--- /dev/null
+/*
+* 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 "GLESv2Decoder.h"
+
+#include <EGL/egl.h>
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+static inline void* SafePointerFromUInt(GLuint value) {
+ return (void*)(uintptr_t)value;
+}
+
+GLESv2Decoder::GLESv2Decoder()
+{
+ m_contextData = NULL;
+ m_GL2library = NULL;
+}
+
+GLESv2Decoder::~GLESv2Decoder()
+{
+ delete m_GL2library;
+}
+
+void *GLESv2Decoder::s_getProc(const char *name, void *userData)
+{
+ GLESv2Decoder *ctx = (GLESv2Decoder *) 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 GLESv2Decoder::initGL(get_proc_func_t getProcFunc, void *getProcFuncData)
+{
+ this->initDispatchByName(getProcFunc, getProcFuncData);
+
+ glGetCompressedTextureFormats = s_glGetCompressedTextureFormats;
+ glVertexAttribPointerData = s_glVertexAttribPointerData;
+ glVertexAttribPointerOffset = s_glVertexAttribPointerOffset;
+
+ glDrawElementsOffset = s_glDrawElementsOffset;
+ glDrawElementsData = s_glDrawElementsData;
+ glShaderString = s_glShaderString;
+ glFinishRoundTrip = s_glFinishRoundTrip;
+ return 0;
+
+}
+
+int GLESv2Decoder::s_glFinishRoundTrip(void *self)
+{
+ GLESv2Decoder *ctx = (GLESv2Decoder *)self;
+ ctx->glFinish();
+ return 0;
+}
+
+void GLESv2Decoder::s_glGetCompressedTextureFormats(void *self, int count, GLint *formats)
+{
+ GLESv2Decoder *ctx = (GLESv2Decoder *) 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 GLESv2Decoder::s_glVertexAttribPointerData(void *self, GLuint indx, GLint size, GLenum type,
+ GLboolean normalized, GLsizei stride, void * data, GLuint datalen)
+{
+ GLESv2Decoder *ctx = (GLESv2Decoder *) 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 GLESv2Decoder::s_glVertexAttribPointerOffset(void *self, GLuint indx, GLint size, GLenum type,
+ GLboolean normalized, GLsizei stride, GLuint data)
+{
+ GLESv2Decoder *ctx = (GLESv2Decoder *) self;
+ ctx->glVertexAttribPointer(indx, size, type, normalized, stride, SafePointerFromUInt(data));
+}
+
+
+void GLESv2Decoder::s_glDrawElementsData(void *self, GLenum mode, GLsizei count, GLenum type, void * data, GLuint datalen)
+{
+ GLESv2Decoder *ctx = (GLESv2Decoder *)self;
+ ctx->glDrawElements(mode, count, type, data);
+}
+
+
+void GLESv2Decoder::s_glDrawElementsOffset(void *self, GLenum mode, GLsizei count, GLenum type, GLuint offset)
+{
+ GLESv2Decoder *ctx = (GLESv2Decoder *)self;
+ ctx->glDrawElements(mode, count, type, SafePointerFromUInt(offset));
+}
+
+void GLESv2Decoder::s_glShaderString(void *self, GLuint shader, const GLchar* string, GLsizei len)
+{
+ GLESv2Decoder *ctx = (GLESv2Decoder *)self;
+ ctx->glShaderSource(shader, 1, &string, NULL);
+}