/*
* 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 "GLEncoder.h"
#include "glUtils.h"
#include "FixedBuffer.h"
#include <cutils/log.h>
#include <assert.h>
#ifndef MIN
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#endif
static GLubyte *gVendorString= (GLubyte *) "Android";
static GLubyte *gRendererString= (GLubyte *) "Android HW-GLES 1.0";
static GLubyte *gVersionString= (GLubyte *) "OpenGL ES-CM 1.0";
static GLubyte *gExtensionsString= (GLubyte *) ""; // no extensions at this point;
#define SET_ERROR_IF(condition,err) if((condition)) { \
ALOGE("%s:%s:%d GL error 0x%x\n", __FILE__, __FUNCTION__, __LINE__, err); \
ctx->setError(err); \
return; \
}
#define RET_AND_SET_ERROR_IF(condition,err,ret) if((condition)) { \
ALOGE("%s:%s:%d GL error 0x%x\n", __FILE__, __FUNCTION__, __LINE__, err); \
ctx->setError(err); \
return ret; \
}
GLenum GLEncoder::s_glGetError(void * self)
{
GLEncoder *ctx = (GLEncoder *)self;
GLenum err = ctx->getError();
if(err != GL_NO_ERROR) {
ctx->setError(GL_NO_ERROR);
return err;
}
return ctx->m_glGetError_enc(self);
}
GLint * GLEncoder::getCompressedTextureFormats()
{
if (m_compressedTextureFormats == NULL) {
this->glGetIntegerv(this, GL_NUM_COMPRESSED_TEXTURE_FORMATS,
&m_num_compressedTextureFormats);
if (m_num_compressedTextureFormats > 0) {
// get number of texture formats;
m_compressedTextureFormats = new GLint[m_num_compressedTextureFormats];
this->glGetCompressedTextureFormats(this, m_num_compressedTextureFormats, m_compressedTextureFormats);
}
}
return m_compressedTextureFormats;
}
void GLEncoder::s_glGetIntegerv(void *self, GLenum param, GLint *ptr)
{
GLEncoder *ctx = (GLEncoder *)self;
assert(ctx->m_state != NULL);
GLClientState* state = ctx->m_state;
switch (param) {
case GL_COMPRESSED_TEXTURE_FORMATS: {
GLint * compressedTextureFormats = ctx->getCompressedTextureFormats();
if (ctx->m_num_compressedTextureFormats > 0 &&
compressedTextureFormats != NULL) {
memcpy(ptr, compressedTextureFormats,
ctx->m_num_compressedTextureFormats * sizeof(GLint));
}
break;
}
case GL_MAX_TEXTURE_UNITS:
ctx->m_glGetIntegerv_enc(self, param, ptr);
*ptr = MIN(*ptr, GLClientState::MAX_TEXTURE_UNITS);
break;
case GL_TEXTURE_BINDING_2D:
*ptr = state->getBoundTexture(GL_TEXTURE_2D);
break;
case GL_TEXTURE_BINDING_EXTERNAL_OES:
*ptr = state->getBoundTexture(GL_TEXTURE_EXTERNAL_OES);
break;
default:
if (!state->getClientStateParameter<GLint>(param,ptr)) {
ctx->m_glGetIntegerv_enc(self, param, ptr);
}
break;
}
}
void GLEncoder::s_glGetFloatv(void *self, GLenum param, GLfloat *ptr)
{
GLEncoder *ctx = (GLEncoder *)self;
assert(ctx->m_state != NULL);
GLClientState* state = ctx->m_state;
switch (param) {
case GL_COMPRESSED_TEXTURE_FORMATS: {
GLint * compressedTextureFormats = ctx->getCompressedTextureFormats();
if (ctx->m_num_compressedTextureFormats > 0 &&
compressedTextureFormats != NULL) {
for (int i = 0; i < ctx->m_num_compressedTextureFormats; i++) {
ptr[i] = (GLfloat) compressedTextureFormats[i];
}
}
break;
}
case GL_MAX_TEXTURE_UNITS:
ctx->m_glGetFloatv_enc(self, param, ptr);
*ptr = MIN(*ptr, (GLfloat)GLClientState::MAX_TEXTURE_UNITS);
break;
case GL_TEXTURE_BINDING_2D:
*ptr = (GLfloat)state->getBoundTexture(GL_TEXTURE_2D);
break;
case GL_TEXTURE_BINDING_EXTERNAL_OES:
*ptr = (GLfloat)state->getBoundTexture(GL_TEXTURE_EXTERNAL_OES);
break;
default:
if (!state->getClientStateParameter<GLfloat>(param,ptr)) {
ctx->m_glGetFloatv_enc(self, param, ptr);
}
break;
}
}
void GLEncoder::s_glGetFixedv(void *self, GLenum param, GLfixed *ptr)
{
GLEncoder *ctx = (GLEncoder *)self;
assert(ctx->m_state != NULL);
GLClientState* state = ctx->m_state;
switch (param) {
case GL_COMPRESSED_TEXTURE_FORMATS: {
GLint * compressedTextureFormats = ctx->getCompressedTextureFormats();
if (ctx->m_num_compressedTextureFormats > 0 &&
compressedTextureFormats != NULL) {
for (int i = 0; i < ctx->m_num_compressedTextureFormats; i++) {
ptr[i] = compressedTextureFormats[i] << 16;
}
}
break;
}
case GL_MAX_TEXTURE_UNITS:
ctx->m_glGetFixedv_enc(self, param, ptr);
*ptr = MIN(*ptr, GLClientState::MAX_TEXTURE_UNITS << 16);
break;
case GL_TEXTURE_BINDING_2D:
*ptr = state->getBoundTexture(GL_TEXTURE_2D) << 16;
break;
case GL_TEXTURE_BINDING_EXTERNAL_OES:
*ptr = state->getBoundTexture(GL_TEXTURE_EXTERNAL_OES) << 16;
break;
default:
if (!state->getClientStateParameter<GLfixed>(param,ptr)) {
ctx->m_glGetFixedv_enc(self, param, ptr);
}
break;
}
}
void GLEncoder::s_glGetBooleanv(void *self, GLenum param, GLboolean *ptr)
{
GLEncoder *ctx = (GLEncoder *)self;
assert(ctx->m_state != NULL);
GLClientState* state = ctx->m_state;
switch (param) {
case GL_COMPRESSED_TEXTURE_FORMATS: {
GLint* compressedTextureFormats = ctx->getCompressedTextureFormats();
if (ctx->m_num_compressedTextureFormats > 0 &&
compressedTextureFormats != NULL) {
for (int i = 0; i < ctx->m_num_compressedTextureFormats; i++) {
ptr[i] = compressedTextureFormats[i] != 0 ? GL_TRUE : GL_FALSE;
}
}
break;
}
case GL_TEXTURE_BINDING_2D:
*ptr = state->getBoundTexture(GL_TEXTURE_2D) != 0 ? GL_TRUE : GL_FALSE;
break;
case GL_TEXTURE_BINDING_EXTERNAL_OES:
*ptr = state->getBoundTexture(GL_TEXTURE_EXTERNAL_OES) != 0
? GL_TRUE : GL_FALSE;
break;
default:
if (!state->getClientStateParameter<GLboolean>(param,ptr)) {
ctx->m_glGetBooleanv_enc(self, param, ptr);
}
break;
}
}
void GLEncoder::s_glGetPointerv(void * self, GLenum param, GLvoid **params)
{
GLEncoder * ctx = (GLEncoder *) self;
assert(ctx->m_state != NULL);
ctx->m_state->getClientStatePointer(param,params);
}
void GLEncoder::s_glFlush(void *self)
{
GLEncoder *ctx = (GLEncoder *)self;
ctx->m_glFlush_enc(self);
ctx->m_stream->flush();
}
const GLubyte *GLEncoder::s_glGetString(void *self, GLenum name)
{
GLubyte *retval = (GLubyte *) "";
switch(name) {
case GL_VENDOR:
retval = gVendorString;
break;
case GL_RENDERER:
retval = gRendererString;
break;
case GL_VERSION:
retval = gVersionString;
break;
case GL_EXTENSIONS:
retval = gExtensionsString;
break;
}
return retval;
}
void GLEncoder::s_glPixelStorei(void *self, GLenum param, GLint value)
{
GLEncoder *ctx = (GLEncoder *)self;
ctx->m_glPixelStorei_enc(ctx, param, value);
ALOG_ASSERT(ctx->m_state, "GLEncoder::s_glPixelStorei");
ctx->m_state->setPixelStore(param, value);
}
void GLEncoder::s_glVertexPointer(void *self, int size, GLenum type, GLsizei stride, const void *data)
{
GLEncoder *ctx = (GLEncoder *)self;
assert(ctx->m_state != NULL);
ctx->m_state->setState(GLClientState::VERTEX_LOCATION, size, type, false, stride, data);
}
void GLEncoder::s_glNormalPointer(void *self, GLenum type, GLsizei stride, const void *data)
{
GLEncoder *ctx = (GLEncoder *)self;
assert(ctx->m_state != NULL);
ctx->m_state->setState(GLClientState::NORMAL_LOCATION, 3, type, false, stride, data);
}
void GLEncoder::s_glColorPointer(void *self, int size, GLenum type, GLsizei stride, const void *data)
{
GLEncoder *ctx = (GLEncoder *)self;
assert(ctx->m_state != NULL);
ctx->m_state->setState(GLClientState::COLOR_LOCATION, size, type, false, stride, data);
}
void GLEncoder::s_glPointsizePointer(void *self, GLenum type, GLsizei stride, const void *data)
{
GLEncoder *ctx = (GLEncoder *)self;
assert(ctx->m_state != NULL);
ctx->m_state->setState(GLClientState::POINTSIZE_LOCATION, 1, type, false, stride, data);
}
void GLEncoder::s_glClientActiveTexture(void *self, GLenum texture)
{
GLEncoder *ctx = (GLEncoder *)self;
assert(ctx->m_state != NULL);
ctx->m_state->setActiveTexture(texture - GL_TEXTURE0);
}
void GLEncoder::s_glTexcoordPointer(void *self, int size, GLenum type, GLsizei stride, const void *data)
{
GLEncoder *ctx = (GLEncoder *)self;
assert(ctx->m_state != NULL);
int loc = ctx->m_state->getLocation(GL_TEXTURE_COORD_ARRAY);
ctx->m_state->setState(loc, size, type, false, stride, data);
}
void GLEncoder::s_glMatrixIndexPointerOES(void *self, int size, GLenum type, GLsizei stride, const void * data)
{
GLEncoder *ctx = (GLEncoder *)self;
assert(ctx->m_state != NULL);
int loc = ctx->m_state->getLocation(GL_MATRIX_INDEX_ARRAY_OES);
ctx->m_state->setState(loc, size, type, false, stride, data);
}
void GLEncoder::s_glWeightPointerOES(void * self, int size, GLenum type, GLsizei stride, const void * data)
{
GLEncoder *ctx = (GLEncoder *)self;
assert(ctx->m_state != NULL);
int loc = ctx->m_state->getLocation(GL_WEIGHT_ARRAY_OES);
ctx->m_state->setState(loc, size, type, false, stride, data);
}
void GLEncoder::s_glEnableClientState(void *self, GLenum state)
{
GLEncoder *ctx = (GLEncoder *) self;
assert(ctx->m_state != NULL);
int loc = ctx->m_state->getLocation(state);
ctx->m_state->enable(loc, 1);
}
void GLEncoder::s_glDisableClientState(void *self, GLenum state)
{
GLEncoder *ctx = (GLEncoder *) self;
assert(ctx->m_state != NULL);
int loc = ctx->m_state->getLocation(state);
ctx->m_state->enable(loc, 0);
}
GLboolean GLEncoder::s_glIsEnabled(void *self, GLenum cap)
{
GLEncoder *ctx = (GLEncoder *) self;
assert(ctx->m_state != NULL);
int loc = ctx->m_state->getLocation(cap);
const GLClientState::VertexAttribState *state = ctx->m_state->getState(loc);
if (state!=NULL)
return state->enabled;
return ctx->m_glIsEnabled_enc(self,cap);
}
void GLEncoder::s_glBindBuffer(void *self, GLenum target, GLuint id)
{
GLEncoder *ctx = (GLEncoder *) self;
assert(ctx->m_state != NULL);
ctx->m_state->bindBuffer(target, id);
// TODO set error state if needed;
ctx->m_glBindBuffer_enc(self, target, id);
}
void GLEncoder::s_glBufferData(void * self, GLenum target, GLsizeiptr size, const GLvoid * data, GLenum usage)
{
GLEncoder *ctx = (GLEncoder *) self;
GLuint bufferId = ctx->m_state->getBuffer(target);
SET_ERROR_IF(bufferId==0, GL_INVALID_OPERATION);
SET_ERROR_IF(size<0, GL_INVALID_VALUE);
ctx->m_shared->updateBufferData(bufferId, size, (void*)data);
ctx->m_glBufferData_enc(self, target, size, data, usage);
}
void GLEncoder::s_glBufferSubData(void * self, GLenum target, GLintptr offset, GLsizeiptr size, const GLvoid * data)
{
GLEncoder *ctx = (GLEncoder *) self;
GLuint bufferId = ctx->m_state->getBuffer(target);
SET_ERROR_IF(bufferId==0, GL_INVALID_OPERATION);
GLenum res = ctx->m_shared->subUpdateBufferData(bufferId, offset, size, (void*)data);
SET_ERROR_IF(res, res);
ctx->m_glBufferSubData_enc(self, target, offset, size, data);
}
void GLEncoder::s_glDeleteBuffers(void * self, GLsizei n, const GLuint * buffers)
{
GLEncoder *ctx = (GLEncoder *) self;
SET_ERROR_IF(n<0, GL_INVALID_VALUE);
for (int i=0; i<n; i++) {
ctx->m_shared->deleteBufferData(buffers[i]);
ctx->m_glDeleteBuffers_enc(self,1,&buffers[i]);
}
}
void GLEncoder::sendVertexData(unsigned int first, unsigned int count)
{
assert(m_state != NULL);
for (int i = 0; i < GLClientState::LAST_LOCATION; i++) {
bool enableDirty;
const GLClientState::VertexAttribState *state = m_state->getStateAndEnableDirty(i, &enableDirty);
// do not process if state not valid
if (!state) continue;
// do not send disable state if state was already disabled
if (!enableDirty && !state->enabled) continue;
if ( i >= GLClientState::TEXCOORD0_LOCATION &&
i <= GLClientState::TEXCOORD7_LOCATION ) {
m_glClientActiveTexture_enc(this, GL_TEXTURE0 + i - GLClientState::TEXCOORD0_LOCATION);
}
if (state->enabled) {
if (enableDirty)
m_glEnableClientState_enc(this, state->glConst);
unsigned int datalen = state->elementSize * count;
int stride = state->stride;
if (stride == 0) stride = state->elementSize;
int firstIndex = stride * first;
if (state->bufferObject == 0) {
switch(i) {
case GLClientState::VERTEX_LOCATION:
this->glVertexPointerData(this, state->size, state->type, state->stride,
(unsigned char *)state->data + firstIndex, datalen);
break;
case GLClientState::NORMAL_LOCATION:
this->glNormalPointerData(this, state->type, state->stride,
(unsigned char *)state->data + firstIndex, datalen);
break;
case GLClientState::COLOR_LOCATION:
this->glColorPointerData(this, state->size, state->type, state->stride,
(unsigned char *)state->data + firstIndex, datalen);
break;
case GLClientState::TEXCOORD0_LOCATION:
case GLClientState::TEXCOORD1_LOCATION:
case GLClientState::TEXCOORD2_LOCATION:
case GLClientState::TEXCOORD3_LOCATION:
case GLClientState::TEXCOORD4_LOCATION:
case GLClientState::TEXCOORD5_LOCATION:
case GLClientState::TEXCOORD6_LOCATION:
case GLClientState::TEXCOORD7_LOCATION:
this->glTexCoordPointerData(this, i - GLClientState::TEXCOORD0_LOCATION, state->size, state->type, state->stride,
(unsigned char *)state->data + firstIndex, datalen);
break;
case GLClientState::POINTSIZE_LOCATION:
this->glPointSizePointerData(this, state->type, state->stride,
(unsigned char *) state->data + firstIndex, datalen);
break;
case GLClientState::WEIGHT_LOCATION:
this->glWeightPointerData(this, state->size, state->type, state->stride,
(unsigned char * ) state->data + firstIndex, datalen);
break;
case GLClientState::MATRIXINDEX_LOCATION:
this->glMatrixIndexPointerData(this, state->size, state->type, state->stride,
(unsigned char *)state->data + firstIndex, datalen);
break;
}
} else {
this->m_glBindBuffer_enc(this, GL_ARRAY_BUFFER, state->bufferObject);
switch(i) {
case GLClientState::VERTEX_LOCATION:
this->glVertexPointerOffset(this, state->size, state->type, state->stride,
(GLuint)state->data + firstIndex);
break;
case GLClientState::NORMAL_LOCATION:
this->glNormalPointerOffset(this, state->type, state->stride,
(GLuint) state->data + firstIndex);
break;
case GLClientState::POINTSIZE_LOCATION:
this->glPointSizePointerOffset(this, state->type, state->stride,
(GLuint) state->data + firstIndex);
break;
case GLClientState::COLOR_LOCATION:
this->glColorPointerOffset(this, state->size, state->type, state->stride,
(GLuint) state->data + firstIndex);
break;
case GLClientState::TEXCOORD0_LOCATION:
case GLClientState::TEXCOORD1_LOCATION:
case GLClientState::TEXCOORD2_LOCATION:
case GLClientState::TEXCOORD3_LOCATION:
case GLClientState::TEXCOORD4_LOCATION:
case GLClientState::TEXCOORD5_LOCATION:
case GLClientState::TEXCOORD6_LOCATION:
case GLClientState::TEXCOORD7_LOCATION:
this->glTexCoordPointerOffset(this, state->size, state->type, state->stride,
(GLuint) state->data + firstIndex);
break;
case GLClientState::WEIGHT_LOCATION:
this->glWeightPointerOffset(this,state->size,state->type,state->stride,
(GLuint)state->data+firstIndex);
break;
case GLClientState::MATRIXINDEX_LOCATION:
this->glMatrixIndexPointerOffset(this,state->size,state->type,state->stride,
(GLuint)state->data+firstIndex);
break;
}
this->m_glBindBuffer_enc(this, GL_ARRAY_BUFFER, m_state->currentArrayVbo());
}
} else {
this->m_glDisableClientState_enc(this, state->glConst);
}
}
}
void GLEncoder::s_glDrawArrays(void *self, GLenum mode, GLint first, GLsizei count)
{
GLEncoder *ctx = (GLEncoder *)self;
ctx->sendVertexData(first, count);
ctx->m_glDrawArrays_enc(ctx, mode, /*first*/ 0, count);
}
void GLEncoder::s_glDrawElements(void *self, GLenum mode, GLsizei count, GLenum type, const void *indices)
{
GLEncoder *ctx = (GLEncoder *)self;
assert(ctx->m_state != NULL);
SET_ERROR_IF(count<0, GL_INVALID_VALUE);
bool has_immediate_arrays = false;
bool has_indirect_arrays = false;
for (int i = 0; i < GLClientState::LAST_LOCATION; i++) {
const GLClientState::VertexAttribState *state = ctx->m_state->getState(i);
if (state->enabled) {
if (state->bufferObject != 0) {
has_indirect_arrays = true;
} else {
has_immediate_arrays = true;
}
}
}
if (!has_immediate_arrays && !has_indirect_arrays) {
ALOGE("glDrawElements: no data bound to the command - ignoring\n");
return;
}
bool adjustIndices = true;
if (ctx->m_state->currentIndexVbo() != 0) {
if (!has_immediate_arrays) {
ctx->sendVertexData(0, count);
ctx->m_glBindBuffer_enc(self, GL_ELEMENT_ARRAY_BUFFER, ctx->m_state->currentIndexVbo());
ctx->glDrawElementsOffset(ctx, mode, count, type, (GLuint)indices);
adjustIndices = false;
} else {
BufferData * buf = ctx->m_shared->getBufferData(ctx->m_state->currentIndexVbo());
ctx->m_glBindBuffer_enc(self, GL_ELEMENT_ARRAY_BUFFER, 0);
indices = (void*)((GLintptr)buf->m_fixedBuffer.ptr() + (GLintptr)indices);
}
}
if (adjustIndices) {
void *adjustedIndices = (void*)indices;
int minIndex = 0, maxIndex = 0;
switch(type) {
case GL_BYTE:
case GL_UNSIGNED_BYTE:
GLUtils::minmax<unsigned char>((unsigned char *)indices, count, &minIndex, &maxIndex);
if (minIndex != 0) {
adjustedIndices = ctx->m_fixedBuffer.alloc(glSizeof(type) * count);
GLUtils::shiftIndices<unsigned char>((unsigned char *)indices,
(unsigned char *)adjustedIndices,
count, -minIndex);
}
break;
case GL_SHORT:
case GL_UNSIGNED_SHORT:
GLUtils::minmax<unsigned short>((unsigned short *)indices, count, &minIndex, &maxIndex);
if (minIndex != 0) {
adjustedIndices = ctx->m_fixedBuffer.alloc(glSizeof(type) * count);
GLUtils::shiftIndices<unsigned short>((unsigned short *)indices,
(unsigned short *)adjustedIndices,
count, -minIndex);
}
break;
default:
ALOGE("unsupported index buffer type %d\n", type);
}
if (has_indirect_arrays || 1) {
ctx->sendVertexData(minIndex, maxIndex - minIndex + 1);
ctx->glDrawElementsData(ctx, mode, count, type, adjustedIndices,
count * glSizeof(type));
// XXX - OPTIMIZATION (see the other else branch) should be implemented
if(!has_indirect_arrays) {
//ALOGD("unoptimized drawelements !!!\n");
}
} else {
// we are all direct arrays and immidate mode index array -
// rebuild the arrays and the index array;
ALOGE("glDrawElements: direct index & direct buffer data - will be implemented in later versions;\n");
}
}
}
void GLEncoder::s_glActiveTexture(void* self, GLenum texture)
{
GLEncoder* ctx = (GLEncoder*)self;
GLClientState* state = ctx->m_state;
GLenum err;
if ((err = state->setActiveTextureUnit(texture)) != GL_NO_ERROR) {
ALOGE("%s:%s:%d GL error %#x\n", __FILE__, __FUNCTION__, __LINE__, err);
ctx->setError(err);
return;
}
ctx->m_glActiveTexture_enc(ctx, texture);
}
void GLEncoder::s_glBindTexture(void* self, GLenum target, GLuint texture)
{
GLEncoder* ctx = (GLEncoder*)self;
GLClientState* state = ctx->m_state;
GLenum err;
GLboolean firstUse;
if ((err = state->bindTexture(target, texture, &firstUse)) != GL_NO_ERROR) {
ALOGE("%s:%s:%d GL error %#x\n", __FILE__, __FUNCTION__, __LINE__, err);
ctx->setError(err);
return;
}
if (target != GL_TEXTURE_2D && target != GL_TEXTURE_EXTERNAL_OES) {
ctx->m_glBindTexture_enc(ctx, target, texture);
return;
}
GLenum priorityTarget = state->getPriorityEnabledTarget(GL_TEXTURE_2D);
if (target == GL_TEXTURE_EXTERNAL_OES && firstUse) {
// set TEXTURE_EXTERNAL_OES default states which differ from TEXTURE_2D
ctx->m_glBindTexture_enc(ctx, GL_TEXTURE_2D, texture);
ctx->m_glTexParameteri_enc(ctx, GL_TEXTURE_2D,
GL_TEXTURE_MIN_FILTER, GL_LINEAR);
ctx->m_glTexParameteri_enc(ctx, GL_TEXTURE_2D,
GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
ctx->m_glTexParameteri_enc(ctx, GL_TEXTURE_2D,
GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (target != priorityTarget) {
ctx->m_glBindTexture_enc(ctx, GL_TEXTURE_2D,
state->getBoundTexture(GL_TEXTURE_2D));
}
}
if (target == priorityTarget) {
ctx->m_glBindTexture_enc(ctx, GL_TEXTURE_2D, texture);
}
}
void GLEncoder::s_glDeleteTextures(void* self, GLsizei n, const GLuint* textures)
{
GLEncoder* ctx = (GLEncoder*)self;
GLClientState* state = ctx->m_state;
state->deleteTextures(n, textures);
ctx->m_glDeleteTextures_enc(ctx, n, textures);
}
void GLEncoder::s_glDisable(void* self, GLenum cap)
{
GLEncoder* ctx = (GLEncoder*)self;
GLClientState* state = ctx->m_state;
if (cap == GL_TEXTURE_2D || cap == GL_TEXTURE_EXTERNAL_OES) {
GLenum prevTarget = state->getPriorityEnabledTarget(GL_INVALID_ENUM);
state->disableTextureTarget(cap);
GLenum currTarget = state->getPriorityEnabledTarget(GL_INVALID_ENUM);
if (prevTarget != currTarget) {
if (currTarget == GL_INVALID_ENUM) {
ctx->m_glDisable_enc(ctx, GL_TEXTURE_2D);
currTarget = GL_TEXTURE_2D;
}
// maintain the invariant that when TEXTURE_EXTERNAL_OES is
// disabled, the TEXTURE_2D binding is active, even if
// TEXTURE_2D is also disabled.
ctx->m_glBindTexture_enc(ctx, GL_TEXTURE_2D,
state->getBoundTexture(currTarget));
}
} else {
ctx->m_glDisable_enc(ctx, cap);
}
}
void GLEncoder::s_glEnable(void* self, GLenum cap)
{
GLEncoder* ctx = (GLEncoder*)self;
GLClientState* state = ctx->m_state;
if (cap == GL_TEXTURE_2D || cap == GL_TEXTURE_EXTERNAL_OES) {
GLenum prevTarget = state->getPriorityEnabledTarget(GL_INVALID_ENUM);
state->enableTextureTarget(cap);
GLenum currTarget = state->getPriorityEnabledTarget(GL_INVALID_ENUM);
if (prevTarget != currTarget) {
if (prevTarget == GL_INVALID_ENUM) {
ctx->m_glEnable_enc(ctx, GL_TEXTURE_2D);
}
if (currTarget == GL_TEXTURE_EXTERNAL_OES) {
ctx->m_glBindTexture_enc(ctx, GL_TEXTURE_2D,
state->getBoundTexture(currTarget));
}
}
} else {
ctx->m_glEnable_enc(ctx, cap);
}
}
void GLEncoder::s_glGetTexParameterfv(void* self,
GLenum target, GLenum pname, GLfloat* params)
{
GLEncoder* ctx = (GLEncoder*)self;
const GLClientState* state = ctx->m_state;
if (target == GL_TEXTURE_2D || target == GL_TEXTURE_EXTERNAL_OES) {
ctx->override2DTextureTarget(target);
ctx->m_glGetTexParameterfv_enc(ctx, GL_TEXTURE_2D, pname, params);
ctx->restore2DTextureTarget();
} else {
ctx->m_glGetTexParameterfv_enc(ctx, target, pname, params);
}
}
void GLEncoder::s_glGetTexParameteriv(void* self,
GLenum target, GLenum pname, GLint* params)
{
GLEncoder* ctx = (GLEncoder*)self;
const GLClientState* state = ctx->m_state;
switch (pname) {
case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
*params = 1;
break;
default:
if (target == GL_TEXTURE_2D || target == GL_TEXTURE_EXTERNAL_OES) {
ctx->override2DTextureTarget(target);
ctx->m_glGetTexParameteriv_enc(ctx, GL_TEXTURE_2D, pname, params);
ctx->restore2DTextureTarget();
} else {
ctx->m_glGetTexParameteriv_enc(ctx, target, pname, params);
}
break;
}
}
void GLEncoder::s_glGetTexParameterxv(void* self,
GLenum target, GLenum pname, GLfixed* params)
{
GLEncoder* ctx = (GLEncoder*)self;
const GLClientState* state = ctx->m_state;
if (target == GL_TEXTURE_2D || target == GL_TEXTURE_EXTERNAL_OES) {
ctx->override2DTextureTarget(target);
ctx->m_glGetTexParameterxv_enc(ctx, GL_TEXTURE_2D, pname, params);
ctx->restore2DTextureTarget();
} else {
ctx->m_glGetTexParameterxv_enc(ctx, target, pname, params);
}
}
static bool isValidTextureExternalParam(GLenum pname, GLenum param)
{
switch (pname) {
case GL_TEXTURE_MIN_FILTER:
case GL_TEXTURE_MAG_FILTER:
return param == GL_NEAREST || param == GL_LINEAR;
case GL_TEXTURE_WRAP_S:
case GL_TEXTURE_WRAP_T:
return param == GL_CLAMP_TO_EDGE;
case GL_GENERATE_MIPMAP:
return param == GL_FALSE;
default:
return true;
}
}
void GLEncoder::s_glTexParameterf(void* self,
GLenum target, GLenum pname, GLfloat param)
{
GLEncoder* ctx = (GLEncoder*)self;
const GLClientState* state = ctx->m_state;
SET_ERROR_IF((target == GL_TEXTURE_EXTERNAL_OES &&
!isValidTextureExternalParam(pname, (GLenum)param)),
GL_INVALID_ENUM);
if (target == GL_TEXTURE_2D || target == GL_TEXTURE_EXTERNAL_OES) {
ctx->override2DTextureTarget(target);
ctx->m_glTexParameterf_enc(ctx, GL_TEXTURE_2D, pname, param);
ctx->restore2DTextureTarget();
} else {
ctx->m_glTexParameterf_enc(ctx, target, pname, param);
}
}
void GLEncoder::s_glTexParameterfv(void* self,
GLenum target, GLenum pname, const GLfloat* params)
{
GLEncoder* ctx = (GLEncoder*)self;
const GLClientState* state = ctx->m_state;
SET_ERROR_IF((target == GL_TEXTURE_EXTERNAL_OES &&
!isValidTextureExternalParam(pname, (GLenum)params[0])),
GL_INVALID_ENUM);
if (target == GL_TEXTURE_2D || target == GL_TEXTURE_EXTERNAL_OES) {
ctx->override2DTextureTarget(target);
ctx->m_glTexParameterfv_enc(ctx, GL_TEXTURE_2D, pname, params);
ctx->restore2DTextureTarget();
} else {
ctx->m_glTexParameterfv_enc(ctx, target, pname, params);
}
}
void GLEncoder::s_glTexParameteri(void* self,
GLenum target, GLenum pname, GLint param)
{
GLEncoder* ctx = (GLEncoder*)self;
const GLClientState* state = ctx->m_state;
SET_ERROR_IF((target == GL_TEXTURE_EXTERNAL_OES &&
!isValidTextureExternalParam(pname, (GLenum)param)),
GL_INVALID_ENUM);
if (target == GL_TEXTURE_2D || target == GL_TEXTURE_EXTERNAL_OES) {
ctx->override2DTextureTarget(target);
ctx->m_glTexParameteri_enc(ctx, GL_TEXTURE_2D, pname, param);
ctx->restore2DTextureTarget();
} else {
ctx->m_glTexParameteri_enc(ctx, target, pname, param);
}
}
void GLEncoder::s_glTexParameterx(void* self,
GLenum target, GLenum pname, GLfixed param)
{
GLEncoder* ctx = (GLEncoder*)self;
const GLClientState* state = ctx->m_state;
SET_ERROR_IF((target == GL_TEXTURE_EXTERNAL_OES &&
!isValidTextureExternalParam(pname, (GLenum)param)),
GL_INVALID_ENUM);
if (target == GL_TEXTURE_2D || target == GL_TEXTURE_EXTERNAL_OES) {
ctx->override2DTextureTarget(target);
ctx->m_glTexParameterx_enc(ctx, GL_TEXTURE_2D, pname, param);
ctx->restore2DTextureTarget();
} else {
ctx->m_glTexParameterx_enc(ctx, target, pname, param);
}
}
void GLEncoder::s_glTexParameteriv(void* self,
GLenum target, GLenum pname, const GLint* params)
{
GLEncoder* ctx = (GLEncoder*)self;
const GLClientState* state = ctx->m_state;
SET_ERROR_IF((target == GL_TEXTURE_EXTERNAL_OES &&
!isValidTextureExternalParam(pname, (GLenum)params[0])),
GL_INVALID_ENUM);
if (target == GL_TEXTURE_2D || target == GL_TEXTURE_EXTERNAL_OES) {
ctx->override2DTextureTarget(target);
ctx->m_glTexParameteriv_enc(ctx, GL_TEXTURE_2D, pname, params);
ctx->restore2DTextureTarget();
} else {
ctx->m_glTexParameteriv_enc(ctx, target, pname, params);
}
}
void GLEncoder::s_glTexParameterxv(void* self,
GLenum target, GLenum pname, const GLfixed* params)
{
GLEncoder* ctx = (GLEncoder*)self;
const GLClientState* state = ctx->m_state;
SET_ERROR_IF((target == GL_TEXTURE_EXTERNAL_OES &&
!isValidTextureExternalParam(pname, (GLenum)params[0])),
GL_INVALID_ENUM);
if (target == GL_TEXTURE_2D || target == GL_TEXTURE_EXTERNAL_OES) {
ctx->override2DTextureTarget(target);
ctx->m_glTexParameterxv_enc(ctx, GL_TEXTURE_2D, pname, params);
ctx->restore2DTextureTarget();
} else {
ctx->m_glTexParameterxv_enc(ctx, target, pname, params);
}
}
void GLEncoder::override2DTextureTarget(GLenum target)
{
if ((target == GL_TEXTURE_2D || target == GL_TEXTURE_EXTERNAL_OES) &&
target != m_state->getPriorityEnabledTarget(GL_TEXTURE_2D)) {
m_glBindTexture_enc(this, GL_TEXTURE_2D,
m_state->getBoundTexture(target));
}
}
void GLEncoder::restore2DTextureTarget()
{
GLenum priorityTarget = m_state->getPriorityEnabledTarget(GL_TEXTURE_2D);
m_glBindTexture_enc(this, GL_TEXTURE_2D,
m_state->getBoundTexture(priorityTarget));
}
GLEncoder::GLEncoder(IOStream *stream) : gl_encoder_context_t(stream)
{
m_initialized = false;
m_state = NULL;
m_error = GL_NO_ERROR;
m_num_compressedTextureFormats = 0;
m_compressedTextureFormats = NULL;
// overrides;
m_glFlush_enc = set_glFlush(s_glFlush);
m_glPixelStorei_enc = set_glPixelStorei(s_glPixelStorei);
m_glVertexPointer_enc = set_glVertexPointer(s_glVertexPointer);
m_glNormalPointer_enc = set_glNormalPointer(s_glNormalPointer);
m_glColorPointer_enc = set_glColorPointer(s_glColorPointer);
m_glPointSizePointerOES_enc = set_glPointSizePointerOES(s_glPointsizePointer);
m_glClientActiveTexture_enc = set_glClientActiveTexture(s_glClientActiveTexture);
m_glTexCoordPointer_enc = set_glTexCoordPointer(s_glTexcoordPointer);
m_glMatrixIndexPointerOES_enc = set_glMatrixIndexPointerOES(s_glMatrixIndexPointerOES);
m_glWeightPointerOES_enc = set_glWeightPointerOES(s_glWeightPointerOES);
m_glGetIntegerv_enc = set_glGetIntegerv(s_glGetIntegerv);
m_glGetFloatv_enc = set_glGetFloatv(s_glGetFloatv);
m_glGetBooleanv_enc = set_glGetBooleanv(s_glGetBooleanv);
m_glGetFixedv_enc = set_glGetFixedv(s_glGetFixedv);
m_glGetPointerv_enc = set_glGetPointerv(s_glGetPointerv);
m_glBindBuffer_enc = set_glBindBuffer(s_glBindBuffer);
m_glBufferData_enc = set_glBufferData(s_glBufferData);
m_glBufferSubData_enc = set_glBufferSubData(s_glBufferSubData);
m_glDeleteBuffers_enc = set_glDeleteBuffers(s_glDeleteBuffers);
m_glEnableClientState_enc = set_glEnableClientState(s_glEnableClientState);
m_glDisableClientState_enc = set_glDisableClientState(s_glDisableClientState);
m_glIsEnabled_enc = set_glIsEnabled(s_glIsEnabled);
m_glDrawArrays_enc = set_glDrawArrays(s_glDrawArrays);
m_glDrawElements_enc = set_glDrawElements(s_glDrawElements);
set_glGetString(s_glGetString);
set_glFinish(s_glFinish);
m_glGetError_enc = set_glGetError(s_glGetError);
m_glActiveTexture_enc = set_glActiveTexture(s_glActiveTexture);
m_glBindTexture_enc = set_glBindTexture(s_glBindTexture);
m_glDeleteTextures_enc = set_glDeleteTextures(s_glDeleteTextures);
m_glDisable_enc = set_glDisable(s_glDisable);
m_glEnable_enc = set_glEnable(s_glEnable);
m_glGetTexParameterfv_enc = set_glGetTexParameterfv(s_glGetTexParameterfv);
m_glGetTexParameteriv_enc = set_glGetTexParameteriv(s_glGetTexParameteriv);
m_glGetTexParameterxv_enc = set_glGetTexParameterxv(s_glGetTexParameterxv);
m_glTexParameterf_enc = set_glTexParameterf(s_glTexParameterf);
m_glTexParameterfv_enc = set_glTexParameterfv(s_glTexParameterfv);
m_glTexParameteri_enc = set_glTexParameteri(s_glTexParameteri);
m_glTexParameterx_enc = set_glTexParameterx(s_glTexParameterx);
m_glTexParameteriv_enc = set_glTexParameteriv(s_glTexParameteriv);
m_glTexParameterxv_enc = set_glTexParameterxv(s_glTexParameterxv);
}
GLEncoder::~GLEncoder()
{
delete [] m_compressedTextureFormats;
}
size_t GLEncoder::pixelDataSize(GLsizei width, GLsizei height, GLenum format, GLenum type, int pack)
{
assert(m_state != NULL);
return m_state->pixelDataSize(width, height, format, type, pack);
}
void GLEncoder::s_glFinish(void *self)
{
GLEncoder *ctx = (GLEncoder *)self;
ctx->glFinishRoundTrip(self);
}