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path: root/mesalib/src/mesa/main/glformats.c
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-rw-r--r--mesalib/src/mesa/main/glformats.c164
1 files changed, 164 insertions, 0 deletions
diff --git a/mesalib/src/mesa/main/glformats.c b/mesalib/src/mesa/main/glformats.c
index 304d45298..0fb25ba0f 100644
--- a/mesalib/src/mesa/main/glformats.c
+++ b/mesalib/src/mesa/main/glformats.c
@@ -353,6 +353,170 @@ _mesa_bytes_per_vertex_attrib(GLint comps, GLenum type)
}
}
+/**
+ * Test if the given format is unsized.
+ */
+GLboolean
+_mesa_is_enum_format_unsized(GLenum format)
+{
+ switch (format) {
+ case GL_RGBA:
+ case GL_BGRA:
+ case GL_ABGR_EXT:
+ case GL_RGB:
+ case GL_BGR:
+ case GL_RG:
+ case GL_RED:
+ case GL_GREEN:
+ case GL_BLUE:
+ case GL_ALPHA:
+ case GL_INTENSITY:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE_ALPHA:
+
+ case GL_SRGB:
+ case GL_SRGB_ALPHA:
+ case GL_SLUMINANCE:
+ case GL_SLUMINANCE_ALPHA:
+
+ case GL_RGBA_SNORM:
+ case GL_RGB_SNORM:
+ case GL_RG_SNORM:
+ case GL_RED_SNORM:
+ case GL_ALPHA_SNORM:
+ case GL_INTENSITY_SNORM:
+ case GL_LUMINANCE_SNORM:
+ case GL_LUMINANCE_ALPHA_SNORM:
+
+ case GL_RED_INTEGER:
+ case GL_GREEN_INTEGER:
+ case GL_BLUE_INTEGER:
+ case GL_ALPHA_INTEGER:
+ case GL_RGB_INTEGER:
+ case GL_RGBA_INTEGER:
+ case GL_BGR_INTEGER:
+ case GL_BGRA_INTEGER:
+ case GL_RG_INTEGER:
+ case GL_LUMINANCE_INTEGER_EXT:
+ case GL_LUMINANCE_ALPHA_INTEGER_EXT:
+
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_STENCIL:
+ case GL_STENCIL_INDEX:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+/**
+ * Test if the given format is a UNORM (unsigned-normalized) format.
+ */
+GLboolean
+_mesa_is_enum_format_unorm(GLenum format)
+{
+ switch(format) {
+ case GL_RED:
+ case GL_GREEN:
+ case GL_BLUE:
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ case 1:
+ case GL_LUMINANCE:
+ case GL_SLUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ case 2:
+ case GL_LUMINANCE_ALPHA:
+ case GL_SLUMINANCE_ALPHA:
+ case GL_LUMINANCE4_ALPHA4:
+ case GL_LUMINANCE6_ALPHA2:
+ case GL_LUMINANCE8_ALPHA8:
+ case GL_LUMINANCE12_ALPHA4:
+ case GL_LUMINANCE12_ALPHA12:
+ case GL_LUMINANCE16_ALPHA16:
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ case GL_R8:
+ case GL_R16:
+ case GL_RG:
+ case GL_RG8:
+ case GL_RG16:
+ case 3:
+ case GL_RGB:
+ case GL_BGR:
+ case GL_SRGB:
+ case GL_R3_G3_B2:
+ case GL_RGB4:
+ case GL_RGB5:
+ case GL_RGB565:
+ case GL_RGB8:
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ case 4:
+ case GL_ABGR_EXT:
+ case GL_RGBA:
+ case GL_BGRA:
+ case GL_SRGB_ALPHA:
+ case GL_RGBA2:
+ case GL_RGBA4:
+ case GL_RGB5_A1:
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+/**
+ * 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.