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->shader_id_bm );
  72
  73    for(shader = 0; shader < PIPE_SHADER_TYPES; ++shader)
  74       pipe_resource_reference( &svga->curr.cb[shader], NULL );
  75
  76    FREE( svga );
  77 }
  78
  79
  80
  81 struct pipe_context *svga_context_create( struct pipe_screen *screen,
  82                                           void *priv )
  83 {
  84    struct svga_screen *svgascreen = svga_screen(screen);
  85    struct svga_context *svga = NULL;
  86    enum pipe_error ret;
  87
  88    svga = CALLOC_STRUCT(svga_context);
  89    if (svga == NULL)
  90       goto no_svga;
  91
  92    svga->pipe.screen = screen;
  93    svga->pipe.priv = priv;
  94    svga->pipe.destroy = svga_destroy;
  95    svga->pipe.clear = svga_clear;
  96
  97    svga->swc = svgascreen->sws->context_create(svgascreen->sws);
  98    if(!svga->swc)
  99       goto no_swc;
 100
 101    svga_init_resource_functions(svga);
 102    svga_init_blend_functions(svga);
 103    svga_init_blit_functions(svga);
 104    svga_init_depth_stencil_functions(svga);
 105    svga_init_draw_functions(svga);
 106    svga_init_flush_functions(svga);
 107    svga_init_misc_functions(svga);
 108    svga_init_rasterizer_functions(svga);
 109    svga_init_sampler_functions(svga);
 110    svga_init_fs_functions(svga);
 111    svga_init_vs_functions(svga);
 112    svga_init_vertex_functions(svga);
 113    svga_init_constbuffer_functions(svga);
 114    svga_init_query_functions(svga);
 115    svga_init_surface_functions(svga);
 116
 117
 118    /* debug */
 119    svga->debug.no_swtnl = debug_get_option_no_swtnl();
 120    svga->debug.force_swtnl = debug_get_option_force_swtnl();
 121    svga->debug.use_min_mipmap = debug_get_option_use_min_mipmap();
 122    svga->debug.disable_shader = debug_get_option_disable_shader();
 123    svga->debug.no_line_width = debug_get_option_no_line_width();
 124    svga->debug.force_hw_line_stipple = debug_get_option_force_hw_line_stipple();
 125
 126    svga->shader_id_bm = util_bitmask_create();
 127    if (svga->shader_id_bm == NULL)
 128       goto no_shader_bm;
 129
 130    svga->hwtnl = svga_hwtnl_create(svga);
 131    if (svga->hwtnl == NULL)
 132       goto no_hwtnl;
 133
 134    if (!svga_init_swtnl(svga))
 135       goto no_swtnl;
 136
 137    ret = svga_emit_initial_state( svga );
 138    if (ret != PIPE_OK)
 139       goto no_state;
 140
 141    /* Avoid shortcircuiting state with initial value of zero.
 142     */
 143    memset(&svga->state.hw_clear, 0xcd, sizeof(svga->state.hw_clear));
 144    memset(&svga->state.hw_clear.framebuffer, 0x0,
 145           sizeof(svga->state.hw_clear.framebuffer));
 146
 147    memset(&svga->state.hw_draw, 0xcd, sizeof(svga->state.hw_draw));
 148    memset(&svga->state.hw_draw.views, 0x0, sizeof(svga->state.hw_draw.views));
 149    svga->state.hw_draw.num_views = 0;
 150
 151    svga->dirty = ~0;
 152
 153    LIST_INITHEAD(&svga->dirty_buffers);
 154
 155    return &svga->pipe;
 156
 157 no_state:
 158    svga_destroy_swtnl(svga);
 159 no_swtnl:
 160    svga_hwtnl_destroy( svga->hwtnl );
 161 no_hwtnl:
 162    util_bitmask_destroy( svga->shader_id_bm );
 163 no_shader_bm:
 164    svga->swc->destroy(svga->swc);
 165 no_swc:
 166    FREE(svga);
 167 no_svga:
 168    return NULL;
 169 }
 170
 171
 172 void svga_context_flush( struct svga_context *svga,
 173                          struct pipe_fence_handle **pfence )
 174 {
 175    struct svga_screen *svgascreen = svga_screen(svga->pipe.screen);
 176    struct pipe_fence_handle *fence = NULL;
 177
 178    svga->curr.nr_fbs = 0;
 179
 180    /* Ensure that texture dma uploads are processed
 181     * before submitting commands.
 182     */
 183    svga_context_flush_buffers(svga);
 184
 185    /* Flush pending commands to hardware:
 186     */
 187    svga->swc->flush(svga->swc, &fence);
 188
 189    svga_screen_cache_flush(svgascreen, fence);
 190
 191    /* To force the re-emission of rendertargets and texture sampler bindings on
 192     * the next command buffer.
 193     */
 194    svga->rebind.rendertargets = TRUE;
 195    svga->rebind.texture_samplers = TRUE;
 196
 197    if (SVGA_DEBUG & DEBUG_SYNC) {
 198       if (fence)
 199          svga->pipe.screen->fence_finish( svga->pipe.screen, fence,
 200                                           PIPE_TIMEOUT_INFINITE);
 201    }
 202
 203    if(pfence)
 204       svgascreen->sws->fence_reference(svgascreen->sws, pfence, fence);
 205
 206    svgascreen->sws->fence_reference(svgascreen->sws, &fence, NULL);
 207 }
 208
 209
 210 void svga_hwtnl_flush_retry( struct svga_context *svga )
 211 {
 212    enum pipe_error ret = PIPE_OK;
 213
 214    ret = svga_hwtnl_flush( svga->hwtnl );
 215    if (ret == PIPE_ERROR_OUT_OF_MEMORY) {
 216       svga_context_flush( svga, NULL );
 217       ret = svga_hwtnl_flush( svga->hwtnl );
 218    }
 219
 220    assert(ret == 0);
 221 }
 222
 223
 224 /**
 225  * Flush the primitive queue if this buffer is referred.
 226  *
 227  * Otherwise DMA commands on the referred buffer will be emitted too late.
 228  */
 229 void svga_hwtnl_flush_buffer( struct svga_context *svga,
 230                               struct pipe_resource *buffer )
 231 {
 232    if (svga_hwtnl_is_buffer_referred(svga->hwtnl, buffer)) {
 233       svga_hwtnl_flush_retry(svga);
 234    }
 235 }
 236
 237
 238 /* Emit all operations pending on host surfaces.
 239  */
 240 void svga_surfaces_flush(struct svga_context *svga)
 241 {
 242    struct svga_screen *svgascreen = svga_screen(svga->pipe.screen);
 243    unsigned i;
 244
 245    /* Emit buffered drawing commands.
 246     */
 247    svga_hwtnl_flush_retry( svga );
 248
 249    /* Emit back-copy from render target view to texture.
 250     */
 251    for (i = 0; i < svgascreen->max_color_buffers; i++) {
 252       if (svga->curr.framebuffer.cbufs[i])
 253          svga_propagate_surface(svga, svga->curr.framebuffer.cbufs[i]);
 254    }
 255
 256    if (svga->curr.framebuffer.zsbuf)
 257       svga_propagate_surface(svga, svga->curr.framebuffer.zsbuf);
 258
 259 }
 260
 261
 262 struct svga_winsys_context *
 263 svga_winsys_context( struct pipe_context *pipe )
 264 {
 265    return svga_context( pipe )->swc;
 266 }