/**************************************************************************
*
* Copyright 2009 VMware, Inc.
* 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 VMWARE 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.
*
**************************************************************************/
/**
* @file
* C - JIT interfaces
*
* @author Jose Fonseca <jfonseca@vmware.com>
*/
#ifndef LP_JIT_H
#define LP_JIT_H
#include "gallivm/lp_bld_struct.h"
#include "gallivm/lp_bld_limits.h"
#include "pipe/p_state.h"
#include "lp_texture.h"
struct lp_fragment_shader_variant;
struct llvmpipe_screen;
struct lp_jit_texture
{
uint32_t width; /* same as number of elements */
uint32_t height;
uint32_t depth; /* doubles as array size */
uint32_t first_level;
uint32_t last_level;
const void *base;
uint32_t row_stride[LP_MAX_TEXTURE_LEVELS];
uint32_t img_stride[LP_MAX_TEXTURE_LEVELS];
uint32_t mip_offsets[LP_MAX_TEXTURE_LEVELS];
};
struct lp_jit_sampler
{
float min_lod;
float max_lod;
float lod_bias;
float border_color[4];
};
struct lp_jit_viewport
{
float min_depth;
float max_depth;
};
enum {
LP_JIT_TEXTURE_WIDTH = 0,
LP_JIT_TEXTURE_HEIGHT,
LP_JIT_TEXTURE_DEPTH,
LP_JIT_TEXTURE_FIRST_LEVEL,
LP_JIT_TEXTURE_LAST_LEVEL,
LP_JIT_TEXTURE_BASE,
LP_JIT_TEXTURE_ROW_STRIDE,
LP_JIT_TEXTURE_IMG_STRIDE,
LP_JIT_TEXTURE_MIP_OFFSETS,
LP_JIT_TEXTURE_NUM_FIELDS /* number of fields above */
};
enum {
LP_JIT_SAMPLER_MIN_LOD,
LP_JIT_SAMPLER_MAX_LOD,
LP_JIT_SAMPLER_LOD_BIAS,
LP_JIT_SAMPLER_BORDER_COLOR,
LP_JIT_SAMPLER_NUM_FIELDS /* number of fields above */
};
enum {
LP_JIT_VIEWPORT_MIN_DEPTH,
LP_JIT_VIEWPORT_MAX_DEPTH,
LP_JIT_VIEWPORT_NUM_FIELDS /* number of fields above */
};
/**
* This structure is passed directly to the generated fragment shader.
*
* It contains the derived state.
*
* Changes here must be reflected in the lp_jit_context_* macros and
* lp_jit_init_types function. Changes to the ordering should be avoided.
*
* Only use types with a clear size and padding here, in particular prefer the
* stdint.h types to the basic integer types.
*/
struct lp_jit_context
{
const float *constants[LP_MAX_TGSI_CONST_BUFFERS];
int num_constants[LP_MAX_TGSI_CONST_BUFFERS];
float alpha_ref_value;
uint32_t stencil_ref_front, stencil_ref_back;
uint8_t *u8_blend_color;
float *f_blend_color;
struct lp_jit_viewport *viewports;
struct lp_jit_texture textures[PIPE_MAX_SHADER_SAMPLER_VIEWS];
struct lp_jit_sampler samplers[PIPE_MAX_SAMPLERS];
};
/**
* These enum values must match the position of the fields in the
* lp_jit_context struct above.
*/
enum {
LP_JIT_CTX_CONSTANTS = 0,
LP_JIT_CTX_NUM_CONSTANTS,
LP_JIT_CTX_ALPHA_REF,
LP_JIT_CTX_STENCIL_REF_FRONT,
LP_JIT_CTX_STENCIL_REF_BACK,
LP_JIT_CTX_U8_BLEND_COLOR,
LP_JIT_CTX_F_BLEND_COLOR,
LP_JIT_CTX_VIEWPORTS,
LP_JIT_CTX_TEXTURES,
LP_JIT_CTX_SAMPLERS,
LP_JIT_CTX_COUNT
};
#define lp_jit_context_constants(_gallivm, _ptr) \
lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CTX_CONSTANTS, "constants")
#define lp_jit_context_num_constants(_gallivm, _ptr) \
lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CTX_NUM_CONSTANTS, "num_constants")
#define lp_jit_context_alpha_ref_value(_gallivm, _ptr) \
lp_build_struct_get(_gallivm, _ptr, LP_JIT_CTX_ALPHA_REF, "alpha_ref_value")
#define lp_jit_context_stencil_ref_front_value(_gallivm, _ptr) \
lp_build_struct_get(_gallivm, _ptr, LP_JIT_CTX_STENCIL_REF_FRONT, "stencil_ref_front")
#define lp_jit_context_stencil_ref_back_value(_gallivm, _ptr) \
lp_build_struct_get(_gallivm, _ptr, LP_JIT_CTX_STENCIL_REF_BACK, "stencil_ref_back")
#define lp_jit_context_u8_blend_color(_gallivm, _ptr) \
lp_build_struct_get(_gallivm, _ptr, LP_JIT_CTX_U8_BLEND_COLOR, "u8_blend_color")
#define lp_jit_context_f_blend_color(_gallivm, _ptr) \
lp_build_struct_get(_gallivm, _ptr, LP_JIT_CTX_F_BLEND_COLOR, "f_blend_color")
#define lp_jit_context_viewports(_gallivm, _ptr) \
lp_build_struct_get(_gallivm, _ptr, LP_JIT_CTX_VIEWPORTS, "viewports")
#define lp_jit_context_textures(_gallivm, _ptr) \
lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CTX_TEXTURES, "textures")
#define lp_jit_context_samplers(_gallivm, _ptr) \
lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_CTX_SAMPLERS, "samplers")
struct lp_jit_thread_data
{
uint64_t vis_counter;
/*
* Non-interpolated rasterizer state passed through to the fragment shader.
*/
struct {
uint32_t viewport_index;
} raster_state;
};
enum {
LP_JIT_THREAD_DATA_COUNTER = 0,
LP_JIT_THREAD_DATA_RASTER_STATE_VIEWPORT_INDEX,
LP_JIT_THREAD_DATA_COUNT
};
#define lp_jit_thread_data_counter(_gallivm, _ptr) \
lp_build_struct_get_ptr(_gallivm, _ptr, LP_JIT_THREAD_DATA_COUNTER, "counter")
#define lp_jit_thread_data_raster_state_viewport_index(_gallivm, _ptr) \
lp_build_struct_get(_gallivm, _ptr, \
LP_JIT_THREAD_DATA_RASTER_STATE_VIEWPORT_INDEX, \
"raster_state.viewport_index")
/**
* typedef for fragment shader function
*
* @param context jit context
* @param x block start x
* @param y block start y
* @param facing is front facing
* @param a0 shader input a0
* @param dadx shader input dadx
* @param dady shader input dady
* @param color color buffer
* @param depth depth buffer
* @param mask mask of visible pixels in block
* @param thread_data task thread data
* @param stride color buffer row stride in bytes
* @param depth_stride depth buffer row stride in bytes
*/
typedef void
(*lp_jit_frag_func)(const struct lp_jit_context *context,
uint32_t x,
uint32_t y,
uint32_t facing,
const void *a0,
const void *dadx,
const void *dady,
uint8_t **color,
uint8_t *depth,
uint32_t mask,
struct lp_jit_thread_data *thread_data,
unsigned *stride,
unsigned depth_stride);
void
lp_jit_screen_cleanup(struct llvmpipe_screen *screen);
boolean
lp_jit_screen_init(struct llvmpipe_screen *screen);
void
lp_jit_init_types(struct lp_fragment_shader_variant *lp);
#endif /* LP_JIT_H */