diff options
| -rw-r--r-- | source/blender/windowmanager/intern/wm_splash_screen.c | 76 |
1 files changed, 71 insertions, 5 deletions
diff --git a/source/blender/windowmanager/intern/wm_splash_screen.c b/source/blender/windowmanager/intern/wm_splash_screen.c index 4cf6291c2e4..f953cc6707c 100644 --- a/source/blender/windowmanager/intern/wm_splash_screen.c +++ b/source/blender/windowmanager/intern/wm_splash_screen.c @@ -40,6 +40,7 @@ #include "DNA_windowmanager_types.h" #include "BLI_blenlib.h" +#include "BLI_math.h" #include "BLI_utildefines.h" #include "BKE_appdir.h" @@ -55,6 +56,7 @@ #include "ED_screen.h" #include "UI_interface.h" +#include "UI_resources.h" #include "WM_api.h" #include "WM_types.h" @@ -178,13 +180,65 @@ static void wm_block_splash_add_labels(uiBlock *block, int x, int y) #endif /* WITH_BUILDINFO */ } -static ImBuf *wm_block_splash_image(void) +static void wm_block_splash_image_roundcorners_add(ImBuf *ibuf) +{ + uchar *rct = (uchar *)ibuf->rect; + + if (rct) { + bTheme *btheme = UI_GetTheme(); + const float roundness = btheme->tui.wcol_menu_back.roundness * U.dpi_fac; + const int size = roundness * 20; + + if (size < ibuf->x && size < ibuf->y) { + /* Y-axis initial offset. */ + rct += 4 * (ibuf->y - size) * ibuf->x; + + for (int y = 0; y < size; y++) { + for (int x = 0; x < size; x++, rct += 4) { + const float pixel = 1.0 / size; + const float u = pixel * x; + const float v = pixel * y; + const float distance = sqrt(u * u + v * v); + + /* Pointer offset to the alpha value of pixel. */ + /* Note, the left corner is flipped in the X-axis. */ + const int offset_l = 4 * (size - x - x - 1) + 3; + const int offset_r = 4 * (ibuf->x - size) + 3; + + if (distance > 1.0) { + rct[offset_l] = 0; + rct[offset_r] = 0; + } + else { + /* Create a single pixel wide transition for anti-aliasing. + * Invert the distance and map its range [0, 1] to [0, pixel]. */ + const float fac = (1.0 - distance) * size; + + if (fac > 1.0) { + continue; + } + + const uchar alpha = unit_float_to_uchar_clamp(fac); + rct[offset_l] = alpha; + rct[offset_r] = alpha; + } + } + + /* X-axis offset to the next row. */ + rct += 4 * (ibuf->x - size); + } + } + } +} + +static ImBuf *wm_block_splash_image(int width, int *r_height) { #ifndef WITH_HEADLESS extern char datatoc_splash_png[]; extern int datatoc_splash_png_size; ImBuf *ibuf = NULL; + int height = 0; if (U.app_template[0] != '\0') { char splash_filepath[FILE_MAX]; @@ -202,6 +256,18 @@ static ImBuf *wm_block_splash_image(void) ibuf = IMB_ibImageFromMemory(splash_data, splash_data_size, IB_rect, NULL, "<splash screen>"); } + if (ibuf) { + height = (width * ibuf->y) / ibuf->x; + if (width != ibuf->x || height != ibuf->y) { + IMB_scaleImBuf(ibuf, width, height); + } + + wm_block_splash_image_roundcorners_add(ibuf); + IMB_premultiply_alpha(ibuf); + } + + *r_height = height; + return ibuf; #else UNUSED_VARS(r_unit_size); @@ -223,12 +289,12 @@ static uiBlock *wm_block_create_splash(bContext *C, ARegion *region, void *UNUSE UI_block_flag_enable(block, UI_BLOCK_LOOP | UI_BLOCK_KEEP_OPEN | UI_BLOCK_NO_WIN_CLIP); UI_block_theme_style_set(block, UI_BLOCK_THEME_STYLE_POPUP); + int splash_width = 500.0f * U.dpi_fac; + int splash_height; + /* Would be nice to support caching this, so it only has to be re-read (and likely resized) on * first draw or if the image changed. */ - ImBuf *ibuf = wm_block_splash_image(); - - float splash_width = 500.0f * U.dpi_fac; - float splash_height = (splash_width * ibuf->y) / ibuf->x; + ImBuf *ibuf = wm_block_splash_image(splash_width, &splash_height); but = uiDefButImage(block, ibuf, 0, 0.5f * U.widget_unit, splash_width, splash_height, NULL); |