xref: /external/mesa3d/src/gallium/drivers/llvmpipe/lp_limits.h

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/**
 * Implementation limits for LLVMpipe driver.
 */

#ifndef LP_LIMITS_H
#define LP_LIMITS_H


/**
 * Tile size (width and height). This needs to be a power of two.
 */
#define TILE_ORDER 6
#define TILE_SIZE (1 << TILE_ORDER)


/**
 * Max texture sizes
 */
#define LP_MAX_TEXTURE_SIZE (1 * 1024 * 1024 * 1024ULL)  /* 1GB for now */
#define LP_MAX_TEXTURE_2D_LEVELS 14  /* 8K x 8K for now */
#define LP_MAX_TEXTURE_3D_LEVELS 11  /* 1K x 1K x 1K for now */


/** This must be the larger of LP_MAX_TEXTURE_2D/3D_LEVELS */
#define LP_MAX_TEXTURE_LEVELS LP_MAX_TEXTURE_2D_LEVELS


/**
 * Max drawing surface size is the max texture size
 */
#define LP_MAX_HEIGHT (1 << (LP_MAX_TEXTURE_LEVELS - 1))
#define LP_MAX_WIDTH  (1 << (LP_MAX_TEXTURE_LEVELS - 1))


#define LP_MAX_THREADS 8


/**
 * Max bytes per scene.  This may be replaced by a runtime parameter.
 */
#define LP_MAX_SCENE_SIZE (512 * 1024 * 1024)

/**
 * Max number of shader variants (for all shaders combined,
 * per context) that will be kept around.
 */
#define LP_MAX_SHADER_VARIANTS 1024

/**
 * Max number of instructions (for all fragment shaders combined per context)
 * that will be kept around.
 */
#define LP_MAX_SHADER_INSTRUCTIONS (128*1024)

/**
 * Max number of setup variants that will be kept around.
 *
 * These are determined by the combination of the fragment shader
 * input signature and a small amount of rasterization state (eg
 * flatshading).  It is likely that many active fragment shaders will
 * share the same setup variant.
 */
#define LP_MAX_SETUP_VARIANTS 64

#endif /* LP_LIMITS_H */