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swrast: Remove support for CopyPixels to / from a color-index buffer

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Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Ian Romanick 2010-02-24 15:02:59 -08:00
parent d82e1d7f95
commit e7e748cd04
1 changed files with 5 additions and 112 deletions
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117
src/mesa/swrast/s_copypix.c
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@ -307,100 +307,6 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
}
static void
copy_ci_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
GLint width, GLint height,
GLint destx, GLint desty )
{
GLuint *tmpImage,*p;
GLint sy, dy, stepy;
GLint j;
const GLboolean zoom = ctx->Pixel.ZoomX != 1.0F || ctx->Pixel.ZoomY != 1.0F;
GLint overlapping;
SWspan span;
if (!ctx->ReadBuffer->_ColorReadBuffer) {
/* no readbuffer - OK */
return;
}
INIT_SPAN(span, GL_BITMAP);
_swrast_span_default_attribs(ctx, &span);
span.arrayMask = SPAN_INDEX;
if (ctx->DrawBuffer == ctx->ReadBuffer) {
overlapping = regions_overlap(srcx, srcy, destx, desty, width, height,
ctx->Pixel.ZoomX, ctx->Pixel.ZoomY);
}
else {
overlapping = GL_FALSE;
}
/* Determine if copy should be bottom-to-top or top-to-bottom */
if (!overlapping && srcy < desty) {
/* top-down max-to-min */
sy = srcy + height - 1;
dy = desty + height - 1;
stepy = -1;
}
else {
/* bottom-up min-to-max */
sy = srcy;
dy = desty;
stepy = 1;
}
if (overlapping) {
GLint ssy = sy;
tmpImage = (GLuint *) malloc(width * height * sizeof(GLuint));
if (!tmpImage) {
_mesa_error( ctx, GL_OUT_OF_MEMORY, "glCopyPixels" );
return;
}
/* read the image */
p = tmpImage;
for (j = 0; j < height; j++, ssy += stepy) {
_swrast_read_index_span( ctx, ctx->ReadBuffer->_ColorReadBuffer,
width, srcx, ssy, p );
p += width;
}
p = tmpImage;
}
else {
tmpImage = NULL; /* silence compiler warning */
p = NULL;
}
for (j = 0; j < height; j++, sy += stepy, dy += stepy) {
/* Get color indexes */
if (overlapping) {
memcpy(span.array->index, p, width * sizeof(GLuint));
p += width;
}
else {
_swrast_read_index_span( ctx, ctx->ReadBuffer->_ColorReadBuffer,
width, srcx, sy, span.array->index );
}
if (ctx->_ImageTransferState)
_mesa_apply_ci_transfer_ops(ctx, ctx->_ImageTransferState,
width, span.array->index);
/* write color indexes */
span.x = destx;
span.y = dy;
span.end = width;
if (zoom)
_swrast_write_zoomed_index_span(ctx, destx, desty, &span);
else
_swrast_write_index_span(ctx, &span);
}
if (overlapping)
free(tmpImage);
}
/**
* Convert floating point Z values to integer Z values with pixel transfer's
* Z scale and bias.
@ -522,18 +428,10 @@ copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
span.x = destx;
span.y = dy;
span.end = width;
if (fb->Visual.rgbMode) {
if (zoom)
_swrast_write_zoomed_depth_span(ctx, destx, desty, &span);
else
_swrast_write_rgba_span(ctx, &span);
}
else {
if (zoom)
_swrast_write_zoomed_depth_span(ctx, destx, desty, &span);
else
_swrast_write_index_span(ctx, &span);
}
if (zoom)
_swrast_write_zoomed_depth_span(ctx, destx, desty, &span);
else
_swrast_write_rgba_span(ctx, &span);
}
if (overlapping)
@ -909,12 +807,7 @@ _swrast_CopyPixels( GLcontext *ctx,
if (!fast_copy_pixels(ctx, srcx, srcy, width, height, destx, desty, type)) {
switch (type) {
case GL_COLOR:
if (ctx->Visual.rgbMode) {
copy_rgba_pixels( ctx, srcx, srcy, width, height, destx, desty );
}
else {
copy_ci_pixels( ctx, srcx, srcy, width, height, destx, desty );
}
copy_rgba_pixels( ctx, srcx, srcy, width, height, destx, desty );
break;
case GL_DEPTH:
copy_depth_pixels( ctx, srcx, srcy, width, height, destx, desty );