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GetConvolution/SeparableFilter() now finished

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This commit is contained in:
Brian Paul
2000-09-05 20:28:56 +00:00
parent 45f3634ce3
commit f75d697c03
1 changed files with 51 additions and 12 deletions
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63
src/mesa/main/convolve.c
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@@ -1,4 +1,4 @@
/* $Id: convolve.c,v 1.4 2000/08/23 14:31:25 brianp Exp $ */
/* $Id: convolve.c,v 1.5 2000/09/05 20:28:56 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -540,14 +540,11 @@ _mesa_CopyConvolutionFilter2D(GLenum target, GLenum internalFormat, GLint x, GLi
void
_mesa_GetConvolutionFilter(GLenum target, GLenum format, GLenum type, GLvoid *image)
{
const struct gl_convolution_attrib *filter;
GLint row;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetConvolutionFilter");
if (target != GL_CONVOLUTION_1D && target != GL_CONVOLUTION_2D) {
gl_error(ctx, GL_INVALID_ENUM, "glGetConvolutionFilter(target)");
return;
}
if (!_mesa_is_legal_format_and_type(format, type) ||
format == GL_COLOR_INDEX ||
format == GL_STENCIL_INDEX ||
@@ -558,8 +555,28 @@ _mesa_GetConvolutionFilter(GLenum target, GLenum format, GLenum type, GLvoid *im
return;
}
(void) image;
/* XXX store image */
switch (target) {
case GL_CONVOLUTION_1D:
filter = &(ctx->Convolution1D);
break;
case GL_CONVOLUTION_2D:
filter = &(ctx->Convolution2D);
break;
default:
gl_error(ctx, GL_INVALID_ENUM, "glGetConvolutionFilter(target)");
return;
}
for (row = 0; row < filter->Height; row++) {
GLvoid *dst = _mesa_image_address( &ctx->Pack, image, filter->Width,
filter->Height, format, type,
0, row, 0);
const GLfloat *src = filter->Filter + row * filter->Width * 4;
/* XXX apply transfer ops or not? */
_mesa_pack_float_rgba_span(ctx, filter->Width,
(const GLfloat (*)[4]) src,
format, type, dst, &ctx->Pack, 0);
}
}
@@ -699,6 +716,8 @@ _mesa_GetConvolutionParameteriv(GLenum target, GLenum pname, GLint *params)
void
_mesa_GetSeparableFilter(GLenum target, GLenum format, GLenum type, GLvoid *row, GLvoid *column, GLvoid *span)
{
const GLint colStart = MAX_CONVOLUTION_WIDTH * 4;
const struct gl_convolution_attrib *filter;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetSeparableFilter");
@@ -717,10 +736,30 @@ _mesa_GetSeparableFilter(GLenum target, GLenum format, GLenum type, GLvoid *row,
return;
}
/* XXX to do */
(void) row;
(void) column;
(void) span;
filter = &ctx->Separable2D;
/* Row filter */
{
GLvoid *dst = _mesa_image_address( &ctx->Pack, row, filter->Width,
filter->Height, format, type,
0, 0, 0);
_mesa_pack_float_rgba_span(ctx, filter->Width,
(const GLfloat (*)[4]) filter->Filter,
format, type, dst, &ctx->Pack, 0);
}
/* Column filter */
{
GLvoid *dst = _mesa_image_address( &ctx->Pack, column, filter->Width,
1, format, type,
0, 0, 0);
const GLfloat *src = filter->Filter + colStart;
_mesa_pack_float_rgba_span(ctx, filter->Height,
(const GLfloat (*)[4]) src,
format, type, dst, &ctx->Pack, 0);
}
(void) span; /* unused at this time */
}