gallium: glFramebufferBlitEXT() implementation
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/**************************************************************************
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*
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* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/*
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* Authors:
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* Brian Paul
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*/
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#include "main/imports.h"
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#include "main/image.h"
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#include "main/macros.h"
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#include "main/texformat.h"
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#include "shader/program.h"
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#include "shader/prog_parameter.h"
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#include "shader/prog_print.h"
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#include "st_context.h"
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#include "st_program.h"
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#include "st_cb_drawpixels.h"
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#include "st_cb_blit.h"
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#include "st_cb_fbo.h"
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#include "util/u_blit.h"
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#include "cso_cache/cso_context.h"
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void
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st_init_blit(struct st_context *st)
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{
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st->blit = util_create_blit(st->pipe);
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}
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void
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st_destroy_blit(struct st_context *st)
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{
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util_destroy_blit(st->blit);
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st->blit = NULL;
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}
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static void
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st_BlitFramebuffer(GLcontext *ctx,
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GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
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GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
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GLbitfield mask, GLenum filter)
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{
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struct st_context *st = ctx->st;
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struct pipe_context *pipe = st->pipe;
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const uint pFilter = ((filter == GL_NEAREST)
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? PIPE_TEX_MIPFILTER_NEAREST
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: PIPE_TEX_MIPFILTER_LINEAR);
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if (mask & GL_COLOR_BUFFER_BIT) {
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struct st_renderbuffer *srcRb =
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st_renderbuffer(ctx->ReadBuffer->_ColorReadBuffer);
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struct st_renderbuffer *dstRb =
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st_renderbuffer(ctx->DrawBuffer->_ColorDrawBuffers[0][0]);
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struct pipe_surface *srcSurf = srcRb->surface;
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struct pipe_surface *dstSurf = dstRb->surface;
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srcY0 = srcRb->Base.Height - srcY0;
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srcY1 = srcRb->Base.Height - srcY1;
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dstY0 = dstRb->Base.Height - dstY0;
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dstY1 = dstRb->Base.Height - dstY1;
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util_blit_pixels(st->blit,
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srcSurf, srcX0, srcY0, srcX1, srcY1,
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dstSurf, dstX0, dstY0, dstX1, dstY1,
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0.0, pFilter);
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}
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#if 0
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/* XXX is this sufficient? */
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st_invalidate_state(ctx, _NEW_COLOR | _NEW_TEXTURE);
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#else
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/* need to "unset" cso state because we went behind the back of the cso
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* tracker. Without unset, the _set_ calls would be no-ops.
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*/
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cso_unset_blend(st->cso_context);
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cso_unset_depth_stencil_alpha(st->cso_context);
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cso_unset_rasterizer(st->cso_context);
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cso_set_blend(st->cso_context, &st->state.blend);
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cso_set_depth_stencil_alpha(st->cso_context, &st->state.depth_stencil);
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cso_set_rasterizer(st->cso_context, &st->state.rasterizer);
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pipe->bind_fs_state(pipe, st->fp->driver_shader);
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pipe->bind_vs_state(pipe, st->vp->driver_shader);
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#endif
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}
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void
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st_init_blit_functions(struct dd_function_table *functions)
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{
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functions->BlitFramebuffer = st_BlitFramebuffer;
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}
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@ -0,0 +1,46 @@
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/**************************************************************************
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*
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* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef ST_CB_BLIT_H
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#define ST_CB_BLIT_H
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#include "st_context.h"
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extern void
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st_init_blit(struct st_context *st);
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extern void
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st_destroy_blit(struct st_context *st);
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extern void
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st_init_blit_functions(struct dd_function_table *functions);
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#endif /* ST_CB_BLIT_H */
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