renderer: Reimplement points and lines

Author: allkern

src/ee/dmac.c

@@ -1142,9 +1142,6 @@ void ps2_dmac_write32(struct ps2_dmac* dmac, uint32_t addr, uint64_t data) {
     if (c) {
         switch (addr & 0xff) {
             case 0x00: {
-                if (c == &dmac->ipu_to)
-                    printf("dmac: channel %s value=%08x chcr=%08x\n", dmac_get_channel_name(dmac, addr), data, c->chcr);
-
                 c->chcr = data;
 
                 if (data & 0x100) {

src/gs/renderer/software_thread.cpp

@@ -1925,10 +1925,10 @@ void render_point(struct ps2_gs* gs, void* udata) {
     vert.x -= gs->ctx->ofx;
     vert.y -= gs->ctx->ofy;
 
-    if (!gs_test_scissor(gs, vert.x, vert.y))
+    if (!gs_test_scissor(gs, vert.x >> 4, vert.y >> 4))
         return;
 
-    gs_draw_pixel(gs, vert.x, vert.y, vert.z, vert.rgbaq & 0xffffffff);
+    gs_draw_pixel(gs, vert.x >> 4, vert.y >> 4, vert.z, vert.rgbaq & 0xffffffff);
 }
 
 void render_line(struct ps2_gs* gs, void* udata) {
@@ -1949,8 +1949,8 @@ void render_line(struct ps2_gs* gs, void* udata) {
     int error = dx + dy;
 
     while (1) {
-        if (gs_test_scissor(gs, v0.x, v0.y))
-            gs_draw_pixel(gs, v0.x, v0.y, v0.z, v1.rgbaq & 0xffffffff);
+        if (gs_test_scissor(gs, v0.x >> 4, v0.y >> 4))
+            gs_draw_pixel(gs, v0.x >> 4, v0.y >> 4, v0.z, v1.rgbaq & 0xffffffff);
 
         int e2 = error << 1;
 
@@ -2233,6 +2233,14 @@ void render_sprite(struct ps2_gs* gs, void* udata) {
     int32_t xmax = ((std::min(std::max(v0.x, v1.x), scax1) + 8) >> 4) << 4;
     int32_t ymax = ((std::min(std::max(v0.y, v1.y), scay1) + 8) >> 4) << 4;
 
+    // printf("sprite: v0=(%d,%d) v1=(%d,%d) sca1=(%04x,%04x) rsca1=(%04x,%04x)\n",
+    //     v0.x, v0.y,
+    //     v1.x, v1.y,
+    //     scax1, scay1,
+    //     gs->ctx->scax1 << 4,
+    //     gs->ctx->scay1 << 4
+    // );
+
     // printf("sprite: v0=(%04x,%04x) v1=(%04x,%04x) tnbpsm=%02x tbw=%x tbp=%x cbpsm=%d mode=%d\n",
     //     v0.x, v0.y,
     //     v1.x, v1.y,