1 files changed, 143 insertions, 0 deletions
diff --git a/rsSampler.cpp b/rsSampler.cpp
new file mode 100644
index 00000000..3c008c9d
--- /dev/null
+++ b/rsSampler.cpp
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "rsContext.h"
+
+
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+#include <utils/Log.h>
+
+#include "rsContext.h"
+#include "rsSampler.h"
+
+using namespace android;
+using namespace android::renderscript;
+
+
+Sampler::Sampler()
+{
+    // Should not get called.
+    rsAssert(0);
+}
+
+Sampler::Sampler(RsSamplerValue magFilter,
+                 RsSamplerValue minFilter,
+                 RsSamplerValue wrapS,
+                 RsSamplerValue wrapT,
+                 RsSamplerValue wrapR)
+{
+    mMagFilter = magFilter;
+    mMinFilter = minFilter;
+    mWrapS = wrapS;
+    mWrapT = wrapT;
+    mWrapR = wrapR;
+}
+
+Sampler::~Sampler()
+{
+}
+
+void Sampler::setupGL()
+{
+    //LOGE("setup gl");
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+
+}
+
+void Sampler::bindToContext(SamplerState *ss, uint32_t slot)
+{
+    ss->mSamplers[slot].set(this);
+    mBoundSlot = slot;
+}
+
+void Sampler::unbindFromContext(SamplerState *ss)
+{
+    int32_t slot = mBoundSlot;
+    mBoundSlot = -1;
+    ss->mSamplers[slot].clear();
+}
+
+void SamplerState::setupGL()
+{
+    for (uint32_t ct=0; ct < 1/*RS_MAX_SAMPLER_SLOT*/; ct++) {
+        Sampler *s = mSamplers[ct].get();
+        if (s) {
+            s->setupGL();
+        } else {
+            glBindTexture(GL_TEXTURE_2D, 0);
+        }
+    }
+}
+
+////////////////////////////////
+
+namespace android {
+namespace renderscript {
+
+
+void rsi_SamplerBegin(Context *rsc)
+{
+    SamplerState * ss = &rsc->mStateSampler;
+
+    ss->mMagFilter = RS_SAMPLER_LINEAR;
+    ss->mMinFilter = RS_SAMPLER_LINEAR;
+    ss->mWrapS = RS_SAMPLER_WRAP;
+    ss->mWrapT = RS_SAMPLER_WRAP;
+    ss->mWrapR = RS_SAMPLER_WRAP;
+}
+
+void rsi_SamplerSet(Context *rsc, RsSamplerParam param, RsSamplerValue value)
+{
+    SamplerState * ss = &rsc->mStateSampler;
+
+    switch(param) {
+    case RS_SAMPLER_MAG_FILTER:
+        ss->mMagFilter = value;
+        break;
+    case RS_SAMPLER_MIN_FILTER:
+        ss->mMinFilter = value;
+        break;
+    case RS_SAMPLER_WRAP_S:
+        ss->mWrapS = value;
+        break;
+    case RS_SAMPLER_WRAP_T:
+        ss->mWrapT = value;
+        break;
+    case RS_SAMPLER_WRAP_R:
+        ss->mWrapR = value;
+        break;
+    }
+
+}
+
+RsSampler rsi_SamplerCreate(Context *rsc)
+{
+    SamplerState * ss = &rsc->mStateSampler;
+
+
+    Sampler * s = new Sampler(ss->mMagFilter, 
+                              ss->mMinFilter, 
+                              ss->mWrapS, 
+                              ss->mWrapT,
+                              ss->mWrapR);
+    return s;
+}
+
+}}