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path: root/src/gallium/drivers/svga/svga_context.c
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Diffstat (limited to 'src/gallium/drivers/svga/svga_context.c')
-rw-r--r--src/gallium/drivers/svga/svga_context.c269
1 files changed, 269 insertions, 0 deletions
diff --git a/src/gallium/drivers/svga/svga_context.c b/src/gallium/drivers/svga/svga_context.c
new file mode 100644
index 0000000000..73233957f3
--- /dev/null
+++ b/src/gallium/drivers/svga/svga_context.c
@@ -0,0 +1,269 @@
+/**********************************************************
+ * Copyright 2008-2009 VMware, Inc. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+#include "svga_cmd.h"
+
+#include "pipe/p_defines.h"
+#include "pipe/p_inlines.h"
+#include "pipe/p_screen.h"
+#include "util/u_memory.h"
+#include "util/u_upload_mgr.h"
+
+#include "svga_context.h"
+#include "svga_screen.h"
+#include "svga_screen_texture.h"
+#include "svga_screen_buffer.h"
+#include "svga_winsys.h"
+#include "svga_swtnl.h"
+#include "svga_draw.h"
+#include "svga_debug.h"
+#include "svga_state.h"
+
+
+static void svga_destroy( struct pipe_context *pipe )
+{
+ struct svga_context *svga = svga_context( pipe );
+ unsigned shader;
+
+ svga_cleanup_framebuffer( svga );
+ svga_cleanup_tss_binding( svga );
+
+ svga_hwtnl_destroy( svga->hwtnl );
+
+ svga_cleanup_vertex_state(svga);
+
+ svga->swc->destroy(svga->swc);
+
+ svga_destroy_swtnl( svga );
+
+ u_upload_destroy( svga->upload_vb );
+ u_upload_destroy( svga->upload_ib );
+
+ for(shader = 0; shader < PIPE_SHADER_TYPES; ++shader)
+ pipe_buffer_reference( &svga->curr.cb[shader], NULL );
+
+ FREE( svga );
+}
+
+static unsigned int
+svga_is_texture_referenced( struct pipe_context *pipe,
+ struct pipe_texture *texture,
+ unsigned face, unsigned level)
+{
+ struct svga_texture *tex = svga_texture(texture);
+ struct svga_screen *ss = svga_screen(pipe->screen);
+
+ /**
+ * The screen does not cache texture writes.
+ */
+
+ if (!tex->handle || ss->sws->surface_is_flushed(ss->sws, tex->handle))
+ return PIPE_UNREFERENCED;
+
+ /**
+ * sws->surface_is_flushed() does not distinguish between read references
+ * and write references. So assume a reference is both.
+ */
+
+ return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
+}
+
+static unsigned int
+svga_is_buffer_referenced( struct pipe_context *pipe,
+ struct pipe_buffer *buf)
+
+{
+ struct svga_screen *ss = svga_screen(pipe->screen);
+ struct svga_buffer *sbuf = svga_buffer(buf);
+
+ /**
+ * XXX: Check this.
+ * The screen may cache buffer writes, but when we map, we map out
+ * of those cached writes, so we don't need to set a
+ * PIPE_REFERENCED_FOR_WRITE flag for cached buffers.
+ */
+
+ if (!sbuf->handle || ss->sws->surface_is_flushed(ss->sws, sbuf->handle))
+ return PIPE_UNREFERENCED;
+
+ /**
+ * sws->surface_is_flushed() does not distinguish between read references
+ * and write references. So assume a reference is both,
+ * however, we make an exception for index- and vertex buffers, to avoid
+ * a flush in st_bufferobj_get_subdata, during display list replay.
+ */
+
+ if (sbuf->base.usage & (PIPE_BUFFER_USAGE_VERTEX | PIPE_BUFFER_USAGE_INDEX))
+ return PIPE_REFERENCED_FOR_READ;
+
+ return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
+}
+
+
+struct pipe_context *svga_context_create( struct pipe_screen *screen )
+{
+ struct svga_screen *svgascreen = svga_screen(screen);
+ struct svga_context *svga = NULL;
+ enum pipe_error ret;
+
+ svga = CALLOC_STRUCT(svga_context);
+ if (svga == NULL)
+ goto error1;
+
+ svga->pipe.winsys = screen->winsys;
+ svga->pipe.screen = screen;
+ svga->pipe.destroy = svga_destroy;
+ svga->pipe.clear = svga_clear;
+
+ svga->pipe.is_texture_referenced = svga_is_texture_referenced;
+ svga->pipe.is_buffer_referenced = svga_is_buffer_referenced;
+
+ svga->swc = svgascreen->sws->context_create(svgascreen->sws);
+ if(!svga->swc)
+ goto error2;
+
+ svga_init_blend_functions(svga);
+ svga_init_blit_functions(svga);
+ svga_init_depth_stencil_functions(svga);
+ svga_init_draw_functions(svga);
+ svga_init_flush_functions(svga);
+ svga_init_misc_functions(svga);
+ svga_init_rasterizer_functions(svga);
+ svga_init_sampler_functions(svga);
+ svga_init_fs_functions(svga);
+ svga_init_vs_functions(svga);
+ svga_init_vertex_functions(svga);
+ svga_init_constbuffer_functions(svga);
+ svga_init_query_functions(svga);
+
+ /* debug */
+ svga->debug.no_swtnl = debug_get_bool_option("SVGA_NO_SWTNL", FALSE);
+ svga->debug.force_swtnl = debug_get_bool_option("SVGA_FORCE_SWTNL", FALSE);
+ svga->debug.use_min_mipmap = debug_get_bool_option("SVGA_USE_MIN_MIPMAP", FALSE);
+ svga->debug.disable_shader = debug_get_num_option("SVGA_DISABLE_SHADER", ~0);
+
+ if (!svga_init_swtnl(svga))
+ goto error3;
+
+ svga->upload_ib = u_upload_create( svga->pipe.screen,
+ 32 * 1024,
+ 16,
+ PIPE_BUFFER_USAGE_INDEX );
+ if (svga->upload_ib == NULL)
+ goto error4;
+
+ svga->upload_vb = u_upload_create( svga->pipe.screen,
+ 128 * 1024,
+ 16,
+ PIPE_BUFFER_USAGE_VERTEX );
+ if (svga->upload_vb == NULL)
+ goto error5;
+
+ svga->hwtnl = svga_hwtnl_create( svga,
+ svga->upload_ib,
+ svga->swc );
+ if (svga->hwtnl == NULL)
+ goto error6;
+
+
+ ret = svga_emit_initial_state( svga );
+ if (ret)
+ goto error7;
+
+ /* Avoid shortcircuiting state with initial value of zero.
+ */
+ memset(&svga->state.hw_clear, 0xcd, sizeof(svga->state.hw_clear));
+ memset(&svga->state.hw_clear.framebuffer, 0x0,
+ sizeof(svga->state.hw_clear.framebuffer));
+
+ memset(&svga->state.hw_draw, 0xcd, sizeof(svga->state.hw_draw));
+ memset(&svga->state.hw_draw.views, 0x0, sizeof(svga->state.hw_draw.views));
+ svga->state.hw_draw.num_views = 0;
+
+ svga->dirty = ~0;
+ svga->state.white_fs_id = SVGA3D_INVALID_ID;
+
+ LIST_INITHEAD(&svga->dirty_buffers);
+
+ return &svga->pipe;
+
+error7:
+ svga_hwtnl_destroy( svga->hwtnl );
+error6:
+ u_upload_destroy( svga->upload_vb );
+error5:
+ u_upload_destroy( svga->upload_ib );
+error4:
+ svga_destroy_swtnl(svga);
+error3:
+ svga->swc->destroy(svga->swc);
+error2:
+ FREE(svga);
+error1:
+ return NULL;
+}
+
+
+void svga_context_flush( struct svga_context *svga,
+ struct pipe_fence_handle **pfence )
+{
+ struct svga_screen *svgascreen = svga_screen(svga->pipe.screen);
+
+ /* Unmap upload manager buffers:
+ */
+ u_upload_flush(svga->upload_vb);
+ u_upload_flush(svga->upload_ib);
+
+ /* Flush screen, to ensure that texture dma uploads are processed
+ * before submitting commands.
+ */
+ svga_screen_flush(svgascreen, NULL);
+
+ svga_context_flush_buffers(svga);
+
+ /* Flush pending commands to hardware:
+ */
+ svga->swc->flush(svga->swc, pfence);
+
+ if (SVGA_DEBUG & DEBUG_SYNC) {
+ if (pfence && *pfence)
+ svga->pipe.screen->fence_finish( svga->pipe.screen, *pfence, 0);
+ }
+}
+
+
+void svga_hwtnl_flush_retry( struct svga_context *svga )
+{
+ enum pipe_error ret = PIPE_OK;
+
+ ret = svga_hwtnl_flush( svga->hwtnl );
+ if (ret == PIPE_ERROR_OUT_OF_MEMORY) {
+ svga_context_flush( svga, NULL );
+ ret = svga_hwtnl_flush( svga->hwtnl );
+ }
+
+ assert(ret == 0);
+}
+