kopia lustrzana https://github.com/pimoroni/pimoroni-pico
Growing circles - runs at 30FPS
rodzic
5f8e7556f0
commit
9acc270418
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@ -93,12 +93,16 @@ namespace pimoroni {
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pio_offset = pio_add_program(pio, &sram_program);
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aps6404_program_init(pio, pio_sm, pio_offset, pin_csn, pin_d0, false, false, false);
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}
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last_cmd_was_write = false;
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}
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void APS6404::write(uint32_t addr, uint32_t* data, uint32_t len_in_bytes) {
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wait_for_finish_blocking();
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setup_cmd_buffer_dma(true);
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if (!last_cmd_was_write) {
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wait_for_finish_blocking();
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setup_cmd_buffer_dma(true);
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last_cmd_was_write = true;
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}
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for (int len = len_in_bytes, page_len = std::min(PAGE_SIZE, len);
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len > 0;
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@ -128,16 +132,18 @@ namespace pimoroni {
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}
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void APS6404::write_repeat(uint32_t addr, uint32_t data, uint32_t len_in_bytes) {
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repeat_data = data;
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wait_for_finish_blocking();
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setup_cmd_buffer_dma(true);
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if (!last_cmd_was_write) {
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wait_for_finish_blocking();
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setup_cmd_buffer_dma(true);
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last_cmd_was_write = true;
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}
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for (int len = len_in_bytes, page_len = std::min(PAGE_SIZE, len);
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len > 0;
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addr += page_len, len -= page_len, page_len = std::min(PAGE_SIZE, len))
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{
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wait_for_finish_blocking();
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repeat_data = data;
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pio_sm_put_blocking(pio, pio_sm, (page_len << 1) - 1);
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pio_sm_put_blocking(pio, pio_sm, 0x38000000u | addr);
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@ -193,6 +199,7 @@ namespace pimoroni {
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}
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void APS6404::start_read(uint32_t* read_buf, uint32_t total_len_in_words, int chain_channel) {
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last_cmd_was_write = false;
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wait_for_finish_blocking();
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dma_channel_config c = dma_channel_get_default_config(dma_channel);
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@ -57,6 +57,7 @@ namespace pimoroni {
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uint dma_channel;
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uint read_cmd_dma_channel;
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bool last_cmd_was_write = false;
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static constexpr int MULTI_READ_MAX_PAGES = 128;
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uint32_t multi_read_cmd_buffer[3 * MULTI_READ_MAX_PAGES];
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@ -12,6 +12,8 @@ using namespace pimoroni;
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#define FRAME_HEIGHT 480
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int main() {
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set_sys_clock_khz(200000, true);
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stdio_init_all();
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constexpr uint BUTTON_A = 9;
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@ -37,26 +39,47 @@ int main() {
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printf("Starting\n");
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constexpr int NUM_CIRCLES = 50;
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struct Circle {
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uint16_t x, y, size, grow;
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} circles[NUM_CIRCLES];
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for(int i =0 ; i < 50 ; i++)
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{
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circles[i].size = (rand() % 50) + 1;
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circles[i].grow = std::max(0, (rand() % 50) - 25);
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circles[i].x = rand() % graphics.bounds.w;
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circles[i].y = rand() % graphics.bounds.h;
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}
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while (true) {
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while(gpio_get(BUTTON_A) == 1) {
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sleep_ms(10);
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}
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//while(gpio_get(BUTTON_A) == 1) {
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// sleep_ms(10);
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//}
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uint32_t render_start_time = time_us_32();
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graphics.set_pen(0xFFFF);
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graphics.clear();
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for(int i =0 ; i < 50 ; i++)
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for(int i =0 ; i < NUM_CIRCLES ; i++)
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{
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uint size = 25 + (rand() % 50);
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uint x = rand() % graphics.bounds.w;
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uint y = rand() % graphics.bounds.h;
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graphics.set_pen(0);
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graphics.circle(Point(x, y), size);
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graphics.circle(Point(circles[i].x, circles[i].y), circles[i].size);
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graphics.set_pen(RGB::from_hsv(i * 0.02f, 1.0f, 1.0f).to_rgb555());
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graphics.circle(Point(x, y), size-2);
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graphics.circle(Point(circles[i].x, circles[i].y), circles[i].size-2);
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if (circles[i].grow) {
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circles[i].size++;
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circles[i].grow--;
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} else {
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circles[i].size--;
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if (circles[i].size == 0) {
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circles[i].size = 1;
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circles[i].grow = rand() % 75;
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circles[i].x = rand() % graphics.bounds.w;
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circles[i].y = rand() % graphics.bounds.h;
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}
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}
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}
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#if 0
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