Image generating apparatus, image generating method, and computer readable medium

An image generating method, comprising,

• selecting a buffer to which an image of each area forming an entirety or a part of one frame is to be written from among first and second buffers each capable of storing an image of one frame, for each area of the entirety or the part of the one frame, respectively;
• writing an image of each area of the entirety or the part of the one frame to a selected buffer, respectively;
• selecting a buffer from which an image of each area forming an entirety of one frame is to be read out from among the first and second buffers, for each area of the entirety of the one frame respectively;
• and
• reading out at regular intervals an image in each area of the entirety of the one frame from the selected buffer to generate an image frame,
• wherein
• a first of the selecting selects an other buffer than a buffer to be read out in a certain frame reading period for each area to be written in the certain frame reading period, respectively and
• a second of selecting selects in the certain frame reading period
• a buffer to which writing was performed in an immediately preceding reading period for an area for which in the immediately preceding frame reading period, the writing was performed, and
• a same buffer as a buffer which was read in the immediately preceding reading period for an area for which in the immediately preceding frame reading period, the writing was not performed.

A computer readable medium storing a computer program for causing a computer to execute instructions to perform the steps of:

• selecting a buffer to which an image of each area forming an entirety or a part of one frame is to be written from among first and second buffers each capable of storing an image of one frame, for each area of the entirety or the part of the one frame, respectively;
• writing an image of each area of the entirety or the part of the one frame to a selected buffer, respectively;
• selecting a buffer from which an image of each area forming an entirety of one frame is to be read out from among the first and second buffers, for each area of the entirety of the one frame respectively;
• and
• reading out at regular intervals an image in each area of the entirety of the one frame from the selected buffer to generate an image frame,
• wherein
• a first of the selecting selects an other buffer than a buffer to be read out in a certain frame reading period for each area to be written in the certain frame reading period, respectively and
• a second of selecting selects in the certain frame reading period
• a buffer to which writing was performed in an immediately preceding reading period for an area for which in the immediately preceding frame reading period, the writing was performed, and
• a same buffer as a buffer which was read in the immediately preceding reading period for an area for which in the immediately preceding frame reading period, the writing was not performed.