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 "util/u_memory.h"
  26 #include "util/u_simple_list.h"
  27
  28 #include "r300_blit.h"
  29 #include "r300_context.h"
  30 #include "r300_emit.h"
  31 #include "r300_flush.h"
  32 #include "r300_query.h"
  33 #include "r300_render.h"
  34 #include "r300_screen.h"
  35 #include "r300_state_invariant.h"
  36 #include "r300_texture.h"
  37
  38 #include "radeon_winsys.h"
  39
  40 static void r300_destroy_context(struct pipe_context* context)
  41 {
  42     struct r300_context* r300 = r300_context(context);
  43     struct r300_query* query, * temp;
  44
  45     util_blitter_destroy(r300->blitter);
  46     draw_destroy(r300->draw);
  47
  48     /* Free the OQ BO. */
  49     context->screen->buffer_destroy(r300->oqbo);
  50
  51     /* If there are any queries pending or not destroyed, remove them now. */
  52     foreach_s(query, temp, &r300->query_list) {
  53         remove_from_list(query);
  54         FREE(query);
  55     }
  56
  57     FREE(r300->blend_color_state.state);
  58     FREE(r300->clip_state.state);
  59     FREE(r300->fb_state.state);
  60     FREE(r300->rs_block_state.state);
  61     FREE(r300->scissor_state.state);
  62     FREE(r300->textures_state.state);
  63     FREE(r300->vap_output_state.state);
  64     FREE(r300->viewport_state.state);
  65     FREE(r300->ztop_state.state);
  66     FREE(r300);
  67 }
  68
  69 static unsigned int
  70 r300_is_texture_referenced(struct pipe_context *pipe,
  71                            struct pipe_texture *texture,
  72                            unsigned face, unsigned level)
  73 {
  74     return pipe->is_buffer_referenced(pipe,
  75                                       ((struct r300_texture *)texture)->buffer);
  76 }
  77
  78 static unsigned int
  79 r300_is_buffer_referenced(struct pipe_context *pipe,
  80                           struct pipe_buffer *buf)
  81 {
  82     /* This only checks to see whether actual hardware buffers are
  83      * referenced. Since we use managed BOs and transfers, it's actually not
  84      * possible for pipe_buffers to ever reference the actual hardware, so
  85      * buffers are never referenced.
  86      */
  87
  88     /* XXX: that doesn't make sense given that
  89      * r300_is_texture_referenced is implemented on top of this
  90      * function and hardware can certainly refer to textures
  91      * directly...
  92      */
  93     return 0;
  94 }
  95
  96 static void r300_flush_cb(void *data)
  97 {
  98     struct r300_context* const cs_context_copy = data;
  99
 100     cs_context_copy->context.flush(&cs_context_copy->context, 0, NULL);
 101 }
 102
 103 #define R300_INIT_ATOM(atomname, atomsize) \
 104     r300->atomname.name = #atomname; \
 105     r300->atomname.state = NULL; \
 106     r300->atomname.size = atomsize; \
 107     r300->atomname.emit = r300_emit_##atomname; \
 108     r300->atomname.dirty = FALSE; \
 109     insert_at_tail(&r300->atom_list, &r300->atomname);
 110
 111 static void r300_setup_atoms(struct r300_context* r300)
 112 {
 113     boolean is_r500 = r300_screen(r300->context.screen)->caps->is_r500;
 114     boolean has_tcl = r300_screen(r300->context.screen)->caps->has_tcl;
 115
 116     /* Create the actual atom list.
 117      *
 118      * Each atom is examined and emitted in the order it appears here, which
 119      * can affect performance and conformance if not handled with care.
 120      *
 121      * Some atoms never change size, others change every emit - those have
 122      * the size of 0 here. */
 123     make_empty_list(&r300->atom_list);
 124     R300_INIT_ATOM(invariant_state, 71);
 125     R300_INIT_ATOM(ztop_state, 2);
 126     R300_INIT_ATOM(blend_state, 8);
 127     R300_INIT_ATOM(blend_color_state, is_r500 ? 3 : 2);
 128     R300_INIT_ATOM(clip_state, has_tcl ? 5 + (6 * 4) : 2);
 129     R300_INIT_ATOM(dsa_state, is_r500 ? 8 : 6);
 130     R300_INIT_ATOM(fb_state, 0);
 131     R300_INIT_ATOM(rs_state, 0);
 132     R300_INIT_ATOM(scissor_state, 3);
 133     R300_INIT_ATOM(viewport_state, 9);
 134     R300_INIT_ATOM(rs_block_state, 0);
 135     R300_INIT_ATOM(vertex_stream_state, 0);
 136     R300_INIT_ATOM(vap_output_state, 6);
 137     R300_INIT_ATOM(pvs_flush, 2);
 138     R300_INIT_ATOM(vs_state, 0);
 139     R300_INIT_ATOM(texture_cache_inval, 2);
 140     R300_INIT_ATOM(textures_state, 0);
 141
 142     /* Some non-CSO atoms need explicit space to store the state locally. */
 143     r300->blend_color_state.state = CALLOC_STRUCT(r300_blend_color_state);
 144     r300->clip_state.state = CALLOC_STRUCT(pipe_clip_state);
 145     r300->fb_state.state = CALLOC_STRUCT(pipe_framebuffer_state);
 146     r300->rs_block_state.state = CALLOC_STRUCT(r300_rs_block);
 147     r300->scissor_state.state = CALLOC_STRUCT(pipe_scissor_state);
 148     r300->textures_state.state = CALLOC_STRUCT(r300_textures_state);
 149     r300->vap_output_state.state = CALLOC_STRUCT(r300_vap_output_state);
 150     r300->viewport_state.state = CALLOC_STRUCT(r300_viewport_state);
 151     r300->ztop_state.state = CALLOC_STRUCT(r300_ztop_state);
 152 }
 153
 154 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 155                                          void *priv)
 156 {
 157     struct r300_context* r300 = CALLOC_STRUCT(r300_context);
 158     struct r300_screen* r300screen = r300_screen(screen);
 159     struct radeon_winsys* radeon_winsys = r300screen->radeon_winsys;
 160
 161     if (!r300)
 162         return NULL;
 163
 164     r300screen->ctx = (struct pipe_context*)r300;
 165
 166     r300->winsys = radeon_winsys;
 167
 168     r300->context.winsys = (struct pipe_winsys*)radeon_winsys;
 169     r300->context.screen = screen;
 170     r300->context.priv = priv;
 171
 172     r300->context.destroy = r300_destroy_context;
 173
 174     r300->context.clear = r300_clear;
 175     r300->context.surface_copy = r300_surface_copy;
 176     r300->context.surface_fill = r300_surface_fill;
 177
 178     if (r300screen->caps->has_tcl) {
 179         r300->context.draw_arrays = r300_draw_arrays;
 180         r300->context.draw_elements = r300_draw_elements;
 181         r300->context.draw_range_elements = r300_draw_range_elements;
 182     } else {
 183         r300->context.draw_arrays = r300_swtcl_draw_arrays;
 184         r300->context.draw_elements = r300_draw_elements;
 185         r300->context.draw_range_elements = r300_swtcl_draw_range_elements;
 186
 187         /* Create a Draw. This is used for SW TCL. */
 188         r300->draw = draw_create();
 189         /* Enable our renderer. */
 190         draw_set_rasterize_stage(r300->draw, r300_draw_stage(r300));
 191         /* Enable Draw's clipping. */
 192         draw_set_driver_clipping(r300->draw, FALSE);
 193         /* Force Draw to never do viewport transform, since we can do
 194          * transform in hardware, always. */
 195         draw_set_viewport_state(r300->draw, &r300_viewport_identity);
 196     }
 197
 198     r300->context.is_texture_referenced = r300_is_texture_referenced;
 199     r300->context.is_buffer_referenced = r300_is_buffer_referenced;
 200
 201     r300_setup_atoms(r300);
 202
 203     /* Open up the OQ BO. */
 204     r300->oqbo = screen->buffer_create(screen, 4096,
 205             PIPE_BUFFER_USAGE_VERTEX, 4096);
 206     make_empty_list(&r300->query_list);
 207
 208     r300_init_flush_functions(r300);
 209
 210     r300_init_query_functions(r300);
 211
 212     /* r300_init_surface_functions(r300); */
 213
 214     r300_init_state_functions(r300);
 215
 216     r300->invariant_state.dirty = TRUE;
 217
 218     r300->winsys->set_flush_cb(r300->winsys, r300_flush_cb, r300);
 219     r300->dirty_hw++;
 220
 221     r300->blitter = util_blitter_create(&r300->context);
 222
 223     return &r300->context;
 224 }