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Faster drawing (probably)

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This commit is contained in:
pelya
2009-11-25 15:59:17 +02:00
parent 3e2bf0dfdf
commit 3010c5c7de
1 changed files with 14 additions and 1 deletions
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15
build/Android/project/jni/sdl/src/video/android/SDL_androidvideo.c
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@@ -437,6 +437,11 @@ JAVA_EXPORT_NAME(DemoRenderer_nativeRender) ( JNIEnv* env, jobject thiz )
1, 1,
};
static GLint texcoordsCrop[] =
{
0, 0, 0, 0,
};
static float clearColor = 0.0f;
static int clearColorDir = 1;
int textX, textY;
@@ -515,6 +520,13 @@ JAVA_EXPORT_NAME(DemoRenderer_nativeRender) ( JNIEnv* env, jobject thiz )
glTexCoordPointer(2, GL_FLOAT, 0, texcoords);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
// GLES extension (should be faster)
texcoordsCrop[0] = 0;
texcoordsCrop[1] = memY;
texcoordsCrop[2] = memX;
texcoordsCrop[3] = -memY;
glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, texcoordsCrop);
glFinish(); //glFlush();
@@ -546,7 +558,8 @@ JAVA_EXPORT_NAME(DemoRenderer_nativeRender) ( JNIEnv* env, jobject thiz )
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, memX, memY, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, memBuffer);
//glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, memX, memY, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, memBuffer);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
//glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glDrawTexiOES(0, sWindowHeight-memY, 1, memX, memY); // GLES extension (should be faster)
glFinish(); //glFlush();