416 lines
17 KiB
C
416 lines
17 KiB
C
// Copyright 2021-2023 Nick Brassel (@tzarc)
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "qp_internal.h"
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#include "qp_draw.h"
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#include "qp_comms.h"
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#include "qgf.h"
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#include "deferred_exec.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// QGF image handles
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typedef struct qgf_image_handle_t {
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painter_image_desc_t base;
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bool validate_ok;
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union {
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qp_stream_t stream;
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qp_memory_stream_t mem_stream;
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#ifdef QP_STREAM_HAS_FILE_IO
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qp_file_stream_t file_stream;
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#endif // QP_STREAM_HAS_FILE_IO
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};
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} qgf_image_handle_t;
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static qgf_image_handle_t image_descriptors[QUANTUM_PAINTER_NUM_IMAGES] = {0};
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Helper: load image from stream
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static painter_image_handle_t qp_load_image_internal(bool (*stream_factory)(qgf_image_handle_t *image, void *arg), void *arg) {
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qp_dprintf("qp_load_image: entry\n");
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qgf_image_handle_t *image = NULL;
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// Find a free slot
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for (int i = 0; i < QUANTUM_PAINTER_NUM_IMAGES; ++i) {
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if (!image_descriptors[i].validate_ok) {
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image = &image_descriptors[i];
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break;
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}
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}
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// Drop out if not found
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if (!image) {
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qp_dprintf("qp_load_image: fail (no free slot)\n");
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return NULL;
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}
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if (!stream_factory(image, arg)) {
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qp_dprintf("qp_load_image: fail (could not create stream)\n");
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return NULL;
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}
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// Now that we know the length, validate the input data
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if (!qgf_validate_stream(&image->stream)) {
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qp_dprintf("qp_load_image: fail (failed validation)\n");
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return NULL;
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}
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// Fill out the QP image descriptor
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qgf_read_graphics_descriptor(&image->stream, &image->base.width, &image->base.height, &image->base.frame_count, NULL);
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// Validation success, we can return the handle
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image->validate_ok = true;
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qp_dprintf("qp_load_image: ok\n");
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return (painter_image_handle_t)image;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Quantum Painter External API: qp_load_image_mem
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static inline bool image_mem_stream_factory(qgf_image_handle_t *image, void *arg) {
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void *buffer = arg;
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// Assume we can read the graphics descriptor
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image->mem_stream = qp_make_memory_stream((void *)buffer, sizeof(qgf_graphics_descriptor_v1_t));
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// Update the length of the stream to match, and rewind to the start
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image->mem_stream.length = qgf_get_total_size(&image->stream);
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image->mem_stream.position = 0;
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return true;
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}
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painter_image_handle_t qp_load_image_mem(const void *buffer) {
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return qp_load_image_internal(image_mem_stream_factory, (void *)buffer);
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Quantum Painter External API: qp_close_image
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bool qp_close_image(painter_image_handle_t image) {
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qgf_image_handle_t *qgf_image = (qgf_image_handle_t *)image;
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if (!qgf_image->validate_ok) {
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qp_dprintf("qp_close_image: fail (invalid image)\n");
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return false;
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}
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// Free up this image for use elsewhere.
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qgf_image->validate_ok = false;
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qp_stream_close(&qgf_image->stream);
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return true;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Quantum Painter External API: qp_drawimage
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bool qp_drawimage(painter_device_t device, uint16_t x, uint16_t y, painter_image_handle_t image) {
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return qp_drawimage_recolor(device, x, y, image, 0, 0, 255, 0, 0, 0);
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Quantum Painter External API: qp_drawimage_recolor
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typedef struct qgf_frame_info_t {
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painter_compression_t compression_scheme;
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uint8_t bpp;
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bool has_palette;
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bool is_delta;
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uint16_t left;
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uint16_t top;
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uint16_t right;
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uint16_t bottom;
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uint16_t delay;
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} qgf_frame_info_t;
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static bool qp_drawimage_prepare_frame_for_stream_read(painter_device_t device, qgf_image_handle_t *qgf_image, uint16_t frame_number, qp_pixel_t fg_hsv888, qp_pixel_t bg_hsv888, qgf_frame_info_t *info) {
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struct painter_driver_t *driver = (struct painter_driver_t *)device;
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// Drop out if we can't actually place the data we read out anywhere
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if (!info) {
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qp_dprintf("Failed to prepare stream for read, output info buffer unavailable\n");
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return false;
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}
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// Seek to the frame
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qgf_seek_to_frame_descriptor(&qgf_image->stream, frame_number);
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// Read the frame descriptor
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qgf_frame_v1_t frame_descriptor;
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if (qp_stream_read(&frame_descriptor, sizeof(qgf_frame_v1_t), 1, &qgf_image->stream) != 1) {
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qp_dprintf("Failed to read frame_descriptor, expected length was not %d\n", (int)sizeof(qgf_frame_v1_t));
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return false;
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}
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// Parse out the frame info
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if (!qgf_parse_frame_descriptor(&frame_descriptor, &info->bpp, &info->has_palette, &info->is_delta, &info->compression_scheme, &info->delay)) {
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return false;
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}
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// Ensure we aren't reusing any palette
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qp_internal_invalidate_palette();
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if (!qp_internal_bpp_capable(info->bpp)) {
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qp_dprintf("qp_drawimage_recolor: fail (image bpp too high (%d), check QUANTUM_PAINTER_SUPPORTS_256_PALETTE or QUANTUM_PAINTER_SUPPORTS_NATIVE_COLORS)\n", (int)info->bpp);
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qp_comms_stop(device);
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return false;
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}
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// Handle palette if needed
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const uint16_t palette_entries = 1u << info->bpp;
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bool needs_pixconvert = false;
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if (info->has_palette) {
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// Load the palette from the stream
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if (!qp_internal_load_qgf_palette((qp_stream_t *)&qgf_image->stream, info->bpp)) {
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return false;
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}
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needs_pixconvert = true;
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} else {
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if (info->bpp <= 8) {
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// Interpolate from fg/bg
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needs_pixconvert = qp_internal_interpolate_palette(fg_hsv888, bg_hsv888, palette_entries);
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}
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}
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if (needs_pixconvert) {
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// Convert the palette to native format
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if (!driver->driver_vtable->palette_convert(device, palette_entries, qp_internal_global_pixel_lookup_table)) {
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qp_dprintf("qp_drawimage_recolor: fail (could not convert pixels to native)\n");
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qp_comms_stop(device);
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return false;
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}
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}
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// Handle delta if needed
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if (info->is_delta) {
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qgf_delta_v1_t delta_descriptor;
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if (qp_stream_read(&delta_descriptor, sizeof(qgf_delta_v1_t), 1, &qgf_image->stream) != 1) {
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qp_dprintf("Failed to read delta_descriptor, expected length was not %d\n", (int)sizeof(qgf_delta_v1_t));
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return false;
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}
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info->left = delta_descriptor.left;
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info->top = delta_descriptor.top;
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info->right = delta_descriptor.right;
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info->bottom = delta_descriptor.bottom;
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}
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// Read the data block
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qgf_data_v1_t data_descriptor;
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if (qp_stream_read(&data_descriptor, sizeof(qgf_data_v1_t), 1, &qgf_image->stream) != 1) {
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qp_dprintf("Failed to read data_descriptor, expected length was not %d\n", (int)sizeof(qgf_data_v1_t));
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return false;
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}
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// Stream is now at the point of being able to read pixdata
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return true;
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}
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static bool qp_drawimage_recolor_impl(painter_device_t device, uint16_t x, uint16_t y, painter_image_handle_t image, int frame_number, qgf_frame_info_t *frame_info, qp_pixel_t fg_hsv888, qp_pixel_t bg_hsv888) {
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qp_dprintf("qp_drawimage_recolor: entry\n");
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struct painter_driver_t *driver = (struct painter_driver_t *)device;
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if (!driver->validate_ok) {
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qp_dprintf("qp_drawimage_recolor: fail (validation_ok == false)\n");
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return false;
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}
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qgf_image_handle_t *qgf_image = (qgf_image_handle_t *)image;
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if (!qgf_image->validate_ok) {
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qp_dprintf("qp_drawimage_recolor: fail (invalid image)\n");
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return false;
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}
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// Read the frame info
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if (!qp_drawimage_prepare_frame_for_stream_read(device, qgf_image, frame_number, fg_hsv888, bg_hsv888, frame_info)) {
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qp_dprintf("qp_drawimage_recolor: fail (could not read frame %d)\n", frame_number);
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return false;
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}
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if (!qp_comms_start(device)) {
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qp_dprintf("qp_drawimage_recolor: fail (could not start comms)\n");
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return false;
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}
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uint16_t l, t, r, b;
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if (frame_info->is_delta) {
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l = x + frame_info->left;
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t = y + frame_info->top;
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r = x + frame_info->right - 1;
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b = y + frame_info->bottom - 1;
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} else {
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l = x;
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t = y;
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r = x + image->width - 1;
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b = y + image->height - 1;
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}
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uint32_t pixel_count = ((uint32_t)(r - l + 1)) * (b - t + 1);
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// Configure where we're going to be rendering to
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if (!driver->driver_vtable->viewport(device, l, t, r, b)) {
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qp_dprintf("qp_drawimage_recolor: fail (could not set viewport)\n");
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qp_comms_stop(device);
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return false;
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}
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// Set up the input state
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struct qp_internal_byte_input_state input_state = {.device = device, .src_stream = &qgf_image->stream};
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qp_internal_byte_input_callback input_callback = qp_internal_prepare_input_state(&input_state, frame_info->compression_scheme);
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if (input_callback == NULL) {
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qp_dprintf("qp_drawimage_recolor: fail (invalid image compression scheme)\n");
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qp_comms_stop(device);
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return false;
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}
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bool ret = false;
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if (frame_info->bpp <= 8) {
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// Set up the output state
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struct qp_internal_pixel_output_state output_state = {.device = device, .pixel_write_pos = 0, .max_pixels = qp_internal_num_pixels_in_buffer(device)};
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// Decode the pixel data and stream to the display
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ret = qp_internal_decode_palette(device, pixel_count, frame_info->bpp, input_callback, &input_state, qp_internal_global_pixel_lookup_table, qp_internal_pixel_appender, &output_state);
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// Any leftovers need transmission as well.
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if (ret && output_state.pixel_write_pos > 0) {
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ret &= driver->driver_vtable->pixdata(device, qp_internal_global_pixdata_buffer, output_state.pixel_write_pos);
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}
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} else {
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// Set up the output state
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struct qp_internal_byte_output_state output_state = {.device = device, .byte_write_pos = 0, .max_bytes = qp_internal_num_pixels_in_buffer(device) * driver->native_bits_per_pixel / 8};
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// Stream the raw pixel data to the display
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uint32_t byte_count = pixel_count * frame_info->bpp / 8;
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ret = qp_internal_send_bytes(device, byte_count, input_callback, &input_state, qp_internal_byte_appender, &output_state);
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// Any leftovers need transmission as well.
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if (ret && output_state.byte_write_pos > 0) {
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ret &= driver->driver_vtable->pixdata(device, qp_internal_global_pixdata_buffer, output_state.byte_write_pos * 8 / driver->native_bits_per_pixel);
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}
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}
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qp_dprintf("qp_drawimage_recolor: %s\n", ret ? "ok" : "fail");
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qp_comms_stop(device);
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return ret;
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}
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bool qp_drawimage_recolor(painter_device_t device, uint16_t x, uint16_t y, painter_image_handle_t image, uint8_t hue_fg, uint8_t sat_fg, uint8_t val_fg, uint8_t hue_bg, uint8_t sat_bg, uint8_t val_bg) {
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qgf_frame_info_t frame_info = {0};
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qp_pixel_t fg_hsv888 = {.hsv888 = {.h = hue_fg, .s = sat_fg, .v = val_fg}};
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qp_pixel_t bg_hsv888 = {.hsv888 = {.h = hue_bg, .s = sat_bg, .v = val_bg}};
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return qp_drawimage_recolor_impl(device, x, y, image, 0, &frame_info, fg_hsv888, bg_hsv888);
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Quantum Painter External API: qp_animate
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deferred_token qp_animate(painter_device_t device, uint16_t x, uint16_t y, painter_image_handle_t image) {
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return qp_animate_recolor(device, x, y, image, 0, 0, 255, 0, 0, 0);
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Quantum Painter External API: qp_animate_recolor
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typedef struct animation_state_t {
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painter_device_t device;
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uint16_t x;
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uint16_t y;
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painter_image_handle_t image;
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qp_pixel_t fg_hsv888;
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qp_pixel_t bg_hsv888;
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uint16_t frame_number;
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deferred_token defer_token;
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} animation_state_t;
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static deferred_executor_t animation_executors[QUANTUM_PAINTER_CONCURRENT_ANIMATIONS] = {0};
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static animation_state_t animation_states[QUANTUM_PAINTER_CONCURRENT_ANIMATIONS] = {0};
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static deferred_token qp_render_animation_state(animation_state_t *state, uint16_t *delay_ms) {
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qgf_frame_info_t frame_info = {0};
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qp_dprintf("qp_render_animation_state: entry (frame #%d)\n", (int)state->frame_number);
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bool ret = qp_drawimage_recolor_impl(state->device, state->x, state->y, state->image, state->frame_number, &frame_info, state->fg_hsv888, state->bg_hsv888);
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if (ret) {
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++state->frame_number;
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if (state->frame_number >= state->image->frame_count) {
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state->frame_number = 0;
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}
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*delay_ms = frame_info.delay;
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}
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qp_dprintf("qp_render_animation_state: %s (delay %dms)\n", ret ? "ok" : "fail", (int)(*delay_ms));
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return ret;
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}
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static uint32_t animation_callback(uint32_t trigger_time, void *cb_arg) {
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animation_state_t *state = (animation_state_t *)cb_arg;
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uint16_t delay_ms;
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bool ret = qp_render_animation_state(state, &delay_ms);
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if (!ret) {
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// Setting the device to NULL clears the animation slot
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state->device = NULL;
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}
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// If we're successful, keep animating -- returning 0 cancels the deferred execution
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return ret ? delay_ms : 0;
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}
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deferred_token qp_animate_recolor(painter_device_t device, uint16_t x, uint16_t y, painter_image_handle_t image, uint8_t hue_fg, uint8_t sat_fg, uint8_t val_fg, uint8_t hue_bg, uint8_t sat_bg, uint8_t val_bg) {
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qp_dprintf("qp_animate_recolor: entry\n");
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animation_state_t *anim_state = NULL;
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for (int i = 0; i < QUANTUM_PAINTER_CONCURRENT_ANIMATIONS; ++i) {
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if (animation_states[i].device == NULL) {
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anim_state = &animation_states[i];
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break;
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}
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}
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if (!anim_state) {
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qp_dprintf("qp_animate_recolor: fail (could not find free animation slot)\n");
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return INVALID_DEFERRED_TOKEN;
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}
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// Prepare the animation state
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anim_state->device = device;
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anim_state->x = x;
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anim_state->y = y;
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anim_state->image = image;
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anim_state->fg_hsv888 = (qp_pixel_t){.hsv888 = {.h = hue_fg, .s = sat_fg, .v = val_fg}};
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anim_state->bg_hsv888 = (qp_pixel_t){.hsv888 = {.h = hue_bg, .s = sat_bg, .v = val_bg}};
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anim_state->frame_number = 0;
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// Draw the first frame
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uint16_t delay_ms;
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if (!qp_render_animation_state(anim_state, &delay_ms)) {
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anim_state->device = NULL; // disregard the allocated animation slot
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qp_dprintf("qp_animate_recolor: fail (could not render first frame)\n");
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return INVALID_DEFERRED_TOKEN;
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}
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// Set up the timer
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anim_state->defer_token = defer_exec_advanced(animation_executors, QUANTUM_PAINTER_CONCURRENT_ANIMATIONS, delay_ms, animation_callback, anim_state);
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if (anim_state->defer_token == INVALID_DEFERRED_TOKEN) {
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anim_state->device = NULL; // disregard the allocated animation slot
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qp_dprintf("qp_animate_recolor: fail (could not set up animation executor)\n");
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return INVALID_DEFERRED_TOKEN;
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}
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qp_dprintf("qp_animate_recolor: ok (deferred token = %d)\n", (int)anim_state->defer_token);
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return anim_state->defer_token;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Quantum Painter External API: qp_stop_animation
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void qp_stop_animation(deferred_token anim_token) {
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for (int i = 0; i < QUANTUM_PAINTER_CONCURRENT_ANIMATIONS; ++i) {
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if (animation_states[i].defer_token == anim_token) {
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cancel_deferred_exec_advanced(animation_executors, QUANTUM_PAINTER_CONCURRENT_ANIMATIONS, anim_token);
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animation_states[i].device = NULL;
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return;
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}
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}
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Quantum Painter Core API: qp_internal_animation_tick
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void qp_internal_animation_tick(void) {
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static uint32_t last_anim_exec = 0;
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deferred_exec_advanced_task(animation_executors, QUANTUM_PAINTER_CONCURRENT_ANIMATIONS, &last_anim_exec);
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}
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