1 /**************************************************************************
2 *
3 * Copyright 2003 VMware, Inc.
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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 VMWARE 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.
25 *
26 **************************************************************************/
27
28 #include "i915_context.h"
29 #include "i915_state.h"
30 #include "i915_screen.h"
31 #include "i915_surface.h"
32 #include "i915_query.h"
33 #include "i915_batch.h"
34 #include "i915_resource.h"
35
36 #include "draw/draw_context.h"
37 #include "pipe/p_defines.h"
38 #include "util/u_inlines.h"
39 #include "util/u_memory.h"
40 #include "util/u_prim.h"
41 #include "util/u_upload_mgr.h"
42 #include "pipe/p_screen.h"
43
44
45 DEBUG_GET_ONCE_BOOL_OPTION(i915_no_vbuf, "I915_NO_VBUF", FALSE)
46
47
48 /*
49 * Draw functions
50 */
51
52
53 static void
i915_draw_vbo(struct pipe_context * pipe,const struct pipe_draw_info * info)54 i915_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
55 {
56 struct i915_context *i915 = i915_context(pipe);
57 struct draw_context *draw = i915->draw;
58 const void *mapped_indices = NULL;
59 unsigned i;
60
61 if (!u_trim_pipe_prim(info->mode, (unsigned*)&info->count))
62 return;
63
64 /*
65 * Ack vs contants here, helps ipers a lot.
66 */
67 i915->dirty &= ~I915_NEW_VS_CONSTANTS;
68
69 if (i915->dirty)
70 i915_update_derived(i915);
71
72 /*
73 * Map vertex buffers
74 */
75 for (i = 0; i < i915->nr_vertex_buffers; i++) {
76 const void *buf = i915->vertex_buffers[i].is_user_buffer ?
77 i915->vertex_buffers[i].buffer.user : NULL;
78 if (!buf)
79 buf = i915_buffer(i915->vertex_buffers[i].buffer.resource)->data;
80 draw_set_mapped_vertex_buffer(draw, i, buf, ~0);
81 }
82
83 /*
84 * Map index buffer, if present
85 */
86 if (info->index_size) {
87 mapped_indices = info->has_user_indices ? info->index.user : NULL;
88 if (!mapped_indices)
89 mapped_indices = i915_buffer(info->index.resource)->data;
90 draw_set_indexes(draw,
91 (ubyte *) mapped_indices,
92 info->index_size, ~0);
93 }
94
95 if (i915->constants[PIPE_SHADER_VERTEX])
96 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0,
97 i915_buffer(i915->constants[PIPE_SHADER_VERTEX])->data,
98 (i915->current.num_user_constants[PIPE_SHADER_VERTEX] *
99 4 * sizeof(float)));
100 else
101 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0, NULL, 0);
102
103 if (i915->num_vertex_sampler_views > 0)
104 i915_prepare_vertex_sampling(i915);
105
106 /*
107 * Do the drawing
108 */
109 draw_vbo(i915->draw, info);
110
111 /*
112 * unmap vertex/index buffers
113 */
114 for (i = 0; i < i915->nr_vertex_buffers; i++) {
115 draw_set_mapped_vertex_buffer(i915->draw, i, NULL, 0);
116 }
117 if (mapped_indices)
118 draw_set_indexes(draw, NULL, 0, 0);
119
120 if (i915->num_vertex_sampler_views > 0)
121 i915_cleanup_vertex_sampling(i915);
122
123 /*
124 * Instead of flushing on every state change, we flush once here
125 * when we fire the vbo.
126 */
127 draw_flush(i915->draw);
128 }
129
130
131 /*
132 * Generic context functions
133 */
134
135
i915_destroy(struct pipe_context * pipe)136 static void i915_destroy(struct pipe_context *pipe)
137 {
138 struct i915_context *i915 = i915_context(pipe);
139 int i;
140
141 if (i915->blitter)
142 util_blitter_destroy(i915->blitter);
143
144 draw_destroy(i915->draw);
145
146 if (i915->base.stream_uploader)
147 u_upload_destroy(i915->base.stream_uploader);
148
149 if(i915->batch)
150 i915->iws->batchbuffer_destroy(i915->batch);
151
152 /* unbind framebuffer */
153 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
154 pipe_surface_reference(&i915->framebuffer.cbufs[i], NULL);
155 }
156 pipe_surface_reference(&i915->framebuffer.zsbuf, NULL);
157
158 /* unbind constant buffers */
159 for (i = 0; i < PIPE_SHADER_TYPES; i++) {
160 pipe_resource_reference(&i915->constants[i], NULL);
161 }
162
163 FREE(i915);
164 }
165
166 struct pipe_context *
i915_create_context(struct pipe_screen * screen,void * priv,unsigned flags)167 i915_create_context(struct pipe_screen *screen, void *priv, unsigned flags)
168 {
169 struct i915_context *i915;
170
171 i915 = CALLOC_STRUCT(i915_context);
172 if (!i915)
173 return NULL;
174
175 i915->iws = i915_screen(screen)->iws;
176 i915->base.screen = screen;
177 i915->base.priv = priv;
178 i915->base.stream_uploader = u_upload_create_default(&i915->base);
179 i915->base.const_uploader = i915->base.stream_uploader;
180
181 i915->base.destroy = i915_destroy;
182
183 if (i915_screen(screen)->debug.use_blitter)
184 i915->base.clear = i915_clear_blitter;
185 else
186 i915->base.clear = i915_clear_render;
187
188 i915->base.draw_vbo = i915_draw_vbo;
189
190 /* init this before draw */
191 slab_create(&i915->transfer_pool, sizeof(struct pipe_transfer),
192 16);
193 slab_create(&i915->texture_transfer_pool, sizeof(struct i915_transfer),
194 16);
195
196 /* Batch stream debugging is a bit hacked up at the moment:
197 */
198 i915->batch = i915->iws->batchbuffer_create(i915->iws);
199
200 /*
201 * Create drawing context and plug our rendering stage into it.
202 */
203 i915->draw = draw_create(&i915->base);
204 assert(i915->draw);
205 if (!debug_get_option_i915_no_vbuf()) {
206 draw_set_rasterize_stage(i915->draw, i915_draw_vbuf_stage(i915));
207 } else {
208 draw_set_rasterize_stage(i915->draw, i915_draw_render_stage(i915));
209 }
210
211 i915_init_surface_functions(i915);
212 i915_init_state_functions(i915);
213 i915_init_flush_functions(i915);
214 i915_init_resource_functions(i915);
215 i915_init_query_functions(i915);
216
217 /* Create blitter. */
218 i915->blitter = util_blitter_create(&i915->base);
219 assert(i915->blitter);
220
221 /* must be done before installing Draw stages */
222 util_blitter_cache_all_shaders(i915->blitter);
223
224 draw_install_aaline_stage(i915->draw, &i915->base);
225 draw_install_aapoint_stage(i915->draw, &i915->base);
226 draw_enable_point_sprites(i915->draw, TRUE);
227
228 i915->dirty = ~0;
229 i915->hardware_dirty = ~0;
230 i915->immediate_dirty = ~0;
231 i915->dynamic_dirty = ~0;
232 i915->static_dirty = ~0;
233 i915->flush_dirty = 0;
234
235 return &i915->base;
236 }
237