WO2013124894A1 - Dispositif de commande de reproduction et programme de commande de reproduction - Google Patents

Dispositif de commande de reproduction et programme de commande de reproduction Download PDF

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Publication number
WO2013124894A1
WO2013124894A1 PCT/JP2012/001206 JP2012001206W WO2013124894A1 WO 2013124894 A1 WO2013124894 A1 WO 2013124894A1 JP 2012001206 W JP2012001206 W JP 2012001206W WO 2013124894 A1 WO2013124894 A1 WO 2013124894A1
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Prior art keywords
pixel
value
scissor
allowable range
target
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PCT/JP2012/001206
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English (en)
Japanese (ja)
Inventor
雅樹 濱田
加藤　義幸
鳥居　晃
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2014500561A priority Critical patent/JP5885827B2/ja
Priority to PCT/JP2012/001206 priority patent/WO2013124894A1/fr
Priority to TW101121489A priority patent/TW201335883A/zh
Publication of WO2013124894A1 publication Critical patent/WO2013124894A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/60—Editing figures and text; Combining figures or text

Definitions

  • the present invention relates to a drawing control apparatus and a drawing control program for drawing a figure in a plurality of scissor areas.
  • a drawing allowable range defined by the maximum value and the minimum value is set for each scissor area, and is included in the figure to determine whether or not to write a pixel to the scissor area.
  • a comparator for determining whether or not the coordinate value of the pixel to be included is included in the drawing allowable range of the scissor area is provided for each scissor area.
  • JP-T 2010-510608 (paragraphs [0005] to [0007])
  • the conventional drawing control apparatus is configured as described above, when a part of the scissor area is not used, the comparator of the scissor area is not used. However, an unused comparator is used for other purposes (for example, whether or not the color value or alpha value (transparency) of a pixel included in the figure is included in the drawing allowable range of the scissor area). Therefore, there is a problem that resources cannot be used effectively and resources cannot be effectively used.
  • the present invention has been made to solve the above-described problems, and provides a drawing control apparatus and a drawing control program capable of using resources in the apparatus for various purposes and effectively utilizing the resources.
  • the purpose is to obtain.
  • the drawing control apparatus includes a coordinate value / pixel value calculating unit for calculating a pixel coordinate value and a pixel value included in the figure according to setting information of the figure to be drawn in a plurality of scissor areas, Maximum value / minimum value storage means for storing the maximum value and minimum value for defining the scissor area drawing allowable range, and the coordinate value or pixel value of the pixel included in the figure calculated by the coordinate value / pixel value calculation means Is set as a comparison target value, and for each pixel included in the figure, each scissor area in which the comparison target value of the pixel is defined from the maximum value and the minimum value stored by the maximum value / minimum value storage means Based on the determination result of the drawing allowable range determining means for determining whether or not it is included in the drawing allowable range and the determination result of the drawing allowable range determining means, from among the pixels included in the figure, the drawing target Identify pixels
  • the drawing target pixel discriminating means, and the frame buffer updating means determines the
  • the coordinate value or pixel value of the pixel included in the figure calculated by the coordinate value / pixel value calculating means is set as the comparison target value, and for each pixel included in the figure, the pixel A drawing allowable range determination for determining whether or not the comparison target value is included in the drawing allowable range of each scissor area defined from the maximum value and the minimum value stored by the maximum value / minimum value storage means.
  • a drawing target pixel discriminating unit that discriminates a drawing target pixel from the pixels included in the figure based on the determination result of the drawing allowable range determining unit.
  • the drawing allowable range determining means is set to compare the target value even pixel values. Therefore, there is an effect that the resources can be effectively used.
  • FIG. 1 It is a block diagram which shows the drawing control apparatus by Embodiment 1 of this invention. It is a flowchart which shows the processing content of the drawing control apparatus by Embodiment 1 of this invention. It is explanatory drawing which shows an example of the figure of drawing object. It is explanatory drawing which shows an example of the pixel of drawing object. It is explanatory drawing which shows the case where an icon is expanded with a bilinear filter.
  • FIG. 1 is a block diagram showing a drawing control apparatus according to Embodiment 1 of the present invention.
  • a CPU Central Processing Unit
  • FIG. 1 a CPU 1 is connected to a drawing control device 2 via a CPU bus 3, and when drawing of a figure to a plurality of scissor areas is started, the setting information of the figure (for example, Then, a process of outputting a drawing command including the coordinates of the figure (for example, the coordinates of the vertex of the figure) and information indicating the drawing color to the drawing control apparatus 2 is performed.
  • the CPU 1 when the CPU 1 outputs a drawing command to the drawing control device 2, the maximum / minimum information indicating the maximum value and the minimum value that define the drawing allowable range of each scissor area, the setting flag of each scissor area (use of the scissor area) A flag indicating whether or not each scissor area is judged (a flag indicating whether the inside of the scissor area is “valid” or “external is valid”), and a setting mode for specifying the comparison target data ( A process of outputting the selection information) to the drawing control apparatus 2 is performed. Note that the CPU 1 may output these flags and information by including them in a drawing command.
  • the drawing processing unit 11 of the drawing control device 2 is composed of, for example, a semiconductor integrated circuit on which an MPU (Micro Processing Unit) is mounted or a one-chip microcomputer, and is included in the drawing command output from the CPU 1.
  • MPU Micro Processing Unit
  • the drawing processing unit 11 constitutes coordinate value / pixel value calculation means.
  • the drawing target pixel discriminating unit 12 performs processing for discriminating a drawing target pixel from among pixels included in the figure based on the coordinate value (x, y), the color value and the like calculated by the drawing processing unit 11. carry out.
  • the maximum / minimum value setting register 13 of the drawing target pixel discriminating unit 12 is prepared for each scissor area, and is a memory for storing the maximum value and the minimum value indicated by the maximum / minimum information output from the CPU 1.
  • the maximum value / minimum value setting register 13 constitutes maximum value / minimum value storage means.
  • the setting flag register 14 is prepared for each scissor area, and is a memory for storing a setting flag for the scissor area output from the CPU 1.
  • the condition determination flag register 15 is prepared for each scissor area, and is a memory for storing a condition determination flag for the scissor area output from the CPU 1.
  • the comparator 16 is prepared for each scissor area and includes a selector 16a and a comparison processing unit 16b. If the setting mode output from the CPU 1 indicates that the coordinate value is selected as the comparison target value of the scissor area, the selector 16a of the comparator 16 indicates the coordinate value (x, If y) is set as a comparison target value and output to the comparison processing unit 16b to indicate that a color value is selected as the comparison target value of the scissor area, the color value calculated by the drawing processing unit 11 is used. If the comparison target value is set and output to the comparison processing unit 16b and indicates that the ⁇ value is selected as the comparison target value of the scissor area, the ⁇ value calculated by the drawing processing unit 11 is used as the comparison target value.
  • the comparison processing unit 16b To output to the comparison processing unit 16b. For each pixel included in the figure to be drawn, the comparison processing unit 16b draws the scissor area in which the comparison target value of the pixel is defined by the maximum value and the minimum value stored in the maximum value / minimum value setting register 13. A process of determining whether or not it is within the allowable range is performed.
  • the comparator 16 constitutes a drawing allowable range determining means.
  • the drawing target pixel discrimination processing unit 17 is composed of, for example, a semiconductor integrated circuit in which an MPU is mounted, a one-chip microcomputer, or the like. Based on the determination result of the comparator 16, the pixel to be included in the figure is determined. From this, a process of discriminating a pixel to be drawn is performed. For example, the setting flag stored in the setting flag register 14 indicates that all scissor areas are used, and the condition determination flag stored in the condition determination flag register 15 indicates that all scissor areas In the case where “effective” is indicated, the pixel determined by the comparator 16 that the comparison target value is included in the drawing allowable range of all scissor areas among the pixels included in the figure. And the pixel is determined to be a pixel to be drawn.
  • condition determination flags stored by the condition determination flag register 15 indicate that all scissor areas are “internally valid”, the setting flags stored by the setting flag register 14 are not If the area indicates that the area is not used, the comparator 16 identifies a pixel for which the comparison target value is determined to be included in the drawing allowable range of all scissor areas except the unused scissor area. The pixel is determined to be a pixel to be drawn.
  • the condition determination flag stored by the condition determination flag register 15 indicates that the scissor area “internally valid” and the scissor area “externally valid” are mixed
  • the comparator With reference to the determination result of 16, for the scissor area where “inside is valid”, the condition that the comparison target value is included in the drawing allowable range is satisfied, and “outside area” is valid.
  • a pixel that satisfies the condition that the comparison target value is not included in the drawing allowable range is specified, and the pixel is determined to be the drawing target pixel.
  • the drawing target pixel discrimination processing unit 17 constitutes a drawing target pixel discrimination means.
  • the memory control unit 18 is composed of, for example, a semiconductor integrated circuit in which an MPU is mounted, a one-chip microcomputer, or the like.
  • the memory control unit 18 constitutes a frame buffer update unit.
  • the drawing processing unit 11 the maximum value / minimum value setting register 13, the setting flag register 14, the condition determination flag register 15, the comparator 16, and the drawing target pixel determination processing unit 17 that are components of the drawing control apparatus. It is assumed that each of the memory control unit 18 and the memory control unit 18 is configured by dedicated hardware. However, the drawing control apparatus executes a drawing control program described later in addition to a computer (for example, in addition to a personal computer. Mobile phones, portable information terminals, car navigation devices, and the like are also included.
  • FIG. 2 is a flowchart showing the processing contents of the drawing control apparatus according to Embodiment 1 of the present invention.
  • the graphic setting information includes, for example, information indicating the coordinates of the graphic (for example, the coordinates of the vertex of the graphic) and the drawing color.
  • the figure to be drawn is a triangle
  • the coordinates of the three vertices of the triangle are included in the setting information
  • the color information, ⁇ value (transparency), etc. are included in the setting information as the drawing color of the three vertices It is.
  • the maximum / minimum information of each scissor area, each scissor area setting flag, each scissor area condition determination flag, and each scissor area setting mode. are output to the drawing control apparatus 2.
  • the maximum / minimum information is information indicating the maximum value and the minimum value of the drawing allowable range in the scissor area. If the drawing allowable range is related to the coordinate value, the drawing allowable range is, for example, the value x of the X coordinate. Is within the range of x1 ⁇ x ⁇ x2 and the Y coordinate value y is within the range of y1 ⁇ y ⁇ y2.
  • the drawing allowable range is a range for drawing only pixels whose pixel value c is in the range of c1 ⁇ c ⁇ c2, for example.
  • x1, y1, c1, etc. are the minimum values of the drawing allowable range
  • x2, y2, c2, etc. are the maximum values of the drawing allowable range.
  • the drawing allowable range may be set for each scissor area
  • the drawing allowable range related to the coordinate value may be set for a certain scissor area
  • the drawing allowable range related to the pixel value may be set for a certain scissor area.
  • a similar drawing allowable range (for example, a drawing allowable range related to coordinate values) may be set for all scissor areas.
  • the scissor area setting flag is a flag indicating whether or not the scissor area is used.
  • the scissor area indicating that this flag is “not used” is not handled as a scissor area. For example, when there are N scissor areas, N-2 scissor area setting flags indicate “use”, and the remaining two scissor area setting flags indicate “not used”. Thus, the remaining two scissor areas are not handled as scissor areas, and a graphic drawing process is performed on the N-2 scissor areas.
  • the scissor area condition determination flag is a flag indicating whether “inside is valid” or “outside is valid” of the scissor area. For a scissor area where “inside is valid”, the scissor area For the scissor area in which drawing of the figure is permitted and “external is valid”, drawing of the figure is permitted to the outside of the scissor area.
  • the setting mode is selection information indicating whether the selector 16a of the comparator 16 selects a coordinate value, a color value, or an ⁇ value as comparison target data.
  • a setting mode indicating that the coordinate value is selected is given as comparison target data, and for the scissor area where the maximum value and minimum value of the drawing allowable range regarding the color value are set.
  • a setting mode indicating that a color value is selected is given as comparison target data.
  • the maximum value and the minimum value of the drawing allowable range in the scissor area indicated by the maximum / minimum information output from the CPU 1 are stored in the maximum value / minimum value setting register 13 prepared for each scissor area.
  • the scissor area setting flag output from the CPU 1 is stored in a setting flag register 14 prepared for each scissor area.
  • the scissor area condition determination flag output from the CPU 1 is stored in a condition determination flag register 15 prepared for each scissor area.
  • the drawing processing unit 11 When the drawing processing unit 11 receives a drawing command from the CPU 1 (step ST1 in FIG. 2), according to the setting information of the graphic contained in the drawing command, the coordinate values (x, y) and pixel values such as color values and ⁇ values (transparency) are calculated (step ST2). For example, if the figure to be drawn is a triangle, as shown in FIG. 3, the coordinates (x1, y1), (x2, y2), (x3, y3) of the three vertices P1, P2, and P3 of the triangle are the figures. Therefore, using these coordinates, line segments L1, L2, and L3 connecting the vertices are obtained, and an area (triangle) surrounded by the three line segments L1, L2, and L3 is obtained.
  • the coordinate value (x, y) of each pixel included in the inside of the triangle is calculated.
  • the line segment L1 can be obtained by substituting the coordinates (x1, y1) and (x2, y2) of the vertices P1, P2 into the simultaneous equations shown below.
  • y1 a ⁇ x1 + b
  • y2 a ⁇ x2 + b
  • a is the slope of the line segment L1
  • b is a constant.
  • the color values of the three vertices P1, P2, and P3 of the triangle are included in the figure setting information.
  • an intermediate value between the color value of the vertex P1 and the color value of the vertex P2 is calculated as the color value of the pixel.
  • the vertex P1 to the vertex P2 are calculated in consideration of the distance so that the color value and the like gradually change (gradation).
  • the drawing target pixel determination unit 12 calculates the pixel coordinate value (x, y) and color. Based on the value or the like, the drawing target pixel is determined from the pixels included in the figure. Specifically, it is as follows.
  • the drawing target pixel determination unit 12 uses only the comparator 16 corresponding to the “use” scissor area among the comparators 16 prepared for each scissor area, and performs the comparison corresponding to the “not used” scissor area.
  • each scissor area is referred to by referring to a setting flag (setting flag for the scissor area output from the CPU 1) stored in the setting flag register 14 corresponding to each scissor area. It is determined whether or not the scissor area is “used” (step ST3).
  • the drawing target pixel determination unit 12 activates the comparator 16 corresponding to the scissor area (step ST4).
  • the selector 16a of the activated comparator 16 draws the drawing calculated by the drawing processing unit 11.
  • the coordinate value (x, y) of the pixel included in the target graphic is set as the comparison target value, and the comparison target value is output to the comparison processing unit 16b (step ST5).
  • the selector 16a is included in the drawing target figure calculated by the drawing processing unit 11.
  • the comparison target value is output to the comparison processing unit 16b, and the ⁇ value is selected as the comparison target value of the scissor area, the drawing process
  • the ⁇ value of the pixel included in the drawing target graphic calculated by the unit 11 is set as a comparison target value, and the comparison target value is output to the comparison processing unit 16b (step ST5).
  • the comparison processing unit 16b of the activated comparator 16 receives the comparison target value from the selector 16a, the comparison processing unit 16b acquires the maximum value and the minimum value stored in the maximum value / minimum value setting register 13, and in the scissor area. Specify the allowable drawing range. When the drawing allowable range in the scissor area is specified, the comparison processing unit 16b determines whether the comparison target value of the pixel is included in the drawing allowable range for each pixel included in the figure to be drawn. (Step ST6).
  • the drawing target pixel determination processing unit 17 determines whether the comparison target value of the pixel is included in the drawing allowable range for each pixel included in the figure.
  • the drawing target pixel determination processing unit 17 displays the determination result. Based on the pixel included in the figure, the drawing target pixel is determined. That is, the drawing target pixel determination processing unit 17 sets each scissor region condition determination flag (stored in the condition determination flag register 15) for pixels for which the comparison target value is determined to be included in the drawing allowable range. Referring to the scissor area condition determination flag corresponding to the “use” scissor area, it is determined whether each scissor area is a scissor area of “internally valid” (step ST7).
  • the drawing target pixel discrimination processing unit 17 sets the scissor area “inside is valid” to “pass area” (step ST8), and sets the scissor area “inside is valid” to “fail area” (step ST8). ST9).
  • the drawing target pixel determination processing unit 17 sets each scissor region condition determination flag (stored in the condition determination flag register 15) for pixels for which it is determined that the comparison target value is not included in the drawing allowable range. With reference to the scissor area condition determination flag corresponding to the “used” scissor area, it is determined whether each scissor area is a scissor area of “external valid” (step ST10). Then, the drawing target pixel discrimination processing unit 17 sets the “externally valid” scissor area to the “Pass area” (step ST8), and sets the “internally valid” scissor area to the “Fail area” (step ST8). ST9). Note that the scissor area whose setting flag stored in the setting flag register 14 indicates “not used” is not handled as a scissor area as described above, and therefore this scissor area is set as a “Pass area”. Set.
  • the drawing target pixel discrimination processing unit 17 determines, for each pixel included in the figure, whether or not all scissor areas for the pixel are “pass areas” (step ST11). If it is “Pass region”, it is determined that the pixel is a pixel to be drawn (step ST12). On the other hand, if any one of the scissor areas for the pixel is a “Fail area”, it is determined that the pixel is not a pixel to be rendered (step ST13).
  • steps ST5 to ST13 are performed for each pixel, and if there remains a pixel for which it is not yet determined whether or not it is a drawing target pixel, the processing returns to step ST5, and step ST5. To ST13 are repeated (step ST14). When it is determined whether all the pixels included in the drawing target graphic are the drawing target pixels, the process proceeds to step ST15.
  • FIG. 4 is an explanatory diagram illustrating an example of a drawing target pixel.
  • FIG. 4A shows an example in which there are three scissor areas A, B, and C whose “inside is valid”. Therefore, only the pixels included in all three scissor areas A, B, and C among the pixels in the triangle that is the drawing target graphic are set as the drawing target pixels. For example, the scissor area Pixels that are included in A and C but not included in the scissor area B are not set as drawing target pixels.
  • the scissor areas A and B are “internally valid”, but the scissor area C is “externally valid”. For this reason, only the pixels included in the scissor areas A and B and not included in the scissor area C among the pixels in the triangle that is the drawing target graphic are set as the drawing target pixels.
  • the memory control unit 18 determines the pixel value (color value, ⁇ value, etc.) of the pixel included in the drawing target graphic calculated by the drawing processing unit 11. Among these, a process of writing only the pixel value of the drawing target pixel into the frame buffer 19 is performed (step ST15).
  • the coordinate value or pixel value (color value, ⁇ value, etc.) of the pixel included in the figure calculated by the drawing processing unit 11 is used as the comparison target value.
  • the comparison target value of the pixel is within the drawing allowable range of each scissor area defined by the maximum value and the minimum value stored by the maximum value / minimum value setting register 13.
  • a drawing target pixel discrimination processing unit 17 for discriminating a drawing target pixel from among pixels included in the figure based on the judgment result of the comparator 16.
  • the memory control unit 18 frames only the pixel value of the drawing target pixel among the pixel values (color value, ⁇ value, etc.) of the pixel included in the drawing target figure calculated by the drawing processing unit 11. Write to buffer 19 Thus, not only the coordinate value calculated by the rendering processing unit 11 but also the pixel value (color value, ⁇ value, etc.) can be set as the comparison target value, and the comparator 16 can be used. Therefore, there is an effect that the resources can be effectively used.
  • the comparator 16 prepared for each scissor area is composed of a selector 16a and a comparison processing unit 16b, and the coordinate values and color values calculated by the drawing processing unit 11 in accordance with the setting mode output from the CPU 1. Since the comparison target value is selected from the value, ⁇ value, etc., when performing general scissor processing using the coordinate value as the comparison target value, the maximum value / minimum value of the coordinate value is maximized.
  • the coordinate value stored in the value / minimum value setting register 13 and selected by the selector 16a may be selected.
  • a maximum value / minimum value such as a color value or an ⁇ value is stored in the maximum value / minimum value setting register 13 so that the selector 16a selects a color value, an ⁇ value, or the like calculated by the drawing processing unit 11.
  • a general scissor process but also a scissor process using a color value, an ⁇ value or the like as a comparison target value can be performed. Therefore, since the comparator 16 can be used for other than general scissor processing, it is possible to effectively use resources.
  • any component of the embodiment can be modified or any component of the embodiment can be omitted within the scope of the invention.
  • the drawing control apparatus according to the present invention can be applied to, for example, a control panel for consumer and industrial equipment.

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Abstract

L'invention concerne : un comparateur (16) qui emploie les valeurs de coordonnées ou les valeurs de pixel (valeur de couleur, valeur α ou autre) de pixels contenus dans une figure calculée par une section de traitement de reproduction (11) comme valeurs à soumettre à un traitement de comparaison, et détermine, pour chacun des pixels contenus dans la figure, si oui ou non les valeurs des pixels qui doivent être soumis au traitement de comparaison sont contenues dans une plage de reproduction autorisée des régions de ciseaux respectives, définies à partir des valeurs maximum et des valeurs minimum stockées par un registre de définition de valeurs maximum/valeurs minimum (13) ; et une section de traitement de distinction des pixels à reproduire (17) servant à identifier les pixels qui doivent être soumis à un traitement de reproduction et à distinguer les pixels qui doivent être reproduits des pixels contenus dans la figure, d'après les résultats de la détermination effectuée par le comparateur (16).
PCT/JP2012/001206 2012-02-22 2012-02-22 Dispositif de commande de reproduction et programme de commande de reproduction WO2013124894A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2014500561A JP5885827B2 (ja) 2012-02-22 2012-02-22 描画制御装置及び描画制御プログラム
PCT/JP2012/001206 WO2013124894A1 (fr) 2012-02-22 2012-02-22 Dispositif de commande de reproduction et programme de commande de reproduction
TW101121489A TW201335883A (zh) 2012-02-22 2012-06-15 描繪控制裝置及描繪控制程式

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PCT/JP2012/001206 WO2013124894A1 (fr) 2012-02-22 2012-02-22 Dispositif de commande de reproduction et programme de commande de reproduction

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WO2013124894A1 true WO2013124894A1 (fr) 2013-08-29

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006164078A (ja) * 2004-12-09 2006-06-22 Minoru Takayama 描画方法及びその装置
JP2010510608A (ja) * 2006-11-21 2010-04-02 クゥアルコム・インコーポレイテッド グラフィックスアプリケーションのための効率的なシザリング

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006164078A (ja) * 2004-12-09 2006-06-22 Minoru Takayama 描画方法及びその装置
JP2010510608A (ja) * 2006-11-21 2010-04-02 クゥアルコム・インコーポレイテッド グラフィックスアプリケーションのための効率的なシザリング

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