Replace GL_TRIANGLE_FAN with GL_TRIANGLE_STRIP for better performance

Copilot · wysaid · Copilot · commit 1847e41a482a · 2025-09-05T12:12:26.000Z
Co-authored-by: wysaid &lt;1430725+wysaid@users.noreply.github.com&gt;
diff --git a/library/src/main/java/org/wysaid/common/TextureDrawer.java b/library/src/main/java/org/wysaid/common/TextureDrawer.java
@@ -33,8 +33,8 @@ public class TextureDrawer {
             "   gl_FragColor = texture2D(inputImageTexture, texCoord);\n" +
             "}";
 
-    public static final float[] vertices = {-1.0f, -1.0f, 1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f};
-    public static final int DRAW_FUNCTION = GLES20.GL_TRIANGLE_FAN;
+    public static final float[] vertices = {-1.0f, -1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f, 1.0f};
+    public static final int DRAW_FUNCTION = GLES20.GL_TRIANGLE_STRIP;
 
     protected ProgramObject mProgram;
     protected int mVertBuffer;
diff --git a/library/src/main/java/org/wysaid/gpuCodec/TextureDrawerI420ToRGB.java b/library/src/main/java/org/wysaid/gpuCodec/TextureDrawerI420ToRGB.java
@@ -62,7 +62,7 @@ public void drawTextures() {
         GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, mVertBuffer);
         GLES20.glEnableVertexAttribArray(0);
         GLES20.glVertexAttribPointer(0, 2, GLES20.GL_FLOAT, false, 0, 0);
-        GLES20.glDrawArrays(GLES20.GL_TRIANGLE_FAN, 0, 4);
+        GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);
     }
 
     public void drawTextures(int texY, int texU, int texV) {
diff --git a/library/src/main/java/org/wysaid/gpuCodec/TextureDrawerNV21ToRGB.java b/library/src/main/java/org/wysaid/gpuCodec/TextureDrawerNV21ToRGB.java
@@ -59,7 +59,7 @@ public void drawTextures() {
         GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, mVertBuffer);
         GLES20.glEnableVertexAttribArray(0);
         GLES20.glVertexAttribPointer(0, 2, GLES20.GL_FLOAT, false, 0, 0);
-        GLES20.glDrawArrays(GLES20.GL_TRIANGLE_FAN, 0, 4);
+        GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);
     }
 
     public void drawTextures(int texY, int texUV) {
diff --git a/library/src/main/java/org/wysaid/texUtils/TextureRenderer.java b/library/src/main/java/org/wysaid/texUtils/TextureRenderer.java
@@ -77,8 +77,8 @@ public Viewport(int _x, int _y, int _width, int _height) {
     protected static final String FLIPSCALE_NAME = "flipScale";
     protected static final String TRANSFORM_NAME = "transform";
 
-    public static final float[] vertices = {-1.0f, -1.0f, 1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f};
-    public static final int DRAW_FUNCTION = GLES20.GL_TRIANGLE_FAN;
+    public static final float[] vertices = {-1.0f, -1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f, 1.0f};
+    public static final int DRAW_FUNCTION = GLES20.GL_TRIANGLE_STRIP;
 
     protected int TEXTURE_2D_BINDABLE;
 
diff --git a/library/src/main/jni/cge/common/cgeGlobal.cpp b/library/src/main/jni/cge/common/cgeGlobal.cpp
@@ -30,7 +30,7 @@ bool g_shouldUsePBO = true;
 int CGEGlobalConfig::viewWidth = 1024;
 int CGEGlobalConfig::viewHeight = 768;
 GLuint CGEGlobalConfig::sVertexBufferCommon = 0;
-float CGEGlobalConfig::sVertexDataCommon[8] = { -1.0f, -1.0f, 1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f };
+float CGEGlobalConfig::sVertexDataCommon[8] = { -1.0f, -1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f, 1.0f };
 
 void cgeInitFilterStatus()
 {
diff --git a/library/src/main/jni/cge/common/cgeImageFilter.cpp b/library/src/main/jni/cge/common/cgeImageFilter.cpp
@@ -177,7 +177,7 @@ void CGEImageFilterInterface::render2Texture(CGEImageHandlerInterface* handler,
     if (m_uniformParam != nullptr)
         m_uniformParam->assignUniforms(handler, m_program.programID());
 
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
     cgeCheckGLError("glDrawArrays");
 }
 
diff --git a/library/src/main/jni/cge/common/cgeTextureUtils.cpp b/library/src/main/jni/cge/common/cgeTextureUtils.cpp
@@ -419,7 +419,7 @@ void TextureDrawer::drawTexture(GLuint src)
     glVertexAttribPointer(0, 2, GL_FLOAT, false, 0, 0);
 
     m_program.bind();
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 }
 
 void TextureDrawer::setRotation(float rad)
@@ -590,7 +590,7 @@ void TextureDrawer4ExtOES::drawTexture(GLuint src)
     glVertexAttribPointer(0, 2, GL_FLOAT, false, 0, 0);
 
     m_program.bind();
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 }
 #endif
 
@@ -622,7 +622,7 @@ void TextureDrawerYUV::drawTextures()
     glBindBuffer(GL_ARRAY_BUFFER, m_vertBuffer);
     glEnableVertexAttribArray(0);
     glVertexAttribPointer(0, 2, GL_FLOAT, false, 0, 0);
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 }
 
 CGEConstString TextureDrawerYUV::getFragmentShaderString()
@@ -765,7 +765,7 @@ void CGELerpBlurUtil::calcWithTexture(GLuint texture, int width, int height, GLu
     m_framebuffer.bindTexture2D(m_texCache[0].texID);
     glBindTexture(GL_TEXTURE_2D, texture);
     glViewport(0, 0, m_texCache[0].size.width, m_texCache[0].size.height);
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
     glFlush();
 
     // down scale
@@ -776,7 +776,7 @@ void CGELerpBlurUtil::calcWithTexture(GLuint texture, int width, int height, GLu
         glViewport(0, 0, texCache.size.width, texCache.size.height);
 
         glBindTexture(GL_TEXTURE_2D, m_texCache[i - 1].texID);
-        glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+        glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
         glFlush();
     }
 
@@ -788,7 +788,7 @@ void CGELerpBlurUtil::calcWithTexture(GLuint texture, int width, int height, GLu
         glViewport(0, 0, texCache.size.width, texCache.size.height);
 
         glBindTexture(GL_TEXTURE_2D, m_texCache[i].texID);
-        glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+        glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
         glFlush();
     }
 
@@ -797,7 +797,7 @@ void CGELerpBlurUtil::calcWithTexture(GLuint texture, int width, int height, GLu
         m_framebuffer.bindTexture2D(target);
         glViewport(0, 0, targetWidth, targetHeight);
         glBindTexture(GL_TEXTURE_2D, m_texCache[0].texID);
-        glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+        glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
     }
 }
 
@@ -809,7 +809,7 @@ void CGELerpBlurUtil::drawTexture(GLuint texID)
     glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, 0);
     glActiveTexture(GL_TEXTURE0);
     glBindTexture(GL_TEXTURE_2D, texID);
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 }
 
 void CGELerpBlurUtil::_clearMipmaps()
diff --git a/library/src/main/jni/cge/filters/cgeAdvancedEffectsCommon.cpp b/library/src/main/jni/cge/filters/cgeAdvancedEffectsCommon.cpp
@@ -28,7 +28,7 @@ void CGEAdvancedEffectOneStepFilterHelper::render2Texture(CGEImageHandlerInterfa
         CGESizei sz = handler->getOutputFBOSize();
         m_program.sendUniformf(paramStepsName, 1.0f / sz.width, 1.0f / sz.height);
     }
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
     cgeCheckGLError("glDrawArrays");
 }
 
@@ -51,7 +51,7 @@ void CGEAdvancedEffectTwoStepFilterHelper::render2Texture(CGEImageHandlerInterfa
         glBindTexture(GL_TEXTURE_2D, srcTexture);
 
         m_program.sendUniformf(paramStepsName, 0.0f, 1.0f / sz.height);
-        glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+        glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
     }
     // Pass Two
     handler->swapBufferFBO();
@@ -61,7 +61,7 @@ void CGEAdvancedEffectTwoStepFilterHelper::render2Texture(CGEImageHandlerInterfa
     glBindTexture(GL_TEXTURE_2D, handler->getBufferTextureID());
 
     m_program.sendUniformf(paramStepsName, 1.0f / sz.width, 0.0f);
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 }
 
 } // namespace CGE
diff --git a/library/src/main/jni/cge/filters/cgeBlendFilter.cpp b/library/src/main/jni/cge/filters/cgeBlendFilter.cpp
@@ -921,7 +921,7 @@ void CGEBlendTileFilter::render2Texture(CGEImageHandlerInterface* handler, GLuin
 
     if (m_uniformParam != nullptr)
         m_uniformParam->assignUniforms(handler, m_program.programID());
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
     cgeCheckGLError("glDrawArrays");
 }
 
diff --git a/library/src/main/jni/cge/filters/cgeDynamicWaveFilter.cpp b/library/src/main/jni/cge/filters/cgeDynamicWaveFilter.cpp
@@ -68,7 +68,7 @@ void CGEDynamicWaveFilter::render2Texture(CGEImageHandlerInterface* handler, GLu
     if (m_uniformParam != nullptr)
         m_uniformParam->assignUniforms(handler, m_program.programID());
 
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
     cgeCheckGLError("glDrawArrays");
 }
 
diff --git a/library/src/main/jni/cge/filters/cgeHalftoneFilter.cpp b/library/src/main/jni/cge/filters/cgeHalftoneFilter.cpp
@@ -69,7 +69,7 @@ void CGEHalftoneFilter::render2Texture(CGE::CGEImageHandlerInterface* handler, G
     float dotPercent = m_dotSize / sz.width;
     m_program.sendUniformf(paramAspectRatio, aspectRatio);
     m_program.sendUniformf(paramDotPercent, dotPercent, dotPercent / aspectRatio);
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
     cgeCheckGLError("glDrawArrays");
 }
 } // namespace CGE
diff --git a/library/src/main/jni/cge/filters/cgeLerpblurFilter.cpp b/library/src/main/jni/cge/filters/cgeLerpblurFilter.cpp
@@ -148,7 +148,7 @@ void CGELerpblurFilter::render2Texture(CGEImageHandlerInterface* handler, GLuint
     m_framebuffer.bindTexture2D(m_texCache[0].texID);
     glBindTexture(GL_TEXTURE_2D, srcTexture);
     glViewport(0, 0, m_texCache[0].size.width, m_texCache[0].size.height);
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
     glFlush();
 
     // down scale
@@ -159,7 +159,7 @@ void CGELerpblurFilter::render2Texture(CGEImageHandlerInterface* handler, GLuint
         glViewport(0, 0, texCache.size.width, texCache.size.height);
 
         glBindTexture(GL_TEXTURE_2D, m_texCache[i - 1].texID);
-        glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+        glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
         glFlush();
     }
 
@@ -171,13 +171,13 @@ void CGELerpblurFilter::render2Texture(CGEImageHandlerInterface* handler, GLuint
         glViewport(0, 0, texCache.size.width, texCache.size.height);
 
         glBindTexture(GL_TEXTURE_2D, m_texCache[i].texID);
-        glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+        glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
         glFlush();
     }
 
     handler->setAsTarget();
     glBindTexture(GL_TEXTURE_2D, m_texCache[0].texID);
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 }
 
 void CGELerpblurFilter::setMipmapBase(float value)
diff --git a/library/src/main/jni/cge/filters/cgeMinValueFilter.cpp b/library/src/main/jni/cge/filters/cgeMinValueFilter.cpp
@@ -205,7 +205,7 @@ void CGEMinValueFilter3x3::render2Texture(CGEImageHandlerInterface* handler, GLu
     glActiveTexture(GL_TEXTURE0);
     glBindTexture(GL_TEXTURE_2D, srcTexture);
 
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
     cgeCheckGLError("glDrawArrays");
 }
 } // namespace CGE
diff --git a/library/src/main/jni/cge/filters/cgeMotionFlowFilter.cpp b/library/src/main/jni/cge/filters/cgeMotionFlowFilter.cpp
@@ -127,12 +127,12 @@ void CGEMotionFlowFilter::render2Texture(CGEImageHandlerInterface* handler, GLui
     {
         glUniform1f(m_alphaLoc, alpha += m_dAlpha);
         glBindTexture(GL_TEXTURE_2D, texID);
-        glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+        glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
     }
 
     glUniform1f(m_alphaLoc, alpha += m_dAlpha);
     glBindTexture(GL_TEXTURE_2D, srcTexture);
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 
     glDisable(GL_BLEND);
 
diff --git a/library/src/main/jni/cge/filters/cgeMultipleEffects.cpp b/library/src/main/jni/cge/filters/cgeMultipleEffects.cpp
@@ -67,7 +67,7 @@ void CGEMutipleMixFilter::render2Texture(CGEImageHandlerInterface* handler, GLui
     glActiveTexture(GL_TEXTURE1);
     glBindTexture(GL_TEXTURE_2D, srcTexture);
 
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
     cgeCheckGLError("glDrawArrays");
 }
 
diff --git a/library/src/main/jni/cge/filters/cgeMultipleEffectsCommon.cpp b/library/src/main/jni/cge/filters/cgeMultipleEffectsCommon.cpp
@@ -437,7 +437,7 @@ void CGELomoFilter::render2Texture(CGEImageHandlerInterface* handler, GLuint src
         m_program.sendUniformf(paramSaturationName, sat);
     }
 
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
     cgeCheckGLError("glDrawArrays");
 }
 
@@ -516,7 +516,7 @@ void CGELomoWithCurveFilter::render2Texture(CGEImageHandlerInterface* handler, G
         m_program.sendUniformf(paramSaturationName, sat);
     }
 
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
     cgeCheckGLError("glDrawArrays");
 }
 
@@ -680,7 +680,7 @@ void CGEColorScaleFilter::render2Texture(CGEImageHandlerInterface* handler, GLui
         m_program.sendUniformf(paramColorScaleName, colorScale[0], colorScale[1]);
     }
 
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
     cgeCheckGLError("glDrawArrays");
 }
 
diff --git a/library/src/main/jni/cge/filters/cgeSharpenBlurAdjust.cpp b/library/src/main/jni/cge/filters/cgeSharpenBlurAdjust.cpp
@@ -237,13 +237,13 @@ void CGESharpenBlurFilter::render2Texture(CGEImageHandlerInterface* handler, GLu
     handler->setAsTarget();
     glBindTexture(GL_TEXTURE_2D, srcTexture);
     m_program.sendUniformf(paramBlurNormalName, 0.0f, 1.0f);
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 
     // Pass Two
     handler->swapBufferFBO();
     glBindTexture(GL_TEXTURE_2D, handler->getBufferTextureID());
     m_program.sendUniformf(paramBlurNormalName, 1.0f, 0.0f);
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 }
 
 //////////////////////////////////////////////////////////////////////////
@@ -286,13 +286,13 @@ void CGEBlurFastFilter::render2Texture(CGEImageHandlerInterface* handler, GLuint
     handler->setAsTarget();
     glBindTexture(GL_TEXTURE_2D, handler->getBufferTextureID());
     m_program.sendUniformf(paramBlurNormalName, 0.0f, 1.0f);
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 
     // Pass Two
     glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, dstTexture, 0);
     glBindTexture(GL_TEXTURE_2D, handler->getTargetTextureID());
     m_program.sendUniformf(paramBlurNormalName, 1.0f, 0.0f);
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 }
 
 void CGEBlurFastFilter::setSamplerScale(int value)
diff --git a/library/src/main/jni/cge/filters/cgeSketchFilter.cpp b/library/src/main/jni/cge/filters/cgeSketchFilter.cpp
@@ -93,11 +93,11 @@ void CGESketchFilter::render2Texture(CGE::CGEImageHandlerInterface* handler, GLu
         glBindTexture(GL_TEXTURE_2D, srcTexture);
         glUniform2f(m_maxValueFilter.getStepsLocation(), 1.0f / sz.width, 1.0f / sz.height);
 
-        glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+        glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 
         //
         //  			glBindTexture(GL_TEXTURE_2D, handler->getTargetTextureID());
-        //  			glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+        //  			glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
     }
 
     glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, handler->getTargetTextureID(), 0);
@@ -113,7 +113,7 @@ void CGESketchFilter::render2Texture(CGE::CGEImageHandlerInterface* handler, GLu
     glActiveTexture(GL_TEXTURE1);
     glBindTexture(GL_TEXTURE_2D, m_textureCache);
 
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
     cgeCheckGLError("glDrawArrays");
 }
 
diff --git a/library/src/main/jni/custom/cgeMultiInputFilter.cpp b/library/src/main/jni/custom/cgeMultiInputFilter.cpp
@@ -42,7 +42,7 @@ void CGEMultiInputFilter::render2Texture(CGEImageHandlerInterface* handler, GLui
         }
     }
 
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 }
 
 void CGEMultiInputFilter::updateInputTextures(GLuint* textures, int count)
diff --git a/library/src/main/jni/custom/customFilter_0.cpp b/library/src/main/jni/custom/customFilter_0.cpp
@@ -81,5 +81,5 @@ void CustomFilter_0::render2Texture(CGEImageHandlerInterface* handler, GLuint sr
     glActiveTexture(GL_TEXTURE0);
     glBindTexture(GL_TEXTURE_2D, srcTexture);
 
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 }
diff --git a/library/src/main/jni/interface/cgeVideoPlayer.cpp b/library/src/main/jni/interface/cgeVideoPlayer.cpp
@@ -203,7 +203,7 @@ void CGEVideoPlayerYUV420P::render()
     glBindBuffer(GL_ARRAY_BUFFER, m_vertexBuffer);
     glEnableVertexAttribArray(m_posAttribLocation);
     glVertexAttribPointer(m_posAttribLocation, 2, GL_FLOAT, GL_FALSE, 0, 0);
-    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 }
 
 void CGEVideoPlayerYUV420P::setRotation(float rad)

Original file line number	Diff line number	Diff line change
`@@ -62,7 +62,7 @@ public void drawTextures() {`
`62`	`62`	`GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, mVertBuffer);`
`63`	`63`	`GLES20.glEnableVertexAttribArray(0);`
`64`	`64`	`GLES20.glVertexAttribPointer(0, 2, GLES20.GL_FLOAT, false, 0, 0);`
`65`		`- GLES20.glDrawArrays(GLES20.GL_TRIANGLE_FAN, 0, 4);`
	`65`	`+ GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);`
`66`	`66`	`}`
`67`	`67`
`68`	`68`	`public void drawTextures(int texY, int texU, int texV) {`
Original file line number	Diff line number	Diff line change
`@@ -59,7 +59,7 @@ public void drawTextures() {`
`59`	`59`	`GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, mVertBuffer);`
`60`	`60`	`GLES20.glEnableVertexAttribArray(0);`
`61`	`61`	`GLES20.glVertexAttribPointer(0, 2, GLES20.GL_FLOAT, false, 0, 0);`
`62`		`- GLES20.glDrawArrays(GLES20.GL_TRIANGLE_FAN, 0, 4);`
	`62`	`+ GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);`
`63`	`63`	`}`
`64`	`64`
`65`	`65`	`public void drawTextures(int texY, int texUV) {`
Original file line number	Diff line number	Diff line change
`@@ -30,7 +30,7 @@ bool g_shouldUsePBO = true;`
`30`	`30`	`int CGEGlobalConfig::viewWidth = 1024;`
`31`	`31`	`int CGEGlobalConfig::viewHeight = 768;`
`32`	`32`	`GLuint CGEGlobalConfig::sVertexBufferCommon = 0;`
`33`		`-float CGEGlobalConfig::sVertexDataCommon[8] = { -1.0f, -1.0f, 1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f };`
	`33`	`+float CGEGlobalConfig::sVertexDataCommon[8] = { -1.0f, -1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f, 1.0f };`
`34`	`34`
`35`	`35`	`void cgeInitFilterStatus()`
`36`	`36`	`{`
Original file line number	Diff line number	Diff line change
`@@ -177,7 +177,7 @@ void CGEImageFilterInterface::render2Texture(CGEImageHandlerInterface* handler,`
`177`	`177`	`if (m_uniformParam != nullptr)`
`178`	`178`	`m_uniformParam->assignUniforms(handler, m_program.programID());`
`179`	`179`
`180`		`- glDrawArrays(GL_TRIANGLE_FAN, 0, 4);`
	`180`	`+ glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);`
`181`	`181`	`cgeCheckGLError("glDrawArrays");`
`182`	`182`	`}`
`183`	`183`
Original file line number	Diff line number	Diff line change
`@@ -28,7 +28,7 @@ void CGEAdvancedEffectOneStepFilterHelper::render2Texture(CGEImageHandlerInterfa`
`28`	`28`	`CGESizei sz = handler->getOutputFBOSize();`
`29`	`29`	`m_program.sendUniformf(paramStepsName, 1.0f / sz.width, 1.0f / sz.height);`
`30`	`30`	`}`
`31`		`- glDrawArrays(GL_TRIANGLE_FAN, 0, 4);`
	`31`	`+ glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);`
`32`	`32`	`cgeCheckGLError("glDrawArrays");`
`33`	`33`	`}`
`34`	`34`
`@@ -51,7 +51,7 @@ void CGEAdvancedEffectTwoStepFilterHelper::render2Texture(CGEImageHandlerInterfa`
`51`	`51`	`glBindTexture(GL_TEXTURE_2D, srcTexture);`
`52`	`52`
`53`	`53`	`m_program.sendUniformf(paramStepsName, 0.0f, 1.0f / sz.height);`
`54`		`- glDrawArrays(GL_TRIANGLE_FAN, 0, 4);`
	`54`	`+ glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);`
`55`	`55`	`}`
`56`	`56`	`// Pass Two`
`57`	`57`	`handler->swapBufferFBO();`
`@@ -61,7 +61,7 @@ void CGEAdvancedEffectTwoStepFilterHelper::render2Texture(CGEImageHandlerInterfa`
`61`	`61`	`glBindTexture(GL_TEXTURE_2D, handler->getBufferTextureID());`
`62`	`62`
`63`	`63`	`m_program.sendUniformf(paramStepsName, 1.0f / sz.width, 0.0f);`
`64`		`- glDrawArrays(GL_TRIANGLE_FAN, 0, 4);`
	`64`	`+ glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);`
`65`	`65`	`}`
`66`	`66`
`67`	`67`	`} // namespace CGE`
Original file line number	Diff line number	Diff line change
`@@ -921,7 +921,7 @@ void CGEBlendTileFilter::render2Texture(CGEImageHandlerInterface* handler, GLuin`
`921`	`921`
`922`	`922`	`if (m_uniformParam != nullptr)`
`923`	`923`	`m_uniformParam->assignUniforms(handler, m_program.programID());`
`924`		`- glDrawArrays(GL_TRIANGLE_FAN, 0, 4);`
	`924`	`+ glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);`
`925`	`925`	`cgeCheckGLError("glDrawArrays");`
`926`	`926`	`}`
`927`	`927`
Original file line number	Diff line number	Diff line change
`@@ -68,7 +68,7 @@ void CGEDynamicWaveFilter::render2Texture(CGEImageHandlerInterface* handler, GLu`
`68`	`68`	`if (m_uniformParam != nullptr)`
`69`	`69`	`m_uniformParam->assignUniforms(handler, m_program.programID());`
`70`	`70`
`71`		`- glDrawArrays(GL_TRIANGLE_FAN, 0, 4);`
	`71`	`+ glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);`
`72`	`72`	`cgeCheckGLError("glDrawArrays");`
`73`	`73`	`}`
`74`	`74`