mesa: move more format helper functions to glformats.c

1 files changed, 1 insertions, 368 deletions

diff --git a/src/mesa/main/image.c b/src/mesa/main/image.c
index 5b70115db78..64176552c3f 100644
--- a/src/mesa/main/image.c
+++ b/src/mesa/main/image.c
@@ -32,6 +32,7 @@
 
 #include "glheader.h"
 #include "colormac.h"
+#include "glformats.h"
 #include "image.h"
 #include "imports.h"
 #include "macros.h"
@@ -41,40 +42,6 @@
 
 
 /**
- * \return GL_TRUE if type is packed pixel type, GL_FALSE otherwise.
- */
-GLboolean
-_mesa_type_is_packed(GLenum type)
-{
-   switch (type) {
-   case GL_UNSIGNED_BYTE_3_3_2:
-   case GL_UNSIGNED_BYTE_2_3_3_REV:
-   case MESA_UNSIGNED_BYTE_4_4:
-   case GL_UNSIGNED_SHORT_5_6_5:
-   case GL_UNSIGNED_SHORT_5_6_5_REV:
-   case GL_UNSIGNED_SHORT_4_4_4_4:
-   case GL_UNSIGNED_SHORT_4_4_4_4_REV:
-   case GL_UNSIGNED_SHORT_5_5_5_1:
-   case GL_UNSIGNED_SHORT_1_5_5_5_REV:
-   case GL_UNSIGNED_INT_8_8_8_8:
-   case GL_UNSIGNED_INT_8_8_8_8_REV:
-   case GL_UNSIGNED_INT_10_10_10_2:
-   case GL_UNSIGNED_INT_2_10_10_10_REV:
-   case GL_UNSIGNED_SHORT_8_8_MESA:
-   case GL_UNSIGNED_SHORT_8_8_REV_MESA:
-   case GL_UNSIGNED_INT_24_8_EXT:
-   case GL_UNSIGNED_INT_5_9_9_9_REV:
-   case GL_UNSIGNED_INT_10F_11F_11F_REV:
-   case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
-      return GL_TRUE;
-   }
-
-   return GL_FALSE;
-}
-
-
-
-/**
  * Flip the order of the 2 bytes in each word in the given array.
  *
  * \param p array.
@@ -110,252 +77,6 @@ _mesa_swap4( GLuint *p, GLuint n )
 
 
 /**
- * Get the size of a GL data type.
- *
- * \param type GL data type.
- *
- * \return the size, in bytes, of the given data type, 0 if a GL_BITMAP, or -1
- * if an invalid type enum.
- */
-GLint
-_mesa_sizeof_type( GLenum type )
-{
-   switch (type) {
-      case GL_BITMAP:
-	 return 0;
-      case GL_UNSIGNED_BYTE:
-         return sizeof(GLubyte);
-      case GL_BYTE:
-	 return sizeof(GLbyte);
-      case GL_UNSIGNED_SHORT:
-	 return sizeof(GLushort);
-      case GL_SHORT:
-	 return sizeof(GLshort);
-      case GL_UNSIGNED_INT:
-	 return sizeof(GLuint);
-      case GL_INT:
-	 return sizeof(GLint);
-      case GL_FLOAT:
-	 return sizeof(GLfloat);
-      case GL_DOUBLE:
-	 return sizeof(GLdouble);
-      case GL_HALF_FLOAT_ARB:
-	 return sizeof(GLhalfARB);
-      case GL_FIXED:
-	 return sizeof(GLfixed);
-      default:
-         return -1;
-   }
-}
-
-
-/**
- * Same as _mesa_sizeof_type() but also accepting the packed pixel
- * format data types.
- */
-GLint
-_mesa_sizeof_packed_type( GLenum type )
-{
-   switch (type) {
-      case GL_BITMAP:
-	 return 0;
-      case GL_UNSIGNED_BYTE:
-         return sizeof(GLubyte);
-      case GL_BYTE:
-	 return sizeof(GLbyte);
-      case GL_UNSIGNED_SHORT:
-	 return sizeof(GLushort);
-      case GL_SHORT:
-	 return sizeof(GLshort);
-      case GL_UNSIGNED_INT:
-	 return sizeof(GLuint);
-      case GL_INT:
-	 return sizeof(GLint);
-      case GL_HALF_FLOAT_ARB:
-	 return sizeof(GLhalfARB);
-      case GL_FLOAT:
-	 return sizeof(GLfloat);
-      case GL_UNSIGNED_BYTE_3_3_2:
-      case GL_UNSIGNED_BYTE_2_3_3_REV:
-      case MESA_UNSIGNED_BYTE_4_4:
-         return sizeof(GLubyte);
-      case GL_UNSIGNED_SHORT_5_6_5:
-      case GL_UNSIGNED_SHORT_5_6_5_REV:
-      case GL_UNSIGNED_SHORT_4_4_4_4:
-      case GL_UNSIGNED_SHORT_4_4_4_4_REV:
-      case GL_UNSIGNED_SHORT_5_5_5_1:
-      case GL_UNSIGNED_SHORT_1_5_5_5_REV:
-      case GL_UNSIGNED_SHORT_8_8_MESA:
-      case GL_UNSIGNED_SHORT_8_8_REV_MESA:
-         return sizeof(GLushort);
-      case GL_UNSIGNED_INT_8_8_8_8:
-      case GL_UNSIGNED_INT_8_8_8_8_REV:
-      case GL_UNSIGNED_INT_10_10_10_2:
-      case GL_UNSIGNED_INT_2_10_10_10_REV:
-      case GL_UNSIGNED_INT_24_8_EXT:
-      case GL_UNSIGNED_INT_5_9_9_9_REV:
-      case GL_UNSIGNED_INT_10F_11F_11F_REV:
-         return sizeof(GLuint);
-      case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
-         return 8;
-      default:
-         return -1;
-   }
-}
-
-
-/**
- * Get the number of components in a pixel format.
- *
- * \param format pixel format.
- *
- * \return the number of components in the given format, or -1 if a bad format.
- */
-GLint
-_mesa_components_in_format( GLenum format )
-{
-   switch (format) {
-      case GL_COLOR_INDEX:
-      case GL_STENCIL_INDEX:
-      case GL_DEPTH_COMPONENT:
-      case GL_RED:
-      case GL_RED_INTEGER_EXT:
-      case GL_GREEN:
-      case GL_GREEN_INTEGER_EXT:
-      case GL_BLUE:
-      case GL_BLUE_INTEGER_EXT:
-      case GL_ALPHA:
-      case GL_ALPHA_INTEGER_EXT:
-      case GL_LUMINANCE:
-      case GL_LUMINANCE_INTEGER_EXT:
-      case GL_INTENSITY:
-         return 1;
-
-      case GL_LUMINANCE_ALPHA:
-      case GL_LUMINANCE_ALPHA_INTEGER_EXT:
-      case GL_RG:
-      case GL_YCBCR_MESA:
-      case GL_DEPTH_STENCIL_EXT:
-      case GL_DUDV_ATI:
-      case GL_DU8DV8_ATI:
-      case GL_RG_INTEGER:
-	 return 2;
-
-      case GL_RGB:
-      case GL_BGR:
-      case GL_RGB_INTEGER_EXT:
-      case GL_BGR_INTEGER_EXT:
-	 return 3;
-
-      case GL_RGBA:
-      case GL_BGRA:
-      case GL_ABGR_EXT:
-      case GL_RGBA_INTEGER_EXT:
-      case GL_BGRA_INTEGER_EXT:
-         return 4;
-
-      default:
-         return -1;
-   }
-}
-
-
-/**
- * Get the bytes per pixel of pixel format type pair.
- *
- * \param format pixel format.
- * \param type pixel type.
- *
- * \return bytes per pixel, or -1 if a bad format or type was given.
- */
-GLint
-_mesa_bytes_per_pixel( GLenum format, GLenum type )
-{
-   GLint comps = _mesa_components_in_format( format );
-   if (comps < 0)
-      return -1;
-
-   switch (type) {
-      case GL_BITMAP:
-         return 0;  /* special case */
-      case GL_BYTE:
-      case GL_UNSIGNED_BYTE:
-         return comps * sizeof(GLubyte);
-      case GL_SHORT:
-      case GL_UNSIGNED_SHORT:
-         return comps * sizeof(GLshort);
-      case GL_INT:
-      case GL_UNSIGNED_INT:
-         return comps * sizeof(GLint);
-      case GL_FLOAT:
-         return comps * sizeof(GLfloat);
-      case GL_HALF_FLOAT_ARB:
-         return comps * sizeof(GLhalfARB);
-      case GL_UNSIGNED_BYTE_3_3_2:
-      case GL_UNSIGNED_BYTE_2_3_3_REV:
-         if (format == GL_RGB || format == GL_BGR ||
-             format == GL_RGB_INTEGER_EXT || format == GL_BGR_INTEGER_EXT)
-            return sizeof(GLubyte);
-         else
-            return -1;  /* error */
-      case GL_UNSIGNED_SHORT_5_6_5:
-      case GL_UNSIGNED_SHORT_5_6_5_REV:
-         if (format == GL_RGB || format == GL_BGR ||
-             format == GL_RGB_INTEGER_EXT || format == GL_BGR_INTEGER_EXT)
-            return sizeof(GLushort);
-         else
-            return -1;  /* error */
-      case GL_UNSIGNED_SHORT_4_4_4_4:
-      case GL_UNSIGNED_SHORT_4_4_4_4_REV:
-      case GL_UNSIGNED_SHORT_5_5_5_1:
-      case GL_UNSIGNED_SHORT_1_5_5_5_REV:
-         if (format == GL_RGBA || format == GL_BGRA || format == GL_ABGR_EXT ||
-             format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT)
-            return sizeof(GLushort);
-         else
-            return -1;
-      case GL_UNSIGNED_INT_8_8_8_8:
-      case GL_UNSIGNED_INT_8_8_8_8_REV:
-      case GL_UNSIGNED_INT_10_10_10_2:
-      case GL_UNSIGNED_INT_2_10_10_10_REV:
-         if (format == GL_RGBA || format == GL_BGRA || format == GL_ABGR_EXT ||
-             format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT)
-            return sizeof(GLuint);
-         else
-            return -1;
-      case GL_UNSIGNED_SHORT_8_8_MESA:
-      case GL_UNSIGNED_SHORT_8_8_REV_MESA:
-         if (format == GL_YCBCR_MESA)
-            return sizeof(GLushort);
-         else
-            return -1;
-      case GL_UNSIGNED_INT_24_8_EXT:
-         if (format == GL_DEPTH_STENCIL_EXT)
-            return sizeof(GLuint);
-         else
-            return -1;
-      case GL_UNSIGNED_INT_5_9_9_9_REV:
-         if (format == GL_RGB)
-            return sizeof(GLuint);
-         else
-            return -1;
-      case GL_UNSIGNED_INT_10F_11F_11F_REV:
-         if (format == GL_RGB)
-            return sizeof(GLuint);
-         else
-            return -1;
-      case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
-         if (format == GL_DEPTH_STENCIL)
-            return 8;
-         else
-            return -1;
-      default:
-         return -1;
-   }
-}
-
-
-/**
  * Do error checking of format/type combinations for glReadPixels,
  * glDrawPixels and glTex[Sub]Image.  Note that depending on the format
  * and type values, we may either generate GL_INVALID_OPERATION or
@@ -722,94 +443,6 @@ _mesa_error_check_format_and_type(const struct gl_context *ctx,
 }
 
 
-
-/**
- * Does the given base texture/renderbuffer format have the channel
- * named by 'pname'?
- */
-GLboolean
-_mesa_base_format_has_channel(GLenum base_format, GLenum pname)
-{
-   switch (pname) {
-   case GL_TEXTURE_RED_SIZE:
-   case GL_TEXTURE_RED_TYPE:
-   case GL_RENDERBUFFER_RED_SIZE_EXT:
-   case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
-      if (base_format == GL_RED ||
-	  base_format == GL_RG ||
-	  base_format == GL_RGB ||
-	  base_format == GL_RGBA) {
-	 return GL_TRUE;
-      }
-      return GL_FALSE;
-   case GL_TEXTURE_GREEN_SIZE:
-   case GL_TEXTURE_GREEN_TYPE:
-   case GL_RENDERBUFFER_GREEN_SIZE_EXT:
-   case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
-      if (base_format == GL_RG ||
-	  base_format == GL_RGB ||
-	  base_format == GL_RGBA) {
-	 return GL_TRUE;
-      }
-      return GL_FALSE;
-   case GL_TEXTURE_BLUE_SIZE:
-   case GL_TEXTURE_BLUE_TYPE:
-   case GL_RENDERBUFFER_BLUE_SIZE_EXT:
-   case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
-      if (base_format == GL_RGB ||
-	  base_format == GL_RGBA) {
-	 return GL_TRUE;
-      }
-      return GL_FALSE;
-   case GL_TEXTURE_ALPHA_SIZE:
-   case GL_TEXTURE_ALPHA_TYPE:
-   case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
-   case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
-      if (base_format == GL_RGBA ||
-	  base_format == GL_ALPHA ||
-	  base_format == GL_LUMINANCE_ALPHA) {
-	 return GL_TRUE;
-      }
-      return GL_FALSE;
-   case GL_TEXTURE_LUMINANCE_SIZE:
-   case GL_TEXTURE_LUMINANCE_TYPE:
-      if (base_format == GL_LUMINANCE ||
-	  base_format == GL_LUMINANCE_ALPHA) {
-	 return GL_TRUE;
-      }
-      return GL_FALSE;
-   case GL_TEXTURE_INTENSITY_SIZE:
-   case GL_TEXTURE_INTENSITY_TYPE:
-      if (base_format == GL_INTENSITY) {
-	 return GL_TRUE;
-      }
-      return GL_FALSE;
-   case GL_TEXTURE_DEPTH_SIZE:
-   case GL_TEXTURE_DEPTH_TYPE:
-   case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
-   case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
-      if (base_format == GL_DEPTH_STENCIL ||
-	  base_format == GL_DEPTH_COMPONENT) {
-	 return GL_TRUE;
-      }
-      return GL_FALSE;
-   case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
-   case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
-      if (base_format == GL_DEPTH_STENCIL ||
-	  base_format == GL_STENCIL_INDEX) {
-	 return GL_TRUE;
-      }
-      return GL_FALSE;
-   default:
-      _mesa_warning(NULL, "%s: Unexpected channel token 0x%x\n",
-		    __FUNCTION__, pname);
-      return GL_FALSE;
-   }
-
-   return GL_FALSE;
-}
-
-
 /**
  * Return the byte offset of a specific pixel in an image (1D, 2D or 3D).
  *