143 lines
4.2 KiB
C
143 lines
4.2 KiB
C
#ifndef DRAW_H
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#define DRAW_H
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#include "gp.h"
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struct font;
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struct font_startup_receipt;
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struct draw_startup_receipt { i32 _; };
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struct draw_startup_receipt draw_startup(struct font_startup_receipt *font_sr);
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/* ========================== *
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* Material
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* ========================== */
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#define DRAW_MATERIAL_PARAMS(...) ((struct draw_material_params) { \
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.tint = COLOR_WHITE, \
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.clip = CLIP_ALL, \
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__VA_ARGS__ \
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})
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struct draw_material_params {
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struct xform xf;
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struct gp_resource *texture; /* Overrides sprite if set */
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struct sprite_tag sprite;
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struct clip_rect clip;
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u32 tint;
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b32 is_light;
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struct v3 light_emittance;
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};
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void draw_material(struct gp_render_sig *sig, struct draw_material_params params);
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/* ========================== *
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* Fill shapes
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* ========================== */
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void draw_poly_ex(struct gp_render_sig *sig, struct v2_array vertices, struct gp_indices indices, u32 color);
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void draw_poly(struct gp_render_sig *sig, struct v2_array points, u32 color);
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void draw_circle(struct gp_render_sig *sig, struct v2 pos, f32 radius, u32 color, u32 detail);
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void draw_quad(struct gp_render_sig *sig, struct quad quad, u32 color);
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/* ========================== *
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* Line shapes
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* ========================== */
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void draw_gradient_line(struct gp_render_sig *sig, struct v2 start, struct v2 end, f32 thickness, u32 start_color, u32 end_color);
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void draw_line(struct gp_render_sig *sig, struct v2 start, struct v2 end, f32 thickness, u32 color);
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void draw_ray(struct gp_render_sig *sig, struct v2 pos, struct v2 rel, f32 thickness, u32 color);
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void draw_poly_line(struct gp_render_sig *sig, struct v2_array points, b32 loop, f32 thickness, u32 color);
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void draw_circle_line(struct gp_render_sig *sig, struct v2 pos, f32 radius, f32 thickness, u32 color, u32 detail);
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void draw_quad_line(struct gp_render_sig *sig, struct quad quad, f32 thickness, u32 color);
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void draw_arrow_line(struct gp_render_sig *sig, struct v2 start, struct v2 end, f32 thickness, f32 arrowhead_height, u32 color);
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void draw_arrow_ray(struct gp_render_sig *sig, struct v2 pos, struct v2 rel, f32 thickness, f32 arrowhead_height, u32 color);
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void draw_collider_line(struct gp_render_sig *sig, struct collider_shape shape, struct xform shape_xf, f32 thickness, u32 color, u32 detail);
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/* ========================== *
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* Grid
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* ========================== */
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void draw_grid(struct gp_render_sig *sig, struct xform xf, u32 bg0_color, u32 bg1_color, u32 line_color, u32 x_color, u32 y_color, f32 thickness, f32 spacing, struct v2 offset);
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/* ========================== *
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* UI
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* ========================== */
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#define DRAW_UI_RECT_PARAMS(...) ((struct draw_ui_rect_params) { \
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.tint = COLOR_WHITE, \
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.clip = CLIP_ALL, \
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__VA_ARGS__ \
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})
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struct draw_ui_rect_params {
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struct xform xf;
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struct gp_resource *texture; /* Overrides sprite if set */
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struct sprite_tag sprite;
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struct clip_rect clip;
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u32 tint;
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};
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void draw_ui_rect(struct gp_render_sig *sig, struct draw_ui_rect_params params);
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/* ========================== *
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* Text
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* ========================== */
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#define DRAW_TEXT_PARAMS(...) ((struct draw_text_params) { \
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.scale = 1.0, \
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.alignment = DRAW_TEXT_ALIGNMENT_LEFT, \
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.offset_x = DRAW_TEXT_OFFSET_X_LEFT, \
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.offset_y = DRAW_TEXT_OFFSET_Y_TOP, \
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.color = COLOR_WHITE, \
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__VA_ARGS__ \
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})
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/* How is text aligned within its area */
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enum draw_text_alignment {
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DRAW_TEXT_ALIGNMENT_LEFT, /* Default */
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DRAW_TEXT_ALIGNMENT_CENTER,
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DRAW_TEXT_ALIGNMENT_RIGHT
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};
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/* How does the specified text position relate to the text area.
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* E.g. BOTTOM & RIGHT means the bottom-right of the text area will snap to
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* the specified position. */
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enum draw_text_offset_x {
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DRAW_TEXT_OFFSET_X_LEFT, /* Default */
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DRAW_TEXT_OFFSET_X_CENTER,
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DRAW_TEXT_OFFSET_X_RIGHT
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};
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enum draw_text_offset_y {
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DRAW_TEXT_OFFSET_Y_TOP, /* Default */
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DRAW_TEXT_OFFSET_Y_CENTER,
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DRAW_TEXT_OFFSET_Y_BOTTOM
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};
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struct draw_text_params {
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struct font *font;
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struct v2 pos;
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f32 scale;
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u32 color;
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enum draw_text_alignment alignment;
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enum draw_text_offset_x offset_x;
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enum draw_text_offset_y offset_y;
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struct string str;
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};
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struct rect draw_text(struct gp_render_sig *sig, struct draw_text_params params);
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#endif
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