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Refactors __glXImageSize and __glXImage3DSize into a single function. It

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replaces all calls to the old functions with calls to __glXImageSize
    with the new parameter list.
I have also added 'target' as a parameter. This is a stepping stone to the
    code in patch #2410. Basically, if the texture target is one of
    GL_PROXY_*, the image size is always zero. This gathers all the checks
    for that into a single place. I have *not* modified the existing
    callers to take this into account. They still do their own checks for
    GL_PROXY_*. However, when the generated versions of those functions are
    added to the tree, they *will* rely on that.
The code growth is mainly due to the new 40 line comment before
    __glXImageSize.
I have tested this with a few of the texture using demos and tests from
    Mesa, including tunnel, texdown, and drawpix.
Reviewed by: Adam Jackson, Eric Anholt, and Brian Paul.
This commit is contained in:
Ian Romanick 2005-10-01 22:25:13 +00:00
parent e27b3e4ea1
commit 2c82429f89
5 changed files with 99 additions and 45 deletions
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11
GL/glx/glxserver.h
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@ -225,13 +225,10 @@ extern void glxSwapQueryServerStringReply(ClientPtr client,
*/
extern int __glXTypeSize(GLenum enm);
extern int __glXImageSize(GLenum format, GLenum type, GLsizei w, GLsizei h,
GLint rowLength, GLint skipRows, GLint alignment);
extern int __glXImage3DSize(GLenum format, GLenum type,
GLsizei w, GLsizei h, GLsizei d,
GLint imageHeight, GLint rowLength,
GLint skipImages, GLint skipRows,
GLint alignment);
extern int __glXImageSize(GLenum format, GLenum type,
GLenum target, GLsizei w, GLsizei h, GLsizei d,
GLint imageHeight, GLint rowLength, GLint skipImages, GLint skipRows,
GLint alignment);
extern int __glXCallListsReqSize(GLbyte *pc, Bool swap);
extern int __glXBitmapReqSize(GLbyte *pc, Bool swap);

5
GL/glx/renderpix.c
View File

@ -301,8 +301,9 @@ void __glXDisp_SeparableFilter2D(GLbyte *pc)
/* XXX check this usage - internal code called
** a version without the packing parameters
*/
image1len = __glXImageSize(hdr->format, hdr->type, hdr->width, 1,
hdr->rowLength, hdr->skipRows, hdr->alignment);
image1len = __glXImageSize(hdr->format, hdr->type, 0, hdr->width, 1, 1,
0, hdr->rowLength, 0, hdr->skipRows,
hdr->alignment);
image1len = __GLX_PAD(image1len);
glSeparableFilter2D(hdr->target, hdr->internalformat,

5
GL/glx/renderpixswap.c
View File

@ -543,8 +543,9 @@ void __glXDispSwap_SeparableFilter2D(GLbyte *pc)
/* XXX check this usage - internal code called
** a version without the packing parameters
*/
image1len = __glXImageSize(hdr->format, hdr->type, hdr->width, 1,
hdr->rowLength, hdr->skipRows, hdr->alignment);
image1len = __glXImageSize(hdr->format, hdr->type, 0, hdr->width, 1, 1,
0, hdr->rowLength, 0, hdr->skipRows,
hdr->alignment);
image1len = __GLX_PAD(image1len);

117
GL/glx/rensize.c
View File

@ -268,19 +268,49 @@ int __glXPixelMapusvReqSize(GLbyte *pc, Bool swap )
return 2 * mapsize;
}
int __glXImageSize( GLenum format, GLenum type, GLsizei w, GLsizei h,
GLint rowLength, GLint skipRows, GLint alignment )
{
return __glXImage3DSize( format, type, w, h, 1, 0, rowLength,
0, skipRows, alignment );
}
/* XXX
* This should be folded into __glXImageSize().
/**
* Calculate the size of an image.
*
* The size of an image sent to the server from the client or sent from the
* server to the client is calculated. The size is based on the dimensions
* of the image, the type of pixel data, padding in the image, and the
* alignment requirements of the image.
*
* \param format Format of the pixels. Same as the \c format parameter
* to \c glTexImage1D
* \param type Type of the pixel data. Same as the \c type parameter
* to \c glTexImage1D
* \param target Typically the texture target of the image. If the
* target is one of \c GL_PROXY_*, the size returned is
* always zero. For uses that do not have a texture target
* (e.g, glDrawPixels), zero should be specified.
* \param w Width of the image data. Must be >= 1.
* \param h Height of the image data. Must be >= 1, even for 1D
* images.
* \param d Depth of the image data. Must be >= 1, even for 1D or
* 2D images.
* \param imageHeight If non-zero, defines the true height of a volumetric
* image. This value will be used instead of \c h for
* calculating the size of the image.
* \param rowLength If non-zero, defines the true width of an image. This
* value will be used instead of \c w for calculating the
* size of the image.
* \param skipImages Number of extra layers of image data in a volumtric
* image that are to be skipped before the real data.
* \param skipRows Number of extra rows of image data in an image that are
* to be skipped before the real data.
* \param alignment Specifies the alignment for the start of each pixel row
* in memory. This value must be one of 1, 2, 4, or 8.
*
* \returns
* The size of the image is returned. If the specified \c format and \c type
* are invalid, -1 is returned. If \c target is one of \c GL_PROXY_*, zero
* is returned.
*/
int __glXImage3DSize( GLenum format, GLenum type, GLsizei w, GLsizei h,
GLsizei d, GLint imageHeight, GLint rowLength,
GLint skipImages, GLint skipRows, GLint alignment )
int __glXImageSize( GLenum format, GLenum type, GLenum target,
GLsizei w, GLsizei h, GLsizei d,
GLint imageHeight, GLint rowLength,
GLint skipImages, GLint skipRows, GLint alignment )
{
GLint bytesPerElement, elementsPerGroup, groupsPerRow;
GLint groupSize, rowSize, padding, imageSize;
@ -292,6 +322,22 @@ int __glXImage3DSize( GLenum format, GLenum type, GLsizei w, GLsizei h,
}
if (w==0 || h==0 || d == 0) return 0;
switch( target ) {
case GL_PROXY_TEXTURE_1D:
case GL_PROXY_TEXTURE_2D:
case GL_PROXY_TEXTURE_3D:
case GL_PROXY_TEXTURE_4D_SGIS:
case GL_PROXY_TEXTURE_CUBE_MAP:
case GL_PROXY_TEXTURE_RECTANGLE_ARB:
case GL_PROXY_HISTOGRAM:
case GL_PROXY_COLOR_TABLE:
case GL_PROXY_TEXTURE_COLOR_TABLE_SGI:
case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE:
case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE:
case GL_PROXY_POST_IMAGE_TRANSFORM_COLOR_TABLE_HP:
return 0;
}
if (type == GL_BITMAP) {
if (rowLength > 0) {
groupsPerRow = rowLength;
@ -425,7 +471,8 @@ int __glXDrawPixelsReqSize(GLbyte *pc, Bool swap )
skipRows = SWAPL( skipRows );
alignment = SWAPL( alignment );
}
return __glXImageSize( format, type, w, h, rowLength, skipRows, alignment );
return __glXImageSize( format, type, 0, w, h, 1,
0, rowLength, 0, skipRows, alignment );
}
int __glXBitmapReqSize(GLbyte *pc, Bool swap )
@ -444,8 +491,8 @@ int __glXBitmapReqSize(GLbyte *pc, Bool swap )
skipRows = SWAPL( skipRows );
alignment = SWAPL( alignment );
}
return __glXImageSize( GL_COLOR_INDEX, GL_BITMAP, w, h,
rowLength, skipRows, alignment );
return __glXImageSize( GL_COLOR_INDEX, GL_BITMAP, 0, w, h, 1,
0, rowLength, 0, skipRows, alignment );
}
int __glXTexImage1DReqSize(GLbyte *pc, Bool swap )
@ -473,7 +520,8 @@ int __glXTexImage1DReqSize(GLbyte *pc, Bool swap )
} else if (format == GL_STENCIL_INDEX || format == GL_DEPTH_COMPONENT) {
return -1;
}
return __glXImageSize( format, type, w, 1, rowLength, skipRows, alignment );
return __glXImageSize( format, type, 0, w, 1, 1,
0, rowLength, 0, skipRows, alignment );
}
int __glXTexImage2DReqSize(GLbyte *pc, Bool swap )
@ -503,7 +551,8 @@ int __glXTexImage2DReqSize(GLbyte *pc, Bool swap )
} else if (format == GL_STENCIL_INDEX || format == GL_DEPTH_COMPONENT) {
return -1;
}
return __glXImageSize( format, type, w, h, rowLength, skipRows, alignment );
return __glXImageSize( format, type, 0, w, h, 1,
0, rowLength, 0, skipRows, alignment );
}
/* XXX this is used elsewhere - should it be exported from glxserver.h? */
@ -614,7 +663,8 @@ int __glXTexSubImage1DReqSize(GLbyte *pc, Bool swap )
skipRows = SWAPL( skipRows );
alignment = SWAPL( alignment );
}
return __glXImageSize( format, type, w, 1, rowLength, skipRows, alignment );
return __glXImageSize( format, type, 0, w, 1, 1,
0, rowLength, 0, skipRows, alignment );
}
int __glXTexSubImage2DReqSize(GLbyte *pc, Bool swap )
@ -637,7 +687,8 @@ int __glXTexSubImage2DReqSize(GLbyte *pc, Bool swap )
skipRows = SWAPL( skipRows );
alignment = SWAPL( alignment );
}
return __glXImageSize( format, type, w, h, rowLength, skipRows, alignment );
return __glXImageSize( format, type, 0, w, h, 1,
0, rowLength, 0, skipRows, alignment );
}
int __glXTexImage3DReqSize(GLbyte *pc, Bool swap )
@ -672,9 +723,8 @@ int __glXTexImage3DReqSize(GLbyte *pc, Bool swap )
if (target == GL_PROXY_TEXTURE_3D || nullImage) {
return 0;
} else {
return __glXImage3DSize( format, type, w, h, d, imageHeight,
rowLength, skipImages, skipRows,
alignment);
return __glXImageSize( format, type, target, w, h, d, imageHeight,
rowLength, skipImages, skipRows, alignment );
}
}
@ -710,9 +760,8 @@ int __glXTexSubImage3DReqSize(GLbyte *pc, Bool swap )
if (target == GL_PROXY_TEXTURE_3D) {
return 0;
} else {
return __glXImage3DSize( format, type, w, h, d, imageHeight,
rowLength, skipImages, skipRows,
alignment);
return __glXImageSize( format, type, target, w, h, d, imageHeight,
rowLength, skipImages, skipRows, alignment );
}
}
@ -735,7 +784,8 @@ int __glXConvolutionFilter1DReqSize(GLbyte *pc, Bool swap )
alignment = SWAPL( alignment );
}
return __glXImageSize ( format, type, w, 1, rowLength, 0, alignment );
return __glXImageSize( format, type, 0, w, 1, 1,
0, rowLength, 0, 0, alignment );
}
int __glXConvolutionFilter2DReqSize(GLbyte *pc, Bool swap )
@ -761,7 +811,8 @@ int __glXConvolutionFilter2DReqSize(GLbyte *pc, Bool swap )
alignment = SWAPL( alignment );
}
return __glXImageSize ( format, type, w, h, rowLength, skipRows, alignment );
return __glXImageSize( format, type, 0, w, h, 1,
0, rowLength, 0, skipRows, alignment );
}
int __glXConvolutionParameterivSize(GLenum pname)
@ -820,9 +871,11 @@ int __glXSeparableFilter2DReqSize(GLbyte *pc, Bool swap )
}
/* XXX Should rowLength be used for either or both image? */
image1size = __glXImageSize ( format, type, w, 1, rowLength, 0, alignment );
image1size = __glXImageSize( format, type, 0, w, 1, 1,
0, rowLength, 0, 0, alignment );
image1size = __GLX_PAD(image1size);
image2size = __glXImageSize ( format, type, h, 1, rowLength, 0, alignment );
image2size = __glXImageSize( format, type, 0, h, 1, 1,
0, rowLength, 0, 0, alignment );
return image1size + image2size;
}
@ -876,7 +929,8 @@ int __glXColorTableReqSize(GLbyte *pc, Bool swap )
alignment = SWAPL( alignment );
}
return __glXImageSize ( format, type, w, 1, rowLength, 0, alignment );
return __glXImageSize( format, type, 0, w, 1, 1,
0, rowLength, 0, 0, alignment );
}
int __glXColorSubTableReqSize(GLbyte *pc, Bool swap )
@ -898,7 +952,8 @@ int __glXColorSubTableReqSize(GLbyte *pc, Bool swap )
alignment = SWAPL( alignment );
}
return __glXImageSize ( format, type, count, 1, rowLength, 0, alignment );
return __glXImageSize( format, type, 0, count, 1, 1,
0, rowLength, 0, 0, alignment );
}
int __glXColorTableParameterfvReqSize(GLbyte *pc, Bool swap )

6
GL/glx/singlesize.c
View File

@ -51,7 +51,7 @@
GLint __glReadPixels_size(GLenum format, GLenum type, GLint w, GLint h)
{
return __glXImage3DSize( format, type, w, h, 1, 0, 0, 0, 0, 4 );
return __glXImageSize( format, type, 0, w, h, 1, 0, 0, 0, 0, 4 );
}
/**
@ -1127,8 +1127,8 @@ GLint __glGetTexLevelParameteriv_size(GLenum pname)
GLint __glGetTexImage_size(GLenum target, GLint level, GLenum format,
GLenum type, GLint width, GLint height, GLint depth)
{
return __glXImage3DSize( format, type, width, height, depth,
0, 0, 0, 0, 4 );
return __glXImageSize( format, type, target, width, height, depth,
0, 0, 0, 0, 4 );
}
GLint __glGetConvolutionParameteriv_size(GLenum pname)