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 "draw/draw_context.h"
27 #include "draw/draw_vbuf.h"
28 #include "util/u_bitmask.h"
29 #include "util/u_inlines.h"
30 #include "pipe/p_state.h"
33 #include "svga_context.h"
34 #include "svga_shader.h"
35 #include "svga_swtnl.h"
36 #include "svga_state.h"
37 #include "svga_tgsi.h"
38 #include "svga_swtnl_private.h"
41 #define SVGA_POINT_ADJ_X -0.375f
42 #define SVGA_POINT_ADJ_Y -0.5f
44 #define SVGA_LINE_ADJ_X -0.5f
45 #define SVGA_LINE_ADJ_Y -0.5f
47 #define SVGA_TRIANGLE_ADJ_X -0.375f
48 #define SVGA_TRIANGLE_ADJ_Y -0.5f
51 static void set_draw_viewport( struct svga_context
*svga
)
53 struct pipe_viewport_state vp
= svga
->curr
.viewport
;
57 if (svga_have_vgpu10(svga
)) {
58 if (svga
->curr
.reduced_prim
== PIPE_PRIM_TRIANGLES
) {
63 switch (svga
->curr
.reduced_prim
) {
64 case PIPE_PRIM_POINTS
:
65 adjx
= SVGA_POINT_ADJ_X
;
66 adjy
= SVGA_POINT_ADJ_Y
;
69 /* XXX: This is to compensate for the fact that wide lines are
70 * going to be drawn with triangles, but we're not catching all
71 * cases where that will happen.
73 if (svga
->curr
.rast
->need_pipeline
& SVGA_PIPELINE_FLAG_LINES
)
75 adjx
= SVGA_LINE_ADJ_X
+ 0.175f
;
76 adjy
= SVGA_LINE_ADJ_Y
- 0.175f
;
79 adjx
= SVGA_LINE_ADJ_X
;
80 adjy
= SVGA_LINE_ADJ_Y
;
83 case PIPE_PRIM_TRIANGLES
:
84 adjx
+= SVGA_TRIANGLE_ADJ_X
;
85 adjy
+= SVGA_TRIANGLE_ADJ_Y
;
90 vp
.translate
[0] += adjx
;
91 vp
.translate
[1] += adjy
;
93 draw_set_viewport_states(svga
->swtnl
.draw
, 0, 1, &vp
);
96 static enum pipe_error
97 update_swtnl_draw( struct svga_context
*svga
,
100 draw_flush( svga
->swtnl
.draw
);
102 if (dirty
& SVGA_NEW_VS
)
103 draw_bind_vertex_shader(svga
->swtnl
.draw
,
104 svga
->curr
.vs
->draw_shader
);
106 if (dirty
& SVGA_NEW_FS
)
107 draw_bind_fragment_shader(svga
->swtnl
.draw
,
108 svga
->curr
.fs
->draw_shader
);
110 if (dirty
& SVGA_NEW_VBUFFER
)
111 draw_set_vertex_buffers(svga
->swtnl
.draw
, 0,
112 svga
->curr
.num_vertex_buffers
,
115 if (dirty
& SVGA_NEW_VELEMENT
)
116 draw_set_vertex_elements(svga
->swtnl
.draw
,
117 svga
->curr
.velems
->count
,
118 svga
->curr
.velems
->velem
);
120 if (dirty
& SVGA_NEW_CLIP
)
121 draw_set_clip_state(svga
->swtnl
.draw
,
124 if (dirty
& (SVGA_NEW_VIEWPORT
|
125 SVGA_NEW_REDUCED_PRIMITIVE
|
127 set_draw_viewport( svga
);
129 if (dirty
& SVGA_NEW_RAST
)
130 draw_set_rasterizer_state(svga
->swtnl
.draw
,
131 &svga
->curr
.rast
->templ
,
132 (void *) svga
->curr
.rast
);
134 /* Tell the draw module how deep the Z/depth buffer is.
136 * If no depth buffer is bound, send the utility function the
137 * format for no bound depth (PIPE_FORMAT_NONE).
139 if (dirty
& SVGA_NEW_FRAME_BUFFER
)
140 draw_set_zs_format(svga
->swtnl
.draw
,
141 (svga
->curr
.framebuffer
.zsbuf
) ?
142 svga
->curr
.framebuffer
.zsbuf
->format
: PIPE_FORMAT_NONE
);
148 struct svga_tracked_state svga_update_swtnl_draw
=
150 "update draw module state",
157 SVGA_NEW_FRAME_BUFFER
|
158 SVGA_NEW_REDUCED_PRIMITIVE
),
163 static SVGA3dSurfaceFormat
164 translate_vertex_format(SVGA3dDeclType format
)
167 case SVGA3D_DECLTYPE_FLOAT1
:
168 return SVGA3D_R32_FLOAT
;
169 case SVGA3D_DECLTYPE_FLOAT2
:
170 return SVGA3D_R32G32_FLOAT
;
171 case SVGA3D_DECLTYPE_FLOAT3
:
172 return SVGA3D_R32G32B32_FLOAT
;
173 case SVGA3D_DECLTYPE_FLOAT4
:
174 return SVGA3D_R32G32B32A32_FLOAT
;
176 assert(!"Unexpected format in translate_vertex_format()");
177 return SVGA3D_R32G32B32A32_FLOAT
;
182 static SVGA3dElementLayoutId
183 svga_vdecl_to_input_element(struct svga_context
*svga
,
184 const SVGA3dVertexDecl
*vdecl
, unsigned num_decls
)
186 SVGA3dElementLayoutId id
;
187 SVGA3dInputElementDesc elements
[PIPE_MAX_ATTRIBS
];
191 assert(num_decls
<= PIPE_MAX_ATTRIBS
);
192 assert(svga_have_vgpu10(svga
));
194 for (i
= 0; i
< num_decls
; i
++) {
195 elements
[i
].inputSlot
= 0; /* vertex buffer index */
196 elements
[i
].alignedByteOffset
= vdecl
[i
].array
.offset
;
197 elements
[i
].format
= translate_vertex_format(vdecl
[i
].identity
.type
);
198 elements
[i
].inputSlotClass
= SVGA3D_INPUT_PER_VERTEX_DATA
;
199 elements
[i
].instanceDataStepRate
= 0;
200 elements
[i
].inputRegister
= i
;
203 id
= util_bitmask_add(svga
->input_element_object_id_bm
);
205 ret
= SVGA3D_vgpu10_DefineElementLayout(svga
->swc
, num_decls
, id
, elements
);
206 if (ret
!= PIPE_OK
) {
207 svga_context_flush(svga
, NULL
);
208 ret
= SVGA3D_vgpu10_DefineElementLayout(svga
->swc
, num_decls
, id
, elements
);
209 assert(ret
== PIPE_OK
);
217 svga_swtnl_update_vdecl( struct svga_context
*svga
)
219 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(svga
->swtnl
.backend
);
220 struct draw_context
*draw
= svga
->swtnl
.draw
;
221 struct vertex_info
*vinfo
= &svga_render
->vertex_info
;
222 SVGA3dVertexDecl vdecl
[PIPE_MAX_ATTRIBS
];
223 const enum interp_mode colorInterp
=
224 svga
->curr
.rast
->templ
.flatshade
? INTERP_CONSTANT
: INTERP_LINEAR
;
225 struct svga_fragment_shader
*fs
= svga
->curr
.fs
;
232 memset(vinfo
, 0, sizeof(*vinfo
));
233 memset(vdecl
, 0, sizeof(vdecl
));
235 draw_prepare_shader_outputs(draw
);
237 /* always add position */
238 src
= draw_find_shader_output(draw
, TGSI_SEMANTIC_POSITION
, 0);
239 draw_emit_vertex_attr(vinfo
, EMIT_4F
, INTERP_LINEAR
, src
);
240 vinfo
->attrib
[0].emit
= EMIT_4F
;
241 vdecl
[0].array
.offset
= offset
;
242 vdecl
[0].identity
.method
= SVGA3D_DECLMETHOD_DEFAULT
;
243 vdecl
[0].identity
.type
= SVGA3D_DECLTYPE_FLOAT4
;
244 vdecl
[0].identity
.usage
= SVGA3D_DECLUSAGE_POSITIONT
;
245 vdecl
[0].identity
.usageIndex
= 0;
249 for (i
= 0; i
< fs
->base
.info
.num_inputs
; i
++) {
250 const unsigned sem_name
= fs
->base
.info
.input_semantic_name
[i
];
251 const unsigned sem_index
= fs
->base
.info
.input_semantic_index
[i
];
253 src
= draw_find_shader_output(draw
, sem_name
, sem_index
);
255 vdecl
[nr_decls
].array
.offset
= offset
;
256 vdecl
[nr_decls
].identity
.usageIndex
= sem_index
;
259 case TGSI_SEMANTIC_COLOR
:
260 draw_emit_vertex_attr(vinfo
, EMIT_4F
, colorInterp
, src
);
261 vdecl
[nr_decls
].identity
.usage
= SVGA3D_DECLUSAGE_COLOR
;
262 vdecl
[nr_decls
].identity
.type
= SVGA3D_DECLTYPE_FLOAT4
;
266 case TGSI_SEMANTIC_GENERIC
:
267 draw_emit_vertex_attr(vinfo
, EMIT_4F
, INTERP_PERSPECTIVE
, src
);
268 vdecl
[nr_decls
].identity
.usage
= SVGA3D_DECLUSAGE_TEXCOORD
;
269 vdecl
[nr_decls
].identity
.type
= SVGA3D_DECLTYPE_FLOAT4
;
270 vdecl
[nr_decls
].identity
.usageIndex
=
271 svga_remap_generic_index(fs
->generic_remap_table
, sem_index
);
275 case TGSI_SEMANTIC_FOG
:
276 draw_emit_vertex_attr(vinfo
, EMIT_1F
, INTERP_PERSPECTIVE
, src
);
277 vdecl
[nr_decls
].identity
.usage
= SVGA3D_DECLUSAGE_TEXCOORD
;
278 vdecl
[nr_decls
].identity
.type
= SVGA3D_DECLTYPE_FLOAT1
;
279 assert(vdecl
[nr_decls
].identity
.usageIndex
== 0);
283 case TGSI_SEMANTIC_POSITION
:
284 /* generated internally, not a vertex shader output */
291 draw_compute_vertex_size(vinfo
);
293 svga_render
->vdecl_count
= nr_decls
;
294 for (i
= 0; i
< svga_render
->vdecl_count
; i
++) {
295 vdecl
[i
].array
.stride
= offset
;
298 any_change
= memcmp(svga_render
->vdecl
, vdecl
, sizeof(vdecl
));
300 if (svga_have_vgpu10(svga
)) {
303 if (!any_change
&& svga_render
->layout_id
!= SVGA3D_INVALID_ID
) {
307 if (svga_render
->layout_id
!= SVGA3D_INVALID_ID
) {
309 ret
= SVGA3D_vgpu10_DestroyElementLayout(svga
->swc
,
310 svga_render
->layout_id
);
311 if (ret
!= PIPE_OK
) {
312 svga_context_flush(svga
, NULL
);
313 ret
= SVGA3D_vgpu10_DestroyElementLayout(svga
->swc
,
314 svga_render
->layout_id
);
315 assert(ret
== PIPE_OK
);
319 * reset current layout id state after the element layout is
320 * destroyed, so that if a new layout has the same layout id, we
321 * will know to re-issue the SetInputLayout command.
323 if (svga
->state
.hw_draw
.layout_id
== svga_render
->layout_id
)
324 svga
->state
.hw_draw
.layout_id
= SVGA3D_INVALID_ID
;
326 util_bitmask_clear(svga
->input_element_object_id_bm
,
327 svga_render
->layout_id
);
330 svga_render
->layout_id
=
331 svga_vdecl_to_input_element(svga
, vdecl
, nr_decls
);
334 if (svga
->state
.hw_draw
.layout_id
!= svga_render
->layout_id
) {
335 ret
= SVGA3D_vgpu10_SetInputLayout(svga
->swc
, svga_render
->layout_id
);
336 if (ret
!= PIPE_OK
) {
337 svga_context_flush(svga
, NULL
);
338 ret
= SVGA3D_vgpu10_SetInputLayout(svga
->swc
,
339 svga_render
->layout_id
);
340 assert(ret
== PIPE_OK
);
343 svga
->state
.hw_draw
.layout_id
= svga_render
->layout_id
;
351 memcpy(svga_render
->vdecl
, vdecl
, sizeof(vdecl
));
352 svga
->swtnl
.new_vdecl
= TRUE
;
358 static enum pipe_error
359 update_swtnl_vdecl( struct svga_context
*svga
,
362 return svga_swtnl_update_vdecl( svga
);
366 struct svga_tracked_state svga_update_swtnl_vdecl
=
368 "update draw module vdecl",