SDL_ttf: Creating surfaces every time

This is a snippet from a game I’m developing:

Code:
void BottomRightView::Render()
{
auto renderer = this->GetRenderer();

SDL_DestroyTexture(this->fontTexture);
SDL_FreeSurface(this->fontSurface);

std::string linesStr;
this->player->GetPlayerStateSummary(linesStr);

// TODO recreating these every time seems very inefficient
this->fontSurface = TTF_RenderText_Blended_Wrapped(font, linesStr.c_str(), this->fontColour, 300);
this->fontTexture = SDL_CreateTextureFromSurface(renderer, fontSurface);

SDL_Rect dstrect = { 504, 336, 0, 0 };
SDL_QueryTexture(fontTexture, NULL, NULL, &dstrect.w, &dstrect.h);

SDL_RenderCopy(renderer, this->fontTexture, NULL, &dstrect);

}

Since the player state that I’m drawing to the screen may change at any time, I’m having to create a new surface and texture every frame.

This seems really wasteful. Is there a more efficient way to do this?------------------------
Daniel D’Agostino

You could keep the old texture until status string actually changes, and then update the texture.

Jonny DOn Thu, Jan 5, 2017 at 1:39 PM, capehill <juha.niemimaki at gmail.com> wrote:

You could keep the old texture until status string actually changes, and
then update the texture.


SDL mailing list
SDL at lists.libsdl.org
http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org

Jonny D wrote:

http://stackoverflow.com/questions/29064904/rendering-fonts-and-text-with-sdl2-efficiently/29725751#29725751 (http://stackoverflow.com/questions/29064904/rendering-fonts-and-text-with-sdl2-efficiently/29725751#29725751)

Jonny D

Interesting project! Is there any documentation on the library’s capabilities other than the tiny snippet on the Github project homepage?------------------------
Daniel D’Agostino

Nope! That snippet should eventually be expanded, but my time right now is
very limited. Check the header (SDL_FontCache.h) and the test program for
more details. I’m also around for any questions and if that makes me
produce useful information, I’ll add it to the project page.

Jonny DOn Fri, Jan 6, 2017 at 7:24 AM, dandago wrote:

Jonny D wrote:

http://stackoverflow.com/questions/29064904/rendering-
fonts-and-text-with-sdl2-efficiently/29725751#29725751

Jonny D

Interesting project! Is there any documentation on the library’s
capabilities other than the tiny snippet on the Github project homepage?


Daniel D’Agostino
http://gigi.nullneuron.net/gigilabs/


SDL mailing list
SDL at lists.libsdl.org
http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org