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 static boolean
r300_draw_range_elements(struct pipe_context
* pipe
,
26 struct pipe_buffer
* indexBuffer
,
34 struct r300_context
* r300
= r300_context(pipe
);
37 if (r300
->dirty_state
) {
38 r300_emit_dirty_state(r300
);
41 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
42 void* buf
= pipe_buffer_map(pipe
->screen
,
43 r300
->vertex_buffers
[i
].buffer
,
44 PIPE_BUFFER_USAGE_CPU_READ
);
45 draw_set_mapped_vertex_buffer(r300
->draw
, i
, buf
);
49 void* indices
= pipe_buffer_map(pipe
->screen
, indexBuffer
,
50 PIPE_BUFFER_USAGE_CPU_READ
);
51 draw_set_mapped_element_buffer_range(r300
->draw
, indexSize
,
52 minIndex
, maxIndex
, indices
);
54 draw_set_mapped_element_buffer(r300
->draw
, 0, NULL
);
57 draw_set_mapped_constant_buffer(r300
->draw
,
58 r300
->shader_constants
[PIPE_SHADER_VERTEX
].constants
,
59 r300
->shader_constants
[PIPE_SHADER_VERTEX
].user_count
*
62 draw_arrays(r300
->draw
, mode
, start
, count
);
64 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
65 pipe_buffer_unmap(pipe
->screen
, r300
->vertex_buffers
[i
].buffer
);
66 draw_set_mapped_vertex_buffer(r300
->draw
, i
, NULL
);
70 pipe_buffer_unmap(pipe
->screen
, indexBuffer
);
71 draw_set_mapped_element_buffer_range(r300
->draw
, 0, start
,
72 start
+ count
- 1, NULL
);
78 static boolean
r300_draw_elements(struct pipe_context
* pipe
,
79 struct pipe_buffer
* indexBuffer
,
80 unsigned indexSize
, unsigned mode
,
81 unsigned start
, unsigned count
)
83 return r300_draw_range_elements(pipe
, indexBuffer
, indexSize
, 0, ~0,
87 static boolean
r300_draw_arrays(struct pipe_context
* pipe
, unsigned mode
,
88 unsigned start
, unsigned count
)
90 return r300_draw_elements(pipe
, NULL
, 0, mode
, start
, count
);
93 static void r300_destroy_context(struct pipe_context
* context
) {
94 struct r300_context
* r300
= r300_context(context
);
96 draw_destroy(r300
->draw
);
98 FREE(r300
->blend_color_state
);
100 FREE(r300
->scissor_state
);
101 FREE(r300
->viewport_state
);
105 struct pipe_context
* r300_create_context(struct pipe_screen
* screen
,
106 struct r300_winsys
* r300_winsys
)
108 struct r300_context
* r300
= CALLOC_STRUCT(r300_context
);
113 /* XXX this could be refactored now? */
114 r300
->winsys
= r300_winsys
;
116 r300
->context
.winsys
= (struct pipe_winsys
*)r300_winsys
;
117 r300
->context
.screen
= r300_screen(screen
);
119 r300
->context
.destroy
= r300_destroy_context
;
121 r300
->context
.clear
= r300_clear
;
123 r300
->context
.draw_arrays
= r300_draw_arrays
;
124 r300
->context
.draw_elements
= r300_draw_elements
;
125 r300
->context
.draw_range_elements
= r300_draw_range_elements
;
127 r300
->draw
= draw_create();
128 draw_set_rasterize_stage(r300
->draw
, r300_draw_swtcl_stage(r300
));
130 r300
->blend_color_state
= CALLOC_STRUCT(r300_blend_color_state
);
131 r300
->rs_block
= CALLOC_STRUCT(r300_rs_block
);
132 r300
->scissor_state
= CALLOC_STRUCT(r300_scissor_state
);
133 r300
->viewport_state
= CALLOC_STRUCT(r300_viewport_state
);
135 r300_init_flush_functions(r300
);
137 r300_init_query_functions(r300
);
139 r300_init_surface_functions(r300
);
141 r300_init_state_functions(r300
);
143 r300_emit_invariant_state(r300
);
144 r300
->dirty_state
= R300_NEW_KITCHEN_SINK
;
147 return &r300
->context
;