More texture image changes.

1. Added ctx->Driver.ChooseTextureFormat() function.  Examines user's
   internalFormat, format, type params and returns a gl_texture_format.
2. _mesa_store_teximage[123]d() calls ctx->Driver.ChooseTextureFormat(),
   allocates storage and transfers the image into the desired format.
3. _mesa_transfer_teximage() now takes a gl_texture_format to describe
   the destination format.  Any combination of input format/type and
   output gl_texture_format is accepted.  Uses optimized _mesa_convert_-
   texsubimage[123]d() functions when possible.
3. DRI driver's TexImage[123]D functions should be a lot simpler now.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/mesa/drivers/osmesa/osmesa.c b/src/mesa/drivers/osmesa/osmesa.c
index ff84b34da40..e453f4127bc 100644
--- a/src/mesa/drivers/osmesa/osmesa.c
+++ b/src/mesa/drivers/osmesa/osmesa.c
@@ -1,4 +1,4 @@
-/* $Id: osmesa.c,v 1.52 2001/03/29 17:15:21 brianp Exp $ */
+/* $Id: osmesa.c,v 1.53 2001/04/04 21:54:21 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -46,6 +46,7 @@
 #include "mem.h"
 #include "mmath.h"
 #include "mtypes.h"
+#include "texformat.h"
 #include "texstore.h"
 #include "array_cache/acache.h"
 #include "swrast/swrast.h"
@@ -1786,6 +1787,7 @@ static void osmesa_update_state( GLcontext *ctx, GLuint new_state )
    ctx->Driver.DrawPixels = _swrast_DrawPixels;
    ctx->Driver.ReadPixels = _swrast_ReadPixels;
 
+   ctx->Driver.ChooseTextureFormat = _mesa_choose_tex_format;
    ctx->Driver.TexImage1D = _mesa_store_teximage1d;
    ctx->Driver.TexImage2D = _mesa_store_teximage2d;
    ctx->Driver.TexImage3D = _mesa_store_teximage3d;