Mesa (master): mesa: restructure error checking in _mesa_FramebufferTexture1D/2DEXT()

[Brian Paul]

Module: Mesa
Branch: master
Commit: 352cab498a6210e1fdd57d6be2a30d33024ef37f
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=352cab498a6210e1fdd57d6be2a30d33024ef37f

Author: Brian Paul <brianp at vmware.com>
Date:   Thu Aug 18 14:35:27 2011 -0600

mesa: restructure error checking in _mesa_FramebufferTexture1D/2DEXT()

In anticipation of adding more texture targets.

Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>

---

 src/mesa/main/fbobject.c |   56 +++++++++++++++++++++++++++++++++++++---------
 1 files changed, 45 insertions(+), 11 deletions(-)

diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
index 7646f9b..e25ec8c 100644
--- a/src/mesa/main/fbobject.c
+++ b/src/mesa/main/fbobject.c
@@ -1984,10 +1984,23 @@ _mesa_FramebufferTexture1DEXT(GLenum target, GLenum attachment,
 {
    GET_CURRENT_CONTEXT(ctx);
 
-   if ((texture != 0) && (textarget != GL_TEXTURE_1D)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glFramebufferTexture1DEXT(textarget)");
-      return;
+   if (texture != 0) {
+      GLboolean error;
+
+      switch (textarget) {
+      case GL_TEXTURE_1D:
+         error = GL_FALSE;
+         break;
+      default:
+         error = GL_TRUE;
+      }
+
+      if (error) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glFramebufferTexture1DEXT(textarget=%s)",
+                     _mesa_lookup_enum_by_nr(textarget));
+         return;
+      }
    }
 
    framebuffer_texture(ctx, "1D", target, attachment, textarget, texture,
@@ -2001,13 +2014,34 @@ _mesa_FramebufferTexture2DEXT(GLenum target, GLenum attachment,
 {
    GET_CURRENT_CONTEXT(ctx);
 
-   if ((texture != 0) &&
-       (textarget != GL_TEXTURE_2D) &&
-       (textarget != GL_TEXTURE_RECTANGLE_ARB) &&
-       (!is_cube_face(textarget))) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glFramebufferTexture2DEXT(textarget=0x%x)", textarget);
-      return;
+   if (texture != 0) {
+      GLboolean error;
+
+      switch (textarget) {
+      case GL_TEXTURE_2D:
+         error = GL_FALSE;
+         break;
+      case GL_TEXTURE_RECTANGLE:
+         error = !ctx->Extensions.NV_texture_rectangle;
+         break;
+      case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+      case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+      case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+      case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+      case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+      case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+         error = !ctx->Extensions.ARB_texture_cube_map;
+         break;
+      default:
+         error = GL_FALSE;
+      }
+
+      if (error) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glFramebufferTexture2DEXT(textarget=%s)",
+                     _mesa_lookup_enum_by_nr(textarget));
+         return;
+      }
    }
 
    framebuffer_texture(ctx, "2D", target, attachment, textarget, texture,