wgl: Eliminate the shared layer; implement WGL API on top of the ICD callbacks.

While the WGL API has been stale for decades now, the ICD interface has
been updated with new Windows versions, so it is much easier to define
everything in terms of the ICD interfaces, which is pretty much what
Microsoft's opengl32.dll does anyway.

1 files changed, 21 insertions, 42 deletions

diff --git a/src/gallium/state_trackers/wgl/stw_wgl.c b/src/gallium/state_trackers/wgl/stw_wgl.c
index d4b2f51f4c..bb199fdd25 100644
--- a/src/gallium/state_trackers/wgl/stw_wgl.c
+++ b/src/gallium/state_trackers/wgl/stw_wgl.c
@@ -28,7 +28,9 @@
 #include <windows.h>
 
 #include "util/u_debug.h"
-#include "stw_public.h"
+#include "stw_icd.h"
+#include "stw_context.h"
+#include "stw_pixelformat.h"
 #include "stw_wgl.h"
 
 
@@ -38,16 +40,16 @@ wglCopyContext(
    HGLRC hglrcDst,
    UINT mask )
 {
-   return stw_copy_context( (UINT_PTR)hglrcSrc, 
-                            (UINT_PTR)hglrcDst, 
-                            mask );
+   return DrvCopyContext( (DHGLRC)(UINT_PTR)hglrcSrc,
+                          (DHGLRC)(UINT_PTR)hglrcDst,
+                          mask );
 }
 
 WINGDIAPI HGLRC APIENTRY
 wglCreateContext(
    HDC hdc )
 {
-   return wglCreateLayerContext(hdc, 0);
+   return (HGLRC) DrvCreateContext(hdc);
 }
 
 WINGDIAPI HGLRC APIENTRY
@@ -55,21 +57,21 @@ wglCreateLayerContext(
    HDC hdc,
    int iLayerPlane )
 {
-   return (HGLRC) stw_create_layer_context( hdc, iLayerPlane );
+   return (HGLRC) DrvCreateLayerContext( hdc, iLayerPlane );
 }
 
 WINGDIAPI BOOL APIENTRY
 wglDeleteContext(
    HGLRC hglrc )
 {
-   return stw_delete_context( (UINT_PTR)hglrc );
+   return DrvDeleteContext((DHGLRC)(UINT_PTR)hglrc );
 }
 
 
 WINGDIAPI HGLRC APIENTRY
 wglGetCurrentContext( VOID )
 {
-   return (HGLRC)stw_get_current_context();
+   return (HGLRC)(UINT_PTR)stw_get_current_context();
 }
 
 WINGDIAPI HDC APIENTRY
@@ -83,7 +85,7 @@ wglMakeCurrent(
    HDC hdc,
    HGLRC hglrc )
 {
-   return stw_make_current( hdc, (UINT_PTR)hglrc );
+   return DrvSetContext( hdc, (DHGLRC)(UINT_PTR)hglrc, NULL ) ? TRUE : FALSE;
 }
 
 
@@ -91,7 +93,7 @@ WINGDIAPI BOOL APIENTRY
 wglSwapBuffers(
    HDC hdc )
 {
-   return stw_swap_buffers( hdc );
+   return DrvSwapBuffers( hdc );
 }
 
 
@@ -100,14 +102,14 @@ wglSwapLayerBuffers(
    HDC hdc,
    UINT fuPlanes )
 {
-   return stw_swap_layer_buffers( hdc, fuPlanes );
+   return DrvSwapLayerBuffers( hdc, fuPlanes );
 }
 
 WINGDIAPI PROC APIENTRY
 wglGetProcAddress(
     LPCSTR lpszProc )
 {
-   return stw_get_proc_address( lpszProc );
+   return DrvGetProcAddress( lpszProc );
 }
 
 
@@ -141,7 +143,7 @@ wglDescribePixelFormat(
    UINT nBytes,
    LPPIXELFORMATDESCRIPTOR ppfd )
 {
-   return stw_pixelformat_describe( hdc, iPixelFormat, nBytes, ppfd );
+   return DrvDescribePixelFormat( hdc, iPixelFormat, nBytes, ppfd );
 }
 
 WINGDIAPI int APIENTRY
@@ -160,7 +162,7 @@ wglSetPixelFormat(
    if (ppfd->nSize != sizeof( PIXELFORMATDESCRIPTOR ))
       return FALSE;
 
-   return stw_pixelformat_set( hdc, iPixelFormat );
+   return DrvSetPixelFormat( hdc, iPixelFormat );
 }
 
 
@@ -186,7 +188,8 @@ wglShareLists(
    HGLRC hglrc1,
    HGLRC hglrc2 )
 {
-   return stw_share_lists( (UINT_PTR)hglrc1, (UINT_PTR)hglrc2);;
+   return DrvShareLists((DHGLRC)(UINT_PTR)hglrc1,
+                        (DHGLRC)(UINT_PTR)hglrc2);
 }
 
 WINGDIAPI BOOL APIENTRY
@@ -264,15 +267,7 @@ wglDescribeLayerPlane(
    UINT nBytes,
    LPLAYERPLANEDESCRIPTOR plpd )
 {
-   (void) hdc;
-   (void) iPixelFormat;
-   (void) iLayerPlane;
-   (void) nBytes;
-   (void) plpd;
-
-   assert( 0 );
-
-   return FALSE;
+   return DrvDescribeLayerPlane(hdc, iPixelFormat, iLayerPlane, nBytes, plpd);
 }
 
 WINGDIAPI int APIENTRY
@@ -283,15 +278,7 @@ wglSetLayerPaletteEntries(
    int cEntries,
    CONST COLORREF *pcr )
 {
-   (void) hdc;
-   (void) iLayerPlane;
-   (void) iStart;
-   (void) cEntries;
-   (void) pcr;
-
-   assert( 0 );
-
-   return 0;
+   return DrvSetLayerPaletteEntries(hdc, iLayerPlane, iStart, cEntries, pcr);
 }
 
 WINGDIAPI int APIENTRY
@@ -302,15 +289,7 @@ wglGetLayerPaletteEntries(
    int cEntries,
    COLORREF *pcr )
 {
-   (void) hdc;
-   (void) iLayerPlane;
-   (void) iStart;
-   (void) cEntries;
-   (void) pcr;
-
-   assert( 0 );
-
-   return 0;
+   return DrvGetLayerPaletteEntries(hdc, iLayerPlane, iStart, cEntries, pcr);
 }
 
 WINGDIAPI BOOL APIENTRY