1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "i915_context.h"
29 #include "i915_state.h"
30 #include "i915_screen.h"
31 #include "i915_batch.h"
33 #include "draw/draw_context.h"
34 #include "pipe/p_defines.h"
35 #include "util/u_inlines.h"
36 #include "util/u_memory.h"
37 #include "pipe/p_screen.h"
46 i915_draw_range_elements(struct pipe_context
*pipe
,
47 struct pipe_buffer
*indexBuffer
,
51 unsigned prim
, unsigned start
, unsigned count
)
53 struct i915_context
*i915
= i915_context(pipe
);
54 struct draw_context
*draw
= i915
->draw
;
58 i915_update_derived(i915
);
63 for (i
= 0; i
< i915
->num_vertex_buffers
; i
++) {
64 void *buf
= pipe_buffer_map(pipe
->screen
, i915
->vertex_buffer
[i
].buffer
,
65 PIPE_BUFFER_USAGE_CPU_READ
);
66 draw_set_mapped_vertex_buffer(draw
, i
, buf
);
70 * Map index buffer, if present
73 void *mapped_indexes
= pipe_buffer_map(pipe
->screen
, indexBuffer
,
74 PIPE_BUFFER_USAGE_CPU_READ
);
75 draw_set_mapped_element_buffer_range(draw
, indexSize
,
80 draw_set_mapped_element_buffer(draw
, 0, NULL
);
84 draw_set_mapped_constant_buffer(draw
, PIPE_SHADER_VERTEX
, 0,
85 i915
->current
.constants
[PIPE_SHADER_VERTEX
],
86 (i915
->current
.num_user_constants
[PIPE_SHADER_VERTEX
] *
92 draw_arrays(i915
->draw
, prim
, start
, count
);
95 * unmap vertex/index buffers
97 for (i
= 0; i
< i915
->num_vertex_buffers
; i
++) {
98 pipe_buffer_unmap(pipe
->screen
, i915
->vertex_buffer
[i
].buffer
);
99 draw_set_mapped_vertex_buffer(draw
, i
, NULL
);
103 pipe_buffer_unmap(pipe
->screen
, indexBuffer
);
104 draw_set_mapped_element_buffer_range(draw
, 0, start
, start
+ count
- 1, NULL
);
109 i915_draw_elements(struct pipe_context
*pipe
,
110 struct pipe_buffer
*indexBuffer
,
112 unsigned prim
, unsigned start
, unsigned count
)
114 i915_draw_range_elements(pipe
, indexBuffer
,
121 i915_draw_arrays(struct pipe_context
*pipe
,
122 unsigned prim
, unsigned start
, unsigned count
)
124 i915_draw_elements(pipe
, NULL
, 0, prim
, start
, count
);
129 * Is referenced functions
134 i915_is_texture_referenced(struct pipe_context
*pipe
,
135 struct pipe_texture
*texture
,
136 unsigned face
, unsigned level
)
139 * FIXME: Return the corrent result. We can't alays return referenced
140 * since it causes a double flush within the vbo module.
143 return PIPE_REFERENCED_FOR_READ
| PIPE_REFERENCED_FOR_WRITE
;
150 i915_is_buffer_referenced(struct pipe_context
*pipe
,
151 struct pipe_buffer
*buf
)
154 * Since we never expose hardware buffers to the state tracker
155 * they can never be referenced, so this isn't a lie
162 * Generic context functions
166 static void i915_destroy(struct pipe_context
*pipe
)
168 struct i915_context
*i915
= i915_context(pipe
);
171 draw_destroy(i915
->draw
);
174 i915
->iws
->batchbuffer_destroy(i915
->batch
);
176 /* unbind framebuffer */
177 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
; i
++) {
178 pipe_surface_reference(&i915
->framebuffer
.cbufs
[i
], NULL
);
180 pipe_surface_reference(&i915
->framebuffer
.zsbuf
, NULL
);
185 struct pipe_context
*
186 i915_create_context(struct pipe_screen
*screen
, void *priv
)
188 struct i915_context
*i915
;
190 i915
= CALLOC_STRUCT(i915_context
);
194 i915
->iws
= i915_screen(screen
)->iws
;
195 i915
->base
.winsys
= NULL
;
196 i915
->base
.screen
= screen
;
197 i915
->base
.priv
= priv
;
199 i915
->base
.destroy
= i915_destroy
;
201 i915
->base
.clear
= i915_clear
;
203 i915
->base
.draw_arrays
= i915_draw_arrays
;
204 i915
->base
.draw_elements
= i915_draw_elements
;
205 i915
->base
.draw_range_elements
= i915_draw_range_elements
;
207 i915
->base
.is_texture_referenced
= i915_is_texture_referenced
;
208 i915
->base
.is_buffer_referenced
= i915_is_buffer_referenced
;
211 * Create drawing context and plug our rendering stage into it.
213 i915
->draw
= draw_create(&i915
->base
);
215 if (!debug_get_bool_option("I915_NO_VBUF", FALSE
)) {
216 draw_set_rasterize_stage(i915
->draw
, i915_draw_vbuf_stage(i915
));
218 draw_set_rasterize_stage(i915
->draw
, i915_draw_render_stage(i915
));
221 i915_init_surface_functions(i915
);
222 i915_init_state_functions(i915
);
223 i915_init_flush_functions(i915
);
225 draw_install_aaline_stage(i915
->draw
, &i915
->base
);
226 draw_install_aapoint_stage(i915
->draw
, &i915
->base
);
229 i915
->hardware_dirty
= ~0;
231 /* Batch stream debugging is a bit hacked up at the moment:
233 i915
->batch
= i915
->iws
->batchbuffer_create(i915
->iws
);