1 files changed, 169 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_fs_sse.c b/src/gallium/drivers/llvmpipe/lp_fs_sse.c
new file mode 100644
index 00000000000..61c40dd4b39
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_fs_sse.c
@@ -0,0 +1,169 @@
+/**************************************************************************
+ * 
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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, sub license, 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
+ * 
+ **************************************************************************/
+
+/**
+ * Execute fragment shader using runtime SSE code generation.
+ */
+
+#include "lp_context.h"
+#include "lp_state.h"
+#include "lp_fs.h"
+#include "lp_quad.h"
+
+#include "pipe/p_state.h"
+#include "pipe/p_defines.h"
+#include "util/u_memory.h"
+#include "tgsi/tgsi_exec.h"
+#include "tgsi/tgsi_sse2.h"
+
+
+#if defined(PIPE_ARCH_X86)
+
+#include "rtasm/rtasm_x86sse.h"
+
+
+
+/**
+ * Subclass of lp_fragment_shader
+ */
+struct lp_sse_fragment_shader
+{
+   struct lp_fragment_shader base;
+   struct x86_function sse2_program;
+   tgsi_sse2_fs_function func;
+   float immediates[TGSI_EXEC_NUM_IMMEDIATES][4];
+};
+
+
+/** cast wrapper */
+static INLINE struct lp_sse_fragment_shader *
+lp_sse_fragment_shader(const struct lp_fragment_shader *base)
+{
+   return (struct lp_sse_fragment_shader *) base;
+}
+
+
+static void
+fs_sse_prepare( const struct lp_fragment_shader *base,
+		struct tgsi_exec_machine *machine,
+		struct tgsi_sampler **samplers )
+{
+   machine->Samplers = samplers;
+}
+
+
+/* TODO: codegenerate the whole run function, skip this wrapper.
+ * TODO: break dependency on tgsi_exec_machine struct
+ * TODO: push Position calculation into the generated shader
+ * TODO: process >1 quad at a time
+ */
+static unsigned 
+fs_sse_run( const struct lp_fragment_shader *base,
+	    struct tgsi_exec_machine *machine,
+	    struct quad_header *quad )
+{
+   struct lp_sse_fragment_shader *shader = lp_sse_fragment_shader(base);
+
+   /* Compute X, Y, Z, W vals for this quad -- place in temp[0] for now */
+   lp_setup_pos_vector(quad->posCoef, 
+		       (float)quad->input.x0, (float)quad->input.y0, 
+		       machine->Temps);
+
+   /* init kill mask */
+   tgsi_set_kill_mask(machine, 0x0);
+   tgsi_set_exec_mask(machine, 1, 1, 1, 1);
+
+   shader->func( machine,
+		 machine->Consts,
+                 (const float (*)[4])shader->immediates,
+		 machine->InterpCoefs
+		 //	 , &machine->QuadPos
+      );
+
+   return ~(machine->Temps[TGSI_EXEC_TEMP_KILMASK_I].xyzw[TGSI_EXEC_TEMP_KILMASK_C].u[0]);
+}
+
+
+static void 
+fs_sse_delete( struct lp_fragment_shader *base )
+{
+   struct lp_sse_fragment_shader *shader = lp_sse_fragment_shader(base);
+
+   x86_release_func( &shader->sse2_program );
+   FREE(shader);
+}
+
+
+struct lp_fragment_shader *
+llvmpipe_create_fs_sse(struct llvmpipe_context *llvmpipe,
+		       const struct pipe_shader_state *templ)
+{
+   struct lp_sse_fragment_shader *shader;
+
+   if (!llvmpipe->use_sse)
+      return NULL;
+
+   shader = CALLOC_STRUCT(lp_sse_fragment_shader);
+   if (!shader)
+      return NULL;
+
+   x86_init_func( &shader->sse2_program );
+   
+   if (!tgsi_emit_sse2( templ->tokens, &shader->sse2_program,
+                        shader->immediates, FALSE )) {
+      FREE(shader);
+      return NULL;
+   }
+
+   shader->func = (tgsi_sse2_fs_function) x86_get_func( &shader->sse2_program );
+   if (!shader->func) {
+      x86_release_func( &shader->sse2_program );
+      FREE(shader);
+      return NULL;
+   }
+
+   shader->base.shader.tokens = NULL; /* don't hold reference to templ->tokens */
+   shader->base.prepare = fs_sse_prepare;
+   shader->base.run = fs_sse_run;
+   shader->base.delete = fs_sse_delete;
+
+   return &shader->base;
+}
+
+
+#else
+
+/* Maybe put this variant in the header file.
+ */
+struct lp_fragment_shader *
+llvmpipe_create_fs_sse(struct llvmpipe_context *llvmpipe,
+		       const struct pipe_shader_state *templ)
+{
+   return NULL;
+}
+
+#endif