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 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
38 void* buf
= pipe_buffer_map(pipe
->screen
,
39 r300
->vertex_buffers
[i
].buffer
,
40 PIPE_BUFFER_USAGE_CPU_READ
);
41 draw_set_mapped_vertex_buffer(r300
->draw
, i
, buf
);
45 void* indices
= pipe_buffer_map(pipe
->screen
, indexBuffer
,
46 PIPE_BUFFER_USAGE_CPU_READ
);
47 draw_set_mapped_element_buffer_range(r300
->draw
, indexSize
,
48 minIndex
, maxIndex
, indices
);
50 draw_set_mapped_element_buffer(r300
->draw
, 0, NULL
);
53 draw_set_mapped_constant_buffer(r300
->draw
,
54 r300
->shader_constants
[PIPE_SHADER_VERTEX
].constants
,
55 r300
->shader_constants
[PIPE_SHADER_VERTEX
].user_count
*
58 draw_arrays(r300
->draw
, mode
, start
, count
);
60 for (i
= 0; i
< r300
->vertex_buffer_count
; i
++) {
61 pipe_buffer_unmap(pipe
->screen
, r300
->vertex_buffers
[i
].buffer
);
62 draw_set_mapped_vertex_buffer(r300
->draw
, i
, NULL
);
66 pipe_buffer_unmap(pipe
->screen
, indexBuffer
);
67 draw_set_mapped_element_buffer_range(r300
->draw
, 0, start
,
68 start
+ count
- 1, NULL
);
74 static boolean
r300_draw_elements(struct pipe_context
* pipe
,
75 struct pipe_buffer
* indexBuffer
,
76 unsigned indexSize
, unsigned mode
,
77 unsigned start
, unsigned count
)
79 return r300_draw_range_elements(pipe
, indexBuffer
, indexSize
, 0, ~0,
83 static boolean
r300_draw_arrays(struct pipe_context
* pipe
, unsigned mode
,
84 unsigned start
, unsigned count
)
86 return r300_draw_elements(pipe
, NULL
, 0, mode
, start
, count
);
89 static void r300_destroy_context(struct pipe_context
* context
) {
90 struct r300_context
* r300
= r300_context(context
);
92 draw_destroy(r300
->draw
);
94 FREE(r300
->blend_color_state
);
96 FREE(r300
->scissor_state
);
97 FREE(r300
->viewport_state
);
102 r300_is_texture_referenced( struct pipe_context
*pipe
,
103 struct pipe_texture
*texture
,
104 unsigned face
, unsigned level
)
110 return PIPE_REFERENCED_FOR_READ
| PIPE_REFERENCED_FOR_WRITE
;
114 r300_is_buffer_referenced( struct pipe_context
*pipe
,
115 struct pipe_buffer
*buf
)
121 return PIPE_REFERENCED_FOR_READ
| PIPE_REFERENCED_FOR_WRITE
;
124 struct pipe_context
* r300_create_context(struct pipe_screen
* screen
,
125 struct r300_winsys
* r300_winsys
)
127 struct r300_context
* r300
= CALLOC_STRUCT(r300_context
);
132 r300
->winsys
= r300_winsys
;
134 r300
->context
.winsys
= (struct pipe_winsys
*)r300_winsys
;
135 r300
->context
.screen
= r300_screen(screen
);
137 r300
->context
.destroy
= r300_destroy_context
;
139 r300
->context
.clear
= r300_clear
;
141 r300
->context
.draw_arrays
= r300_draw_arrays
;
142 r300
->context
.draw_elements
= r300_draw_elements
;
143 r300
->context
.draw_range_elements
= r300_draw_range_elements
;
145 r300
->context
.is_texture_referenced
= r300_is_texture_referenced
;
146 r300
->context
.is_buffer_referenced
= r300_is_buffer_referenced
;
148 /* Create a Draw. This is used for vert collation and SW TCL. */
149 r300
->draw
= draw_create();
150 /* Enable our renderer. */
151 draw_set_rasterize_stage(r300
->draw
, r300_draw_stage(r300
));
152 /* Disable Draw's clipping if TCL is present. */
153 draw_set_driver_clipping(r300
->draw
, r300_screen(screen
)->caps
->has_tcl
);
154 /* Force Draw to never do viewport transform, since (again) we can do
155 * transform in hardware, always. */
156 draw_set_viewport_state(r300
->draw
, &r300_viewport_identity
);
158 r300
->blend_color_state
= CALLOC_STRUCT(r300_blend_color_state
);
159 r300
->rs_block
= CALLOC_STRUCT(r300_rs_block
);
160 r300
->scissor_state
= CALLOC_STRUCT(r300_scissor_state
);
161 r300
->viewport_state
= CALLOC_STRUCT(r300_viewport_state
);
163 r300_init_flush_functions(r300
);
165 r300_init_query_functions(r300
);
167 r300_init_surface_functions(r300
);
169 r300_init_state_functions(r300
);
171 r300_emit_invariant_state(r300
);
172 r300
->dirty_state
= R300_NEW_KITCHEN_SINK
;
175 return &r300
->context
;