diff options
Diffstat (limited to 'quantum')
26 files changed, 3678 insertions, 33 deletions
diff --git a/quantum/main.c b/quantum/main.c index faba668056..2d5911b708 100644 --- a/quantum/main.c +++ b/quantum/main.c @@ -43,10 +43,6 @@ void protocol_task(void) { protocol_post_task(); } -#ifdef DEFERRED_EXEC_ENABLE -void deferred_exec_task(void); -#endif // DEFERRED_EXEC_ENABLE - /** \brief Main * * FIXME: Needs doc @@ -63,8 +59,15 @@ int main(void) { while (true) { protocol_task(); +#ifdef QUANTUM_PAINTER_ENABLE + // Run Quantum Painter animations + void qp_internal_animation_tick(void); + qp_internal_animation_tick(); +#endif + #ifdef DEFERRED_EXEC_ENABLE // Run deferred executions + void deferred_exec_task(void); deferred_exec_task(); #endif // DEFERRED_EXEC_ENABLE diff --git a/quantum/painter/qff.c b/quantum/painter/qff.c new file mode 100644 index 0000000000..cd6af788f9 --- /dev/null +++ b/quantum/painter/qff.c @@ -0,0 +1,137 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +// Quantum Font File "QFF" File Format. +// See https://docs.qmk.fm/#/quantum_painter_qff for more information. + +#include "qff.h" +#include "qp_draw.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// QFF API + +bool qff_read_font_descriptor(qp_stream_t *stream, uint8_t *line_height, bool *has_ascii_table, uint16_t *num_unicode_glyphs, uint8_t *bpp, bool *has_palette, painter_compression_t *compression_scheme, uint32_t *total_bytes) { + // Seek to the start + qp_stream_setpos(stream, 0); + + // Read and validate the font descriptor + qff_font_descriptor_v1_t font_descriptor; + if (qp_stream_read(&font_descriptor, sizeof(qff_font_descriptor_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read font_descriptor, expected length was not %d\n", (int)sizeof(qff_font_descriptor_v1_t)); + return false; + } + + // Make sure this block is valid + if (!qgf_validate_block_header(&font_descriptor.header, QFF_FONT_DESCRIPTOR_TYPEID, (sizeof(qff_font_descriptor_v1_t) - sizeof(qgf_block_header_v1_t)))) { + return false; + } + + // Make sure the magic and version are correct + if (font_descriptor.magic != QFF_MAGIC || font_descriptor.qff_version != 0x01) { + qp_dprintf("Failed to validate font_descriptor, expected magic 0x%06X was 0x%06X, expected version = 0x%02X was 0x%02X\n", (int)QFF_MAGIC, (int)font_descriptor.magic, (int)0x01, (int)font_descriptor.qff_version); + return false; + } + + // Make sure the file length is valid + if (font_descriptor.neg_total_file_size != ~font_descriptor.total_file_size) { + qp_dprintf("Failed to validate font_descriptor, expected negated length 0x%08X was 0x%08X\n", (int)(~font_descriptor.total_file_size), (int)font_descriptor.neg_total_file_size); + return false; + } + + // Copy out the required info + if (line_height) { + *line_height = font_descriptor.line_height; + } + if (has_ascii_table) { + *has_ascii_table = font_descriptor.has_ascii_table; + } + if (num_unicode_glyphs) { + *num_unicode_glyphs = font_descriptor.num_unicode_glyphs; + } + if (bpp || has_palette) { + if (!qgf_parse_format(font_descriptor.format, bpp, has_palette)) { + return false; + } + } + if (compression_scheme) { + *compression_scheme = font_descriptor.compression_scheme; + } + if (total_bytes) { + *total_bytes = font_descriptor.total_file_size; + } + + return true; +} + +static bool qff_validate_ascii_descriptor(qp_stream_t *stream) { + // Read the raw descriptor + qff_ascii_glyph_table_v1_t ascii_descriptor; + if (qp_stream_read(&ascii_descriptor, sizeof(qff_ascii_glyph_table_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read ascii_descriptor, expected length was not %d\n", (int)sizeof(qff_ascii_glyph_table_v1_t)); + return false; + } + + // Make sure this block is valid + if (!qgf_validate_block_header(&ascii_descriptor.header, QFF_ASCII_GLYPH_DESCRIPTOR_TYPEID, (sizeof(qff_ascii_glyph_table_v1_t) - sizeof(qgf_block_header_v1_t)))) { + return false; + } + + return true; +} + +static bool qff_validate_unicode_descriptor(qp_stream_t *stream, uint16_t num_unicode_glyphs) { + // Read the raw descriptor + qff_unicode_glyph_table_v1_t unicode_descriptor; + if (qp_stream_read(&unicode_descriptor, sizeof(qff_unicode_glyph_table_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read unicode_descriptor, expected length was not %d\n", (int)sizeof(qff_unicode_glyph_table_v1_t)); + return false; + } + + // Make sure this block is valid + if (!qgf_validate_block_header(&unicode_descriptor.header, QFF_UNICODE_GLYPH_DESCRIPTOR_TYPEID, num_unicode_glyphs * 6)) { + return false; + } + + // Skip the necessary amount of data to get to the next block + qp_stream_seek(stream, num_unicode_glyphs * sizeof(qff_unicode_glyph_v1_t), SEEK_CUR); + + return true; +} + +bool qff_validate_stream(qp_stream_t *stream) { + bool has_ascii_table; + uint16_t num_unicode_glyphs; + + if (!qff_read_font_descriptor(stream, NULL, &has_ascii_table, &num_unicode_glyphs, NULL, NULL, NULL, NULL)) { + return false; + } + + if (has_ascii_table) { + if (!qff_validate_ascii_descriptor(stream)) { + return false; + } + } + + if (num_unicode_glyphs > 0) { + if (!qff_validate_unicode_descriptor(stream, num_unicode_glyphs)) { + return false; + } + } + + return true; +} + +uint32_t qff_get_total_size(qp_stream_t *stream) { + // Get the original location + uint32_t oldpos = qp_stream_tell(stream); + + // Read the font descriptor, grabbing the size + uint32_t total_size; + if (!qff_read_font_descriptor(stream, NULL, NULL, NULL, NULL, NULL, NULL, &total_size)) { + return false; + } + + // Restore the original location + qp_stream_setpos(stream, oldpos); + return total_size; +} diff --git a/quantum/painter/qff.h b/quantum/painter/qff.h new file mode 100644 index 0000000000..6f1a1fd815 --- /dev/null +++ b/quantum/painter/qff.h @@ -0,0 +1,88 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +// Quantum Font File "QFF" File Format. +// See https://docs.qmk.fm/#/quantum_painter_qff for more information. + +#include <stdint.h> +#include <stdbool.h> + +#include "qp_stream.h" +#include "qp_internal.h" +#include "qgf.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// QFF structures + +///////////////////////////////////////// +// Font descriptor + +#define QFF_FONT_DESCRIPTOR_TYPEID 0x00 + +typedef struct __attribute__((packed)) qff_font_descriptor_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x00, .neg_type_id = (~0x00), .length = 20 } + uint32_t magic : 24; // constant, equal to 0x464651 ("QFF") + uint8_t qff_version; // constant, equal to 0x01 + uint32_t total_file_size; // total size of the entire file, starting at offset zero + uint32_t neg_total_file_size; // negated value of total_file_size, used for detecting parsing errors + uint8_t line_height; // glyph height in pixels + bool has_ascii_table; // whether the font has an ascii table of glyphs (0x20...0x7E) + uint16_t num_unicode_glyphs; // the number of glyphs in the unicode table -- no table specified if zero + qp_image_format_t format : 8; // Frame format, see qp.h. + uint8_t flags; // frame flags, see below. + uint8_t compression_scheme; // compression scheme, see below. + uint8_t transparency_index; // palette index used for transparent pixels (not yet implemented) +} qff_font_descriptor_v1_t; + +_Static_assert(sizeof(qff_font_descriptor_v1_t) == (sizeof(qgf_block_header_v1_t) + 20), "qff_font_descriptor_v1_t must be 25 bytes in v1 of QFF"); + +#define QFF_MAGIC 0x464651 + +///////////////////////////////////////// +// ASCII glyph table descriptor + +#define QFF_ASCII_GLYPH_DESCRIPTOR_TYPEID 0x01 + +#define QFF_GLYPH_WIDTH_BITS 6 +#define QFF_GLYPH_WIDTH_MASK ((1 << QFF_GLYPH_WIDTH_BITS) - 1) +#define QFF_GLYPH_OFFSET_BITS 18 +#define QFF_GLYPH_OFFSET_MASK (((1 << QFF_GLYPH_OFFSET_BITS) - 1) << QFF_GLYPH_WIDTH_BITS) + +typedef struct __attribute__((packed)) qff_ascii_glyph_v1_t { + uint32_t value : 24; // Uses QFF_GLYPH_*_(BITS|MASK) as bitfield ordering is compiler-defined +} qff_ascii_glyph_v1_t; + +_Static_assert(sizeof(qff_ascii_glyph_v1_t) == 3, "qff_ascii_glyph_v1_t must be 3 bytes in v1 of QFF"); + +typedef struct __attribute__((packed)) qff_ascii_glyph_table_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x01, .neg_type_id = (~0x01), .length = 285 } + qff_ascii_glyph_v1_t glyph[95]; // 95 glyphs, 0x20..0x7E +} qff_ascii_glyph_table_v1_t; + +_Static_assert(sizeof(qff_ascii_glyph_table_v1_t) == (sizeof(qgf_block_header_v1_t) + (95 * sizeof(qff_ascii_glyph_v1_t))), "qff_ascii_glyph_table_v1_t must be 290 bytes in v1 of QFF"); + +///////////////////////////////////////// +// Unicode glyph table descriptor + +#define QFF_UNICODE_GLYPH_DESCRIPTOR_TYPEID 0x02 + +typedef struct __attribute__((packed)) qff_unicode_glyph_v1_t { + uint32_t code_point : 24; + uint32_t value : 24; // Uses QFF_GLYPH_*_(BITS|MASK) as bitfield ordering is compiler-defined +} qff_unicode_glyph_v1_t; + +_Static_assert(sizeof(qff_unicode_glyph_v1_t) == 6, "qff_unicode_glyph_v1_t must be 6 bytes in v1 of QFF"); + +typedef struct __attribute__((packed)) qff_unicode_glyph_table_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x02, .neg_type_id = (~0x02), .length = (N * 6) } + qff_unicode_glyph_v1_t glyph[0]; // Extent of '0' signifies that this struct is immediately followed by the glyph data +} qff_unicode_glyph_table_v1_t; + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// QFF API + +bool qff_validate_stream(qp_stream_t *stream); +uint32_t qff_get_total_size(qp_stream_t *stream); +bool qff_read_font_descriptor(qp_stream_t *stream, uint8_t *line_height, bool *has_ascii_table, uint16_t *num_unicode_glyphs, uint8_t *bpp, bool *has_palette, painter_compression_t *compression_scheme, uint32_t *total_bytes); diff --git a/quantum/painter/qgf.c b/quantum/painter/qgf.c new file mode 100644 index 0000000000..834837105b --- /dev/null +++ b/quantum/painter/qgf.c @@ -0,0 +1,292 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +// Quantum Graphics File "QGF" File Format. +// See https://docs.qmk.fm/#/quantum_painter_qgf for more information. + +#include "qgf.h" +#include "qp_draw.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// QGF API + +bool qgf_validate_block_header(qgf_block_header_v1_t *desc, uint8_t expected_typeid, int32_t expected_length) { + if (desc->type_id != expected_typeid || desc->neg_type_id != ((~expected_typeid) & 0xFF)) { + qp_dprintf("Failed to validate header, expected typeid 0x%02X, was 0x%02X, expected negated typeid 0x%02X, was 0x%02X\n", (int)expected_typeid, (int)desc->type_id, (int)((~desc->type_id) & 0xFF), (int)desc->neg_type_id); + return false; + } + + if (expected_length >= 0 && desc->length != expected_length) { + qp_dprintf("Failed to validate header (typeid 0x%02X), expected length %d, was %d\n", (int)desc->type_id, (int)expected_length, (int)desc->length); + return false; + } + + return true; +} + +bool qgf_parse_format(qp_image_format_t format, uint8_t *bpp, bool *has_palette) { + // clang-format off + static const struct QP_PACKED { + uint8_t bpp; + bool has_palette; + } formats[] = { + [GRAYSCALE_1BPP] = {.bpp = 1, .has_palette = false}, + [GRAYSCALE_2BPP] = {.bpp = 2, .has_palette = false}, + [GRAYSCALE_4BPP] = {.bpp = 4, .has_palette = false}, + [GRAYSCALE_8BPP] = {.bpp = 8, .has_palette = false}, + [PALETTE_1BPP] = {.bpp = 1, .has_palette = true}, + [PALETTE_2BPP] = {.bpp = 2, .has_palette = true}, + [PALETTE_4BPP] = {.bpp = 4, .has_palette = true}, + [PALETTE_8BPP] = {.bpp = 8, .has_palette = true}, + }; + // clang-format on + + // Copy out the required info + if (format > PALETTE_8BPP) { + qp_dprintf("Failed to parse frame_descriptor, invalid format 0x%02X\n", (int)format); + return false; + } + + // Copy out the required info + if (bpp) { + *bpp = formats[format].bpp; + } + if (has_palette) { + *has_palette = formats[format].has_palette; + } + + return true; +} + +bool qgf_parse_frame_descriptor(qgf_frame_v1_t *frame_descriptor, uint8_t *bpp, bool *has_palette, bool *is_delta, painter_compression_t *compression_scheme, uint16_t *delay) { + // Decode the format + qgf_parse_format(frame_descriptor->format, bpp, has_palette); + + // Copy out the required info + if (is_delta) { + *is_delta = (frame_descriptor->flags & QGF_FRAME_FLAG_DELTA) == QGF_FRAME_FLAG_DELTA; + } + if (compression_scheme) { + *compression_scheme = frame_descriptor->compression_scheme; + } + if (delay) { + *delay = frame_descriptor->delay; + } + + return true; +} + +bool qgf_read_graphics_descriptor(qp_stream_t *stream, uint16_t *image_width, uint16_t *image_height, uint16_t *frame_count, uint32_t *total_bytes) { + // Seek to the start + qp_stream_setpos(stream, 0); + + // Read and validate the graphics descriptor + qgf_graphics_descriptor_v1_t graphics_descriptor; + if (qp_stream_read(&graphics_descriptor, sizeof(qgf_graphics_descriptor_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read graphics_descriptor, expected length was not %d\n", (int)sizeof(qgf_graphics_descriptor_v1_t)); + return false; + } + + // Make sure this block is valid + if (!qgf_validate_block_header(&graphics_descriptor.header, QGF_GRAPHICS_DESCRIPTOR_TYPEID, (sizeof(qgf_graphics_descriptor_v1_t) - sizeof(qgf_block_header_v1_t)))) { + return false; + } + + // Make sure the magic and version are correct + if (graphics_descriptor.magic != QGF_MAGIC || graphics_descriptor.qgf_version != 0x01) { + qp_dprintf("Failed to validate graphics_descriptor, expected magic 0x%06X was 0x%06X, expected version = 0x%02X was 0x%02X\n", (int)QGF_MAGIC, (int)graphics_descriptor.magic, (int)0x01, (int)graphics_descriptor.qgf_version); + return false; + } + + // Make sure the file length is valid + if (graphics_descriptor.neg_total_file_size != ~graphics_descriptor.total_file_size) { + qp_dprintf("Failed to validate graphics_descriptor, expected negated length 0x%08X was 0x%08X\n", (int)(~graphics_descriptor.total_file_size), (int)graphics_descriptor.neg_total_file_size); + return false; + } + + // Copy out the required info + if (image_width) { + *image_width = graphics_descriptor.image_width; + } + if (image_height) { + *image_height = graphics_descriptor.image_height; + } + if (frame_count) { + *frame_count = graphics_descriptor.frame_count; + } + if (total_bytes) { + *total_bytes = graphics_descriptor.total_file_size; + } + + return true; +} + +static bool qgf_read_frame_offset(qp_stream_t *stream, uint16_t frame_number, uint32_t *frame_offset) { + uint16_t frame_count; + if (!qgf_read_graphics_descriptor(stream, NULL, NULL, &frame_count, NULL)) { + return false; + } + + // Read the frame offsets descriptor + qgf_frame_offsets_v1_t frame_offsets; + if (qp_stream_read(&frame_offsets, sizeof(qgf_frame_offsets_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read frame_offsets, expected length was not %d\n", (int)sizeof(qgf_frame_offsets_v1_t)); + return false; + } + + // Make sure this block is valid + if (!qgf_validate_block_header(&frame_offsets.header, QGF_FRAME_OFFSET_DESCRIPTOR_TYPEID, (frame_count * sizeof(uint32_t)))) { + return false; + } + + if (frame_number >= frame_count) { + qp_dprintf("Invalid frame number, was %d but only %d frames in image\n", (int)frame_number, (int)frame_count); + return false; + } + + // Skip the necessary amount of data to get to the requested frame offset + qp_stream_seek(stream, frame_number * sizeof(uint32_t), SEEK_CUR); + + // Read the frame offset + uint32_t offset = 0; + if (qp_stream_read(&offset, sizeof(uint32_t), 1, stream) != 1) { + qp_dprintf("Failed to read frame offset, expected length was not %d\n", (int)sizeof(uint32_t)); + return false; + } + + // Copy out the required info + if (frame_offset) { + *frame_offset = offset; + } + + return true; +} + +void qgf_seek_to_frame_descriptor(qp_stream_t *stream, uint16_t frame_number) { + // Read the offset + uint32_t offset = 0; + qgf_read_frame_offset(stream, frame_number, &offset); + + // Move to the offset + qp_stream_setpos(stream, offset); +} + +bool qgf_validate_frame_descriptor(qp_stream_t *stream, uint16_t frame_number, uint8_t *bpp, bool *has_palette, bool *is_delta) { + // Seek to the correct location + qgf_seek_to_frame_descriptor(stream, frame_number); + + // Read the raw descriptor + qgf_frame_v1_t frame_descriptor; + if (qp_stream_read(&frame_descriptor, sizeof(qgf_frame_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read frame_descriptor, expected length was not %d\n", (int)sizeof(qgf_frame_v1_t)); + return false; + } + + // Make sure this block is valid + if (!qgf_validate_block_header(&frame_descriptor.header, QGF_FRAME_DESCRIPTOR_TYPEID, (sizeof(qgf_frame_v1_t) - sizeof(qgf_block_header_v1_t)))) { + return false; + } + + return qgf_parse_frame_descriptor(&frame_descriptor, bpp, has_palette, is_delta, NULL, NULL); +} + +bool qgf_validate_palette_descriptor(qp_stream_t *stream, uint16_t frame_number, uint8_t bpp) { + // Read the palette descriptor + qgf_palette_v1_t palette_descriptor; + if (qp_stream_read(&palette_descriptor, sizeof(qgf_palette_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read palette_descriptor, expected length was not %d\n", (int)sizeof(qgf_palette_v1_t)); + return false; + } + + // Make sure this block is valid + uint32_t expected_length = (1 << bpp) * 3 * sizeof(uint8_t); + if (!qgf_validate_block_header(&palette_descriptor.header, QGF_FRAME_PALETTE_DESCRIPTOR_TYPEID, expected_length)) { + return false; + } + + // Move forward in the stream to the next block + qp_stream_seek(stream, expected_length, SEEK_CUR); + return true; +} + +bool qgf_validate_delta_descriptor(qp_stream_t *stream, uint16_t frame_number) { + // Read the delta descriptor + qgf_delta_v1_t delta_descriptor; + if (qp_stream_read(&delta_descriptor, sizeof(qgf_delta_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read delta_descriptor, expected length was not %d\n", (int)sizeof(qgf_delta_v1_t)); + return false; + } + + // Make sure this block is valid + if (!qgf_validate_block_header(&delta_descriptor.header, QGF_FRAME_DELTA_DESCRIPTOR_TYPEID, (sizeof(qgf_delta_v1_t) - sizeof(qgf_block_header_v1_t)))) { + return false; + } + + return true; +} + +bool qgf_validate_frame_data_descriptor(qp_stream_t *stream, uint16_t frame_number) { + // Read and validate the data block + qgf_data_v1_t data_descriptor; + if (qp_stream_read(&data_descriptor, sizeof(qgf_data_v1_t), 1, stream) != 1) { + qp_dprintf("Failed to read data_descriptor, expected length was not %d\n", (int)sizeof(qgf_data_v1_t)); + return false; + } + + if (!qgf_validate_block_header(&data_descriptor.header, QGF_FRAME_DATA_DESCRIPTOR_TYPEID, -1)) { + return false; + } + + return true; +} + +bool qgf_validate_stream(qp_stream_t *stream) { + uint16_t frame_count; + if (!qgf_read_graphics_descriptor(stream, NULL, NULL, &frame_count, NULL)) { + return false; + } + + // Read and validate all the frames (automatically validates the frame offset descriptor in the process) + for (uint16_t i = 0; i < frame_count; ++i) { + // Validate the frame descriptor block + uint8_t bpp; + bool has_palette; + bool has_delta; + if (!qgf_validate_frame_descriptor(stream, i, &bpp, &has_palette, &has_delta)) { + return false; + } + + // If we've got a palette block, check it + if (has_palette && !qgf_validate_palette_descriptor(stream, i, bpp)) { + return false; + } + + // If we've got a delta block, check it + if (has_delta && !qgf_validate_delta_descriptor(stream, i)) { + return false; + } + + // Check the data block + if (!qgf_validate_frame_data_descriptor(stream, i)) { + return false; + } + } + + return true; +} + +// Work out the total size of an image definition, assuming we can read far enough into the file +uint32_t qgf_get_total_size(qp_stream_t *stream) { + // Get the original location + uint32_t oldpos = qp_stream_tell(stream); + + // Read the graphics descriptor, grabbing the size + uint32_t total_size; + if (!qgf_read_graphics_descriptor(stream, NULL, NULL, NULL, &total_size)) { + return false; + } + + // Restore the original location + qp_stream_setpos(stream, oldpos); + return total_size; +} diff --git a/quantum/painter/qgf.h b/quantum/painter/qgf.h new file mode 100644 index 0000000000..54585edd04 --- /dev/null +++ b/quantum/painter/qgf.h @@ -0,0 +1,136 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +// Quantum Graphics File "QGF" File Format. +// See https://docs.qmk.fm/#/quantum_painter_qgf for more information. + +#include <stdint.h> +#include <stdbool.h> + +#include "qp_stream.h" +#include "qp_internal.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// QGF structures + +///////////////////////////////////////// +// Common block header + +typedef struct QP_PACKED qgf_block_header_v1_t { + uint8_t type_id; // See each respective block type below. + uint8_t neg_type_id; // Negated type ID, used for detecting parsing errors. + uint32_t length : 24; // 24-bit blob length, allowing for block sizes of a maximum of 16MB. +} qgf_block_header_v1_t; + +_Static_assert(sizeof(qgf_block_header_v1_t) == 5, "qgf_block_header_v1_t must be 5 bytes in v1 of QGF"); + +///////////////////////////////////////// +// Graphics descriptor + +#define QGF_GRAPHICS_DESCRIPTOR_TYPEID 0x00 + +typedef struct QP_PACKED qgf_graphics_descriptor_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x00, .neg_type_id = (~0x00), .length = 18 } + uint32_t magic : 24; // constant, equal to 0x464751 ("QGF") + uint8_t qgf_version; // constant, equal to 0x01 + uint32_t total_file_size; // total size of the entire file, starting at offset zero + uint32_t neg_total_file_size; // negated value of total_file_size + uint16_t image_width; // in pixels + uint16_t image_height; // in pixels + uint16_t frame_count; // minimum of 1 +} qgf_graphics_descriptor_v1_t; + +_Static_assert(sizeof(qgf_graphics_descriptor_v1_t) == (sizeof(qgf_block_header_v1_t) + 18), "qgf_graphics_descriptor_v1_t must be 23 bytes in v1 of QGF"); + +#define QGF_MAGIC 0x464751 + +///////////////////////////////////////// +// Frame offset descriptor + +#define QGF_FRAME_OFFSET_DESCRIPTOR_TYPEID 0x01 + +typedef struct QP_PACKED qgf_frame_offsets_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x01, .neg_type_id = (~0x01), .length = (N * sizeof(uint32_t)) } + uint32_t offset[0]; // '0' signifies that this struct is immediately followed by the frame offsets +} qgf_frame_offsets_v1_t; + +_Static_assert(sizeof(qgf_frame_offsets_v1_t) == sizeof(qgf_block_header_v1_t), "qgf_frame_offsets_v1_t must only contain qgf_block_header_v1_t in v1 of QGF"); + +///////////////////////////////////////// +// Frame descriptor + +#define QGF_FRAME_DESCRIPTOR_TYPEID 0x02 + +typedef struct QP_PACKED qgf_frame_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x02, .neg_type_id = (~0x02), .length = 6 } + qp_image_format_t format : 8; // Frame format, see qp.h. + uint8_t flags; // Frame flags, see below. + painter_compression_t compression_scheme : 8; // Compression scheme, see qp.h. + uint8_t transparency_index; // palette index used for transparent pixels (not yet implemented) + uint16_t delay; // frame delay time for animations (in units of milliseconds) +} qgf_frame_v1_t; + +_Static_assert(sizeof(qgf_frame_v1_t) == (sizeof(qgf_block_header_v1_t) + 6), "qgf_frame_v1_t must be 11 bytes in v1 of QGF"); + +#define QGF_FRAME_FLAG_DELTA 0x02 +#define QGF_FRAME_FLAG_TRANSPARENT 0x01 + +///////////////////////////////////////// +// Frame palette descriptor + +#define QGF_FRAME_PALETTE_DESCRIPTOR_TYPEID 0x03 + +typedef struct QP_PACKED qgf_palette_entry_v1_t { + uint8_t h; // hue component: `[0,360)` degrees is mapped to `[0,255]` uint8_t. + uint8_t s; // saturation component: `[0,1]` is mapped to `[0,255]` uint8_t. + uint8_t v; // value component: `[0,1]` is mapped to `[0,255]` uint8_t. +} qgf_palette_entry_v1_t; + +_Static_assert(sizeof(qgf_palette_entry_v1_t) == 3, "Palette entry is not 3 bytes in size"); + +typedef struct QP_PACKED qgf_palette_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x03, .neg_type_id = (~0x03), .length = (N * 3 * sizeof(uint8_t)) } + qgf_palette_entry_v1_t hsv[0]; // N * hsv, where N is the number of palette entries depending on the frame format in the descriptor +} qgf_palette_v1_t; + +_Static_assert(sizeof(qgf_palette_v1_t) == sizeof(qgf_block_header_v1_t), "qgf_palette_v1_t must only contain qgf_block_header_v1_t in v1 of QGF"); + +///////////////////////////////////////// +// Frame delta descriptor + +#define QGF_FRAME_DELTA_DESCRIPTOR_TYPEID 0x04 + +typedef struct QP_PACKED qgf_delta_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x04, .neg_type_id = (~0x04), .length = 8 } + uint16_t left; // The left pixel location to draw the delta image + uint16_t top; // The top pixel location to draw the delta image + uint16_t right; // The right pixel location to to draw the delta image + uint16_t bottom; // The bottom pixel location to to draw the delta image +} qgf_delta_v1_t; + +_Static_assert(sizeof(qgf_delta_v1_t) == (sizeof(qgf_block_header_v1_t) + 8), "qgf_delta_v1_t must be 13 bytes in v1 of QGF"); + +///////////////////////////////////////// +// Frame data descriptor + +#define QGF_FRAME_DATA_DESCRIPTOR_TYPEID 0x05 + +typedef struct QP_PACKED qgf_data_v1_t { + qgf_block_header_v1_t header; // = { .type_id = 0x05, .neg_type_id = (~0x05), .length = N } + uint8_t data[0]; // 0 signifies that this struct is immediately followed by the length of data specified in the header +} qgf_data_v1_t; + +_Static_assert(sizeof(qgf_data_v1_t) == sizeof(qgf_block_header_v1_t), "qgf_data_v1_t must only contain qgf_block_header_v1_t in v1 of QGF"); + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// QGF API + +uint32_t qgf_get_total_size(qp_stream_t *stream); +bool qgf_validate_stream(qp_stream_t *stream); +bool qgf_validate_block_header(qgf_block_header_v1_t *desc, uint8_t expected_typeid, int32_t expected_length); +bool qgf_read_graphics_descriptor(qp_stream_t *stream, uint16_t *image_width, uint16_t *image_height, uint16_t *frame_count, uint32_t *total_bytes); +bool qgf_parse_format(qp_image_format_t format, uint8_t *bpp, bool *has_palette); +void qgf_seek_to_frame_descriptor(qp_stream_t *stream, uint16_t frame_number); +bool qgf_parse_frame_descriptor(qgf_frame_v1_t *frame_descriptor, uint8_t *bpp, bool *has_palette, bool *is_delta, painter_compression_t *compression_scheme, uint16_t *delay); diff --git a/quantum/painter/qp.c b/quantum/painter/qp.c new file mode 100644 index 0000000000..e292ff6497 --- /dev/null +++ b/quantum/painter/qp.c @@ -0,0 +1,228 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#include <quantum.h> +#include <utf8.h> + +#include "qp_internal.h" +#include "qp_comms.h" +#include "qp_draw.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Internal driver validation + +static bool validate_driver_vtable(struct painter_driver_t *driver) { + return (driver->driver_vtable && driver->driver_vtable->init && driver->driver_vtable->power && driver->driver_vtable->clear && driver->driver_vtable->viewport && driver->driver_vtable->pixdata && driver->driver_vtable->palette_convert && driver->driver_vtable->append_pixels) ? true : false; +} + +static bool validate_comms_vtable(struct painter_driver_t *driver) { + return (driver->comms_vtable && driver->comms_vtable->comms_init && driver->comms_vtable->comms_start && driver->comms_vtable->comms_stop && driver->comms_vtable->comms_send) ? true : false; +} + +static bool validate_driver_integrity(struct painter_driver_t *driver) { + return validate_driver_vtable(driver) && validate_comms_vtable(driver); +} + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter External API: qp_init + +bool qp_init(painter_device_t device, painter_rotation_t rotation) { + qp_dprintf("qp_init: entry\n"); + struct painter_driver_t *driver = (struct painter_driver_t *)device; + + driver->validate_ok = false; + if (!validate_driver_integrity(driver)) { + qp_dprintf("Failed to validate driver integrity in qp_init\n"); + return false; + } + + driver->validate_ok = true; + + if (!qp_comms_init(device)) { + driver->validate_ok = false; + qp_dprintf("qp_init: fail (could not init comms)\n"); + return false; + } + + if (!qp_comms_start(device)) { + qp_dprintf("qp_init: fail (could not start comms)\n"); + return |