Emulator opengl - Opengl ES 1.1 encoder
This change the opengl target side encoder library (libGLESv1_enc) The library includes api definition files for 'emugen' code generation tool and a serrounding code to handle opengl specific sematics (such as client state) tracking Change-Id: I8708b945c8c9c7fbe06147b703bdee27a576c7a0
This commit is contained in:
Jacky Romano
419
tools/emulator/opengl/system/GLESv1_enc/GLEncoder.cpp
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419
tools/emulator/opengl/system/GLESv1_enc/GLEncoder.cpp
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@@ -0,0 +1,419 @@
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/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "GLEncoder.h"
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#include "glUtils.h"
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#include "FixedBuffer.h"
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#include <cutils/log.h>
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#include <assert.h>
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static GLubyte *gVendorString= (GLubyte *) "Android";
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static GLubyte *gRendererString= (GLubyte *) "Android HW-GLES 1.0";
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static GLubyte *gVersionString= (GLubyte *) "OpenGL ES-CM 1.0";
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static GLubyte *gExtensionsString= (GLubyte *) ""; // no extensions at this point;
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GLint * GLEncoder::getCompressedTextureFormats()
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{
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if (m_compressedTextureFormats == NULL) {
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this->glGetIntegerv(this, GL_NUM_COMPRESSED_TEXTURE_FORMATS,
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&m_num_compressedTextureFormats);
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if (m_num_compressedTextureFormats > 0) {
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// get number of texture formats;
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m_compressedTextureFormats = new GLint[m_num_compressedTextureFormats];
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this->glGetCompressedTextureFormats(this, m_num_compressedTextureFormats, m_compressedTextureFormats);
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}
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}
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return m_compressedTextureFormats;
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}
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void GLEncoder::s_glGetIntegerv(void *self, GLenum param, GLint *ptr)
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{
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GLEncoder *ctx = (GLEncoder *)self;
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if (param == GL_COMPRESSED_TEXTURE_FORMATS) {
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GLint * compressedTextureFormats = ctx->getCompressedTextureFormats();
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if (ctx->m_num_compressedTextureFormats > 0 && compressedTextureFormats != NULL) {
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memcpy(ptr, compressedTextureFormats, ctx->m_num_compressedTextureFormats * sizeof(GLint));
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}
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} else {
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ctx->m_glGetIntegerv_enc(self, param, ptr);
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}
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}
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void GLEncoder::s_glGetFloatv(void *self, GLenum param, GLfloat *ptr)
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{
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GLEncoder *ctx = (GLEncoder *)self;
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if (param == GL_COMPRESSED_TEXTURE_FORMATS) {
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GLint * compressedTextureFormats = ctx->getCompressedTextureFormats();
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if (ctx->m_num_compressedTextureFormats > 0 && compressedTextureFormats != NULL) {
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for (int i = 0; i < ctx->m_num_compressedTextureFormats; i++) {
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ptr[i] = (GLfloat) compressedTextureFormats[i];
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}
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}
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} else {
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ctx->m_glGetFloatv_enc(self, param, ptr);
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}
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}
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void GLEncoder::s_glGetFixedv(void *self, GLenum param, GLfixed *ptr)
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{
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GLEncoder *ctx = (GLEncoder *)self;
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if (param == GL_COMPRESSED_TEXTURE_FORMATS) {
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GLint * compressedTextureFormats = ctx->getCompressedTextureFormats();
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if (ctx->m_num_compressedTextureFormats > 0 && compressedTextureFormats != NULL) {
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for (int i = 0; i < ctx->m_num_compressedTextureFormats; i++) {
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ptr[i] = compressedTextureFormats[i] << 16;
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}
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}
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} else {
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ctx->m_glGetFixedv_enc(self, param, ptr);
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}
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}
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void GLEncoder::s_glGetBooleanv(void *self, GLenum param, GLboolean *ptr)
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{
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GLEncoder *ctx = (GLEncoder *)self;
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if (param == GL_COMPRESSED_TEXTURE_FORMATS) {
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// ignore the command, although we should have generated a GLerror;
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} else {
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ctx->m_glGetBooleanv_enc(self, param, ptr);
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}
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}
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void GLEncoder::s_glFlush(void *self)
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{
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GLEncoder *ctx = (GLEncoder *)self;
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ctx->m_glFlush_enc(self);
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ctx->m_stream->flush();
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}
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GLubyte *GLEncoder::s_glGetString(void *self, GLenum name)
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{
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GLubyte *retval = (GLubyte *) "";
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switch(name) {
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case GL_VENDOR:
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retval = gVendorString;
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break;
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case GL_RENDERER:
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retval = gRendererString;
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break;
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case GL_VERSION:
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retval = gVersionString;
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break;
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case GL_EXTENSIONS:
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retval = gExtensionsString;
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break;
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}
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return retval;
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}
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void GLEncoder::s_glPixelStorei(void *self, GLenum param, GLint value)
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{
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GLEncoder *ctx = (GLEncoder *)self;
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ctx->m_glPixelStorei_enc(ctx, param, value);
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assert(m_state != NULL);
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ctx->m_state->setPixelStore(param, value);
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}
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void GLEncoder::s_glVertexPointer(void *self, int size, GLenum type, GLsizei stride, void *data)
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{
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GLEncoder *ctx = (GLEncoder *)self;
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assert(m_state != NULL);
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ctx->m_state->setState(GLClientState::VERTEX_LOCATION, size, type, stride, data);
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}
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void GLEncoder::s_glNormalPointer(void *self, GLenum type, GLsizei stride, void *data)
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{
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GLEncoder *ctx = (GLEncoder *)self;
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assert(m_state != NULL);
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ctx->m_state->setState(GLClientState::NORMAL_LOCATION, 3, type, stride, data);
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}
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void GLEncoder::s_glColorPointer(void *self, int size, GLenum type, GLsizei stride, void *data)
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{
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GLEncoder *ctx = (GLEncoder *)self;
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assert(m_state != NULL);
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ctx->m_state->setState(GLClientState::COLOR_LOCATION, size, type, stride, data);
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}
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void GLEncoder::s_glPointsizePointer(void *self, GLenum type, GLsizei stride, void *data)
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{
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GLEncoder *ctx = (GLEncoder *)self;
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assert(m_state != NULL);
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ctx->m_state->setState(GLClientState::POINTSIZE_LOCATION, 1, type, stride, data);
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}
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void GLEncoder::s_glClientActiveTexture(void *self, GLenum texture)
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{
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GLEncoder *ctx = (GLEncoder *)self;
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assert(m_state != NULL);
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ctx->m_state->setActiveTexture(texture - GL_TEXTURE0);
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}
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void GLEncoder::s_glTexcoordPointer(void *self, int size, GLenum type, GLsizei stride, void *data)
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{
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GLEncoder *ctx = (GLEncoder *)self;
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assert(m_state != NULL);
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int loc = ctx->m_state->getLocation(GL_TEXTURE_COORD_ARRAY);
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ctx->m_state->setState(loc, size, type, stride, data);
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}
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void GLEncoder::s_glEnableClientState(void *self, GLenum state)
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{
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GLEncoder *ctx = (GLEncoder *) self;
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assert(m_state != NULL);
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int loc = ctx->m_state->getLocation(state);
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ctx->m_state->enable(loc, 1);
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}
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void GLEncoder::s_glDisableClientState(void *self, GLenum state)
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{
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GLEncoder *ctx = (GLEncoder *) self;
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assert(m_state != NULL);
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int loc = ctx->m_state->getLocation(state);
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ctx->m_state->enable(loc, 0);
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}
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void GLEncoder::s_glBindBuffer(void *self, GLenum target, GLuint id)
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{
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GLEncoder *ctx = (GLEncoder *) self;
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assert(m_state != NULL);
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ctx->m_state->bindBuffer(target, id);
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// TODO set error state if needed;
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ctx->m_glBindBuffer_enc(self, target, id);
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}
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void GLEncoder::sendVertexData(unsigned int first, unsigned int count)
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{
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assert(m_state != NULL);
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for (int i = 0; i < GLClientState::LAST_LOCATION; i++) {
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bool enableDirty;
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const GLClientState::VertexAttribState *state = m_state->getStateAndEnableDirty(i, &enableDirty);
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// do not process if state not valid
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if (!state) continue;
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// do not send disable state if state was already disabled
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if (!enableDirty && !state->enabled) continue;
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if ( i >= GLClientState::TEXCOORD0_LOCATION &&
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i <= GLClientState::TEXCOORD7_LOCATION ) {
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m_glClientActiveTexture_enc(this, GL_TEXTURE0 + i - GLClientState::TEXCOORD0_LOCATION);
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}
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if (state->enabled) {
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if (enableDirty)
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m_glEnableClientState_enc(this, state->glConst);
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unsigned int datalen = state->elementSize * count;
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int stride = state->stride;
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if (stride == 0) stride = state->elementSize;
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int firstIndex = stride * first;
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if (state->bufferObject == 0) {
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switch(i) {
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case GLClientState::VERTEX_LOCATION:
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this->glVertexPointerData(this, state->size, state->type, state->stride,
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(unsigned char *)state->data + firstIndex, datalen);
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break;
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case GLClientState::NORMAL_LOCATION:
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this->glNormalPointerData(this, state->type, state->stride,
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(unsigned char *)state->data + firstIndex, datalen);
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break;
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case GLClientState::COLOR_LOCATION:
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this->glColorPointerData(this, state->size, state->type, state->stride,
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(unsigned char *)state->data + firstIndex, datalen);
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break;
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case GLClientState::TEXCOORD0_LOCATION:
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case GLClientState::TEXCOORD1_LOCATION:
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case GLClientState::TEXCOORD2_LOCATION:
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case GLClientState::TEXCOORD3_LOCATION:
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case GLClientState::TEXCOORD4_LOCATION:
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case GLClientState::TEXCOORD5_LOCATION:
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case GLClientState::TEXCOORD6_LOCATION:
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case GLClientState::TEXCOORD7_LOCATION:
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this->glTexCoordPointerData(this, i - GLClientState::TEXCOORD0_LOCATION, state->size, state->type, state->stride,
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(unsigned char *)state->data + firstIndex, datalen);
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break;
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case GLClientState::POINTSIZE_LOCATION:
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this->glPointSizePointerData(this, state->type, state->stride,
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(unsigned char *) state->data + firstIndex, datalen);
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break;
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}
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} else {
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this->glBindBuffer(this, GL_ARRAY_BUFFER, state->bufferObject);
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switch(i) {
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case GLClientState::VERTEX_LOCATION:
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this->glVertexPointerOffset(this, state->size, state->type, state->stride,
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(GLuint)state->data + firstIndex);
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break;
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case GLClientState::NORMAL_LOCATION:
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this->glNormalPointerOffset(this, state->type, state->stride,
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(GLuint) state->data + firstIndex);
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break;
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case GLClientState::POINTSIZE_LOCATION:
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this->glPointSizePointerOffset(this, state->type, state->stride,
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(GLuint) state->data + firstIndex);
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break;
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case GLClientState::COLOR_LOCATION:
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this->glColorPointerOffset(this, state->size, state->type, state->stride,
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(GLuint) state->data + firstIndex);
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break;
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case GLClientState::TEXCOORD0_LOCATION:
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case GLClientState::TEXCOORD1_LOCATION:
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case GLClientState::TEXCOORD2_LOCATION:
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case GLClientState::TEXCOORD3_LOCATION:
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case GLClientState::TEXCOORD4_LOCATION:
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case GLClientState::TEXCOORD5_LOCATION:
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case GLClientState::TEXCOORD6_LOCATION:
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case GLClientState::TEXCOORD7_LOCATION:
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this->glTexCoordPointerOffset(this, state->size, state->type, state->stride,
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(GLuint) state->data + firstIndex);
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break;
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}
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}
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} else {
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this->m_glDisableClientState_enc(this, state->glConst);
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}
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}
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}
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void GLEncoder::s_glDrawArrays(void *self, GLenum mode, GLint first, GLsizei count)
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{
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GLEncoder *ctx = (GLEncoder *)self;
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ctx->sendVertexData(first, count);
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ctx->m_glDrawArrays_enc(ctx, mode, /*first*/ 0, count);
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}
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void GLEncoder::s_glDrawElements(void *self, GLenum mode, GLsizei count, GLenum type, void *indices)
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{
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GLEncoder *ctx = (GLEncoder *)self;
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assert(m_state != NULL);
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bool has_immediate_arrays = false;
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bool has_indirect_arrays = false;
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for (int i = 0; i < GLClientState::LAST_LOCATION; i++) {
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const GLClientState::VertexAttribState *state = ctx->m_state->getState(i);
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if (state->enabled) {
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if (state->bufferObject != 0) {
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has_indirect_arrays = true;
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} else {
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has_immediate_arrays = true;
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}
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}
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}
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if (!has_immediate_arrays && !has_indirect_arrays) {
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LOGE("glDrawElements: no data bound to the command - ignoring\n");
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return;
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}
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if (ctx->m_state->currentIndexVbo() != 0) {
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if (!has_immediate_arrays) {
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ctx->sendVertexData(0, count);
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ctx->glDrawElementsOffset(ctx, mode, count, type, (GLuint)indices);
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} else {
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LOGE("glDrawElements: indirect index arrays, with immidate-mode data array is not supported\n");
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}
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} else {
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void *adjustedIndices = indices;
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int minIndex = 0, maxIndex = 0;
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switch(type) {
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case GL_BYTE:
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case GL_UNSIGNED_BYTE:
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ctx->minmax<unsigned char>((unsigned char *)indices, count, &minIndex, &maxIndex);
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if (minIndex != 0) {
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adjustedIndices = ctx->m_fixedBuffer.alloc(glSizeof(type) * count);
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ctx->shiftIndices<unsigned char>((unsigned char *)indices,
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(unsigned char *)adjustedIndices,
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count, -minIndex);
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}
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break;
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case GL_SHORT:
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case GL_UNSIGNED_SHORT:
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ctx->minmax<unsigned short>((unsigned short *)indices, count, &minIndex, &maxIndex);
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if (minIndex != 0) {
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adjustedIndices = ctx->m_fixedBuffer.alloc(glSizeof(type) * count);
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ctx->shiftIndices<unsigned short>((unsigned short *)indices,
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(unsigned short *)adjustedIndices,
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count, -minIndex);
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}
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break;
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default:
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LOGE("unsupported index buffer type %d\n", type);
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}
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if (has_indirect_arrays || 1) {
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ctx->sendVertexData(minIndex, maxIndex - minIndex + 1);
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ctx->glDrawElementsData(ctx, mode, count, type, adjustedIndices,
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count * glSizeof(type));
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// XXX - OPTIMIZATION (see the other else branch) should be implemented
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if(!has_indirect_arrays) {
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LOGD("unoptimized drawelements !!!\n");
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}
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} else {
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// we are all direct arrays and immidate mode index array -
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// rebuild the arrays and the index array;
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LOGE("glDrawElements: direct index & direct buffer data - will be implemented in later versions;\n");
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}
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}
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}
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GLEncoder::GLEncoder(IOStream *stream) : gl_encoder_context_t(stream)
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{
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m_state = NULL;
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m_compressedTextureFormats = NULL;
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// overrides;
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m_glFlush_enc = set_glFlush(s_glFlush);
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m_glPixelStorei_enc = set_glPixelStorei(s_glPixelStorei);
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m_glVertexPointer_enc = set_glVertexPointer(s_glVertexPointer);
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m_glNormalPointer_enc = set_glNormalPointer(s_glNormalPointer);
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m_glColorPointer_enc = set_glColorPointer(s_glColorPointer);
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m_glPointSizePointerOES_enc = set_glPointSizePointerOES(s_glPointsizePointer);
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m_glClientActiveTexture_enc = set_glClientActiveTexture(s_glClientActiveTexture);
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m_glTexCoordPointer_enc = set_glTexCoordPointer(s_glTexcoordPointer);
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m_glGetIntegerv_enc = set_glGetIntegerv(s_glGetIntegerv);
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m_glGetFloatv_enc = set_glGetFloatv(s_glGetFloatv);
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m_glGetBooleanv_enc = set_glGetBooleanv(s_glGetBooleanv);
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m_glGetFixedv_enc = set_glGetFixedv(s_glGetFixedv);
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m_glBindBuffer_enc = set_glBindBuffer(s_glBindBuffer);
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m_glEnableClientState_enc = set_glEnableClientState(s_glEnableClientState);
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m_glDisableClientState_enc = set_glDisableClientState(s_glDisableClientState);
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m_glDrawArrays_enc = set_glDrawArrays(s_glDrawArrays);
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m_glDrawElements_enc = set_glDrawElements(s_glDrawElements);
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set_glGetString(s_glGetString);
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}
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GLEncoder::~GLEncoder()
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{
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delete m_compressedTextureFormats;
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}
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size_t GLEncoder::pixelDataSize(GLsizei width, GLsizei height, GLenum format, GLenum type, int pack)
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{
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assert(m_state != NULL);
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return m_state->pixelDataSize(width, height, format, type, pack);
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}
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