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[client] opengl: fixed broken mipmap logic

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mipmapping is turned off for images that are scaled up a it degrades the
output quality.
This commit is contained in:
Geoffrey McRae 2017-12-16 11:25:01 +11:00
parent 7c5b2b5c1c
commit 287b983d27
1 changed files with 10 additions and 9 deletions
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19
client/renderers/opengl.c
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@ -69,7 +69,6 @@ struct LGR_OpenGL
int fpsList;
int mouseList;
LG_RendererRect destRect;
bool mipmap;
bool hasTextures;
GLuint textures[TEXTURE_COUNT];
@ -365,7 +364,7 @@ void lgr_opengl_on_resize(void * opaque, const int width, const int height, cons
if (!this || !this->configured)
return;
this->window.x = width;
this->window.x = width;
this->window.y = height;
memcpy(&this->destRect, &destRect, sizeof(LG_RendererRect));
@ -634,15 +633,17 @@ bool lgr_opengl_on_frame_event(void * opaque, const uint8_t * data)
(this->format.width > this->destRect.w) ||
(this->format.height > this->destRect.h));
if (this->mipmap != mipmap)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
mipmap ? GL_LINEAR_MIPMAP_LINEAR : GL_LINEAR);
this->mipmap = mipmap;
}
if (mipmap)
{
glGenerateMipmap(GL_TEXTURE_2D);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
}
else
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
}
glBindTexture(GL_TEXTURE_2D, 0);