SDL: Fix warnings

From 6e47f538696d4025c61b97d756bd0802ca524366 Mon Sep 17 00:00:00 2001
From: Sylvain <[EMAIL REDACTED]>
Date: Thu, 1 Apr 2021 20:18:05 +0200
Subject: [PATCH] Fix warnings

---
 src/render/SDL_render.c             | 22 ++++++++++++++++------
 src/render/software/SDL_render_sw.c | 12 ++++++------
 src/render/software/SDL_triangle.c  |  2 +-
 3 files changed, 23 insertions(+), 13 deletions(-)

diff --git a/src/render/SDL_render.c b/src/render/SDL_render.c
index 123c3a73dd..11995032cb 100644
--- a/src/render/SDL_render.c
+++ b/src/render/SDL_render.c
@@ -213,6 +213,16 @@ DebugLogRenderCommands(const SDL_RenderCommand *cmd)
                         (int) cmd->data.draw.b, (int) cmd->data.draw.a,
                         (int) cmd->data.draw.blend, cmd->data.draw.texture);
                 break;
+
+            case SDL_RENDERCMD_GEOMETRY:
+                SDL_Log(" %u. geometry (first=%u, count=%u, r=%d, g=%d, b=%d, a=%d, blend=%d, tex=%p)", i++,
+                        (unsigned int) cmd->data.draw.first,
+                        (unsigned int) cmd->data.draw.count,
+                        (int) cmd->data.draw.r, (int) cmd->data.draw.g,
+                        (int) cmd->data.draw.b, (int) cmd->data.draw.a,
+                        (int) cmd->data.draw.blend, cmd->data.draw.texture);
+                break;
+
         }
         cmd = cmd->next;
     }
@@ -3427,8 +3437,8 @@ SDL_SW_RenderGeometryRaw(SDL_Renderer *renderer,
     const int debug = 0;
     int prev[3]; /* Previous triangle vertex indices */
     int texw = 0, texh = 0;
-    SDL_BlendMode blendMode;
-    Uint8 r, g, b, a;
+    SDL_BlendMode blendMode = SDL_BLENDMODE_NONE;
+    Uint8 r = 0, g = 0, b = 0, a = 0;
 
     /* Save */
     SDL_GetRenderDrawBlendMode(renderer, &blendMode);
@@ -3604,10 +3614,10 @@ SDL_SW_RenderGeometryRaw(SDL_Renderer *renderer,
             if (texture) {
                 uv0_ = (const float *)((const char*)uv + A * uv_stride);
                 uv1_ = (const float *)((const char*)uv + B * uv_stride);
-                s.x = uv0_[0] * texw;
-                s.y = uv0_[1] * texh;
-                s.w = uv1_[0] * texw - s.x;
-                s.h = uv1_[1] * texh - s.y;
+                s.x = (int) (uv0_[0] * texw);
+                s.y = (int) (uv0_[1] * texh);
+                s.w = (int) (uv1_[0] * texw - s.x);
+                s.h = (int) (uv1_[1] * texh - s.y);
             }
 
             d.x = xy0_[0];
diff --git a/src/render/software/SDL_render_sw.c b/src/render/software/SDL_render_sw.c
index 9bf56981b3..47242a4953 100644
--- a/src/render/software/SDL_render_sw.c
+++ b/src/render/software/SDL_render_sw.c
@@ -615,11 +615,11 @@ SW_QueueGeometry(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL_Texture *te
 
             uv_ = (float *)((char*)uv + j * uv_stride);
 
-            ptr->src.x = uv_[0] * texture->w;
-            ptr->src.y = uv_[1] * texture->h;
+            ptr->src.x = (int)(uv_[0] * texture->w);
+            ptr->src.y = (int)(uv_[1] * texture->h);
 
-            ptr->dst.x = xy_[0] * scale_x + renderer->viewport.x;
-            ptr->dst.y = xy_[1] * scale_y + renderer->viewport.y;
+            ptr->dst.x = (int)(xy_[0] * scale_x + renderer->viewport.x);
+            ptr->dst.y = (int)(xy_[1] * scale_y + renderer->viewport.y);
             trianglepoint_2_fixedpoint(&ptr->dst);
 
             ptr->color = col_;
@@ -646,8 +646,8 @@ SW_QueueGeometry(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL_Texture *te
             xy_ = (float *)((char*)xy + j * xy_stride);
             col_ = *(SDL_Color *)((char*)color + j * color_stride);
 
-            ptr->dst.x = xy_[0] * scale_x + renderer->viewport.x;
-            ptr->dst.y = xy_[1] * scale_y + renderer->viewport.y;
+            ptr->dst.x = (int)(xy_[0] * scale_x + renderer->viewport.x);
+            ptr->dst.y = (int)(xy_[1] * scale_y + renderer->viewport.y);
             trianglepoint_2_fixedpoint(&ptr->dst);
 
             ptr->color = col_;
diff --git a/src/render/software/SDL_triangle.c b/src/render/software/SDL_triangle.c
index 41fdebfb73..03f4a52a72 100644
--- a/src/render/software/SDL_triangle.c
+++ b/src/render/software/SDL_triangle.c
@@ -88,7 +88,7 @@ int SDL_FillTriangle(SDL_Surface *dst, const SDL_Point points[3], Uint32 color)
 #endif
 
 /* cross product AB x AC */
-static float cross_product(const SDL_Point *a, const SDL_Point *b, int c_x, int c_y)
+static int cross_product(const SDL_Point *a, const SDL_Point *b, int c_x, int c_y)
 {
     return (b->x - a->x) * (c_y - a->y) - (b->y - a->y) * (c_x - a->x);
 }