1 files changed, 139 insertions, 0 deletions
diff --git a/emulator/opengl/host/libs/GLESv2_dec/GL2Decoder.cpp b/emulator/opengl/host/libs/GLESv2_dec/GL2Decoder.cpp
new file mode 100644
index 0000000..a777c50
--- /dev/null
+++ b/emulator/opengl/host/libs/GLESv2_dec/GL2Decoder.cpp
@@ -0,0 +1,139 @@
+/*
+* Copyright 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 "GL2Decoder.h"
+#include <EGL/egl.h>
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+
+GL2Decoder::GL2Decoder()
+{
+    m_contextData = NULL;
+    m_GL2library = NULL;
+}
+
+GL2Decoder::~GL2Decoder()
+{
+    delete m_GL2library;
+}
+
+void *GL2Decoder::s_getProc(const char *name, void *userData)
+{
+    GL2Decoder *ctx = (GL2Decoder *) userData;
+
+    if (ctx == NULL || ctx->m_GL2library == NULL) {
+        return NULL;
+    }
+
+    void *func = NULL;
+#ifdef USE_EGL_GETPROCADDRESS
+    func = (void *) eglGetProcAddress(name);
+#endif
+    if (func == NULL) {
+        func = (void *) ctx->m_GL2library->findSymbol(name);
+    }
+    return func;
+}
+
+int GL2Decoder::initGL(get_proc_func_t getProcFunc, void *getProcFuncData)
+{
+    if (getProcFunc == NULL) {
+        const char *libname = GLES2_LIBNAME;
+        if (getenv(GLES2_LIBNAME_VAR) != NULL) {
+            libname = getenv(GLES2_LIBNAME_VAR);
+        }
+
+        m_GL2library = osUtils::dynLibrary::open(libname);
+        if (m_GL2library == NULL) {
+            fprintf(stderr, "%s: Couldn't find %s \n", __FUNCTION__, libname);
+            return -1;
+        }
+        this->initDispatchByName(s_getProc, this);
+    } else {
+        this->initDispatchByName(getProcFunc, getProcFuncData);
+    }
+
+    set_glGetCompressedTextureFormats(s_glGetCompressedTextureFormats);
+    set_glVertexAttribPointerData(s_glVertexAttribPointerData);
+    set_glVertexAttribPointerOffset(s_glVertexAttribPointerOffset);
+
+    set_glDrawElementsOffset(s_glDrawElementsOffset);
+    set_glDrawElementsData(s_glDrawElementsData);
+    set_glShaderString(s_glShaderString);
+    set_glFinishRoundTrip(s_glFinishRoundTrip);
+    return 0;
+
+}
+
+int GL2Decoder::s_glFinishRoundTrip(void *self)
+{
+    GL2Decoder *ctx = (GL2Decoder *)self;
+    ctx->glFinish();
+    return 0;
+}
+
+void GL2Decoder::s_glGetCompressedTextureFormats(void *self, int count, GLint *formats)
+{
+    GL2Decoder *ctx = (GL2Decoder *) self;
+
+    int nFormats;
+    ctx->glGetIntegerv(GL_NUM_COMPRESSED_TEXTURE_FORMATS, &nFormats);
+    if (nFormats > count) {
+        fprintf(stderr, "%s: GetCompressedTextureFormats: The requested number of formats does not match the number that is reported by OpenGL\n", __FUNCTION__);
+    } else {
+        ctx->glGetIntegerv(GL_COMPRESSED_TEXTURE_FORMATS, formats);
+    }
+}
+
+void GL2Decoder::s_glVertexAttribPointerData(void *self, GLuint indx, GLint size, GLenum type,
+                                             GLboolean normalized, GLsizei stride,  void * data, GLuint datalen)
+{
+    GL2Decoder *ctx = (GL2Decoder *) self;
+    if (ctx->m_contextData != NULL) {
+        ctx->m_contextData->storePointerData(indx, data, datalen);
+        // note - the stride of the data is always zero when it comes out of the codec.
+        // See gl2.attrib for the packing function call.
+        ctx->glVertexAttribPointer(indx, size, type, normalized, 0, ctx->m_contextData->pointerData(indx));
+    }
+}
+
+void GL2Decoder::s_glVertexAttribPointerOffset(void *self, GLuint indx, GLint size, GLenum type,
+                                               GLboolean normalized, GLsizei stride,  GLuint data)
+{
+    GL2Decoder *ctx = (GL2Decoder *) self;
+    ctx->glVertexAttribPointer(indx, size, type, normalized, stride, (GLvoid *)data);
+}
+
+
+void GL2Decoder::s_glDrawElementsData(void *self, GLenum mode, GLsizei count, GLenum type, void * data, GLuint datalen)
+{
+    GL2Decoder *ctx = (GL2Decoder *)self;
+    ctx->glDrawElements(mode, count, type, data);
+}
+
+
+void GL2Decoder::s_glDrawElementsOffset(void *self, GLenum mode, GLsizei count, GLenum type, GLuint offset)
+{
+    GL2Decoder *ctx = (GL2Decoder *)self;
+    ctx->glDrawElements(mode, count, type, (void *)offset);
+}
+
+void GL2Decoder::s_glShaderString(void *self, GLuint shader, const GLchar* string, GLsizei len)
+{
+    GL2Decoder *ctx = (GL2Decoder *)self;
+    ctx->glShaderSource(shader, 1, &string, NULL);
+}