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-rw-r--r--include/mgl/gl.h3
-rw-r--r--include/mgl/gl_macro.h3
-rw-r--r--include/mgl/graphics/font.h34
-rw-r--r--include/mgl/graphics/font_char_map.h50
-rw-r--r--include/mgl/graphics/font_glyph.h14
-rw-r--r--include/mgl/graphics/rectangle.h2
-rw-r--r--include/mgl/graphics/texture.h10
-rw-r--r--include/mgl/system/fileutils.h6
8 files changed, 106 insertions, 16 deletions
diff --git a/include/mgl/gl.h b/include/mgl/gl.h
index fc3ad3c..75bc764 100644
--- a/include/mgl/gl.h
+++ b/include/mgl/gl.h
@@ -27,6 +27,7 @@ typedef struct {
void (*glGenTextures)(int n, unsigned int *textures);
void (*glDeleteTextures)(int n, const unsigned int *textures);
void (*glTexImage2D)(unsigned int target, int level, int internalFormat, int width, int height, int border, unsigned int format, unsigned int type, const void *pixels);
+ void (*glTexSubImage2D)(unsigned int target, int level, int xoffset, int yoffset, int width, int height, unsigned int format, unsigned int type, const void *pixels);
void (*glBindTexture)(unsigned int target, unsigned int texture);
void (*glTexParameteri)(unsigned int target, unsigned int pname, int param);
void (*glHint)(unsigned int target, unsigned int mode);
@@ -40,6 +41,7 @@ typedef struct {
void (*glPushMatrix)(void);
void (*glPopMatrix)(void);
void (*glLoadIdentity)(void);
+ void (*glLoadMatrixf)(const float *m);
void (*glTranslatef)(float x, float y, float z);
void (*glGenBuffers)(int n, unsigned int *buffers);
void (*glBindBuffer)(unsigned int target, unsigned int buffer);
@@ -69,6 +71,7 @@ typedef struct {
void (*glUniform2f)(int location, float v0, float v1);
unsigned int (*glGetError)(void);
const unsigned char* (*glGetString)(unsigned int name);
+ void (*glGetIntegerv)(unsigned int pname, int *params);
/* Optional*/
void (*glXSwapIntervalEXT)(Display * dpy, GLXDrawable drawable, int interval);
diff --git a/include/mgl/gl_macro.h b/include/mgl/gl_macro.h
index aa264ee..5e634df 100644
--- a/include/mgl/gl_macro.h
+++ b/include/mgl/gl_macro.h
@@ -29,6 +29,7 @@
#define GL_TEXTURE_MAG_FILTER 0x2800
#define GL_TEXTURE_MIN_FILTER 0x2801
#define GL_UNSIGNED_BYTE 0x1401
+#define GL_MAX_TEXTURE_SIZE 0x0D33
#define GL_ALPHA 0x1906
#define GL_LUMINANCE 0x1909
@@ -59,7 +60,9 @@
#define GL_QUAD_STRIP 0x0008
#define GL_POLYGON 0x0009
+#define GL_MODELVIEW 0x1700
#define GL_PROJECTION 0x1701
+#define GL_TEXTURE 0x1702
#define GL_STREAM_DRAW 0x88E0
#define GL_STATIC_DRAW 0x88E4
diff --git a/include/mgl/graphics/font.h b/include/mgl/graphics/font.h
index c4904ff..adcc8a7 100644
--- a/include/mgl/graphics/font.h
+++ b/include/mgl/graphics/font.h
@@ -1,37 +1,45 @@
#ifndef MGL_FONT_H
#define MGL_FONT_H
-#include "../system/vec.h"
+#include "../system/fileutils.h"
+#include "font_char_map.h"
#include "texture.h"
#include <stdint.h>
+typedef struct mgl_memory_mapped_file mgl_memory_mapped_file;
typedef struct mgl_font mgl_font;
-typedef struct {
- mgl_vec2f position;
- mgl_vec2f size;
- mgl_vec2f texture_position;
- mgl_vec2f texture_size;
- float advance;
-} mgl_font_glyph;
+typedef enum {
+ MGL_ATLAS_SECTION_INITIAL,
+ MGL_ATLAS_SECTION_RIGHT,
+ MGL_ATLAS_SECTION_BOTTOM
+} mgl_font_atlas_render_section;
typedef struct {
- unsigned char *atlas;
int width;
int height;
+ int prev_width;
+ int prev_height;
+ mgl_vec2i pointer_position;
+ mgl_font_atlas_render_section render_section;
} mgl_font_atlas;
struct mgl_font {
mgl_texture texture;
mgl_font_atlas font_atlas;
unsigned int character_size;
- void *packed_chars;
- uint32_t num_packed_chars;
+ mgl_font_char_map char_map;
+ int current_line_max_height;
+ void *font_info;
};
-int mgl_font_load_from_file(mgl_font *self, const char *filepath, unsigned int character_size);
+int mgl_font_load_from_file(mgl_font *self, const mgl_memory_mapped_file *mapped_file, unsigned int character_size);
void mgl_font_unload(mgl_font *self);
-int mgl_font_get_glyph(const mgl_font *self, uint32_t codepoint, mgl_font_glyph *glyph);
+/* Note: loads the glyph if it hasn't been loaded yet */
+int mgl_font_get_glyph(mgl_font *self, uint32_t codepoint, mgl_font_glyph *glyph);
+
+/* Returns the kerning */
+int mgl_font_get_kerning(const mgl_font *self, uint32_t prev_codepoint, uint32_t codepoint);
#endif /* MGL_FONT_H */
diff --git a/include/mgl/graphics/font_char_map.h b/include/mgl/graphics/font_char_map.h
new file mode 100644
index 0000000..1daf4a2
--- /dev/null
+++ b/include/mgl/graphics/font_char_map.h
@@ -0,0 +1,50 @@
+#ifndef MGL_FONT_CHAR_MAP_H
+#define MGL_FONT_CHAR_MAP_H
+
+#include "font_glyph.h"
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+
+typedef struct mgl_font_char_entry mgl_font_char_entry;
+typedef struct mgl_font_char_map mgl_font_char_map;
+
+struct mgl_font_char_entry {
+ uint32_t key;
+ mgl_font_glyph value;
+ mgl_font_char_entry *next;
+ /* TODO: Remove when fonts copy textures */
+ mgl_vec2i render_offset;
+ /* TODO: Remove when fonts copy textures */
+ bool rendered;
+};
+
+typedef struct {
+ mgl_font_char_map *char_map;
+ size_t index;
+ mgl_font_char_entry *value;
+} mgl_font_char_iterator;
+
+struct mgl_font_char_map {
+ mgl_font_char_entry **entries;
+ size_t size;
+ size_t capacity;
+};
+
+void mgl_font_char_map_init(mgl_font_char_map *self);
+void mgl_font_char_map_deinit(mgl_font_char_map *self);
+
+/*
+ |value| is copied.
+ |inserted_entry| is the newly allocated and inserted entry. the entry wont ever reallocate. may be set to NULL to ignore it.
+*/
+int mgl_font_char_map_insert(mgl_font_char_map *self, uint32_t key, const mgl_font_glyph *value, mgl_font_char_entry **inserted_entry);
+/* The returned value is only valid until the next insert */
+mgl_font_char_entry* mgl_font_char_map_get(const mgl_font_char_map *self, uint32_t key);
+void mgl_font_char_map_clear_rendered(mgl_font_char_map *self);
+
+/* Iterator value is NULL when the end has been reached */
+mgl_font_char_iterator mgl_font_char_map_begin(mgl_font_char_map *self);
+void mgl_font_char_iterator_next(mgl_font_char_iterator *self);
+
+#endif /* MGL_FONT_CHAR_MAP_H */
diff --git a/include/mgl/graphics/font_glyph.h b/include/mgl/graphics/font_glyph.h
new file mode 100644
index 0000000..0d9cb2d
--- /dev/null
+++ b/include/mgl/graphics/font_glyph.h
@@ -0,0 +1,14 @@
+#ifndef MGL_FONT_GLYPH_H
+#define MGL_FONT_GLYPH_H
+
+#include "../system/vec.h"
+
+typedef struct {
+ mgl_vec2i position;
+ mgl_vec2i size;
+ mgl_vec2i texture_position; /* In pixel space */
+ mgl_vec2i texture_size; /* In pixel space */
+ int advance;
+} mgl_font_glyph;
+
+#endif /* MGL_FONT_GLYPH_H */
diff --git a/include/mgl/graphics/rectangle.h b/include/mgl/graphics/rectangle.h
index 5bcc521..c48d108 100644
--- a/include/mgl/graphics/rectangle.h
+++ b/include/mgl/graphics/rectangle.h
@@ -7,9 +7,9 @@
typedef struct mgl_context mgl_context;
typedef struct {
- mgl_color color;
mgl_vec2f position;
mgl_vec2f size;
+ mgl_color color;
} mgl_rectangle;
void mgl_rectangle_draw(mgl_context *context, mgl_rectangle *rect);
diff --git a/include/mgl/graphics/texture.h b/include/mgl/graphics/texture.h
index 9e7a423..61ac273 100644
--- a/include/mgl/graphics/texture.h
+++ b/include/mgl/graphics/texture.h
@@ -19,18 +19,28 @@ struct mgl_texture {
int width;
int height;
mgl_texture_format format;
+ int max_width;
+ int max_height;
+ bool pixel_coordinates;
};
typedef struct {
bool compressed; /* false by default */
+ bool pixel_coordinates; /* false by default, texture coordinates are normalized */
} mgl_texture_load_options;
+int mgl_texture_init(mgl_texture *self);
/* |load_options| can be null, in which case the default options are used */
int mgl_texture_load_from_file(mgl_texture *self, const char *filepath, mgl_texture_load_options *load_options);
/* |load_options| can be null, in which case the default options are used */
int mgl_texture_load_from_image(mgl_texture *self, const mgl_image *image, mgl_texture_load_options *load_options);
/* |load_options| can be null, in which case the default options are used */
int mgl_texture_load_from_memory(mgl_texture *self, const unsigned char *data, int width, int height, mgl_image_format format, mgl_texture_load_options *load_options);
+int mgl_texture_update(mgl_texture *self, const unsigned char *data, int offset_x, int offset_y, int width, int height, mgl_image_format format);
+/* |load_options| can be null, in which case the default options are used */
+int mgl_texture_resize(mgl_texture *self, int new_width, int new_height, mgl_texture_load_options *load_options);
+/* If |texture| is NULL then no texture is used */
+void mgl_texture_use(const mgl_texture *texture);
void mgl_texture_unload(mgl_texture *self);
#endif /* MGL_TEXTURE_H */
diff --git a/include/mgl/system/fileutils.h b/include/mgl/system/fileutils.h
index 5e45cb3..5add345 100644
--- a/include/mgl/system/fileutils.h
+++ b/include/mgl/system/fileutils.h
@@ -4,6 +4,8 @@
#include <stddef.h>
#include <stdbool.h>
+typedef struct mgl_memory_mapped_file mgl_memory_mapped_file;
+
typedef struct {
unsigned char *data;
size_t size;
@@ -13,11 +15,11 @@ typedef struct {
bool null_terminated; /* false by default */
} mgl_file_load_options;
-typedef struct {
+struct mgl_memory_mapped_file {
void *data;
size_t size;
int fd;
-} mgl_memory_mapped_file;
+};
typedef struct {
bool readable; /* true by default */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 07:08:57 +0000