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_surface.h"
32 #include "i915_batch.h"
33 #include "i915_resource.h"
35 #include "draw/draw_context.h"
36 #include "pipe/p_defines.h"
37 #include "util/u_inlines.h"
38 #include "util/u_memory.h"
39 #include "pipe/p_screen.h"
48 i915_draw_range_elements(struct pipe_context
*pipe
,
49 struct pipe_resource
*indexBuffer
,
54 unsigned prim
, unsigned start
, unsigned count
)
56 struct i915_context
*i915
= i915_context(pipe
);
57 struct draw_context
*draw
= i915
->draw
;
61 i915_update_derived(i915
);
66 for (i
= 0; i
< i915
->num_vertex_buffers
; i
++) {
67 void *buf
= i915_buffer(i915
->vertex_buffer
[i
].buffer
)->data
;
68 draw_set_mapped_vertex_buffer(draw
, i
, buf
);
72 * Map index buffer, if present
75 void *mapped_indexes
= i915_buffer(indexBuffer
)->data
;
76 draw_set_mapped_element_buffer_range(draw
, indexSize
, indexBias
,
81 draw_set_mapped_element_buffer(draw
, 0, 0, NULL
);
85 draw_set_mapped_constant_buffer(draw
, PIPE_SHADER_VERTEX
, 0,
86 i915
->current
.constants
[PIPE_SHADER_VERTEX
],
87 (i915
->current
.num_user_constants
[PIPE_SHADER_VERTEX
] *
93 draw_arrays(i915
->draw
, prim
, start
, count
);
96 * unmap vertex/index buffers
98 for (i
= 0; i
< i915
->num_vertex_buffers
; i
++) {
99 draw_set_mapped_vertex_buffer(draw
, i
, NULL
);
103 draw_set_mapped_element_buffer(draw
, 0, 0, NULL
);
108 i915_draw_elements(struct pipe_context
*pipe
,
109 struct pipe_resource
*indexBuffer
,
110 unsigned indexSize
, int indexBias
,
111 unsigned prim
, unsigned start
, unsigned count
)
113 i915_draw_range_elements(pipe
, indexBuffer
,
114 indexSize
, indexBias
,
120 i915_draw_arrays(struct pipe_context
*pipe
,
121 unsigned prim
, unsigned start
, unsigned count
)
123 i915_draw_elements(pipe
, NULL
, 0, 0, prim
, start
, count
);
130 * Generic context functions
134 static void i915_destroy(struct pipe_context
*pipe
)
136 struct i915_context
*i915
= i915_context(pipe
);
139 draw_destroy(i915
->draw
);
142 i915
->iws
->batchbuffer_destroy(i915
->batch
);
144 /* unbind framebuffer */
145 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
; i
++) {
146 pipe_surface_reference(&i915
->framebuffer
.cbufs
[i
], NULL
);
148 pipe_surface_reference(&i915
->framebuffer
.zsbuf
, NULL
);
153 struct pipe_context
*
154 i915_create_context(struct pipe_screen
*screen
, void *priv
)
156 struct i915_context
*i915
;
158 i915
= CALLOC_STRUCT(i915_context
);
162 i915
->iws
= i915_screen(screen
)->iws
;
163 i915
->base
.winsys
= NULL
;
164 i915
->base
.screen
= screen
;
165 i915
->base
.priv
= priv
;
167 i915
->base
.destroy
= i915_destroy
;
169 i915
->base
.clear
= i915_clear
;
171 i915
->base
.draw_arrays
= i915_draw_arrays
;
172 i915
->base
.draw_elements
= i915_draw_elements
;
173 i915
->base
.draw_range_elements
= i915_draw_range_elements
;
176 * Create drawing context and plug our rendering stage into it.
178 i915
->draw
= draw_create(&i915
->base
);
180 if (!debug_get_bool_option("I915_NO_VBUF", FALSE
)) {
181 draw_set_rasterize_stage(i915
->draw
, i915_draw_vbuf_stage(i915
));
183 draw_set_rasterize_stage(i915
->draw
, i915_draw_render_stage(i915
));
186 i915_init_surface_functions(i915
);
187 i915_init_state_functions(i915
);
188 i915_init_flush_functions(i915
);
189 i915_init_resource_functions(i915
);
191 draw_install_aaline_stage(i915
->draw
, &i915
->base
);
192 draw_install_aapoint_stage(i915
->draw
, &i915
->base
);
195 i915
->hardware_dirty
= ~0;
197 /* Batch stream debugging is a bit hacked up at the moment:
199 i915
->batch
= i915
->iws
->batchbuffer_create(i915
->iws
);