1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
/*
* Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include "r300_context.h"
#include "r300_flush.h"
#include "r300_state_invariant.h"
static boolean r300_draw_range_elements(struct pipe_context* pipe,
struct pipe_buffer* indexBuffer,
unsigned indexSize,
unsigned minIndex,
unsigned maxIndex,
unsigned mode,
unsigned start,
unsigned count)
{
struct r300_context* r300 = r300_context(pipe);
int i;
for (i = 0; i < r300->vertex_buffer_count; i++) {
void* buf = pipe_buffer_map(pipe->screen,
r300->vertex_buffers[i].buffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_vertex_buffer(r300->draw, i, buf);
}
if (indexBuffer) {
void* indices = pipe_buffer_map(pipe->screen, indexBuffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_element_buffer_range(r300->draw, indexSize,
minIndex, maxIndex, indices);
} else {
draw_set_mapped_element_buffer(r300->draw, 0, NULL);
}
draw_set_mapped_constant_buffer(r300->draw,
r300->shader_constants[PIPE_SHADER_VERTEX].constants,
r300->shader_constants[PIPE_SHADER_VERTEX].count *
(sizeof(float) * 4));
draw_arrays(r300->draw, mode, start, count);
for (i = 0; i < r300->vertex_buffer_count; i++) {
pipe_buffer_unmap(pipe->screen, r300->vertex_buffers[i].buffer);
draw_set_mapped_vertex_buffer(r300->draw, i, NULL);
}
if (indexBuffer) {
pipe_buffer_unmap(pipe->screen, indexBuffer);
draw_set_mapped_element_buffer_range(r300->draw, 0, start,
start + count - 1, NULL);
}
return TRUE;
}
static boolean r300_draw_elements(struct pipe_context* pipe,
struct pipe_buffer* indexBuffer,
unsigned indexSize, unsigned mode,
unsigned start, unsigned count)
{
return r300_draw_range_elements(pipe, indexBuffer, indexSize, 0, ~0,
mode, start, count);
}
static boolean r300_draw_arrays(struct pipe_context* pipe, unsigned mode,
unsigned start, unsigned count)
{
return r300_draw_elements(pipe, NULL, 0, mode, start, count);
}
static void r300_destroy_context(struct pipe_context* context) {
struct r300_context* r300 = r300_context(context);
struct r300_query* query, * temp;
draw_destroy(r300->draw);
/* Free the OQ BO. */
context->screen->buffer_destroy(r300->oqbo);
/* If there are any queries pending or not destroyed, remove them now. */
if (r300->query_list) {
foreach_s(query, temp, r300->query_list) {
remove_from_list(query);
FREE(query);
}
}
FREE(r300->blend_color_state);
FREE(r300->rs_block);
FREE(r300->scissor_state);
FREE(r300->viewport_state);
FREE(r300);
}
static unsigned int
r300_is_texture_referenced( struct pipe_context *pipe,
struct pipe_texture *texture,
unsigned face, unsigned level)
{
/**
* FIXME: Optimize.
*/
return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
}
static unsigned int
r300_is_buffer_referenced( struct pipe_context *pipe,
struct pipe_buffer *buf)
{
/**
* FIXME: Optimize.
*/
return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
}
struct pipe_context* r300_create_context(struct pipe_screen* screen,
struct r300_winsys* r300_winsys)
{
struct r300_context* r300 = CALLOC_STRUCT(r300_context);
if (!r300)
return NULL;
r300->winsys = r300_winsys;
r300->context.winsys = (struct pipe_winsys*)r300_winsys;
r300->context.screen = r300_screen(screen);
r300_init_debug(r300);
r300->context.destroy = r300_destroy_context;
r300->context.clear = r300_clear;
r300->context.draw_arrays = r300_draw_arrays;
r300->context.draw_elements = r300_draw_elements;
r300->context.draw_range_elements = r300_draw_range_elements;
r300->context.is_texture_referenced = r300_is_texture_referenced;
r300->context.is_buffer_referenced = r300_is_buffer_referenced;
r300->blend_color_state = CALLOC_STRUCT(r300_blend_color_state);
r300->rs_block = CALLOC_STRUCT(r300_rs_block);
r300->scissor_state = CALLOC_STRUCT(r300_scissor_state);
r300->viewport_state = CALLOC_STRUCT(r300_viewport_state);
/* Create a Draw. This is used for vert collation and SW TCL. */
r300->draw = draw_create();
/* Enable our renderer. */
draw_set_rasterize_stage(r300->draw, r300_draw_stage(r300));
/* Disable Draw's clipping if TCL is present. */
draw_set_driver_clipping(r300->draw, r300_screen(screen)->caps->has_tcl);
/* Force Draw to never do viewport transform, since (again) we can do
* transform in hardware, always. */
draw_set_viewport_state(r300->draw, &r300_viewport_identity);
/* Open up the OQ BO. */
r300->oqbo = screen->buffer_create(screen, 4096,
PIPE_BUFFER_USAGE_VERTEX, 4096);
r300_init_flush_functions(r300);
r300_init_query_functions(r300);
r300_init_surface_functions(r300);
r300_init_state_functions(r300);
r300_emit_invariant_state(r300);
r300->dirty_state = R300_NEW_KITCHEN_SINK;
r300->dirty_hw++;
return &r300->context;
}
|
