Image display area shape setting method and device

Abstract

The invention discloses an image display area shape setting method and device. The method comprises steps that a texture area and a vertex coordinate of a to-be-displayed image area are acquired; a graphical program interface is called, and the vertex coordinate is inputted to a vertex shader of a graph processor GPU; a pixel shader corresponding to the vertex shader is acquired; pixel values of pixel points of a target image with the position belonging to the texture area are sampled, the pixel values are rendered through the pixel shader to the corresponding position of the texture area. The invention further discloses a shape setting device of the image display area. The method is advantaged in that the GPU can be utilized to generate the shape of the image display area, and a CPU utilization rate is reduced.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a method and device for setting the shape of an image display area. Background technique [0002] Generally, in mobile phone or computer client programs, the display area of ​​a window component is a right-angled rectangular area. The computer program can determine the display area of ​​a right-angled rectangle by defining the vertices or length and width of the rectangular area. However, in some application scenarios, In order to adapt to the theme style of the operating system or application page, such as figure 1 As shown, the video display area needs to be designed in the appearance of a rounded rectangle, and a common practice in the prior art is to use the CPU to trim the corners of the video frame. [0003] refer to figure 2 As shown, for the rounded corner area, it is necessary to generate n triangles in the rounded corner area first, and approach the rounded corner thr...

AI Technical Summary

Problems solved by technology

[0004] For this reason, in order to prevent jagged lines from appearing in the rounded corner area of ​​the rounded rectangle and achieve a better visual effect, the traditional technology usually needs to use the CPU Resources generate more triangles, which consumes a lot of CPU usage

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