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