/**************************************************************************
*
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2007 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "lp_setup.h"
#include "draw/draw_context.h"
+struct lp_rast_state {
+ struct pipe_rasterizer_state lp_state;
+ struct pipe_rasterizer_state draw_state;
+};
+
+/* State which might be handled in either the draw module or locally.
+ * This function is used to turn that state off in one of the two
+ * places.
+ */
+static void
+clear_flags(struct pipe_rasterizer_state *rast)
+{
+ rast->light_twoside = 0;
+ rast->offset_tri = 0;
+ rast->offset_line = 0;
+ rast->offset_point = 0;
+ rast->offset_units = 0.0f;
+ rast->offset_scale = 0.0f;
+}
-void *
+
+static void *
llvmpipe_create_rasterizer_state(struct pipe_context *pipe,
const struct pipe_rasterizer_state *rast)
{
- return mem_dup(rast, sizeof(*rast));
+ boolean need_pipeline;
+
+ /* Partition rasterizer state into what we want the draw module to
+ * handle, and what we'll look after ourselves.
+ */
+ struct lp_rast_state *state = MALLOC_STRUCT(lp_rast_state);
+ if (!state)
+ return NULL;
+
+ memcpy(&state->draw_state, rast, sizeof *rast);
+ memcpy(&state->lp_state, rast, sizeof *rast);
+
+ /* We rely on draw module to do unfilled polyons, AA lines and
+ * points and stipple.
+ *
+ * Over time, reduce this list of conditions, and expand the list
+ * of flags which get cleared in clear_flags().
+ */
+ need_pipeline = (rast->fill_front != PIPE_POLYGON_MODE_FILL ||
+ rast->fill_back != PIPE_POLYGON_MODE_FILL ||
+ rast->point_smooth ||
+ rast->line_smooth ||
+ rast->line_stipple_enable ||
+ rast->poly_stipple_enable);
+
+ /* If not using the pipeline, clear out the flags which we can
+ * handle ourselves. If we *are* using the pipeline, do everything
+ * on the pipeline and clear those flags on our internal copy of
+ * the state.
+ */
+ if (need_pipeline)
+ clear_flags(&state->lp_state);
+ else
+ clear_flags(&state->draw_state);
+
+ return state;
}
-void llvmpipe_bind_rasterizer_state(struct pipe_context *pipe,
- void *rasterizer)
-{
- struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
- if (llvmpipe->rasterizer == rasterizer)
- return;
- /* pass-through to draw module */
- draw_set_rasterizer_state(llvmpipe->draw, rasterizer);
+static void
+llvmpipe_bind_rasterizer_state(struct pipe_context *pipe, void *handle)
+{
+ struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
+ const struct lp_rast_state *state =
+ (const struct lp_rast_state *) handle;
- llvmpipe->rasterizer = rasterizer;
+ if (state) {
+ llvmpipe->rasterizer = &state->lp_state;
+ draw_set_rasterizer_state(llvmpipe->draw, &state->draw_state, handle);
- /* Note: we can immediately set the triangle state here and
- * not worry about binning because we handle culling during
- * triangle setup, not when rasterizing the bins.
- */
- if (llvmpipe->rasterizer) {
+ /* XXX: just pass lp_state directly to setup.
+ */
lp_setup_set_triangle_state( llvmpipe->setup,
- llvmpipe->rasterizer->cull_mode,
- llvmpipe->rasterizer->front_winding == PIPE_WINDING_CCW,
- llvmpipe->rasterizer->scissor,
- llvmpipe->rasterizer->gl_rasterization_rules);
+ state->lp_state.cull_face,
+ state->lp_state.front_ccw,
+ state->lp_state.scissor,
+ state->lp_state.half_pixel_center,
+ state->lp_state.bottom_edge_rule);
+ lp_setup_set_flatshade_first( llvmpipe->setup,
+ state->lp_state.flatshade_first);
+ lp_setup_set_line_state( llvmpipe->setup,
+ state->lp_state.line_width);
+ lp_setup_set_point_state( llvmpipe->setup,
+ state->lp_state.point_size,
+ state->lp_state.point_size_per_vertex,
+ state->lp_state.sprite_coord_enable,
+ state->lp_state.sprite_coord_mode);
+ }
+ else {
+ llvmpipe->rasterizer = NULL;
+ draw_set_rasterizer_state(llvmpipe->draw, NULL, handle);
}
llvmpipe->dirty |= LP_NEW_RASTERIZER;
}
-void llvmpipe_delete_rasterizer_state(struct pipe_context *pipe,
- void *rasterizer)
+
+static void
+llvmpipe_delete_rasterizer_state(struct pipe_context *pipe,
+ void *rasterizer)
{
FREE( rasterizer );
}
+
+void
+llvmpipe_init_rasterizer_funcs(struct llvmpipe_context *llvmpipe)
+{
+ llvmpipe->pipe.create_rasterizer_state = llvmpipe_create_rasterizer_state;
+ llvmpipe->pipe.bind_rasterizer_state = llvmpipe_bind_rasterizer_state;
+ llvmpipe->pipe.delete_rasterizer_state = llvmpipe_delete_rasterizer_state;
+}
projects / mesa.git / blobdiff