fix case of PICO_SCANVIDEO_48MHZ and fix test_pattern for lower bit depths

Author: kilograham

audio/sine_wave/CMakeLists.txt

@@ -14,6 +14,11 @@ if (TARGET pico_audio_i2s)
             PICO_AUDIO_I2S_MONO_INPUT=1
             #define for our example code
             USE_AUDIO_I2S=1
+#            PICO_AUDIO_I2S_DATA_PIN=22
+#            PICO_AUDIO_I2S_CLOCK_PIN_BASE=23
+#            PICO_DEFAULT_UART=0
+#            PICO_DEFAULT_UART_TX_PIN=28
+#            PICO_DEFAULT_UART_RX_PIN=29
             )
     # create map/bin/hex file etc.
     pico_add_extra_outputs(sine_wave_i2s)

audio/sine_wave/sine_wave.c

@@ -20,6 +20,11 @@
 
 #include "pico/audio_i2s.h"
 
+#if PICO_ON_DEVICE
+#include "pico/binary_info.h"
+bi_decl(bi_3pins_with_names(PICO_AUDIO_I2S_DATA_PIN, "I2S DIN", PICO_AUDIO_I2S_CLOCK_PIN_BASE, "I2S BCK", PICO_AUDIO_I2S_CLOCK_PIN_BASE+1, "I2S LRCK"));
+#endif
+
 #elif USE_AUDIO_PWM
 #include "pico/audio_pwm.h"
 #elif USE_AUDIO_SPDIF

scanvideo/demo1/demo1.c

@@ -602,7 +602,7 @@ int main(void) {
 
     gpio_put(27, 0);
 #if PICO_ON_DEVICE && !PICO_ON_FPGA
-#if PICO_SCANVIDEO_48MHz
+#if PICO_SCANVIDEO_48MHZ
     /* set to double frequency 48Mhz for some examples which were written for a higher clock speed */
     set_sys_clock_khz(96000, true);
 #endif

scanvideo/hscroll_dma_tiles/hscroll_dma_tiles.c

@@ -572,7 +572,7 @@ void go_core1(void (*execute)()) {
 }
 
 int main(void) {
-#if PICO_SCANVIDEO_48MHz
+#if PICO_SCANVIDEO_48MHZ
     set_sys_clock_48mhz();
 #endif
     setup_default_uart();

scanvideo/mario_tiles/mario_tiles.c

@@ -665,7 +665,7 @@ void go_core1(void (*execute)()) {
 }
 
 int main(void) {
-#if PICO_SCANVIDEO_48MHz
+#if PICO_SCANVIDEO_48MHZ
     set_sys_clock_48mhz();
 #endif
     setup_default_uart();

scanvideo/scanvideo_minimal/scanvideo_minimal.c

@@ -104,7 +104,7 @@ void render_scanline(struct scanvideo_scanline_buffer *dest, int core) {
 
 
 int main(void) {
-#if PICO_SCANVIDEO_48MHz
+#if PICO_SCANVIDEO_48MHZ
     set_sys_clock_48mhz();
 #endif
     // Re init uart now that clk_peri has changed

scanvideo/sprite_demo/sprite_demo.c

@@ -176,7 +176,7 @@ int main(void) {
     sleep_ms(10);
     set_sys_clock_khz(400000, true);
 #else
-#if PICO_SCANVIDEO_48MHz
+#if PICO_SCANVIDEO_48MHZ
     set_sys_clock_khz(192000, true);
 #else
     set_sys_clock_khz(200000, true);

scanvideo/test_pattern/test_pattern.c

@@ -58,19 +58,18 @@ int main(void) {
 void draw_color_bar(scanvideo_scanline_buffer_t *buffer) {
     // figure out 1/32 of the color value
     uint line_num = scanvideo_scanline_number(buffer->scanline_id);
-    int32_t color_step = 1 + (line_num * 7 / vga_mode.height);
-    color_step = PICO_SCANVIDEO_PIXEL_FROM_RGB5(color_step & 1u, (color_step >> 1u) & 1u, (color_step >> 2u) & 1u);
-    if (invert) color_step = -color_step;
+    uint32_t primary_color = 1u + (line_num * 7 / vga_mode.height);
+    uint32_t color_mask = PICO_SCANVIDEO_PIXEL_FROM_RGB5(0x1f * (primary_color & 1u), 0x1f * ((primary_color >> 1u) & 1u), 0x1f * ((primary_color >> 2u) & 1u));
     uint bar_width = vga_mode.width / 32;
 
     uint16_t *p = (uint16_t *) buffer->data;
-    int32_t color = invert ? PICO_SCANVIDEO_PIXEL_FROM_RGB8(255, 255, 255) : 0;
 
+    uint32_t invert_bits = invert ? PICO_SCANVIDEO_PIXEL_FROM_RGB5(0x1f,0x1f,0x1f) : 0;
     for (uint bar = 0; bar < 32; bar++) {
         *p++ = COMPOSABLE_COLOR_RUN;
-        *p++ = color;
+        uint32_t color = PICO_SCANVIDEO_PIXEL_FROM_RGB5(bar, bar, bar);
+        *p++ = (color & color_mask) ^ invert_bits;
         *p++ = bar_width - 3;
-        color += color_step;
     }
 
     // 32 * 3, so we should be word aligned