Latest compatible version of Classicube from the original GitHub repository (https://github.com/ClassiCube/ClassiCube) that can be compiled on Classicube for PowerMac PPC running Mac OS X 10.4.
This commit is contained in:
Andrei Alexandru
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src/Drawer2D.h
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133
src/Drawer2D.h
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#ifndef CC_DRAWER2D_H
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#define CC_DRAWER2D_H
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#include "Bitmap.h"
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#include "Constants.h"
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CC_BEGIN_HEADER
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/* Performs a variety of drawing operations on bitmaps, and converts bitmaps into textures.
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Copyright 2014-2025 ClassiCube | Licensed under BSD-3
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*/
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enum FONT_FLAGS { FONT_FLAGS_NONE = 0x00, FONT_FLAGS_BOLD = 0x01, FONT_FLAGS_UNDERLINE = 0x02, FONT_FLAGS_PADDING = 0x04 };
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struct FontDesc { void* handle; cc_uint16 size, flags; int height; };
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struct DrawTextArgs { cc_string text; struct FontDesc* font; cc_bool useShadow; };
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struct Context2D { struct Bitmap bmp; int width, height; void* meta; };
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struct Texture;
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struct IGameComponent;
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extern struct IGameComponent Drawer2D_Component;
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#define DRAWER2D_MAX_TEXT_LENGTH 256
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CC_VAR extern struct _Drawer2DData {
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/* Whether text should be drawn and measured using the currently set font bitmap */
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/* If false, then text is instead draw using platform/system fonts */
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cc_bool BitmappedText;
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/* Whether the shadows behind text (that uses shadows) is fully black */
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cc_bool BlackTextShadows;
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/* List of all colors (An A of 0 means the color is not used) */
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BitmapCol Colors[DRAWER2D_MAX_COLORS];
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} Drawer2D;
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#define Drawer2D_GetColor(c) Drawer2D.Colors[(cc_uint8)c]
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void DrawTextArgs_Make(struct DrawTextArgs* args, STRING_REF const cc_string* text, struct FontDesc* font, cc_bool useShadow);
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void DrawTextArgs_MakeEmpty(struct DrawTextArgs* args, struct FontDesc* font, cc_bool useShadow);
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/* Clamps the given rectangle to lie inside the bitmap */
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/* Returns false if rectangle is completely outside bitmap's rectangle */
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cc_bool Drawer2D_Clamp(struct Context2D* ctx, int* x, int* y, int* width, int* height);
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/* Allocates a new context for 2D drawing */
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/* Note: Allocates a power-of-2 sized backing bitmap equal to or greater than the given size */
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CC_API void Context2D_Alloc(struct Context2D* ctx, int width, int height);
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/* Allocates a new context for 2D drawing, using an existing bimap as backing bitmap */
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CC_API void Context2D_Wrap(struct Context2D* ctx, struct Bitmap* bmp);
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/* Frees/Releases a previously allocatedcontext for 2D drawing */
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CC_API void Context2D_Free(struct Context2D* ctx);
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/* Creates a texture consisting of the pixels from the backing bitmap of the given 2D context */
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CC_API void Context2D_MakeTexture(struct Texture* tex, struct Context2D* ctx);
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/* Draws text using the given font at the given coordinates */
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CC_API void Context2D_DrawText(struct Context2D* ctx, struct DrawTextArgs* args, int x, int y);
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/* Fills the given area using pixels from the source bitmap */
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CC_API void Context2D_DrawPixels(struct Context2D* ctx, int x, int y, struct Bitmap* src);
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/* Fills the area with the given color */
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CC_API void Context2D_Clear(struct Context2D* ctx, BitmapCol color,
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int x, int y, int width, int height);
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/* Fills the given area with a simple noisy pattern */
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/* Variation determines how 'visible/obvious' the noise is */
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CC_API void Gradient_Noise(struct Context2D* ctx, BitmapCol color, int variation,
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int x, int y, int width, int height);
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/* Fills the given area with a vertical gradient, linerarly interpolating from a to b */
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/* First drawn row is filled with 'a', while last drawn is filled with 'b' */
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CC_API void Gradient_Vertical(struct Context2D* ctx, BitmapCol a, BitmapCol b,
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int x, int y, int width, int height);
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/* Blends the given area with the given color */
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/* Note that this only blends RGB, A is not blended */
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CC_API void Gradient_Blend(struct Context2D* ctx, BitmapCol color, int blend,
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int x, int y, int width, int height);
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/* Returns how wide the given text would be when drawn */
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CC_API int Drawer2D_TextWidth(struct DrawTextArgs* args);
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/* Returns how tall the given text would be when drawn */
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/* NOTE: Height returned only depends on the font. (see Font_CalcHeight) */
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CC_API int Drawer2D_TextHeight(struct DrawTextArgs* args);
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/* Similar to Context2D_DrawText, but trims the text with trailing ".." if wider than maxWidth */
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void Drawer2D_DrawClippedText(struct Context2D* ctx, struct DrawTextArgs* args,
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int x, int y, int maxWidth);
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/* Creates a texture consisting only of the given text drawn onto it */
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/* NOTE: The returned texture is always padded up to nearest power of two dimensions */
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CC_API void Drawer2D_MakeTextTexture(struct Texture* tex, struct DrawTextArgs* args);
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/* Returns whether the given color code is used/valid */
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/* NOTE: This can change if the server defines custom color codes */
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cc_bool Drawer2D_ValidColorCodeAt(const cc_string* text, int i);
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/* Whether text is empty or consists purely of valid color codes */
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cc_bool Drawer2D_IsEmptyText(const cc_string* text);
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/* Copies all characters from str into src, except for used color codes */
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/* NOTE: Ampersands not followed by a used color code are still copied */
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void Drawer2D_WithoutColors(cc_string* str, const cc_string* src);
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/* Returns the last valid color code in the given input, or \0 if not found */
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char Drawer2D_LastColor(const cc_string* text, int start);
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/* Returns whether the color code is f, F or \0 */
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cc_bool Drawer2D_IsWhiteColor(char c);
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cc_bool Drawer2D_UNSAFE_NextPart(cc_string* left, cc_string* part, char* colorCode);
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/* Divides R/G/B by 4 */
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#define SHADOW_MASK (BitmapColor_R_Bits(0x3F) | BitmapColor_G_Bits(0x3F) | BitmapColor_B_Bits(0x3F))
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static CC_INLINE BitmapCol GetShadowColor(BitmapCol c) {
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if (Drawer2D.BlackTextShadows) return BITMAPCOLOR_BLACK;
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/* Initial layout: aaaa_aaaa|rrrr_rrrr|gggg_gggg|bbbb_bbbb */
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/* Shift right 2: 00aa_aaaa|aarr_rrrr|rrgg_gggg|ggbb_bbbb */
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/* And by 3f3f3f: 0000_0000|00rr_rrrr|00gg_gggg|00bb_bbbb */
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/* Or by alpha : aaaa_aaaa|00rr_rrrr|00gg_gggg|00bb_bbbb */
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return (c & BITMAPCOLOR_A_MASK) | ((c >> 2) & SHADOW_MASK);
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}
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/* Allocates a new instance of the default font using the given size and flags */
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/* Uses Font_MakeBitmapped or SysFont_MakeDefault depending on Drawer2D_BitmappedText */
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CC_API void Font_Make(struct FontDesc* desc, int size, int flags);
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/* Frees an allocated font */
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CC_API void Font_Free(struct FontDesc* desc);
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/* Returns the line height for drawing text using the given font */
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int Font_CalcHeight(const struct FontDesc* font, cc_bool useShadow);
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/* Adjusts height to be closer to system fonts */
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int Drawer2D_AdjHeight(int point);
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void Drawer2D_ReducePadding_Tex(struct Texture* tex, int point, int scale);
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void Drawer2D_ReducePadding_Height(int* height, int point, int scale);
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/* Quickly fills the given box region */
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void Drawer2D_Fill(struct Bitmap* bmp, int x, int y, int width, int height, BitmapCol color);
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/* Sets the bitmap used for drawing bitmapped fonts. (i.e. default.png) */
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/* The bitmap must be square and consist of a 16x16 tile layout */
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cc_bool Font_SetBitmapAtlas(struct Bitmap* bmp);
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/* Sets padding for a bitmapped font */
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void Font_SetPadding(struct FontDesc* desc, int amount);
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/* Initialises the given font for drawing bitmapped text using default.png */
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void Font_MakeBitmapped(struct FontDesc* desc, int size, int flags);
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CC_END_HEADER
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#endif
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