src/gallium/drivers/svga/svga_context.c

   1 /**********************************************************
   2  * Copyright 2008-2009 VMware, Inc.  All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  **********************************************************/
  25
  26 #include "svga_cmd.h"
  27
  28 #include "pipe/p_defines.h"
  29 #include "util/u_inlines.h"
  30 #include "pipe/p_screen.h"
  31 #include "util/u_memory.h"
  32 #include "util/u_bitmask.h"
  33
  34 #include "svga_context.h"
  35 #include "svga_screen.h"
  36 #include "svga_surface.h"
  37 #include "svga_resource_texture.h"
  38 #include "svga_resource_buffer.h"
  39 #include "svga_resource.h"
  40 #include "svga_winsys.h"
  41 #include "svga_swtnl.h"
  42 #include "svga_draw.h"
  43 #include "svga_debug.h"
  44 #include "svga_state.h"
  45
  46 DEBUG_GET_ONCE_BOOL_OPTION(no_swtnl, "SVGA_NO_SWTNL", FALSE)
  47 DEBUG_GET_ONCE_BOOL_OPTION(force_swtnl, "SVGA_FORCE_SWTNL", FALSE);
  48 DEBUG_GET_ONCE_BOOL_OPTION(use_min_mipmap, "SVGA_USE_MIN_MIPMAP", FALSE);
  49 DEBUG_GET_ONCE_NUM_OPTION(disable_shader, "SVGA_DISABLE_SHADER", ~0);
  50 DEBUG_GET_ONCE_BOOL_OPTION(no_line_width, "SVGA_NO_LINE_WIDTH", FALSE);
  51 DEBUG_GET_ONCE_BOOL_OPTION(force_hw_line_stipple, "SVGA_FORCE_HW_LINE_STIPPLE", FALSE);
  52
  53 static void svga_destroy( struct pipe_context *pipe )
  54 {
  55    struct svga_context *svga = svga_context( pipe );
  56    unsigned shader;
  57
  58    util_blitter_destroy(svga->blitter);
  59
  60    svga_cleanup_framebuffer( svga );
  61    svga_cleanup_tss_binding( svga );
  62
  63    svga_hwtnl_destroy( svga->hwtnl );
  64
  65    svga_cleanup_vertex_state(svga);
  66
  67    svga->swc->destroy(svga->swc);
  68
  69    svga_destroy_swtnl( svga );
  70
  71    util_bitmask_destroy( svga->vs_bm );
  72    util_bitmask_destroy( svga->fs_bm );
  73
  74    for(shader = 0; shader < PIPE_SHADER_TYPES; ++shader)
  75       pipe_resource_reference( &svga->curr.cb[shader], NULL );
  76
  77    FREE( svga );
  78 }
  79
  80
  81
  82 struct pipe_context *svga_context_create( struct pipe_screen *screen,
  83                                           void *priv )
  84 {
  85    struct svga_screen *svgascreen = svga_screen(screen);
  86    struct svga_context *svga = NULL;
  87    enum pipe_error ret;
  88
  89    svga = CALLOC_STRUCT(svga_context);
  90    if (svga == NULL)
  91       goto no_svga;
  92
  93    svga->pipe.screen = screen;
  94    svga->pipe.priv = priv;
  95    svga->pipe.destroy = svga_destroy;
  96    svga->pipe.clear = svga_clear;
  97
  98    svga->swc = svgascreen->sws->context_create(svgascreen->sws);
  99    if(!svga->swc)
 100       goto no_swc;
 101
 102    svga_init_resource_functions(svga);
 103    svga_init_blend_functions(svga);
 104    svga_init_blit_functions(svga);
 105    svga_init_depth_stencil_functions(svga);
 106    svga_init_draw_functions(svga);
 107    svga_init_flush_functions(svga);
 108    svga_init_misc_functions(svga);
 109    svga_init_rasterizer_functions(svga);
 110    svga_init_sampler_functions(svga);
 111    svga_init_fs_functions(svga);
 112    svga_init_vs_functions(svga);
 113    svga_init_vertex_functions(svga);
 114    svga_init_constbuffer_functions(svga);
 115    svga_init_query_functions(svga);
 116    svga_init_surface_functions(svga);
 117
 118
 119    /* debug */
 120    svga->debug.no_swtnl = debug_get_option_no_swtnl();
 121    svga->debug.force_swtnl = debug_get_option_force_swtnl();
 122    svga->debug.use_min_mipmap = debug_get_option_use_min_mipmap();
 123    svga->debug.disable_shader = debug_get_option_disable_shader();
 124    svga->debug.no_line_width = debug_get_option_no_line_width();
 125    svga->debug.force_hw_line_stipple = debug_get_option_force_hw_line_stipple();
 126
 127    svga->fs_bm = util_bitmask_create();
 128    if (svga->fs_bm == NULL)
 129       goto no_fs_bm;
 130
 131    svga->vs_bm = util_bitmask_create();
 132    if (svga->vs_bm == NULL)
 133       goto no_vs_bm;
 134
 135    svga->hwtnl = svga_hwtnl_create(svga);
 136    if (svga->hwtnl == NULL)
 137       goto no_hwtnl;
 138
 139    if (!svga_init_swtnl(svga))
 140       goto no_swtnl;
 141
 142    ret = svga_emit_initial_state( svga );
 143    if (ret != PIPE_OK)
 144       goto no_state;
 145
 146    /* Avoid shortcircuiting state with initial value of zero.
 147     */
 148    memset(&svga->state.hw_clear, 0xcd, sizeof(svga->state.hw_clear));
 149    memset(&svga->state.hw_clear.framebuffer, 0x0,
 150           sizeof(svga->state.hw_clear.framebuffer));
 151
 152    memset(&svga->state.hw_draw, 0xcd, sizeof(svga->state.hw_draw));
 153    memset(&svga->state.hw_draw.views, 0x0, sizeof(svga->state.hw_draw.views));
 154    svga->state.hw_draw.num_views = 0;
 155
 156    svga->dirty = ~0;
 157
 158    LIST_INITHEAD(&svga->dirty_buffers);
 159
 160    return &svga->pipe;
 161
 162 no_state:
 163    svga_destroy_swtnl(svga);
 164 no_swtnl:
 165    svga_hwtnl_destroy( svga->hwtnl );
 166 no_hwtnl:
 167    util_bitmask_destroy( svga->vs_bm );
 168 no_vs_bm:
 169    util_bitmask_destroy( svga->fs_bm );
 170 no_fs_bm:
 171    svga->swc->destroy(svga->swc);
 172 no_swc:
 173    FREE(svga);
 174 no_svga:
 175    return NULL;
 176 }
 177
 178
 179 void svga_context_flush( struct svga_context *svga,
 180                          struct pipe_fence_handle **pfence )
 181 {
 182    struct svga_screen *svgascreen = svga_screen(svga->pipe.screen);
 183    struct pipe_fence_handle *fence = NULL;
 184
 185    svga->curr.nr_fbs = 0;
 186
 187    /* Ensure that texture dma uploads are processed
 188     * before submitting commands.
 189     */
 190    svga_context_flush_buffers(svga);
 191
 192    /* Flush pending commands to hardware:
 193     */
 194    svga->swc->flush(svga->swc, &fence);
 195
 196    svga_screen_cache_flush(svgascreen, fence);
 197
 198    /* To force the re-emission of rendertargets and texture sampler bindings on
 199     * the next command buffer.
 200     */
 201    svga->rebind.rendertargets = TRUE;
 202    svga->rebind.texture_samplers = TRUE;
 203
 204    if (SVGA_DEBUG & DEBUG_SYNC) {
 205       if (fence)
 206          svga->pipe.screen->fence_finish( svga->pipe.screen, fence,
 207                                           PIPE_TIMEOUT_INFINITE);
 208    }
 209
 210    if(pfence)
 211       svgascreen->sws->fence_reference(svgascreen->sws, pfence, fence);
 212
 213    svgascreen->sws->fence_reference(svgascreen->sws, &fence, NULL);
 214 }
 215
 216
 217 void svga_hwtnl_flush_retry( struct svga_context *svga )
 218 {
 219    enum pipe_error ret = PIPE_OK;
 220
 221    ret = svga_hwtnl_flush( svga->hwtnl );
 222    if (ret == PIPE_ERROR_OUT_OF_MEMORY) {
 223       svga_context_flush( svga, NULL );
 224       ret = svga_hwtnl_flush( svga->hwtnl );
 225    }
 226
 227    assert(ret == 0);
 228 }
 229
 230
 231 /**
 232  * Flush the primitive queue if this buffer is referred.
 233  *
 234  * Otherwise DMA commands on the referred buffer will be emitted too late.
 235  */
 236 void svga_hwtnl_flush_buffer( struct svga_context *svga,
 237                               struct pipe_resource *buffer )
 238 {
 239    if (svga_hwtnl_is_buffer_referred(svga->hwtnl, buffer)) {
 240       svga_hwtnl_flush_retry(svga);
 241    }
 242 }
 243
 244
 245 /* Emit all operations pending on host surfaces.
 246  */
 247 void svga_surfaces_flush(struct svga_context *svga)
 248 {
 249    unsigned i;
 250
 251    /* Emit buffered drawing commands.
 252     */
 253    svga_hwtnl_flush_retry( svga );
 254
 255    /* Emit back-copy from render target view to texture.
 256     */
 257    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 258       if (svga->curr.framebuffer.cbufs[i])
 259          svga_propagate_surface(svga, svga->curr.framebuffer.cbufs[i]);
 260    }
 261
 262    if (svga->curr.framebuffer.zsbuf)
 263       svga_propagate_surface(svga, svga->curr.framebuffer.zsbuf);
 264
 265 }
 266
 267
 268 struct svga_winsys_context *
 269 svga_winsys_context( struct pipe_context *pipe )
 270 {
 271    return svga_context( pipe )->swc;
 272 }