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"
29 #include "svga_context.h"
30 #include "svga_state.h"
32 #include "svga_tgsi.h"
33 #include "svga_debug.h"
35 #include "svga_hw_reg.h"
37 /***********************************************************************
41 /* Convert from PIPE_SHADER_* to SVGA3D_SHADERTYPE_*
43 static int svga_shader_type( int unit
)
49 static int emit_const( struct svga_context
*svga
,
56 if (memcmp(svga
->state
.hw_draw
.cb
[unit
][i
], value
, 4 * sizeof(float)) != 0) {
57 if (SVGA_DEBUG
& DEBUG_CONSTS
)
58 debug_printf("%s %s %d: %f %f %f %f\n",
60 unit
== PIPE_SHADER_VERTEX
? "VERT" : "FRAG",
67 ret
= SVGA3D_SetShaderConst( svga
->swc
,
69 svga_shader_type(unit
),
70 SVGA3D_CONST_TYPE_FLOAT
,
75 memcpy(svga
->state
.hw_draw
.cb
[unit
][i
], value
, 4 * sizeof(float));
81 static int emit_consts( struct svga_context
*svga
,
85 struct pipe_screen
*screen
= svga
->pipe
.screen
;
87 const float (*data
)[4] = NULL
;
91 if (svga
->curr
.cb
[unit
] == NULL
)
94 count
= svga
->curr
.cb
[unit
]->size
/ (4 * sizeof(float));
96 data
= (const float (*)[4])pipe_buffer_map(screen
,
98 PIPE_BUFFER_USAGE_CPU_READ
);
100 ret
= PIPE_ERROR_OUT_OF_MEMORY
;
104 for (i
= 0; i
< count
; i
++) {
105 ret
= emit_const( svga
, unit
, offset
+ i
, data
[i
] );
112 pipe_buffer_unmap(screen
, svga
->curr
.cb
[unit
]);
117 static int emit_fs_consts( struct svga_context
*svga
,
120 const struct svga_shader_result
*result
= svga
->state
.hw_draw
.fs
;
121 const struct svga_fs_compile_key
*key
= &result
->key
.fkey
;
124 ret
= emit_consts( svga
, 0, PIPE_SHADER_FRAGMENT
);
128 /* The internally generated fragment shader for xor blending
129 * doesn't have a 'result' struct. It should be fixed to avoid
130 * this special case, but work around it with a NULL check:
132 if (result
!= NULL
&&
133 key
->num_unnormalized_coords
)
135 unsigned offset
= result
->shader
->info
.file_max
[TGSI_FILE_CONSTANT
] + 1;
138 for (i
= 0; i
< key
->num_textures
; i
++) {
139 if (key
->tex
[i
].unnormalized
) {
140 struct pipe_texture
*tex
= svga
->curr
.texture
[i
];
143 data
[0] = 1.0 / (float)tex
->width0
;
144 data
[1] = 1.0 / (float)tex
->height0
;
148 ret
= emit_const( svga
,
149 PIPE_SHADER_FRAGMENT
,
150 key
->tex
[i
].width_height_idx
+ offset
,
157 offset
+= key
->num_unnormalized_coords
;
164 struct svga_tracked_state svga_hw_fs_parameters
=
167 (SVGA_NEW_FS_CONST_BUFFER
|
169 SVGA_NEW_TEXTURE_BINDING
),
173 /***********************************************************************
176 static int emit_vs_consts( struct svga_context
*svga
,
179 const struct svga_shader_result
*result
= svga
->state
.hw_draw
.vs
;
180 const struct svga_vs_compile_key
*key
= &result
->key
.vkey
;
184 /* SVGA_NEW_VS_RESULT
189 /* SVGA_NEW_VS_CONST_BUFFER
191 ret
= emit_consts( svga
, 0, PIPE_SHADER_VERTEX
);
195 offset
= result
->shader
->info
.file_max
[TGSI_FILE_CONSTANT
] + 1;
197 /* SVGA_NEW_VS_RESULT
199 if (key
->need_prescale
) {
200 ret
= emit_const( svga
, PIPE_SHADER_VERTEX
, offset
++,
201 svga
->state
.hw_clear
.prescale
.scale
);
205 ret
= emit_const( svga
, PIPE_SHADER_VERTEX
, offset
++,
206 svga
->state
.hw_clear
.prescale
.translate
);
211 /* SVGA_NEW_ZERO_STRIDE
213 if (key
->zero_stride_vertex_elements
) {
214 unsigned i
, curr_zero_stride
= 0;
215 for (i
= 0; i
< PIPE_MAX_ATTRIBS
; ++i
) {
216 if (key
->zero_stride_vertex_elements
& (1 << i
)) {
217 ret
= emit_const( svga
, PIPE_SHADER_VERTEX
, offset
++,
218 svga
->curr
.zero_stride_constants
+
219 4 * curr_zero_stride
);
231 struct svga_tracked_state svga_hw_vs_parameters
=
235 SVGA_NEW_VS_CONST_BUFFER
|
236 SVGA_NEW_ZERO_STRIDE
|