X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fdrivers%2Fdri%2Fi965%2Fintel_context.h;h=12f093319299227f50745d0d796d30544cf29459;hb=2e9fe0ca1223df75861b14b8dfbee45b1f78a558;hp=808512f7fd53ab37ba70933104dd51007b6e4a2a;hpb=38889f5221821acf08365d3f332680707d4b9b5f;p=mesa.git diff --git a/src/mesa/drivers/dri/i965/intel_context.h b/src/mesa/drivers/dri/i965/intel_context.h index 808512f7fd5..12f09331929 100644 --- a/src/mesa/drivers/dri/i965/intel_context.h +++ b/src/mesa/drivers/dri/i965/intel_context.h @@ -29,277 +29,285 @@ #define INTELCONTEXT_INC +#include +#include +#include "main/mtypes.h" +#include "main/mm.h" + +#ifdef __cplusplus +extern "C" { + /* Evil hack for using libdrm in a c++ compiler. */ + #define virtual virt +#endif -#include "mtypes.h" #include "drm.h" -#include "texmem.h" +#include "intel_bufmgr.h" #include "intel_screen.h" -#include "i830_common.h" +#include "intel_tex_obj.h" +#include "i915_drm.h" + +#ifdef __cplusplus + #undef virtual +#endif + #include "tnl/t_vertex.h" #define TAG(x) intel##x #include "tnl_dd/t_dd_vertex.h" #undef TAG -#define DV_PF_555 (1<<8) -#define DV_PF_565 (2<<8) -#define DV_PF_8888 (3<<8) - struct intel_region; struct intel_context; -typedef void (*intel_tri_func)(struct intel_context *, intelVertex *, intelVertex *, - intelVertex *); -typedef void (*intel_line_func)(struct intel_context *, intelVertex *, intelVertex *); -typedef void (*intel_point_func)(struct intel_context *, intelVertex *); +typedef void (*intel_tri_func) (struct intel_context *, intelVertex *, + intelVertex *, intelVertex *); +typedef void (*intel_line_func) (struct intel_context *, intelVertex *, + intelVertex *); +typedef void (*intel_point_func) (struct intel_context *, intelVertex *); -#define INTEL_FALLBACK_DRAW_BUFFER 0x1 -#define INTEL_FALLBACK_READ_BUFFER 0x2 -#define INTEL_FALLBACK_USER 0x4 -#define INTEL_FALLBACK_RENDERMODE 0x8 -#define INTEL_FALLBACK_TEXTURE 0x10 +#define INTEL_WRITE_PART 0x1 +#define INTEL_WRITE_FULL 0x2 +#define INTEL_READ 0x4 -extern void intelFallback( struct intel_context *intel, GLuint bit, GLboolean mode ); -#define FALLBACK( intel, bit, mode ) intelFallback( intel, bit, mode ) +#ifndef likely +#ifdef __GNUC__ +#define likely(expr) (__builtin_expect(expr, 1)) +#define unlikely(expr) (__builtin_expect(expr, 0)) +#else +#define likely(expr) (expr) +#define unlikely(expr) (expr) +#endif +#endif +struct intel_sync_object { + struct gl_sync_object Base; + /** Batch associated with this sync object */ + drm_intel_bo *bo; +}; -struct intel_texture_object -{ - struct gl_texture_object base; /* The "parent" object */ +struct brw_context; - /* The mipmap tree must include at least these levels once - * validated: - */ - GLuint firstLevel; - GLuint lastLevel; +struct intel_batchbuffer { + /** Current batchbuffer being queued up. */ + drm_intel_bo *bo; + /** Last BO submitted to the hardware. Used for glFinish(). */ + drm_intel_bo *last_bo; + /** BO for post-sync nonzero writes for gen6 workaround. */ + drm_intel_bo *workaround_bo; + bool need_workaround_flush; - GLuint dirty_images[6]; - GLuint dirty; + struct cached_batch_item *cached_items; - /* On validation any active images held in main memory or in other - * regions will be copied to this region and the old storage freed. - */ - struct intel_mipmap_tree *mt; -}; + uint16_t emit, total; + uint16_t used, reserved_space; + uint32_t *map; + uint32_t *cpu_map; +#define BATCH_SZ (8192*sizeof(uint32_t)) + uint32_t state_batch_offset; + bool is_blit; + bool needs_sol_reset; + struct { + uint16_t used; + int reloc_count; + } saved; +}; +/** + * intel_context is derived from Mesa's context class: struct gl_context. + */ struct intel_context { - GLcontext ctx; /* the parent class */ - - struct { - void (*destroy)( struct intel_context *intel ); - void (*emit_state)( struct intel_context *intel ); - void (*emit_invarient_state)( struct intel_context *intel ); - void (*lost_hardware)( struct intel_context *intel ); - void (*note_fence)( struct intel_context *intel, GLuint fence ); - void (*note_unlock)( struct intel_context *intel ); - void (*update_texture_state)( struct intel_context *intel ); - - void (*render_start)( struct intel_context *intel ); - void (*set_draw_region)( struct intel_context *intel, - struct intel_region *draw_region, - struct intel_region *depth_region ); - - GLuint (*flush_cmd)( void ); + struct gl_context ctx; /**< base class, must be first field */ + + struct + { + void (*destroy) (struct intel_context * intel); + void (*finish_batch) (struct intel_context * intel); + void (*new_batch) (struct intel_context * intel); + + void (*invalidate_state) (struct intel_context *intel, + GLuint new_state); + + void (*debug_batch)(struct intel_context *intel); + void (*annotate_aub)(struct intel_context *intel); + bool (*render_target_supported)(struct intel_context *intel, + struct gl_renderbuffer *rb); + + /** Can HiZ be enabled on a depthbuffer of the given format? */ + bool (*is_hiz_depth_format)(struct intel_context *intel, + gl_format format); + + void (*update_texture_surface)(struct gl_context *ctx, + unsigned unit, + uint32_t *binding_table, + unsigned surf_index); + void (*update_renderbuffer_surface)(struct brw_context *brw, + struct gl_renderbuffer *rb, + bool layered, + unsigned unit); + void (*update_null_renderbuffer_surface)(struct brw_context *brw, + unsigned unit); + void (*create_constant_surface)(struct brw_context *brw, + drm_intel_bo *bo, + uint32_t offset, + uint32_t size, + uint32_t *out_offset, + bool dword_pitch); + + /** + * Send the appropriate state packets to configure depth, stencil, and + * HiZ buffers (i965+ only) + */ + void (*emit_depth_stencil_hiz)(struct brw_context *brw, + struct intel_mipmap_tree *depth_mt, + uint32_t depth_offset, + uint32_t depthbuffer_format, + uint32_t depth_surface_type, + struct intel_mipmap_tree *stencil_mt, + bool hiz, bool separate_stencil, + uint32_t width, uint32_t height, + uint32_t tile_x, uint32_t tile_y); - void (*emit_flush)( struct intel_context *intel, - GLuint unused ); + } vtbl; - void (*aub_commands)( struct intel_context *intel, - GLuint offset, - const void *buf, - GLuint sz ); - void (*aub_dump_bmp)( struct intel_context *intel, GLuint buffer ); - void (*aub_wrap)( struct intel_context *intel ); - void (*aub_gtt_data)( struct intel_context *intel, - GLuint offset, - const void *src, - GLuint size, - GLuint aubtype, - GLuint aubsubtype); + GLuint NewGLState; + + dri_bufmgr *bufmgr; + unsigned int maxBatchSize; + /** + * Generation number of the hardware: 2 is 8xx, 3 is 9xx pre-965, 4 is 965. + */ + int gen; + int gt; + bool needs_ff_sync; + bool is_haswell; + bool is_baytrail; + bool is_g4x; + bool is_945; + bool has_separate_stencil; + bool must_use_separate_stencil; + bool has_hiz; + bool has_llc; + bool has_swizzling; - void (*reduced_primitive_state)( struct intel_context *intel, GLenum rprim ); + int urb_size; - GLboolean (*check_vertex_size)( struct intel_context *intel, GLuint expected ); + drm_intel_context *hw_ctx; - void (*invalidate_state)( struct intel_context *intel, GLuint new_state ); + struct intel_batchbuffer batch; - /* Metaops: - */ - void (*install_meta_state)( struct intel_context *intel ); - void (*leave_meta_state)( struct intel_context *intel ); - - void (*meta_draw_region)( struct intel_context *intel, - struct intel_region *draw_region, - struct intel_region *depth_region ); - - void (*meta_color_mask)( struct intel_context *intel, - GLboolean ); - - void (*meta_stencil_replace)( struct intel_context *intel, - GLuint mask, - GLuint clear ); - - void (*meta_depth_replace)( struct intel_context *intel ); - - void (*meta_texture_blend_replace) (struct intel_context * intel); - - void (*meta_no_stencil_write)( struct intel_context *intel ); - void (*meta_no_depth_write)( struct intel_context *intel ); - void (*meta_no_texture)( struct intel_context *intel ); - void (*meta_import_pixel_state) (struct intel_context * intel); - void (*meta_frame_buffer_texture)( struct intel_context *intel, - GLint xoff, GLint yoff ); - - void (*meta_draw_quad)(struct intel_context *intel, - GLfloat x0, GLfloat x1, - GLfloat y0, GLfloat y1, - GLfloat z, - GLubyte red, GLubyte green, - GLubyte blue, GLubyte alpha, - GLfloat s0, GLfloat s1, - GLfloat t0, GLfloat t1); + drm_intel_bo *first_post_swapbuffers_batch; + bool need_throttle; + bool no_batch_wrap; + /** + * Set if we're either a debug context or the INTEL_DEBUG=perf environment + * variable is set, this is the flag indicating to do expensive work that + * might lead to a perf_debug() call. + */ + bool perf_debug; + struct { + drm_intel_bo *bo; + GLuint offset; + uint32_t buffer_len; + uint32_t buffer_offset; + char buffer[4096]; + } upload; - } vtbl; + uint32_t max_gtt_map_object_size; - GLint refcount; - GLuint Fallback; - GLuint NewGLState; - - GLuint last_swap_fence; - GLuint second_last_swap_fence; - - GLboolean aub_wrap; GLuint stats_wm; - struct intel_batchbuffer *batch; - - GLubyte clear_chan[4]; - GLuint ClearColor; - GLuint ClearDepth; - - GLfloat depth_scale; - GLfloat polygon_offset_scale; /* dependent on depth_scale, bpp */ - GLuint depth_clear_mask; - GLuint stencil_clear_mask; - - GLboolean hw_stencil; - GLboolean hw_stipple; - GLboolean depth_buffer_is_float; - GLboolean no_hw; - GLboolean no_rast; - GLboolean thrashing; - GLboolean locked; - GLboolean strict_conformance; - GLboolean need_flush; + bool hw_stencil; + bool hw_stipple; + bool no_rast; + bool always_flush_batch; + bool always_flush_cache; + bool disable_throttling; + GLenum reduced_primitive; - - /* AGP memory buffer manager: + /** + * Set if rendering has occured to the drawable's front buffer. + * + * This is used in the DRI2 case to detect that glFlush should also copy + * the contents of the fake front buffer to the real front buffer. */ - struct bufmgr *bm; + bool front_buffer_dirty; - - /* State for intelvb.c and inteltris.c. + /** + * Track whether front-buffer rendering is currently enabled + * + * A separate flag is used to track this in order to support MRT more + * easily. */ - GLenum render_primitive; - GLenum reduced_primitive; + bool is_front_buffer_rendering; + /** + * Track whether front-buffer is the current read target. + * + * This is closely associated with is_front_buffer_rendering, but may + * be set separately. The DRI2 fake front buffer must be referenced + * either way. + */ + bool is_front_buffer_reading; - struct intel_region *front_region; - struct intel_region *back_region; - struct intel_region *draw_region; - struct intel_region *depth_region; + bool use_early_z; - /* These refer to the current draw (front vs. back) buffer: - */ - int drawX; /* origin of drawable in draw buffer */ - int drawY; - GLuint numClipRects; /* cliprects for that buffer */ - drm_clip_rect_t *pClipRects; - struct gl_texture_object *frame_buffer_texobj; - - GLboolean scissor; - drm_clip_rect_t draw_rect; - drm_clip_rect_t scissor_rect; - - drm_context_t hHWContext; - drmLock *driHwLock; int driFd; - __DRIdrawablePrivate *driDrawable; - __DRIscreenPrivate *driScreen; - intelScreenPrivate *intelScreen; - volatile drmI830Sarea *sarea; - - FILE *aub_file; - - GLuint lastStamp; + __DRIcontext *driContext; + struct intel_screen *intelScreen; + void (*saved_viewport)(struct gl_context * ctx, + GLint x, GLint y, GLsizei width, GLsizei height); /** * Configuration cache */ driOptionCache optionCache; - - /* VBI - */ - GLuint vbl_seq; - GLuint vblank_flags; - - int64_t swap_ust; - int64_t swap_missed_ust; - - GLuint swap_count; - GLuint swap_missed_count; }; -/* These are functions now: - */ -void LOCK_HARDWARE( struct intel_context *intel ); -void UNLOCK_HARDWARE( struct intel_context *intel ); - - #define SUBPIXEL_X 0.125 #define SUBPIXEL_Y 0.125 -/* ================================================================ - * Color packing: +/** + * Align a value down to an alignment value + * + * If \c value is not already aligned to the requested alignment value, it + * will be rounded down. + * + * \param value Value to be rounded + * \param alignment Alignment value to be used. This must be a power of two. + * + * \sa ALIGN() */ +#define ROUND_DOWN_TO(value, alignment) ((value) & ~(alignment - 1)) -#define INTEL_PACKCOLOR4444(r,g,b,a) \ - ((((a) & 0xf0) << 8) | (((r) & 0xf0) << 4) | ((g) & 0xf0) | ((b) >> 4)) - -#define INTEL_PACKCOLOR1555(r,g,b,a) \ - ((((r) & 0xf8) << 7) | (((g) & 0xf8) << 2) | (((b) & 0xf8) >> 3) | \ - ((a) ? 0x8000 : 0)) - -#define INTEL_PACKCOLOR565(r,g,b) \ - ((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3)) - -#define INTEL_PACKCOLOR8888(r,g,b,a) \ - ((a<<24) | (r<<16) | (g<<8) | b) - - -#define INTEL_PACKCOLOR(format, r, g, b, a) \ -(format == DV_PF_555 ? INTEL_PACKCOLOR1555(r,g,b,a) : \ - (format == DV_PF_565 ? INTEL_PACKCOLOR565(r,g,b) : \ - (format == DV_PF_8888 ? INTEL_PACKCOLOR8888(r,g,b,a) : \ - 0))) - +static INLINE uint32_t +U_FIXED(float value, uint32_t frac_bits) +{ + value *= (1 << frac_bits); + return value < 0 ? 0 : value; +} +static INLINE uint32_t +S_FIXED(float value, uint32_t frac_bits) +{ + return value * (1 << frac_bits); +} /* ================================================================ * From linux kernel i386 header files, copes with odd sizes better * than COPY_DWORDS would: + * XXX Put this in src/mesa/main/imports.h ??? */ #if defined(i386) || defined(__i386__) -static inline void * __memcpy(void * to, const void * from, size_t n) +static INLINE void * __memcpy(void * to, const void * from, size_t n) { int d0, d1, d2; __asm__ __volatile__( @@ -321,32 +329,6 @@ static inline void * __memcpy(void * to, const void * from, size_t n) #endif -/* The system memcpy (at least on ubuntu 5.10) has problems copying - * to agp (writecombined) memory from a source which isn't 64-byte - * aligned - there is a 4x performance falloff. - * - * The x86 __memcpy is immune to this but is slightly slower - * (10%-ish) than the system memcpy. - * - * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but - * isn't much faster than x86_memcpy for agp copies. - * - * TODO: switch dynamically. - */ -static inline void *do_memcpy( void *dest, const void *src, size_t n ) -{ - if ( (((unsigned long)src) & 63) || - (((unsigned long)dest) & 63)) { - return __memcpy(dest, src, n); - } - else - return memcpy(dest, src, n); -} - - - - - /* ================================================================ * Debugging: */ @@ -355,61 +337,100 @@ extern int INTEL_DEBUG; #define DEBUG_TEXTURE 0x1 #define DEBUG_STATE 0x2 #define DEBUG_IOCTL 0x4 -#define DEBUG_PRIMS 0x8 -#define DEBUG_VERTS 0x10 -#define DEBUG_FALLBACKS 0x20 -#define DEBUG_VERBOSE 0x40 -#define DEBUG_DRI 0x80 -#define DEBUG_DMA 0x100 -#define DEBUG_SANITY 0x200 -#define DEBUG_SYNC 0x400 -#define DEBUG_SLEEP 0x800 -#define DEBUG_PIXEL 0x1000 -#define DEBUG_STATS 0x2000 -#define DEBUG_TILE 0x4000 -#define DEBUG_SINGLE_THREAD 0x8000 -#define DEBUG_WM 0x10000 -#define DEBUG_URB 0x20000 -#define DEBUG_VS 0x40000 - - -#define PCI_CHIP_845_G 0x2562 -#define PCI_CHIP_I830_M 0x3577 -#define PCI_CHIP_I855_GM 0x3582 -#define PCI_CHIP_I865_G 0x2572 -#define PCI_CHIP_I915_G 0x2582 -#define PCI_CHIP_I915_GM 0x2592 -#define PCI_CHIP_I945_G 0x2772 -#define PCI_CHIP_I965_G 0x29A2 -#define PCI_CHIP_I965_Q 0x2992 -#define PCI_CHIP_I965_G_1 0x2982 -#define PCI_CHIP_I946_GZ 0x2972 -#define PCI_CHIP_I965_GM 0x2A02 - +#define DEBUG_BLIT 0x8 +#define DEBUG_MIPTREE 0x10 +#define DEBUG_PERF 0x20 +#define DEBUG_BATCH 0x80 +#define DEBUG_PIXEL 0x100 +#define DEBUG_BUFMGR 0x200 +#define DEBUG_REGION 0x400 +#define DEBUG_FBO 0x800 +#define DEBUG_GS 0x1000 +#define DEBUG_SYNC 0x2000 +#define DEBUG_PRIMS 0x4000 +#define DEBUG_VERTS 0x8000 +#define DEBUG_DRI 0x10000 +#define DEBUG_SF 0x20000 +#define DEBUG_STATS 0x100000 +#define DEBUG_WM 0x400000 +#define DEBUG_URB 0x800000 +#define DEBUG_VS 0x1000000 +#define DEBUG_CLIP 0x2000000 +#define DEBUG_AUB 0x4000000 +#define DEBUG_SHADER_TIME 0x8000000 +#define DEBUG_BLORP 0x10000000 +#define DEBUG_NO16 0x20000000 + +#ifdef HAVE_ANDROID_PLATFORM +#define LOG_TAG "INTEL-MESA" +#include +#ifndef ALOGW +#define ALOGW LOGW +#endif +#define dbg_printf(...) ALOGW(__VA_ARGS__) +#else +#define dbg_printf(...) printf(__VA_ARGS__) +#endif /* HAVE_ANDROID_PLATFORM */ + +#define DBG(...) do { \ + if (unlikely(INTEL_DEBUG & FILE_DEBUG_FLAG)) \ + dbg_printf(__VA_ARGS__); \ +} while(0) + +#define perf_debug(...) do { \ + static GLuint msg_id = 0; \ + if (unlikely(INTEL_DEBUG & DEBUG_PERF)) \ + dbg_printf(__VA_ARGS__); \ + if (intel->perf_debug) \ + _mesa_gl_debug(&intel->ctx, &msg_id, \ + MESA_DEBUG_TYPE_PERFORMANCE, \ + MESA_DEBUG_SEVERITY_MEDIUM, \ + __VA_ARGS__); \ +} while(0) + +#define WARN_ONCE(cond, fmt...) do { \ + if (unlikely(cond)) { \ + static bool _warned = false; \ + static GLuint msg_id = 0; \ + if (!_warned) { \ + fprintf(stderr, "WARNING: "); \ + fprintf(stderr, fmt); \ + _warned = true; \ + \ + _mesa_gl_debug(ctx, &msg_id, \ + MESA_DEBUG_TYPE_OTHER, \ + MESA_DEBUG_SEVERITY_HIGH, fmt); \ + } \ + } \ +} while (0) /* ================================================================ * intel_context.c: */ -extern GLboolean intelInitContext( struct intel_context *intel, - const __GLcontextModes *mesaVis, - __DRIcontextPrivate *driContextPriv, - void *sharedContextPrivate, - struct dd_function_table *functions ); +extern bool intelInitContext(struct intel_context *intel, + int api, + unsigned major_version, + unsigned minor_version, + const struct gl_config * mesaVis, + __DRIcontext * driContextPriv, + void *sharedContextPrivate, + struct dd_function_table *functions, + unsigned *dri_ctx_error); -extern void intelGetLock(struct intel_context *intel, GLuint flags); +extern void intelFinish(struct gl_context * ctx); +extern void _intel_flush(struct gl_context * ctx, const char *file, int line); -extern void intelInitState( GLcontext *ctx ); -extern void intelFinish( GLcontext *ctx ); -extern void intelFlush( GLcontext *ctx ); +#define intel_flush(ctx) _intel_flush(ctx, __FILE__, __LINE__) -extern void intelInitDriverFunctions( struct dd_function_table *functions ); +extern void intelInitDriverFunctions(struct dd_function_table *functions); + +void intel_init_syncobj_functions(struct dd_function_table *functions); /* ================================================================ * intel_state.c: */ -extern void intelInitStateFuncs( struct dd_function_table *functions ); #define COMPAREFUNC_ALWAYS 0 #define COMPAREFUNC_NEVER 0x1 @@ -463,66 +484,46 @@ extern void intelInitStateFuncs( struct dd_function_table *functions ); #define BLENDFACT_INV_CONST_ALPHA 0x0f #define BLENDFACT_MASK 0x0f +enum { + DRI_CONF_BO_REUSE_DISABLED, + DRI_CONF_BO_REUSE_ALL +}; -extern int intel_translate_compare_func( GLenum func ); -extern int intel_translate_stencil_op( GLenum op ); -extern int intel_translate_blend_factor( GLenum factor ); -extern int intel_translate_logic_op( GLenum opcode ); - - -/* ================================================================ - * intel_buffers.c: - */ -void intelInitBufferFuncs( struct dd_function_table *functions ); - -struct intel_region *intel_readbuf_region( struct intel_context *intel ); -struct intel_region *intel_drawbuf_region( struct intel_context *intel ); - -extern void intelWindowMoved( struct intel_context *intel ); - -extern GLboolean intel_intersect_cliprects( drm_clip_rect_t *dest, - const drm_clip_rect_t *a, - const drm_clip_rect_t *b ); - - -/* ================================================================ - * intel_pixel_copy.c: - */ -void intelCopyPixels(GLcontext * ctx, - GLint srcx, GLint srcy, - GLsizei width, GLsizei height, - GLint destx, GLint desty, GLenum type); - -GLboolean intel_check_blit_fragment_ops(GLcontext * ctx); +extern int intel_translate_shadow_compare_func(GLenum func); +extern int intel_translate_compare_func(GLenum func); +extern int intel_translate_stencil_op(GLenum op); +extern int intel_translate_logic_op(GLenum opcode); -void intelBitmap(GLcontext * ctx, - GLint x, GLint y, - GLsizei width, GLsizei height, - const struct gl_pixelstore_attrib *unpack, - const GLubyte * pixels); +void intel_update_renderbuffers(__DRIcontext *context, + __DRIdrawable *drawable); +void intel_prepare_render(struct intel_context *intel); -void intelInitExtensions(GLcontext *ctx, GLboolean enable_imaging); -#define _NEW_WINDOW_POS 0x40000000 +void +intel_resolve_for_dri2_flush(struct intel_context *intel, + __DRIdrawable *drawable); +void i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region, + uint32_t buffer_id); +void intel_init_texture_formats(struct gl_context *ctx); /*====================================================================== * Inline conversion functions. * These are better-typed than the macros used previously: */ -static inline struct intel_context *intel_context( GLcontext *ctx ) +static INLINE struct intel_context * +intel_context(struct gl_context * ctx) { - return (struct intel_context *)ctx; + return (struct intel_context *) ctx; } -static inline struct intel_texture_object *intel_texture_object( struct gl_texture_object *obj ) +static INLINE bool +is_power_of_two(uint32_t value) { - return (struct intel_texture_object *)obj; + return (value & (value - 1)) == 0; } -static inline struct intel_texture_image *intel_texture_image( struct gl_texture_image *img ) -{ - return (struct intel_texture_image *)img; +#ifdef __cplusplus } - #endif +#endif