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-rw-r--r--payloads/libpayload/drivers/video/graphics.c24
-rw-r--r--payloads/libpayload/include/cbgfx.h14
2 files changed, 26 insertions, 12 deletions
diff --git a/payloads/libpayload/drivers/video/graphics.c b/payloads/libpayload/drivers/video/graphics.c
index d4eaa09997..49563267a9 100644
--- a/payloads/libpayload/drivers/video/graphics.c
+++ b/payloads/libpayload/drivers/video/graphics.c
@@ -106,7 +106,8 @@ static int within_box(const struct vector *v, const struct rect *bound)
return -1;
}
-static inline uint32_t calculate_color(const struct rgb_color *rgb)
+static inline uint32_t calculate_color(const struct rgb_color *rgb,
+ uint8_t invert)
{
uint32_t color = 0;
color |= (rgb->red >> (8 - fbinfo->red_mask_size))
@@ -115,6 +116,8 @@ static inline uint32_t calculate_color(const struct rgb_color *rgb)
<< fbinfo->green_mask_pos;
color |= (rgb->blue >> (8 - fbinfo->blue_mask_size))
<< fbinfo->blue_mask_pos;
+ if (invert)
+ color ^= 0xffffffff;
return color;
}
@@ -180,7 +183,7 @@ int draw_box(const struct rect *box, const struct rgb_color *rgb)
struct vector top_left;
struct vector size;
struct vector p, t;
- const uint32_t color = calculate_color(rgb);
+ const uint32_t color = calculate_color(rgb, 0);
const struct scale top_left_s = {
.x = { .n = box->offset.x, .d = CANVAS_SCALE, },
.y = { .n = box->offset.y, .d = CANVAS_SCALE, }
@@ -230,7 +233,7 @@ int clear_screen(const struct rgb_color *rgb)
return CBGFX_ERROR_INIT;
struct vector p;
- uint32_t color = calculate_color(rgb);
+ uint32_t color = calculate_color(rgb, 0);
const int bpp = fbinfo->bits_per_pixel;
const int bpl = fbinfo->bytes_per_line;
@@ -269,7 +272,8 @@ static int draw_bitmap_v3(const struct vector *top_left,
const struct vector *dim_org,
const struct bitmap_header_v3 *header,
const struct bitmap_palette_element_v3 *pal,
- const uint8_t *pixel_array)
+ const uint8_t *pixel_array,
+ uint8_t invert)
{
const int bpp = header->bits_per_pixel;
int32_t dir;
@@ -361,7 +365,7 @@ static int draw_bitmap_v3(const struct vector *top_left,
pal[c01].blue, pal[c11].blue,
&tx, &ty),
};
- set_pixel(&p, calculate_color(&rgb));
+ set_pixel(&p, calculate_color(&rgb, invert));
}
}
@@ -552,8 +556,8 @@ static int check_boundary(const struct vector *top_left,
}
int draw_bitmap(const void *bitmap, size_t size,
- const struct scale *pos_rel, uint8_t pivot,
- const struct scale *dim_rel)
+ const struct scale *pos_rel, const struct scale *dim_rel,
+ uint32_t flags)
{
struct bitmap_header_v3 header;
const struct bitmap_palette_element_v3 *palette;
@@ -561,6 +565,8 @@ int draw_bitmap(const void *bitmap, size_t size,
struct vector top_left, dim, dim_org;
struct scale scale;
int rv;
+ const uint8_t pivot = flags & PIVOT_MASK;
+ const uint8_t invert = (flags & INVERT_COLORS) >> INVERT_SHIFT;
if (cbgfx_init())
return CBGFX_ERROR_INIT;
@@ -594,7 +600,7 @@ int draw_bitmap(const void *bitmap, size_t size,
}
return draw_bitmap_v3(&top_left, &scale, &dim, &dim_org,
- &header, palette, pixel_array);
+ &header, palette, pixel_array, invert);
}
int draw_bitmap_direct(const void *bitmap, size_t size,
@@ -629,7 +635,7 @@ int draw_bitmap_direct(const void *bitmap, size_t size,
}
return draw_bitmap_v3(top_left, &scale, &dim, &dim,
- &header, palette, pixel_array);
+ &header, palette, pixel_array, 0);
}
int get_bitmap_dimension(const void *bitmap, size_t sz, struct scale *dim_rel)
diff --git a/payloads/libpayload/include/cbgfx.h b/payloads/libpayload/include/cbgfx.h
index dca1be0acd..cffc7fd7a6 100644
--- a/payloads/libpayload/include/cbgfx.h
+++ b/payloads/libpayload/include/cbgfx.h
@@ -130,11 +130,14 @@ int clear_screen(const struct rgb_color *rgb);
* @param[in] bitmap Pointer to the bitmap data, starting from file header
* @param[in] size Size of the bitmap data
* @param[in] pos_rel Coordinate of the pivot relative to the canvas
- * @param[in] pivot Pivot position. Use PIVOT_H_* and PIVOT_V_* flags.
* @param[in] dim_rel Width and height of the image relative to the canvas
* width and height. They must not exceed 1 (=100%). If one
* is zero, it's derived from the other to keep the aspect
* ratio.
+ * @param[in] flags lower 8 bits is Pivot position. Use PIVOT_H_* and
+ * PIVOT_V_* flags.
+ * Bit 9 is bit to indicate if we invert the rendering.
+ * 0 = render image as is, 1 = invert image.
*
* @return CBGFX_* error codes
*
@@ -143,8 +146,8 @@ int clear_screen(const struct rgb_color *rgb);
* positioned so that pos_rel matches the center of the image.
*/
int draw_bitmap(const void *bitmap, size_t size,
- const struct scale *pos_rel, uint8_t pivot,
- const struct scale *dim_rel);
+ const struct scale *pos_rel, const struct scale *dim_rel,
+ uint32_t flags);
/* Pivot flags. See the draw_bitmap description. */
#define PIVOT_H_LEFT (1 << 0)
@@ -153,6 +156,11 @@ int draw_bitmap(const void *bitmap, size_t size,
#define PIVOT_V_TOP (1 << 3)
#define PIVOT_V_CENTER (1 << 4)
#define PIVOT_V_BOTTOM (1 << 5)
+#define PIVOT_MASK 0x000000ff
+
+/* invert flag */
+#define INVERT_SHIFT 8
+#define INVERT_COLORS (1 << INVERT_SHIFT)
/**
* Draw a bitmap image at screen coordinate with no scaling