diff options
Diffstat (limited to 'src/vcr.h')
| -rw-r--r-- | src/vcr.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/vcr.h b/src/vcr.h new file mode 100644 index 0000000..089e79a --- /dev/null +++ b/src/vcr.h @@ -0,0 +1,95 @@ +#ifndef _VCR_H +#define _VCR_H + +#include <stdio.h> /* for FILE* */ + +#ifdef USE_XLIB +#include <X11/extensions/Xrender.h> /* for Picture */ +#endif /* USE_XLIB */ + +#define VCR_DRAW_TEXT_N_STRS_MAX 512 +#define VCR_ROW_HEIGHT 15 /* this should always be larger than the font height */ + +typedef enum vcr_backend_type_t { +#ifdef USE_XLIB + VCR_BACKEND_TYPE_XLIB, +#endif /* USE_XLIB */ + VCR_BACKEND_TYPE_MEM, +} vcr_backend_type_t; + +/* there are very minimal backend events plumbed out from the X events */ +typedef enum vcr_backend_event_t { + VCR_BACKEND_EVENT_NOOP, + VCR_BACKEND_EVENT_RESIZE, + VCR_BACKEND_EVENT_REDRAW, + VCR_BACKEND_EVENT_QUIT, +} vcr_backend_event_t; + +typedef enum vcr_present_op_t { + VCR_PRESENT_OP_SRC, /* equivalent to XRender PictOpSrc */ + VCR_PRESENT_OP_OVER, /* equivaletn to XRender PictOpOver */ +} vcr_present_op_t; + +typedef enum vcr_layer_t { + VCR_LAYER_TEXT, /* the text layer for threadName/argv/wchan/state/pid etc. */ + VCR_LAYER_SHADOW, /* the shadow layer below the text (XXX: this must be kept after text) */ + VCR_LAYER_GRAPHA, /* the graph A layer below the shadow layer */ + VCR_LAYER_GRAPHB, /* the graph B layer below the shadow layer */ + VCR_LAYER_BG, /* the background layer (row separators, with milestone breaks */ +#if 0 + /* It should be reasonable to support up to eight layers, so there's room to grow. + * per-thread memory use seems like a good idea.. + */ + VCR_LAYER_UNUSED1, /* TODO */ + VCR_LAYER_UNUSED2, /* TODO */ + VCR_LAYER_UNUSED3, /* TODO */ +#endif + VCR_LAYER_CNT, +} vcr_layer_t; + +typedef struct vcr_backend_t vcr_backend_t; +typedef struct vcr_dest_t vcr_dest_t; +typedef struct vcr_t vcr_t; + +typedef struct vcr_str_t { + const char *str; + size_t len; +} vcr_str_t; + +vcr_backend_t * vcr_backend_new(vcr_backend_type_t backend, ...); +int vcr_backend_get_dimensions(vcr_backend_t *vbe, int *res_width, int *res_height); +int vcr_backend_poll(vcr_backend_t *vbe, int timeout); +vcr_backend_event_t vcr_backend_next_event(vcr_backend_t *vbe, int *res_width, int *res_height); +vcr_backend_t * vcr_backend_free(vcr_backend_t *vbe); + +#ifdef USE_XLIB +vcr_dest_t * vcr_dest_xwindow_new(vcr_backend_t *vbe, const char *name, unsigned width, unsigned height); +unsigned vcr_dest_xwindow_get_id(vcr_dest_t *dest); +vcr_dest_t * vcr_dest_xpicture_new(vcr_backend_t *vbe, Picture picture); +#endif /* USE_XLIB */ +#ifdef USE_PNG +vcr_dest_t * vcr_dest_png_new(vcr_backend_t *vbe, FILE *output); +#endif /* USE_PNG */ +vcr_dest_t * vcr_dest_free(vcr_dest_t *dest); + +vcr_t * vcr_new(vcr_backend_t *vbe, int *hierarchy_end_ptr, int *snowflakes_cnt_ptr); +vcr_t * vcr_free(vcr_t *vcr); +int vcr_resize_visible(vcr_t *vcr, int width, int height); +void vcr_draw_text(vcr_t *vcr, vcr_layer_t layer, int x, int row, const vcr_str_t *strs, int n_strs, int *res_width); +void vcr_draw_ortho_line(vcr_t *vcr, vcr_layer_t layer, int x1, int y1, int x2, int y2); +void vcr_mark_finish_line(vcr_t *vcr, vcr_layer_t layer, int row); +void vcr_draw_bar(vcr_t *vcr, vcr_layer_t layer, int row, double t, int min_height); +void vcr_clear_row(vcr_t *vcr, vcr_layer_t layer, int row, int x, int width); +void vcr_shift_below_row_up_one(vcr_t *vcr, int row); +void vcr_shift_below_row_down_one(vcr_t *vcr, int row); +void vcr_shadow_row(vcr_t *vcr, vcr_layer_t layer, int row); +void vcr_stash_row(vcr_t *vcr, vcr_layer_t layer, int row); +void vcr_unstash_row(vcr_t *vcr, vcr_layer_t layer, int row); +void vcr_advance_phase(vcr_t *vcr, int delta); +int vcr_compose(vcr_t *vcr); +#ifdef USE_XLIB +int vcr_get_composed_xdamage(vcr_t *vcr, XserverRegion *res_damaged_region); +#endif /* USE_XLIB */ +int vcr_present(vcr_t *vcr, vcr_present_op_t op, vcr_dest_t *dest, int x, int y, int width, int height); + +#endif /* _VCR_H */ |