2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
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 #include "r300_context.h"
25 #include "r300_flush.h"
26 #include "r300_state_invariant.h"
28 static boolean
r300_draw_range_elements(struct pipe_context
* pipe
,
29 struct pipe_buffer
* indexBuffer
,
37 struct r300_context
* r300
= r300_context(pipe
);
40 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
41 void* buf
= pipe_buffer_map(pipe
->screen
,
42 r300
->vertex_buffers
[i
].buffer
,
43 PIPE_BUFFER_USAGE_CPU_READ
);
44 draw_set_mapped_vertex_buffer(r300
->draw
, i
, buf
);
48 void* indices
= pipe_buffer_map(pipe
->screen
, indexBuffer
,
49 PIPE_BUFFER_USAGE_CPU_READ
);
50 draw_set_mapped_element_buffer_range(r300
->draw
, indexSize
,
51 minIndex
, maxIndex
, indices
);
53 draw_set_mapped_element_buffer(r300
->draw
, 0, NULL
);
56 draw_set_mapped_constant_buffer(r300
->draw
,
57 r300
->shader_constants
[PIPE_SHADER_VERTEX
].constants
,
58 r300
->shader_constants
[PIPE_SHADER_VERTEX
].count
*
61 draw_arrays(r300
->draw
, mode
, start
, count
);
63 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
64 pipe_buffer_unmap(pipe
->screen
, r300
->vertex_buffers
[i
].buffer
);
65 draw_set_mapped_vertex_buffer(r300
->draw
, i
, NULL
);
69 pipe_buffer_unmap(pipe
->screen
, indexBuffer
);
70 draw_set_mapped_element_buffer_range(r300
->draw
, 0, start
,
71 start
+ count
- 1, NULL
);
77 static boolean
r300_draw_elements(struct pipe_context
* pipe
,
78 struct pipe_buffer
* indexBuffer
,
79 unsigned indexSize
, unsigned mode
,
80 unsigned start
, unsigned count
)
82 return r300_draw_range_elements(pipe
, indexBuffer
, indexSize
, 0, ~0,
86 static boolean
r300_draw_arrays(struct pipe_context
* pipe
, unsigned mode
,
87 unsigned start
, unsigned count
)
89 return r300_draw_elements(pipe
, NULL
, 0, mode
, start
, count
);
92 static void r300_destroy_context(struct pipe_context
* context
) {
93 struct r300_context
* r300
= r300_context(context
);
94 struct r300_query
* query
, * temp
;
96 draw_destroy(r300
->draw
);
99 context
->screen
->buffer_destroy(r300
->oqbo
);
101 /* If there are any queries pending or not destroyed, remove them now. */
102 if (r300
->query_list
) {
103 foreach_s(query
, temp
, r300
->query_list
) {
104 remove_from_list(query
);
109 FREE(r300
->blend_color_state
);
110 FREE(r300
->rs_block
);
111 FREE(r300
->scissor_state
);
112 FREE(r300
->viewport_state
);
117 r300_is_texture_referenced( struct pipe_context
*pipe
,
118 struct pipe_texture
*texture
,
119 unsigned face
, unsigned level
)
125 return PIPE_REFERENCED_FOR_READ
| PIPE_REFERENCED_FOR_WRITE
;
129 r300_is_buffer_referenced( struct pipe_context
*pipe
,
130 struct pipe_buffer
*buf
)
136 return PIPE_REFERENCED_FOR_READ
| PIPE_REFERENCED_FOR_WRITE
;
139 struct pipe_context
* r300_create_context(struct pipe_screen
* screen
,
140 struct r300_winsys
* r300_winsys
)
142 struct r300_context
* r300
= CALLOC_STRUCT(r300_context
);
147 r300
->winsys
= r300_winsys
;
149 r300
->context
.winsys
= (struct pipe_winsys
*)r300_winsys
;
150 r300
->context
.screen
= r300_screen(screen
);
152 r300_init_debug(r300
);
154 r300
->context
.destroy
= r300_destroy_context
;
156 r300
->context
.clear
= r300_clear
;
158 r300
->context
.draw_arrays
= r300_draw_arrays
;
159 r300
->context
.draw_elements
= r300_draw_elements
;
160 r300
->context
.draw_range_elements
= r300_draw_range_elements
;
162 r300
->context
.is_texture_referenced
= r300_is_texture_referenced
;
163 r300
->context
.is_buffer_referenced
= r300_is_buffer_referenced
;
165 r300
->blend_color_state
= CALLOC_STRUCT(r300_blend_color_state
);
166 r300
->rs_block
= CALLOC_STRUCT(r300_rs_block
);
167 r300
->scissor_state
= CALLOC_STRUCT(r300_scissor_state
);
168 r300
->viewport_state
= CALLOC_STRUCT(r300_viewport_state
);
170 /* Create a Draw. This is used for vert collation and SW TCL. */
171 r300
->draw
= draw_create();
172 /* Enable our renderer. */
173 draw_set_rasterize_stage(r300
->draw
, r300_draw_stage(r300
));
174 /* Disable Draw's clipping if TCL is present. */
175 draw_set_driver_clipping(r300
->draw
, r300_screen(screen
)->caps
->has_tcl
);
176 /* Force Draw to never do viewport transform, since (again) we can do
177 * transform in hardware, always. */
178 draw_set_viewport_state(r300
->draw
, &r300_viewport_identity
);
180 /* Open up the OQ BO. */
181 r300
->oqbo
= screen
->buffer_create(screen
, 4096,
182 PIPE_BUFFER_USAGE_VERTEX
, 4096);
184 r300_init_flush_functions(r300
);
186 r300_init_query_functions(r300
);
188 r300_init_surface_functions(r300
);
190 r300_init_state_functions(r300
);
192 r300_emit_invariant_state(r300
);
193 r300
->dirty_state
= R300_NEW_KITCHEN_SINK
;
196 return &r300
->context
;