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[QP] Add RGB565 surface. Docs clarification, cleanup, tabsification, and reordering. (#18396)

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Nick Brassel 2022-09-19 07:30:08 +10:00 • committed by GitHub
parent e9bdc4eeb1
commit 1849897444
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GPG key ID: 4AEE18F83AFDEB23
10 changed files with 782 additions and 294 deletions
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49
quantum/painter/qp_draw_text.c
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@ -36,10 +36,10 @@ typedef struct qff_font_handle_t {
static qff_font_handle_t font_descriptors[QUANTUM_PAINTER_NUM_FONTS] = {0};
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Quantum Painter External API: qp_load_font_mem
// Helper: load font from stream
painter_font_handle_t qp_load_font_mem(const void *buffer) {
qp_dprintf("qp_load_font_mem: entry\n");
static painter_font_handle_t qp_load_font_internal(bool (*stream_factory)(qff_font_handle_t *font, void *arg), void *arg) {
qp_dprintf("qp_load_font: entry\n");
qff_font_handle_t *font = NULL;
// Find a free slot
@ -52,20 +52,18 @@ painter_font_handle_t qp_load_font_mem(const void *buffer) {
// Drop out if not found
if (!font) {
qp_dprintf("qp_load_font_mem: fail (no free slot)\n");
qp_dprintf("qp_load_font: fail (no free slot)\n");
return NULL;
}
// Assume we can read the graphics descriptor
font->mem_stream = qp_make_memory_stream((void *)buffer, sizeof(qff_font_descriptor_v1_t));
// Update the length of the stream to match, and rewind to the start
font->mem_stream.length = qff_get_total_size(&font->stream);
font->mem_stream.position = 0;
if (!stream_factory(font, arg)) {
qp_dprintf("qp_load_font: fail (could not create stream)\n");
return NULL;
}
// Now that we know the length, validate the input data
if (!qff_validate_stream(&font->stream)) {
qp_dprintf("qp_load_font_mem: fail (failed validation)\n");
qp_dprintf("qp_load_font: fail (failed validation)\n");
return NULL;
}
@ -76,12 +74,12 @@ painter_font_handle_t qp_load_font_mem(const void *buffer) {
void *ram_buffer = malloc(font->mem_stream.length);
if (ram_buffer == NULL) {
qp_dprintf("qp_load_font_mem: could not allocate enough RAM for font, falling back to original\n");
qp_dprintf("qp_load_font: could not allocate enough RAM for font, falling back to original\n");
} else {
do {
// Copy the data into RAM
if (qp_stream_read(ram_buffer, 1, font->mem_stream.length, &font->mem_stream) != font->mem_stream.length) {
qp_dprintf("qp_load_font_mem: could not copy from flash to RAM, falling back to original\n");
qp_dprintf("qp_load_font: could not copy from flash to RAM, falling back to original\n");
break;
}
@ -102,17 +100,37 @@ painter_font_handle_t qp_load_font_mem(const void *buffer) {
qff_read_font_descriptor(&font->stream, &font->base.line_height, &font->has_ascii_table, &font->num_unicode_glyphs, &font->bpp, &font->has_palette, &font->compression_scheme, NULL);
if (!qp_internal_bpp_capable(font->bpp)) {
qp_dprintf("qp_load_font_mem: fail (image bpp too high (%d), check QUANTUM_PAINTER_SUPPORTS_256_PALETTE)\n", (int)font->bpp);
qp_dprintf("qp_load_font: fail (image bpp too high (%d), check QUANTUM_PAINTER_SUPPORTS_256_PALETTE)\n", (int)font->bpp);
qp_close_font((painter_font_handle_t)font);
return NULL;
}
// Validation success, we can return the handle
font->validate_ok = true;
qp_dprintf("qp_load_font_mem: ok\n");
qp_dprintf("qp_load_font: ok\n");
return (painter_font_handle_t)font;
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Quantum Painter External API: qp_load_font_mem
static inline bool font_mem_stream_factory(qff_font_handle_t *font, void *arg) {
void *buffer = arg;
// Assume we can read the graphics descriptor
font->mem_stream = qp_make_memory_stream(buffer, sizeof(qff_font_descriptor_v1_t));
// Update the length of the stream to match, and rewind to the start
font->mem_stream.length = qff_get_total_size(&font->stream);
font->mem_stream.position = 0;
return true;
}
painter_font_handle_t qp_load_font_mem(const void *buffer) {
return qp_load_font_internal(font_mem_stream_factory, (void *)buffer);
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Quantum Painter External API: qp_close_font
@ -133,6 +151,7 @@ bool qp_close_font(painter_font_handle_t font) {
#endif // QUANTUM_PAINTER_LOAD_FONTS_TO_RAM
// Free up this font for use elsewhere.
qp_stream_close(&qff_font->stream);
qff_font->validate_ok = false;
return true;
}