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[renderer] Remove rglyph_t struct

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It didn't really add anything of value as the glyph bitmap rects and the
bearings were never used together, and the rest of the fields were
entirely redundant. A small step towards using a component system for
text.
This commit is contained in:
Bill Currie 2022-10-20 15:50:53 +09:00
parent 06ccc3023b
commit 6189142c60
5 changed files with 33 additions and 39 deletions
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10
include/r_font.h
View file

@ -39,13 +39,6 @@
#include "r_scrap.h"
typedef struct rglyph_s {
struct rfont_s *font;
vrect_t *rect;
vec2i_t bearing;
int advance;
int charcode;
} rglyph_t;
typedef struct rfont_s {
void *font_resource;
@ -53,7 +46,8 @@ typedef struct rfont_s {
rscrap_t scrap;
byte *scrap_bitmap;
FT_Long num_glyphs;
rglyph_t *glyphs;
vrect_t *glyph_rects;
vec2i_t *glyph_bearings;
} rfont_t;
void R_FontInit (void);

2
include/r_text.h
View file

@ -47,7 +47,7 @@ typedef struct r_hb_featureset_s DARRAY_TYPE (hb_feature_t) r_hb_featureset_t;
struct rfont_s;
struct rglyph_s;
typedef void rtext_render_t (struct rglyph_s *glyph, int x, int y, void *data);
typedef void rtext_render_t (uint32_t glyphid, int x, int y, void *data);
typedef struct rshaper_s {
struct rfont_s *rfont;

24
libs/video/renderer/r_font.c
View file

@ -43,10 +43,10 @@
static FT_Library ft;
static void
copy_glyph (rglyph_t *glyph, FT_GlyphSlot src_glyph)
copy_glyph (vrect_t *rect, FT_GlyphSlot src_glyph, rfont_t *font)
{
int dst_pitch = glyph->font->scrap.width;
byte *dst = glyph->font->scrap_bitmap + glyph->rect->x + glyph->rect->y * dst_pitch;
int dst_pitch = font->scrap.width;
byte *dst = font->scrap_bitmap + rect->x + rect->y * dst_pitch;
int src_pitch = src_glyph->bitmap.pitch;
byte *src = src_glyph->bitmap.buffer;
@ -74,7 +74,8 @@ R_FontFree (rfont_t *font)
if (font->scrap.rects || font->scrap.free_rects) {
R_ScrapDelete (&font->scrap);
}
free (font->glyphs);
free (font->glyph_rects);
free (font->glyph_bearings);
free (font->scrap_bitmap);
free (font->font_resource);
free (font);
@ -108,22 +109,21 @@ R_FontLoad (QFile *font_file, int size)
R_ScrapInit (&font->scrap, pixels, pixels);
font->scrap_bitmap = calloc (1, pixels * pixels);
font->num_glyphs = font->face->num_glyphs;
font->glyphs = malloc (font->num_glyphs * sizeof (rglyph_t));
font->glyph_rects = malloc (font->num_glyphs * sizeof (vrect_t));
font->glyph_bearings = malloc (font->num_glyphs * sizeof (vec2i_t));
for (FT_Long gind = 0; gind < font->face->num_glyphs; gind++) {
rglyph_t *glyph = &font->glyphs[gind];
vrect_t *rect = &font->glyph_rects[gind];
vec2i_t *bearing = &font->glyph_bearings[gind];
FT_Load_Glyph (font->face, gind, FT_LOAD_DEFAULT);
__auto_type slot = font->face->glyph;
FT_Render_Glyph (slot, FT_RENDER_MODE_NORMAL);
int width = slot->bitmap.width;
int height = slot->bitmap.rows;
glyph->font = font;
glyph->rect = R_ScrapAlloc (&font->scrap, width, height);
glyph->bearing = (vec2i_t) { slot->bitmap_left, slot->bitmap_top };
glyph->advance = slot->advance.x;
glyph->charcode = gind;
*rect = *R_ScrapAlloc (&font->scrap, width, height);
*bearing = (vec2i_t) { slot->bitmap_left, slot->bitmap_top };
copy_glyph (glyph, slot);
copy_glyph (rect, slot, font);
}
return font;

8
libs/video/renderer/r_text.c
View file

@ -97,16 +97,16 @@ RText_RenderText (rshaper_t *shaper, rtext_t *text, int x, int y,
rfont_t *font = shaper->rfont;
for (unsigned i = 0; i < count; i++) {
rglyph_t *glyph = &font->glyphs[glyphInfo[i].codepoint];
vec2i_t bearing = font->glyph_bearings[glyphInfo[i].codepoint];
int xp = x + glyphPos[i].x_offset / 64;
int yp = y + glyphPos[i].y_offset / 64;
int xa = glyphPos[i].x_advance / 64;
int ya = glyphPos[i].y_advance / 64;
xp += glyph->bearing[0];
yp -= glyph->bearing[1];
render (glyph, xp, yp, data);
xp += bearing[0];
yp -= bearing[1];
render (glyphInfo[i].codepoint, xp, yp, data);
x += xa;
y += ya;
}

28
libs/video/renderer/vulkan/vulkan_draw.c
View file

@ -1209,30 +1209,30 @@ Vulkan_Draw_AddFont (rfont_t *rfont, vulkan_ctx_t *ctx)
qfv_packet_t *packet = QFV_PacketAcquire (ctx->staging);
glyphvert_t *verts = QFV_PacketExtend (packet, glyph_data->buffer.size);
for (FT_Long i = 0; i < rfont->num_glyphs; i++) {
rglyph_t *glyph = &rfont->glyphs[i];
float x = 0;//glyph->bearing[0];
float y = 0;//-glyph->bearing[1]; // glyph +Y goes up
float w = glyph->rect->width;
float h = glyph->rect->height;
float u = glyph->rect->x;
float v = glyph->rect->y;
// assumes the glyph image is square
vrect_t *rect = &rfont->glyph_rects[i];
float x = 0;
float y = 0;
float w = rect->width;
float h = rect->height;
float u = rect->x;
float v = rect->y;
float s = 1.0 / rfont->scrap.width;
float t = 1.0 / rfont->scrap.height;
verts[i * 4 + 0] = (glyphvert_t) {
.offset = { x + 0, y + 0 },
.uv = {(u + 0.25) * s, (v + 0.25) * s },
.uv = {(u + 0.25) * s, (v + 0.25) * t },
};
verts[i * 4 + 1] = (glyphvert_t) {
.offset = { x + 0, y + h },
.uv = {(u + 0.25) * s, (v + h - 0.25) * s },
.uv = {(u + 0.25) * s, (v + h - 0.25) * t },
};
verts[i * 4 + 2] = (glyphvert_t) {
.offset = { x + w, y + 0 },
.uv = {(u + w - 0.25) * s, (v + 0.25) * s },
.uv = {(u + w - 0.25) * s, (v + 0.25) * t },
};
verts[i * 4 + 3] = (glyphvert_t) {
.offset = { x + w, y + h },
.uv = {(u + w - 0.25) * s, (v + h - 0.25) * s },
.uv = {(u + w - 0.25) * s, (v + h - 0.25) * t },
};
}
QFV_PacketCopyBuffer (packet, glyph_data->buffer.buffer,
@ -1280,7 +1280,7 @@ typedef struct {
} rgctx_t;
static void
vulkan_render_glyph (rglyph_t *glyph, int x, int y, void *_rgctx)
vulkan_render_glyph (uint32_t glyphid, int x, int y, void *_rgctx)
{
rgctx_t *rgctx = _rgctx;
glyphqueue_t *queue = &rgctx->dframe->glyph_insts;;
@ -1291,7 +1291,7 @@ vulkan_render_glyph (rglyph_t *glyph, int x, int y, void *_rgctx)
rgctx->batch->count++;
glyphinst_t *inst = &queue->glyphs[queue->count++];
inst->index = glyph->charcode;
inst->index = glyphid;
QuatCopy (rgctx->color, inst->color);
inst->position[0] = x;
inst->position[1] = y;