src/gallium/drivers/r300/r300_context.c

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  22
  23 #include "draw/draw_context.h"
  24
  25 #include "pipe/p_inlines.h"
  26
  27 #include "tgsi/tgsi_scan.h"
  28
  29 #include "util/u_hash_table.h"
  30 #include "util/u_memory.h"
  31 #include "util/u_simple_list.h"
  32
  33 #include "r300_clear.h"
  34 #include "r300_context.h"
  35 #include "r300_flush.h"
  36 #include "r300_query.h"
  37 #include "r300_render.h"
  38 #include "r300_screen.h"
  39 #include "r300_state_derived.h"
  40 #include "r300_state_invariant.h"
  41 #include "r300_winsys.h"
  42
  43 static enum pipe_error r300_clear_hash_table(void* key, void* value,
  44                                              void* data)
  45 {
  46     FREE(key);
  47     FREE(value);
  48     return PIPE_OK;
  49 }
  50
  51 static void r300_destroy_context(struct pipe_context* context)
  52 {
  53     struct r300_context* r300 = r300_context(context);
  54     struct r300_query* query, * temp;
  55
  56     util_hash_table_foreach(r300->shader_hash_table, r300_clear_hash_table,
  57         NULL);
  58     util_hash_table_destroy(r300->shader_hash_table);
  59
  60     draw_destroy(r300->draw);
  61
  62     /* Free the OQ BO. */
  63     context->screen->buffer_destroy(r300->oqbo);
  64
  65     /* If there are any queries pending or not destroyed, remove them now. */
  66     foreach_s(query, temp, &r300->query_list) {
  67         remove_from_list(query);
  68         FREE(query);
  69     }
  70
  71     FREE(r300->blend_color_state);
  72     FREE(r300->rs_block);
  73     FREE(r300->scissor_state);
  74     FREE(r300->viewport_state);
  75     FREE(r300);
  76 }
  77
  78 static unsigned int
  79 r300_is_texture_referenced( struct pipe_context *pipe,
  80                             struct pipe_texture *texture,
  81                             unsigned face, unsigned level)
  82 {
  83    /**
  84     * FIXME: Optimize.
  85     */
  86
  87    return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
  88 }
  89
  90 static unsigned int
  91 r300_is_buffer_referenced( struct pipe_context *pipe,
  92                            struct pipe_buffer *buf)
  93 {
  94    /**
  95     * FIXME: Optimize.
  96     */
  97
  98    return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
  99 }
 100
 101 static void r300_flush_cb(void *data)
 102 {
 103     struct r300_context* const cs_context_copy = data;
 104
 105     cs_context_copy->context.flush(&cs_context_copy->context, 0, NULL);
 106 }
 107
 108 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 109                                          struct r300_winsys* r300_winsys)
 110 {
 111     struct r300_context* r300 = CALLOC_STRUCT(r300_context);
 112
 113     if (!r300)
 114         return NULL;
 115
 116     r300->winsys = r300_winsys;
 117
 118     r300->context.winsys = (struct pipe_winsys*)r300_winsys;
 119     r300->context.screen = screen;
 120
 121     r300_init_debug(r300);
 122
 123     r300->context.destroy = r300_destroy_context;
 124
 125     r300->context.clear = r300_clear;
 126
 127     r300->context.draw_arrays = r300_draw_arrays;
 128     r300->context.draw_elements = r300_draw_elements;
 129     r300->context.draw_range_elements = r300_swtcl_draw_range_elements;
 130
 131     r300->context.is_texture_referenced = r300_is_texture_referenced;
 132     r300->context.is_buffer_referenced = r300_is_buffer_referenced;
 133
 134     r300->shader_hash_table = util_hash_table_create(r300_shader_key_hash,
 135         r300_shader_key_compare);
 136
 137     r300->blend_color_state = CALLOC_STRUCT(r300_blend_color_state);
 138     r300->rs_block = CALLOC_STRUCT(r300_rs_block);
 139     r300->scissor_state = CALLOC_STRUCT(r300_scissor_state);
 140     r300->viewport_state = CALLOC_STRUCT(r300_viewport_state);
 141
 142     /* Create a Draw. This is used for vert collation and SW TCL. */
 143     r300->draw = draw_create();
 144     /* Enable our renderer. */
 145     draw_set_rasterize_stage(r300->draw, r300_draw_stage(r300));
 146     /* Disable Draw's clipping if TCL is present. */
 147     draw_set_driver_clipping(r300->draw, r300_screen(screen)->caps->has_tcl);
 148     /* Force Draw to never do viewport transform, since (again) we can do
 149      * transform in hardware, always. */
 150     draw_set_viewport_state(r300->draw, &r300_viewport_identity);
 151
 152     /* Open up the OQ BO. */
 153     r300->oqbo = screen->buffer_create(screen, 4096,
 154             PIPE_BUFFER_USAGE_VERTEX, 4096);
 155
 156     r300_init_flush_functions(r300);
 157
 158     r300_init_query_functions(r300);
 159
 160     /* r300_init_surface_functions(r300); */
 161
 162     r300_init_state_functions(r300);
 163
 164     r300_emit_invariant_state(r300);
 165
 166     r300->winsys->set_flush_cb(r300->winsys, r300_flush_cb, r300);
 167     r300->dirty_state = R300_NEW_KITCHEN_SINK;
 168     r300->dirty_hw++;
 169     make_empty_list(&r300->query_list);
 170     return &r300->context;
 171 }