svga: Add svga driver

1 files changed, 189 insertions, 0 deletions

diff --git a/src/gallium/drivers/svga/svga_pipe_vs.c b/src/gallium/drivers/svga/svga_pipe_vs.c
new file mode 100644
index 00000000000..e5ffe668c35
--- /dev/null
+++ b/src/gallium/drivers/svga/svga_pipe_vs.c
@@ -0,0 +1,189 @@
+/**********************************************************
+ * 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 "draw/draw_context.h"
+#include "pipe/p_inlines.h"
+#include "util/u_math.h"
+#include "util/u_memory.h"
+#include "tgsi/tgsi_parse.h"
+#include "tgsi/tgsi_text.h"
+
+#include "svga_screen.h"
+#include "svga_context.h"
+#include "svga_state.h"
+#include "svga_tgsi.h"
+#include "svga_hw_reg.h"
+#include "svga_cmd.h"
+#include "svga_debug.h"
+
+
+static const struct tgsi_token *substitute_vs( 
+   unsigned shader_id,
+   const struct tgsi_token *old_tokens )
+{
+#if 0
+   if (shader_id == 12) {
+   static struct tgsi_token tokens[300];
+
+   const char *text = 
+      "VERT1.1\n"
+      "DCL IN[0]\n"
+      "DCL IN[1]\n"
+      "DCL IN[2]\n"
+      "DCL OUT[0], POSITION\n"
+      "DCL TEMP[0..4]\n"
+      "IMM FLT32 {     1.0000,     1.0000,     1.0000,     1.0000 }\n"
+      "IMM FLT32 {     0.45,     1.0000,     1.0000,     1.0000 }\n"
+      "IMM FLT32 { 1.297863, 0.039245, 0.035993, 0.035976}\n"
+      "IMM FLT32 { -0.019398, 1.696131, -0.202151, -0.202050  }\n"
+      "IMM FLT32 { 0.051711, -0.348713, -0.979204, -0.978714  }\n"
+      "IMM FLT32 { 0.000000, 0.000003, 139.491577, 141.421356 }\n"
+      "DCL CONST[0..7]\n"
+      "DCL CONST[9..16]\n"
+      "  MOV TEMP[2], IMM[0]\n"
+
+      "  MOV TEMP[2].xyz, IN[2]\n"
+      "  MOV TEMP[2].xyz, IN[0]\n"
+      "  MOV TEMP[2].xyz, IN[1]\n"
+
+      "  MUL TEMP[1], IMM[3], TEMP[2].yyyy\n"
+      "  MAD TEMP[3], IMM[2],  TEMP[2].xxxx, TEMP[1]\n"
+      "  MAD TEMP[1], IMM[4], TEMP[2].zzzz, TEMP[3]\n"
+      "  MAD TEMP[4], IMM[5], TEMP[2].wwww, TEMP[1]\n"
+
+      "  MOV OUT[0], TEMP[4]\n"
+      "  END\n";
+
+   if (!tgsi_text_translate( text,
+                             tokens,
+                             Elements(tokens) ))
+   {
+      assert(0);
+      return NULL;
+   }
+
+   return tokens;
+   }
+#endif
+
+   return old_tokens;
+}
+
+
+/***********************************************************************
+ * Vertex shaders 
+ */
+
+static void *
+svga_create_vs_state(struct pipe_context *pipe,
+                     const struct pipe_shader_state *templ)
+{
+   struct svga_context *svga = svga_context(pipe);
+   struct svga_screen *svgascreen = svga_screen(pipe->screen);
+   struct svga_vertex_shader *vs = CALLOC_STRUCT(svga_vertex_shader);
+   if (!vs)
+      return NULL;
+
+   /* substitute a debug shader?
+    */
+   vs->base.tokens = tgsi_dup_tokens(substitute_vs(svga->debug.shader_id,
+                                                   templ->tokens));
+
+
+   /* Collect basic info that we'll need later:
+    */
+   tgsi_scan_shader(vs->base.tokens, &vs->base.info);
+
+   {
+      /* Need to do construct a new template in case we substitued a
+       * debug shader.
+       */
+      struct pipe_shader_state tmp2 = *templ;
+      tmp2.tokens = vs->base.tokens;
+      vs->draw_shader = draw_create_vertex_shader(svga->swtnl.draw, &tmp2);
+   }
+
+   vs->base.id = svga->debug.shader_id++;
+   vs->base.use_sm30 = svgascreen->use_vs30;
+
+   if (SVGA_DEBUG & DEBUG_TGSI || 0) {
+      debug_printf("%s id: %u, inputs: %u, outputs: %u\n",
+                   __FUNCTION__, vs->base.id,
+                   vs->base.info.num_inputs, vs->base.info.num_outputs);
+   }
+
+   return vs;
+}
+
+static void svga_bind_vs_state(struct pipe_context *pipe, void *shader)
+{
+   struct svga_vertex_shader *vs = (struct svga_vertex_shader *)shader;
+   struct svga_context *svga = svga_context(pipe);
+
+   svga->curr.vs = vs;
+   svga->dirty |= SVGA_NEW_VS;
+}
+
+
+static void svga_delete_vs_state(struct pipe_context *pipe, void *shader)
+{
+   struct svga_context *svga = svga_context(pipe);
+   struct svga_vertex_shader *vs = (struct svga_vertex_shader *)shader;
+   struct svga_shader_result *result, *tmp;
+   enum pipe_error ret;
+
+   svga_hwtnl_flush_retry( svga );
+
+   draw_delete_vertex_shader(svga->swtnl.draw, vs->draw_shader);
+   
+   for (result = vs->base.results; result; result = tmp ) {
+      tmp = result->next;
+
+      ret = SVGA3D_DestroyShader(svga->swc, 
+                                 result->id,
+                                 SVGA3D_SHADERTYPE_VS );
+      if(ret != PIPE_OK) {
+         svga_context_flush(svga, NULL);
+         ret = SVGA3D_DestroyShader(svga->swc, 
+                                    result->id,
+                                    SVGA3D_SHADERTYPE_VS );
+         assert(ret == PIPE_OK);
+      }
+
+      svga_destroy_shader_result( result );
+   }
+
+   FREE((void *)vs->base.tokens);
+   FREE(vs);
+}
+
+
+void svga_init_vs_functions( struct svga_context *svga )
+{
+   svga->pipe.create_vs_state = svga_create_vs_state;
+   svga->pipe.bind_vs_state = svga_bind_vs_state;
+   svga->pipe.delete_vs_state = svga_delete_vs_state;
+}
+