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/* Copyright (c) 2002,2007-2009, Code Aurora Forum. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Code Aurora nor
* the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef __GSL_DRAWCTXT_H
#define __GSL_DRAWCTXT_H
//////////////////////////////////////////////////////////////////////////////
// Flags
//////////////////////////////////////////////////////////////////////////////
#define CTXT_FLAGS_NOT_IN_USE 0x00000000
#define CTXT_FLAGS_IN_USE 0x00000001
#define CTXT_FLAGS_STATE_SHADOW 0x00000010 // state shadow memory allocated
#define CTXT_FLAGS_GMEM_SHADOW 0x00000100 // gmem shadow memory allocated
#define CTXT_FLAGS_GMEM_SAVE 0x00000200 // gmem must be copied to shadow
#define CTXT_FLAGS_GMEM_RESTORE 0x00000400 // gmem can be restored from shadow
#define CTXT_FLAGS_SHADER_SAVE 0x00002000 // shader must be copied to shadow
#define CTXT_FLAGS_SHADER_RESTORE 0x00004000 // shader can be restored from shadow
//////////////////////////////////////////////////////////////////////////////
// types
//////////////////////////////////////////////////////////////////////////////
// ------------
// draw context
// ------------
typedef struct _gmem_shadow_t
{
gsl_memdesc_t gmemshadow; // Shadow buffer address
// 256 KB GMEM surface = 4 bytes-per-pixel x 256 pixels/row x 256 rows.
// width & height must be a multiples of 32, in case tiled textures are used.
unsigned int size; // Size of surface used to store GMEM
unsigned int width; // Width of surface used to store GMEM
unsigned int height; // Height of surface used to store GMEM
unsigned int pitch; // Pitch of surface used to store GMEM
int offset;
unsigned int offset_x;
unsigned int offset_y;
unsigned int gmem_offset_x;
unsigned int gmem_offset_y;
unsigned int* gmem_save_commands;
unsigned int* gmem_restore_commands;
unsigned int gmem_save[3];
unsigned int gmem_restore[3];
gsl_memdesc_t quad_vertices;
gsl_memdesc_t quad_texcoords;
} gmem_shadow_t;
#define GSL_MAX_GMEM_SHADOW_BUFFERS 2
typedef struct _gsl_drawctxt_t {
unsigned int pid;
gsl_flags_t flags;
gsl_context_type_t type;
gsl_memdesc_t gpustate;
unsigned int reg_save[3];
unsigned int reg_restore[3];
unsigned int shader_save[3];
unsigned int shader_fixup[3];
unsigned int shader_restore[3];
unsigned int chicken_restore[3];
gmem_shadow_t context_gmem_shadow; // Information of the GMEM shadow that is created in context create
gmem_shadow_t user_gmem_shadow[GSL_MAX_GMEM_SHADOW_BUFFERS]; // User defined GMEM shadow buffers
} gsl_drawctxt_t;
//////////////////////////////////////////////////////////////////////////////
// prototypes
//////////////////////////////////////////////////////////////////////////////
int kgsl_drawctxt_init(gsl_device_t *device);
int kgsl_drawctxt_close(gsl_device_t *device);
int kgsl_drawctxt_destroyall(gsl_device_t *device);
void kgsl_drawctxt_switch(gsl_device_t *device, gsl_drawctxt_t *drawctxt, gsl_flags_t flags);
int kgsl_drawctxt_create(gsl_device_t* device, gsl_context_type_t type, unsigned int *drawctxt_id, gsl_flags_t flags);
int kgsl_drawctxt_destroy(gsl_device_t* device, unsigned int drawctxt_id);
#endif // __GSL_DRAWCTXT_H
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