Changeset e26a632 in buchla-emu for emu

Timestamp:

09/09/2017 05:52:04 PM (7 years ago)

Author:

Thomas Lopatic <thomas@…>

Branches:

master

Children:

67fecc3

Parents:

ca77925

Message:

Support multiple flips.

File:

• emu/vid.c (modified) (7 diffs)

emu/vid.c

@@ -64 +64 @@
 
 typedef struct {
-        int32_t x, y, w, h;
+        int32_t y, h;
+} ver_t;
+
+typedef struct {
+        int32_t x, w;
+        int32_t n_vers;
+        ver_t vers[SCR_H / 2];
         uint16_t *mem;
         bool tran;
@@ -87 +93 @@
 static SDL_atomic_t frame;
 
-static void rend_bm(uint16_t *vid, int32_t w, int32_t h, uint32_t *pix, int32_t pitch)
+static uint16_t *rend_bm(uint16_t *vid, int32_t w, int32_t h, uint32_t *pix, int32_t pitch)
 {
         for (int32_t y = 0; y < h; ++y) {
@@ -101 +107 @@
                 pix += pitch / 4 - w;
         }
-}
-
-static void rend_tx(uint16_t *vid, int32_t w, int32_t h, int32_t fon_h,
+
+        return vid;
+}
+
+static uint16_t *rend_tx(uint16_t *vid, int32_t w, int32_t h, int32_t fon_h,
                 uint32_t *pix, int32_t pitch)
 {
@@ -154 +162 @@
                 pix += pitch / 4 - w;
         }
+
+        return vid;
 }
 
@@ -182 +192 @@
 
                 pal[0] = obj->tran ? pal[0] & 0xffffff00 : pal[0] | 0x000000ff;
-
-                SDL_Rect src = {
-                        .x = 0, .y = 0, .w = obj->w, .h = obj->h
-                };
-
-                void *buf;
-                int32_t pitch;
-
-                if (SDL_LockTexture(tex, &src, &buf, &pitch) < 0) {
-                        fail("SDL_LockTexture() failed: %s", SDL_GetError());
-                }
-
-                if (obj->fon_h < 0) {
-                        rend_bm(obj->mem, obj->w, obj->h, buf, pitch);
-                }
-                else {
-                        rend_tx(obj->mem, obj->w, obj->h, obj->fon_h, buf, pitch);
-                }
-
-                SDL_UnlockTexture(tex);
-
-                SDL_Rect dst = {
-                        .x = SCALE(obj->x), .y = SCALE(obj->y),
-                        .w = SCALE(obj->w), .h = SCALE(obj->h)
-                };
-
-                ver2("vid rend %d %dx%d -> (%d, %d) (%d, %d) %dx%d",
-                                i,
-                                obj->w, obj->h,
-                                obj->x, obj->y,
-                                SCALE(obj->x), SCALE(obj->y),
-                                SCALE(obj->w), SCALE(obj->h));
-
-                if (SDL_RenderCopy(ren, tex, &src, &dst) < 0) {
-                        fail("SDL_RenderCopy() failed: %s", SDL_GetError());
+                uint16_t *m = obj->mem;
+
+                for (int32_t k = 0; k < obj->n_vers; ++k) {
+                        SDL_Rect src = {
+                                .x = 0, .y = 0, .w = obj->w, .h = obj->vers[k].h
+                        };
+
+                        void *buf;
+                        int32_t pitch;
+
+                        if (SDL_LockTexture(tex, &src, &buf, &pitch) < 0) {
+                                fail("SDL_LockTexture() failed: %s", SDL_GetError());
+                        }
+
+                        if (obj->fon_h < 0) {
+                                m = rend_bm(m, obj->w, obj->vers[k].h, buf, pitch);
+                        }
+                        else {
+                                m = rend_tx(m, obj->w, obj->vers[k].h, obj->fon_h, buf, pitch);
+                        }
+
+                        SDL_UnlockTexture(tex);
+
+                        SDL_Rect dst = {
+                                .x = SCALE(obj->x), .y = SCALE(obj->vers[k].y),
+                                .w = SCALE(obj->w), .h = SCALE(obj->vers[k].h)
+                        };
+
+                        ver2("vid rend %d %d %dx%d -> (%d, %d) (%d, %d) %dx%d",
+                                        i, k,
+                                        obj->w, obj->vers[k].h,
+                                        obj->x, obj->vers[k].y,
+                                        SCALE(obj->x), SCALE(obj->vers[k].y),
+                                        SCALE(obj->w), SCALE(obj->vers[k].h));
+
+                        if (SDL_RenderCopy(ren, tex, &src, &dst) < 0) {
+                                fail("SDL_RenderCopy() failed: %s", SDL_GetError());
+                        }
                 }
         }
@@ -357 +370 @@
                 }
 
-                if (n_flips == 1) {
+                if (n_flips % 2 != 0) {
                         flips[n_flips] = SCR_H;
                         ++n_flips;
@@ -383 +396 @@
 
                 obj->x = x;
-                obj->y = flips[0];
                 obj->w = w;
-                obj->h = flips[1] - flips[0];
+                obj->n_vers = n_flips / 2;
+
+                for (int32_t k = 0; k < obj->n_vers; ++k) {
+                        obj->vers[k].y = flips[2 * k];
+                        obj->vers[k].h = flips[2 * k + 1] - flips[2 * k];
+                }
+
                 obj->mem = mem + off;
                 obj->tran = tde;
                 obj->fon_h = fon_h;
 
-                ver2("vid obj %d %c %c %d:%d %d+%d 0x%05x",
-                                i, cb ? 'c' : 'b', tde ? 't' : '-', flips[0], flips[1], x, w, off);
+                ver2("vid obj %d %c %c %d:%d %d+%d %d 0x%05x",
+                                i, cb ? 'c' : 'b', tde ? 't' : '-', flips[0], flips[1], x, w, fon_h, off);
 
                 ++n_objs;