#include "draw/draw_private.h"
#include "draw/draw_pipe.h"
+#include "util/u_debug.h"
-
-
-
-
+/**
+ * Build primitive to render a point with vertex at v0.
+ */
static void do_point( struct draw_context *draw,
const char *v0 )
{
}
+/**
+ * Build primitive to render a line with vertices at v0, v1.
+ * \param flags bitmask of DRAW_PIPE_EDGE_x, DRAW_PIPE_RESET_STIPPLE
+ */
static void do_line( struct draw_context *draw,
ushort flags,
const char *v0,
}
+/**
+ * Build primitive to render a triangle with vertices at v0, v1, v2.
+ * \param flags bitmask of DRAW_PIPE_EDGE_x, DRAW_PIPE_RESET_STIPPLE
+ */
static void do_triangle( struct draw_context *draw,
ushort flags,
char *v0,
}
+/*
+ * Set up macros for draw_pt_decompose.h template code.
+ * This code uses vertex indexes / elements.
+ */
+#define QUAD(i0,i1,i2,i3) \
+ do_triangle( draw, \
+ ( DRAW_PIPE_RESET_STIPPLE | \
+ DRAW_PIPE_EDGE_FLAG_0 | \
+ DRAW_PIPE_EDGE_FLAG_2 ), \
+ verts + stride * elts[i0], \
+ verts + stride * elts[i1], \
+ verts + stride * elts[i3]); \
+ do_triangle( draw, \
+ ( DRAW_PIPE_EDGE_FLAG_0 | \
+ DRAW_PIPE_EDGE_FLAG_1 ), \
+ verts + stride * elts[i1], \
+ verts + stride * elts[i2], \
+ verts + stride * elts[i3])
+
+#define TRIANGLE(flags,i0,i1,i2) \
+ do_triangle( draw, \
+ elts[i0], /* flags */ \
+ verts + stride * (elts[i0] & ~DRAW_PIPE_FLAG_MASK), \
+ verts + stride * (elts[i1] & ~DRAW_PIPE_FLAG_MASK), \
+ verts + stride * (elts[i2] & ~DRAW_PIPE_FLAG_MASK) );
+
+#define LINE(flags,i0,i1) \
+ do_line( draw, \
+ elts[i0], \
+ verts + stride * (elts[i0] & ~DRAW_PIPE_FLAG_MASK), \
+ verts + stride * (elts[i1] & ~DRAW_PIPE_FLAG_MASK) );
+
+#define POINT(i0) \
+ do_point( draw, \
+ verts + stride * elts[i0] )
+
+#define FUNC pipe_run
+#define ARGS \
+ struct draw_context *draw, \
+ unsigned prim, \
+ struct vertex_header *vertices, \
+ unsigned stride, \
+ const ushort *elts
+
+#define LOCAL_VARS \
+ char *verts = (char *)vertices; \
+ boolean flatfirst = (draw->rasterizer->flatshade && \
+ draw->rasterizer->flatshade_first); \
+ unsigned i; \
+ ushort flags
+
+#define FLUSH
+#include "draw_pt_decompose.h"
+#undef ARGS
+#undef LOCAL_VARS
-/* Code to run the pipeline on a fairly arbitary collection of vertices.
+
+
+/**
+ * Code to run the pipeline on a fairly arbitrary collection of vertices.
+ * For drawing indexed primitives.
*
* Vertex headers must be pre-initialized with the
* UNDEFINED_VERTEX_ID, this code will cause that id to become
unsigned count )
{
char *verts = (char *)vertices;
- unsigned i;
draw->pipeline.verts = verts;
draw->pipeline.vertex_stride = stride;
draw->pipeline.vertex_count = vertex_count;
- switch (prim) {
- case PIPE_PRIM_POINTS:
- for (i = 0; i < count; i++)
- do_point( draw,
- verts + stride * elts[i] );
- break;
- case PIPE_PRIM_LINES:
- for (i = 0; i+1 < count; i += 2)
- do_line( draw,
- elts[i+0], /* flags */
- verts + stride * (elts[i+0] & ~DRAW_PIPE_FLAG_MASK),
- verts + stride * elts[i+1]);
- break;
- case PIPE_PRIM_TRIANGLES:
- for (i = 0; i+2 < count; i += 3)
- do_triangle( draw,
- elts[i+0], /* flags */
- verts + stride * (elts[i+0] & ~DRAW_PIPE_FLAG_MASK),
- verts + stride * elts[i+1],
- verts + stride * elts[i+2]);
- break;
- }
+ pipe_run(draw, prim, vertices, stride, elts, count);
draw->pipeline.verts = NULL;
draw->pipeline.vertex_count = 0;
}
+
+
+/*
+ * Set up macros for draw_pt_decompose.h template code.
+ * This code is for non-indexed rendering (no elts).
+ */
#define QUAD(i0,i1,i2,i3) \
do_triangle( draw, \
( DRAW_PIPE_RESET_STIPPLE | \
DRAW_PIPE_EDGE_FLAG_0 | \
DRAW_PIPE_EDGE_FLAG_2 ), \
- verts + stride * ((i0) & ~DRAW_PIPE_FLAG_MASK), \
- verts + stride * (i1), \
+ verts + stride * ((i0) & ~DRAW_PIPE_FLAG_MASK), \
+ verts + stride * (i1), \
verts + stride * (i3)); \
- do_triangle( draw, \
- ( DRAW_PIPE_EDGE_FLAG_0 | \
- DRAW_PIPE_EDGE_FLAG_1 ), \
- verts + stride * ((i1) & ~DRAW_PIPE_FLAG_MASK), \
- verts + stride * (i2), \
- verts + stride * (i3))
+ do_triangle( draw, \
+ ( DRAW_PIPE_EDGE_FLAG_0 | \
+ DRAW_PIPE_EDGE_FLAG_1 ), \
+ verts + stride * ((i1) & ~DRAW_PIPE_FLAG_MASK), \
+ verts + stride * (i2), \
+ verts + stride * (i3))
#define TRIANGLE(flags,i0,i1,i2) \
do_triangle( draw, \
flags, /* flags */ \
- verts + stride * ((i0) & ~DRAW_PIPE_FLAG_MASK), \
- verts + stride * (i1), \
- verts + stride * (i2))
+ verts + stride * ((i0) & ~DRAW_PIPE_FLAG_MASK), \
+ verts + stride * (i1), \
+ verts + stride * (i2))
#define LINE(flags,i0,i1) \
do_line( draw, \
#include "draw_pt_decompose.h"
+
+/*
+ * For drawing non-indexed primitives.
+ */
void draw_pipeline_run_linear( struct draw_context *draw,
unsigned prim,
struct vertex_header *vertices,
projects / mesa.git / blobdiff