1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 * Keith Whitwell <keith@tungstengraphics.com>
33 #include "draw/draw_context.h"
34 #include "draw/draw_private.h"
35 #include "draw/draw_pt.h"
36 #include "tgsi/tgsi_dump.h"
37 #include "util/u_math.h"
38 #include "util/u_prim.h"
40 static unsigned trim( unsigned count
, unsigned first
, unsigned incr
)
44 return count
- (count
- first
) % incr
;
49 /* Overall we split things into:
50 * - frontend -- prepare fetch_elts, draw_elts - eg vcache
51 * - middle -- fetch, shade, cliptest, viewport
52 * - pipeline -- the prim pipeline: clipping, wide lines, etc
53 * - backend -- the vbuf_render provided by the driver.
56 draw_pt_arrays(struct draw_context
*draw
,
61 struct draw_pt_front_end
*frontend
= NULL
;
62 struct draw_pt_middle_end
*middle
= NULL
;
65 /* Sanitize primitive length:
69 draw_pt_split_prim(prim
, &first
, &incr
);
70 count
= trim(count
, first
, incr
);
75 if (!draw
->force_passthrough
) {
80 if (draw_need_pipeline(draw
,
86 if (!draw
->bypass_clipping
&& !draw
->pt
.test_fse
) {
90 if (!draw
->rasterizer
->bypass_vs_clip_and_viewport
) {
96 middle
= draw
->pt
.middle
.fetch_emit
;
97 else if (opt
== PT_SHADE
&& !draw
->pt
.no_fse
)
98 middle
= draw
->pt
.middle
.fetch_shade_emit
;
100 middle
= draw
->pt
.middle
.general
;
103 /* Pick the right frontend
105 if (draw
->pt
.user
.elts
|| (opt
& PT_PIPELINE
)) {
106 frontend
= draw
->pt
.front
.vcache
;
108 frontend
= draw
->pt
.front
.varray
;
111 frontend
->prepare( frontend
, prim
, middle
, opt
);
113 frontend
->run(frontend
,
114 draw_pt_elt_func(draw
),
115 draw_pt_elt_ptr(draw
, start
),
118 frontend
->finish( frontend
);
124 boolean
draw_pt_init( struct draw_context
*draw
)
126 draw
->pt
.test_fse
= debug_get_bool_option("DRAW_FSE", FALSE
);
127 draw
->pt
.no_fse
= debug_get_bool_option("DRAW_NO_FSE", FALSE
);
129 draw
->pt
.front
.vcache
= draw_pt_vcache( draw
);
130 if (!draw
->pt
.front
.vcache
)
133 draw
->pt
.front
.varray
= draw_pt_varray(draw
);
134 if (!draw
->pt
.front
.varray
)
137 draw
->pt
.middle
.fetch_emit
= draw_pt_fetch_emit( draw
);
138 if (!draw
->pt
.middle
.fetch_emit
)
141 draw
->pt
.middle
.fetch_shade_emit
= draw_pt_middle_fse( draw
);
142 if (!draw
->pt
.middle
.fetch_shade_emit
)
145 draw
->pt
.middle
.general
= draw_pt_fetch_pipeline_or_emit( draw
);
146 if (!draw
->pt
.middle
.general
)
153 void draw_pt_destroy( struct draw_context
*draw
)
155 if (draw
->pt
.middle
.general
) {
156 draw
->pt
.middle
.general
->destroy( draw
->pt
.middle
.general
);
157 draw
->pt
.middle
.general
= NULL
;
160 if (draw
->pt
.middle
.fetch_emit
) {
161 draw
->pt
.middle
.fetch_emit
->destroy( draw
->pt
.middle
.fetch_emit
);
162 draw
->pt
.middle
.fetch_emit
= NULL
;
165 if (draw
->pt
.middle
.fetch_shade_emit
) {
166 draw
->pt
.middle
.fetch_shade_emit
->destroy( draw
->pt
.middle
.fetch_shade_emit
);
167 draw
->pt
.middle
.fetch_shade_emit
= NULL
;
170 if (draw
->pt
.front
.vcache
) {
171 draw
->pt
.front
.vcache
->destroy( draw
->pt
.front
.vcache
);
172 draw
->pt
.front
.vcache
= NULL
;
175 if (draw
->pt
.front
.varray
) {
176 draw
->pt
.front
.varray
->destroy( draw
->pt
.front
.varray
);
177 draw
->pt
.front
.varray
= NULL
;
183 * Debug- print the first 'count' vertices.
186 draw_print_arrays(struct draw_context
*draw
, uint prim
, int start
, uint count
)
190 debug_printf("Draw arrays(prim = %u, start = %u, count = %u)\n",
193 for (i
= 0; i
< count
; i
++) {
197 if (draw
->pt
.user
.elts
) {
199 switch (draw
->pt
.user
.eltSize
) {
202 const ubyte
*elem
= (const ubyte
*) draw
->pt
.user
.elts
;
203 ii
= elem
[start
+ i
];
208 const ushort
*elem
= (const ushort
*) draw
->pt
.user
.elts
;
209 ii
= elem
[start
+ i
];
214 const uint
*elem
= (const uint
*) draw
->pt
.user
.elts
;
215 ii
= elem
[start
+ i
];
221 debug_printf("Element[%u + %u] -> Vertex %u:\n", start
, i
, ii
);
224 /* non-indexed arrays */
226 debug_printf("Vertex %u:\n", ii
);
229 for (j
= 0; j
< draw
->pt
.nr_vertex_elements
; j
++) {
230 uint buf
= draw
->pt
.vertex_element
[j
].vertex_buffer_index
;
231 ubyte
*ptr
= (ubyte
*) draw
->pt
.user
.vbuffer
[buf
];
232 ptr
+= draw
->pt
.vertex_buffer
[buf
].stride
* ii
;
233 ptr
+= draw
->pt
.vertex_element
[j
].src_offset
;
235 debug_printf(" Attr %u: ", j
);
236 switch (draw
->pt
.vertex_element
[j
].src_format
) {
237 case PIPE_FORMAT_R32_FLOAT
:
239 float *v
= (float *) ptr
;
240 debug_printf("%f @ %p\n", v
[0], (void *) v
);
243 case PIPE_FORMAT_R32G32_FLOAT
:
245 float *v
= (float *) ptr
;
246 debug_printf("%f %f @ %p\n", v
[0], v
[1], (void *) v
);
249 case PIPE_FORMAT_R32G32B32_FLOAT
:
251 float *v
= (float *) ptr
;
252 debug_printf("%f %f %f @ %p\n", v
[0], v
[1], v
[2], (void *) v
);
255 case PIPE_FORMAT_R32G32B32A32_FLOAT
:
257 float *v
= (float *) ptr
;
258 debug_printf("%f %f %f %f @ %p\n", v
[0], v
[1], v
[2], v
[3],
263 debug_printf("other format (fix me)\n");
273 * This is the main entrypoint into the drawing module.
274 * \param prim one of PIPE_PRIM_x
275 * \param start index of first vertex to draw
276 * \param count number of vertices to draw
279 draw_arrays(struct draw_context
*draw
, unsigned prim
,
280 unsigned start
, unsigned count
)
282 draw_arrays_instanced(draw
, prim
, start
, count
, 0, 1);
286 draw_arrays_instanced(struct draw_context
*draw
,
290 unsigned startInstance
,
291 unsigned instanceCount
)
293 unsigned reduced_prim
= u_reduced_prim(mode
);
296 if (reduced_prim
!= draw
->reduced_prim
) {
297 draw_do_flush(draw
, DRAW_FLUSH_STATE_CHANGE
);
298 draw
->reduced_prim
= reduced_prim
;
302 draw_print_arrays(draw
, mode
, start
, MIN2(count
, 20));
307 debug_printf("draw_arrays(mode=%u start=%u count=%u):\n",
309 tgsi_dump(draw
->vs
.vertex_shader
->state
.tokens
, 0);
310 debug_printf("Elements:\n");
311 for (i
= 0; i
< draw
->pt
.nr_vertex_elements
; i
++) {
312 debug_printf(" format=%s comps=%u\n",
313 pf_name(draw
->pt
.vertex_element
[i
].src_format
),
314 draw
->pt
.vertex_element
[i
].nr_components
);
316 debug_printf("Buffers:\n");
317 for (i
= 0; i
< draw
->pt
.nr_vertex_buffers
; i
++) {
318 debug_printf(" stride=%u offset=%u ptr=%p\n",
319 draw
->pt
.vertex_buffer
[i
].stride
,
320 draw
->pt
.vertex_buffer
[i
].buffer_offset
,
321 draw
->pt
.user
.vbuffer
[i
]);
326 for (instance
= 0; instance
< instanceCount
; instance
++) {
327 draw
->instance_id
= instance
+ startInstance
;
328 draw_pt_arrays(draw
, mode
, start
, count
);