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Code Issues Releases Activity

simplification of sysshared requirements

master
Allen Webster 2016-08-28 22:14:02 -04:00
parent ec27163c48
commit d61adebba2
10 changed files with 760 additions and 927 deletions
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22
4coder_custom.h
View File

@ -89,18 +89,13 @@ view_summary_zero(){
return(summary); return(summary);
} }
#define VIEW_ROUTINE_SIG(name) void name(struct Application_Links *app, int32_t view_id)
#define GET_BINDING_DATA(name) int32_t name(void *data, int32_t size)
#define HOOK_SIG(name) int32_t name(struct Application_Links *app) #define HOOK_SIG(name) int32_t name(struct Application_Links *app)
#define OPEN_FILE_HOOK_SIG(name) int32_t name(struct Application_Links *app, int32_t buffer_id) #define OPEN_FILE_HOOK_SIG(name) int32_t name(struct Application_Links *app, int32_t buffer_id)
#define SCROLL_RULE_SIG(name) int32_t name(float target_x, float target_y, float *scroll_x, float *scroll_y, int32_t view_id, int32_t is_new_target, float dt) #define SCROLL_RULE_SIG(name) int32_t name(float target_x, float target_y, float *scroll_x, float *scroll_y, int32_t view_id, int32_t is_new_target, float dt)
#define INPUT_FILTER_SIG(name) void name(Mouse_State *mouse) #define INPUT_FILTER_SIG(name) void name(Mouse_State *mouse)
typedef VIEW_ROUTINE_SIG(View_Routine_Function);
typedef GET_BINDING_DATA(Get_Binding_Data_Function);
typedef HOOK_SIG(Hook_Function); typedef HOOK_SIG(Hook_Function);
typedef OPEN_FILE_HOOK_SIG(Open_File_Hook_Function); typedef OPEN_FILE_HOOK_SIG(Open_File_Hook_Function);
typedef SCROLL_RULE_SIG(Scroll_Rule_Function); typedef SCROLL_RULE_SIG(Scroll_Rule_Function);
typedef INPUT_FILTER_SIG(Input_Filter_Function); typedef INPUT_FILTER_SIG(Input_Filter_Function);
@ -113,13 +108,13 @@ struct Application_Links;
#define VIEW_ROUTINE_SIG(name) void name(struct Application_Links *app, int32_t view_id)
#define GET_BINDING_DATA(name) int32_t name(void *data, int32_t size)
#define _GET_VERSION_SIG(n) int32_t n(int32_t maj, int32_t min, int32_t patch) #define _GET_VERSION_SIG(n) int32_t n(int32_t maj, int32_t min, int32_t patch)
typedef _GET_VERSION_SIG(_Get_Version_Function);
extern "C" _GET_VERSION_SIG(get_alpha_4coder_version){ typedef VIEW_ROUTINE_SIG(View_Routine_Function);
int32_t result = (maj == MAJOR && min == MINOR && patch == PATCH); typedef GET_BINDING_DATA(Get_Binding_Data_Function);
return(result); typedef _GET_VERSION_SIG(_Get_Version_Function);
}
struct Custom_API{ struct Custom_API{
View_Routine_Function *view_routine; View_Routine_Function *view_routine;
@ -127,6 +122,11 @@ struct Custom_API{
_Get_Version_Function *get_alpha_4coder_version; _Get_Version_Function *get_alpha_4coder_version;
}; };
extern "C" _GET_VERSION_SIG(get_alpha_4coder_version){
int32_t result = (maj == MAJOR && min == MINOR && patch == PATCH);
return(result);
}
// NOTE(allen): definitions for the buffer that communicates to 4ed.exe // NOTE(allen): definitions for the buffer that communicates to 4ed.exe
enum Binding_Unit_Type{ enum Binding_Unit_Type{

10
4coder_default_bindings.cpp
View File

@ -207,7 +207,7 @@ OPEN_FILE_HOOK_SIG(my_file_settings){
// //
// Right now it only has access to the mouse state, but it will be // Right now it only has access to the mouse state, but it will be
// extended to have access to the key presses soon. // extended to have access to the key presses soon.
static int suppressing_mouse = false; static int32_t suppressing_mouse = false;
INPUT_FILTER_SIG(my_suppress_mouse_filter){ INPUT_FILTER_SIG(my_suppress_mouse_filter){
if (suppressing_mouse){ if (suppressing_mouse){
@ -218,7 +218,7 @@ INPUT_FILTER_SIG(my_suppress_mouse_filter){
} }
static void static void
set_mouse_suppression(Application_Links *app, int suppress){ set_mouse_suppression(Application_Links *app, int32_t suppress){
if (suppress){ if (suppress){
suppressing_mouse = true; suppressing_mouse = true;
app->show_mouse_cursor(app, MouseCursorShow_Never); app->show_mouse_cursor(app, MouseCursorShow_Never);
@ -402,8 +402,8 @@ default_keys(Bind_Helper *context){
#ifndef NO_BINDING #ifndef NO_BINDING
extern "C" int extern "C" int32_t
get_bindings(void *data, int size){ get_bindings(void *data, int32_t size){
Bind_Helper context_ = begin_bind_helper(data, size); Bind_Helper context_ = begin_bind_helper(data, size);
Bind_Helper *context = &context_; Bind_Helper *context = &context_;
@ -418,7 +418,7 @@ get_bindings(void *data, int size){
default_keys(context); default_keys(context);
int result = end_bind_helper(context); int32_t result = end_bind_helper(context);
return(result); return(result);
} }

2
4coder_types.h
View File

@ -430,10 +430,8 @@ DOC_SEE(File_List)
struct File_Info{ struct File_Info{
/* DOC(This field is a null terminated string specifying the name of the file.) */ /* DOC(This field is a null terminated string specifying the name of the file.) */
char *filename; char *filename;
/* DOC(This field specifies the length of the filename string not counting the null terminator.) */ /* DOC(This field specifies the length of the filename string not counting the null terminator.) */
int32_t filename_len; int32_t filename_len;
/* DOC(This field indicates that the description is for a folder not a file.) */ /* DOC(This field indicates that the description is for a folder not a file.) */
int32_t folder; int32_t folder;
}; };

7
4ed_meta.h
View File

@ -29,18 +29,11 @@ typedef i32 b32;
typedef i16 b16; typedef i16 b16;
typedef i8 b8; typedef i8 b8;
typedef uint8_t byte;
typedef float real32; typedef float real32;
typedef double real64; typedef double real64;
typedef float f32; typedef float f32;
typedef double f64; typedef double f64;
struct Data{
byte *data;
i32 size;
};
#define external extern "C" #define external extern "C"
#define internal static #define internal static
#define globalvar static #define globalvar static

719
4ed_rendering.cpp
View File

@ -1,719 +0,0 @@
/*
* Mr. 4th Dimention - Allen Webster
*
* 12.17.2014
*
* Rendering layer for project codename "4ed"
*
*/
// TOP
inline void
draw_set_clip(Render_Target *target, i32_Rect clip_box){
glScissor(clip_box.x0,
target->height - clip_box.y1,
clip_box.x1 - clip_box.x0,
clip_box.y1 - clip_box.y0);
}
inline void
draw_bind_texture(Render_Target *target, i32 texid){
if (target->bound_texture != texid){
glBindTexture(GL_TEXTURE_2D, texid);
target->bound_texture = texid;
}
}
inline void
draw_set_color(Render_Target *target, u32 color){
if (target->color != color){
target->color = color;
Vec4 c = unpack_color4(color);
glColor4f(c.r, c.g, c.b, c.a);
}
}
inline void
draw_safe_push(Render_Target *target, i32 size, void *x){
if (size + target->size <= target->max){
memcpy(target->push_buffer + target->size, x, size);
target->size += size;
}
}
#define PutStruct(s,x) draw_safe_push(target, sizeof(s), &x)
internal void
draw_push_piece(Render_Target *target, Render_Piece_Combined piece){
PutStruct(Render_Piece_Header, piece.header);
switch (piece.header.type){
case piece_type_rectangle:
case piece_type_outline:
PutStruct(Render_Piece_Rectangle, piece.rectangle);
break;
case piece_type_gradient:
PutStruct(Render_Piece_Gradient, piece.gradient);
break;
case piece_type_glyph:
case piece_type_mono_glyph:
PutStruct(Render_Piece_Glyph, piece.glyph);
break;
case piece_type_mono_glyph_advance:
PutStruct(Render_Piece_Glyph_Advance, piece.glyph_advance);
break;
}
Assert(target->size <= target->max);
}
internal void
draw_push_piece_clip(Render_Target *target, i32_Rect clip_box){
// TODO(allen): optimize out if there are two clip box changes in a row
Render_Piece_Change_Clip clip;
Render_Piece_Header header;
header.type = piece_type_change_clip;
clip.box = clip_box;
PutStruct(Render_Piece_Header, header);
PutStruct(Render_Piece_Change_Clip, clip);
}
internal void
draw_push_clip(Render_Target *target, i32_Rect clip_box){
Assert(target->clip_top == -1 ||
fits_inside(clip_box, target->clip_boxes[target->clip_top]));
Assert(target->clip_top+1 < ArrayCount(target->clip_boxes));
target->clip_boxes[++target->clip_top] = clip_box;
draw_push_piece_clip(target, clip_box);
}
internal i32_Rect
draw_pop_clip(Render_Target *target){
i32_Rect result = {0};
i32_Rect clip_box = {0};
Assert(target->clip_top > 0);
result = target->clip_boxes[target->clip_top];
--target->clip_top;
clip_box = target->clip_boxes[target->clip_top];
draw_push_piece_clip(target, clip_box);
return(result);
}
#define ExtractStruct(s) ((s*)cursor); cursor += sizeof(s)
inline void
private_draw_rectangle(Render_Target *target, f32_Rect rect, u32 color){
draw_set_color(target, color);
draw_bind_texture(target, 0);
glBegin(GL_QUADS);
{
glVertex2f(rect.x0, rect.y0);
glVertex2f(rect.x0, rect.y1);
glVertex2f(rect.x1, rect.y1);
glVertex2f(rect.x1, rect.y0);
}
glEnd();
}
inline void
private_draw_rectangle_outline(Render_Target *target, f32_Rect rect, u32 color){
f32_Rect r;
r.x0 = rect.x0 + .5f;
r.y0 = rect.y0 + .5f;
r.x1 = rect.x1 - .5f;
r.y1 = rect.y1 - .5f;
draw_set_color(target, color);
draw_bind_texture(target, 0);
glBegin(GL_LINE_STRIP);
{
glVertex2f(r.x0, r.y0);
glVertex2f(r.x1, r.y0);
glVertex2f(r.x1, r.y1);
glVertex2f(r.x0, r.y1);
glVertex2f(r.x0, r.y0);
}
glEnd();
}
inline void
private_draw_gradient(Render_Target *target, f32_Rect rect,
Vec4 color_left, Vec4 color_right){
Vec4 cl = color_left;
Vec4 cr = color_right;
draw_bind_texture(target, 0);
glBegin(GL_QUADS);
{
glColor4f(cl.r, cl.g, cl.b, cl.a);
glVertex2f(rect.x0, rect.y0);
glVertex2f(rect.x0, rect.y1);
glColor4f(cr.r, cr.g, cr.b, cr.a);
glVertex2f(rect.x1, rect.y1);
glVertex2f(rect.x1, rect.y0);
}
glEnd();
}
struct Render_Quad{
f32 x0, y0, x1, y1;
f32 s0, t0, s1, t1;
};
inline Render_Quad
get_render_quad(Glyph_Data *b, i32 pw, i32 ph, float xpos, float ypos){
Render_Quad q;
float ipw = 1.0f / pw, iph = 1.0f / ph;
q.x0 = xpos + b->xoff;
q.y0 = ypos + b->yoff;
q.x1 = xpos + b->xoff2;
q.y1 = ypos + b->yoff2;
q.s0 = b->x0 * ipw;
q.t0 = b->y0 * iph;
q.s1 = b->x1 * ipw;
q.t1 = b->y1 * iph;
return(q);
}
inline Render_Quad
get_exact_render_quad(Glyph_Data *b, i32 pw, i32 ph, float xpos, float ypos){
Render_Quad q;
float ipw = 1.0f / pw, iph = 1.0f / ph;
q.x0 = xpos;
q.y0 = ypos + b->yoff;
q.x1 = xpos + (b->xoff2 - b->xoff);
q.y1 = ypos + b->yoff2;
q.s0 = b->x0 * ipw;
q.t0 = b->y0 * iph;
q.s1 = b->x1 * ipw;
q.t1 = b->y1 * iph;
return(q);
}
inline void
private_draw_glyph(Render_Target *target, Render_Font *font,
u8 character, f32 x, f32 y, u32 color){
Render_Quad q = get_render_quad(
font->glyphs + character,
font->tex_width, font->tex_height, x, y
);
draw_set_color(target, color);
draw_bind_texture(target, font->tex);
glBegin(GL_QUADS);
{
glTexCoord2f(q.s0, q.t1); glVertex2f(q.x0, q.y1);
glTexCoord2f(q.s1, q.t1); glVertex2f(q.x1, q.y1);
glTexCoord2f(q.s1, q.t0); glVertex2f(q.x1, q.y0);
glTexCoord2f(q.s0, q.t0); glVertex2f(q.x0, q.y0);
}
glEnd();
}
inline void
private_draw_glyph_mono(Render_Target *target, Render_Font *font, u8 character,
f32 x, f32 y, f32 advance, u32 color){
f32 left = font->glyphs[character].x0;
f32 right = font->glyphs[character].x1;
f32 width = (right - left);
f32 x_shift = (advance - width) * .5f;
x += x_shift;
Render_Quad q = get_exact_render_quad(
font->glyphs + character,
font->tex_width, font->tex_height, x, y
);
draw_set_color(target, color);
draw_bind_texture(target, font->tex);
glBegin(GL_QUADS);
{
glTexCoord2f(q.s0, q.t1); glVertex2f(q.x0, q.y1);
glTexCoord2f(q.s1, q.t1); glVertex2f(q.x1, q.y1);
glTexCoord2f(q.s1, q.t0); glVertex2f(q.x1, q.y0);
glTexCoord2f(q.s0, q.t0); glVertex2f(q.x0, q.y0);
}
glEnd();
}
inline void
private_draw_glyph_mono(Render_Target *target, Render_Font *font, u8 character,
real32 x, real32 y, u32 color){
private_draw_glyph_mono(target, font, character, x, y, (f32)font->advance, color);
}
internal void
launch_rendering(Render_Target *target){
byte *cursor = target->push_buffer;
byte *cursor_end = cursor + target->size;
for (; cursor < cursor_end;){
Render_Piece_Header *header = ExtractStruct(Render_Piece_Header);
i32 type = header->type;
switch (type){
case piece_type_rectangle:
{
Render_Piece_Rectangle *rectangle =
ExtractStruct(Render_Piece_Rectangle);
private_draw_rectangle(target, rectangle->rect, rectangle->color);
}break;
case piece_type_outline:
{
Render_Piece_Rectangle *rectangle =
ExtractStruct(Render_Piece_Rectangle);
private_draw_rectangle_outline(target, rectangle->rect, rectangle->color);
}break;
case piece_type_gradient:
{
Render_Piece_Gradient *gradient =
ExtractStruct(Render_Piece_Gradient);
private_draw_gradient(target, gradient->rect,
unpack_color4(gradient->left_color),
unpack_color4(gradient->right_color));
}break;
case piece_type_glyph:
{
Render_Piece_Glyph *glyph =
ExtractStruct(Render_Piece_Glyph);
Render_Font *font = get_font_info(&target->font_set, glyph->font_id)->font;
if (font)
private_draw_glyph(target, font, glyph->character,
glyph->pos.x, glyph->pos.y, glyph->color);
}break;
case piece_type_mono_glyph:
{
Render_Piece_Glyph *glyph =
ExtractStruct(Render_Piece_Glyph);
Render_Font *font = get_font_info(&target->font_set, glyph->font_id)->font;
if (font)
private_draw_glyph_mono(target, font, glyph->character,
glyph->pos.x, glyph->pos.y, glyph->color);
}break;
case piece_type_mono_glyph_advance:
{
Render_Piece_Glyph_Advance *glyph =
ExtractStruct(Render_Piece_Glyph_Advance);
Render_Font *font = get_font_info(&target->font_set, glyph->font_id)->font;
if (font)
private_draw_glyph_mono(target, font, glyph->character,
glyph->pos.x, glyph->pos.y,
glyph->advance, glyph->color);
}break;
case piece_type_change_clip:
{
Render_Piece_Change_Clip *clip =
ExtractStruct(Render_Piece_Change_Clip);
draw_set_clip(target, clip->box);
}break;
}
}
}
#undef ExtractStruct
internal void*
part_alloc(i32 size, void *context){
Partition *part = (Partition*)context;
void *result = push_block(part, size);
return(result);
}
internal void
part_free(void *ptr, void *context){
}
#define STBTT_malloc part_alloc
#define STBTT_free part_free
#define STB_TRUETYPE_IMPLEMENTATION
#include "stb_truetype.h"
internal i32
stb_font_load(Partition *part,
Render_Font *font_out,
char *filename_untranslated,
i32 pt_size,
i32 tab_width,
i32 oversample,
b32 store_texture){
char space_[1024];
String filename = make_fixed_width_string(space_);
b32 translate_success = sysshared_to_binary_path(&filename, filename_untranslated);
if (!translate_success) return 0;
i32 result = 1;
stbtt_packedchar chardata[256];
File_Data file = sysshared_load_file(filename.str);
if (!file.data.data){
result = 0;
}
else{
stbtt_fontinfo font;
if (!stbtt_InitFont(&font, (u8*)file.data.data, 0)){
result = 0;
}
else{
memset(font_out, 0, sizeof(*font_out));
i32 ascent, descent, line_gap;
stbtt_GetFontVMetrics(&font, &ascent, &descent, &line_gap);
f32 scale = stbtt_ScaleForPixelHeight(&font, (f32)pt_size);
f32 scaled_ascent = scale*ascent;
f32 scaled_descent = scale*descent;
f32 scaled_line_gap = scale*line_gap;
font_out->height = (i32)(scaled_ascent - scaled_descent + scaled_line_gap);
font_out->ascent = (i32)(scaled_ascent);
font_out->descent = (i32)(scaled_descent);
font_out->line_skip = (i32)(scaled_line_gap);
if (store_texture){
Temp_Memory temp = begin_temp_memory(part);
i32 tex_width = pt_size*16*oversample;
i32 tex_height = pt_size*16*oversample;
void *block = sysshared_push_block(part, tex_width * tex_height);
font_out->tex_width = tex_width;
font_out->tex_height = tex_height;
/////////////////////////////////////////////////////////////////
stbtt_pack_context spc;
if (stbtt_PackBegin(&spc, (u8*)block, tex_width, tex_height,
tex_width, 1, part)){
stbtt_PackSetOversampling(&spc, oversample, oversample);
if (!stbtt_PackFontRange(&spc, (u8*)file.data.data, 0,
STBTT_POINT_SIZE((f32)pt_size),
0, 128, chardata)){
result = 0;
}
stbtt_PackEnd(&spc);
}
else{
result = 0;
}
/////////////////////////////////////////////////////////////////
if (result){
GLuint font_tex;
glGenTextures(1, &font_tex);
glBindTexture(GL_TEXTURE_2D, font_tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, tex_width, tex_height, 0, GL_ALPHA, GL_UNSIGNED_BYTE, block);
font_out->tex = font_tex;
glBindTexture(GL_TEXTURE_2D, 0);
f32 *advance_data = font_out->advance_data;
Glyph_Data *glyphs = font_out->glyphs;
for (u8 code_point = 0; code_point < 128; ++code_point){
advance_data[code_point] = (f32)(CEIL32(chardata[code_point].xadvance));
glyphs[code_point].x0 = chardata[code_point].x0;
glyphs[code_point].y0 = chardata[code_point].y0;
glyphs[code_point].x1 = chardata[code_point].x1;
glyphs[code_point].y1 = chardata[code_point].y1;
glyphs[code_point].xoff = chardata[code_point].xoff;
glyphs[code_point].yoff = chardata[code_point].yoff + font_out->ascent;
glyphs[code_point].xoff2 = chardata[code_point].xoff2;
glyphs[code_point].yoff2 = chardata[code_point].yoff2 + font_out->ascent;
}
glyphs['\r'] = glyphs[' '];
advance_data['\r'] = advance_data[' '];
glyphs['\n'] = glyphs[' '];
advance_data['\n'] = advance_data[' '];
glyphs['\t'] = glyphs[' '];
advance_data['\t'] = advance_data[' ']*tab_width;
i32 max_advance = 0;
for (u8 code_point = 0; code_point < 128; ++code_point){
if (stbtt_FindGlyphIndex(&font, code_point) != 0){
font_out->glyphs[code_point].exists = 1;
i32 advance = CEIL32(advance_data[code_point]);
if (max_advance < advance){
max_advance = advance;
}
}
}
font_out->advance = max_advance - 1;
}
end_temp_memory(temp);
}
}
system_free_memory(file.data.data);
}
return(result);
}
// NOTE(allen): Thanks to insofaras.
// This is copy-pasted from some work he
// did to get free type working on Linux.
#undef internal
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_LCD_FILTER_H
#define internal static
internal u32
next_pow_of_2(u32 v){
--v;
v |= v >> 1;
v |= v >> 2;
v |= v >> 4;
v |= v >> 8;
v |= v >> 16;
return ++v;
}
#define NUM_GLYPHS 128
#define ENABLE_LCD_FILTER 0
internal b32
font_load_freetype(Partition *part,
Render_Font *rf,
char *filename,
i32 pt_size,
i32 tab_width,
b32 use_hinting){
memset(rf, 0, sizeof(*rf));
//TODO(inso): put stuff in linuxvars / init in main
FT_Library ft;
FT_Face face;
b32 use_lcd_filter = 0;
FT_Init_FreeType(&ft);
//NOTE(inso): i'm not sure the LCD filter looks better, and it doesn't work perfectly with the coloring stuff
// it will probably need shaders to work properly
#if ENABLE_LCD_FILTER
if(FT_Library_SetLcdFilter(ft, FT_LCD_FILTER_DEFAULT) == 0){
puts("LCD Filter on");
use_lcd_filter = 1;
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
}
#endif
FT_New_Face(ft, filename, 0, &face);
// set size & metrics
FT_Size_RequestRec_ size = {};
size.type = FT_SIZE_REQUEST_TYPE_NOMINAL;
size.height = pt_size << 6;
FT_Request_Size(face, &size);
rf->loaded = 1;
rf->ascent = CEIL32 (face->size->metrics.ascender / 64.0f);
rf->descent = FLOOR32 (face->size->metrics.descender / 64.0f);
rf->advance = CEIL32 (face->size->metrics.max_advance / 64.0f);
rf->height = CEIL32 (face->size->metrics.height / 64.0f);
rf->line_skip = rf->height - (rf->ascent - rf->descent);
rf->height -= rf->line_skip;
rf->line_skip = 0;
i32 max_glyph_w = face->size->metrics.x_ppem;
i32 max_glyph_h = rf->height;
i32 tex_width = 64;
i32 tex_height = 0;
// estimate upper bound on texture width
do {
tex_width *= 2;
float glyphs_per_row = ceilf(tex_width / (float) max_glyph_w);
float rows = ceilf(NUM_GLYPHS / glyphs_per_row);
tex_height = CEIL32(rows * (max_glyph_h + 2));
} while(tex_height > tex_width);
tex_height = next_pow_of_2(tex_height);
i32 pen_x = 0;
i32 pen_y = 0;
u32* pixels = push_array(part, u32, tex_width * tex_height);
memset(pixels, 0, tex_width * tex_height * sizeof(u32));
u32 ft_extra_flags = 0;
if (use_lcd_filter){
ft_extra_flags = FT_LOAD_TARGET_LCD;
}
else{
if (use_hinting){
// NOTE(inso): FT_LOAD_TARGET_LIGHT does hinting only vertically, which looks nicer imo
// maybe it could be exposed as an option for hinting, instead of just on/off.
ft_extra_flags = FT_LOAD_FORCE_AUTOHINT | FT_LOAD_TARGET_LIGHT;
}
else{
ft_extra_flags = (FT_LOAD_NO_AUTOHINT | FT_LOAD_NO_HINTING);
}
}
for(i32 i = 0; i < NUM_GLYPHS; ++i){
if(FT_Load_Char(face, i, FT_LOAD_RENDER | ft_extra_flags) != 0) continue;
i32 w = face->glyph->bitmap.width;
i32 h = face->glyph->bitmap.rows;
// lcd filter produces RGB bitmaps, need to account for the extra components
if(use_lcd_filter){
w /= 3;
}
// move to next line if necessary
if(pen_x + w >= tex_width){
pen_x = 0;
pen_y += (max_glyph_h + 2);
}
// set all this stuff the renderer needs
Glyph_Data* c = rf->glyphs + i;
c->x0 = (f32)(pen_x);
c->y0 = (f32)(pen_y);
c->x1 = (f32)(pen_x + w);
c->y1 = (f32)(pen_y + h + 1);
c->xoff = (f32)(face->glyph->bitmap_left);
c->yoff = (f32)(rf->ascent - face->glyph->bitmap_top);
c->xoff2 = w + c->xoff;
c->yoff2 = h + c->yoff + 1;
// TODO(allen): maybe advance data should be integers for a while...
// I require the actual values to be integers anyway... hmm...
rf->advance_data[i] = (f32)CEIL32(face->glyph->advance.x / 64.0f);
rf->glyphs[i].exists = 1;
i32 pitch = face->glyph->bitmap.pitch;
// write to texture atlas
for(i32 j = 0; j < h; ++j){
for(i32 i = 0; i < w; ++i){
i32 x = pen_x + i;
i32 y = pen_y + j;
if(use_lcd_filter){
#if 1
u8 a = face->glyph->bitmap.buffer[j * pitch + i * 3 + 1];
u8 r = face->glyph->bitmap.buffer[j * pitch + i * 3 + 0];
u8 b = face->glyph->bitmap.buffer[j * pitch + i * 3 + 2];
pixels[y * tex_width + x] = (a << 24) | (b << 16) | (a << 8) | r;
#else
u8 r = face->glyph->bitmap.buffer[j * pitch + i * 3];
u8 g = face->glyph->bitmap.buffer[j * pitch + i * 3 + 1];
u8 b = face->glyph->bitmap.buffer[j * pitch + i * 3 + 2];
u8 a = (u8)ROUND32((r + g + b) / 3.0f);
pixels[y * tex_width + x] = (a << 24) | (r << 16) | (g << 8) | b;
#endif
} else {
pixels[y * tex_width + x] = face->glyph->bitmap.buffer[j * pitch + i] * 0x1010101;
}
}
}
pen_x = CEIL32(c->x1 + 1);
}
Glyph_Data space_glyph = rf->glyphs[' '];
f32 space_width = rf->advance_data[' '];
rf->glyphs['\r'] = space_glyph;
rf->advance_data['\r'] = space_width;
rf->glyphs['\n'] = space_glyph;
rf->advance_data['\n'] = space_width;
rf->glyphs['\t'] = space_glyph;
rf->advance_data['\t'] = space_width*tab_width;
FT_Done_FreeType(ft);
tex_height = next_pow_of_2(pen_y + max_glyph_h + 2);
rf->tex_width = tex_width;
rf->tex_height = tex_height;
// upload texture
glGenTextures(1, &rf->tex);
glBindTexture(GL_TEXTURE_2D, rf->tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
if(use_lcd_filter){
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex_width, tex_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
} else {
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, tex_width, tex_height, 0, GL_ALPHA, GL_UNSIGNED_INT, pixels);
}
glBindTexture(GL_TEXTURE_2D, 0);
return 1;
}
internal
Release_Font_Sig(draw_release_font){
glDeleteTextures(1, &font->tex);
font->tex = 0;
}
// BOTTOM

2
4ed_rendering.h
View File

@ -164,7 +164,7 @@ struct Render_Target{
u32 color; u32 color;
// TODO(allen): change this to a Partition // TODO(allen): change this to a Partition
byte *push_buffer; char *push_buffer;
i32 size, max; i32 size, max;
// TODO(allen): rename this to font_partition // TODO(allen): rename this to font_partition

2
filetrack/4tech_file_track_win32.c
View File

@ -17,7 +17,7 @@ Created on: 20.07.2016
#include "4tech_file_track_general.c" #include "4tech_file_track_general.c"
#include <Windows.h> //#include <Windows.h>
typedef struct { typedef struct {
char result[2048]; char result[2048];

752
system_shared.cpp
View File

@ -9,39 +9,40 @@
// TOP // TOP
//
// General shared pieces
//
internal File_Data internal File_Data
sysshared_load_file(char *filename){ sysshared_load_file(char *filename){
File_Data result = {0}; File_Data result = {0};
File_Loading loading = Plat_Handle handle = {0};
system_file_load_begin(filename); if (system_load_handle(filename, &handle)){
u32 size = system_load_size(handle);
result.got_file = loading.exists;
if (loading.size > 0){
result.data.size = loading.size;
result.data.data = (byte*)system_get_memory(result.data.size);
if (!result.data.data){ result.got_file = 1;
system_file_load_end(loading, 0); if (size > 0){
result = file_data_zero(); result.size = size;
} result.data = (char*)system_get_memory(size+1);
else{
if (!system_file_load_end(loading, (char*)result.data.data)){ if (!result.data){
system_free_memory(result.data.data);
result = file_data_zero(); result = file_data_zero();
} }
else{
if (!system_load_file(handle, result.data, size)){
system_free_memory(result.data);
result = file_data_zero();
}
}
} }
system_load_close(handle);
} }
return(result); return(result);
} }
internal b32
sysshared_save_file(char *filename, char *data, i32 size){
return(system_file_save(filename, data, size));
}
internal b32 internal b32
usable_ascii(char c){ usable_ascii(char c){
b32 result = 1; b32 result = 1;
@ -116,5 +117,716 @@ sysshared_to_binary_path(String *out_filename, char *filename){
return (translate_success); return (translate_success);
} }
//
// Rendering
//
inline void
draw_set_clip(Render_Target *target, i32_Rect clip_box){
glScissor(clip_box.x0,
target->height - clip_box.y1,
clip_box.x1 - clip_box.x0,
clip_box.y1 - clip_box.y0);
}
inline void
draw_bind_texture(Render_Target *target, i32 texid){
if (target->bound_texture != texid){
glBindTexture(GL_TEXTURE_2D, texid);
target->bound_texture = texid;
}
}
inline void
draw_set_color(Render_Target *target, u32 color){
if (target->color != color){
target->color = color;
Vec4 c = unpack_color4(color);
glColor4f(c.r, c.g, c.b, c.a);
}
}
inline void
draw_safe_push(Render_Target *target, i32 size, void *x){
if (size + target->size <= target->max){
memcpy(target->push_buffer + target->size, x, size);
target->size += size;
}
}
#define PutStruct(s,x) draw_safe_push(target, sizeof(s), &x)
internal void
draw_push_piece(Render_Target *target, Render_Piece_Combined piece){
PutStruct(Render_Piece_Header, piece.header);
switch (piece.header.type){
case piece_type_rectangle:
case piece_type_outline:
PutStruct(Render_Piece_Rectangle, piece.rectangle);
break;
case piece_type_gradient:
PutStruct(Render_Piece_Gradient, piece.gradient);
break;
case piece_type_glyph:
case piece_type_mono_glyph:
PutStruct(Render_Piece_Glyph, piece.glyph);
break;
case piece_type_mono_glyph_advance:
PutStruct(Render_Piece_Glyph_Advance, piece.glyph_advance);
break;
}
Assert(target->size <= target->max);
}
internal void
draw_push_piece_clip(Render_Target *target, i32_Rect clip_box){
// TODO(allen): optimize out if there are two clip box changes in a row
Render_Piece_Change_Clip clip;
Render_Piece_Header header;
header.type = piece_type_change_clip;
clip.box = clip_box;
PutStruct(Render_Piece_Header, header);
PutStruct(Render_Piece_Change_Clip, clip);
}
internal void
draw_push_clip(Render_Target *target, i32_Rect clip_box){
Assert(target->clip_top == -1 ||
fits_inside(clip_box, target->clip_boxes[target->clip_top]));
Assert(target->clip_top+1 < ArrayCount(target->clip_boxes));
target->clip_boxes[++target->clip_top] = clip_box;
draw_push_piece_clip(target, clip_box);
}
internal i32_Rect
draw_pop_clip(Render_Target *target){
i32_Rect result = {0};
i32_Rect clip_box = {0};
Assert(target->clip_top > 0);
result = target->clip_boxes[target->clip_top];
--target->clip_top;
clip_box = target->clip_boxes[target->clip_top];
draw_push_piece_clip(target, clip_box);
return(result);
}
#define ExtractStruct(s) ((s*)cursor); cursor += sizeof(s)
inline void
private_draw_rectangle(Render_Target *target, f32_Rect rect, u32 color){
draw_set_color(target, color);
draw_bind_texture(target, 0);
glBegin(GL_QUADS);
{
glVertex2f(rect.x0, rect.y0);
glVertex2f(rect.x0, rect.y1);
glVertex2f(rect.x1, rect.y1);
glVertex2f(rect.x1, rect.y0);
}
glEnd();
}
inline void
private_draw_rectangle_outline(Render_Target *target, f32_Rect rect, u32 color){
f32_Rect r;
r.x0 = rect.x0 + .5f;
r.y0 = rect.y0 + .5f;
r.x1 = rect.x1 - .5f;
r.y1 = rect.y1 - .5f;
draw_set_color(target, color);
draw_bind_texture(target, 0);
glBegin(GL_LINE_STRIP);
{
glVertex2f(r.x0, r.y0);
glVertex2f(r.x1, r.y0);
glVertex2f(r.x1, r.y1);
glVertex2f(r.x0, r.y1);
glVertex2f(r.x0, r.y0);
}
glEnd();
}
inline void
private_draw_gradient(Render_Target *target, f32_Rect rect,
Vec4 color_left, Vec4 color_right){
Vec4 cl = color_left;
Vec4 cr = color_right;
draw_bind_texture(target, 0);
glBegin(GL_QUADS);
{
glColor4f(cl.r, cl.g, cl.b, cl.a);
glVertex2f(rect.x0, rect.y0);
glVertex2f(rect.x0, rect.y1);
glColor4f(cr.r, cr.g, cr.b, cr.a);
glVertex2f(rect.x1, rect.y1);
glVertex2f(rect.x1, rect.y0);
}
glEnd();
}
struct Render_Quad{
f32 x0, y0, x1, y1;
f32 s0, t0, s1, t1;
};
inline Render_Quad
get_render_quad(Glyph_Data *b, i32 pw, i32 ph, float xpos, float ypos){
Render_Quad q;
float ipw = 1.0f / pw, iph = 1.0f / ph;
q.x0 = xpos + b->xoff;
q.y0 = ypos + b->yoff;
q.x1 = xpos + b->xoff2;
q.y1 = ypos + b->yoff2;
q.s0 = b->x0 * ipw;
q.t0 = b->y0 * iph;
q.s1 = b->x1 * ipw;
q.t1 = b->y1 * iph;
return(q);
}
inline Render_Quad
get_exact_render_quad(Glyph_Data *b, i32 pw, i32 ph, float xpos, float ypos){
Render_Quad q;
float ipw = 1.0f / pw, iph = 1.0f / ph;
q.x0 = xpos;
q.y0 = ypos + b->yoff;
q.x1 = xpos + (b->xoff2 - b->xoff);
q.y1 = ypos + b->yoff2;
q.s0 = b->x0 * ipw;
q.t0 = b->y0 * iph;
q.s1 = b->x1 * ipw;
q.t1 = b->y1 * iph;
return(q);
}
inline void
private_draw_glyph(Render_Target *target, Render_Font *font,
u8 character, f32 x, f32 y, u32 color){
Render_Quad q = get_render_quad(
font->glyphs + character,
font->tex_width, font->tex_height, x, y
);
draw_set_color(target, color);
draw_bind_texture(target, font->tex);
glBegin(GL_QUADS);
{
glTexCoord2f(q.s0, q.t1); glVertex2f(q.x0, q.y1);
glTexCoord2f(q.s1, q.t1); glVertex2f(q.x1, q.y1);
glTexCoord2f(q.s1, q.t0); glVertex2f(q.x1, q.y0);
glTexCoord2f(q.s0, q.t0); glVertex2f(q.x0, q.y0);
}
glEnd();
}
inline void
private_draw_glyph_mono(Render_Target *target, Render_Font *font, u8 character,
f32 x, f32 y, f32 advance, u32 color){
f32 left = font->glyphs[character].x0;
f32 right = font->glyphs[character].x1;
f32 width = (right - left);
f32 x_shift = (advance - width) * .5f;
x += x_shift;
Render_Quad q = get_exact_render_quad(
font->glyphs + character,
font->tex_width, font->tex_height, x, y
);
draw_set_color(target, color);
draw_bind_texture(target, font->tex);
glBegin(GL_QUADS);
{
glTexCoord2f(q.s0, q.t1); glVertex2f(q.x0, q.y1);
glTexCoord2f(q.s1, q.t1); glVertex2f(q.x1, q.y1);
glTexCoord2f(q.s1, q.t0); glVertex2f(q.x1, q.y0);
glTexCoord2f(q.s0, q.t0); glVertex2f(q.x0, q.y0);
}
glEnd();
}
inline void
private_draw_glyph_mono(Render_Target *target, Render_Font *font, u8 character,
real32 x, real32 y, u32 color){
private_draw_glyph_mono(target, font, character, x, y, (f32)font->advance, color);
}
internal void
launch_rendering(Render_Target *target){
char *cursor = target->push_buffer;
char *cursor_end = cursor + target->size;
for (; cursor < cursor_end;){
Render_Piece_Header *header = ExtractStruct(Render_Piece_Header);
i32 type = header->type;
switch (type){
case piece_type_rectangle:
{
Render_Piece_Rectangle *rectangle =
ExtractStruct(Render_Piece_Rectangle);
private_draw_rectangle(target, rectangle->rect, rectangle->color);
}break;
case piece_type_outline:
{
Render_Piece_Rectangle *rectangle =
ExtractStruct(Render_Piece_Rectangle);
private_draw_rectangle_outline(target, rectangle->rect, rectangle->color);
}break;
case piece_type_gradient:
{
Render_Piece_Gradient *gradient =
ExtractStruct(Render_Piece_Gradient);
private_draw_gradient(target, gradient->rect,
unpack_color4(gradient->left_color),
unpack_color4(gradient->right_color));
}break;
case piece_type_glyph:
{
Render_Piece_Glyph *glyph =
ExtractStruct(Render_Piece_Glyph);
Render_Font *font = get_font_info(&target->font_set, glyph->font_id)->font;
if (font)
private_draw_glyph(target, font, glyph->character,
glyph->pos.x, glyph->pos.y, glyph->color);
}break;
case piece_type_mono_glyph:
{
Render_Piece_Glyph *glyph =
ExtractStruct(Render_Piece_Glyph);
Render_Font *font = get_font_info(&target->font_set, glyph->font_id)->font;
if (font)
private_draw_glyph_mono(target, font, glyph->character,
glyph->pos.x, glyph->pos.y, glyph->color);
}break;
case piece_type_mono_glyph_advance:
{
Render_Piece_Glyph_Advance *glyph =
ExtractStruct(Render_Piece_Glyph_Advance);
Render_Font *font = get_font_info(&target->font_set, glyph->font_id)->font;
if (font)
private_draw_glyph_mono(target, font, glyph->character,
glyph->pos.x, glyph->pos.y,
glyph->advance, glyph->color);
}break;
case piece_type_change_clip:
{
Render_Piece_Change_Clip *clip =
ExtractStruct(Render_Piece_Change_Clip);
draw_set_clip(target, clip->box);
}break;
}
}
}
#undef ExtractStruct
internal void*
part_alloc(i32 size, void *context){
Partition *part = (Partition*)context;
void *result = push_block(part, size);
return(result);
}
internal void
part_free(void *ptr, void *context){
}
#define STBTT_malloc part_alloc
#define STBTT_free part_free
#define STB_TRUETYPE_IMPLEMENTATION
#include "stb_truetype.h"
internal i32
stb_font_load(Partition *part,
Render_Font *font_out,
char *filename_untranslated,
i32 pt_size,
i32 tab_width,
i32 oversample,
b32 store_texture){
char space_[1024];
String filename = make_fixed_width_string(space_);
b32 translate_success = sysshared_to_binary_path(&filename, filename_untranslated);
if (!translate_success) return 0;
i32 result = 1;
stbtt_packedchar chardata[256];
File_Data file = sysshared_load_file(filename.str);
if (!file.data){
result = 0;
}
else{
stbtt_fontinfo font;
if (!stbtt_InitFont(&font, (u8*)file.data, 0)){
result = 0;
}
else{
memset(font_out, 0, sizeof(*font_out));
i32 ascent, descent, line_gap;
stbtt_GetFontVMetrics(&font, &ascent, &descent, &line_gap);
f32 scale = stbtt_ScaleForPixelHeight(&font, (f32)pt_size);
f32 scaled_ascent = scale*ascent;
f32 scaled_descent = scale*descent;
f32 scaled_line_gap = scale*line_gap;
font_out->height = (i32)(scaled_ascent - scaled_descent + scaled_line_gap);
font_out->ascent = (i32)(scaled_ascent);
font_out->descent = (i32)(scaled_descent);
font_out->line_skip = (i32)(scaled_line_gap);
if (store_texture){
Temp_Memory temp = begin_temp_memory(part);
i32 tex_width = pt_size*16*oversample;
i32 tex_height = pt_size*16*oversample;
void *block = sysshared_push_block(part, tex_width * tex_height);
font_out->tex_width = tex_width;
font_out->tex_height = tex_height;
/////////////////////////////////////////////////////////////////
stbtt_pack_context spc;
if (stbtt_PackBegin(&spc, (u8*)block, tex_width, tex_height,
tex_width, 1, part)){
stbtt_PackSetOversampling(&spc, oversample, oversample);
if (!stbtt_PackFontRange(&spc, (u8*)file.data, 0,
STBTT_POINT_SIZE((f32)pt_size),
0, 128, chardata)){
result = 0;
}
stbtt_PackEnd(&spc);
}
else{
result = 0;
}
/////////////////////////////////////////////////////////////////
if (result){
GLuint font_tex;
glGenTextures(1, &font_tex);
glBindTexture(GL_TEXTURE_2D, font_tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, tex_width, tex_height, 0, GL_ALPHA, GL_UNSIGNED_BYTE, block);
font_out->tex = font_tex;
glBindTexture(GL_TEXTURE_2D, 0);
f32 *advance_data = font_out->advance_data;
Glyph_Data *glyphs = font_out->glyphs;
for (u8 code_point = 0; code_point < 128; ++code_point){
advance_data[code_point] = (f32)(CEIL32(chardata[code_point].xadvance));
glyphs[code_point].x0 = chardata[code_point].x0;
glyphs[code_point].y0 = chardata[code_point].y0;
glyphs[code_point].x1 = chardata[code_point].x1;
glyphs[code_point].y1 = chardata[code_point].y1;
glyphs[code_point].xoff = chardata[code_point].xoff;
glyphs[code_point].yoff = chardata[code_point].yoff + font_out->ascent;
glyphs[code_point].xoff2 = chardata[code_point].xoff2;
glyphs[code_point].yoff2 = chardata[code_point].yoff2 + font_out->ascent;
}
glyphs['\r'] = glyphs[' '];
advance_data['\r'] = advance_data[' '];
glyphs['\n'] = glyphs[' '];
advance_data['\n'] = advance_data[' '];
glyphs['\t'] = glyphs[' '];
advance_data['\t'] = advance_data[' ']*tab_width;
i32 max_advance = 0;
for (u8 code_point = 0; code_point < 128; ++code_point){
if (stbtt_FindGlyphIndex(&font, code_point) != 0){
font_out->glyphs[code_point].exists = 1;
i32 advance = CEIL32(advance_data[code_point]);
if (max_advance < advance){
max_advance = advance;
}
}
}
font_out->advance = max_advance - 1;
}
end_temp_memory(temp);
}
}
system_free_memory(file.data);
}
return(result);
}
// NOTE(allen): Thanks to insofaras.
// This is copy-pasted from some work he
// did to get free type working on Linux.
#undef internal
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_LCD_FILTER_H
#define internal static
internal u32
next_pow_of_2(u32 v){
--v;
v |= v >> 1;
v |= v >> 2;
v |= v >> 4;
v |= v >> 8;
v |= v >> 16;
return ++v;
}
#define NUM_GLYPHS 128
#define ENABLE_LCD_FILTER 0
internal b32
font_load_freetype(Partition *part,
Render_Font *rf,
char *filename,
i32 pt_size,
i32 tab_width,
b32 use_hinting){
memset(rf, 0, sizeof(*rf));
//TODO(inso): put stuff in linuxvars / init in main
FT_Library ft;
FT_Face face;
b32 use_lcd_filter = 0;
FT_Init_FreeType(&ft);
//NOTE(inso): i'm not sure the LCD filter looks better, and it doesn't work perfectly with the coloring stuff
// it will probably need shaders to work properly
#if ENABLE_LCD_FILTER
if(FT_Library_SetLcdFilter(ft, FT_LCD_FILTER_DEFAULT) == 0){
puts("LCD Filter on");
use_lcd_filter = 1;
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
}
#endif
FT_New_Face(ft, filename, 0, &face);
// set size & metrics
FT_Size_RequestRec_ size = {};
size.type = FT_SIZE_REQUEST_TYPE_NOMINAL;
size.height = pt_size << 6;
FT_Request_Size(face, &size);
rf->loaded = 1;
rf->ascent = CEIL32 (face->size->metrics.ascender / 64.0f);
rf->descent = FLOOR32 (face->size->metrics.descender / 64.0f);
rf->advance = CEIL32 (face->size->metrics.max_advance / 64.0f);
rf->height = CEIL32 (face->size->metrics.height / 64.0f);
rf->line_skip = rf->height - (rf->ascent - rf->descent);
rf->height -= rf->line_skip;
rf->line_skip = 0;
i32 max_glyph_w = face->size->metrics.x_ppem;
i32 max_glyph_h = rf->height;
i32 tex_width = 64;
i32 tex_height = 0;
// estimate upper bound on texture width
do {
tex_width *= 2;
float glyphs_per_row = ceilf(tex_width / (float) max_glyph_w);
float rows = ceilf(NUM_GLYPHS / glyphs_per_row);
tex_height = CEIL32(rows * (max_glyph_h + 2));
} while(tex_height > tex_width);
tex_height = next_pow_of_2(tex_height);
i32 pen_x = 0;
i32 pen_y = 0;
u32* pixels = push_array(part, u32, tex_width * tex_height);
memset(pixels, 0, tex_width * tex_height * sizeof(u32));
u32 ft_extra_flags = 0;
if (use_lcd_filter){
ft_extra_flags = FT_LOAD_TARGET_LCD;
}
else{
if (use_hinting){
// NOTE(inso): FT_LOAD_TARGET_LIGHT does hinting only vertically, which looks nicer imo
// maybe it could be exposed as an option for hinting, instead of just on/off.
ft_extra_flags = FT_LOAD_FORCE_AUTOHINT | FT_LOAD_TARGET_LIGHT;
}
else{
ft_extra_flags = (FT_LOAD_NO_AUTOHINT | FT_LOAD_NO_HINTING);
}
}
for(i32 i = 0; i < NUM_GLYPHS; ++i){
if(FT_Load_Char(face, i, FT_LOAD_RENDER | ft_extra_flags) != 0) continue;
i32 w = face->glyph->bitmap.width;
i32 h = face->glyph->bitmap.rows;
// lcd filter produces RGB bitmaps, need to account for the extra components
if(use_lcd_filter){
w /= 3;
}
// move to next line if necessary
if(pen_x + w >= tex_width){
pen_x = 0;
pen_y += (max_glyph_h + 2);
}
// set all this stuff the renderer needs
Glyph_Data* c = rf->glyphs + i;
c->x0 = (f32)(pen_x);
c->y0 = (f32)(pen_y);
c->x1 = (f32)(pen_x + w);
c->y1 = (f32)(pen_y + h + 1);
c->xoff = (f32)(face->glyph->bitmap_left);
c->yoff = (f32)(rf->ascent - face->glyph->bitmap_top);
c->xoff2 = w + c->xoff;
c->yoff2 = h + c->yoff + 1;
// TODO(allen): maybe advance data should be integers for a while...
// I require the actual values to be integers anyway... hmm...
rf->advance_data[i] = (f32)CEIL32(face->glyph->advance.x / 64.0f);
rf->glyphs[i].exists = 1;
i32 pitch = face->glyph->bitmap.pitch;
// write to texture atlas
for(i32 j = 0; j < h; ++j){
for(i32 i = 0; i < w; ++i){
i32 x = pen_x + i;
i32 y = pen_y + j;
if(use_lcd_filter){
#if 1
u8 a = face->glyph->bitmap.buffer[j * pitch + i * 3 + 1];
u8 r = face->glyph->bitmap.buffer[j * pitch + i * 3 + 0];
u8 b = face->glyph->bitmap.buffer[j * pitch + i * 3 + 2];
pixels[y * tex_width + x] = (a << 24) | (b << 16) | (a << 8) | r;
#else
u8 r = face->glyph->bitmap.buffer[j * pitch + i * 3];
u8 g = face->glyph->bitmap.buffer[j * pitch + i * 3 + 1];
u8 b = face->glyph->bitmap.buffer[j * pitch + i * 3 + 2];
u8 a = (u8)ROUND32((r + g + b) / 3.0f);
pixels[y * tex_width + x] = (a << 24) | (r << 16) | (g << 8) | b;
#endif
} else {
pixels[y * tex_width + x] = face->glyph->bitmap.buffer[j * pitch + i] * 0x1010101;
}
}
}
pen_x = CEIL32(c->x1 + 1);
}
Glyph_Data space_glyph = rf->glyphs[' '];
f32 space_width = rf->advance_data[' '];
rf->glyphs['\r'] = space_glyph;
rf->advance_data['\r'] = space_width;
rf->glyphs['\n'] = space_glyph;
rf->advance_data['\n'] = space_width;
rf->glyphs['\t'] = space_glyph;
rf->advance_data['\t'] = space_width*tab_width;
FT_Done_FreeType(ft);
tex_height = next_pow_of_2(pen_y + max_glyph_h + 2);
rf->tex_width = tex_width;
rf->tex_height = tex_height;
// upload texture
glGenTextures(1, &rf->tex);
glBindTexture(GL_TEXTURE_2D, rf->tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
if(use_lcd_filter){
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex_width, tex_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
} else {
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, tex_width, tex_height, 0, GL_ALPHA, GL_UNSIGNED_INT, pixels);
}
glBindTexture(GL_TEXTURE_2D, 0);
return 1;
}
internal
Release_Font_Sig(draw_release_font){
glDeleteTextures(1, &font->tex);
font->tex = 0;
}
// BOTTOM // BOTTOM

5
system_shared.h
View File

@ -11,11 +11,12 @@
// NOTE(allen): This serves as a list of functions to implement // NOTE(allen): This serves as a list of functions to implement
// in addition to those in 4ed_system.h These are not exposed to // in addition to those in 4ed_system.h These are not exposed to
// the application code, but system_shared.cpp and 4ed_rendering.cpp // the application code, but system_shared.cpp
// rely on the functions listed here. // rely on the functions listed here.
struct File_Data{ struct File_Data{
Data data; char *data;
u32 size;
b32 got_file; b32 got_file;
}; };
inline File_Data inline File_Data

166
win32_4ed.cpp
View File

@ -21,13 +21,17 @@
#include "4ed_meta.h" #include "4ed_meta.h"
//
// Instead of including 4coder_custom.h
//
#include "4ed_math.h" #include "4ed_math.h"
#include "4ed_system.h" #include "4ed_system.h"
#include "4ed_rendering.h" #include "4ed_rendering.h"
#include "4ed.h" #include "4ed.h"
#include <windows.h> #include <Windows.h>
#include <GL/gl.h> #include <GL/gl.h>
#include <GL/glext.h> #include <GL/glext.h>
@ -771,159 +775,6 @@ Sys_File_Can_Be_Made_Sig(system_file_can_be_made){
return(1); return(1);
} }
struct File_Loading{
Plat_Handle handle;
i32 size;
b32 exists;
};
internal File_Loading
system_file_load_begin(char *filename){
File_Loading loading = {0};
HANDLE file = 0;
String fname_str = make_string_slowly(filename);
if (fname_str.size < 1024){
char fixed_space[1024];
String fixed_str = make_fixed_width_string(fixed_space);
copy_ss(&fixed_str, fname_str);
terminate_with_null(&fixed_str);
replace_char(&fixed_str, '/', '\\');
file = CreateFile(fixed_str.str, GENERIC_READ, 0, 0,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
if (file && file != INVALID_HANDLE_VALUE){
DWORD lo, hi;
lo = GetFileSize(file, &hi);
if (hi == 0){
loading.handle = Win32Handle(file);
loading.size = lo;
loading.exists = 1;
}
else{
CloseHandle(file);
}
}
}
return(loading);
}
internal b32
system_file_load_end(File_Loading loading, char *buffer){
b32 success = 0;
HANDLE file = Win32Handle(loading.handle);
DWORD read_size = 0;
BOOL read_result = 0;
if (loading.exists && file != INVALID_HANDLE_VALUE){
read_result =
ReadFile(file,
buffer, loading.size,
&read_size, 0);
if (read_result && read_size == (DWORD)loading.size){
success = 1;
}
CloseHandle(file);
}
return(success);
}
internal b32
system_file_save(char *filename, char *buffer, i32 size){
b32 success = false;
HANDLE file =
CreateFile((char*)filename, GENERIC_WRITE, 0, 0,
CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
if (!file || file == INVALID_HANDLE_VALUE){
success = false;
}
else{
BOOL write_result = 0;
DWORD bytes_written = 0;
if (buffer){
write_result = WriteFile(file, buffer, size, &bytes_written, 0);
}
CloseHandle(file);
if (write_result && bytes_written == (u32)size){
success = true;
}
}
return(success);
}
#if 0
internal
Sys_File_Time_Stamp_Sig(system_file_time_stamp){
u64 result = 0;
FILETIME last_write;
WIN32_FILE_ATTRIBUTE_DATA data;
if (GetFileAttributesEx((char*)filename, GetFileExInfoStandard, &data)){
last_write = data.ftLastWriteTime;
result = ((u64)last_write.dwHighDateTime << 32) | (last_write.dwLowDateTime);
}
return(result);
}
internal
Sys_Now_Time_Stamp_Sig(system_now_time_stamp){
u64 result = 0;
FILETIME filetime;
GetSystemTimeAsFileTime(&filetime);
result = ((u64)filetime.dwHighDateTime << 32) | (filetime.dwLowDateTime);
return(result);
}
internal
Sys_File_Unique_Hash_Sig(system_file_unique_hash){
Unique_Hash hash = {0};
BY_HANDLE_FILE_INFORMATION info;
HANDLE handle;
char space[1024];
String str;
if (filename.size < sizeof(space)){
str = make_fixed_width_string(space);
copy(&str, filename);
terminate_with_null(&str);
handle = CreateFile(str.str, GENERIC_READ, 0, 0,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
*success = 0;
if (handle && handle != INVALID_HANDLE_VALUE){
if (GetFileInformationByHandle(handle, &info)){
hash.d[2] = info.dwVolumeSerialNumber;
hash.d[1] = info.nFileIndexHigh;
hash.d[0] = info.nFileIndexLow;
*success = 1;
}
CloseHandle(handle);
}
}
return(hash);
}
#endif
internal internal
Sys_Set_File_List_Sig(system_set_file_list){ Sys_Set_File_List_Sig(system_set_file_list){
if (directory.size > 0){ if (directory.size > 0){
@ -1524,11 +1375,8 @@ Sys_CLI_End_Update_Sig(system_cli_end_update){
} }
#include "system_shared.cpp" #include "system_shared.cpp"
#include "4ed_rendering.cpp"
#if USE_WIN32_FONTS #if USE_FT_FONTS
# include "win32_font.cpp"
#elif USE_FT_FONTS
# include "win32_ft_font.cpp" # include "win32_ft_font.cpp"
#endif #endif
@ -2197,7 +2045,7 @@ WinMain(HINSTANCE hInstance,
} }
win32vars.target.max = Mbytes(1); win32vars.target.max = Mbytes(1);
win32vars.target.push_buffer = (byte*)system_get_memory(win32vars.target.max); win32vars.target.push_buffer = (char*)system_get_memory(win32vars.target.max);
// //