static int
GDI_RenderDrawPoints(SDL_Renderer * renderer, const SDL_Point * points,
int count)
{
GDI_RenderData *data = (GDI_RenderData *) renderer->driverdata;
int i;
COLORREF color;
if (data->makedirty) {
/* Get the smallest rectangle that contains everything */
SDL_Window *window = renderer->window;
SDL_Rect rect;
rect.x = 0;
rect.y = 0;
rect.w = window->w;
rect.h = window->h;
if (!SDL_EnclosePoints(points, count, &rect, &rect)) {
/* Nothing to draw */
return 0;
}
SDL_AddDirtyRect(&data->dirty, &rect);
}
color = RGB(renderer->r, renderer->g, renderer->b);
for (i = 0; i < count; ++i) {
SetPixel(data->current_hdc, points[i].x, points[i].y, color);
}
return 0;
}
static int
DirectFB_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, int markDirty,
void **pixels, int *pitch)
{
DirectFB_TextureData *texturedata =
(DirectFB_TextureData *) texture->driverdata;
DFBResult ret;
if (markDirty) {
SDL_AddDirtyRect(&texturedata->dirty, rect);
}
if (texturedata->display) {
void *fdata;
int fpitch;
SDL_DFB_CHECKERR(texturedata->surface->Lock(texturedata->surface,
DSLF_WRITE | DSLF_READ,
&fdata, &fpitch));
*pitch = fpitch;
*pixels = fdata;
} else {
*pixels =
(void *) ((Uint8 *) texturedata->pixels +
rect->y * texturedata->pitch +
rect->x * SDL_BYTESPERPIXEL(texture->format));
*pitch = texturedata->pitch;
}
return 0;
error:
return -1;
}
static int
GDI_RenderDrawRects(SDL_Renderer * renderer, const SDL_Rect ** rects,
int count)
{
GDI_RenderData *data = (GDI_RenderData *) renderer->driverdata;
HPEN pen;
POINT vertices[5];
int i, status = 1;
if (data->makedirty) {
SDL_Window *window = renderer->window;
SDL_Rect clip, rect;
clip.x = 0;
clip.y = 0;
clip.w = window->w;
clip.h = window->h;
for (i = 0; i < count; ++i) {
if (SDL_IntersectRect(rects[i], &clip, &rect)) {
SDL_AddDirtyRect(&data->dirty, &rect);
}
}
}
/* Should we cache the pen? .. it looks like GDI does for us. :) */
pen = CreatePen(PS_SOLID, 1, RGB(renderer->r, renderer->g, renderer->b));
SelectObject(data->current_hdc, pen);
for (i = 0; i < count; ++i) {
const SDL_Rect *rect = rects[i];
vertices[0].x = rect->x;
vertices[0].y = rect->y;
vertices[1].x = rect->x+rect->w-1;
vertices[1].y = rect->y;
vertices[2].x = rect->x+rect->w-1;
vertices[2].y = rect->y+rect->h-1;
vertices[3].x = rect->x;
vertices[3].y = rect->y+rect->h-1;
vertices[4].x = rect->x;
vertices[4].y = rect->y;
status &= Polyline(data->current_hdc, vertices, 5);
}
DeleteObject(pen);
if (!status) {
WIN_SetError("Polyline()");
return -1;
}
return 0;
}
static int
GDI_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * srcrect, const SDL_Rect * dstrect)
{
GDI_RenderData *data = (GDI_RenderData *) renderer->driverdata;
GDI_TextureData *texturedata = (GDI_TextureData *) texture->driverdata;
if (data->makedirty) {
SDL_AddDirtyRect(&data->dirty, dstrect);
}
SelectObject(data->memory_hdc, texturedata->hbm);
if (texturedata->hpal) {
SelectPalette(data->memory_hdc, texturedata->hpal, TRUE);
RealizePalette(data->memory_hdc);
}
if (texture->blendMode & (SDL_BLENDMODE_MASK | SDL_BLENDMODE_BLEND)) {
#ifdef _WIN32_WCE
SDL_SetError("Texture has blendmode not supported under WinCE");
return -1;
#else
BLENDFUNCTION blendFunc = {
AC_SRC_OVER,
0,
texture->a,
AC_SRC_NO_PREMULT_ALPHA/*AC_SRC_ALPHA*/
};
if (!AlphaBlend
(data->current_hdc, dstrect->x, dstrect->y, dstrect->w,
dstrect->h, data->memory_hdc, srcrect->x, srcrect->y, srcrect->w,
srcrect->h, blendFunc)) {
WIN_SetError("AlphaBlend()");
return -1;
}
#endif
} else {
if (srcrect->w == dstrect->w && srcrect->h == dstrect->h) {
if (!BitBlt
(data->current_hdc, dstrect->x, dstrect->y, dstrect->w,
srcrect->h, data->memory_hdc, srcrect->x, srcrect->y,
SRCCOPY)) {
WIN_SetError("BitBlt()");
return -1;
}
} else {
if (!StretchBlt
(data->current_hdc, dstrect->x, dstrect->y, dstrect->w,
dstrect->h, data->memory_hdc, srcrect->x, srcrect->y,
srcrect->w, srcrect->h, SRCCOPY)) {
WIN_SetError("StretchBlt()");
return -1;
}
}
}
return 0;
}
static int
GDI_RenderDrawLines(SDL_Renderer * renderer, const SDL_Point * points,
int count)
{
GDI_RenderData *data = (GDI_RenderData *) renderer->driverdata;
HPEN pen;
BOOL status;
if (data->makedirty) {
/* Get the smallest rectangle that contains everything */
SDL_Window *window = renderer->window;
SDL_Rect clip, rect;
clip.x = 0;
clip.y = 0;
clip.w = window->w;
clip.h = window->h;
SDL_EnclosePoints(points, count, NULL, &rect);
if (!SDL_IntersectRect(&rect, &clip, &rect)) {
/* Nothing to draw */
return 0;
}
SDL_AddDirtyRect(&data->dirty, &rect);
}
/* Should we cache the pen? .. it looks like GDI does for us. :) */
pen = CreatePen(PS_SOLID, 1, RGB(renderer->r, renderer->g, renderer->b));
SelectObject(data->current_hdc, pen);
{
LPPOINT p = SDL_stack_alloc(POINT, count);
int i;
for (i = 0; i < count; ++i) {
p[i].x = points[i].x;
p[i].y = points[i].y;
}
status = Polyline(data->current_hdc, p, count);
SDL_stack_free(p);
}
DeleteObject(pen);
/* Need to close the endpoint of the line */
if (points[0].x != points[count-1].x || points[0].y != points[count-1].y) {
SetPixel(data->current_hdc, points[count-1].x, points[count-1].y,
RGB(renderer->r, renderer->g, renderer->b));
}
if (!status) {
WIN_SetError("Polyline()");
return -1;
}
return 0;
}
static void
GLES_DirtyTexture(SDL_Renderer * renderer, SDL_Texture * texture,
int numrects, const SDL_Rect * rects)
{
GLES_TextureData *data = (GLES_TextureData *) texture->driverdata;
int i;
for (i = 0; i < numrects; ++i) {
SDL_AddDirtyRect(&data->dirty, &rects[i]);
}
}
static int
X11_RenderDrawPoints(SDL_Renderer * renderer, const SDL_Point * points,
int count)
{
X11_RenderData *data = (X11_RenderData *) renderer->driverdata;
SDL_Window *window = renderer->window;
unsigned long foreground;
XPoint *xpoints, *xpoint;
int i, xcount;
if (data->makedirty) {
SDL_Rect rect;
/* Get the smallest rectangle that contains everything */
rect.x = 0;
rect.y = 0;
rect.w = window->w;
rect.h = window->h;
if (!SDL_EnclosePoints(points, count, &rect, &rect)) {
/* Nothing to draw */
return 0;
}
SDL_AddDirtyRect(&data->dirty, &rect);
}
foreground = renderdrawcolor(renderer, 1);
XSetForeground(data->display, data->gc, foreground);
xpoint = xpoints = SDL_stack_alloc(XPoint, count);
xcount = 0;
for (i = 0; i < count; ++i) {
int x = points[i].x;
int y = points[i].y;
if (x < 0 || x >= window->w || y < 0 || y >= window->h) {
continue;
}
xpoint->x = (short)x;
xpoint->y = (short)y;
++xpoint;
++xcount;
}
if (xcount > 0) {
XDrawPoints(data->display, data->drawable, data->gc, xpoints, xcount,
CoordModeOrigin);
}
SDL_stack_free(xpoints);
return 0;
}
static int
SW_RenderPoint(SDL_Renderer * renderer, int x, int y)
{
SW_RenderData *data = (SW_RenderData *) renderer->driverdata;
SDL_Rect rect;
int status;
rect.x = x;
rect.y = y;
rect.w = 1;
rect.h = 1;
if (data->renderer->info.flags & SDL_RENDERER_PRESENTCOPY) {
SDL_AddDirtyRect(&data->dirty, &rect);
}
if (data->renderer->LockTexture(data->renderer,
data->texture[data->current_texture],
&rect, 1,
&data->surface.pixels,
&data->surface.pitch) < 0) {
return -1;
}
data->surface.w = 1;
data->surface.h = 1;
data->surface.clip_rect.w = 1;
data->surface.clip_rect.h = 1;
if (renderer->blendMode == SDL_BLENDMODE_NONE ||
renderer->blendMode == SDL_BLENDMODE_MASK) {
Uint32 color =
SDL_MapRGBA(data->surface.format, renderer->r, renderer->g,
renderer->b, renderer->a);
status = SDL_DrawPoint(&data->surface, 0, 0, color);
} else {
status =
SDL_BlendPoint(&data->surface, 0, 0, renderer->blendMode,
renderer->r, renderer->g, renderer->b,
renderer->a);
}
data->renderer->UnlockTexture(data->renderer,
data->texture[data->current_texture]);
return status;
}
static int
GLES_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, int markDirty, void **pixels,
int *pitch)
{
GLES_TextureData *data = (GLES_TextureData *) texture->driverdata;
if (markDirty) {
SDL_AddDirtyRect(&data->dirty, rect);
}
*pixels =
(void *) ((Uint8 *) data->pixels + rect->y * data->pitch +
rect->x * SDL_BYTESPERPIXEL(texture->format));
*pitch = data->pitch;
return 0;
}
static int
GDI_RenderFillRects(SDL_Renderer * renderer, const SDL_Rect ** rects,
int count)
{
GDI_RenderData *data = (GDI_RenderData *) renderer->driverdata;
RECT rc;
HBRUSH brush;
int i, status = 1;
if (data->makedirty) {
SDL_Window *window = renderer->window;
SDL_Rect clip, rect;
clip.x = 0;
clip.y = 0;
clip.w = window->w;
clip.h = window->h;
for (i = 0; i < count; ++i) {
if (SDL_IntersectRect(rects[i], &clip, &rect)) {
SDL_AddDirtyRect(&data->dirty, &rect);
}
}
}
/* Should we cache the brushes? .. it looks like GDI does for us. :) */
brush = CreateSolidBrush(RGB(renderer->r, renderer->g, renderer->b));
SelectObject(data->current_hdc, brush);
for (i = 0; i < count; ++i) {
const SDL_Rect *rect = rects[i];
rc.left = rect->x;
rc.top = rect->y;
rc.right = rect->x + rect->w;
rc.bottom = rect->y + rect->h;
status &= FillRect(data->current_hdc, &rc, brush);
}
DeleteObject(brush);
if (!status) {
WIN_SetError("FillRect()");
return -1;
}
return 0;
}
static int
X11_RenderFillRects(SDL_Renderer * renderer, const SDL_Rect ** rects, int count)
{
X11_RenderData *data = (X11_RenderData *) renderer->driverdata;
SDL_Window *window = renderer->window;
SDL_Rect clip, rect;
unsigned long foreground;
XRectangle *xrects, *xrect;
int i, xcount;
clip.x = 0;
clip.y = 0;
clip.w = window->w;
clip.h = window->h;
foreground = renderdrawcolor(renderer, 1);
XSetForeground(data->display, data->gc, foreground);
xrect = xrects = SDL_stack_alloc(XRectangle, count);
xcount = 0;
for (i = 0; i < count; ++i) {
if (!SDL_IntersectRect(rects[i], &clip, &rect)) {
continue;
}
xrect->x = (short)rect.x;
xrect->y = (short)rect.y;
xrect->width = (unsigned short)rect.w;
xrect->height = (unsigned short)rect.h;
++xrect;
++xcount;
if (data->makedirty) {
SDL_AddDirtyRect(&data->dirty, &rect);
}
}
if (xcount > 0) {
XFillRectangles(data->display, data->drawable, data->gc,
xrects, xcount);
}
SDL_stack_free(xpoints);
return 0;
}
static int
SW_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * srcrect, const SDL_Rect * dstrect)
{
SW_RenderData *data = (SW_RenderData *) renderer->driverdata;
//SDL_Window *window = SDL_GetWindowFromID(renderer->window);
int status;
if (data->renderer->info.flags & SDL_RENDERER_PRESENTCOPY) {
SDL_AddDirtyRect(&data->dirty, dstrect);
}
if (data->renderer->LockTexture(data->renderer,
data->texture[data->current_texture],
dstrect, 1, &data->surface.pixels,
&data->surface.pitch) < 0) {
return -1;
}
if (SDL_ISPIXELFORMAT_FOURCC(texture->format)) {
status =
SDL_SW_CopyYUVToRGB((SDL_SW_YUVTexture *) texture->driverdata,
srcrect, data->format, dstrect->w, dstrect->h,
data->surface.pixels, data->surface.pitch);
} else {
SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
SDL_Rect real_srcrect = *srcrect;
SDL_Rect real_dstrect;
data->surface.w = dstrect->w;
data->surface.h = dstrect->h;
data->surface.clip_rect.w = dstrect->w;
data->surface.clip_rect.h = dstrect->h;
real_dstrect = data->surface.clip_rect;
status =
SDL_LowerBlit(surface, &real_srcrect, &data->surface,
&real_dstrect);
}
data->renderer->UnlockTexture(data->renderer,
data->texture[data->current_texture]);
return status;
}
static int
SW_RenderFill(SDL_Renderer * renderer, const SDL_Rect * rect)
{
SW_RenderData *data = (SW_RenderData *) renderer->driverdata;
SDL_Rect real_rect;
int status;
if (data->renderer->info.flags & SDL_RENDERER_PRESENTCOPY) {
SDL_AddDirtyRect(&data->dirty, rect);
}
if (data->renderer->LockTexture(data->renderer,
data->texture[data->current_texture],
rect, 1, &data->surface.pixels,
&data->surface.pitch) < 0) {
return -1;
}
data->surface.w = rect->w;
data->surface.h = rect->h;
data->surface.clip_rect.w = rect->w;
data->surface.clip_rect.h = rect->h;
real_rect = data->surface.clip_rect;
if (renderer->blendMode == SDL_BLENDMODE_NONE) {
Uint32 color =
SDL_MapRGBA(data->surface.format, renderer->r, renderer->g,
renderer->b, renderer->a);
status = SDL_FillRect(&data->surface, &real_rect, color);
} else {
status =
SDL_BlendRect(&data->surface, &real_rect, renderer->blendMode,
renderer->r, renderer->g, renderer->b, renderer->a);
}
data->renderer->UnlockTexture(data->renderer,
data->texture[data->current_texture]);
return status;
}
static int
DirectFB_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, void **pixels, int *pitch)
{
DirectFB_TextureData *texturedata =
(DirectFB_TextureData *) texture->driverdata;
DirectFB_ActivateRenderer(renderer);
#if 0
if (markDirty) {
SDL_AddDirtyRect(&texturedata->dirty, rect);
}
#endif
if (texturedata->display) {
void *fdata;
int fpitch;
SDL_DFB_CHECKERR(texturedata->surface->Lock(texturedata->surface,
DSLF_WRITE | DSLF_READ,
&fdata, &fpitch));
*pitch = fpitch;
*pixels = fdata;
} else {
*pixels =
(void *) ((Uint8 *) texturedata->pixels +
rect->y * texturedata->pitch +
rect->x * DFB_BYTES_PER_PIXEL(DirectFB_SDLToDFBPixelFormat(texture->format)));
*pitch = texturedata->pitch;
texturedata->isDirty = 1;
}
return 0;
error:
return -1;
}
static int
X11_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * srcrect, const SDL_Rect * dstrect)
{
X11_RenderData *data = (X11_RenderData *) renderer->driverdata;
X11_TextureData *texturedata = (X11_TextureData *) texture->driverdata;
if (data->makedirty) {
SDL_AddDirtyRect(&data->dirty, dstrect);
}
if (srcrect->w == dstrect->w && srcrect->h == dstrect->h) {
#ifndef NO_SHARED_MEMORY
if (texturedata->shminfo.shmaddr) {
XShmPutImage(data->display, data->drawable, data->gc,
texturedata->image, srcrect->x, srcrect->y,
dstrect->x, dstrect->y, srcrect->w, srcrect->h,
False);
} else
#endif
if (texturedata->pixels) {
XPutImage(data->display, data->drawable, data->gc,
texturedata->image, srcrect->x, srcrect->y, dstrect->x,
dstrect->y, srcrect->w, srcrect->h);
} else {
XCopyArea(data->display, texturedata->pixmap, data->drawable,
data->gc, srcrect->x, srcrect->y, dstrect->w,
dstrect->h, dstrect->x, dstrect->y);
}
} else if (texturedata->yuv
|| texture->access == SDL_TEXTUREACCESS_STREAMING) {
SDL_Surface src, dst;
SDL_PixelFormat fmt;
SDL_Rect rect;
XImage *image = texturedata->scaling_image;
if (!image) {
int depth;
void *pixels;
int pitch;
pitch = dstrect->w * SDL_BYTESPERPIXEL(texturedata->format);
pixels = SDL_malloc(dstrect->h * pitch);
if (!pixels) {
SDL_OutOfMemory();
return -1;
}
image =
XCreateImage(data->display, data->visual, data->depth,
ZPixmap, 0, pixels, dstrect->w, dstrect->h,
SDL_BYTESPERPIXEL(texturedata->format) * 8,
pitch);
if (!image) {
SDL_SetError("XCreateImage() failed");
return -1;
}
texturedata->scaling_image = image;
} else if (image->width != dstrect->w || image->height != dstrect->h
|| !image->data) {
image->width = dstrect->w;
image->height = dstrect->h;
image->bytes_per_line =
image->width * SDL_BYTESPERPIXEL(texturedata->format);
image->data =
(char *) SDL_realloc(image->data,
image->height * image->bytes_per_line);
if (!image->data) {
SDL_OutOfMemory();
return -1;
}
}
/* Set up fake surfaces for SDL_SoftStretch() */
SDL_zero(src);
src.format = &fmt;
src.w = texture->w;
src.h = texture->h;
#ifndef NO_SHARED_MEMORY
if (texturedata->shminfo.shmaddr) {
src.pixels = texturedata->shminfo.shmaddr;
} else
#endif
src.pixels = texturedata->pixels;
src.pitch = texturedata->pitch;
SDL_zero(dst);
dst.format = &fmt;
dst.w = image->width;
dst.h = image->height;
dst.pixels = image->data;
dst.pitch = image->bytes_per_line;
fmt.BytesPerPixel = SDL_BYTESPERPIXEL(texturedata->format);
rect.x = 0;
rect.y = 0;
rect.w = dstrect->w;
rect.h = dstrect->h;
if (SDL_SoftStretch(&src, srcrect, &dst, &rect) < 0) {
return -1;
}
XPutImage(data->display, data->drawable, data->gc, image, 0, 0,
dstrect->x, dstrect->y, dstrect->w, dstrect->h);
} else {
XCopyArea(data->display, texturedata->pixmap, data->drawable,
data->gc, srcrect->x, srcrect->y, dstrect->w, dstrect->h,
srcrect->x, srcrect->y);
}
return 0;
}
static int
X11_RenderDrawLines(SDL_Renderer * renderer, const SDL_Point * points,
int count)
{
X11_RenderData *data = (X11_RenderData *) renderer->driverdata;
SDL_Window *window = renderer->window;
SDL_Rect clip, rect;
unsigned long foreground;
XPoint *xpoints, *xpoint;
int i, xcount;
int minx, miny;
int maxx, maxy;
clip.x = 0;
clip.y = 0;
clip.w = window->w;
clip.h = window->h;
foreground = renderdrawcolor(renderer, 1);
XSetForeground(data->display, data->gc, foreground);
xpoint = xpoints = SDL_stack_alloc(XPoint, count);
xcount = 0;
minx = INT_MAX;
miny = INT_MAX;
maxx = INT_MIN;
maxy = INT_MIN;
for (i = 0; i < count; ++i) {
int x = points[i].x;
int y = points[i].y;
/* If the point is inside the window, add it to the list */
if (x >= 0 && x < window->w && y >= 0 && y < window->h) {
if (x < minx) {
minx = x;
} else if (x > maxx) {
maxx = x;
}
if (y < miny) {
miny = y;
} else if (y > maxy) {
maxy = y;
}
xpoint->x = (short)x;
xpoint->y = (short)y;
++xpoint;
++xcount;
continue;
}
/* We need to clip the line segments joined by this point */
if (xcount > 0) {
int x1 = xpoint[-1].x;
int y1 = xpoint[-1].y;
int x2 = x;
int y2 = y;
if (SDL_IntersectRectAndLine(&clip, &x1, &y1, &x2, &y2)) {
if (x2 < minx) {
minx = x2;
} else if (x2 > maxx) {
maxx = x2;
}
if (y2 < miny) {
miny = y2;
} else if (y2 > maxy) {
maxy = y2;
}
xpoint->x = (short)x2;
xpoint->y = (short)y2;
++xpoint;
++xcount;
}
XDrawLines(data->display, data->drawable, data->gc,
xpoints, xcount, CoordModeOrigin);
if (xpoints[0].x != x2 || xpoints[0].y != y2) {
XDrawPoint(data->display, data->drawable, data->gc, x2, y2);
}
if (data->makedirty) {
SDL_Rect rect;
rect.x = minx;
rect.y = miny;
rect.w = (maxx - minx) + 1;
rect.h = (maxy - miny) + 1;
SDL_AddDirtyRect(&data->dirty, &rect);
}
xpoint = xpoints;
xcount = 0;
minx = INT_MAX;
miny = INT_MAX;
maxx = INT_MIN;
maxy = INT_MIN;
}
if (i < (count-1)) {
int x1 = x;
int y1 = y;
int x2 = points[i+1].x;
int y2 = points[i+1].y;
if (SDL_IntersectRectAndLine(&clip, &x1, &y1, &x2, &y2)) {
if (x1 < minx) {
minx = x1;
} else if (x1 > maxx) {
maxx = x1;
}
if (y1 < miny) {
miny = y1;
} else if (y1 > maxy) {
maxy = y1;
}
xpoint->x = (short)x1;
xpoint->y = (short)y1;
++xpoint;
++xcount;
}
}
}
if (xcount > 1) {
int x2 = xpoint[-1].x;
int y2 = xpoint[-1].y;
XDrawLines(data->display, data->drawable, data->gc, xpoints, xcount,
CoordModeOrigin);
if (xpoints[0].x != x2 || xpoints[0].y != y2) {
XDrawPoint(data->display, data->drawable, data->gc, x2, y2);
}
if (data->makedirty) {
SDL_Rect rect;
rect.x = minx;
rect.y = miny;
rect.w = (maxx - minx) + 1;
rect.h = (maxy - miny) + 1;
SDL_AddDirtyRect(&data->dirty, &rect);
}
}
SDL_stack_free(xpoints);
return 0;
}
static int
SW_RenderLine(SDL_Renderer * renderer, int x1, int y1, int x2, int y2)
{
SW_RenderData *data = (SW_RenderData *) renderer->driverdata;
SDL_Rect rect;
int status;
if (x1 < x2) {
rect.x = x1;
rect.w = (x2 - x1) + 1;
x2 -= x1;
x1 = 0;
} else {
rect.x = x2;
rect.w = (x1 - x2) + 1;
x1 -= x2;
x2 = 0;
}
if (y1 < y2) {
rect.y = y1;
rect.h = (y2 - y1) + 1;
y2 -= y1;
y1 = 0;
} else {
rect.y = y2;
rect.h = (y1 - y2) + 1;
y1 -= y2;
y2 = 0;
}
if (data->renderer->info.flags & SDL_RENDERER_PRESENTCOPY) {
SDL_AddDirtyRect(&data->dirty, &rect);
}
if (data->renderer->LockTexture(data->renderer,
data->texture[data->current_texture],
&rect, 1,
&data->surface.pixels,
&data->surface.pitch) < 0) {
return -1;
}
data->surface.w = rect.w;
data->surface.h = rect.h;
data->surface.clip_rect.w = rect.w;
data->surface.clip_rect.h = rect.h;
if (renderer->blendMode == SDL_BLENDMODE_NONE ||
renderer->blendMode == SDL_BLENDMODE_MASK) {
Uint32 color =
SDL_MapRGBA(data->surface.format, renderer->r, renderer->g,
renderer->b, renderer->a);
status = SDL_DrawLine(&data->surface, x1, y1, x2, y2, color);
} else {
status =
SDL_BlendLine(&data->surface, x1, y1, x2, y2, renderer->blendMode,
renderer->r, renderer->g, renderer->b, renderer->a);
}
data->renderer->UnlockTexture(data->renderer,
data->texture[data->current_texture]);
return status;
}
