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Revert storing Font glyphs in manually-allocated memory (#4516)

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This partially reverts commit 62459a8ae1.
This commit is contained in:
Oxan van Leeuwen 2023-03-09 01:14:34 +01:00 committed by Jesse Hills
parent a4f21db272
commit 7c91b4474a
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GPG key ID: BEAAE804EFD8E83A
2 changed files with 8 additions and 17 deletions
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19
esphome/components/display/display_buffer.cpp
View file

@ -256,7 +256,7 @@ void DisplayBuffer::print(int x, int y, Font *font, Color color, TextAlign align
if (glyph_n < 0) {
// Unknown char, skip
ESP_LOGW(TAG, "Encountered character without representation in font: '%c'", text[i]);
if (font->get_glyphs_size() > 0) {
if (!font->get_glyphs().empty()) {
uint8_t glyph_width = font->get_glyphs()[0].glyph_data_->width;
for (int glyph_x = 0; glyph_x < glyph_width; glyph_x++) {
for (int glyph_y = 0; glyph_y < height; glyph_y++)
@ -557,7 +557,7 @@ void Glyph::scan_area(int *x1, int *y1, int *width, int *height) const {
}
int Font::match_next_glyph(const char *str, int *match_length) {
int lo = 0;
int hi = this->glyphs_size_ - 1;
int hi = this->glyphs_.size() - 1;
while (lo != hi) {
int mid = (lo + hi + 1) / 2;
if (this->glyphs_[mid].compare_to(str)) {
@ -583,7 +583,7 @@ void Font::measure(const char *str, int *width, int *x_offset, int *baseline, in
int glyph_n = this->match_next_glyph(str + i, &match_length);
if (glyph_n < 0) {
// Unknown char, skip
if (this->glyphs_size_ > 0)
if (!this->get_glyphs().empty())
x += this->get_glyphs()[0].glyph_data_->width;
i++;
continue;
@ -604,16 +604,9 @@ void Font::measure(const char *str, int *width, int *x_offset, int *baseline, in
*width = x - min_x;
}
Font::Font(const GlyphData *data, int data_nr, int baseline, int height) : baseline_(baseline), height_(height) {
ExternalRAMAllocator<Glyph> allocator(ExternalRAMAllocator<Glyph>::ALLOW_FAILURE);
this->glyphs_ = allocator.allocate(data_nr);
if (this->glyphs_ == nullptr) {
ESP_LOGE(TAG, "Could not allocate buffer for Glyphs!");
return;
}
for (int i = 0; i < data_nr; ++i) {
this->glyphs_[i] = Glyph(data + i);
}
this->glyphs_size_ = data_nr;
glyphs_.reserve(data_nr);
for (int i = 0; i < data_nr; ++i)
glyphs_.emplace_back(&data[i]);
}
bool Image::get_pixel(int x, int y) const {

6
esphome/components/display/display_buffer.h
View file

@ -526,12 +526,10 @@ class Font {
inline int get_baseline() { return this->baseline_; }
inline int get_height() { return this->height_; }
Glyph *&get_glyphs() { return this->glyphs_; }
const u_int16_t &get_glyphs_size() const { return this->glyphs_size_; }
const std::vector<Glyph, ExternalRAMAllocator<Glyph>> &get_glyphs() const { return glyphs_; }
protected:
Glyph *glyphs_{nullptr};
u_int16_t glyphs_size_;
std::vector<Glyph, ExternalRAMAllocator<Glyph>> glyphs_;
int baseline_;
int height_;
};