diff options
author | Brian <[email protected]> | 2007-08-10 11:37:05 -0600 |
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committer | Brian <[email protected]> | 2007-08-10 11:37:05 -0600 |
commit | c943dab9a36ac1b48a3da570d44128caa67c9f51 (patch) | |
tree | c6623fb29e11aac1b815c6dbe66ec749991b1dfc /src | |
parent | 9879ca019b1ed99ca37e7b485ef4daae0fded066 (diff) |
glReadPixels
Diffstat (limited to 'src')
-rw-r--r-- | src/mesa/state_tracker/st_cb_readpixels.c | 75 | ||||
-rw-r--r-- | src/mesa/state_tracker/st_cb_readpixels.h | 36 |
2 files changed, 111 insertions, 0 deletions
diff --git a/src/mesa/state_tracker/st_cb_readpixels.c b/src/mesa/state_tracker/st_cb_readpixels.c new file mode 100644 index 00000000000..9738aa3c706 --- /dev/null +++ b/src/mesa/state_tracker/st_cb_readpixels.c @@ -0,0 +1,75 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +/** + * glReadPixels interface to pipe + * + * \author Brian Paul + */ + + +#include "main/imports.h" +#include "main/context.h" + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "st_context.h" +#include "st_cb_readpixels.h" +#include "st_cb_fbo.h" +#include "st_format.h" +#include "st_public.h" + + +static void +st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, + GLenum format, GLenum type, + const struct gl_pixelstore_attrib *unpack, + GLvoid *dest) +{ + struct pipe_context *pipe = ctx->st->pipe; + + if (format == GL_RGBA && type == GL_FLOAT) { + struct st_renderbuffer *strb + = st_renderbuffer(ctx->ReadBuffer->_ColorReadBuffer); + if (!strb) + return; + + pipe->region_map(pipe, strb->surface->region); + strb->surface->get_tile(strb->surface, x, y, width, height, dest); + pipe->region_unmap(pipe, strb->surface->region); + } + else { + assert(0); + } + +} + +void st_init_readpixels_functions(struct dd_function_table *functions) +{ + functions->ReadPixels = st_readpixels; +} diff --git a/src/mesa/state_tracker/st_cb_readpixels.h b/src/mesa/state_tracker/st_cb_readpixels.h new file mode 100644 index 00000000000..1dbe9727a5d --- /dev/null +++ b/src/mesa/state_tracker/st_cb_readpixels.h @@ -0,0 +1,36 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +#ifndef ST_CB_READPIXELS_H +#define ST_CB_READPIXELS_H + +extern void +st_init_readpixels_functions(struct dd_function_table *functions); + + +#endif /* ST_CB_READPIXELS_H */ |