diff options
| author | chai <chaifix@163.com> | 2021-10-30 22:59:42 +0800 |
|---|---|---|
| committer | chai <chaifix@163.com> | 2021-10-30 22:59:42 +0800 |
| commit | 26f05c6e3dcac9995345fb5a2b031be7e3ea79e9 (patch) | |
| tree | fc32c3e9d235817df0be331a6100b7f8263facab /Runtime/Graphics/Texture.cpp | |
| parent | c3e259f4d29e9bdcb73617ad8e4d71f117b4d289 (diff) | |
*TextGenerator
Diffstat (limited to 'Runtime/Graphics/Texture.cpp')
| -rw-r--r-- | Runtime/Graphics/Texture.cpp | 118 |
1 files changed, 117 insertions, 1 deletions
diff --git a/Runtime/Graphics/Texture.cpp b/Runtime/Graphics/Texture.cpp index 6b682e9..f92c094 100644 --- a/Runtime/Graphics/Texture.cpp +++ b/Runtime/Graphics/Texture.cpp @@ -3,7 +3,6 @@ using namespace LuaBind;
-
Texture::Texture(TextureSetting setting, ImageData* imgData)
: NativeClass<Texture>()
{
@@ -94,7 +93,124 @@ void Texture::Init(TextureSetting setting, ImageData* imgData) );
}
+Texture::Texture(TextureSetting setting, int w, int h)
+ : NativeClass<Texture>()
+{
+ m_KeepPixelData = false;
+
+ m_Width = w;
+ m_Height = h;
+ m_Type = setting.type;
+ m_Format = setting.format;
+ m_WrapMode = setting.wrapMode;
+ m_FilterMode = setting.filterMode;
+ m_KeepPixelData = setting.keepImageData;
+
+ glGenTextures(1, &m_GPUID);
+ glBindTexture(GL_TEXTURE_2D, m_GPUID);
+
+ CheckGLError(
+ glDeleteTextures(1, &m_GPUID);
+ glBindTexture(GL_TEXTURE_2D, 0);
+ throw TextureException(error);
+ );
+
+ switch (m_WrapMode) {
+ case ETextureWrapMode::Clamp:
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
+ break;
+ case ETextureWrapMode::Repeat:
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+ break;
+ case ETextureWrapMode::Mirror:
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT);
+ break;
+ default:
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
+ break;
+ }
+
+ CheckGLError(
+ glDeleteTextures(1, &m_GPUID);
+ glBindTexture(GL_TEXTURE_2D, 0);
+ throw TextureException(error);
+ );
+
+ switch (m_FilterMode) {
+ case ETextureFilterMode::Linear:
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ break;
+ case ETextureFilterMode::Nearest:
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ break;
+ default:
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ break;
+ }
+ GLenum internalFormat = GL_RGB;
+ if (m_Format == ETextureFormat::R8)
+ {
+ internalFormat = GL_RED;
+ }
+
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+
+ glTexImage2D(GL_TEXTURE_2D, 0, internalFormat, w, h, 0, GL_RED, GL_UNSIGNED_BYTE, NULL);
+
+ CheckGLError(
+ glDeleteTextures(1, &m_GPUID);
+ glBindTexture(GL_TEXTURE_2D, 0);
+ throw TextureException(error);
+ );
+}
+
Texture::~Texture()
{
glDeleteTextures(1, &m_GPUID);
+}
+
+void Texture::UpdateSubImage(Internal::Rect rect, int format, int type, const void* data)
+{
+ glBindTexture(GL_TEXTURE_2D, m_GPUID);
+
+ CheckGLError(
+ glBindTexture(GL_TEXTURE_2D, 0);
+ throw TextureException(error);
+ );
+
+ GLenum fmt = GL_RED;
+ switch (format)
+ {
+ case EPixelFormat::PixelFormat_BGR: fmt = GL_BGR; break;
+ case EPixelFormat::PixelFormat_BGRA:fmt = GL_BGRA; break;
+ case EPixelFormat::PixelFormat_R: fmt = GL_RED; break;
+ case EPixelFormat::PixelFormat_RG: fmt = GL_RG; break;
+ case EPixelFormat::PixelFormat_RGB: fmt = GL_RGB; break;
+ case EPixelFormat::PixelFormat_RGBA: fmt = GL_RGBA; break;
+ }
+ GLenum t = GL_UNSIGNED_BYTE;
+ switch (type)
+ {
+ case EPixelElementType::PixelType_UNSIGNED_BYTE: t = GL_UNSIGNED_BYTE; break;
+ case EPixelElementType::PixelType_UNSIGNED_INT: t = GL_UNSIGNED_INT; break;
+ case EPixelElementType::PixelType_BYTE: t = GL_BYTE; break;
+ case EPixelElementType::PixelType_INT: t = GL_INT; break;
+ case EPixelElementType::PixelType_FLOAT: t = GL_FLOAT; break;
+ }
+
+ glTexSubImage2D(GL_TEXTURE_2D, 0, rect.x, rect.y, rect.width, rect.height, fmt, t, data);
+
+ CheckGLError(
+ glBindTexture(GL_TEXTURE_2D, 0);
+ throw TextureException(error);
+ );
+
+ glBindTexture(GL_TEXTURE_2D, 0);
}
\ No newline at end of file |