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 "draw/draw_vs.h"
38 #include "tgsi/tgsi_dump.h"
39 #include "util/u_math.h"
40 #include "util/u_prim.h"
41 #include "util/u_format.h"
44 DEBUG_GET_ONCE_BOOL_OPTION(draw_fse
, "DRAW_FSE", FALSE
)
45 DEBUG_GET_ONCE_BOOL_OPTION(draw_no_fse
, "DRAW_NO_FSE", FALSE
)
47 DEBUG_GET_ONCE_BOOL_OPTION(draw_use_llvm
, "DRAW_USE_LLVM", TRUE
)
50 /* Overall we split things into:
51 * - frontend -- prepare fetch_elts, draw_elts - eg vcache
52 * - middle -- fetch, shade, cliptest, viewport
53 * - pipeline -- the prim pipeline: clipping, wide lines, etc
54 * - backend -- the vbuf_render provided by the driver.
57 draw_pt_arrays(struct draw_context
*draw
,
62 struct draw_pt_front_end
*frontend
= NULL
;
63 struct draw_pt_middle_end
*middle
= NULL
;
66 /* Sanitize primitive length:
70 draw_pt_split_prim(prim
, &first
, &incr
);
71 count
= draw_pt_trim_count(count
, first
, incr
);
76 if (!draw
->force_passthrough
) {
77 unsigned gs_out_prim
= (draw
->gs
.geometry_shader
?
78 draw
->gs
.geometry_shader
->output_primitive
:
85 if (draw_need_pipeline(draw
,
91 if (!draw
->bypass_clipping
&& !draw
->pt
.test_fse
) {
98 if (draw
->pt
.middle
.llvm
) {
99 middle
= draw
->pt
.middle
.llvm
;
102 middle
= draw
->pt
.middle
.fetch_emit
;
103 else if (opt
== PT_SHADE
&& !draw
->pt
.no_fse
)
104 middle
= draw
->pt
.middle
.fetch_shade_emit
;
106 middle
= draw
->pt
.middle
.general
;
110 /* Pick the right frontend
112 if (draw
->pt
.user
.elts
|| (opt
& PT_PIPELINE
)) {
113 frontend
= draw
->pt
.front
.vcache
;
116 frontend
= draw
->pt
.front
.vsplit
;
119 frontend
->prepare( frontend
, prim
, middle
, opt
);
121 frontend
->run(frontend
, start
, count
);
123 frontend
->finish( frontend
);
129 boolean
draw_pt_init( struct draw_context
*draw
)
131 draw
->pt
.test_fse
= debug_get_option_draw_fse();
132 draw
->pt
.no_fse
= debug_get_option_draw_no_fse();
134 draw
->pt
.front
.vcache
= draw_pt_vcache( draw
);
135 if (!draw
->pt
.front
.vcache
)
138 draw
->pt
.front
.vsplit
= draw_pt_vsplit(draw
);
139 if (!draw
->pt
.front
.vsplit
)
142 draw
->pt
.middle
.fetch_emit
= draw_pt_fetch_emit( draw
);
143 if (!draw
->pt
.middle
.fetch_emit
)
146 draw
->pt
.middle
.fetch_shade_emit
= draw_pt_middle_fse( draw
);
147 if (!draw
->pt
.middle
.fetch_shade_emit
)
150 draw
->pt
.middle
.general
= draw_pt_fetch_pipeline_or_emit( draw
);
151 if (!draw
->pt
.middle
.general
)
155 if (debug_get_option_draw_use_llvm())
156 draw
->pt
.middle
.llvm
= draw_pt_fetch_pipeline_or_emit_llvm( draw
);
163 void draw_pt_destroy( struct draw_context
*draw
)
165 if (draw
->pt
.middle
.llvm
) {
166 draw
->pt
.middle
.llvm
->destroy( draw
->pt
.middle
.llvm
);
167 draw
->pt
.middle
.llvm
= NULL
;
170 if (draw
->pt
.middle
.general
) {
171 draw
->pt
.middle
.general
->destroy( draw
->pt
.middle
.general
);
172 draw
->pt
.middle
.general
= NULL
;
175 if (draw
->pt
.middle
.fetch_emit
) {
176 draw
->pt
.middle
.fetch_emit
->destroy( draw
->pt
.middle
.fetch_emit
);
177 draw
->pt
.middle
.fetch_emit
= NULL
;
180 if (draw
->pt
.middle
.fetch_shade_emit
) {
181 draw
->pt
.middle
.fetch_shade_emit
->destroy( draw
->pt
.middle
.fetch_shade_emit
);
182 draw
->pt
.middle
.fetch_shade_emit
= NULL
;
185 if (draw
->pt
.front
.vcache
) {
186 draw
->pt
.front
.vcache
->destroy( draw
->pt
.front
.vcache
);
187 draw
->pt
.front
.vcache
= NULL
;
190 if (draw
->pt
.front
.vsplit
) {
191 draw
->pt
.front
.vsplit
->destroy( draw
->pt
.front
.vsplit
);
192 draw
->pt
.front
.vsplit
= NULL
;
198 * Debug- print the first 'count' vertices.
201 draw_print_arrays(struct draw_context
*draw
, uint prim
, int start
, uint count
)
205 debug_printf("Draw arrays(prim = %u, start = %u, count = %u)\n",
208 for (i
= 0; i
< count
; i
++) {
212 if (draw
->pt
.user
.elts
) {
214 switch (draw
->pt
.user
.eltSize
) {
217 const ubyte
*elem
= (const ubyte
*) draw
->pt
.user
.elts
;
218 ii
= elem
[start
+ i
];
223 const ushort
*elem
= (const ushort
*) draw
->pt
.user
.elts
;
224 ii
= elem
[start
+ i
];
229 const uint
*elem
= (const uint
*) draw
->pt
.user
.elts
;
230 ii
= elem
[start
+ i
];
237 ii
+= draw
->pt
.user
.eltBias
;
238 debug_printf("Element[%u + %u] + %i -> Vertex %u:\n", start
, i
,
239 draw
->pt
.user
.eltBias
, ii
);
242 /* non-indexed arrays */
244 debug_printf("Vertex %u:\n", ii
);
247 for (j
= 0; j
< draw
->pt
.nr_vertex_elements
; j
++) {
248 uint buf
= draw
->pt
.vertex_element
[j
].vertex_buffer_index
;
249 ubyte
*ptr
= (ubyte
*) draw
->pt
.user
.vbuffer
[buf
];
251 if (draw
->pt
.vertex_element
[j
].instance_divisor
) {
252 ii
= draw
->instance_id
/ draw
->pt
.vertex_element
[j
].instance_divisor
;
255 ptr
+= draw
->pt
.vertex_buffer
[buf
].buffer_offset
;
256 ptr
+= draw
->pt
.vertex_buffer
[buf
].stride
* ii
;
257 ptr
+= draw
->pt
.vertex_element
[j
].src_offset
;
259 debug_printf(" Attr %u: ", j
);
260 switch (draw
->pt
.vertex_element
[j
].src_format
) {
261 case PIPE_FORMAT_R32_FLOAT
:
263 float *v
= (float *) ptr
;
264 debug_printf("R %f @ %p\n", v
[0], (void *) v
);
267 case PIPE_FORMAT_R32G32_FLOAT
:
269 float *v
= (float *) ptr
;
270 debug_printf("RG %f %f @ %p\n", v
[0], v
[1], (void *) v
);
273 case PIPE_FORMAT_R32G32B32_FLOAT
:
275 float *v
= (float *) ptr
;
276 debug_printf("RGB %f %f %f @ %p\n", v
[0], v
[1], v
[2], (void *) v
);
279 case PIPE_FORMAT_R32G32B32A32_FLOAT
:
281 float *v
= (float *) ptr
;
282 debug_printf("RGBA %f %f %f %f @ %p\n", v
[0], v
[1], v
[2], v
[3],
286 case PIPE_FORMAT_B8G8R8A8_UNORM
:
288 ubyte
*u
= (ubyte
*) ptr
;
289 debug_printf("BGRA %d %d %d %d @ %p\n", u
[0], u
[1], u
[2], u
[3],
294 debug_printf("other format %s (fix me)\n",
295 util_format_name(draw
->pt
.vertex_element
[j
].src_format
));
303 * Non-instanced drawing.
304 * \sa draw_arrays_instanced
307 draw_arrays(struct draw_context
*draw
, unsigned prim
,
308 unsigned start
, unsigned count
)
310 draw_arrays_instanced(draw
, prim
, start
, count
, 0, 1);
315 * Draw vertex arrays.
316 * This is the main entrypoint into the drawing module.
317 * If drawing an indexed primitive, the draw_set_mapped_element_buffer_range()
318 * function should have already been called to specify the element/index buffer
321 * \param prim one of PIPE_PRIM_x
322 * \param start index of first vertex to draw
323 * \param count number of vertices to draw
324 * \param startInstance number for the first primitive instance (usually 0).
325 * \param instanceCount number of instances to draw (1=non-instanced)
328 draw_arrays_instanced(struct draw_context
*draw
,
332 unsigned startInstance
,
333 unsigned instanceCount
)
335 unsigned reduced_prim
= u_reduced_prim(mode
);
338 assert(instanceCount
> 0);
340 if (reduced_prim
!= draw
->reduced_prim
) {
341 draw_do_flush(draw
, DRAW_FLUSH_STATE_CHANGE
);
342 draw
->reduced_prim
= reduced_prim
;
346 debug_printf("draw_arrays(mode=%u start=%u count=%u):\n",
350 tgsi_dump(draw
->vs
.vertex_shader
->state
.tokens
, 0);
354 debug_printf("Elements:\n");
355 for (i
= 0; i
< draw
->pt
.nr_vertex_elements
; i
++) {
356 debug_printf(" %u: src_offset=%u inst_div=%u vbuf=%u format=%s\n",
358 draw
->pt
.vertex_element
[i
].src_offset
,
359 draw
->pt
.vertex_element
[i
].instance_divisor
,
360 draw
->pt
.vertex_element
[i
].vertex_buffer_index
,
361 util_format_name(draw
->pt
.vertex_element
[i
].src_format
));
363 debug_printf("Buffers:\n");
364 for (i
= 0; i
< draw
->pt
.nr_vertex_buffers
; i
++) {
365 debug_printf(" %u: stride=%u maxindex=%u offset=%u ptr=%p\n",
367 draw
->pt
.vertex_buffer
[i
].stride
,
368 draw
->pt
.vertex_buffer
[i
].max_index
,
369 draw
->pt
.vertex_buffer
[i
].buffer_offset
,
370 draw
->pt
.user
.vbuffer
[i
]);
375 draw_print_arrays(draw
, mode
, start
, MIN2(count
, 20));
377 for (instance
= 0; instance
< instanceCount
; instance
++) {
378 draw
->instance_id
= instance
+ startInstance
;
379 draw_pt_arrays(draw
, mode
, start
, count
);