92 lines
2.5 KiB
C
92 lines
2.5 KiB
C
/*
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* Copyright (C) 2017 Kovid Goyal <kovid at kovidgoyal.net>
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*
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* Distributed under terms of the GPL3 license.
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*/
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#pragma once
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#include "data-types.h"
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typedef struct {
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unsigned char action, transmission_type, compressed, delete_action;
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uint32_t format, more, id, data_sz, data_offset;
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uint32_t width, height, x_offset, y_offset, data_height, data_width, num_cells, num_lines, cell_x_offset, cell_y_offset;
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int32_t z_index;
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size_t payload_sz;
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} GraphicsCommand;
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typedef struct {
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uint8_t *buf;
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size_t buf_capacity, buf_used;
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uint8_t *mapped_file;
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size_t mapped_file_sz;
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size_t data_sz;
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uint8_t *data;
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bool is_4byte_aligned;
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bool is_opaque;
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} LoadData;
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typedef struct {
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float left, top, right, bottom;
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} ImageRect;
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typedef struct {
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uint32_t src_width, src_height, src_x, src_y;
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uint32_t cell_x_offset, cell_y_offset, num_cols, num_rows, effective_num_rows, effective_num_cols;
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int32_t z_index;
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int32_t start_row, start_column;
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ImageRect src_rect;
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} ImageRef;
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typedef struct {
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uint32_t texture_id, client_id, width, height;
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size_t internal_id;
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bool data_loaded;
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LoadData load_data;
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ImageRef *refs;
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size_t refcnt, refcap;
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double atime;
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size_t used_storage;
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} Image;
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typedef struct {
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float vertices[16];
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uint32_t texture_id, group_count;
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int z_index;
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size_t image_id;
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} ImageRenderData;
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typedef struct {
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PyObject_HEAD
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size_t image_count, images_capacity, loading_image;
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GraphicsCommand last_init_graphics_command;
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Image *images;
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size_t count, capacity;
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ImageRenderData *render_data;
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bool layers_dirty;
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size_t num_of_negative_refs, num_of_positive_refs;
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unsigned int last_scrolled_by;
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size_t used_storage;
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} GraphicsManager;
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typedef struct {
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int32_t amt, limit;
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index_type margin_top, margin_bottom;
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bool has_margins;
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} ScrollData;
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GraphicsManager* grman_alloc();
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void grman_clear(GraphicsManager*, bool);
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const char* grman_handle_command(GraphicsManager *self, const GraphicsCommand *g, const uint8_t *payload, Cursor *c, bool *is_dirty);
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bool grman_update_layers(GraphicsManager *self, unsigned int scrolled_by, float screen_left, float screen_top, float dx, float dy, unsigned int num_cols, unsigned int num_rows);
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void grman_scroll_images(GraphicsManager *self, const ScrollData*);
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void grman_resize(GraphicsManager*, index_type, index_type, index_type, index_type);
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void grman_rescale(GraphicsManager *self, unsigned int old_cell_width, unsigned int old_cell_height);
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