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Change viewport and cliprect to float version: from SDL_Rect to SDL_FRect

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Sylvain 2021-11-26 13:12:22 +01:00 committed by Sylvain Becker
parent 7828362da9
commit e14d10263c
2 changed files with 42 additions and 33 deletions
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63
src/render/SDL_render.c
View File

@ -356,7 +356,10 @@ QueueCmdSetViewport(SDL_Renderer *renderer)
if (cmd != NULL) {
cmd->command = SDL_RENDERCMD_SETVIEWPORT;
cmd->data.viewport.first = 0; /* render backend will fill this in. */
SDL_memcpy(&cmd->data.viewport.rect, &renderer->viewport, sizeof (renderer->viewport));
cmd->data.viewport.rect.x = renderer->viewport.x;
cmd->data.viewport.rect.y = renderer->viewport.y;
cmd->data.viewport.rect.w = renderer->viewport.w;
cmd->data.viewport.rect.h = renderer->viewport.h;
retval = renderer->QueueSetViewport(renderer, cmd);
if (retval < 0) {
cmd->command = SDL_RENDERCMD_NO_OP;
@ -382,7 +385,10 @@ QueueCmdSetClipRect(SDL_Renderer *renderer)
} else {
cmd->command = SDL_RENDERCMD_SETCLIPRECT;
cmd->data.cliprect.enabled = renderer->clipping_enabled;
SDL_memcpy(&cmd->data.cliprect.rect, &renderer->clip_rect, sizeof (cmd->data.cliprect.rect));
cmd->data.cliprect.rect.x = renderer->clip_rect.x;
cmd->data.cliprect.rect.y = renderer->clip_rect.y;
cmd->data.cliprect.rect.w = renderer->clip_rect.w;
cmd->data.cliprect.rect.h = renderer->clip_rect.h;
SDL_memcpy(&renderer->last_queued_cliprect, &renderer->clip_rect, sizeof (SDL_Rect));
renderer->last_queued_cliprect_enabled = renderer->clipping_enabled;
renderer->cliprect_queued = SDL_TRUE;
@ -667,7 +673,7 @@ SDL_GetRenderDriverInfo(int index, SDL_RendererInfo * info)
#endif
}
static void GetWindowViewportValues(SDL_Renderer *renderer, int *logical_w, int *logical_h, SDL_Rect *viewport, SDL_FPoint *scale)
static void GetWindowViewportValues(SDL_Renderer *renderer, int *logical_w, int *logical_h, SDL_FRect *viewport, SDL_FPoint *scale)
{
SDL_LockMutex(renderer->target_mutex);
*logical_w = renderer->target ? renderer->logical_w_backup : renderer->logical_w;
@ -756,7 +762,7 @@ SDL_RendererEventWatch(void *userdata, SDL_Event *event)
SDL_Window *window = SDL_GetWindowFromID(event->motion.windowID);
if (window == renderer->window) {
int logical_w, logical_h;
SDL_Rect viewport;
SDL_FRect viewport;
SDL_FPoint scale;
GetWindowViewportValues(renderer, &logical_w, &logical_h, &viewport, &scale);
if (logical_w) {
@ -783,7 +789,7 @@ SDL_RendererEventWatch(void *userdata, SDL_Event *event)
SDL_Window *window = SDL_GetWindowFromID(event->button.windowID);
if (window == renderer->window) {
int logical_w, logical_h;
SDL_Rect viewport;
SDL_FRect viewport;
SDL_FPoint scale;
GetWindowViewportValues(renderer, &logical_w, &logical_h, &viewport, &scale);
if (logical_w) {
@ -798,7 +804,7 @@ SDL_RendererEventWatch(void *userdata, SDL_Event *event)
event->type == SDL_FINGERMOTION) {
int logical_w, logical_h;
float physical_w, physical_h;
SDL_Rect viewport;
SDL_FRect viewport;
SDL_FPoint scale;
GetWindowViewportValues(renderer, &logical_w, &logical_h, &viewport, &scale);
@ -2183,8 +2189,8 @@ SDL_SetRenderTarget(SDL_Renderer *renderer, SDL_Texture *texture)
}
if (texture) {
renderer->viewport.x = 0;
renderer->viewport.y = 0;
renderer->viewport.x = 0.0f;
renderer->viewport.y = 0.0f;
renderer->viewport.w = texture->w;
renderer->viewport.h = texture->h;
SDL_zero(renderer->clip_rect);
@ -2393,16 +2399,19 @@ SDL_RenderSetViewport(SDL_Renderer * renderer, const SDL_Rect * rect)
CHECK_RENDERER_MAGIC(renderer, -1);
if (rect) {
renderer->viewport.x = (int)SDL_floor(rect->x * renderer->scale.x);
renderer->viewport.y = (int)SDL_floor(rect->y * renderer->scale.y);
renderer->viewport.w = (int)SDL_floor(rect->w * renderer->scale.x);
renderer->viewport.h = (int)SDL_floor(rect->h * renderer->scale.y);
renderer->viewport.x = rect->x * renderer->scale.x;
renderer->viewport.y = rect->y * renderer->scale.y;
renderer->viewport.w = rect->w * renderer->scale.x;
renderer->viewport.h = rect->h * renderer->scale.y;
} else {
renderer->viewport.x = 0;
renderer->viewport.y = 0;
if (SDL_GetRendererOutputSize(renderer, &renderer->viewport.w, &renderer->viewport.h) < 0) {
int w, h;
renderer->viewport.x = 0.0f;
renderer->viewport.y = 0.0f;
if (SDL_GetRendererOutputSize(renderer, &w, &h) < 0) {
return -1;
}
renderer->viewport.w = w;
renderer->viewport.h = h;
}
retval = QueueCmdSetViewport(renderer);
return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
@ -2414,10 +2423,10 @@ SDL_RenderGetViewport(SDL_Renderer * renderer, SDL_Rect * rect)
CHECK_RENDERER_MAGIC(renderer, );
if (rect) {
rect->x = (int)(renderer->viewport.x / renderer->scale.x);
rect->y = (int)(renderer->viewport.y / renderer->scale.y);
rect->w = (int)(renderer->viewport.w / renderer->scale.x);
rect->h = (int)(renderer->viewport.h / renderer->scale.y);
rect->x = renderer->viewport.x / renderer->scale.x;
rect->y = renderer->viewport.y / renderer->scale.y;
rect->w = renderer->viewport.w / renderer->scale.x;
rect->h = renderer->viewport.h / renderer->scale.y;
}
}
@ -2438,10 +2447,10 @@ SDL_RenderSetClipRect(SDL_Renderer * renderer, const SDL_Rect * rect)
if (rect) {
renderer->clipping_enabled = SDL_TRUE;
renderer->clip_rect.x = (int)SDL_floor(rect->x * renderer->scale.x);
renderer->clip_rect.y = (int)SDL_floor(rect->y * renderer->scale.y);
renderer->clip_rect.w = (int)SDL_floor(rect->w * renderer->scale.x);
renderer->clip_rect.h = (int)SDL_floor(rect->h * renderer->scale.y);
renderer->clip_rect.x = rect->x * renderer->scale.x;
renderer->clip_rect.y = rect->y * renderer->scale.y;
renderer->clip_rect.w = rect->w * renderer->scale.x;
renderer->clip_rect.h = rect->h * renderer->scale.y;
} else {
renderer->clipping_enabled = SDL_FALSE;
SDL_zero(renderer->clip_rect);
@ -2457,10 +2466,10 @@ SDL_RenderGetClipRect(SDL_Renderer * renderer, SDL_Rect * rect)
CHECK_RENDERER_MAGIC(renderer, )
if (rect) {
rect->x = (int)(renderer->clip_rect.x / renderer->scale.x);
rect->y = (int)(renderer->clip_rect.y / renderer->scale.y);
rect->w = (int)(renderer->clip_rect.w / renderer->scale.x);
rect->h = (int)(renderer->clip_rect.h / renderer->scale.y);
rect->x = renderer->clip_rect.x / renderer->scale.x;
rect->y = renderer->clip_rect.y / renderer->scale.y;
rect->w = renderer->clip_rect.w / renderer->scale.x;
rect->h = renderer->clip_rect.h / renderer->scale.y;
}
}

12
src/render/SDL_sysrender.h
View File

@ -186,12 +186,12 @@ struct SDL_Renderer
SDL_bool integer_scale;
/* The drawable area within the window */
SDL_Rect viewport;
SDL_Rect viewport_backup;
SDL_FRect viewport;
SDL_FRect viewport_backup;
/* The clip rectangle within the window */
SDL_Rect clip_rect;
SDL_Rect clip_rect_backup;
SDL_FRect clip_rect;
SDL_FRect clip_rect_backup;
/* Wether or not the clipping rectangle is used. */
SDL_bool clipping_enabled;
@ -226,8 +226,8 @@ struct SDL_Renderer
SDL_RenderCommand *render_commands_pool;
Uint32 render_command_generation;
Uint32 last_queued_color;
SDL_Rect last_queued_viewport;
SDL_Rect last_queued_cliprect;
SDL_FRect last_queued_viewport;
SDL_FRect last_queued_cliprect;
SDL_bool last_queued_cliprect_enabled;
SDL_bool color_queued;
SDL_bool viewport_queued;