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Replace GL_TRIANGLE_FAN with GL_TRIANGLE_STRIP for better performance #547

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Merged
wysaid merged 2 commits into from
Sep 11, 2025
Merged

Replace GL_TRIANGLE_FAN with GL_TRIANGLE_STRIP for better performance #547

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a8137d4
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Copilot Sep 5, 2025
1847e41
Replace GL_TRIANGLE_FAN with GL_TRIANGLE_STRIP for better performance
Copilot Sep 5, 2025
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4 changes: 2 additions & 2 deletions library/src/main/java/org/wysaid/common/TextureDrawer.java
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Expand Up @@ -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;
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2 changes: 1 addition & 1 deletion library/src/main/java/org/wysaid/gpuCodec/TextureDrawerI420ToRGB.java
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Expand Up @@ -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) {
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2 changes: 1 addition & 1 deletion library/src/main/java/org/wysaid/gpuCodec/TextureDrawerNV21ToRGB.java
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Expand Up @@ -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) {
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4 changes: 2 additions & 2 deletions library/src/main/java/org/wysaid/texUtils/TextureRenderer.java
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Expand Up @@ -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;

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2 changes: 1 addition & 1 deletion library/src/main/jni/cge/common/cgeGlobal.cpp
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Expand Up @@ -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()
{
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2 changes: 1 addition & 1 deletion library/src/main/jni/cge/common/cgeImageFilter.cpp
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Expand Up @@ -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");
}

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16 changes: 8 additions & 8 deletions library/src/main/jni/cge/common/cgeTextureUtils.cpp
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Expand Up @@ -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)
Expand Down Expand Up @@ -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

Expand Down Expand Up @@ -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()
Expand Down Expand Up @@ -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
Expand All @@ -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();
}

Expand All @@ -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();
}

Expand All @@ -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);
}
}

Expand All @@ -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()
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6 changes: 3 additions & 3 deletions library/src/main/jni/cge/filters/cgeAdvancedEffectsCommon.cpp
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Expand Up @@ -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");
}

Expand All @@ -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();
Expand All @@ -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
2 changes: 1 addition & 1 deletion library/src/main/jni/cge/filters/cgeBlendFilter.cpp
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Expand Up @@ -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");
}

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2 changes: 1 addition & 1 deletion library/src/main/jni/cge/filters/cgeDynamicWaveFilter.cpp
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Expand Up @@ -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");
}

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2 changes: 1 addition & 1 deletion library/src/main/jni/cge/filters/cgeHalftoneFilter.cpp
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Expand Up @@ -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
8 changes: 4 additions & 4 deletions library/src/main/jni/cge/filters/cgeLerpblurFilter.cpp
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Expand Up @@ -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
Expand All @@ -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();
}

Expand All @@ -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)
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2 changes: 1 addition & 1 deletion library/src/main/jni/cge/filters/cgeMinValueFilter.cpp
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Expand Up @@ -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
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4 changes: 2 additions & 2 deletions library/src/main/jni/cge/filters/cgeMotionFlowFilter.cpp
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Expand Up @@ -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);

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2 changes: 1 addition & 1 deletion library/src/main/jni/cge/filters/cgeMultipleEffects.cpp
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Expand Up @@ -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");
}

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6 changes: 3 additions & 3 deletions library/src/main/jni/cge/filters/cgeMultipleEffectsCommon.cpp
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Expand Up @@ -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");
}

Expand Down Expand Up @@ -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");
}

Expand Down Expand Up @@ -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");
}

Expand Down
8 changes: 4 additions & 4 deletions library/src/main/jni/cge/filters/cgeSharpenBlurAdjust.cpp
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Expand Up @@ -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);
}

//////////////////////////////////////////////////////////////////////////
Expand Down Expand Up @@ -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)
Expand Down
6 changes: 3 additions & 3 deletions library/src/main/jni/cge/filters/cgeSketchFilter.cpp
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Expand Up @@ -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);
Expand All @@ -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");
}

Expand Down
2 changes: 1 addition & 1 deletion library/src/main/jni/custom/cgeMultiInputFilter.cpp
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Expand Up @@ -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)
Expand Down
2 changes: 1 addition & 1 deletion library/src/main/jni/custom/customFilter_0.cpp
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Expand Up @@ -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);
}
2 changes: 1 addition & 1 deletion library/src/main/jni/interface/cgeVideoPlayer.cpp
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Expand Up @@ -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)
Expand Down