void GLSink::draw()
{
unsigned int uiBufferIdx;
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Update stream
glBindTexture(GL_TEXTURE_2D, m_uiTexture);
FrameData* pFrame = NULL;
// block until new frame is available
uiBufferIdx = m_pSyncBuffer->getBufferForReading((void*&)pFrame);
m_pInputBuffer->bindBuffer(pFrame->uiBufferId);
if (m_bUseP2P)
{
// This is a non-blocking call, but the GPU is instructed to wait until
// the marker value is pFrame->uiTransferId before processing the subsequent
// instructions
m_pInputBuffer->waitMarker(pFrame->uiTransferId);
}
// Copy bus addressable buffer into texture object
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, m_uiTextureWidth, m_uiTextureHeight, m_nExtFormat, m_nType, NULL);
// Insert fence to determine when the buffer was copied into the texture
// and we can release the buffer
GLsync Fence = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
// Draw quad with mapped texture
glPushMatrix();
// Scale quad to the AR of the incoming texture
glScalef(m_fAspectRatio, 1.0f, 1.0f);
// Draw quad with mapped texture
glBindBuffer(GL_ARRAY_BUFFER, m_uiQuad);
glDrawArrays(GL_QUADS, 0, 4);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glPopMatrix();
glBindTexture(GL_TEXTURE_2D, 0);
// Wait until buffer is no longer needed and release it
if (glIsSync(Fence))
{
glClientWaitSync(Fence, GL_SYNC_FLUSH_COMMANDS_BIT, OneSecond);
glDeleteSync(Fence);
}
m_pSyncBuffer->releaseReadBuffer();
}
void GLSink::draw()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Update stream
glBindTexture(GL_TEXTURE_2D, m_uiTexture);
FrameData* pFrame = NULL;
// block until new frame is available
m_uiBufferIdx = m_pInputBuffer->getBufferForReading((void*&)pFrame);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, m_pUnPackBuffer[m_uiBufferIdx]);
glWaitMarkerAMD(m_pUnPackBuffer[m_uiBufferIdx], pFrame->uiTransferId);
// Copy pinned mem to texture
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, m_uiTextureWidth, m_uiTextureHeight, m_nExtFormat, m_nType, NULL);
// Insert fence to determine when we can release the buffer
GLsync Fence = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
glPushMatrix();
// Scale quad to the AR of the incoming texture
glScalef(m_fAspectRatio, 1.0f, 1.0f);
// Draw quad with mapped texture
glBindBuffer(GL_ARRAY_BUFFER, m_uiQuad);
glDrawArrays(GL_QUADS, 0, 4);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glPopMatrix();
glBindTexture(GL_TEXTURE_2D, 0);
if (glIsSync(Fence))
{
glClientWaitSync(Fence, GL_SYNC_FLUSH_COMMANDS_BIT, OneSecond);
glDeleteSync(Fence);
}
m_pInputBuffer->releaseReadBuffer();
}
enum piglit_result
piglit_display(void)
{
GLboolean pass = GL_TRUE;
GLenum wait_val;
GLsync sync;
glClear(GL_COLOR_BUFFER_BIT);
glBegin(GL_TRIANGLES);
glColor3f(.8,0,0);
glVertex3f(-0.9, -0.9, -30.0);
glColor3f(0,.9,0);
glVertex3f( 0.9, -0.9, -30.0);
glColor3f(0,0,.7);
glVertex3f( 0.0, 0.9, -30.0);
glEnd();
glGetError();
sync = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
FAIL_ON_ERROR("glFenceSync");
if (!glIsSync(sync)) {
fprintf(stderr, "IsSync(%p) failed\n", sync);
pass = GL_FALSE;
goto done;
}
FAIL_ON_ERROR("glIsSync");
if (! test_GetSynciv(sync, GL_SYNC_CONDITION,
GL_SYNC_GPU_COMMANDS_COMPLETE)) {
pass = GL_FALSE;
goto done;
}
if (! test_GetSynciv(sync, GL_SYNC_FLAGS, 0)) {
pass = GL_FALSE;
goto done;
}
glFinish();
/* After the glFinish, the sync *must* be signaled!
*/
if (! test_GetSynciv(sync, GL_SYNC_STATUS, GL_SIGNALED)) {
pass = GL_FALSE;
goto done;
}
/* Since the sync has already been signaled, the wait should return
* GL_ALREADY_SIGNALED.
*/
wait_val = glClientWaitSync(sync, 0, 1);
FAIL_ON_ERROR("glClientWaitSync");
if (wait_val != GL_ALREADY_SIGNALED) {
fprintf(stderr, "glClientWaitSync expected 0x%08x, "
"got 0x%08x\n", GL_ALREADY_SIGNALED, wait_val);
pass = GL_FALSE;
}
glDeleteSync(sync);
FAIL_ON_ERROR("glDeleteSync");
done:
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
JNIEXPORT jboolean JNICALL Java_org_lwjgl_opengl_GL32_nglIsSync(JNIEnv *env, jclass clazz, jlong sync, jlong function_pointer) {
glIsSyncPROC glIsSync = (glIsSyncPROC)((intptr_t)function_pointer);
GLboolean __result = glIsSync((GLsync)(intptr_t)sync);
return __result;
}
JNIEXPORT jboolean JNICALL Java_org_lwjgl_opengl_GL32C_nglIsSync(JNIEnv *__env, jclass clazz, jlong syncAddress) {
glIsSyncPROC glIsSync = (glIsSyncPROC)tlsGetFunction(659);
intptr_t sync = (intptr_t)syncAddress;
UNUSED_PARAM(clazz)
return (jboolean)glIsSync(sync);
}
