75 lines
1.6 KiB
C
75 lines
1.6 KiB
C
#pragma once
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#include <stddef.h>
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#include <stdint.h>
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#define OWB_CONFIG_MAGIC 0x4f574243u /* OWBC */
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#define OWB_COMMAND_MAGIC 0x4f574245u /* OWBE */
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#define OWB_PROTOCOL_VERSION 3u
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#define OWB_MAX_STRING (16u * 1024u * 1024u)
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#define OWB_SHARED_MAGIC 0x4f574246u /* OWBF */
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#define OWB_SHARED_FRAME_FD 198
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#define OWB_SHARED_FRAME_SLOTS 2u
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struct owb_config_header {
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uint32_t magic;
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uint32_t version;
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uint32_t width;
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uint32_t height;
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uint32_t fps;
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uint32_t zoom_percent;
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uint32_t transparent;
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uint32_t hardware_acceleration;
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uint32_t url_length;
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uint32_t css_length;
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};
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struct owb_shared_frames {
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uint32_t magic;
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uint32_t version;
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uint32_t width;
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uint32_t height;
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uint32_t stride;
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uint32_t slot_count;
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uint64_t sequence[OWB_SHARED_FRAME_SLOTS];
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uint8_t pixels[1];
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};
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static inline size_t owb_frame_size(uint32_t width, uint32_t height)
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{
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return (size_t)width * (size_t)height * 4u;
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}
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static inline size_t owb_shared_size(uint32_t width, uint32_t height)
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{
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return offsetof(struct owb_shared_frames, pixels) +
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owb_frame_size(width, height) * OWB_SHARED_FRAME_SLOTS;
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}
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static inline uint8_t *owb_shared_slot(struct owb_shared_frames *shared, uint32_t slot)
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{
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return shared->pixels + owb_frame_size(shared->width, shared->height) * slot;
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}
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enum owb_command_type {
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OWB_MOUSE_MOVE = 1,
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OWB_MOUSE_CLICK = 2,
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OWB_MOUSE_WHEEL = 3,
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OWB_FOCUS = 4,
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OWB_KEY = 5,
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OWB_RELOAD = 6,
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};
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/* Fixed-size control messages keep the renderer's nonblocking parser simple. */
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struct owb_command {
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uint32_t magic;
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uint32_t type;
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int32_t x;
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int32_t y;
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int32_t value1;
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int32_t value2;
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uint32_t modifiers;
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uint32_t text_length;
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char text[64];
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};
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