[QP] Add support for OLED, variable framebuffer bpp (#19997)

Co-authored-by: Pablo Martínez <58857054+elpekenin@users.noreply.github.com>
Co-authored-by: Dasky <32983009+daskygit@users.noreply.github.com>
Fixup delta frame coordinates after #20296.

drivers/painter/generic/qp_surface_mono1bpp.c

@@ -0,0 +1,113 @@
+// Copyright 2022 Nick Brassel (@tzarc)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#ifdef QUANTUM_PAINTER_SURFACE_ENABLE
+
+#    include "color.h"
+#    include "qp_draw.h"
+#    include "qp_surface_internal.h"
+#    include "qp_comms_dummy.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Surface driver impl: mono1bpp
+
+static inline void setpixel_mono1bpp(surface_painter_device_t *surface, uint16_t x, uint16_t y, bool mono_pixel) {
+    uint16_t w = surface->base.panel_width;
+    uint16_t h = surface->base.panel_height;
+
+    // Drop out if it's off-screen
+    if (x >= w || y >= h) {
+        return;
+    }
+
+    // Figure out which location needs to be updated
+    uint32_t pixel_num   = y * w + x;
+    uint32_t byte_offset = pixel_num / 8;
+    uint8_t  bit_offset  = pixel_num % 8;
+    bool     curr_val    = (surface->u8buffer[byte_offset] & (1 << bit_offset)) ? true : false;
+
+    // Skip messing with the dirty info if the original value already matches
+    if (curr_val != mono_pixel) {
+        // Update the dirty region
+        qp_surface_update_dirty(&surface->dirty, x, y);
+
+        // Update the pixel data in the buffer
+        if (mono_pixel) {
+            surface->u8buffer[byte_offset] |= (1 << bit_offset);
+        } else {
+            surface->u8buffer[byte_offset] &= ~(1 << bit_offset);
+        }
+    }
+}
+
+static inline void append_pixel_mono1bpp(surface_painter_device_t *surface, bool mono_pixel) {
+    setpixel_mono1bpp(surface, surface->viewport.pixdata_x, surface->viewport.pixdata_y, mono_pixel);
+    qp_surface_increment_pixdata_location(&surface->viewport);
+}
+
+static inline void stream_pixdata_mono1bpp(surface_painter_device_t *surface, const uint8_t *data, uint32_t native_pixel_count) {
+    for (uint32_t pixel_counter = 0; pixel_counter < native_pixel_count; ++pixel_counter) {
+        uint32_t byte_offset = pixel_counter / 8;
+        uint8_t  bit_offset  = pixel_counter % 8;
+        append_pixel_mono1bpp(surface, (data[byte_offset] & (1 << bit_offset)) ? true : false);
+    }
+}
+
+// Stream pixel data to the current write position in GRAM
+static bool qp_surface_pixdata_mono1bpp(painter_device_t device, const void *pixel_data, uint32_t native_pixel_count) {
+    painter_driver_t *        driver  = (painter_driver_t *)device;
+    surface_painter_device_t *surface = (surface_painter_device_t *)driver;
+    stream_pixdata_mono1bpp(surface, (const uint8_t *)pixel_data, native_pixel_count);
+    return true;
+}
+
+// Pixel colour conversion
+static bool qp_surface_palette_convert_mono1bpp(painter_device_t device, int16_t palette_size, qp_pixel_t *palette) {
+    for (int16_t i = 0; i < palette_size; ++i) {
+        palette[i].mono = (palette[i].hsv888.v > 127) ? 1 : 0;
+    }
+    return true;
+}
+
+// Append pixels to the target location, keyed by the pixel index
+static bool qp_surface_append_pixels_mono1bpp(painter_device_t device, uint8_t *target_buffer, qp_pixel_t *palette, uint32_t pixel_offset, uint32_t pixel_count, uint8_t *palette_indices) {
+    for (uint32_t i = 0; i < pixel_count; ++i) {
+        uint32_t pixel_num   = pixel_offset + i;
+        uint32_t byte_offset = pixel_num / 8;
+        uint8_t  bit_offset  = pixel_num % 8;
+        if (palette[palette_indices[i]].mono) {
+            target_buffer[byte_offset] |= (1 << bit_offset);
+        } else {
+            target_buffer[byte_offset] &= ~(1 << bit_offset);
+        }
+    }
+    return true;
+}
+
+static bool mono1bpp_target_pixdata_transfer(painter_driver_t *surface_driver, painter_driver_t *target_driver, uint16_t x, uint16_t y, bool entire_surface) {
+    return false; // Not yet supported.
+}
+
+static bool qp_surface_append_pixdata_mono1bpp(painter_device_t device, uint8_t *target_buffer, uint32_t pixdata_offset, uint8_t pixdata_byte) {
+    return false; // Just use 1bpp images.
+}
+
+const surface_painter_driver_vtable_t mono1bpp_surface_driver_vtable = {
+    .base =
+        {
+            .init            = qp_surface_init,
+            .power           = qp_surface_power,
+            .clear           = qp_surface_clear,
+            .flush           = qp_surface_flush,
+            .pixdata         = qp_surface_pixdata_mono1bpp,
+            .viewport        = qp_surface_viewport,
+            .palette_convert = qp_surface_palette_convert_mono1bpp,
+            .append_pixels   = qp_surface_append_pixels_mono1bpp,
+            .append_pixdata  = qp_surface_append_pixdata_mono1bpp,
+        },
+    .target_pixdata_transfer = mono1bpp_target_pixdata_transfer,
+};
+
+SURFACE_FACTORY_FUNCTION_IMPL(qp_make_mono1bpp_surface, mono1bpp_surface_driver_vtable, 1);
+
+#endif // QUANTUM_PAINTER_SURFACE_ENABLE