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added compressed formats to is_color_format() and updated some comments

This commit is contained in:
Brian Paul 2004-06-14 21:01:08 +00:00
parent 3dc3cc9d40
commit 3405708e21
1 changed files with 27 additions and 14 deletions
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41
src/mesa/main/teximage.c
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@ -321,15 +321,15 @@ _mesa_base_tex_format( GLcontext *ctx, GLint internalFormat )
/**
* Test if the given internal texture format is a color/RGBA format
* (i.e., not color index, depth, stencil, etc).
* \param internalFormat an internal texture format token (or 1, 2, 3, or 4)
* Test if the given image format is a color/RGBA format (i.e., not color
* index, depth, stencil, etc).
* \param format the image format value (may by an internal texture format)
* \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise.
*/
static GLboolean
is_color_format(GLenum internalFormat)
is_color_format(GLenum format)
{
switch (internalFormat) {
switch (format) {
case GL_ALPHA:
case GL_ALPHA4:
case GL_ALPHA8:
@ -387,6 +387,19 @@ is_color_format(GLenum internalFormat)
case GL_RGB32F_ARB:
case GL_RGBA16F_ARB:
case GL_RGBA32F_ARB:
/* compressed formats */
case GL_COMPRESSED_ALPHA:
case GL_COMPRESSED_LUMINANCE:
case GL_COMPRESSED_LUMINANCE_ALPHA:
case GL_COMPRESSED_INTENSITY:
case GL_COMPRESSED_RGB:
case GL_COMPRESSED_RGBA:
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
case GL_COMPRESSED_RGB_FXT1_3DFX:
case GL_COMPRESSED_RGBA_FXT1_3DFX:
return GL_TRUE;
case GL_YCBCR_MESA: /* not considered to be RGB */
default:
@ -396,12 +409,12 @@ is_color_format(GLenum internalFormat)
/**
* Test if the given internal texture format is a color index format.
* Test if the given image format is a color index format.
*/
static GLboolean
is_index_format(GLenum internalFormat)
is_index_format(GLenum format)
{
switch (internalFormat) {
switch (format) {
case GL_COLOR_INDEX:
case GL_COLOR_INDEX1_EXT:
case GL_COLOR_INDEX2_EXT:
@ -417,12 +430,12 @@ is_index_format(GLenum internalFormat)
/**
* Test if the given internal texture format is a depth component format.
* Test if the given image format is a depth component format.
*/
static GLboolean
is_depth_format(GLenum internalFormat)
is_depth_format(GLenum format)
{
switch (internalFormat) {
switch (format) {
case GL_DEPTH_COMPONENT16_ARB:
case GL_DEPTH_COMPONENT24_ARB:
case GL_DEPTH_COMPONENT32_ARB:
@ -435,12 +448,12 @@ is_depth_format(GLenum internalFormat)
/**
* Test if the given internal texture format is a YCbCr format.
* Test if the given image format is a YCbCr format.
*/
static GLboolean
is_ycbcr_format(GLenum internalFormat)
is_ycbcr_format(GLenum format)
{
switch (internalFormat) {
switch (format) {
case GL_YCBCR_MESA:
return GL_TRUE;
default: