87 lines
1.8 KiB
C
87 lines
1.8 KiB
C
/*
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* Copyright (c) 1993-1995 Argonaut Technologies Limited. All rights reserved.
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*
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* $Id: sbuffer.h 1.1 1997/12/10 16:46:26 jon Exp $
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* $Locker: $
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*
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* Stored buffer structure
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*/
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#ifndef _SBUFFER_H_
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#define _SBUFFER_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* The minimal description of a pixelmap required for rendering
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*/
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struct render_buffer {
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MSImemptr heap; /* Pointer to start of texture heap, if in one */
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MSImemptr base; /* 0,0 pixel */
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br_uint_32 width_b; /* In bytes */
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br_uint_32 width_p; /* In pixels */
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br_uint_32 height; /* In scanlines */
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br_uint_32 size;
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br_uint_32 bits; /* Bits per pixel */
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br_scalar u_range; /* BRender's U and V ranges for texture mapping */
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br_scalar v_range; /* (these have to be tinkered with, see sbuffer.c) */
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MSImemptr palette; /* Pointer to palette */
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MSImemptr palette_heap; /* Pointer to palette heap */
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br_boolean uncacheable; /* Impossible to feed to card */
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br_boolean on_card; /* Downloaded to card */
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br_uint_32 card_offset; /* Offset to texture in card memory */
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br_boolean upload; /* Needs uploading this frame */
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};
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/*
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* Flags
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*/
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enum {
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SBUF_SHARED = 0x0001, /* Data is shared with user */
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SBUF_PREFER_SHARE = 0x0002, /* User requests share explicitly */
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SBUF_ON_HEAP = 0x0004, /* Data is on a texture heap */
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};
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/*
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* Block structure
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*/
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typedef struct br_buffer_stored {
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/* Dispatch table */
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struct br_buffer_stored_dispatch *dispatch;
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/* Standard object identifier */
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char *identifier;
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/* Primitive library */
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struct br_primitive_library *plib;
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/* Flags */
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br_uint_32 flags;
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/* Reduced info about buffer */
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struct render_buffer buffer;
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/* Pixelmap which this belongs to */
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br_pixelmap *pixelmap;
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/* Heap block */
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void *heap_block;
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void *palette_heap_block;
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} br_buffer_stored;
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#ifdef __cplusplus
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};
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#endif
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#endif
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