softpipe: rework to use the llvmpipe winsys

Promote the llvmpipe winsys more or less unchanged to
state_trackers/sw_winsys.h.

Some minor breakages:
  - softpipe::texture_blanket is broken, but scheduled for removal anyway.
  - haven't fixed up g3vdl yet.

3 files changed, 23 insertions, 375 deletions

diff --git a/src/gallium/winsys/gdi/SConscript b/src/gallium/winsys/gdi/SConscript
index 4cbc86f331..4b32aa27e1 100644
--- a/src/gallium/winsys/gdi/SConscript
+++ b/src/gallium/winsys/gdi/SConscript
@@ -18,7 +18,7 @@ if env['platform'] == 'windows':
         'ws2_32',
     ])
 
-    sources = []
+    sources = ['gdi_sw_winsys.c']
     drivers = []
 
     if 'softpipe' in env['drivers']:
diff --git a/src/gallium/winsys/gdi/gdi_llvmpipe_winsys.c b/src/gallium/winsys/gdi/gdi_llvmpipe_winsys.c
index a9fa03b8e5..3d317c70dd 100644
--- a/src/gallium/winsys/gdi/gdi_llvmpipe_winsys.c
+++ b/src/gallium/winsys/gdi/gdi_llvmpipe_winsys.c
@@ -36,153 +36,8 @@
 
 #include <windows.h>
 
-#include "pipe/p_format.h"
-#include "pipe/p_context.h"
-#include "util/u_inlines.h"
-#include "util/u_format.h"
-#include "util/u_math.h"
-#include "util/u_memory.h"
-#include "llvmpipe/lp_winsys.h"
+#include "gdi_winsys.h"
 #include "llvmpipe/lp_texture.h"
-#include "stw_winsys.h"
-
-
-struct gdi_llvmpipe_displaytarget
-{
-   enum pipe_format format;
-   unsigned width;
-   unsigned height;
-   unsigned stride;
-
-   unsigned size;
-
-   void *data;
-
-   BITMAPINFO bmi;
-};
-
-
-/** Cast wrapper */
-static INLINE struct gdi_llvmpipe_displaytarget *
-gdi_llvmpipe_displaytarget( struct llvmpipe_displaytarget *buf )
-{
-   return (struct gdi_llvmpipe_displaytarget *)buf;
-}
-
-
-static boolean
-gdi_llvmpipe_is_displaytarget_format_supported( struct llvmpipe_winsys *ws,
-                                                enum pipe_format format )
-{
-   switch(format) {
-   case PIPE_FORMAT_B8G8R8X8_UNORM:
-   case PIPE_FORMAT_B8G8R8A8_UNORM:
-      return TRUE;
-
-   /* TODO: Support other formats possible with BMPs, as described in 
-    * http://msdn.microsoft.com/en-us/library/dd183376(VS.85).aspx */
-      
-   default:
-      return FALSE;
-   }
-}
-
-
-static void *
-gdi_llvmpipe_displaytarget_map(struct llvmpipe_winsys *ws,
-                               struct llvmpipe_displaytarget *dt,
-                               unsigned flags )
-{
-   struct gdi_llvmpipe_displaytarget *gdt = gdi_llvmpipe_displaytarget(dt);
-
-   return gdt->data;
-}
-
-
-static void
-gdi_llvmpipe_displaytarget_unmap(struct llvmpipe_winsys *ws,
-                                 struct llvmpipe_displaytarget *dt )
-{
-
-}
-
-
-static void
-gdi_llvmpipe_displaytarget_destroy(struct llvmpipe_winsys *winsys,
-                                   struct llvmpipe_displaytarget *dt)
-{
-   struct gdi_llvmpipe_displaytarget *gdt = gdi_llvmpipe_displaytarget(dt);
-
-   align_free(gdt->data);
-   FREE(gdt);
-}
-
-
-static struct llvmpipe_displaytarget *
-gdi_llvmpipe_displaytarget_create(struct llvmpipe_winsys *winsys,
-                                  enum pipe_format format,
-                                  unsigned width, unsigned height,
-                                  unsigned alignment,
-                                  unsigned *stride)
-{
-   struct gdi_llvmpipe_displaytarget *gdt;
-   unsigned cpp;
-   unsigned bpp;
-   
-   gdt = CALLOC_STRUCT(gdi_llvmpipe_displaytarget);
-   if(!gdt)
-      goto no_gdt;
-
-   gdt->format = format;
-   gdt->width = width;
-   gdt->height = height;
-
-   bpp = util_format_get_blocksizebits(format);
-   cpp = util_format_get_blocksize(format);
-   
-   gdt->stride = align(width * cpp, alignment);
-   gdt->size = gdt->stride * height;
-   
-   gdt->data = align_malloc(gdt->size, alignment);
-   if(!gdt->data)
-      goto no_data;
-
-   gdt->bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
-   gdt->bmi.bmiHeader.biWidth = gdt->stride / cpp;
-   gdt->bmi.bmiHeader.biHeight= -(long)height;
-   gdt->bmi.bmiHeader.biPlanes = 1;
-   gdt->bmi.bmiHeader.biBitCount = bpp;
-   gdt->bmi.bmiHeader.biCompression = BI_RGB;
-   gdt->bmi.bmiHeader.biSizeImage = 0;
-   gdt->bmi.bmiHeader.biXPelsPerMeter = 0;
-   gdt->bmi.bmiHeader.biYPelsPerMeter = 0;
-   gdt->bmi.bmiHeader.biClrUsed = 0;
-   gdt->bmi.bmiHeader.biClrImportant = 0;
-
-   *stride = gdt->stride;
-   return (struct llvmpipe_displaytarget *)gdt;
-
-no_data:
-   FREE(gdt);
-no_gdt:
-   return NULL;
-}
-
-
-static void
-gdi_llvmpipe_displaytarget_display(struct llvmpipe_winsys *winsys, 
-                                   struct llvmpipe_displaytarget *dt,
-                                   void *context_private)
-{
-   assert(0);
-}
-
-
-static void
-gdi_llvmpipe_destroy(struct llvmpipe_winsys *winsys)
-{
-   FREE(winsys);
-}
 
 
 static struct pipe_screen *
@@ -191,18 +46,10 @@ gdi_llvmpipe_screen_create(void)
    static struct llvmpipe_winsys *winsys;
    struct pipe_screen *screen;
 
-   winsys = CALLOC_STRUCT(llvmpipe_winsys);
+   winsys = gdi_create_sw_winsys();
    if(!winsys)
       goto no_winsys;
 
-   winsys->destroy = gdi_llvmpipe_destroy;
-   winsys->is_displaytarget_format_supported = gdi_llvmpipe_is_displaytarget_format_supported;
-   winsys->displaytarget_create = gdi_llvmpipe_displaytarget_create;
-   winsys->displaytarget_map = gdi_llvmpipe_displaytarget_map;
-   winsys->displaytarget_unmap = gdi_llvmpipe_displaytarget_unmap;
-   winsys->displaytarget_display = gdi_llvmpipe_displaytarget_display;
-   winsys->displaytarget_destroy = gdi_llvmpipe_displaytarget_destroy;
-
    screen = llvmpipe_create_screen(winsys);
    if(!screen)
       goto no_screen;
diff --git a/src/gallium/winsys/gdi/gdi_softpipe_winsys.c b/src/gallium/winsys/gdi/gdi_softpipe_winsys.c
index 71360e55aa..56e84fd066 100644
--- a/src/gallium/winsys/gdi/gdi_softpipe_winsys.c
+++ b/src/gallium/winsys/gdi/gdi_softpipe_winsys.c
@@ -1,6 +1,6 @@
 /**************************************************************************
  *
- * Copyright 2008 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * Copyright 2009 VMware, Inc.
  * All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -28,257 +28,58 @@
 
 /**
  * @file
- * Softpipe support.
+ * LLVMpipe support.
  *
- * @author Keith Whitwell
- * @author Brian Paul
- * @author Jose Fonseca
+ * @author Jose Fonseca <jfonseca@vmware.com>
  */
 
 
 #include <windows.h>
 
-#include "util/u_simple_screen.h"
-#include "pipe/p_format.h"
-#include "pipe/p_context.h"
-#include "util/u_inlines.h"
-#include "util/u_format.h"
-#include "util/u_math.h"
-#include "util/u_memory.h"
-#include "softpipe/sp_winsys.h"
+#include "gdi_winsys.h"
 #include "softpipe/sp_texture.h"
-#include "stw_winsys.h"
-
-
-struct gdi_softpipe_buffer
-{
-   struct pipe_buffer base;
-   boolean userBuffer;  /** Is this a user-space buffer? */
-   void *data;
-   void *mapped;
-};
-
-
-/** Cast wrapper */
-static INLINE struct gdi_softpipe_buffer *
-gdi_softpipe_buffer( struct pipe_buffer *buf )
-{
-   return (struct gdi_softpipe_buffer *)buf;
-}
-
-
-static void *
-gdi_softpipe_buffer_map(struct pipe_winsys *winsys,
-                        struct pipe_buffer *buf,
-                        unsigned flags)
-{
-   struct gdi_softpipe_buffer *gdi_softpipe_buf = gdi_softpipe_buffer(buf);
-   gdi_softpipe_buf->mapped = gdi_softpipe_buf->data;
-   return gdi_softpipe_buf->mapped;
-}
-
-
-static void
-gdi_softpipe_buffer_unmap(struct pipe_winsys *winsys,
-                          struct pipe_buffer *buf)
-{
-   struct gdi_softpipe_buffer *gdi_softpipe_buf = gdi_softpipe_buffer(buf);
-   gdi_softpipe_buf->mapped = NULL;
-}
-
-
-static void
-gdi_softpipe_buffer_destroy(struct pipe_buffer *buf)
-{
-   struct gdi_softpipe_buffer *oldBuf = gdi_softpipe_buffer(buf);
-
-   if (oldBuf->data) {
-      if (!oldBuf->userBuffer)
-         align_free(oldBuf->data);
-
-      oldBuf->data = NULL;
-   }
-
-   FREE(oldBuf);
-}
-
-
-static const char *
-gdi_softpipe_get_name(struct pipe_winsys *winsys)
-{
-   return "softpipe";
-}
-
-
-static struct pipe_buffer *
-gdi_softpipe_buffer_create(struct pipe_winsys *winsys,
-                           unsigned alignment,
-                           unsigned usage,
-                           unsigned size)
-{
-   struct gdi_softpipe_buffer *buffer = CALLOC_STRUCT(gdi_softpipe_buffer);
-
-   pipe_reference_init(&buffer->base.reference, 1);
-   buffer->base.alignment = alignment;
-   buffer->base.usage = usage;
-   buffer->base.size = size;
-
-   buffer->data = align_malloc(size, alignment);
-
-   return &buffer->base;
-}
-
-
-/**
- * Create buffer which wraps user-space data.
- */
-static struct pipe_buffer *
-gdi_softpipe_user_buffer_create(struct pipe_winsys *winsys,
-                               void *ptr,
-                               unsigned bytes)
-{
-   struct gdi_softpipe_buffer *buffer;
-
-   buffer = CALLOC_STRUCT(gdi_softpipe_buffer);
-   if(!buffer)
-      return NULL;
-
-   pipe_reference_init(&buffer->base.reference, 1);
-   buffer->base.size = bytes;
-   buffer->userBuffer = TRUE;
-   buffer->data = ptr;
-
-   return &buffer->base;
-}
-
-
-static struct pipe_buffer *
-gdi_softpipe_surface_buffer_create(struct pipe_winsys *winsys,
-                                   unsigned width, unsigned height,
-                                   enum pipe_format format,
-                                   unsigned usage,
-                                   unsigned tex_usage,
-                                   unsigned *stride)
-{
-   const unsigned alignment = 64;
-   unsigned nblocksy;
-
-   nblocksy = util_format_get_nblocksy(format, height);
-   *stride = align(util_format_get_stride(format, width), alignment);
-
-   return winsys->buffer_create(winsys, alignment,
-                                usage,
-                                *stride * nblocksy);
-}
-
-
-static void
-gdi_softpipe_dummy_flush_frontbuffer(struct pipe_winsys *winsys,
-                                     struct pipe_surface *surface,
-                                     void *context_private)
-{
-   assert(0);
-}
-
-
-static void
-gdi_softpipe_fence_reference(struct pipe_winsys *winsys,
-                             struct pipe_fence_handle **ptr,
-                             struct pipe_fence_handle *fence)
-{
-}
-
-
-static int
-gdi_softpipe_fence_signalled(struct pipe_winsys *winsys,
-                             struct pipe_fence_handle *fence,
-                             unsigned flag)
-{
-   return 0;
-}
-
-
-static int
-gdi_softpipe_fence_finish(struct pipe_winsys *winsys,
-                          struct pipe_fence_handle *fence,
-                          unsigned flag)
-{
-   return 0;
-}
-
-
-static void
-gdi_softpipe_destroy(struct pipe_winsys *winsys)
-{
-   FREE(winsys);
-}
 
 
 static struct pipe_screen *
 gdi_softpipe_screen_create(void)
 {
-   static struct pipe_winsys *winsys;
+   static struct softpipe_winsys *winsys;
    struct pipe_screen *screen;
 
-   winsys = CALLOC_STRUCT(pipe_winsys);
+   winsys = gdi_create_sw_winsys();
    if(!winsys)
-      return NULL;
-
-   winsys->destroy = gdi_softpipe_destroy;
-
-   winsys->buffer_create = gdi_softpipe_buffer_create;
-   winsys->user_buffer_create = gdi_softpipe_user_buffer_create;
-   winsys->buffer_map = gdi_softpipe_buffer_map;
-   winsys->buffer_unmap = gdi_softpipe_buffer_unmap;
-   winsys->buffer_destroy = gdi_softpipe_buffer_destroy;
-
-   winsys->surface_buffer_create = gdi_softpipe_surface_buffer_create;
-
-   winsys->fence_reference = gdi_softpipe_fence_reference;
-   winsys->fence_signalled = gdi_softpipe_fence_signalled;
-   winsys->fence_finish = gdi_softpipe_fence_finish;
-
-   winsys->flush_frontbuffer = gdi_softpipe_dummy_flush_frontbuffer;
-   winsys->get_name = gdi_softpipe_get_name;
+      goto no_winsys;
 
    screen = softpipe_create_screen(winsys);
    if(!screen)
-      gdi_softpipe_destroy(winsys);
+      goto no_screen;
 
    return screen;
+   
+no_screen:
+   FREE(winsys);
+no_winsys:
+   return NULL;
 }
 
 
+
+
 static void
 gdi_softpipe_present(struct pipe_screen *screen,
                      struct pipe_surface *surface,
                      HDC hDC)
 {
     struct softpipe_texture *texture;
-    struct gdi_softpipe_buffer *buffer;
-    BITMAPINFO bmi;
+    struct gdi_softpipe_displaytarget *gdt;
 
     texture = softpipe_texture(surface->texture);
-                                               
-    buffer = gdi_softpipe_buffer(texture->buffer);
-
-    memset(&bmi, 0, sizeof(BITMAPINFO));
-    bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
-    bmi.bmiHeader.biWidth = texture->stride[surface->level] / util_format_get_blocksize(surface->format);
-    bmi.bmiHeader.biHeight= -(long)surface->height;
-    bmi.bmiHeader.biPlanes = 1;
-    bmi.bmiHeader.biBitCount = util_format_get_blocksizebits(surface->format);
-    bmi.bmiHeader.biCompression = BI_RGB;
-    bmi.bmiHeader.biSizeImage = 0;
-    bmi.bmiHeader.biXPelsPerMeter = 0;
-    bmi.bmiHeader.biYPelsPerMeter = 0;
-    bmi.bmiHeader.biClrUsed = 0;
-    bmi.bmiHeader.biClrImportant = 0;
+    gdt = gdi_softpipe_displaytarget(texture->dt);
 
     StretchDIBits(hDC,
-                  0, 0, surface->width, surface->height,
-                  0, 0, surface->width, surface->height,
-                  buffer->data, &bmi, 0, SRCCOPY);
+                  0, 0, gdt->width, gdt->height,
+                  0, 0, gdt->width, gdt->height,
+                  gdt->data, &gdt->bmi, 0, SRCCOPY);
 }