/**
* Do software-based glCopyPixels.
* By time we get here, all parameters will have been error-checked.
*/
void
_swrast_CopyPixels( GLcontext *ctx,
GLint srcx, GLint srcy, GLsizei width, GLsizei height,
GLint destx, GLint desty, GLenum type )
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
swrast_render_start(ctx);
if (!_mesa_check_conditional_render(ctx))
return; /* don't copy */
if (swrast->NewState)
_swrast_validate_derived( ctx );
if (!fast_copy_pixels(ctx, srcx, srcy, width, height, destx, desty, type)) {
switch (type) {
case GL_COLOR:
copy_rgba_pixels( ctx, srcx, srcy, width, height, destx, desty );
break;
case GL_DEPTH:
copy_depth_pixels( ctx, srcx, srcy, width, height, destx, desty );
break;
case GL_STENCIL:
copy_stencil_pixels( ctx, srcx, srcy, width, height, destx, desty );
break;
case GL_DEPTH_STENCIL_EXT:
copy_depth_stencil_pixels(ctx, srcx, srcy, width, height, destx, desty);
break;
default:
_mesa_problem(ctx, "unexpected type in _swrast_CopyPixels");
}
}
swrast_render_finish(ctx);
}
/**
* Do software-based glCopyPixels.
* By time we get here, all parameters will have been error-checked.
*/
void
_swrast_CopyPixels( GLcontext *ctx,
GLint srcx, GLint srcy, GLsizei width, GLsizei height,
GLint destx, GLint desty, GLenum type )
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
RENDER_START(swrast,ctx);
if (swrast->NewState)
_swrast_validate_derived( ctx );
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 );
}
break;
case GL_DEPTH:
copy_depth_pixels( ctx, srcx, srcy, width, height, destx, desty );
break;
case GL_STENCIL:
copy_stencil_pixels( ctx, srcx, srcy, width, height, destx, desty );
break;
case GL_DEPTH_STENCIL_EXT:
copy_depth_stencil_pixels(ctx, srcx, srcy, width, height, destx, desty);
break;
default:
_mesa_problem(ctx, "unexpected type in _swrast_CopyPixels");
}
RENDER_FINISH(swrast,ctx);
}
/**
* Do software-based glCopyPixels.
* By time we get here, all parameters will have been error-checked.
*/
void
_swrast_CopyPixels( struct gl_context *ctx,
GLint srcx, GLint srcy, GLsizei width, GLsizei height,
GLint destx, GLint desty, GLenum type )
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
struct gl_renderbuffer *rb;
if (!_mesa_check_conditional_render(ctx))
return; /* don't copy */
if (swrast->NewState)
_swrast_validate_derived( ctx );
if (!(SWRAST_CONTEXT(ctx)->_RasterMask != 0x0 ||
ctx->Pixel.ZoomX != 1.0F ||
ctx->Pixel.ZoomY != 1.0F ||
ctx->_ImageTransferState) &&
swrast_fast_copy_pixels(ctx, srcx, srcy, width, height, destx, desty,
type)) {
/* all done */
return;
}
swrast_render_start(ctx);
rb = map_readbuffer(ctx, type);
switch (type) {
case GL_COLOR:
copy_rgba_pixels( ctx, srcx, srcy, width, height, destx, desty );
break;
case GL_DEPTH:
copy_depth_pixels( ctx, srcx, srcy, width, height, destx, desty );
break;
case GL_STENCIL:
copy_stencil_pixels( ctx, srcx, srcy, width, height, destx, desty );
break;
case GL_DEPTH_STENCIL_EXT:
/* Copy buffers separately (if the fast copy path wasn't taken) */
copy_depth_pixels(ctx, srcx, srcy, width, height, destx, desty);
copy_stencil_pixels(ctx, srcx, srcy, width, height, destx, desty);
break;
default:
_mesa_problem(ctx, "unexpected type in _swrast_CopyPixels");
}
swrast_render_finish(ctx);
if (rb) {
struct swrast_renderbuffer *srb = swrast_renderbuffer(rb);
ctx->Driver.UnmapRenderbuffer(ctx, rb);
srb->Map = NULL;
}
}