mesa: initial ARB_depth_buffer_float support

Using GL_NONE as DataType of Z32_FLOAT_X24S8, not sure what I should put there.
The spec says the type is n/a.

Reviewed-by: Kenneth Graunke <[email protected]>

1 files changed, 19 insertions, 0 deletions

diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
index 8cc3fd49a34..d094dd35a69 100644
--- a/src/mesa/main/fbobject.c
+++ b/src/mesa/main/fbobject.c
@@ -1131,6 +1131,16 @@ _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
          return GL_DEPTH_STENCIL_EXT;
       else
          return 0;
+   case GL_DEPTH_COMPONENT32F:
+      if (ctx->Extensions.ARB_depth_buffer_float)
+         return GL_DEPTH_COMPONENT;
+      else
+         return 0;
+   case GL_DEPTH32F_STENCIL8:
+      if (ctx->Extensions.ARB_depth_buffer_float)
+         return GL_DEPTH_STENCIL;
+      else
+         return 0;
    case GL_RED:
    case GL_R8:
    case GL_R16:
@@ -2266,6 +2276,15 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
             /* special cases */
             *params = GL_INDEX;
          }
+         else if (format == MESA_FORMAT_Z32_FLOAT_X24S8) {
+            /* depends on the attachment parameter */
+            if (attachment == GL_STENCIL_ATTACHMENT) {
+               *params = GL_INDEX;
+            }
+            else {
+               *params = GL_FLOAT;
+            }
+         }
          else {
             *params = _mesa_get_format_datatype(format);
          }