static mrb_value
mrb_sdl2_video_surface_fill_rects(mrb_state *mrb, mrb_value self)
{
uint32_t color;
mrb_value rects;
mrb_get_args(mrb, "io", &color, &rects);
if (!mrb_array_p(rects)) {
mrb_raise(mrb, E_TYPE_ERROR, "given 2nd argument is unexpected type (expected Array).");
}
mrb_int const n = mrb_ary_len(mrb, rects);
SDL_Surface *s = mrb_sdl2_video_surface_get_ptr(mrb, self);
SDL_Rect r[n];
mrb_int i;
for (i = 0; i < n; ++i) {
SDL_Rect const * const ptr = mrb_sdl2_rect_get_ptr(mrb, mrb_ary_ref(mrb, rects, i));
if (NULL != ptr) {
r[i] = *ptr;
} else {
r[i] = (SDL_Rect) {
0, 0, 0, 0
};
}
}
if (0 != SDL_FillRects(s, r, n, color)) {
mruby_sdl2_raise_error(mrb);
}
return self;
}
static SDL_Surface*
createShadowSet()
{
int bpp;
Uint32 rm, gm, bm, am;
SDL_PixelFormatEnumToMasks(SDL_PIXELFORMAT_ABGR8888, &bpp, &rm, &gm, &bm, &am);
SDL_Surface *surf = SDL_CreateRGBSurface(0, 1*32, 16*32, bpp, rm, gm, bm, am);
std::vector<SDL_Rect> rects;
SDL_Rect rect = { 0, 0, 16, 16 };
for (int val = 0; val < 16; ++val)
{
int origY = val*32;
/* Top left */
if (val & (1 << 0))
{
rect.x = 0;
rect.y = origY;
rects.push_back(rect);
}
/* Top Right */
if (val & (1 << 1))
{
rect.x = 16;
rect.y = origY;
rects.push_back(rect);
}
/* Bottom left */
if (val & (1 << 2))
{
rect.x = 0;
rect.y = origY+16;
rects.push_back(rect);
}
/* Bottom right */
if (val & (1 << 3))
{
rect.x = 16;
rect.y = origY+16;
rects.push_back(rect);
}
}
/* Fill rects with half opacity black */
uint32_t color = (0x80808080 & am);
SDL_FillRects(surf, dataPtr(rects), rects.size(), color);
return surf;
}
static int
SW_RenderFillRects(SDL_Renderer * renderer, const SDL_FRect * rects, int count)
{
SDL_Surface *surface = SW_ActivateRenderer(renderer);
SDL_Rect *final_rects;
int i, status;
if (!surface) {
return -1;
}
final_rects = SDL_stack_alloc(SDL_Rect, count);
if (!final_rects) {
return SDL_OutOfMemory();
}
if (renderer->viewport.x || renderer->viewport.y) {
int x = renderer->viewport.x;
int y = renderer->viewport.y;
for (i = 0; i < count; ++i) {
final_rects[i].x = (int)(x + rects[i].x);
final_rects[i].y = (int)(y + rects[i].y);
final_rects[i].w = SDL_max((int)rects[i].w, 1);
final_rects[i].h = SDL_max((int)rects[i].h, 1);
}
} else {
for (i = 0; i < count; ++i) {
final_rects[i].x = (int)rects[i].x;
final_rects[i].y = (int)rects[i].y;
final_rects[i].w = SDL_max((int)rects[i].w, 1);
final_rects[i].h = SDL_max((int)rects[i].h, 1);
}
}
if (renderer->blendMode == SDL_BLENDMODE_NONE) {
Uint32 color = SDL_MapRGBA(surface->format,
renderer->r, renderer->g, renderer->b,
renderer->a);
status = SDL_FillRects(surface, final_rects, count, color);
} else {
status = SDL_BlendFillRects(surface, final_rects, count,
renderer->blendMode,
renderer->r, renderer->g, renderer->b,
renderer->a);
}
SDL_stack_free(final_rects);
return status;
}
void ex2() {
SDL_SetWindowTitle( SDL_GL_GetCurrentWindow(), "ex2" );
SDL_Color c;
c.r = 40;
c.g = 225;
c.b = 40;
c.a = 255;
SDL_Rect rects[10];
for ( int i = 0; i < 10; i++ ) {
SDL_Rect r;
r.x = rand()%WIN_W;
r.y = rand()%WIN_H;
r.w = 50;
r.h = 100;
bool colliding = false;
for ( int j = i-1; j >= 0; j-- ) {
SDL_Rect r2 = rects[j];
int cx1 = r.x + (r.w/2);
int cx2 = r2.x + (r2.w/2);
int cy1 = r.y + (r.y/2);
int cy2 = r2.y + (r2.y/2);
int xDist = abs( cx1 - cx2 );
int yDist = abs( cy1 - cy2 );
int touchDistX = (r.w/2) + (r2.w/2);
int touchDistY = (r.h/2) + (r2.h/2);
if ( xDist <= touchDistX || yDist <= touchDistY ) {
colliding = true;
break;
}
}
if ( colliding ) {
i--;
} else {
rects[i] = r;
}
}
SDL_FillRects( backBuffer, rects, 10, SDL_MapRGB( backBuffer->format, c.r, c.g, c.b ) );
}
static int
SW_RenderFillRects(SDL_Renderer * renderer, const SDL_Rect * rects, int count)
{
SDL_Surface *surface = SW_ActivateRenderer(renderer);
SDL_Rect *temp = NULL;
int status;
if (!surface) {
return -1;
}
if (renderer->viewport.x || renderer->viewport.y) {
int i;
int x = renderer->viewport.x;
int y = renderer->viewport.y;
temp = SDL_stack_alloc(SDL_Rect, count);
for (i = 0; i < count; ++i) {
temp[i].x = x + rects[i].x;
temp[i].y = y + rects[i].y;
temp[i].w = rects[i].w;
temp[i].h = rects[i].h;
}
rects = temp;
}
if (renderer->blendMode == SDL_BLENDMODE_NONE) {
Uint32 color = SDL_MapRGBA(surface->format,
renderer->r, renderer->g, renderer->b,
renderer->a);
status = SDL_FillRects(surface, rects, count, color);
} else {
status = SDL_BlendFillRects(surface, rects, count,
renderer->blendMode,
renderer->r, renderer->g, renderer->b,
renderer->a);
}
if (temp) {
SDL_stack_free(temp);
}
return status;
}
static int
SW_RenderFillRects(SDL_Renderer * renderer, const SDL_Rect ** rects,
int count)
{
SDL_Surface *surface = SW_ActivateRenderer(renderer);
if (!surface) {
return -1;
}
if (renderer->blendMode == SDL_BLENDMODE_NONE) {
Uint32 color = SDL_MapRGBA(surface->format,
renderer->r, renderer->g, renderer->b,
renderer->a);
return SDL_FillRects(surface, rects, count, color);
} else {
return SDL_BlendFillRects(surface, rects, count,
renderer->blendMode,
renderer->r, renderer->g, renderer->b,
renderer->a);
}
}
static int
SDL_DUMMY_RenderFillRects(SDL_Renderer * renderer, const SDL_Rect ** rects,
int count)
{
SDL_DUMMY_RenderData *data =
(SDL_DUMMY_RenderData *) renderer->driverdata;
SDL_Surface *target = data->screens[data->current_screen];
if (renderer->blendMode == SDL_BLENDMODE_NONE ||
renderer->blendMode == SDL_BLENDMODE_MASK) {
Uint32 color = SDL_MapRGBA(target->format,
renderer->r, renderer->g, renderer->b,
renderer->a);
return SDL_FillRects(target, rects, count, color);
} else {
return SDL_BlendFillRects(target, rects, count,
renderer->blendMode,
renderer->r, renderer->g, renderer->b,
renderer->a);
}
}
static int
SW_RunCommandQueue(SDL_Renderer * renderer, SDL_RenderCommand *cmd, void *vertices, size_t vertsize)
{
SW_RenderData *data = (SW_RenderData *) renderer->driverdata;
SDL_Surface *surface = SW_ActivateRenderer(renderer);
const SDL_Rect *viewport = NULL;
const SDL_Rect *cliprect = NULL;
if (!surface) {
return -1;
}
while (cmd) {
switch (cmd->command) {
case SDL_RENDERCMD_SETDRAWCOLOR: {
break; /* Not used in this backend. */
}
case SDL_RENDERCMD_SETVIEWPORT: {
viewport = &cmd->data.viewport.rect;
SDL_SetClipRect(data->surface, viewport);
break;
}
case SDL_RENDERCMD_SETCLIPRECT: {
SDL_assert(viewport != NULL);
cliprect = cmd->data.cliprect.enabled ? &cmd->data.cliprect.rect : NULL;
if (cliprect) {
SDL_Rect clip_rect;
clip_rect.x = cliprect->x + viewport->x;
clip_rect.y = cliprect->y + viewport->y;
clip_rect.w = cliprect->w;
clip_rect.h = cliprect->h;
SDL_IntersectRect(viewport, &clip_rect, &clip_rect);
SDL_SetClipRect(surface, &clip_rect);
} else {
SDL_SetClipRect(surface, viewport);
}
break;
}
case SDL_RENDERCMD_CLEAR: {
const Uint8 r = cmd->data.color.r;
const Uint8 g = cmd->data.color.g;
const Uint8 b = cmd->data.color.b;
const Uint8 a = cmd->data.color.a;
const SDL_Rect clip_rect = surface->clip_rect;
/* By definition the clear ignores the clip rect */
SDL_SetClipRect(surface, NULL);
SDL_FillRect(surface, NULL, SDL_MapRGBA(surface->format, r, g, b, a));
SDL_SetClipRect(surface, &clip_rect);
break;
}
case SDL_RENDERCMD_DRAW_POINTS: {
const Uint8 r = cmd->data.draw.r;
const Uint8 g = cmd->data.draw.g;
const Uint8 b = cmd->data.draw.b;
const Uint8 a = cmd->data.draw.a;
const int count = (int) cmd->data.draw.count;
const SDL_Point *verts = (SDL_Point *) (((Uint8 *) vertices) + cmd->data.draw.first);
const SDL_BlendMode blend = cmd->data.draw.blend;
if (blend == SDL_BLENDMODE_NONE) {
SDL_DrawPoints(surface, verts, count, SDL_MapRGBA(surface->format, r, g, b, a));
} else {
SDL_BlendPoints(surface, verts, count, blend, r, g, b, a);
}
break;
}
case SDL_RENDERCMD_DRAW_LINES: {
const Uint8 r = cmd->data.draw.r;
const Uint8 g = cmd->data.draw.g;
const Uint8 b = cmd->data.draw.b;
const Uint8 a = cmd->data.draw.a;
const int count = (int) cmd->data.draw.count;
const SDL_Point *verts = (SDL_Point *) (((Uint8 *) vertices) + cmd->data.draw.first);
const SDL_BlendMode blend = cmd->data.draw.blend;
if (blend == SDL_BLENDMODE_NONE) {
SDL_DrawLines(surface, verts, count, SDL_MapRGBA(surface->format, r, g, b, a));
} else {
SDL_BlendLines(surface, verts, count, blend, r, g, b, a);
}
break;
}
case SDL_RENDERCMD_FILL_RECTS: {
const Uint8 r = cmd->data.draw.r;
const Uint8 g = cmd->data.draw.g;
const Uint8 b = cmd->data.draw.b;
const Uint8 a = cmd->data.draw.a;
const int count = (int) cmd->data.draw.count;
const SDL_Rect *verts = (SDL_Rect *) (((Uint8 *) vertices) + cmd->data.draw.first);
const SDL_BlendMode blend = cmd->data.draw.blend;
if (blend == SDL_BLENDMODE_NONE) {
SDL_FillRects(surface, verts, count, SDL_MapRGBA(surface->format, r, g, b, a));
} else {
SDL_BlendFillRects(surface, verts, count, blend, r, g, b, a);
}
break;
}
case SDL_RENDERCMD_COPY: {
SDL_Rect *verts = (SDL_Rect *) (((Uint8 *) vertices) + cmd->data.draw.first);
const SDL_Rect *srcrect = verts;
SDL_Rect *dstrect = verts + 1;
SDL_Texture *texture = cmd->data.draw.texture;
SDL_Surface *src = (SDL_Surface *) texture->driverdata;
PrepTextureForCopy(cmd);
if ( srcrect->w == dstrect->w && srcrect->h == dstrect->h ) {
SDL_BlitSurface(src, srcrect, surface, dstrect);
} else {
/* If scaling is ever done, permanently disable RLE (which doesn't support scaling)
* to avoid potentially frequent RLE encoding/decoding.
*/
SDL_SetSurfaceRLE(surface, 0);
SDL_BlitScaled(src, srcrect, surface, dstrect);
}
break;
}
case SDL_RENDERCMD_COPY_EX: {
const CopyExData *copydata = (CopyExData *) (((Uint8 *) vertices) + cmd->data.draw.first);
PrepTextureForCopy(cmd);
SW_RenderCopyEx(renderer, surface, cmd->data.draw.texture, ©data->srcrect,
©data->dstrect, copydata->angle, ©data->center, copydata->flip);
break;
}
case SDL_RENDERCMD_NO_OP:
break;
}
cmd = cmd->next;
}
return 0;
}
