*
**************************************************************************/
+/**
+ * The rast code is concerned with rasterization of command bins.
+ * Each screen tile has a bin associated with it. To render the
+ * scene we iterate over the tile bins and execute the commands
+ * in each bin.
+ * We'll do that with multiple threads...
+ */
+
+
#ifndef LP_RAST_H
#define LP_RAST_H
#include "pipe/p_compiler.h"
#include "lp_jit.h"
-/* Initially create and program a single rasterizer directly. Later
- * will want multiple of these, one or two per core. At that stage
- * will probably pass command buffers into the rasterizers rather than
- * individual function calls like this.
- */
+
struct lp_rasterizer;
-struct pipe_screen;
+struct lp_scene;
+struct lp_fence;
+struct cmd_bin;
+/** For sub-pixel positioning */
#define FIXED_ORDER 4
#define FIXED_ONE (1<<FIXED_ORDER)
+struct lp_rasterizer_task;
+
+
+/**
+ * Rasterization state.
+ * Objects of this type are put into the shared data bin and pointed
+ * to by commands in the per-tile bins.
+ */
struct lp_rast_state {
- /* State for the shader:
+ /* State for the shader. This also contains state which feeds into
+ * the fragment shader, such as blend color and alpha ref value.
*/
struct lp_jit_context jit_context;
/* The shader itself. Probably we also need to pass a pointer to
- * the tile color/z/stencil data somehow:
- */
- lp_jit_frag_func jit_function;
-
+ * the tile color/z/stencil data somehow
+ */
+ struct lp_fragment_shader_variant *variant;
};
* These pointers point into the bin data buffer.
*/
struct lp_rast_shader_inputs {
+ float facing; /** Positive for front-facing, negative for back-facing */
+ unsigned disable:1; /** Partially binned, disable this command */
+ unsigned opaque:1; /** Is opaque */
+
float (*a0)[4];
float (*dadx)[4];
float (*dady)[4];
+
+ const struct lp_rast_state *state;
};
+/* Note: the order of these values is important as they are loaded by
+ * sse code in rasterization:
+ */
+struct lp_rast_plane {
+ /* edge function values at minx,miny ?? */
+ int c;
+
+ int dcdx;
+ int dcdy;
+
+ /* one-pixel sized trivial reject offsets for each plane */
+ int eo;
+
+ /* one-pixel sized trivial accept offsets for each plane */
+ int ei;
+};
/**
* Rasterization information for a triangle known to be in this bin,
* plus inputs to run the shader:
* These fields are tile- and bin-independent.
- * Objects of this type are put into the setup_context::data buffer.
+ * Objects of this type are put into the lp_setup_context::data buffer.
*/
struct lp_rast_triangle {
- /* bounding box of tri (in pixels) */
- int minx;
- int maxx;
- int miny;
- int maxy;
-
- /* one-pixel sized trivial accept offsets for each plane */
- int ei1;
- int ei2;
- int ei3;
-
- /* one-pixel sized trivial reject offsets for each plane */
- int eo1;
- int eo2;
- int eo3;
-
- /* y deltas for vertex pairs (in fixed pt) */
- int dy12;
- int dy23;
- int dy31;
-
- /* x deltas for vertex pairs (in fixed pt) */
- int dx12;
- int dx23;
- int dx31;
-
- /* edge function values at minx,miny ?? */
- int c1;
- int c2;
- int c3;
-
- int step[3][16];
-
/* inputs for the shader */
struct lp_rast_shader_inputs inputs;
+
+#ifdef DEBUG
+ float v[3][2];
+#endif
+
+ struct lp_rast_plane plane[8]; /* NOTE: may allocate fewer planes */
};
-struct lp_rasterizer *lp_rast_create( struct pipe_screen *screen );
+struct lp_rasterizer *
+lp_rast_create( unsigned num_threads );
-boolean lp_rast_begin( struct lp_rasterizer *rast,
- struct pipe_surface *cbuf,
- struct pipe_surface *zsbuf,
- boolean write_color,
- boolean write_zstencil,
- unsigned width,
- unsigned height );
+void
+lp_rast_destroy( struct lp_rasterizer * );
-void lp_rast_end( struct lp_rasterizer * );
+unsigned
+lp_rast_get_num_threads( struct lp_rasterizer * );
-/* Begining of each tile:
- */
-void lp_rast_start_tile( struct lp_rasterizer *,
- unsigned x,
- unsigned y );
+void
+lp_rast_queue_scene( struct lp_rasterizer *rast,
+ struct lp_scene *scene );
+void
+lp_rast_finish( struct lp_rasterizer *rast );
union lp_rast_cmd_arg {
const struct lp_rast_shader_inputs *shade_tile;
- const struct lp_rast_triangle *triangle;
+ struct {
+ const struct lp_rast_triangle *tri;
+ unsigned plane_mask;
+ } triangle;
const struct lp_rast_state *set_state;
uint8_t clear_color[4];
- unsigned clear_zstencil;
+ struct {
+ uint32_t value;
+ uint32_t mask;
+ } clear_zstencil;
+ struct lp_fence *fence;
+ struct llvmpipe_query *query_obj;
};
+
/* Cast wrappers. Hopefully these compile to noops!
*/
-static INLINE const union lp_rast_cmd_arg
+static INLINE union lp_rast_cmd_arg
lp_rast_arg_inputs( const struct lp_rast_shader_inputs *shade_tile )
{
union lp_rast_cmd_arg arg;
return arg;
}
-static INLINE const union lp_rast_cmd_arg
-lp_rast_arg_triangle( const struct lp_rast_triangle *triangle )
+static INLINE union lp_rast_cmd_arg
+lp_rast_arg_triangle( const struct lp_rast_triangle *triangle,
+ unsigned plane_mask)
{
union lp_rast_cmd_arg arg;
- arg.triangle = triangle;
+ arg.triangle.tri = triangle;
+ arg.triangle.plane_mask = plane_mask;
return arg;
}
-static INLINE const union lp_rast_cmd_arg
+static INLINE union lp_rast_cmd_arg
lp_rast_arg_state( const struct lp_rast_state *state )
{
union lp_rast_cmd_arg arg;
return arg;
}
-static INLINE const union lp_rast_cmd_arg
-lp_rast_arg_null( void )
+static INLINE union lp_rast_cmd_arg
+lp_rast_arg_fence( struct lp_fence *fence )
{
union lp_rast_cmd_arg arg;
- arg.set_state = NULL;
+ arg.fence = fence;
return arg;
}
+static INLINE union lp_rast_cmd_arg
+lp_rast_arg_clearzs( unsigned value, unsigned mask )
+{
+ union lp_rast_cmd_arg arg;
+ arg.clear_zstencil.value = value;
+ arg.clear_zstencil.mask = mask;
+ return arg;
+}
+static INLINE union lp_rast_cmd_arg
+lp_rast_arg_query( struct llvmpipe_query *pq )
+{
+ union lp_rast_cmd_arg arg;
+ arg.query_obj = pq;
+ return arg;
+}
-/* Binnable Commands:
- */
-void lp_rast_clear_color( struct lp_rasterizer *,
- const union lp_rast_cmd_arg );
-
-void lp_rast_clear_zstencil( struct lp_rasterizer *,
- const union lp_rast_cmd_arg );
-
-void lp_rast_load_color( struct lp_rasterizer *,
- const union lp_rast_cmd_arg );
-
-void lp_rast_load_zstencil( struct lp_rasterizer *,
- const union lp_rast_cmd_arg );
-
-void lp_rast_set_state( struct lp_rasterizer *,
- const union lp_rast_cmd_arg );
-
-void lp_rast_triangle( struct lp_rasterizer *,
- const union lp_rast_cmd_arg );
-
-void lp_rast_shade_tile( struct lp_rasterizer *,
- const union lp_rast_cmd_arg );
-
-
-/* End of tile:
- */
+static INLINE union lp_rast_cmd_arg
+lp_rast_arg_null( void )
+{
+ union lp_rast_cmd_arg arg;
+ arg.set_state = NULL;
+ return arg;
+}
-void lp_rast_end_tile( struct lp_rasterizer *rast );
-/* Shutdown:
+/**
+ * Binnable Commands.
+ * These get put into bins by the setup code and are called when
+ * the bins are executed.
*/
-void lp_rast_destroy( struct lp_rasterizer * );
+#define LP_RAST_OP_CLEAR_COLOR 0x0
+#define LP_RAST_OP_CLEAR_ZSTENCIL 0x1
+#define LP_RAST_OP_TRIANGLE_1 0x2
+#define LP_RAST_OP_TRIANGLE_2 0x3
+#define LP_RAST_OP_TRIANGLE_3 0x4
+#define LP_RAST_OP_TRIANGLE_4 0x5
+#define LP_RAST_OP_TRIANGLE_5 0x6
+#define LP_RAST_OP_TRIANGLE_6 0x7
+#define LP_RAST_OP_TRIANGLE_7 0x8
+#define LP_RAST_OP_TRIANGLE_8 0x9
+#define LP_RAST_OP_TRIANGLE_3_4 0xa
+#define LP_RAST_OP_TRIANGLE_3_16 0xb
+#define LP_RAST_OP_TRIANGLE_4_16 0xc
+#define LP_RAST_OP_SHADE_TILE 0xd
+#define LP_RAST_OP_SHADE_TILE_OPAQUE 0xe
+#define LP_RAST_OP_BEGIN_QUERY 0xf
+#define LP_RAST_OP_END_QUERY 0x10
+
+#define LP_RAST_OP_MAX 0x11
+#define LP_RAST_OP_MASK 0xff
+
+void
+lp_debug_bins( struct lp_scene *scene );
+void
+lp_debug_draw_bins_by_cmd_length( struct lp_scene *scene );
+void
+lp_debug_draw_bins_by_coverage( struct lp_scene *scene );
#endif
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