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"
41 DEBUG_GET_ONCE_BOOL_OPTION(draw_fse
, "DRAW_FSE", FALSE
)
42 DEBUG_GET_ONCE_BOOL_OPTION(draw_no_fse
, "DRAW_NO_FSE", FALSE
)
44 DEBUG_GET_ONCE_BOOL_OPTION(draw_use_llvm
, "DRAW_USE_LLVM", TRUE
)
47 static unsigned trim( unsigned count
, unsigned first
, unsigned incr
)
51 return count
- (count
- first
) % incr
;
56 /* Overall we split things into:
57 * - frontend -- prepare fetch_elts, draw_elts - eg vcache
58 * - middle -- fetch, shade, cliptest, viewport
59 * - pipeline -- the prim pipeline: clipping, wide lines, etc
60 * - backend -- the vbuf_render provided by the driver.
63 draw_pt_arrays(struct draw_context
*draw
,
68 struct draw_pt_front_end
*frontend
= NULL
;
69 struct draw_pt_middle_end
*middle
= NULL
;
72 /* Sanitize primitive length:
76 draw_pt_split_prim(prim
, &first
, &incr
);
77 count
= trim(count
, first
, incr
);
82 if (!draw
->force_passthrough
) {
87 if (draw_need_pipeline(draw
,
93 if (!draw
->bypass_clipping
&& !draw
->pt
.test_fse
) {
100 if (draw
->pt
.middle
.llvm
&& !draw
->gs
.geometry_shader
) {
101 middle
= draw
->pt
.middle
.llvm
;
104 middle
= draw
->pt
.middle
.fetch_emit
;
105 else if (opt
== PT_SHADE
&& !draw
->pt
.no_fse
)
106 middle
= draw
->pt
.middle
.fetch_shade_emit
;
108 middle
= draw
->pt
.middle
.general
;
112 /* Pick the right frontend
114 if (draw
->pt
.user
.elts
|| (opt
& PT_PIPELINE
)) {
115 frontend
= draw
->pt
.front
.vcache
;
117 frontend
= draw
->pt
.front
.varray
;
120 frontend
->prepare( frontend
, prim
, middle
, opt
);
122 frontend
->run(frontend
,
123 draw_pt_elt_func(draw
),
124 draw_pt_elt_ptr(draw
, start
),
125 draw
->pt
.user
.eltBias
,
128 frontend
->finish( frontend
);
134 boolean
draw_pt_init( struct draw_context
*draw
)
136 draw
->pt
.test_fse
= debug_get_option_draw_fse();
137 draw
->pt
.no_fse
= debug_get_option_draw_no_fse();
139 draw
->pt
.front
.vcache
= draw_pt_vcache( draw
);
140 if (!draw
->pt
.front
.vcache
)
143 draw
->pt
.front
.varray
= draw_pt_varray(draw
);
144 if (!draw
->pt
.front
.varray
)
147 draw
->pt
.middle
.fetch_emit
= draw_pt_fetch_emit( draw
);
148 if (!draw
->pt
.middle
.fetch_emit
)
151 draw
->pt
.middle
.fetch_shade_emit
= draw_pt_middle_fse( draw
);
152 if (!draw
->pt
.middle
.fetch_shade_emit
)
155 draw
->pt
.middle
.general
= draw_pt_fetch_pipeline_or_emit( draw
);
156 if (!draw
->pt
.middle
.general
)
160 if (debug_get_option_draw_use_llvm())
161 draw
->pt
.middle
.llvm
= draw_pt_fetch_pipeline_or_emit_llvm( draw
);
168 void draw_pt_destroy( struct draw_context
*draw
)
170 if (draw
->pt
.middle
.llvm
) {
171 draw
->pt
.middle
.llvm
->destroy( draw
->pt
.middle
.llvm
);
172 draw
->pt
.middle
.llvm
= NULL
;
175 if (draw
->pt
.middle
.general
) {
176 draw
->pt
.middle
.general
->destroy( draw
->pt
.middle
.general
);
177 draw
->pt
.middle
.general
= NULL
;
180 if (draw
->pt
.middle
.fetch_emit
) {
181 draw
->pt
.middle
.fetch_emit
->destroy( draw
->pt
.middle
.fetch_emit
);
182 draw
->pt
.middle
.fetch_emit
= NULL
;
185 if (draw
->pt
.middle
.fetch_shade_emit
) {
186 draw
->pt
.middle
.fetch_shade_emit
->destroy( draw
->pt
.middle
.fetch_shade_emit
);
187 draw
->pt
.middle
.fetch_shade_emit
= NULL
;
190 if (draw
->pt
.front
.vcache
) {
191 draw
->pt
.front
.vcache
->destroy( draw
->pt
.front
.vcache
);
192 draw
->pt
.front
.vcache
= NULL
;
195 if (draw
->pt
.front
.varray
) {
196 draw
->pt
.front
.varray
->destroy( draw
->pt
.front
.varray
);
197 draw
->pt
.front
.varray
= NULL
;
203 * Debug- print the first 'count' vertices.
206 draw_print_arrays(struct draw_context
*draw
, uint prim
, int start
, uint count
)
210 debug_printf("Draw arrays(prim = %u, start = %u, count = %u)\n",
213 for (i
= 0; i
< count
; i
++) {
217 if (draw
->pt
.user
.elts
) {
219 switch (draw
->pt
.user
.eltSize
) {
222 const ubyte
*elem
= (const ubyte
*) draw
->pt
.user
.elts
;
223 ii
= elem
[start
+ i
];
228 const ushort
*elem
= (const ushort
*) draw
->pt
.user
.elts
;
229 ii
= elem
[start
+ i
];
234 const uint
*elem
= (const uint
*) draw
->pt
.user
.elts
;
235 ii
= elem
[start
+ i
];
242 ii
+= draw
->pt
.user
.eltBias
;
243 debug_printf("Element[%u + %u] + %i -> Vertex %u:\n", start
, i
,
244 draw
->pt
.user
.eltBias
, ii
);
247 /* non-indexed arrays */
249 debug_printf("Vertex %u:\n", ii
);
252 for (j
= 0; j
< draw
->pt
.nr_vertex_elements
; j
++) {
253 uint buf
= draw
->pt
.vertex_element
[j
].vertex_buffer_index
;
254 ubyte
*ptr
= (ubyte
*) draw
->pt
.user
.vbuffer
[buf
];
255 ptr
+= draw
->pt
.vertex_buffer
[buf
].stride
* ii
;
256 ptr
+= draw
->pt
.vertex_element
[j
].src_offset
;
258 debug_printf(" Attr %u: ", j
);
259 switch (draw
->pt
.vertex_element
[j
].src_format
) {
260 case PIPE_FORMAT_R32_FLOAT
:
262 float *v
= (float *) ptr
;
263 debug_printf("%f @ %p\n", v
[0], (void *) v
);
266 case PIPE_FORMAT_R32G32_FLOAT
:
268 float *v
= (float *) ptr
;
269 debug_printf("%f %f @ %p\n", v
[0], v
[1], (void *) v
);
272 case PIPE_FORMAT_R32G32B32_FLOAT
:
274 float *v
= (float *) ptr
;
275 debug_printf("%f %f %f @ %p\n", v
[0], v
[1], v
[2], (void *) v
);
278 case PIPE_FORMAT_R32G32B32A32_FLOAT
:
280 float *v
= (float *) ptr
;
281 debug_printf("%f %f %f %f @ %p\n", v
[0], v
[1], v
[2], v
[3],
286 debug_printf("other format (fix me)\n");
296 * This is the main entrypoint into the drawing module.
297 * \param prim one of PIPE_PRIM_x
298 * \param start index of first vertex to draw
299 * \param count number of vertices to draw
302 draw_arrays(struct draw_context
*draw
, unsigned prim
,
303 unsigned start
, unsigned count
)
305 draw_arrays_instanced(draw
, prim
, start
, count
, 0, 1);
309 draw_arrays_instanced(struct draw_context
*draw
,
313 unsigned startInstance
,
314 unsigned instanceCount
)
316 unsigned reduced_prim
= u_reduced_prim(mode
);
319 if (reduced_prim
!= draw
->reduced_prim
) {
320 draw_do_flush(draw
, DRAW_FLUSH_STATE_CHANGE
);
321 draw
->reduced_prim
= reduced_prim
;
325 draw_print_arrays(draw
, mode
, start
, MIN2(count
, 20));
330 debug_printf("draw_arrays(mode=%u start=%u count=%u):\n",
332 tgsi_dump(draw
->vs
.vertex_shader
->state
.tokens
, 0);
333 debug_printf("Elements:\n");
334 for (i
= 0; i
< draw
->pt
.nr_vertex_elements
; i
++) {
335 debug_printf(" format=%s\n",
336 util_format_name(draw
->pt
.vertex_element
[i
].src_format
));
338 debug_printf("Buffers:\n");
339 for (i
= 0; i
< draw
->pt
.nr_vertex_buffers
; i
++) {
340 debug_printf(" stride=%u offset=%u ptr=%p\n",
341 draw
->pt
.vertex_buffer
[i
].stride
,
342 draw
->pt
.vertex_buffer
[i
].buffer_offset
,
343 draw
->pt
.user
.vbuffer
[i
]);
348 for (instance
= 0; instance
< instanceCount
; instance
++) {
349 draw
->instance_id
= instance
+ startInstance
;
350 draw_pt_arrays(draw
, mode
, start
, count
);