1 /************************************************************************** 2 * 3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. 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 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. 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 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 index buffer, if present 69 */ 70 if (info->indexed) { 71 mapped_indices = i915->index_buffer.user_buffer; 72 if (!mapped_indices) 73 mapped_indices = i915_buffer(i915->index_buffer.buffer)->data; 74 draw_set_indexes(draw, 75 (ubyte *) mapped_indices + i915->index_buffer.offset, 76 i915->index_buffer.index_size); 77 } 78 79 if (i915->constants[PIPE_SHADER_VERTEX]) 80 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0, 81 i915_buffer(i915->constants[PIPE_SHADER_VERTEX])->data, 82 (i915->current.num_user_constants[PIPE_SHADER_VERTEX] * 83 4 * sizeof(float))); 84 else 85 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0, NULL, 0); 86 87 if (i915->num_vertex_sampler_views > 0) 88 i915_prepare_vertex_sampling(i915); 89 90 /* 91 * Do the drawing 92 */ 93 draw_vbo(i915->draw, info); 94 95 if (mapped_indices) 96 draw_set_indexes(draw, NULL, 0); 97 98 if (i915->num_vertex_sampler_views > 0) 99 i915_cleanup_vertex_sampling(i915); 100 101 /* 102 * Instead of flushing on every state change, we flush once here 103 * when we fire the vbo. 104 */ 105 draw_flush(i915->draw); 106 } 107 108 109 /* 110 * Generic context functions 111 */ 112 113 114 static void i915_destroy(struct pipe_context *pipe) 115 { 116 struct i915_context *i915 = i915_context(pipe); 117 int i; 118 119 if (i915->blitter) 120 util_blitter_destroy(i915->blitter); 121 122 draw_destroy(i915->draw); 123 124 if(i915->batch) 125 i915->iws->batchbuffer_destroy(i915->batch); 126 127 /* unbind framebuffer */ 128 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { 129 pipe_surface_reference(&i915->framebuffer.cbufs[i], NULL); 130 } 131 pipe_surface_reference(&i915->framebuffer.zsbuf, NULL); 132 133 /* unbind constant buffers */ 134 for (i = 0; i < PIPE_SHADER_TYPES; i++) { 135 pipe_resource_reference(&i915->constants[i], NULL); 136 } 137 138 FREE(i915); 139 } 140 141 struct pipe_context * 142 i915_create_context(struct pipe_screen *screen, void *priv) 143 { 144 struct i915_context *i915; 145 146 i915 = CALLOC_STRUCT(i915_context); 147 if (i915 == NULL) 148 return NULL; 149 150 i915->iws = i915_screen(screen)->iws; 151 i915->base.screen = screen; 152 i915->base.priv = priv; 153 154 i915->base.destroy = i915_destroy; 155 156 if (i915_screen(screen)->debug.use_blitter) 157 i915->base.clear = i915_clear_blitter; 158 else 159 i915->base.clear = i915_clear_render; 160 161 i915->base.draw_vbo = i915_draw_vbo; 162 163 /* init this before draw */ 164 util_slab_create(&i915->transfer_pool, sizeof(struct pipe_transfer), 165 16, UTIL_SLAB_SINGLETHREADED); 166 util_slab_create(&i915->texture_transfer_pool, sizeof(struct i915_transfer), 167 16, UTIL_SLAB_SINGLETHREADED); 168 169 /* Batch stream debugging is a bit hacked up at the moment: 170 */ 171 i915->batch = i915->iws->batchbuffer_create(i915->iws); 172 173 /* 174 * Create drawing context and plug our rendering stage into it. 175 */ 176 i915->draw = draw_create(&i915->base); 177 assert(i915->draw); 178 if (!debug_get_option_i915_no_vbuf()) { 179 draw_set_rasterize_stage(i915->draw, i915_draw_vbuf_stage(i915)); 180 } else { 181 draw_set_rasterize_stage(i915->draw, i915_draw_render_stage(i915)); 182 } 183 184 i915_init_surface_functions(i915); 185 i915_init_state_functions(i915); 186 i915_init_flush_functions(i915); 187 i915_init_resource_functions(i915); 188 i915_init_query_functions(i915); 189 190 draw_install_aaline_stage(i915->draw, &i915->base); 191 draw_install_aapoint_stage(i915->draw, &i915->base); 192 draw_enable_point_sprites(i915->draw, TRUE); 193 194 /* augmented draw pipeline clobbers state functions */ 195 i915_init_fixup_state_functions(i915); 196 197 /* Create blitter last - calls state creation functions. */ 198 i915->blitter = util_blitter_create(&i915->base); 199 assert(i915->blitter); 200 201 i915->dirty = ~0; 202 i915->hardware_dirty = ~0; 203 i915->immediate_dirty = ~0; 204 i915->dynamic_dirty = ~0; 205 i915->static_dirty = ~0; 206 i915->flush_dirty = 0; 207 208 return &i915->base; 209 } 210
