diff options
| -rw-r--r-- | src/mesa/main/glformats.c | 37 | ||||
| -rw-r--r-- | src/mesa/main/glformats.h | 3 |
2 files changed, 40 insertions, 0 deletions
diff --git a/src/mesa/main/glformats.c b/src/mesa/main/glformats.c index 304d45298e5..a0c7170dd32 100644 --- a/src/mesa/main/glformats.c +++ b/src/mesa/main/glformats.c @@ -353,6 +353,43 @@ _mesa_bytes_per_vertex_attrib(GLint comps, GLenum type) } } +/** + * Test if the given format is a SNORM (signed-normalized) format. + */ +GLboolean +_mesa_is_enum_format_snorm(GLenum format) +{ + switch (format) { + /* signed, normalized texture formats */ + case GL_RED_SNORM: + case GL_R8_SNORM: + case GL_R16_SNORM: + case GL_RG_SNORM: + case GL_RG8_SNORM: + case GL_RG16_SNORM: + case GL_RGB_SNORM: + case GL_RGB8_SNORM: + case GL_RGB16_SNORM: + case GL_RGBA_SNORM: + case GL_RGBA8_SNORM: + case GL_RGBA16_SNORM: + case GL_ALPHA_SNORM: + case GL_ALPHA8_SNORM: + case GL_ALPHA16_SNORM: + case GL_LUMINANCE_SNORM: + case GL_LUMINANCE8_SNORM: + case GL_LUMINANCE16_SNORM: + case GL_LUMINANCE_ALPHA_SNORM: + case GL_LUMINANCE8_ALPHA8_SNORM: + case GL_LUMINANCE16_ALPHA16_SNORM: + case GL_INTENSITY_SNORM: + case GL_INTENSITY8_SNORM: + case GL_INTENSITY16_SNORM: + return GL_TRUE; + default: + return GL_FALSE; + } +} /** * Test if the given format is an integer (non-normalized) format. diff --git a/src/mesa/main/glformats.h b/src/mesa/main/glformats.h index d64114ec9b0..76e9a2493d6 100644 --- a/src/mesa/main/glformats.h +++ b/src/mesa/main/glformats.h @@ -57,6 +57,9 @@ extern GLboolean _mesa_is_type_unsigned(GLenum type); extern GLboolean +_mesa_is_enum_format_snorm(GLenum format); + +extern GLboolean _mesa_is_enum_format_integer(GLenum format); extern GLboolean |