1 /**********************************************************
2 * Copyright 2008-2009 VMware, Inc. All rights reserved.
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 **********************************************************/
26 #include "pipe/p_inlines.h"
27 #include "pipe/p_defines.h"
28 #include "util/u_format.h"
29 #include "util/u_math.h"
30 #include "translate/translate.h"
32 #include "svga_context.h"
33 #include "svga_state.h"
35 #include "svga_tgsi.h"
37 #include "svga_hw_reg.h"
39 /***********************************************************************
43 static INLINE
int compare_vs_keys( const struct svga_vs_compile_key
*a
,
44 const struct svga_vs_compile_key
*b
)
46 unsigned keysize
= svga_vs_key_size( a
);
47 return memcmp( a
, b
, keysize
);
51 static struct svga_shader_result
*search_vs_key( struct svga_vertex_shader
*vs
,
52 const struct svga_vs_compile_key
*key
)
54 struct svga_shader_result
*result
= vs
->base
.results
;
58 for ( ; result
; result
= result
->next
) {
59 if (compare_vs_keys( key
, &result
->key
.vkey
) == 0)
67 static enum pipe_error
compile_vs( struct svga_context
*svga
,
68 struct svga_vertex_shader
*vs
,
69 const struct svga_vs_compile_key
*key
,
70 struct svga_shader_result
**out_result
)
72 struct svga_shader_result
*result
;
73 enum pipe_error ret
= PIPE_OK
;
75 result
= svga_translate_vertex_program( vs
, key
);
77 ret
= PIPE_ERROR_OUT_OF_MEMORY
;
81 ret
= SVGA3D_DefineShader(svga
->swc
,
82 svga
->state
.next_vs_id
,
85 result
->nr_tokens
* sizeof result
->tokens
[0]);
90 result
->id
= svga
->state
.next_vs_id
++;
91 result
->next
= vs
->base
.results
;
92 vs
->base
.results
= result
;
97 svga_destroy_shader_result( result
);
101 /* SVGA_NEW_PRESCALE, SVGA_NEW_RAST, SVGA_NEW_ZERO_STRIDE
103 static int make_vs_key( struct svga_context
*svga
,
104 struct svga_vs_compile_key
*key
)
106 memset(key
, 0, sizeof *key
);
107 key
->need_prescale
= svga
->state
.hw_clear
.prescale
.enabled
;
108 key
->allow_psiz
= svga
->curr
.rast
->templ
.point_size_per_vertex
;
109 key
->zero_stride_vertex_elements
=
110 svga
->curr
.zero_stride_vertex_elements
;
111 key
->num_zero_stride_vertex_elements
=
112 svga
->curr
.num_zero_stride_vertex_elements
;
118 static int emit_hw_vs( struct svga_context
*svga
,
121 struct svga_shader_result
*result
= NULL
;
122 unsigned id
= SVGA3D_INVALID_ID
;
125 /* SVGA_NEW_NEED_SWTNL */
126 if (!svga
->state
.sw
.need_swtnl
) {
127 struct svga_vertex_shader
*vs
= svga
->curr
.vs
;
128 struct svga_vs_compile_key key
;
130 ret
= make_vs_key( svga
, &key
);
134 result
= search_vs_key( vs
, &key
);
136 ret
= compile_vs( svga
, vs
, &key
, &result
);
145 if (id
!= svga
->state
.hw_draw
.shader_id
[PIPE_SHADER_VERTEX
]) {
146 ret
= SVGA3D_SetShader(svga
->swc
,
147 SVGA3D_SHADERTYPE_VS
,
152 svga
->dirty
|= SVGA_NEW_VS_RESULT
;
153 svga
->state
.hw_draw
.shader_id
[PIPE_SHADER_VERTEX
] = id
;
154 svga
->state
.hw_draw
.vs
= result
;
160 struct svga_tracked_state svga_hw_vs
=
162 "vertex shader (hwtnl)",
165 SVGA_NEW_NEED_SWTNL
|
166 SVGA_NEW_ZERO_STRIDE
),
171 /***********************************************************************
173 static int update_zero_stride( struct svga_context
*svga
,
178 svga
->curr
.zero_stride_vertex_elements
= 0;
179 svga
->curr
.num_zero_stride_vertex_elements
= 0;
181 for (i
= 0; i
< svga
->curr
.num_vertex_elements
; i
++) {
182 const struct pipe_vertex_element
*vel
= &svga
->curr
.ve
[i
];
183 const struct pipe_vertex_buffer
*vbuffer
= &svga
->curr
.vb
[
184 vel
->vertex_buffer_index
];
185 if (vbuffer
->stride
== 0) {
187 svga
->curr
.num_zero_stride_vertex_elements
;
188 struct translate
*translate
;
189 struct translate_key key
;
192 svga
->curr
.zero_stride_vertex_elements
|= (1 << i
);
193 ++svga
->curr
.num_zero_stride_vertex_elements
;
195 key
.output_stride
= 4 * sizeof(float);
197 key
.element
[0].input_format
= vel
->src_format
;
198 key
.element
[0].output_format
= PIPE_FORMAT_R32G32B32A32_FLOAT
;
199 key
.element
[0].input_buffer
= vel
->vertex_buffer_index
;
200 key
.element
[0].input_offset
= vel
->src_offset
;
201 key
.element
[0].output_offset
= const_idx
* 4 * sizeof(float);
203 translate_key_sanitize(&key
);
204 /* translate_generic_create is technically private but
205 * we don't want to code-generate, just want generic
207 translate
= translate_generic_create(&key
);
209 assert(vel
->src_offset
== 0);
211 mapped_buffer
= pipe_buffer_map_range(svga
->pipe
.screen
,
214 util_format_get_blocksize(vel
->src_format
),
215 PIPE_BUFFER_USAGE_CPU_READ
);
216 translate
->set_buffer(translate
, vel
->vertex_buffer_index
,
219 translate
->run(translate
, 0, 1,
220 svga
->curr
.zero_stride_constants
);
222 pipe_buffer_unmap(svga
->pipe
.screen
,
224 translate
->release(translate
);
228 if (svga
->curr
.num_zero_stride_vertex_elements
)
229 svga
->dirty
|= SVGA_NEW_ZERO_STRIDE
;
234 struct svga_tracked_state svga_hw_update_zero_stride
=
236 "update zero_stride",
237 ( SVGA_NEW_VELEMENT
|