[SDL2]-SDL_Rect Problem In SDL_RenderCopyEx()

SDL Development
#1

[SDL2]-SDL_Rect Problem In SDL_RenderCopyEx()…

Hi,

I am trying to draw an SDL texture to the screen with the texture’s default width and height.
This is the code I have:
Code:
//-------------------------------------------------------------------------------------------------
void Visuals::DrawSpriteOntoScreen(void)
{
SDL_Rect *destinationRect;
Uint32 *textureFormat;
int *textureAccess;
int *textureWidth;
int *textureHeight;

destinationRect->x = 0;
destinationRect->y = 0;
SDL_QueryTexture(Sprite, textureFormat, textureAccess, textureWidth, textureHeight);
destinationRect->w = *textureWidth;
destinationRect->h = *textureHeight;

SDL_RenderCopyEx(Renderer, Sprite, NULL, destinationRect, 0, NULL, SDL_FLIP_NONE);

SDL_RenderPresent(Renderer);

}

//-------------------------------------------------------------------------------------------------

It compiles fine, but the texture fills the screen?

Any help would be appreciated, thanks!------------------------
JeZ+Lee
JessePalser <AT> Gmail <DOT> com
16BitSoft®
Video Game Design Studio
www.16BitSoft.com

#2

Code:
//-------------------------------------------------------------------------------------------------
void Visuals::DrawSpriteOntoScreen(void)
{
SDL_Rect destinationRect;
Uint32 textureFormat;
int textureAccess;
int textureWidth;
int textureHeight;

destinationRect.x = 0;
destinationRect.y = 0;
SDL_QueryTexture(Sprite, &textureFormat, &textureAccess, &textureWidth, &textureHeight);
destinationRect.w = textureWidth;
destinationRect.h = textureHeight;

SDL_RenderCopyEx(Renderer, Sprite, NULL, &destinationRect, 0, NULL, SDL_FLIP_NONE);

SDL_RenderPresent(Renderer);

}

//-------------------------------------------------------------------------------------------------------------------------
JeZ+Lee
JessePalser <AT> Gmail <DOT> com
16BitSoft®
Video Game Design Studio
www.16BitSoft.com

#3

I’m more surprised that isn’t giving you a crash. You’re supposed to
pass pointers to the int variables where you want the data to be
stored to SDL_QueryTexture (i.e. use the & operator), not pointer
variables.

2013/8/13, JeZ-l-Lee :> [SDL2]-SDL_Rect Problem In SDL_RenderCopyEx()…

Hi,

I am trying to draw an SDL texture to the screen with the texture’s default
width and height.
This is the code I have:
Code:
//-------------------------------------------------------------------------------------------------
void Visuals::DrawSpriteOntoScreen(void)
{
SDL_Rect *destinationRect;
Uint32 *textureFormat;
int *textureAccess;
int *textureWidth;
int *textureHeight;

destinationRect->x = 0;
destinationRect->y = 0;
SDL_QueryTexture(Sprite, textureFormat, textureAccess, textureWidth,

textureHeight);
destinationRect->w = *textureWidth;
destinationRect->h = *textureHeight;

SDL_RenderCopyEx(Renderer, Sprite, NULL, destinationRect, 0, NULL,

SDL_FLIP_NONE);

SDL_RenderPresent(Renderer);

}

//-------------------------------------------------------------------------------------------------

It compiles fine, but the texture fills the screen?

Any help would be appreciated, thanks!

JeZ+Lee
JessePalser <AT> Gmail <DOT> com
16BitSoft®
Video Game Design Studio
www.16BitSoft.com

#4

Is there something wrong with the order in which the e-mails arrive to
the mailing list? Because they seem to be reaching out of order for me
:expressionless:

#5

Is there something wrong with the order in which the e-mails arrive to
the mailing list? Because they seem to be reaching out of order for me
:expressionless:

This is pretty standard for email. Also, if your client
orders the mail by date, it may well use the OP’s date
not the list reflector dates.On 13/08/2013, at 5:35 PM, Sik the hedgehog wrote:

–
john skaller
@john_skaller
http://felix-lang.org

#6

Yeah, but I mean, I see a message, I reply, and then later I get the
following message which was from before I replied but I didn’t get
until later. That’s the issue.

2013/8/13, john skaller :>

On 13/08/2013, at 5:35 PM, Sik the hedgehog wrote:

Is there something wrong with the order in which the e-mails arrive to
the mailing list? Because they seem to be reaching out of order for me
:expressionless:

This is pretty standard for email. Also, if your client
orders the mail by date, it may well use the OP’s date
not the list reflector dates.

–
john skaller
skaller at users.sourceforge.net
http://felix-lang.org

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

#7

Yeah, but I mean, I see a message, I reply, and then later I get the
following message which was from before I replied but I didn’t get
until later. That’s the issue.

Yes, I sometimes see the reply to a message I haven’t received yet.On 13/08/2013, at 7:57 PM, Sik the hedgehog wrote:

–
john skaller
@john_skaller
http://felix-lang.org