minui: add ARGB_8888 format

Minui currently really only supports composing in 2 different formats
(see gr_color()) with ALPHA always as MSB. However, some devices
interpret PixelFormat as either Big Endian (i.e. ARGB has alpha at MSB)
or Little Endian (i.e. BGRA has alpha at MSB).

This change attempts to give multiple options to specify the same format
depending on device interpretation, while keeping just 2 different
composition formats supported by minui.
* ARGB + BGRA: Pixels have (A)lpha at MSB and (B)lue at LSB
* RGBX + ABGR: Pixels have (A)lpha at MSB and (R)ed at LSB

With this in mind, limiting the use of png_set_bgr() to happen only for
(ARGB/BGRA) combination while leaving (RGBX/ABGR) unchanged.

Bug: 143480444
Test: Boot device with TARGET_RECOVERY_PIXEL_FORMAT := <<all>>
Change-Id: Ia0f94ccbc564b8def7c9416483712ff1abbbf49a
This commit is contained in:
Adrian Salido 2019-12-12 20:18:09 -08:00
parent 17090d7f53
commit cc7b7eb737
4 changed files with 11 additions and 4 deletions

View file

@ -209,7 +209,7 @@ void gr_texticon(int x, int y, const GRSurface* icon) {
void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a) {
uint32_t r32 = r, g32 = g, b32 = b, a32 = a;
if (pixel_format == PixelFormat::ABGR || pixel_format == PixelFormat::BGRA) {
if (pixel_format == PixelFormat::ARGB || pixel_format == PixelFormat::BGRA) {
gr_current = (a32 << 24) | (r32 << 16) | (g32 << 8) | b32;
} else {
gr_current = (a32 << 24) | (b32 << 16) | (g32 << 8) | r32;
@ -348,6 +348,8 @@ int gr_init() {
pixel_format = PixelFormat::ABGR;
} else if (format == "RGBX_8888") {
pixel_format = PixelFormat::RGBX;
} else if (format == "ARGB_8888") {
pixel_format = PixelFormat::ARGB;
} else if (format == "BGRA_8888") {
pixel_format = PixelFormat::BGRA;
} else {

View file

@ -62,6 +62,8 @@ static int drm_format_to_bpp(uint32_t format) {
case DRM_FORMAT_ABGR8888:
case DRM_FORMAT_BGRA8888:
case DRM_FORMAT_RGBX8888:
case DRM_FORMAT_RGBA8888:
case DRM_FORMAT_ARGB8888:
case DRM_FORMAT_BGRX8888:
case DRM_FORMAT_XBGR8888:
case DRM_FORMAT_XRGB8888:
@ -87,6 +89,8 @@ std::unique_ptr<GRSurfaceDrm> GRSurfaceDrm::Create(int drm_fd, int width, int he
format = DRM_FORMAT_ARGB8888;
} else if (pixel_format == PixelFormat::RGBX) {
format = DRM_FORMAT_XBGR8888;
} else if (pixel_format == PixelFormat::ARGB) {
format = DRM_FORMAT_BGRA8888;
} else {
format = DRM_FORMAT_RGB565;
}

View file

@ -101,6 +101,7 @@ enum class PixelFormat : int {
ABGR = 1,
RGBX = 2,
BGRA = 3,
ARGB = 4,
};
// Initializes the graphics backend and loads font file. Returns 0 on success, or -1 on error. Note

View file

@ -199,7 +199,7 @@ int res_create_display_surface(const char* name, GRSurface** pSurface) {
}
PixelFormat pixel_format = gr_pixel_format();
if (pixel_format == PixelFormat::ABGR || pixel_format == PixelFormat::BGRA) {
if (pixel_format == PixelFormat::ARGB || pixel_format == PixelFormat::BGRA) {
png_set_bgr(png_ptr);
}
@ -271,7 +271,7 @@ int res_create_multi_display_surface(const char* name, int* frames, int* fps,
surface[i] = created_surface.release();
}
if (gr_pixel_format() == PixelFormat::ABGR || gr_pixel_format() == PixelFormat::BGRA) {
if (gr_pixel_format() == PixelFormat::ARGB || gr_pixel_format() == PixelFormat::BGRA) {
png_set_bgr(png_ptr);
}
@ -317,7 +317,7 @@ int res_create_alpha_surface(const char* name, GRSurface** pSurface) {
}
PixelFormat pixel_format = gr_pixel_format();
if (pixel_format == PixelFormat::ABGR || pixel_format == PixelFormat::BGRA) {
if (pixel_format == PixelFormat::ARGB || pixel_format == PixelFormat::BGRA) {
png_set_bgr(png_ptr);
}