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/*
** 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 "header.h"
namespace android
{
unsigned GetBytesPerPixel(const GLenum format, const GLenum type)
{
switch (type) {
case GL_UNSIGNED_SHORT_5_6_5:
return 2;
case GL_UNSIGNED_SHORT_4_4_4_4:
return 2;
case GL_UNSIGNED_SHORT_5_5_5_1:
return 2;
case GL_UNSIGNED_BYTE:
break;
default:
assert(0);
}
switch (format) {
case GL_ALPHA:
return 1;
case GL_LUMINANCE:
return 1;
break;
case GL_LUMINANCE_ALPHA:
return 2;
case GL_RGB:
return 3;
case GL_RGBA:
return 4;
default:
assert(0);
return 0;
}
}
#define USE_RLE 0
#if USE_RLE
export template<typename T>
void * RLEEncode(const void * pixels, unsigned count, unsigned * encodedSize)
{
// first is a byte indicating data size [1,2,4] bytes
// then an unsigned indicating decompressed size
// then a byte of header: MSB == 1 indicates run, else literal
// LSB7 is run or literal length (actual length - 1)
const T * data = (T *)pixels;
unsigned bufferSize = sizeof(T) * count / 2 + 8;
unsigned char * buffer = (unsigned char *)malloc(bufferSize);
buffer[0] = sizeof(T);
unsigned bufferWritten = 1; // number of bytes written
*(unsigned *)(buffer + bufferWritten) = count;
bufferWritten += sizeof(count);
while (count) {
unsigned char run = 1;
bool repeat = true;
for (run = 1; run < count; run++)
if (data[0] != data[run]) {
repeat = false;
break;
} else if (run > 126)
break;
if (!repeat) {
// find literal length
for (run = 1; run < count; run++)
if (data[run - 1] == data[run])
break;
else if (run > 126)
break;
unsigned bytesToWrite = 1 + sizeof(T) * run;
if (bufferWritten + bytesToWrite > bufferSize) {
bufferSize += sizeof(T) * run + 256;
buffer = (unsigned char *)realloc(buffer, bufferSize);
}
buffer[bufferWritten++] = run - 1;
for (unsigned i = 0; i < run; i++) {
*(T *)(buffer + bufferWritten) = *data;
bufferWritten += sizeof(T);
data++;
}
count -= run;
} else {
unsigned bytesToWrite = 1 + sizeof(T);
if (bufferWritten + bytesToWrite > bufferSize) {
bufferSize += 256;
buffer = (unsigned char *)realloc(buffer, bufferSize);
}
buffer[bufferWritten++] = (run - 1) | 0x80;
*(T *)(buffer + bufferWritten) = data[0];
bufferWritten += sizeof(T);
data += run;
count -= run;
}
}
if (encodedSize)
*encodedSize = bufferWritten;
return buffer;
}
void * RLEEncode(const void * pixels, const unsigned bytesPerPixel, const unsigned count, unsigned * encodedSize)
{
switch (bytesPerPixel) {
case 4:
return RLEEncode<int>(pixels, count, encodedSize);
case 2:
return RLEEncode<short>(pixels, count, encodedSize);
case 1:
return RLEEncode<char>(pixels, count, encodedSize);
default:
assert(0);
return NULL;
}
}
#endif
}; // namespace android
void Debug_glTexImage2D(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid* pixels)
{
glesv2debugger::Message msg;
const bool expectResponse = false;
struct : public FunctionCall {
GLenum target;
GLint level;
GLint internalformat;
GLsizei width;
GLsizei height;
GLint border;
GLenum format;
GLenum type;
const GLvoid* pixels;
const int * operator()(gl_hooks_t::gl_t const * const _c, glesv2debugger::Message & msg) {
nsecs_t c0 = systemTime(timeMode);
_c->glTexImage2D(target, level, internalformat, width, height, border, format, type, pixels);
msg.set_time((systemTime(timeMode) - c0) * 1e-6f);
return 0;
}
} caller;
caller.target = target;
caller.level = level;
caller.internalformat = internalformat;
caller.width = width;
caller.height = height;
caller.border = border;
caller.format = format;
caller.type = type;
caller.pixels = pixels;
msg.set_arg0(target);
msg.set_arg1(level);
msg.set_arg2(internalformat);
msg.set_arg3(width);
msg.set_arg4(height);
msg.set_arg5(border);
msg.set_arg6(format);
msg.set_arg7(type);
msg.set_arg8(reinterpret_cast<int>(pixels));
if (pixels) {
assert(internalformat == format);
assert(0 == border);
unsigned bytesPerPixel = GetBytesPerPixel(format, type);
assert(0 < bytesPerPixel);
// LOGD("GLESv2_dbg: glTexImage2D width=%d height=%d level=%d bytesPerPixel=%d",
// width, height, level, bytesPerPixel);
#if USE_RLE
unsigned encodedSize = 0;
void * data = RLEEncode(pixels, bytesPerPixel, width * height, &encodedSize);
msg.set_data(data, encodedSize);
free(data);
if (encodedSize > bytesPerPixel * width * height)
LOGD("GLESv2_dbg: glTexImage2D sending data encodedSize=%d size=%d", encodedSize, bytesPerPixel * width * height);
#else
msg.set_data(pixels, bytesPerPixel * width * height);
#endif
}
int * ret = MessageLoop(caller, msg, expectResponse,
glesv2debugger::Message_Function_glTexImage2D);
}
void Debug_glTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid* pixels)
{
glesv2debugger::Message msg;
const bool expectResponse = false;
struct : public FunctionCall {
GLenum target;
GLint level;
GLint xoffset;
GLint yoffset;
GLsizei width;
GLsizei height;
GLenum format;
GLenum type;
const GLvoid* pixels;
const int * operator()(gl_hooks_t::gl_t const * const _c, glesv2debugger::Message & msg) {
nsecs_t c0 = systemTime(timeMode);
_c->glTexSubImage2D(target, level, xoffset, yoffset, width, height, format, type, pixels);
msg.set_time((systemTime(timeMode) - c0) * 1e-6f);
return 0;
}
} caller;
caller.target = target;
caller.level = level;
caller.xoffset = xoffset;
caller.yoffset = yoffset;
caller.width = width;
caller.height = height;
caller.format = format;
caller.type = type;
caller.pixels = pixels;
msg.set_arg0(target);
msg.set_arg1(level);
msg.set_arg2(xoffset);
msg.set_arg3(yoffset);
msg.set_arg4(width);
msg.set_arg5(height);
msg.set_arg6(format);
msg.set_arg7(type);
msg.set_arg8(reinterpret_cast<int>(pixels));
assert(pixels);
if (pixels) {
unsigned bytesPerPixel = GetBytesPerPixel(format, type);
assert(0 < bytesPerPixel);
// LOGD("GLESv2_dbg: glTexSubImage2D width=%d height=%d level=%d bytesPerPixel=%d",
// width, height, level, bytesPerPixel);
#if USE_RLE
unsigned encodedSize = 0;
void * data = RLEEncode(pixels, bytesPerPixel, width * height, &encodedSize);
msg.set_data(data, encodedSize);
free(data);
if (encodedSize > bytesPerPixel * width * height)
LOGD("GLESv2_dbg: glTexImage2D sending data encodedSize=%d size=%d", encodedSize, bytesPerPixel * width * height);
#else
msg.set_data(pixels, bytesPerPixel * width * height);
#endif
}
int * ret = MessageLoop(caller, msg, expectResponse,
glesv2debugger::Message_Function_glTexSubImage2D);
}
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