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| /************************************************************************** |
| * |
| * Copyright 2006 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 INTEL_REGIONS_H |
| #define INTEL_REGIONS_H |
| |
| /** @file intel_regions.h |
| * |
| * Structure definitions and prototypes for intel_region handling, |
| * which is the basic structure for rectangular collections of pixels |
| * stored in a drm_intel_bo. |
| */ |
| |
| #include <stdbool.h> |
| #include <xf86drm.h> |
| |
| #include "main/mtypes.h" |
| #include "intel_bufmgr.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| struct brw_context; |
| struct intel_screen; |
| struct intel_buffer_object; |
| |
| /** |
| * A layer on top of the bufmgr buffers that adds a few useful things: |
| * |
| * - Refcounting for local buffer references. |
| * - Refcounting for buffer maps |
| * - Buffer dimensions - pitch and height. |
| * - Blitter commands for copying 2D regions between buffers. (really???) |
| */ |
| struct intel_region |
| { |
| drm_intel_bo *bo; /**< buffer manager's buffer */ |
| GLuint refcount; /**< Reference count for region */ |
| GLuint cpp; /**< bytes per pixel */ |
| GLuint width; /**< in pixels */ |
| GLuint height; /**< in pixels */ |
| GLuint pitch; /**< in bytes */ |
| |
| uint32_t tiling; /**< Which tiling mode the region is in */ |
| |
| uint32_t name; /**< Global name for the bo */ |
| }; |
| |
| |
| /* Allocate a refcounted region. Pointers to regions should only be |
| * copied by calling intel_reference_region(). |
| */ |
| struct intel_region *intel_region_alloc(struct intel_screen *screen, |
| uint32_t tiling, |
| GLuint cpp, GLuint width, |
| GLuint height, |
| bool expect_accelerated_upload); |
| |
| struct intel_region * |
| intel_region_alloc_for_handle(struct intel_screen *screen, |
| GLuint cpp, |
| GLuint width, GLuint height, GLuint pitch, |
| unsigned int handle, const char *name); |
| |
| struct intel_region * |
| intel_region_alloc_for_fd(struct intel_screen *screen, |
| GLuint cpp, |
| GLuint width, GLuint height, GLuint pitch, |
| int fd, const char *name); |
| |
| bool |
| intel_region_flink(struct intel_region *region, uint32_t *name); |
| |
| void intel_region_reference(struct intel_region **dst, |
| struct intel_region *src); |
| |
| void intel_region_release(struct intel_region **ib); |
| |
| void |
| intel_region_get_tile_masks(struct intel_region *region, |
| uint32_t *mask_x, uint32_t *mask_y, |
| bool map_stencil_as_y_tiled); |
| |
| uint32_t |
| intel_region_get_aligned_offset(struct intel_region *region, uint32_t x, |
| uint32_t y, bool map_stencil_as_y_tiled); |
| |
| /** |
| * Used with images created with image_from_names |
| * to help support planar images. |
| */ |
| struct intel_image_format { |
| int fourcc; |
| int components; |
| int nplanes; |
| struct { |
| int buffer_index; |
| int width_shift; |
| int height_shift; |
| uint32_t dri_format; |
| int cpp; |
| } planes[3]; |
| }; |
| |
| struct __DRIimageRec { |
| struct intel_region *region; |
| GLenum internal_format; |
| uint32_t dri_format; |
| GLuint format; |
| uint32_t offset; |
| |
| /* |
| * Need to save these here between calls to |
| * image_from_names and calls to image_from_planar. |
| */ |
| uint32_t strides[3]; |
| uint32_t offsets[3]; |
| struct intel_image_format *planar_format; |
| |
| /* particular miptree level */ |
| GLuint width; |
| GLuint height; |
| GLuint tile_x; |
| GLuint tile_y; |
| bool has_depthstencil; |
| |
| void *data; |
| }; |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif |