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Bug 1399

Summary: Render Directly to a streaming texture
Product: SDL_ttf Reporter: Rodrigo Cardoso <rodrigo.alfenas>
Component: miscAssignee: Sam Lantinga <slouken>
Status: ASSIGNED --- QA Contact: Sam Lantinga <slouken>
Severity: enhancement    
Priority: P2 CC: rodrigo.alfenas, sylvain.becker
Version: unspecified   
Hardware: All   
OS: All   
Attachments: protype patch

Description Rodrigo Cardoso 2012-01-27 10:24:11 UTC 
That's it, the summary is self explanatory =]

Would be much easier and faster when using SDL_Textures.

thanks!
Comment 1 Sam Lantinga 2012-01-28 07:27:13 UTC 
This is something we can add in the SDL2 upgrade.
Comment 2 Sylvain 2018-11-13 09:48:34 UTC 
Created attachment 3484 [details]
protype patch

This is a prototype for rendering text directly to streaming texture.
patch is diff'ed with bug 4361, and test-case app will be updated in bug 4374

It renders to a SD_Texture created with SDL_TEXTUREACCESS_STREAMING and format SDL_PIXELFORMAT_ARGB8888.
Only "Blended" is done. Not sure that it makes senses to do Solid/Shaded, as they are palletized surfaces and that would require a conversion.

Prototype/name of the function is:

int TTF_RenderUTF8_Texture(TTF_Font *font, SDL_Texture *texture, const char *text, SDL_Color fg)

But it should probably also include some dest x/y position.
The function doesn't add much rendering complexity as it only prepares datas and calls "Render_Line()".