158 lines
4.6 KiB
C
158 lines
4.6 KiB
C
/**************************************************************************
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*
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* Copyright 2006 VMware, Inc.
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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 VMWARE 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 INTEL_FBO_H
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#define INTEL_FBO_H
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#include <stdbool.h>
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#include <assert.h>
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#include "main/formats.h"
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#include "main/macros.h"
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#include "intel_context.h"
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#include "intel_mipmap_tree.h"
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#include "intel_screen.h"
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struct intel_context;
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struct intel_mipmap_tree;
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struct intel_texture_image;
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/**
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* Intel renderbuffer, derived from gl_renderbuffer.
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*/
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struct intel_renderbuffer
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{
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struct swrast_renderbuffer Base;
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struct intel_mipmap_tree *mt; /**< The renderbuffer storage. */
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/**
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* \name Miptree view
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* \{
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*
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* Multiple renderbuffers may simultaneously wrap a single texture and each
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* provide a different view into that texture. The fields below indicate
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* which miptree slice is wrapped by this renderbuffer. The fields' values
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* are consistent with the 'level' and 'layer' parameters of
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* glFramebufferTextureLayer().
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*
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* For renderbuffers not created with glFramebufferTexture*(), mt_level and
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* mt_layer are 0.
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*/
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unsigned int mt_level;
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unsigned int mt_layer;
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/** \} */
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GLuint draw_x, draw_y; /**< Offset of drawing within the region */
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};
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/**
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* gl_renderbuffer is a base class which we subclass. The Class field
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* is used for simple run-time type checking.
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*/
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#define INTEL_RB_CLASS 0x12345678
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/**
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* Return a gl_renderbuffer ptr casted to intel_renderbuffer.
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* NULL will be returned if the rb isn't really an intel_renderbuffer.
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* This is determined by checking the ClassID.
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*/
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static inline struct intel_renderbuffer *
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intel_renderbuffer(struct gl_renderbuffer *rb)
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{
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struct intel_renderbuffer *irb = (struct intel_renderbuffer *) rb;
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if (irb && irb->Base.Base.ClassID == INTEL_RB_CLASS)
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return irb;
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else
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return NULL;
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}
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/**
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* \brief Return the framebuffer attachment specified by attIndex.
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*
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* If the framebuffer lacks the specified attachment, then return null.
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*
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* If the attached renderbuffer is a wrapper, then return wrapped
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* renderbuffer.
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*/
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static inline struct intel_renderbuffer *
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intel_get_renderbuffer(struct gl_framebuffer *fb, gl_buffer_index attIndex)
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{
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struct gl_renderbuffer *rb;
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assert((unsigned)attIndex < ARRAY_SIZE(fb->Attachment));
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rb = fb->Attachment[attIndex].Renderbuffer;
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if (!rb)
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return NULL;
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return intel_renderbuffer(rb);
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}
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static inline mesa_format
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intel_rb_format(const struct intel_renderbuffer *rb)
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{
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return rb->Base.Base.Format;
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}
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extern struct intel_renderbuffer *
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intel_create_renderbuffer(mesa_format format);
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struct intel_renderbuffer *
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intel_create_private_renderbuffer(mesa_format format);
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struct gl_renderbuffer*
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intel_create_wrapped_renderbuffer(struct gl_context * ctx,
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int width, int height,
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mesa_format format);
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extern void
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intel_fbo_init(struct intel_context *intel);
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extern void
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intel_flip_renderbuffers(struct gl_framebuffer *fb);
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void
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intel_renderbuffer_set_draw_offset(struct intel_renderbuffer *irb);
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static inline uint32_t
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intel_renderbuffer_get_tile_offsets(struct intel_renderbuffer *irb,
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uint32_t *tile_x,
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uint32_t *tile_y)
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{
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return intel_miptree_get_tile_offsets(irb->mt, irb->mt_level, irb->mt_layer,
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tile_x, tile_y);
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}
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struct intel_region*
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intel_get_rb_region(struct gl_framebuffer *fb, GLuint attIndex);
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#endif /* INTEL_FBO_H */
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