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ps3: fix a performance issue in the Mandelbrot viewer texture upload.

legacy
Sam Hocevar gary 13年前
コミット
ec705032ad
1個のファイルの変更12行の追加1行の削除
  1. +12
    -1
      test/tutorial/tut03.cpp

+ 12
- 1
test/tutorial/tut03.cpp ファイルの表示

@@ -147,7 +147,8 @@ public:
double oldradius = m_radius;
#ifdef __CELLOS_LV2__
m_radius *= pow(2.0, -deltams * 0.00005);
m_center = f64cmplx(0.001643721971153, 0.822467633298876);
m_center = f64cmplx(-.22815528839841, -1.11514249704382);
//m_center = f64cmplx(0.001643721971153, 0.822467633298876);
#else
double zoom = pow(2.0, (buttons[0] ? -deltams : deltams) * 0.0025);
if (m_radius * zoom > 8.0)
@@ -270,6 +271,8 @@ public:
m_size.x / 2, m_size.y * 2, 0,
TEXTURE_FORMAT, TEXTURE_TYPE, m_pixels);
#if defined __CELLOS_LV2__
/* We need this hint because by default the storage type is
* GL_TEXTURE_SWIZZLED_GPU_SCE. */
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_ALLOCATION_HINT_SCE,
GL_TEXTURE_TILED_GPU_SCE);
#endif
@@ -427,10 +430,18 @@ public:
{
m_dirty[m_frame]--;

#ifdef __CELLOS_LV2__
/* glTexSubImage2D is extremely slow on the PS3, to the point
* that uploading the whole texture is 40 times faster. */
glTexImage2D(GL_TEXTURE_2D, 0, INTERNAL_FORMAT,
m_size.x / 2, m_size.y * 2, 0,
TEXTURE_FORMAT, TEXTURE_TYPE, m_pixels);
#else
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, m_frame * m_size.y / 2,
m_size.x / 2, m_size.y / 2,
TEXTURE_FORMAT, TEXTURE_TYPE,
m_pixels + m_size.x * m_size.y / 4 * m_frame);
#endif
}

/* If other frames are dirty, upload fake data for now */


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