eclair snapshot

1 files changed, 8 insertions, 7 deletions

diff --git a/opengl/libagl/matrix.cpp b/opengl/libagl/matrix.cpp
index 0b68dc06f5..3c50977086 100644
--- a/opengl/libagl/matrix.cpp
+++ b/opengl/libagl/matrix.cpp
@@ -696,6 +696,8 @@ void ogles_viewport(ogles_context_t* c,
     f[2] = 0;   f[6] = 0;   f[10] = A;  f[14] = B;
     f[3] = 0;   f[7] = 0;   f[11] = 0;  f[15] = 1;
     c->transforms.dirty |= transform_state_t::VIEWPORT;
+    if (c->transforms.mvp4.flags & transform_t::FLAGS_2D_PROJECTION)
+        c->transforms.dirty |= transform_state_t::MVP;
 }
 
 // ----------------------------------------------------------------------------
@@ -739,20 +741,19 @@ void point4__generic(transform_t const* mx, vec4_t* lhs, vec4_t const* rhs) {
 
 void point4__mvui(transform_t const* mx, vec4_t* lhs, vec4_t const* rhs) {
     // this used for transforming light positions back to object space.
-    // Lights have 3 components positions, so w is always 1.
-    // however, it is used as a switch for directional lights, so we need
+    // w is used as a switch for directional lights, so we need
     // to preserve it.
     const GLfixed* const m = mx->matrix.m;
     const GLfixed rx = rhs->x;
     const GLfixed ry = rhs->y;
     const GLfixed rz = rhs->z;
-    lhs->x = mla3a(rx, m[ 0], ry, m[ 4], rz, m[ 8], m[12]); 
-    lhs->y = mla3a(rx, m[ 1], ry, m[ 5], rz, m[ 9], m[13]);
-    lhs->z = mla3a(rx, m[ 2], ry, m[ 6], rz, m[10], m[14]);
-    lhs->w = rhs->w;
+    const GLfixed rw = rhs->w;
+    lhs->x = mla4(rx, m[ 0], ry, m[ 4], rz, m[ 8], rw, m[12]);
+    lhs->y = mla4(rx, m[ 1], ry, m[ 5], rz, m[ 9], rw, m[13]);
+    lhs->z = mla4(rx, m[ 2], ry, m[ 6], rz, m[10], rw, m[14]);
+    lhs->w = rw;
 }
 
-
 void point2__nop(transform_t const*, vec4_t* lhs, vec4_t const* rhs) {
     lhs->z = 0;
     lhs->w = 0x10000;