r300g: move two-sided stencilref fallback to its own file

1 files changed, 1 insertions, 130 deletions

diff --git a/src/gallium/drivers/r300/r300_render.c b/src/gallium/drivers/r300/r300_render.c
index e83dbab092..95a20c1fd4 100644
--- a/src/gallium/drivers/r300/r300_render.c
+++ b/src/gallium/drivers/r300/r300_render.c
@@ -1013,135 +1013,6 @@ struct draw_stage* r300_draw_stage(struct r300_context* r300)
     return stage;
 }
 
-/****************************************************************************
- * Two-sided stencil reference value fallback. It's designed to be as much
- * separate from rest of the driver as possible.
- ***************************************************************************/
-
-struct r300_stencilref_context {
-    void (*draw_arrays)(struct pipe_context *pipe,
-                        unsigned mode, unsigned start, unsigned count);
-
-    void (*draw_range_elements)(
-        struct pipe_context *pipe, struct pipe_resource *indexBuffer,
-        unsigned indexSize, int indexBias, unsigned minIndex, unsigned maxIndex,
-        unsigned mode, unsigned start, unsigned count);
-
-    uint32_t rs_cull_mode;
-    uint32_t zb_stencilrefmask;
-    ubyte ref_value_front;
-};
-
-static boolean r300_stencilref_needed(struct r300_context *r300)
-{
-    struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state;
-
-    return dsa->two_sided_stencil_ref ||
-           (dsa->two_sided &&
-            r300->stencil_ref.ref_value[0] != r300->stencil_ref.ref_value[1]);
-}
-
-/* Set drawing for front faces. */
-static void r300_stencilref_begin(struct r300_context *r300)
-{
-    struct r300_stencilref_context *sr = r300->stencilref_fallback;
-    struct r300_rs_state *rs = (struct r300_rs_state*)r300->rs_state.state;
-    struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state;
-
-    /* Save state. */
-    sr->rs_cull_mode = rs->cull_mode;
-    sr->zb_stencilrefmask = dsa->stencil_ref_mask;
-    sr->ref_value_front = r300->stencil_ref.ref_value[0];
-
-    /* We *cull* pixels, therefore no need to mask out the bits. */
-    rs->cull_mode |= R300_CULL_BACK;
-
-    r300->rs_state.dirty = TRUE;
-}
-
-/* Set drawing for back faces. */
-static void r300_stencilref_switch_side(struct r300_context *r300)
-{
-    struct r300_stencilref_context *sr = r300->stencilref_fallback;
-    struct r300_rs_state *rs = (struct r300_rs_state*)r300->rs_state.state;
-    struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state;
-
-    rs->cull_mode = sr->rs_cull_mode | R300_CULL_FRONT;
-    dsa->stencil_ref_mask = dsa->stencil_ref_bf;
-    r300->stencil_ref.ref_value[0] = r300->stencil_ref.ref_value[1];
-
-    r300->rs_state.dirty = TRUE;
-    r300->dsa_state.dirty = TRUE;
-}
-
-/* Restore the original state. */
-static void r300_stencilref_end(struct r300_context *r300)
-{
-    struct r300_stencilref_context *sr = r300->stencilref_fallback;
-    struct r300_rs_state *rs = (struct r300_rs_state*)r300->rs_state.state;
-    struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state;
-
-    /* Restore state. */
-    rs->cull_mode = sr->rs_cull_mode;
-    dsa->stencil_ref_mask = sr->zb_stencilrefmask;
-    r300->stencil_ref.ref_value[0] = sr->ref_value_front;
-
-    r300->rs_state.dirty = TRUE;
-    r300->dsa_state.dirty = TRUE;
-}
-
-static void r300_stencilref_draw_arrays(struct pipe_context *pipe, unsigned mode,
-                                        unsigned start, unsigned count)
-{
-    struct r300_context *r300 = r300_context(pipe);
-    struct r300_stencilref_context *sr = r300->stencilref_fallback;
-
-    if (!r300_stencilref_needed(r300)) {
-        sr->draw_arrays(pipe, mode, start, count);
-    } else {
-        r300_stencilref_begin(r300);
-        sr->draw_arrays(pipe, mode, start, count);
-        r300_stencilref_switch_side(r300);
-        sr->draw_arrays(pipe, mode, start, count);
-        r300_stencilref_end(r300);
-    }
-}
-
-static void r300_stencilref_draw_range_elements(
-    struct pipe_context *pipe, struct pipe_resource *indexBuffer,
-    unsigned indexSize, int indexBias, unsigned minIndex, unsigned maxIndex,
-    unsigned mode, unsigned start, unsigned count)
-{
-    struct r300_context *r300 = r300_context(pipe);
-    struct r300_stencilref_context *sr = r300->stencilref_fallback;
-
-    if (!r300_stencilref_needed(r300)) {
-        sr->draw_range_elements(pipe, indexBuffer, indexSize, indexBias,
-                                minIndex, maxIndex, mode, start, count);
-    } else {
-        r300_stencilref_begin(r300);
-        sr->draw_range_elements(pipe, indexBuffer, indexSize, indexBias,
-                                minIndex, maxIndex, mode, start, count);
-        r300_stencilref_switch_side(r300);
-        sr->draw_range_elements(pipe, indexBuffer, indexSize, indexBias,
-                                minIndex, maxIndex, mode, start, count);
-        r300_stencilref_end(r300);
-    }
-}
-
-static void r300_plug_in_stencil_ref_fallback(struct r300_context *r300)
-{
-    r300->stencilref_fallback = CALLOC_STRUCT(r300_stencilref_context);
-
-    /* Save original draw functions. */
-    r300->stencilref_fallback->draw_arrays = r300->context.draw_arrays;
-    r300->stencilref_fallback->draw_range_elements = r300->context.draw_range_elements;
-
-    /* Override the draw functions. */
-    r300->context.draw_arrays = r300_stencilref_draw_arrays;
-    r300->context.draw_range_elements = r300_stencilref_draw_range_elements;
-}
-
 void r300_init_render_functions(struct r300_context *r300)
 {
     /* Set generic functions. */
@@ -1156,7 +1027,7 @@ void r300_init_render_functions(struct r300_context *r300)
         r300->context.draw_range_elements = r300_swtcl_draw_range_elements;
     }
 
-    /* Plug in two-sided stencil reference value fallback if needed. */
+    /* Plug in the two-sided stencil reference value fallback if needed. */
     if (!r300->screen->caps.is_r500)
         r300_plug_in_stencil_ref_fallback(r300);
 }