Granted Patent B2

US 12,282,980 · App. 17/919,880 · Granted Apr 22, 2025

Inventor: Wei Fu (Xi'an, CN)

Assignee: HUAWEI TECHNOLOGIES CO., LTD.

G06T1/20H04N19/186H04N21/440218

Abstract

Claims (56)

1. A method, comprising:

obtaining a first picture file comprising a format field indicating a source format and comprising a control bit, a color format, and a data field comprising first pixel data;

identifying whether the source format supports a transparent channel;

rendering, in response to identifying that the source format supports a transparent channel, the first picture file on a display with a transparent effect; and

rendering, in response to identifying that the source format does not support a transparent channel, the first picture file on the display with no transparent effect.

2. The method of claim 1 , further comprising controlling transparency of the first picture file using the transparent channel.

3. The method of claim 1 , wherein before obtaining the first picture file, the method further comprises:

obtaining a source file of the first picture file; and

performing format conversion on the source file to obtain the first picture file.

4. The method of claim 3 , further comprising:

compressing the source file based on a preset compression algorithm;

filling, after compressing the source file, second pixel data into the data field when a compression ratio is greater than or equal to a threshold, wherein the compression ratio is of a first size of the source file before compressing to a second size of the source file after compressing; and

filling third pixel data into the data field of the first picture file when the compression ratio is less than the threshold, wherein the compression ratio is a ratio of a size of the source file of the first picture file before the compression to a size after the compression.

5. The method of claim 4 , wherein before rendering the first picture file, the method further comprises:

decompressing the data field based on a preset decompression algorithm when the data field is a compressed field, and filling fourth pixel data after decompressing into the data field; and

skipping changing the data field when the data field is not a compressed field.

6. The method of claim 1 , wherein the first picture file further comprises a transparent color field indicating a transparently displayed color area in the first picture file.

7. The method of claim 6 , further comprising:

identifying that the source format is a third format, and wherein

in response to identifying that the source format is the third format, rendering further comprises:

performing transparency processing on the first picture file based on the transparent color field and displaying the transparently displayed color area when the transparent color field is valid; and

displaying, the first picture file so that it blocks a second picture file when the transparent color field is not valid.

8. The method of claim 1 , further comprising:

obtaining configuration information of the display, wherein the configuration information comprises a size of the display and a display configuration of the display; and

further rendering, based on the configuration information, the first picture file.

9. The method of claim 8 , wherein the rendering comprises one or more of scaling, rotation, or transparent computing.

10. The method of claim 1 , wherein the first picture file further comprises a palette field indicating a mapping relationship between a pixel color of the first picture file and an index number, and wherein one index number represents one color.

11. An electronic device comprising:

a display; and

a processor coupled to the display and configured to:

obtain a first picture file comprising a format field indicating a source format and comprising a control bit, a color format, and a data field comprising first pixel data;

identify whether the source format supports a transparent channel;

render, in response to identifying that the source format supports a transparent channel, the first picture file on the display with a transparent effect; and

render, in response to identifying that the source format does not support a transparent channel, the first picture file on the display with no transparent effect.

12. The electronic device of claim 11 , wherein rendering further comprises controlling transparency of the first picture file using the transparent channel, when the source format supports the transparent channel.

13. The electronic device of claim 11 , wherein before obtaining the first picture file, the processor is further configured to:

obtain a source file of the first picture file; and

perform format conversion on the source file to obtain the first picture file.

14. The electronic device of claim 13 , wherein the processor is further configured to:

compress the source file based on a preset compression algorithm;

fill second pixel data after compressing into the data field when a compression ratio is greater than or equal to a threshold, wherein the compression ratio is of a first size of the source file before compressing to a second size of the source file after compressing; and

fill third pixel data into the data field of the first picture file when the compression ratio is less than the threshold, wherein the compression ratio is a ratio of a size of the source file of the first picture file before the compression to a size after the compression.

15. The electronic device of claim 14 , wherein before rendering the first picture file, the processor is further configured to:

decompress the data field based on a preset decompression algorithm when the data field is a compressed field, and fill fourth pixel data after decompressing into the data field; and

skip changing the data field when the data field is not a compressed field.

16. The electronic device of claim 11 , wherein the first picture file further comprises a transparent color field indicating a transparently displayed color area in the first picture file.

17. The electronic device of claim 16 , wherein the processor is further configured to:

identify that the source format is a third format; and

in response to identifying that the source format is the third format, the rendering further comprises:

performing transparency processing on the first picture file based on the transparent color field and displaying the transparently displayed color area when the transparent color field is valid; and

displaying the first picture file so that it blocks a second picture file when the transparent color field is not valid.

18. The electronic device of claim 11 , wherein the processor is further configured to:

obtain configuration information comprising a size of the display and a display configuration of the display; and

further render, based on the configuration information, the first picture file.

19. The electronic device of claim 18 , wherein the rendering comprises one or more of scaling, rotation, or transparent computing.

20. The electronic device of claim 11 , wherein the first picture file further comprises a palette field indicating a mapping relationship between a pixel color of the first picture file and an index number, and wherein one index number represents one color.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (21)