Change from fixed-point integer arguments to floating point in EVE API functions

Changed calls: PointSize(), LineWidth(), VertexTranslateX() and VertexTranslateY()
Units for all the above are now pixels, not fixed-point integers. This matches OpenGL.
Docstrings updated accordingly

1 files changed, 12 insertions, 8 deletions

diff --git a/shared-module/_eve/__init__.c b/shared-module/_eve/__init__.c
index d95c777dc..579729d42 100644
--- a/shared-module/_eve/__init__.c
+++ b/shared-module/_eve/__init__.c
@@ -226,8 +226,9 @@ void common_hal__eve_Jump(common_hal__eve_t *eve, uint32_t dest) {
 }
 
 
-void common_hal__eve_LineWidth(common_hal__eve_t *eve, uint32_t width) {
-    C4(eve, ((14 << 24) | ((width & 4095))));
+void common_hal__eve_LineWidth(common_hal__eve_t *eve, mp_float_t width) {
+    int16_t iw = (int)(8 * width);
+    C4(eve, ((14 << 24) | ((iw & 4095))));
 }
 
 
@@ -246,8 +247,9 @@ void common_hal__eve_PaletteSource(common_hal__eve_t *eve, uint32_t addr) {
 }
 
 
-void common_hal__eve_PointSize(common_hal__eve_t *eve, uint32_t size) {
-    C4(eve, ((13 << 24) | ((size & 8191))));
+void common_hal__eve_PointSize(common_hal__eve_t *eve, mp_float_t size) {
+    int16_t is = (int)(8 * size);
+    C4(eve, ((13 << 24) | ((is & 8191))));
 }
 
 
@@ -301,13 +303,15 @@ void common_hal__eve_Tag(common_hal__eve_t *eve, uint32_t s) {
 }
 
 
-void common_hal__eve_VertexTranslateX(common_hal__eve_t *eve, uint32_t x) {
-    C4(eve, ((43 << 24) | (((x) & 131071))));
+void common_hal__eve_VertexTranslateX(common_hal__eve_t *eve, mp_float_t x) {
+    int16_t ix = (int)(16 * x);
+    C4(eve, ((43 << 24) | (ix & 131071)));
 }
 
 
-void common_hal__eve_VertexTranslateY(common_hal__eve_t *eve, uint32_t y) {
-    C4(eve, ((44 << 24) | (((y) & 131071))));
+void common_hal__eve_VertexTranslateY(common_hal__eve_t *eve, mp_float_t y) {
+    int16_t iy = (int)(16 * y);
+    C4(eve, ((44 << 24) | (iy & 131071)));
 }