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_gs.h"
35 #include "draw/draw_private.h"
36 #include "draw/draw_pt.h"
37 #include "tgsi/tgsi_dump.h"
38 #include "util/u_math.h"
39 #include "util/u_prim.h"
42 DEBUG_GET_ONCE_BOOL_OPTION(draw_fse
, "DRAW_FSE", FALSE
)
43 DEBUG_GET_ONCE_BOOL_OPTION(draw_no_fse
, "DRAW_NO_FSE", FALSE
)
45 DEBUG_GET_ONCE_BOOL_OPTION(draw_use_llvm
, "DRAW_USE_LLVM", TRUE
)
48 static unsigned trim( unsigned count
, unsigned first
, unsigned incr
)
52 return count
- (count
- first
) % incr
;
57 /* Overall we split things into:
58 * - frontend -- prepare fetch_elts, draw_elts - eg vcache
59 * - middle -- fetch, shade, cliptest, viewport
60 * - pipeline -- the prim pipeline: clipping, wide lines, etc
61 * - backend -- the vbuf_render provided by the driver.
64 draw_pt_arrays(struct draw_context
*draw
,
69 struct draw_pt_front_end
*frontend
= NULL
;
70 struct draw_pt_middle_end
*middle
= NULL
;
73 /* Sanitize primitive length:
77 draw_pt_split_prim(prim
, &first
, &incr
);
78 count
= trim(count
, first
, incr
);
83 if (!draw
->force_passthrough
) {
84 unsigned gs_out_prim
= (draw
->gs
.geometry_shader
?
85 draw
->gs
.geometry_shader
->output_primitive
:
92 if (draw_need_pipeline(draw
,
98 if (!draw
->bypass_clipping
&& !draw
->pt
.test_fse
) {
105 if (draw
->pt
.middle
.llvm
&& !draw
->gs
.geometry_shader
) {
106 middle
= draw
->pt
.middle
.llvm
;
109 middle
= draw
->pt
.middle
.fetch_emit
;
110 else if (opt
== PT_SHADE
&& !draw
->pt
.no_fse
)
111 middle
= draw
->pt
.middle
.fetch_shade_emit
;
113 middle
= draw
->pt
.middle
.general
;
117 /* Pick the right frontend
119 if (draw
->pt
.user
.elts
|| (opt
& PT_PIPELINE
)) {
120 frontend
= draw
->pt
.front
.vcache
;
122 frontend
= draw
->pt
.front
.varray
;
125 frontend
->prepare( frontend
, prim
, middle
, opt
);
127 frontend
->run(frontend
,
128 draw_pt_elt_func(draw
),
129 draw_pt_elt_ptr(draw
, start
),
130 draw
->pt
.user
.eltBias
,
133 frontend
->finish( frontend
);
139 boolean
draw_pt_init( struct draw_context
*draw
)
141 draw
->pt
.test_fse
= debug_get_option_draw_fse();
142 draw
->pt
.no_fse
= debug_get_option_draw_no_fse();
144 draw
->pt
.front
.vcache
= draw_pt_vcache( draw
);
145 if (!draw
->pt
.front
.vcache
)
148 draw
->pt
.front
.varray
= draw_pt_varray(draw
);
149 if (!draw
->pt
.front
.varray
)
152 draw
->pt
.middle
.fetch_emit
= draw_pt_fetch_emit( draw
);
153 if (!draw
->pt
.middle
.fetch_emit
)
156 draw
->pt
.middle
.fetch_shade_emit
= draw_pt_middle_fse( draw
);
157 if (!draw
->pt
.middle
.fetch_shade_emit
)
160 draw
->pt
.middle
.general
= draw_pt_fetch_pipeline_or_emit( draw
);
161 if (!draw
->pt
.middle
.general
)
165 if (debug_get_option_draw_use_llvm())
166 draw
->pt
.middle
.llvm
= draw_pt_fetch_pipeline_or_emit_llvm( draw
);
173 void draw_pt_destroy( struct draw_context
*draw
)
175 if (draw
->pt
.middle
.llvm
) {
176 draw
->pt
.middle
.llvm
->destroy( draw
->pt
.middle
.llvm
);
177 draw
->pt
.middle
.llvm
= NULL
;
180 if (draw
->pt
.middle
.general
) {
181 draw
->pt
.middle
.general
->destroy( draw
->pt
.middle
.general
);
182 draw
->pt
.middle
.general
= NULL
;
185 if (draw
->pt
.middle
.fetch_emit
) {
186 draw
->pt
.middle
.fetch_emit
->destroy( draw
->pt
.middle
.fetch_emit
);
187 draw
->pt
.middle
.fetch_emit
= NULL
;
190 if (draw
->pt
.middle
.fetch_shade_emit
) {
191 draw
->pt
.middle
.fetch_shade_emit
->destroy( draw
->pt
.middle
.fetch_shade_emit
);
192 draw
->pt
.middle
.fetch_shade_emit
= NULL
;
195 if (draw
->pt
.front
.vcache
) {
196 draw
->pt
.front
.vcache
->destroy( draw
->pt
.front
.vcache
);
197 draw
->pt
.front
.vcache
= NULL
;
200 if (draw
->pt
.front
.varray
) {
201 draw
->pt
.front
.varray
->destroy( draw
->pt
.front
.varray
);
202 draw
->pt
.front
.varray
= NULL
;
208 * Debug- print the first 'count' vertices.
211 draw_print_arrays(struct draw_context
*draw
, uint prim
, int start
, uint count
)
215 debug_printf("Draw arrays(prim = %u, start = %u, count = %u)\n",
218 for (i
= 0; i
< count
; i
++) {
222 if (draw
->pt
.user
.elts
) {
224 switch (draw
->pt
.user
.eltSize
) {
227 const ubyte
*elem
= (const ubyte
*) draw
->pt
.user
.elts
;
228 ii
= elem
[start
+ i
];
233 const ushort
*elem
= (const ushort
*) draw
->pt
.user
.elts
;
234 ii
= elem
[start
+ i
];
239 const uint
*elem
= (const uint
*) draw
->pt
.user
.elts
;
240 ii
= elem
[start
+ i
];
247 ii
+= draw
->pt
.user
.eltBias
;
248 debug_printf("Element[%u + %u] + %i -> Vertex %u:\n", start
, i
,
249 draw
->pt
.user
.eltBias
, ii
);
252 /* non-indexed arrays */
254 debug_printf("Vertex %u:\n", ii
);
257 for (j
= 0; j
< draw
->pt
.nr_vertex_elements
; j
++) {
258 uint buf
= draw
->pt
.vertex_element
[j
].vertex_buffer_index
;
259 ubyte
*ptr
= (ubyte
*) draw
->pt
.user
.vbuffer
[buf
];
260 ptr
+= draw
->pt
.vertex_buffer
[buf
].stride
* ii
;
261 ptr
+= draw
->pt
.vertex_element
[j
].src_offset
;
263 debug_printf(" Attr %u: ", j
);
264 switch (draw
->pt
.vertex_element
[j
].src_format
) {
265 case PIPE_FORMAT_R32_FLOAT
:
267 float *v
= (float *) ptr
;
268 debug_printf("%f @ %p\n", v
[0], (void *) v
);
271 case PIPE_FORMAT_R32G32_FLOAT
:
273 float *v
= (float *) ptr
;
274 debug_printf("%f %f @ %p\n", v
[0], v
[1], (void *) v
);
277 case PIPE_FORMAT_R32G32B32_FLOAT
:
279 float *v
= (float *) ptr
;
280 debug_printf("%f %f %f @ %p\n", v
[0], v
[1], v
[2], (void *) v
);
283 case PIPE_FORMAT_R32G32B32A32_FLOAT
:
285 float *v
= (float *) ptr
;
286 debug_printf("%f %f %f %f @ %p\n", v
[0], v
[1], v
[2], v
[3],
291 debug_printf("other format (fix me)\n");
301 * This is the main entrypoint into the drawing module.
302 * \param prim one of PIPE_PRIM_x
303 * \param start index of first vertex to draw
304 * \param count number of vertices to draw
307 draw_arrays(struct draw_context
*draw
, unsigned prim
,
308 unsigned start
, unsigned count
)
310 draw_arrays_instanced(draw
, prim
, start
, count
, 0, 1);
314 draw_arrays_instanced(struct draw_context
*draw
,
318 unsigned startInstance
,
319 unsigned instanceCount
)
321 unsigned reduced_prim
= u_reduced_prim(mode
);
324 if (reduced_prim
!= draw
->reduced_prim
) {
325 draw_do_flush(draw
, DRAW_FLUSH_STATE_CHANGE
);
326 draw
->reduced_prim
= reduced_prim
;
330 draw_print_arrays(draw
, mode
, start
, MIN2(count
, 20));
335 debug_printf("draw_arrays(mode=%u start=%u count=%u):\n",
337 tgsi_dump(draw
->vs
.vertex_shader
->state
.tokens
, 0);
338 debug_printf("Elements:\n");
339 for (i
= 0; i
< draw
->pt
.nr_vertex_elements
; i
++) {
340 debug_printf(" format=%s\n",
341 util_format_name(draw
->pt
.vertex_element
[i
].src_format
));
343 debug_printf("Buffers:\n");
344 for (i
= 0; i
< draw
->pt
.nr_vertex_buffers
; i
++) {
345 debug_printf(" stride=%u offset=%u ptr=%p\n",
346 draw
->pt
.vertex_buffer
[i
].stride
,
347 draw
->pt
.vertex_buffer
[i
].buffer_offset
,
348 draw
->pt
.user
.vbuffer
[i
]);
353 for (instance
= 0; instance
< instanceCount
; instance
++) {
354 draw
->instance_id
= instance
+ startInstance
;
355 draw_pt_arrays(draw
, mode
, start
, count
);