int
SDL_UpdateTexture(SDL_Texture * texture, const SDL_Rect * rect,
const void *pixels, int pitch)
{
SDL_Renderer *renderer;
SDL_Rect full_rect;
CHECK_TEXTURE_MAGIC(texture, -1);
if (!rect) {
full_rect.x = 0;
full_rect.y = 0;
full_rect.w = texture->w;
full_rect.h = texture->h;
rect = &full_rect;
}
if (texture->yuv) {
return SDL_UpdateTextureYUV(texture, rect, pixels, pitch);
} else if (texture->native) {
return SDL_UpdateTextureNative(texture, rect, pixels, pitch);
} else {
renderer = texture->renderer;
return renderer->UpdateTexture(renderer, texture, rect, pixels, pitch);
}
}
int
SDL_SetRenderTarget(SDL_Renderer *renderer, SDL_Texture *texture)
{
SDL_Rect viewport;
if (!SDL_RenderTargetSupported(renderer)) {
SDL_Unsupported();
return -1;
}
if (texture == renderer->target) {
/* Nothing to do! */
return 0;
}
/* texture == NULL is valid and means reset the target to the window */
if (texture) {
CHECK_TEXTURE_MAGIC(texture, -1);
if (renderer != texture->renderer) {
SDL_SetError("Texture was not created with this renderer");
return -1;
}
if (!(texture->access & SDL_TEXTUREACCESS_TARGET)) {
SDL_SetError("Texture not created with SDL_TEXTUREACCESS_TARGET");
return -1;
}
if (texture->native) {
/* Always render to the native texture */
texture = texture->native;
}
}
if (texture && !renderer->target) {
/* Make a backup of the viewport */
renderer->viewport_backup = renderer->viewport;
}
renderer->target = texture;
if (renderer->SetRenderTarget(renderer, texture) < 0) {
return -1;
}
if (texture) {
viewport.x = 0;
viewport.y = 0;
viewport.w = texture->w;
viewport.h = texture->h;
} else {
viewport = renderer->viewport_backup;
}
if (SDL_RenderSetViewport(renderer, &viewport) < 0) {
return -1;
}
/* All set! */
return 0;
}
int
SDL_GetTextureBlendMode(SDL_Texture * texture, SDL_BlendMode *blendMode)
{
CHECK_TEXTURE_MAGIC(texture, -1);
if (blendMode) {
*blendMode = texture->blendMode;
}
return 0;
}
int
SDL_GetTextureAlphaMod(SDL_Texture * texture, Uint8 * alpha)
{
CHECK_TEXTURE_MAGIC(texture, -1);
if (alpha) {
*alpha = texture->a;
}
return 0;
}
int
SDL_SetTextureBlendMode(SDL_Texture * texture, SDL_BlendMode blendMode)
{
SDL_Renderer *renderer;
CHECK_TEXTURE_MAGIC(texture, -1);
renderer = texture->renderer;
texture->blendMode = blendMode;
if (texture->native) {
return SDL_SetTextureBlendMode(texture->native, blendMode);
} else if (renderer->SetTextureBlendMode) {
return renderer->SetTextureBlendMode(renderer, texture);
} else {
return 0;
}
}
int
SDL_GetTextureColorMod(SDL_Texture * texture, Uint8 * r, Uint8 * g,
Uint8 * b)
{
CHECK_TEXTURE_MAGIC(texture, -1);
if (r) {
*r = texture->r;
}
if (g) {
*g = texture->g;
}
if (b) {
*b = texture->b;
}
return 0;
}
int
SDL_QueryTexture(SDL_Texture * texture, Uint32 * format, int *access,
int *w, int *h)
{
CHECK_TEXTURE_MAGIC(texture, -1);
if (format) {
*format = texture->format;
}
if (access) {
*access = texture->access;
}
if (w) {
*w = texture->w;
}
if (h) {
*h = texture->h;
}
return 0;
}
int
SDL_SetTextureAlphaMod(SDL_Texture * texture, Uint8 alpha)
{
SDL_Renderer *renderer;
CHECK_TEXTURE_MAGIC(texture, -1);
renderer = texture->renderer;
if (alpha < 255) {
texture->modMode |= SDL_TEXTUREMODULATE_ALPHA;
} else {
texture->modMode &= ~SDL_TEXTUREMODULATE_ALPHA;
}
texture->a = alpha;
if (texture->native) {
return SDL_SetTextureAlphaMod(texture->native, alpha);
} else if (renderer->SetTextureAlphaMod) {
return renderer->SetTextureAlphaMod(renderer, texture);
} else {
return 0;
}
}
int
SDL_SetTextureColorMod(SDL_Texture * texture, Uint8 r, Uint8 g, Uint8 b)
{
SDL_Renderer *renderer;
CHECK_TEXTURE_MAGIC(texture, -1);
renderer = texture->renderer;
if (r < 255 || g < 255 || b < 255) {
texture->modMode |= SDL_TEXTUREMODULATE_COLOR;
} else {
texture->modMode &= ~SDL_TEXTUREMODULATE_COLOR;
}
texture->r = r;
texture->g = g;
texture->b = b;
if (texture->native) {
return SDL_SetTextureColorMod(texture->native, r, g, b);
} else if (renderer->SetTextureColorMod) {
return renderer->SetTextureColorMod(renderer, texture);
} else {
return 0;
}
}
int
SDL_SetRenderTarget(SDL_Renderer *renderer, SDL_Texture *texture)
{
if (!SDL_RenderTargetSupported(renderer)) {
return SDL_Unsupported();
}
if (texture == renderer->target) {
/* Nothing to do! */
return 0;
}
/* texture == NULL is valid and means reset the target to the window */
if (texture) {
CHECK_TEXTURE_MAGIC(texture, -1);
if (renderer != texture->renderer) {
return SDL_SetError("Texture was not created with this renderer");
}
if (texture->access != SDL_TEXTUREACCESS_TARGET) {
return SDL_SetError("Texture not created with SDL_TEXTUREACCESS_TARGET");
}
if (texture->native) {
/* Always render to the native texture */
texture = texture->native;
}
}
if (texture && !renderer->target) {
/* Make a backup of the viewport */
renderer->viewport_backup = renderer->viewport;
renderer->clip_rect_backup = renderer->clip_rect;
renderer->scale_backup = renderer->scale;
renderer->logical_w_backup = renderer->logical_w;
renderer->logical_h_backup = renderer->logical_h;
}
renderer->target = texture;
if (renderer->SetRenderTarget(renderer, texture) < 0) {
return -1;
}
if (texture) {
renderer->viewport.x = 0;
renderer->viewport.y = 0;
renderer->viewport.w = texture->w;
renderer->viewport.h = texture->h;
renderer->scale.x = 1.0f;
renderer->scale.y = 1.0f;
renderer->logical_w = texture->w;
renderer->logical_h = texture->h;
} else {
renderer->viewport = renderer->viewport_backup;
renderer->clip_rect = renderer->clip_rect_backup;
renderer->scale = renderer->scale_backup;
renderer->logical_w = renderer->logical_w_backup;
renderer->logical_h = renderer->logical_h_backup;
}
if (renderer->UpdateViewport(renderer) < 0) {
return -1;
}
if (renderer->UpdateClipRect(renderer) < 0) {
return -1;
}
/* All set! */
return 0;
}
