Seperate GL from RS program store.

Change-Id: I0eae9c0699845af8e8611b065e70738cc9f2b15c

1 files changed, 204 insertions, 0 deletions

diff --git a/driver/rsdProgramStore.cpp b/driver/rsdProgramStore.cpp
new file mode 100644
index 00000000..e591453c
--- /dev/null
+++ b/driver/rsdProgramStore.cpp
@@ -0,0 +1,204 @@
+/*
+ * Copyright (C) 2011 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 "rsdCore.h"
+#include "rsdProgramStore.h"
+
+#include "rsContext.h"
+#include "rsProgramStore.h"
+
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+
+
+using namespace android;
+using namespace android::renderscript;
+
+struct DrvProgramStore {
+    GLenum blendSrc;
+    GLenum blendDst;
+    bool blendEnable;
+
+    GLenum depthFunc;
+    bool depthTestEnable;
+};
+
+bool rsdProgramStoreInit(const Context *rsc, const ProgramStore *ps) {
+    DrvProgramStore *drv = (DrvProgramStore *)calloc(1, sizeof(DrvProgramStore));
+    if (drv == NULL) {
+        return false;
+    }
+
+    ps->mHal.drv = drv;
+    drv->depthTestEnable = true;
+
+    switch (ps->mHal.state.depthFunc) {
+    case RS_DEPTH_FUNC_ALWAYS:
+        drv->depthTestEnable = false;
+        drv->depthFunc = GL_ALWAYS;
+        break;
+    case RS_DEPTH_FUNC_LESS:
+        drv->depthFunc = GL_LESS;
+        break;
+    case RS_DEPTH_FUNC_LEQUAL:
+        drv->depthFunc = GL_LEQUAL;
+        break;
+    case RS_DEPTH_FUNC_GREATER:
+        drv->depthFunc = GL_GREATER;
+        break;
+    case RS_DEPTH_FUNC_GEQUAL:
+        drv->depthFunc = GL_GEQUAL;
+        break;
+    case RS_DEPTH_FUNC_EQUAL:
+        drv->depthFunc = GL_EQUAL;
+        break;
+    case RS_DEPTH_FUNC_NOTEQUAL:
+        drv->depthFunc = GL_NOTEQUAL;
+        break;
+    default:
+        LOGE("Unknown depth function.");
+        goto error;
+    }
+
+
+
+    drv->blendEnable = true;
+    if ((ps->mHal.state.blendSrc == RS_BLEND_SRC_ONE) &&
+        (ps->mHal.state.blendDst == RS_BLEND_DST_ZERO)) {
+        drv->blendEnable = false;
+    }
+
+    switch (ps->mHal.state.blendSrc) {
+    case RS_BLEND_SRC_ZERO:
+        drv->blendSrc = GL_ZERO;
+        break;
+    case RS_BLEND_SRC_ONE:
+        drv->blendSrc = GL_ONE;
+        break;
+    case RS_BLEND_SRC_DST_COLOR:
+        drv->blendSrc = GL_DST_COLOR;
+        break;
+    case RS_BLEND_SRC_ONE_MINUS_DST_COLOR:
+        drv->blendSrc = GL_ONE_MINUS_DST_COLOR;
+        break;
+    case RS_BLEND_SRC_SRC_ALPHA:
+        drv->blendSrc = GL_SRC_ALPHA;
+        break;
+    case RS_BLEND_SRC_ONE_MINUS_SRC_ALPHA:
+        drv->blendSrc = GL_ONE_MINUS_SRC_ALPHA;
+        break;
+    case RS_BLEND_SRC_DST_ALPHA:
+        drv->blendSrc = GL_DST_ALPHA;
+        break;
+    case RS_BLEND_SRC_ONE_MINUS_DST_ALPHA:
+        drv->blendSrc = GL_ONE_MINUS_DST_ALPHA;
+        break;
+    case RS_BLEND_SRC_SRC_ALPHA_SATURATE:
+        drv->blendSrc = GL_SRC_ALPHA_SATURATE;
+        break;
+    default:
+        LOGE("Unknown blend src mode.");
+        goto error;
+    }
+
+    switch (ps->mHal.state.blendDst) {
+    case RS_BLEND_DST_ZERO:
+        drv->blendDst = GL_ZERO;
+        break;
+    case RS_BLEND_DST_ONE:
+        drv->blendDst = GL_ONE;
+        break;
+    case RS_BLEND_DST_SRC_COLOR:
+        drv->blendDst = GL_SRC_COLOR;
+        break;
+    case RS_BLEND_DST_ONE_MINUS_SRC_COLOR:
+        drv->blendDst = GL_ONE_MINUS_SRC_COLOR;
+        break;
+    case RS_BLEND_DST_SRC_ALPHA:
+        drv->blendDst = GL_SRC_ALPHA;
+        break;
+    case RS_BLEND_DST_ONE_MINUS_SRC_ALPHA:
+        drv->blendDst = GL_ONE_MINUS_SRC_ALPHA;
+        break;
+    case RS_BLEND_DST_DST_ALPHA:
+        drv->blendDst = GL_DST_ALPHA;
+        break;
+    case RS_BLEND_DST_ONE_MINUS_DST_ALPHA:
+        drv->blendDst = GL_ONE_MINUS_DST_ALPHA;
+        break;
+    default:
+        LOGE("Unknown blend dst mode.");
+        goto error;
+    }
+
+    return true;
+
+error:
+    free(drv);
+    ps->mHal.drv = NULL;
+    return false;
+}
+
+void rsdProgramStoreSetActive(const Context *rsc, const ProgramStore *ps) {
+    DrvProgramStore *drv = (DrvProgramStore *)ps->mHal.drv;
+
+    glColorMask(ps->mHal.state.colorRWriteEnable,
+                ps->mHal.state.colorGWriteEnable,
+                ps->mHal.state.colorBWriteEnable,
+                ps->mHal.state.colorAWriteEnable);
+
+    if (drv->blendEnable) {
+        glEnable(GL_BLEND);
+        glBlendFunc(drv->blendSrc, drv->blendDst);
+    } else {
+        glDisable(GL_BLEND);
+    }
+
+    if (rsc->mUserSurfaceConfig.depthMin > 0) {
+        glDepthMask(ps->mHal.state.depthWriteEnable);
+        if (drv->depthTestEnable || ps->mHal.state.depthWriteEnable) {
+            glEnable(GL_DEPTH_TEST);
+            glDepthFunc(drv->depthFunc);
+        } else {
+            glDisable(GL_DEPTH_TEST);
+        }
+    } else {
+        glDepthMask(false);
+        glDisable(GL_DEPTH_TEST);
+    }
+
+    /*
+    if (rsc->mUserSurfaceConfig.stencilMin > 0) {
+    } else {
+        glStencilMask(0);
+        glDisable(GL_STENCIL_TEST);
+    }
+    */
+
+    if (ps->mHal.state.ditherEnable) {
+        glEnable(GL_DITHER);
+    } else {
+        glDisable(GL_DITHER);
+    }
+}
+
+void rsdProgramStoreDestroy(const Context *rsc, const ProgramStore *ps) {
+    free(ps->mHal.drv);
+    ps->mHal.drv = NULL;
+}
+
+