stencil.Function[0]);
dsa->stencil[0].fail_op = gl_stencil_op_to_pipe(st->ctx->Stencil.FailFunc[0]);
dsa->stencil[0].zfail_op = gl_stencil_op_to_pipe(st->ctx->Stencil.ZFailFunc[0]);
dsa->stencil[0].zpass_op = gl_stencil_op_to_pipe(st->ctx->Stencil.ZPassFunc[0]);
dsa->stencil[0].ref_value = st->ctx->Stencil.Ref[0] & 0xff;
dsa->stencil[0].valuemask = st->ctx->Stencil.ValueMask[0] & 0xff;
dsa->stencil[0].writemask = st->ctx->Stencil.WriteMask[0] & 0xff;
dsa->stencil[0].func = st_compare_func_to_pipe(ctx->Stencil.Function[0]);
dsa->stencil[0].fail_op = gl_stencil_op_to_pipe(ctx->Stencil.FailFunc[0]);
dsa->stencil[0].zfail_op = gl_stencil_op_to_pipe(ctx->Stencil.ZFailFunc[0]);
dsa->stencil[0].zpass_op = gl_stencil_op_to_pipe(ctx->Stencil.ZPassFunc[0]);
dsa->stencil[0].ref_value = ctx->Stencil.Ref[0] & 0xff;
dsa->stencil[0].valuemask = ctx->Stencil.ValueMask[0] & 0xff;
dsa->stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff;
if (st->ctx->Stencil._TestTwoSide) {
if (ctx->Stencil._TestTwoSide) {
const GLuint back = ctx->Stencil._BackFace;
dsa->stencil[1].enabled = 1;
dsa->stencil[1].func = st_compare_func_to_pipe(st->ctx->Stencil.Function[1]);
dsa->stencil[1].fail_op = gl_stencil_op_to_pipe(st->ctx->Stencil.FailFunc[1]);
dsa->stencil[1].zfail_op = gl_stencil_op_to_pipe(st->ctx->Stencil.ZFailFunc[1]);
dsa->stencil[1].zpass_op = gl_stencil_op_to_pipe(st->ctx->Stencil.ZPassFunc[1]);
dsa->stencil[1].ref_value = st->ctx->Stencil.Ref[1] & 0xff;
dsa->stencil[1].valuemask = st->ctx->Stencil.ValueMask[1] & 0xff;
dsa->stencil[1].writemask = st->ctx->Stencil.WriteMask[1] & 0xff;
dsa->stencil[1].func = st_compare_func_to_pipe(ctx->Stencil.Function[back]);
dsa->stencil[1].fail_op = gl_stencil_op_to_pipe(ctx->Stencil.FailFunc[back]);
dsa->stencil[1].zfail_op = gl_stencil_op_to_pipe(ctx->Stencil.ZFailFunc[back]);
dsa->stencil[1].zpass_op = gl_stencil_op_to_pipe(ctx->Stencil.ZPassFunc[back]);
dsa->stencil[1].ref_value = ctx->Stencil.Ref[back] & 0xff;
dsa->stencil[1].valuemask = ctx->Stencil.ValueMask[back] & 0xff;
dsa->stencil[1].writemask = ctx->Stencil.WriteMask[back] & 0xff;
}
else {
dsa->stencil[1] = dsa->stencil[0];
@@ -131,10 +133,10 @@ update_depth_stencil_alpha(struct st_context *st)
}
}
if (st->ctx->Color.AlphaEnabled) {
if (ctx->Color.AlphaEnabled) {
dsa->alpha.enabled = 1;
dsa->alpha.func = st_compare_func_to_pipe(st->ctx->Color.AlphaFunc);
dsa->alpha.ref_value = st->ctx->Color.AlphaRef;
dsa->alpha.func = st_compare_func_to_pipe(ctx->Color.AlphaFunc);
dsa->alpha.ref_value = ctx->Color.AlphaRef;
}
cso_set_depth_stencil_alpha(st->cso_context, dsa);

1
src/mesa/state_tracker/st_extensions.c
View File

@@ -208,6 +208,7 @@ void st_init_extensions(struct st_context *st)
if (screen->get_param(screen, PIPE_CAP_TWO_SIDED_STENCIL)) {
ctx->Extensions.ATI_separate_stencil = GL_TRUE;
ctx->Extensions.EXT_stencil_two_side = GL_TRUE;
}
if (screen->get_param(screen, PIPE_CAP_ANISOTROPIC_FILTER)) {