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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" role="article" aria-labelledby="ariaid-title1"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/ge/ge_data_structure_lite.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">数据结构设计</h1><div class="date inPage">15 Jan 2024</div><div style="color: gray;">
|
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Read time: 7 minute(s)
|
||
</div><div class="- topic/body concept/conbody body conbody"><p class="- topic/p p" data-ofbid="d344763e26__20250121172118">GE 模块数据结构如下：</p><ul class="- topic/ul ul" id="ge-data-structure-lite__ul_qnj_qyr_ndc" data-ofbid="ge-data-structure-lite__ul_qnj_qyr_ndc"><li class="- topic/li li" data-ofbid="d344763e29__20250121172118">
|
||
<div class="- topic/div div section" id="ge-data-structure-lite__enum-ge-pd-rules"><strong class="+ topic/ph hi-d/b ph b">enum ge_pd_rules</strong>
|
||
<div class="- topic/p p" data-ofbid="d344763e35__20250121172118">Porter/Duff alpha
|
||
混合规则枚举<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge-data-structure-lite__codeblock_jdw_yvy_2dc" data-ofbid="ge-data-structure-lite__codeblock_jdw_yvy_2dc"><em class="hl-comment">/*
|
||
* enum ge_pd_mode - graphics engine Porter/Duff alpha blending rules
|
||
*
|
||
* pixel = (source * fs + destination * fd)
|
||
* sa = source alpha
|
||
* da = destination alpha
|
||
*
|
||
* @GE_PD_NONE: fs: sa fd: 1.0-sa (defaults)
|
||
* @GE_PD_CLEAR: fs: 0.0 fd: 0.0
|
||
* @GE_PD_SRC: fs: 1.0 fd: 0.0
|
||
* @GE_PD_SRC_OVER: fs: 1.0 fd: 1.0-sa
|
||
* @GE_PD_DST_OVER: fs: 1.0-da fd: 1.0
|
||
* @GE_PD_SRC_IN: fs: da fd: 0.0
|
||
* @GE_PD_DST_IN: fs: 0.0 fd: sa
|
||
* @GE_PD_SRC_OUT: fs: 1.0-da fd: 0.0
|
||
* @GE_PD_DST_OUT: fs: 0.0 fd: 1.0-sa
|
||
* @GE_PD_SRC_ATOP: fs: da fd: 1.0-sa
|
||
* @GE_PD_DST_ATOP: fs: 1.0-da fd: sa
|
||
* @GE_PD_ADD: fs: 1.0 fd: 1.0
|
||
* @GE_PD_XOR: fs: 1.0-da fd: 1.0-sa
|
||
* @GE_PD_DST: fs: 0.0 fd: 1.0
|
||
*/</em>
|
||
<strong class="hl-keyword">enum</strong> ge_pd_rules {
|
||
GE_PD_NONE = <span class="hl-number">0</span>,
|
||
GE_PD_CLEAR = <span class="hl-number">1</span>,
|
||
GE_PD_SRC = <span class="hl-number">2</span>,
|
||
GE_PD_SRC_OVER = <span class="hl-number">3</span>,
|
||
GE_PD_DST_OVER = <span class="hl-number">4</span>,
|
||
GE_PD_SRC_IN = <span class="hl-number">5</span>,
|
||
GE_PD_DST_IN = <span class="hl-number">6</span>,
|
||
GE_PD_SRC_OUT = <span class="hl-number">7</span>,
|
||
GE_PD_DST_OUT = <span class="hl-number">8</span>,
|
||
GE_PD_SRC_ATOP = <span class="hl-number">9</span>,
|
||
GE_PD_DST_ATOP = <span class="hl-number">10</span>,
|
||
GE_PD_ADD = <span class="hl-number">11</span>,
|
||
GE_PD_XOR = <span class="hl-number">12</span>,
|
||
GE_PD_DST = <span class="hl-number">13</span>,
|
||
};</pre></div></div>
|
||
</li><li class="- topic/li li" data-ofbid="d344763e40__20250121172118">
|
||
<div class="- topic/div div section" id="ge-data-structure-lite__struct-ge-ctrl">
|
||
<strong class="+ topic/ph hi-d/b ph b">struct ge_ctrl</strong>
|
||
<div class="- topic/p p" data-ofbid="d344763e47__20250121172118">GE
|
||
控制结构体<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge-data-structure-lite__codeblock_vxj_zvy_2dc" data-ofbid="ge-data-structure-lite__codeblock_vxj_zvy_2dc"><span class="hl-tag-doctype-comment">/**
|
||
* struct ge_ctrl - ge ctrl functions
|
||
* @alpha_en
|
||
* 0: enable Porter/Duff alpha blending
|
||
* 1: disable Porter/Duff alpha blending
|
||
* @alpha_rules: Porter/Duff alpha blending rules
|
||
* @src_alpha_mode: source alpha mode
|
||
* 0: pixel alpha mode(src_alpha = src_pixel_alpha)
|
||
* 1: global alpha mode(src_alpha = src_global_alpha)
|
||
* 2: mixded alpha mode(src_alpha = src_pixel_alpha * src_global_alpha / 255)
|
||
* @src_global_alpha: source global alpha value (0~255)
|
||
* used by global alpha mode and mixded alpha mode
|
||
* @dst_alpha_mode: destination alpha mode
|
||
* 0: pixel alpha mode(dst_alpha = dst_pixel_alpha)
|
||
* 1: global alpha mode(dst_alpha = dst_global_alpha)
|
||
* 2: mixded alpha mode(dst_alpha = dst_pixel_alpha * dst_global_alpha / 255)
|
||
* @dst_global_alpha: destination global alpha value (0~255)
|
||
* used by global alpha mode and mixed alpha mode
|
||
* @ck_en
|
||
* 0: disable color key
|
||
* 1: enable color key
|
||
* @ck_value: rgb value of color key to match the source pixels
|
||
* bit[31:24]: reserved
|
||
* bit[23:16]: R value
|
||
* bit[15:8]: G value
|
||
* bit[7:0]: B value
|
||
* @dither_en(Not supported by IOC_GE_ROTATE)
|
||
* 0: disable dither
|
||
* 1: enable dither
|
||
* @flags: the flags of some functions, such as scan order, src H/V flip
|
||
* and src 90/180/270 degree rotation, the H flip, V flip
|
||
* and rotation can be enabled at the same time, the effect
|
||
* of flip is in front of rotation, only supported by IOC_GE_BITBLT
|
||
* the flags was defined in mpp_types.h
|
||
*/</span>
|
||
<strong class="hl-keyword">struct</strong> ge_ctrl {
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> alpha_en;
|
||
<strong class="hl-keyword">enum</strong> ge_pd_rules alpha_rules;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> src_alpha_mode;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> src_global_alpha;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> dst_alpha_mode;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> dst_global_alpha;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> ck_en;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> ck_value;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> dither_en;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> flags;
|
||
};</pre></div></div>
|
||
</li><li class="- topic/li li" data-ofbid="d344763e52__20250121172118">
|
||
<div class="- topic/div div section" id="ge-data-structure-lite__enum-ge-fillrect-type">
|
||
<strong class="+ topic/ph hi-d/b ph b">enum ge_fillrect_type</strong>
|
||
<div class="- topic/p p" data-ofbid="d344763e59__20250121172118">颜色填充类型枚举<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge-data-structure-lite__codeblock_ffq_zvy_2dc" data-ofbid="ge-data-structure-lite__codeblock_ffq_zvy_2dc"><em class="hl-comment">/*
|
||
* enum ge_fillrect_type - the ge fill rectangle types:
|
||
*
|
||
* GE_NO_GRADIENT: No gradient is used, only use start_color to
|
||
* fill rectangle, ignore end_color
|
||
* GE_H_LINEAR_GRADIENT: Interpolates colors between start_color
|
||
* and end_color in the horizontal direction
|
||
* form left to right
|
||
* GE_V_LINEAR_GRADIENT: Interpolates colors between start_color and
|
||
* end_color in the vertical direction from top to
|
||
* buttom
|
||
*/</em>
|
||
<strong class="hl-keyword">enum</strong> ge_fillrect_type {
|
||
GE_NO_GRADIENT = <span class="hl-number">0</span>,
|
||
GE_H_LINEAR_GRADIENT = <span class="hl-number">1</span>,
|
||
GE_V_LINEAR_GRADIENT = <span class="hl-number">2</span>,
|
||
};</pre></div></div>
|
||
</li><li class="- topic/li li" data-ofbid="d344763e64__20250121172118">
|
||
<div class="- topic/div div section" id="ge-data-structure-lite__struct-ge-fillrect">
|
||
<strong class="+ topic/ph hi-d/b ph b">struct ge_fillrect</strong>
|
||
<div class="- topic/p p" data-ofbid="d344763e71__20250121172118">矩形填充结构体<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge-data-structure-lite__codeblock_lpz_zvy_2dc" data-ofbid="ge-data-structure-lite__codeblock_lpz_zvy_2dc"><span class="hl-tag-doctype-comment">/**
|
||
* struct ge_fillrect - ge fill rectangle
|
||
* @type: fill rect type
|
||
* @start_color: start color(32 bits)
|
||
* bit[31:24] alpha value
|
||
* bit[23:16] r value
|
||
* bit[15:8] g value
|
||
* bit[7:0] b value
|
||
* @end_color: end color(32 bits)
|
||
* bit[31:24] alpha value
|
||
* bit[23:16] r value
|
||
* bit[15:8] g value
|
||
* bit[7:0] b value
|
||
* @dst_buf: the destination buffer
|
||
* @ctrl: ge ctrl functions
|
||
*/</span>
|
||
<strong class="hl-keyword">struct</strong> ge_fillrect {
|
||
<strong class="hl-keyword">enum</strong> ge_fillrect_type type;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> start_color;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> end_color;
|
||
<strong class="hl-keyword">struct</strong> mpp_buf dst_buf;
|
||
<strong class="hl-keyword">struct</strong> ge_ctrl ctrl;
|
||
};</pre></div></div>
|
||
</li><li class="- topic/li li" data-ofbid="d344763e76__20250121172118">
|
||
<div class="- topic/div div section" id="ge-data-structure-lite__struct-ge-bitblt">
|
||
<strong class="+ topic/ph hi-d/b ph b">struct ge_bitblt</strong>
|
||
<div class="- topic/p p" data-ofbid="d344763e83__20250121172118">位块搬移结构体<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge-data-structure-lite__codeblock_yy3_1wy_2dc" data-ofbid="ge-data-structure-lite__codeblock_yy3_1wy_2dc"><span class="hl-tag-doctype-comment">/**
|
||
* struct ge_bitblt - ge bitblt
|
||
* @src_buf: the source buffer
|
||
* @dst_buf: the destination buffer
|
||
* @ctrl: ge ctrl functions
|
||
*/</span>
|
||
<strong class="hl-keyword">struct</strong> ge_bitblt {
|
||
<strong class="hl-keyword">struct</strong> mpp_buf src_buf;
|
||
<strong class="hl-keyword">struct</strong> mpp_buf dst_buf;
|
||
<strong class="hl-keyword">struct</strong> ge_ctrl ctrl;
|
||
};</pre></div></div>
|
||
</li><li class="- topic/li li" data-ofbid="d344763e88__20250121172118">
|
||
<div class="- topic/div div section" id="ge-data-structure-lite__id10">
|
||
<strong class="+ topic/ph hi-d/b ph b">struct ge_bitblt</strong>
|
||
<div class="- topic/p p" data-ofbid="d344763e95__20250121172118">位块搬移结构体<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge-data-structure-lite__codeblock_sg4_1wy_2dc" data-ofbid="ge-data-structure-lite__codeblock_sg4_1wy_2dc"><span class="hl-tag-doctype-comment">/**
|
||
* struct ge_rotation - ge rotation
|
||
* @src_buf: the source buffer
|
||
* @dst_buf: the destination buffer
|
||
* @src_rot_center: left-top x/y coordinate of src center
|
||
* @dst_rot_center: left-top x/y coordinate of dst center
|
||
* @angle_sin: 2.12 fixed point, the sin value of rotation angle
|
||
* @angle_cos: 2.12 fixed point, the cos value of rotation angle
|
||
* @ctrl: ge ctrl functions
|
||
*/</span>
|
||
<strong class="hl-keyword">struct</strong> ge_rotation {
|
||
<strong class="hl-keyword">struct</strong> mpp_buf src_buf;
|
||
<strong class="hl-keyword">struct</strong> mpp_buf dst_buf;
|
||
<strong class="hl-keyword">struct</strong> mpp_point src_rot_center;
|
||
<strong class="hl-keyword">struct</strong> mpp_point dst_rot_center;
|
||
<strong class="hl-keyword">int</strong> angle_sin;
|
||
<strong class="hl-keyword">int</strong> angle_cos;
|
||
<strong class="hl-keyword">struct</strong> ge_ctrl ctrl;
|
||
};</pre></div></div>
|
||
</li><li class="- topic/li li" data-ofbid="d344763e100__20250121172118">
|
||
<div class="- topic/div div section" id="ge-data-structure-lite__enum-ge-mode">
|
||
<strong class="+ topic/ph hi-d/b ph b">enum ge_mode</strong>
|
||
<p class="- topic/p p" data-ofbid="d344763e107__20250121172118">GE
|
||
模式枚举</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge-data-structure-lite__codeblock_c2v_1wy_2dc" data-ofbid="ge-data-structure-lite__codeblock_c2v_1wy_2dc"><strong class="hl-keyword">enum</strong> ge_mode {
|
||
GE_MODE_NORMAL,
|
||
GE_MODE_CMDQ,
|
||
};</pre>
|
||
</div>
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</li></ul></div></article></main></div>
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