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-rw-r--r--src/libjin/Common/je_common.h1
-rw-r--r--src/libjin/Common/je_exception.cpp46
-rw-r--r--src/libjin/Common/je_exception.h29
-rw-r--r--src/libjin/Filesystem/je_asset_database.cpp9
-rw-r--r--src/libjin/Filesystem/je_asset_database.h2
-rw-r--r--src/libjin/Graphics/je_bitmap.cpp21
-rw-r--r--src/libjin/Graphics/je_bitmap.h3
-rw-r--r--src/libjin/Graphics/je_window.cpp10
8 files changed, 105 insertions, 16 deletions
diff --git a/src/libjin/Common/je_common.h b/src/libjin/Common/je_common.h
index 67505c1..31b67c6 100644
--- a/src/libjin/Common/je_common.h
+++ b/src/libjin/Common/je_common.h
@@ -1,6 +1,7 @@
#ifndef __JE_COMMON_H__
#define __JE_COMMON_H__
+#include "je_exception.h"
#include "je_array.hpp"
#endif \ No newline at end of file
diff --git a/src/libjin/Common/je_exception.cpp b/src/libjin/Common/je_exception.cpp
index e69de29..5489a42 100644
--- a/src/libjin/Common/je_exception.cpp
+++ b/src/libjin/Common/je_exception.cpp
@@ -0,0 +1,46 @@
+#include <stdarg.h>
+
+#include "je_exception.h"
+
+namespace JinEngine
+{
+
+ Exception::Exception(const char *fmt, ...)
+ {
+ va_list args;
+ int size_buffer = 256, size_out;
+ char *buffer;
+ while (true)
+ {
+ buffer = new char[size_buffer];
+ memset(buffer, 0, size_buffer);
+
+ va_start(args, fmt);
+ size_out = vsnprintf(buffer, size_buffer, fmt, args);
+ va_end(args);
+
+ // see http://perfec.to/vsnprintf/pasprintf.c
+ // if size_out ...
+ // == -1 --> output was truncated
+ // == size_buffer --> output was truncated
+ // == size_buffer-1 --> ambiguous, /may/ have been truncated
+ // > size_buffer --> output was truncated, and size_out
+ // bytes would have been written
+ if (size_out == size_buffer || size_out == -1 || size_out == size_buffer - 1)
+ size_buffer *= 2;
+ else if (size_out > size_buffer)
+ size_buffer = size_out + 2; // to avoid the ambiguous case
+ else
+ break;
+
+ delete[] buffer;
+ }
+ mMessage = std::string(buffer);
+ delete[] buffer;
+ }
+
+ Exception::~Exception() throw()
+ {
+ }
+
+} // namespace JinEngine \ No newline at end of file
diff --git a/src/libjin/Common/je_exception.h b/src/libjin/Common/je_exception.h
index cf11f51..c319ebd 100644
--- a/src/libjin/Common/je_exception.h
+++ b/src/libjin/Common/je_exception.h
@@ -2,18 +2,41 @@
#define __JE_EXCEPTION_H__
#include <exception>
+#include <string>
namespace JinEngine
{
///
- /// Built-in exception class.
+ /// Jin Exception.
///
class Exception : public std::exception
{
public:
- Exception();
- const char* what() const throw();
+
+ ///
+ /// Creates a new Exception according to printf-rules.
+ ///
+ /// @param fmt The format string (see printf).
+ ///
+ Exception(const char *fmt, ...);
+ virtual ~Exception() throw();
+
+ ///
+ /// Returns a string containing reason for the exception.
+ ///
+ /// @return A description of the exception.
+ ///
+ inline virtual const char *what() const throw()
+ {
+ return mMessage.c_str();
+ }
+
+ private:
+ ///
+ /// Exception message.
+ ///
+ std::string mMessage;
};
diff --git a/src/libjin/Filesystem/je_asset_database.cpp b/src/libjin/Filesystem/je_asset_database.cpp
index f2c5681..a8524c5 100644
--- a/src/libjin/Filesystem/je_asset_database.cpp
+++ b/src/libjin/Filesystem/je_asset_database.cpp
@@ -5,6 +5,8 @@
#include <stdlib.h>
#include <stdio.h> /* defines FILENAME_MAX */
+#include "../common/je_exception.h"
+
#include "je_asset_database.h"
namespace JinEngine
@@ -34,14 +36,13 @@ namespace JinEngine
}
}
- bool AssetDatabase::read(const char* path, Buffer& buffer)
+ void AssetDatabase::read(const char* path, Buffer& buffer)
{
size_t size;
byte* data = (byte*)smtread(mSmt, path, &size);
- if (data == nullptr)
- return false;
+ if (data == nullptr)
+ throw Exception("Could not read file %s.", path);
buffer.bind(data, size);
- return true;
}
Buffer* read(const char* path)
diff --git a/src/libjin/Filesystem/je_asset_database.h b/src/libjin/Filesystem/je_asset_database.h
index e61aebf..e8b1bd1 100644
--- a/src/libjin/Filesystem/je_asset_database.h
+++ b/src/libjin/Filesystem/je_asset_database.h
@@ -70,7 +70,7 @@ namespace JinEngine
/// @param buffer Buffer to fill.
/// @return True if read sucessful, otherwise return false.
///
- bool read(const char* path, Buffer& buffer);
+ void read(const char* path, Buffer& buffer);
///
/// Read file and return data content.
diff --git a/src/libjin/Graphics/je_bitmap.cpp b/src/libjin/Graphics/je_bitmap.cpp
index c11028f..711b8b5 100644
--- a/src/libjin/Graphics/je_bitmap.cpp
+++ b/src/libjin/Graphics/je_bitmap.cpp
@@ -1,6 +1,7 @@
#define STB_IMAGE_IMPLEMENTATION
#include "stb/stb_image.h"
+#include "../common/je_exception.h"
#include "../filesystem/je_asset_database.h"
#include "../math/je_math.h"
@@ -35,8 +36,11 @@ namespace JinEngine
return nullptr;
int w, h;
void* data = stbi_load_from_memory((unsigned char *)imgData, size, &w, &h, NULL, STBI_rgb_alpha);
- if (data == nullptr)
- return nullptr;
+ if (data == nullptr)
+ {
+ throw Exception("Could not create bitmap from image data.");
+ return nullptr;
+ }
Bitmap* bitmap = new Bitmap();
bitmap->pixels = (Color*)data;
bitmap->width = w;
@@ -73,6 +77,8 @@ namespace JinEngine
width = w;
height = h;
pixels = new Color[w*h];
+ if (pixels == nullptr)
+ throw Exception("Not enough memory.");
}
Bitmap::~Bitmap()
@@ -94,6 +100,8 @@ namespace JinEngine
if (pixels != nullptr)
delete[] pixels;
pixels = new Color[w*h];
+ if (pixels == nullptr)
+ throw Exception("Not enough memory.");
size_t s = w * h * sizeof(Color);
memcpy(pixels, p, s);
width = w;
@@ -106,6 +114,8 @@ namespace JinEngine
return;
if (without<int>(x, 0, width - 1) || without<int>(y, 0, height - 1))
return;
+ if (x + y * width >= width * height)
+ throw Exception("Pixel <%d, %d> of bitmap is out of range.", x, y);
pixels[x + y * width] = c;
}
@@ -114,7 +124,8 @@ namespace JinEngine
if (pixels != nullptr)
delete[] pixels;
pixels = new Color[w*h];
- size_t s = w * h * sizeof(Color);
+ if (pixels == nullptr)
+ throw Exception("Not enough memory.");
width = w;
height = h;
for (int x = 0; x < w; ++x)
@@ -126,8 +137,10 @@ namespace JinEngine
}
}
- void Bitmap::setPixels(Color* p)
+ void Bitmap::setPixels(Color* p, int count)
{
+ if (count > width * height)
+ throw Exception("Pixels are out of range.");
size_t s = width * height * sizeof(Color);
memcpy(pixels, p, s);
}
diff --git a/src/libjin/Graphics/je_bitmap.h b/src/libjin/Graphics/je_bitmap.h
index bb7bbfa..b0b7dad 100644
--- a/src/libjin/Graphics/je_bitmap.h
+++ b/src/libjin/Graphics/je_bitmap.h
@@ -122,8 +122,9 @@ namespace JinEngine
/// Set pixels with given color data.
///
/// @param colors New pixels' colors.
+ /// @param count Number of pixels.
///
- void setPixels(Color* colors);
+ void setPixels(Color* colors, int count);
///
/// Get pixel in given position.
diff --git a/src/libjin/Graphics/je_window.cpp b/src/libjin/Graphics/je_window.cpp
index 7265898..86ccd29 100644
--- a/src/libjin/Graphics/je_window.cpp
+++ b/src/libjin/Graphics/je_window.cpp
@@ -70,15 +70,19 @@ namespace JinEngine
return false;
SDL_GL_SetSwapInterval(vsync ? 1 : 0);
SDL_GL_MakeCurrent(mWnd, ctx);
- // default configuration
+ // Default configuration
gl.setClearColor(0, 0, 0, 0xff);
- gl.pushColor(0xff, 0xff, 0xff, 0xff);
+ glClear(GL_COLOR_BUFFER_BIT);
+ gl.pushColor(0xff, 0xff, 0xff, 0xff);
gl.enable(GL_BLEND);
gl.enable(GL_TEXTURE_2D);
gl.setBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- // bind to default canvas
+ // Bind to default canvas
Canvas::unbind();
Shader::unuse();
+ // Avoid white blinnk.
+ swapBuffers();
+
return true;
}
generated by cgit v1.1-26-g67d0 at 2025-05-27 22:31:21 +0000