From 6e3fc9aca8109995f2158b4ec07d73343a649388 Mon Sep 17 00:00:00 2001 From: b0xcat Date: Tue, 5 May 2026 22:06:53 +0200 Subject: [PATCH 3/5] Add partial blit support to flow3r gc9a01 code --- components/flow3r_bsp/flow3r_bsp.h | 6 ++++++ components/flow3r_bsp/flow3r_bsp_display.c | 10 ++++++++++ components/flow3r_bsp/flow3r_bsp_gc9a01.c | 20 ++++++++++++++++++++ components/flow3r_bsp/flow3r_bsp_gc9a01.h | 9 +++++++++ 4 files changed, 45 insertions(+) diff --git a/components/flow3r_bsp/flow3r_bsp.h b/components/flow3r_bsp/flow3r_bsp.h index bdfb1c4..5aed7b1 100644 --- a/components/flow3r_bsp/flow3r_bsp.h +++ b/components/flow3r_bsp/flow3r_bsp.h @@ -27,6 +27,12 @@ void flow3r_bsp_display_send_fb_osd(void *fb_data, int bits, int scale, void *osd_data, int osd_x0, int osd_y0, int osd_x1, int osd_y1); +// Send pre-rendered pixel data to a rectangular region of the display. +// Data is w*h pixels of 16bpp RGB565 byteswapped, contiguous row-major. +void flow3r_bsp_display_send_rect(const void *data, + uint16_t x, uint16_t y, + uint16_t w, uint16_t h); + // Set display backlight, as integer percent value (from 0 to 100, clamped). // No-op if display hasn't been successfully initialized. void flow3r_bsp_display_set_backlight(uint8_t percent); diff --git a/components/flow3r_bsp/flow3r_bsp_display.c b/components/flow3r_bsp/flow3r_bsp_display.c index 29ebc59..c38f8a8 100644 --- a/components/flow3r_bsp/flow3r_bsp_display.c +++ b/components/flow3r_bsp/flow3r_bsp_display.c @@ -64,6 +64,16 @@ void flow3r_bsp_display_send_fb(void *fb_data, int bits) { flow3r_bsp_display_send_fb_osd(fb_data, bits, 1, NULL, 0, 0, 0, 0); } +void flow3r_bsp_display_send_rect(const void *data, + uint16_t x, uint16_t y, + uint16_t w, uint16_t h) { + if (!gc9a01_initialized) return; + esp_err_t ret = flow3r_bsp_gc9a01_blit_rect(&gc9a01, data, x, y, w, h); + if (ret != ESP_OK) { + ESP_LOGE(TAG, "display rect blit failed: %s", esp_err_to_name(ret)); + } +} + void flow3r_bsp_display_set_backlight(uint8_t percent) { if (!gc9a01_initialized) { return; diff --git a/components/flow3r_bsp/flow3r_bsp_gc9a01.c b/components/flow3r_bsp/flow3r_bsp_gc9a01.c index 3616391..98b0de6 100644 --- a/components/flow3r_bsp/flow3r_bsp_gc9a01.c +++ b/components/flow3r_bsp/flow3r_bsp_gc9a01.c @@ -1096,3 +1096,23 @@ esp_err_t flow3r_bsp_gc9a01_blit_full(flow3r_bsp_gc9a01_t *gc9a01, const void *fb, int bits) { return flow3r_bsp_gc9a01_blit_osd(gc9a01, fb, bits, 1, NULL, 0, 0, 0, 0); } + +esp_err_t flow3r_bsp_gc9a01_blit_rect(flow3r_bsp_gc9a01_t *gc9a01, + const void *data, + uint16_t x, uint16_t y, + uint16_t w, uint16_t h) { + if (x >= 240 || y >= 240 || w == 0 || h == 0) return ESP_OK; + if (x + w > 240) w = 240 - x; + if (y + h > 240) h = 240 - y; + + esp_err_t ret; + ret = flow3r_bsp_gc9a01_column_set(gc9a01, x, x + w - 1); + if (ret != ESP_OK) return ret; + ret = flow3r_bsp_gc9a01_row_set(gc9a01, y, y + h - 1); + if (ret != ESP_OK) return ret; + ret = flow3r_bsp_gc9a01_cmd_sync(gc9a01, Cmd_RAMWR); + if (ret != ESP_OK) return ret; + ret = flow3r_bsp_gc9a01_data_sync(gc9a01, data, w * h * 2); + + return ret; +} diff --git a/components/flow3r_bsp/flow3r_bsp_gc9a01.h b/components/flow3r_bsp/flow3r_bsp_gc9a01.h index 28ed0cb..d142f5a 100644 --- a/components/flow3r_bsp/flow3r_bsp_gc9a01.h +++ b/components/flow3r_bsp/flow3r_bsp_gc9a01.h @@ -74,6 +74,15 @@ esp_err_t flow3r_bsp_gc9a01_blit_osd(flow3r_bsp_gc9a01_t *gc9a01, const void *osd_fb, int osd_x0, int osd_y0, int osd_x1, int osd_y1); +// Send pre-rendered pixel data to a rectangular region of the display. +// Data must be w*h pixels in 16bpp RGB565 byteswapped format, packed +// contiguously (row-major, no stride gaps). +// Coordinates are clamped to display bounds. +esp_err_t flow3r_bsp_gc9a01_blit_rect(flow3r_bsp_gc9a01_t *gc9a01, + const void *data, + uint16_t x, uint16_t y, + uint16_t w, uint16_t h); + // Set backlight for display, using integer percent value (0-100, clamped). esp_err_t flow3r_bsp_gc9a01_backlight_set(flow3r_bsp_gc9a01_t *gc9a01, uint8_t value); -- 2.53.0