svga: Add svga driver

1 files changed, 435 insertions, 0 deletions

diff --git a/src/gallium/drivers/svga/svga_screen.c b/src/gallium/drivers/svga/svga_screen.c
new file mode 100644
index 00000000000..3afcaffff55
--- /dev/null
+++ b/src/gallium/drivers/svga/svga_screen.c
@@ -0,0 +1,435 @@
+/**********************************************************
+ * 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 "util/u_memory.h"
+#include "pipe/p_inlines.h"
+#include "util/u_string.h"
+#include "util/u_math.h"
+
+#include "svga_winsys.h"
+#include "svga_context.h"
+#include "svga_screen.h"
+#include "svga_screen_texture.h"
+#include "svga_screen_buffer.h"
+#include "svga_cmd.h"
+#include "svga_debug.h"
+
+#include "svga_hw_reg.h"
+#include "svga3d_shaderdefs.h"
+
+
+#ifdef DEBUG
+int SVGA_DEBUG = 0;
+
+static const struct debug_named_value svga_debug_flags[] = {
+   { "dma",      DEBUG_DMA },
+   { "tgsi",     DEBUG_TGSI },
+   { "pipe",     DEBUG_PIPE },
+   { "state",    DEBUG_STATE },
+   { "screen",   DEBUG_SCREEN },
+   { "tex",      DEBUG_TEX },
+   { "swtnl",    DEBUG_SWTNL },
+   { "const",    DEBUG_CONSTS },
+   { "viewport", DEBUG_VIEWPORT },
+   { "views",    DEBUG_VIEWS },
+   { "perf",     DEBUG_PERF },
+   { "flush",    DEBUG_FLUSH },
+   { "sync",     DEBUG_SYNC },
+   {NULL, 0}
+};
+#endif
+
+static const char *
+svga_get_vendor( struct pipe_screen *pscreen )
+{
+   return "VMware, Inc.";
+}
+
+
+static const char *
+svga_get_name( struct pipe_screen *pscreen )
+{
+#ifdef DEBUG
+   /* Only return internal details in the DEBUG version:
+    */
+   return "SVGA3D; build: DEBUG; mutex: " PIPE_ATOMIC;
+#else
+   return "SVGA3D; build: RELEASE; ";
+#endif
+}
+
+
+
+
+static float
+svga_get_paramf(struct pipe_screen *screen, int param)
+{
+   struct svga_screen *svgascreen = svga_screen(screen);
+   struct svga_winsys_screen *sws = svgascreen->sws;
+   SVGA3dDevCapResult result;
+
+   switch (param) {
+   case PIPE_CAP_MAX_LINE_WIDTH:
+      /* fall-through */
+   case PIPE_CAP_MAX_LINE_WIDTH_AA:
+      return 7.0;
+
+   case PIPE_CAP_MAX_POINT_WIDTH:
+      /* fall-through */
+   case PIPE_CAP_MAX_POINT_WIDTH_AA:
+      /* Keep this to a reasonable size to avoid failures in
+       * conform/pntaa.c:
+       */
+      return 80.0;
+
+   case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
+      return 4.0;
+
+   case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
+      return 16.0;
+
+   case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
+      return 16;
+   case PIPE_CAP_NPOT_TEXTURES:
+      return 1;
+   case PIPE_CAP_TWO_SIDED_STENCIL:
+      return 1;
+   case PIPE_CAP_GLSL:
+      return svgascreen->use_ps30 && svgascreen->use_vs30;
+   case PIPE_CAP_ANISOTROPIC_FILTER:
+      return 1;
+   case PIPE_CAP_POINT_SPRITE:
+      return 1;
+   case PIPE_CAP_MAX_RENDER_TARGETS:
+      if(!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_RENDER_TARGETS, &result))
+         return 1;
+      if(!result.u)
+         return 1;
+      return MIN2(result.u, PIPE_MAX_COLOR_BUFS);
+   case PIPE_CAP_OCCLUSION_QUERY:
+      return 1;
+   case PIPE_CAP_TEXTURE_SHADOW_MAP:
+      return 1;
+   case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
+      return SVGA_MAX_TEXTURE_LEVELS;
+   case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
+      return 8;  /* max 128x128x128 */
+   case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
+      return SVGA_MAX_TEXTURE_LEVELS;
+
+   case PIPE_CAP_TEXTURE_MIRROR_REPEAT: /* req. for GL 1.4 */
+      return 1;
+
+   case PIPE_CAP_BLEND_EQUATION_SEPARATE: /* req. for GL 1.5 */
+      return 1;
+
+   default:
+      return 0;
+   }
+}
+
+
+/* This is a fairly pointless interface
+ */
+static int
+svga_get_param(struct pipe_screen *screen, int param)
+{
+   return (int) svga_get_paramf( screen, param );
+}
+
+
+static INLINE SVGA3dDevCapIndex
+svga_translate_format_cap(enum pipe_format format)
+{
+   switch(format) {
+   
+   case PIPE_FORMAT_A8R8G8B8_UNORM:
+      return SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8;
+   case PIPE_FORMAT_X8R8G8B8_UNORM:
+      return SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8;
+
+   case PIPE_FORMAT_R5G6B5_UNORM:
+      return SVGA3D_DEVCAP_SURFACEFMT_R5G6B5;
+   case PIPE_FORMAT_A1R5G5B5_UNORM:
+      return SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5;
+   case PIPE_FORMAT_A4R4G4B4_UNORM:
+      return SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4;
+
+   case PIPE_FORMAT_Z16_UNORM:
+      return SVGA3D_DEVCAP_SURFACEFMT_Z_D16;
+   case PIPE_FORMAT_Z24S8_UNORM:
+      return SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8;
+   case PIPE_FORMAT_Z24X8_UNORM:
+      return SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8;
+
+   case PIPE_FORMAT_A8_UNORM:
+      return SVGA3D_DEVCAP_SURFACEFMT_ALPHA8;
+   case PIPE_FORMAT_L8_UNORM:
+      return SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8;
+
+   case PIPE_FORMAT_DXT1_RGB:
+   case PIPE_FORMAT_DXT1_RGBA:
+      return SVGA3D_DEVCAP_SURFACEFMT_DXT1;
+   case PIPE_FORMAT_DXT3_RGBA:
+      return SVGA3D_DEVCAP_SURFACEFMT_DXT3;
+   case PIPE_FORMAT_DXT5_RGBA:
+      return SVGA3D_DEVCAP_SURFACEFMT_DXT5;
+
+   default:
+      return SVGA3D_DEVCAP_MAX;
+   }
+}
+
+
+static boolean
+svga_is_format_supported( struct pipe_screen *screen,
+                          enum pipe_format format, 
+                          enum pipe_texture_target target,
+                          unsigned tex_usage, 
+                          unsigned geom_flags )
+{
+   struct svga_winsys_screen *sws = svga_screen(screen)->sws;
+   SVGA3dDevCapIndex index;
+   SVGA3dDevCapResult result;
+   
+   assert(tex_usage);
+
+   /* Override host capabilities */
+   if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET) {
+      switch(format) { 
+
+      /* Often unsupported/problematic. This means we end up with the same
+       * visuals for all virtual hardware implementations.
+       */
+      case PIPE_FORMAT_A4R4G4B4_UNORM:
+      case PIPE_FORMAT_A1R5G5B5_UNORM:
+         return FALSE;
+         
+      /* Simulate ability to render into compressed textures */
+      case PIPE_FORMAT_DXT1_RGB:
+      case PIPE_FORMAT_DXT1_RGBA:
+      case PIPE_FORMAT_DXT3_RGBA:
+      case PIPE_FORMAT_DXT5_RGBA:
+         return TRUE;
+
+      default:
+         break;
+      }
+   }
+   
+   /* Try to query the host */
+   index = svga_translate_format_cap(format);
+   if( index < SVGA3D_DEVCAP_MAX && 
+       sws->get_cap(sws, index, &result) )
+   {
+      SVGA3dSurfaceFormatCaps mask;
+      
+      mask.value = 0;
+      if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET)
+         mask.offscreenRenderTarget = 1;
+      if (tex_usage & PIPE_TEXTURE_USAGE_DEPTH_STENCIL)
+         mask.zStencil = 1;
+      if (tex_usage & PIPE_TEXTURE_USAGE_SAMPLER)
+         mask.texture = 1;
+
+      if ((result.u & mask.value) == mask.value)
+         return TRUE;
+      else
+         return FALSE;
+   }
+
+   /* Use our translate functions directly rather than relying on a
+    * duplicated list of supported formats which is prone to getting
+    * out of sync:
+    */
+   if(tex_usage & (PIPE_TEXTURE_USAGE_RENDER_TARGET | PIPE_TEXTURE_USAGE_DEPTH_STENCIL))
+      return svga_translate_format_render(format) != SVGA3D_FORMAT_INVALID;
+   else
+      return svga_translate_format(format) != SVGA3D_FORMAT_INVALID;
+}
+
+
+static void
+svga_fence_reference(struct pipe_screen *screen,
+                     struct pipe_fence_handle **ptr,
+                     struct pipe_fence_handle *fence)
+{
+   struct svga_winsys_screen *sws = svga_screen(screen)->sws;
+   sws->fence_reference(sws, ptr, fence);
+}
+
+
+static int
+svga_fence_signalled(struct pipe_screen *screen,
+                     struct pipe_fence_handle *fence,
+                     unsigned flag)
+{
+   struct svga_winsys_screen *sws = svga_screen(screen)->sws;
+   return sws->fence_signalled(sws, fence, flag);
+}
+
+
+static int
+svga_fence_finish(struct pipe_screen *screen,
+                  struct pipe_fence_handle *fence,
+                  unsigned flag)
+{
+   struct svga_winsys_screen *sws = svga_screen(screen)->sws;
+   return sws->fence_finish(sws, fence, flag);
+}
+
+
+static void
+svga_destroy_screen( struct pipe_screen *screen )
+{
+   struct svga_screen *svgascreen = svga_screen(screen);
+   
+   svga_screen_cache_cleanup(svgascreen);
+
+   pipe_mutex_destroy(svgascreen->swc_mutex);
+   pipe_mutex_destroy(svgascreen->tex_mutex);
+
+   svgascreen->swc->destroy(svgascreen->swc);
+   
+   svgascreen->sws->destroy(svgascreen->sws);
+   
+   FREE(svgascreen);
+}
+
+
+/**
+ * Create a new svga_screen object
+ */
+struct pipe_screen *
+svga_screen_create(struct svga_winsys_screen *sws)
+{
+   struct svga_screen *svgascreen;
+   struct pipe_screen *screen;
+   SVGA3dDevCapResult result;
+
+#ifdef DEBUG
+   SVGA_DEBUG = debug_get_flags_option("SVGA_DEBUG", svga_debug_flags, 0 );
+#endif
+
+   svgascreen = CALLOC_STRUCT(svga_screen);
+   if (!svgascreen)
+      goto error1;
+
+   svgascreen->debug.force_level_surface_view =
+      debug_get_bool_option("SVGA_FORCE_LEVEL_SURFACE_VIEW", FALSE);
+   svgascreen->debug.force_surface_view =
+      debug_get_bool_option("SVGA_FORCE_SURFACE_VIEW", FALSE);
+   svgascreen->debug.force_sampler_view =
+      debug_get_bool_option("SVGA_FORCE_SAMPLER_VIEW", FALSE);
+   svgascreen->debug.no_surface_view =
+      debug_get_bool_option("SVGA_NO_SURFACE_VIEW", FALSE);
+   svgascreen->debug.no_sampler_view =
+      debug_get_bool_option("SVGA_NO_SAMPLER_VIEW", FALSE);
+
+   screen = &svgascreen->screen;
+
+   screen->destroy = svga_destroy_screen;
+   screen->get_name = svga_get_name;
+   screen->get_vendor = svga_get_vendor;
+   screen->get_param = svga_get_param;
+   screen->get_paramf = svga_get_paramf;
+   screen->is_format_supported = svga_is_format_supported;
+   screen->fence_reference = svga_fence_reference;
+   screen->fence_signalled = svga_fence_signalled;
+   screen->fence_finish = svga_fence_finish;
+   svgascreen->sws = sws;
+
+   svga_screen_init_texture_functions(screen);
+   svga_screen_init_buffer_functions(screen);
+
+   svgascreen->use_ps30 =
+      sws->get_cap(sws, SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION, &result) &&
+      result.u >= SVGA3DPSVERSION_30 ? TRUE : FALSE;
+
+   svgascreen->use_vs30 =
+      sws->get_cap(sws, SVGA3D_DEVCAP_VERTEX_SHADER_VERSION, &result) &&
+      result.u >= SVGA3DVSVERSION_30 ? TRUE : FALSE;
+
+#if 1
+   /* Shader model 2.0 is unsupported at the moment. */
+   if(!svgascreen->use_ps30 || !svgascreen->use_vs30)
+      goto error2;
+#else
+   if(debug_get_bool_option("SVGA_NO_SM30", FALSE))
+      svgascreen->use_vs30 = svgascreen->use_ps30 = FALSE;
+#endif
+
+   svgascreen->swc = sws->context_create(sws);
+   if(!svgascreen->swc)
+      goto error2;
+
+   pipe_mutex_init(svgascreen->tex_mutex);
+   pipe_mutex_init(svgascreen->swc_mutex);
+
+   LIST_INITHEAD(&svgascreen->cached_buffers);
+   
+   svga_screen_cache_init(svgascreen);
+
+   return screen;
+error2:
+   FREE(svgascreen);
+error1:
+   return NULL;
+}
+
+void svga_screen_flush( struct svga_screen *svgascreen, 
+                        struct pipe_fence_handle **pfence )
+{
+   struct pipe_fence_handle *fence = NULL;
+
+   SVGA_DBG(DEBUG_PERF, "%s\n", __FUNCTION__);
+   
+   pipe_mutex_lock(svgascreen->swc_mutex);
+   svgascreen->swc->flush(svgascreen->swc, &fence);
+   pipe_mutex_unlock(svgascreen->swc_mutex);
+   
+   svga_screen_cache_flush(svgascreen, fence);
+   
+   if(pfence)
+      *pfence = fence;
+   else
+      svgascreen->sws->fence_reference(svgascreen->sws, &fence, NULL);
+}
+
+struct svga_winsys_screen *
+svga_winsys_screen(struct pipe_screen *screen)
+{
+   return svga_screen(screen)->sws;
+}
+
+#ifdef DEBUG
+struct svga_screen *
+svga_screen(struct pipe_screen *screen)
+{
+   assert(screen);
+   assert(screen->destroy == svga_destroy_screen);
+   return (struct svga_screen *)screen;
+}
+#endif