2 * Copyright 2010 Red Hat Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
23 * Authors: Dave Airlie <airlied@redhat.com>
25 #include "translate/translate_cache.h"
26 #include "translate/translate.h"
27 #include <pipebuffer/pb_buffer.h>
28 #include <util/u_index_modify.h>
29 #include "r600_pipe.h"
31 void r600_begin_vertex_translate(struct r600_pipe_context
*rctx
)
33 struct pipe_context
*pipe
= &rctx
->context
;
34 struct translate_key key
= {0};
35 struct translate_element
*te
;
36 unsigned tr_elem_index
[PIPE_MAX_ATTRIBS
] = {0};
38 struct r600_vertex_element
*ve
= rctx
->vertex_elements
;
39 boolean vb_translated
[PIPE_MAX_ATTRIBS
] = {0};
40 void *vb_map
[PIPE_MAX_ATTRIBS
] = {0}, *out_map
;
41 struct pipe_transfer
*vb_transfer
[PIPE_MAX_ATTRIBS
] = {0}, *out_transfer
;
42 struct pipe_resource
*out_buffer
;
43 unsigned i
, num_verts
;
45 /* Initialize the translate key, i.e. the recipe how vertices should be
47 for (i
= 0; i
< ve
->count
; i
++) {
48 struct pipe_vertex_buffer
*vb
=
49 &rctx
->vertex_buffer
[ve
->elements
[i
].vertex_buffer_index
];
50 enum pipe_format output_format
= ve
->hw_format
[i
];
51 unsigned output_format_size
= ve
->hw_format_size
[i
];
53 /* Check for support. */
54 if (ve
->elements
[i
].src_format
== ve
->hw_format
[i
] &&
55 (vb
->buffer_offset
+ ve
->elements
[i
].src_offset
) % 4 == 0 &&
56 vb
->stride
% 4 == 0) {
60 /* Workaround for translate: output floats instead of halfs. */
61 switch (output_format
) {
62 case PIPE_FORMAT_R16_FLOAT
:
63 output_format
= PIPE_FORMAT_R32_FLOAT
;
64 output_format_size
= 4;
66 case PIPE_FORMAT_R16G16_FLOAT
:
67 output_format
= PIPE_FORMAT_R32G32_FLOAT
;
68 output_format_size
= 8;
70 case PIPE_FORMAT_R16G16B16_FLOAT
:
71 output_format
= PIPE_FORMAT_R32G32B32_FLOAT
;
72 output_format_size
= 12;
74 case PIPE_FORMAT_R16G16B16A16_FLOAT
:
75 output_format
= PIPE_FORMAT_R32G32B32A32_FLOAT
;
76 output_format_size
= 16;
81 /* Add this vertex element. */
82 te
= &key
.element
[key
.nr_elements
];
84 te->instance_divisor;*/
85 te
->input_buffer
= ve
->elements
[i
].vertex_buffer_index
;
86 te
->input_format
= ve
->elements
[i
].src_format
;
87 te
->input_offset
= vb
->buffer_offset
+ ve
->elements
[i
].src_offset
;
88 te
->output_format
= output_format
;
89 te
->output_offset
= key
.output_stride
;
91 key
.output_stride
+= output_format_size
;
92 vb_translated
[ve
->elements
[i
].vertex_buffer_index
] = TRUE
;
93 tr_elem_index
[i
] = key
.nr_elements
;
97 /* Get a translate object. */
98 tr
= translate_cache_find(rctx
->tran
.translate_cache
, &key
);
100 /* Map buffers we want to translate. */
101 for (i
= 0; i
< rctx
->nvertex_buffer
; i
++) {
102 if (vb_translated
[i
]) {
103 struct pipe_vertex_buffer
*vb
= &rctx
->vertex_buffer
[i
];
105 vb_map
[i
] = pipe_buffer_map(pipe
, vb
->buffer
,
106 PIPE_TRANSFER_READ
, &vb_transfer
[i
]);
108 tr
->set_buffer(tr
, i
, vb_map
[i
], vb
->stride
, vb
->max_index
);
112 /* Create and map the output buffer. */
113 num_verts
= rctx
->vb_max_index
+ 1;
115 out_buffer
= pipe_buffer_create(&rctx
->screen
->screen
,
116 PIPE_BIND_VERTEX_BUFFER
,
117 key
.output_stride
* num_verts
);
119 out_map
= pipe_buffer_map(pipe
, out_buffer
, PIPE_TRANSFER_WRITE
,
123 tr
->run(tr
, 0, num_verts
, 0, out_map
);
125 /* Unmap all buffers. */
126 for (i
= 0; i
< rctx
->nvertex_buffer
; i
++) {
127 if (vb_translated
[i
]) {
128 pipe_buffer_unmap(pipe
, rctx
->vertex_buffer
[i
].buffer
,
133 pipe_buffer_unmap(pipe
, out_buffer
, out_transfer
);
135 /* Setup the new vertex buffer in the first free slot. */
136 for (i
= 0; i
< PIPE_MAX_ATTRIBS
; i
++) {
137 struct pipe_vertex_buffer
*vb
= &rctx
->vertex_buffer
[i
];
140 pipe_resource_reference(&vb
->buffer
, out_buffer
);
141 vb
->buffer_offset
= 0;
142 vb
->max_index
= num_verts
- 1;
143 vb
->stride
= key
.output_stride
;
144 rctx
->tran
.vb_slot
= i
;
149 /* Save and replace vertex elements. */
151 struct pipe_vertex_element new_velems
[PIPE_MAX_ATTRIBS
];
153 rctx
->tran
.saved_velems
= rctx
->vertex_elements
;
155 for (i
= 0; i
< ve
->count
; i
++) {
156 if (vb_translated
[ve
->elements
[i
].vertex_buffer_index
]) {
157 te
= &key
.element
[tr_elem_index
[i
]];
158 new_velems
[i
].instance_divisor
= ve
->elements
[i
].instance_divisor
;
159 new_velems
[i
].src_format
= te
->output_format
;
160 new_velems
[i
].src_offset
= te
->output_offset
;
161 new_velems
[i
].vertex_buffer_index
= rctx
->tran
.vb_slot
;
163 memcpy(&new_velems
[i
], &ve
->elements
[i
],
164 sizeof(struct pipe_vertex_element
));
168 rctx
->tran
.new_velems
=
169 pipe
->create_vertex_elements_state(pipe
, ve
->count
, new_velems
);
170 pipe
->bind_vertex_elements_state(pipe
, rctx
->tran
.new_velems
);
173 pipe_resource_reference(&out_buffer
, NULL
);
176 void r600_end_vertex_translate(struct r600_pipe_context
*rctx
)
178 struct pipe_context
*pipe
= &rctx
->context
;
180 /* Restore vertex elements. */
181 pipe
->bind_vertex_elements_state(pipe
, rctx
->tran
.saved_velems
);
182 pipe
->delete_vertex_elements_state(pipe
, rctx
->tran
.new_velems
);
184 /* Delete the now-unused VBO. */
185 pipe_resource_reference(&rctx
->vertex_buffer
[rctx
->tran
.vb_slot
].buffer
,
189 void r600_translate_index_buffer(struct r600_pipe_context
*r600
,
190 struct pipe_resource
**index_buffer
,
191 unsigned *index_size
,
192 unsigned *start
, unsigned count
)
194 switch (*index_size
) {
196 util_shorten_ubyte_elts(&r600
->context
, index_buffer
, 0, *start
, count
);