From: Mathias Fröhlich <mathias.froehl...@gmx.net>
Will be used in the implementation of NV_depth_buffer_float.
Signed-off-by: Mathias Froehlich <mathias.froehl...@web.de
---
src/mesa/main/glformats.c | 18 ++++++++++++++++++
src/mesa/main/glformats.h | 3 +++
2 files changed, 21 insertions(+)
diff --git a/src/mesa/main/glformats.c b/src/mesa/main/glformats.c
index 00478f9..16f7d6b 100644
--- a/src/mesa/main/glformats.c
+++ b/src/mesa/main/glformats.c
@@ -983,6 +983,24 @@ _mesa_is_depth_or_stencil_format(GLenum format)
/**
+ * Test if the given image format is a float depth format.
+ */
+GLboolean
+_mesa_is_float_depth_format(GLenum format)
+{
+ switch (format) {
+ case GL_DEPTH_COMPONENT32F:
+ case GL_DEPTH_COMPONENT32F_NV:
+ case GL_DEPTH32F_STENCIL8:
+ case GL_DEPTH32F_STENCIL8_NV:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
* Test if an image format is a supported compressed format.
* \param format the internal format token provided by the user.
* \return GL_TRUE if compressed, GL_FALSE if uncompressed
diff --git a/src/mesa/main/glformats.h b/src/mesa/main/glformats.h
index 7b03215..a960786 100644
--- a/src/mesa/main/glformats.h
+++ b/src/mesa/main/glformats.h
@@ -93,6 +93,9 @@ extern GLboolean
_mesa_is_depth_or_stencil_format(GLenum format);
extern GLboolean
+_mesa_is_float_depth_format(GLenum format);
+
+extern GLboolean
_mesa_is_compressed_format(struct gl_context *ctx, GLenum format);
extern GLenum
--
1.9.3
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