*misc

1 files changed, 103 insertions, 0 deletions

diff --git a/Source/modules/asura-core/Graphics/Image.cpp b/Source/modules/asura-core/Graphics/Image.cpp
new file mode 100644
index 0000000..36d2478
--- /dev/null
+++ b/Source/modules/asura-core/Graphics/Image.cpp
@@ -0,0 +1,103 @@
+#include <asura-base/Exception.h>
+
+#include "../CoreConfig.h"
+
+#include "Shader.h"
+#include "Image.h"
+#include "GfxDevice.h"
+
+using namespace AEFileSystem;
+using namespace AEImage;
+
+namespace_begin(AsuraEngine)
+namespace_begin(Graphics)
+
+Image::Image()
+	: m_Width(0)
+	, m_Height(0)
+{
+}
+
+Image::~Image()
+{
+}
+
+bool Image::Load(ImageData* imgData)
+{
+	if (!imgData) return false; 
+
+	if (m_TexID == 0)
+	{
+		glGenTextures(1, &m_TexID);
+		if (m_TexID == 0)
+			throw Exception("OpenGL glGenTextures failed.");
+	}
+
+	glBindTexture(GL_TEXTURE_2D, m_TexID);
+	imgData->Lock();
+	int width = imgData->width;
+	int height = imgData->height;
+	TextureFormat tf = ConvertColorFormat(imgData->format);
+	glTexImage2D(
+		GL_TEXTURE_2D
+		, 0
+		, tf.internalformat
+		, width, height
+		, 0
+		, tf.externalformat
+		, tf.type
+		, imgData->pixels
+	);
+
+	m_Width = imgData->width; 
+	m_Height = imgData->height;
+	imgData->Unlock();
+	GLenum err = glGetError(); 
+	if (err != GL_NO_ERROR)
+		throw Exception("OpenGL glTexImage2D cause error, error code=%d", err);
+	glBindTexture(GL_TEXTURE_2D, 0);
+
+	return true;
+}
+
+bool Image::Load(ImageData* imgData, const AEMath::Vector2i& pos)
+{
+	if (!imgData) return false;
+
+	glBindTexture(GL_TEXTURE_2D, m_TexID);
+	imgData->Lock();
+	int width = imgData->width;
+	int height = imgData->height;
+	TextureFormat tf = ConvertColorFormat(imgData->format);
+	glTexSubImage2D(
+		GL_TEXTURE_2D
+		, 0
+		, pos.x
+		, pos.y
+		, imgData->width
+		, imgData->height
+		, tf.externalformat
+		, tf.type
+		, imgData->pixels
+	);
+	imgData->Unlock();
+	GLenum err = glGetError();
+	if (err != GL_NO_ERROR)
+		throw Exception("OpenGL glTexSubImage2D cause error, error code=%d", err);
+	glBindTexture(GL_TEXTURE_2D, 0);
+
+	return true;
+}
+
+uint32 Image::GetWidth()
+{
+	return m_Width;
+}
+
+uint32 Image::GetHeight()
+{
+	return m_Height;
+}
+
+namespace_end
+namespace_end
\ No newline at end of file