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_batch.h"
30 #include "i915_debug.h"
31 #include "i915_query.h"
32 #include "i915_resource.h"
33 #include "i915_screen.h"
34 #include "i915_state.h"
35 #include "i915_surface.h"
36
37 #include "draw/draw_context.h"
38 #include "pipe/p_defines.h"
39 #include "pipe/p_screen.h"
40 #include "util/u_draw.h"
41 #include "util/u_inlines.h"
42 #include "util/u_memory.h"
43 #include "util/u_prim.h"
44 #include "util/u_upload_mgr.h"
45
46 /*
47 * Draw functions
48 */
49
50 static void
i915_draw_vbo(struct pipe_context * pipe,const struct pipe_draw_info * info,unsigned drawid_offset,const struct pipe_draw_indirect_info * indirect,const struct pipe_draw_start_count_bias * draws,unsigned num_draws)51 i915_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info,
52 unsigned drawid_offset,
53 const struct pipe_draw_indirect_info *indirect,
54 const struct pipe_draw_start_count_bias *draws,
55 unsigned num_draws)
56 {
57 if (num_draws > 1) {
58 util_draw_multi(pipe, info, drawid_offset, indirect, draws, num_draws);
59 return;
60 }
61
62 struct i915_context *i915 = i915_context(pipe);
63 struct draw_context *draw = i915->draw;
64 const void *mapped_indices = NULL;
65 unsigned i;
66
67 if (!u_trim_pipe_prim(info->mode, (unsigned *)&draws[0].count))
68 return;
69
70 /*
71 * Ack vs contants here, helps ipers a lot.
72 */
73 i915->dirty &= ~I915_NEW_VS_CONSTANTS;
74
75 if (i915->dirty)
76 i915_update_derived(i915);
77
78 /*
79 * Map vertex buffers
80 */
81 for (i = 0; i < i915->nr_vertex_buffers; i++) {
82 const void *buf = i915->vertex_buffers[i].is_user_buffer
83 ? i915->vertex_buffers[i].buffer.user
84 : NULL;
85 if (!buf) {
86 if (!i915->vertex_buffers[i].buffer.resource)
87 continue;
88 buf = i915_buffer(i915->vertex_buffers[i].buffer.resource)->data;
89 }
90 draw_set_mapped_vertex_buffer(draw, i, buf, ~0);
91 }
92
93 /*
94 * Map index buffer, if present
95 */
96 if (info->index_size) {
97 mapped_indices = info->has_user_indices ? info->index.user : NULL;
98 if (!mapped_indices)
99 mapped_indices = i915_buffer(info->index.resource)->data;
100 draw_set_indexes(draw, (uint8_t *)mapped_indices, info->index_size, ~0);
101 }
102
103 if (i915->constants[PIPE_SHADER_VERTEX])
104 draw_set_mapped_constant_buffer(
105 draw, PIPE_SHADER_VERTEX, 0,
106 i915_buffer(i915->constants[PIPE_SHADER_VERTEX])->data,
107 (i915->current.num_user_constants[PIPE_SHADER_VERTEX] * 4 *
108 sizeof(float)));
109 else
110 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0, NULL, 0);
111
112 /*
113 * Do the drawing
114 */
115 draw_vbo(i915->draw, info, drawid_offset, NULL, draws, num_draws, 0);
116
117 /*
118 * unmap vertex/index buffers
119 */
120 for (i = 0; i < i915->nr_vertex_buffers; i++) {
121 draw_set_mapped_vertex_buffer(i915->draw, i, NULL, 0);
122 }
123 if (mapped_indices)
124 draw_set_indexes(draw, NULL, 0, 0);
125
126 /*
127 * Instead of flushing on every state change, we flush once here
128 * when we fire the vbo.
129 */
130 draw_flush(i915->draw);
131 }
132
133 /*
134 * Generic context functions
135 */
136
137 static void
i915_destroy(struct pipe_context * pipe)138 i915_destroy(struct pipe_context *pipe)
139 {
140 struct i915_context *i915 = i915_context(pipe);
141 int i;
142
143 if (i915->blitter)
144 util_blitter_destroy(i915->blitter);
145
146 draw_destroy(i915->draw);
147
148 if (i915->base.stream_uploader)
149 u_upload_destroy(i915->base.stream_uploader);
150
151 if (i915->batch)
152 i915->iws->batchbuffer_destroy(i915->batch);
153
154 /* unbind framebuffer */
155 util_unreference_framebuffer_state(&i915->framebuffer);
156
157 /* unbind constant buffers */
158 for (i = 0; i < PIPE_SHADER_TYPES; i++) {
159 pipe_resource_reference(&i915->constants[i], NULL);
160 }
161
162 FREE(i915);
163 }
164
165 static void
i915_set_debug_callback(struct pipe_context * pipe,const struct util_debug_callback * cb)166 i915_set_debug_callback(struct pipe_context *pipe,
167 const struct util_debug_callback *cb)
168 {
169 struct i915_context *i915 = i915_context(pipe);
170
171 if (cb)
172 i915->debug = *cb;
173 else
174 memset(&i915->debug, 0, sizeof(i915->debug));
175 }
176
177 struct pipe_context *
i915_create_context(struct pipe_screen * screen,void * priv,unsigned flags)178 i915_create_context(struct pipe_screen *screen, void *priv, unsigned flags)
179 {
180 struct i915_context *i915;
181
182 i915 = CALLOC_STRUCT(i915_context);
183 if (!i915)
184 return NULL;
185
186 i915->iws = i915_screen(screen)->iws;
187 i915->base.screen = screen;
188 i915->base.priv = priv;
189 i915->base.stream_uploader = u_upload_create_default(&i915->base);
190 i915->base.const_uploader = i915->base.stream_uploader;
191 i915->base.set_debug_callback = i915_set_debug_callback;
192
193 i915->base.destroy = i915_destroy;
194
195 if (i915_screen(screen)->debug.use_blitter)
196 i915->base.clear = i915_clear_blitter;
197 else
198 i915->base.clear = i915_clear_render;
199
200 i915->base.draw_vbo = i915_draw_vbo;
201
202 /* init this before draw */
203 slab_create(&i915->transfer_pool, sizeof(struct pipe_transfer), 16);
204 slab_create(&i915->texture_transfer_pool, sizeof(struct i915_transfer), 16);
205
206 /* Batch stream debugging is a bit hacked up at the moment:
207 */
208 i915->batch = i915->iws->batchbuffer_create(i915->iws);
209
210 /*
211 * Create drawing context and plug our rendering stage into it.
212 */
213 i915->draw = draw_create(&i915->base);
214 assert(i915->draw);
215 if (i915_debug & DBG_VBUF) {
216 draw_set_rasterize_stage(i915->draw, i915_draw_vbuf_stage(i915));
217 } else {
218 draw_set_rasterize_stage(i915->draw, i915_draw_render_stage(i915));
219 }
220
221 i915_init_surface_functions(i915);
222 i915_init_state_functions(i915);
223 i915_init_flush_functions(i915);
224 i915_init_resource_functions(i915);
225 i915_init_query_functions(i915);
226
227 /* Create blitter. */
228 i915->blitter = util_blitter_create(&i915->base);
229 assert(i915->blitter);
230
231 /* must be done before installing Draw stages */
232 i915->no_log_program_errors = true;
233 util_blitter_cache_all_shaders(i915->blitter);
234 i915->no_log_program_errors = false;
235
236 draw_install_aaline_stage(i915->draw, &i915->base);
237 draw_install_aapoint_stage(i915->draw, &i915->base, nir_type_float32);
238 draw_enable_point_sprites(i915->draw, true);
239
240 i915->dirty = ~0;
241 i915->hardware_dirty = ~0;
242 i915->immediate_dirty = ~0;
243 i915->dynamic_dirty = ~0;
244 i915->static_dirty = ~0;
245 i915->flush_dirty = 0;
246
247 i915->current.fixup_swizzle = ~0;
248
249 return &i915->base;
250 }
251