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Small cleanup

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This commit is contained in:
Luke Benstead 2020-05-16 09:30:25 +01:00
parent 29658ef3de
commit d6a22582f9
2 changed files with 13 additions and 6 deletions
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16
GL/clip.c
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@ -250,10 +250,14 @@ void _glClipTriangleStrip(SubmissionTarget* target, uint8_t fladeShade) {
* A vertex is visible if it's in front of the camera (W > 0)
* and it's in front of the near plane (Z > -W)
*/
#define _VERT_VISIBLE(v) \
(v->w >= 0 && v->xyz[2] >= -v->w) \
uint8_t visible = (
((v1->w >= 0 && v1->xyz[2] >= -v1->w) ? 4 : 0) |
((v2->w >= 0 && v2->xyz[2] >= -v2->w) ? 2 : 0) |
((v3->w >= 0 && v3->xyz[2] >= -v3->w) ? 1 : 0)
(_VERT_VISIBLE(v1) ? 4 : 0) |
(_VERT_VISIBLE(v2) ? 2 : 0) |
(_VERT_VISIBLE(v3) ? 1 : 0)
);
switch(visible) {
@ -347,7 +351,7 @@ void _glClipTriangleStrip(SubmissionTarget* target, uint8_t fladeShade) {
v3->flags = VERTEX_CMD;
triangle = -1;
} else {
} else {
Vertex* v4 = v3 + 1;
uint32_t vi4 = v4 - start;
@ -360,7 +364,9 @@ void _glClipTriangleStrip(SubmissionTarget* target, uint8_t fladeShade) {
TO_CLIP[CLIP_COUNT].extra[1] = *(VertexExtra*) aligned_vector_at(target->extras, vi2);
TO_CLIP[CLIP_COUNT].extra[2] = *ve4;
visible = ((v3->w > 0) ? 4 : 0) | ((v2->w > 0) ? 2 : 0) | ((v4->w > 0) ? 1 : 0);
visible = (_VERT_VISIBLE(v3) ? 4 : 0) |
(_VERT_VISIBLE(v2) ? 2 : 0) |
(_VERT_VISIBLE(v4) ? 1 : 0);
TO_CLIP[CLIP_COUNT].visible = visible;
++CLIP_COUNT;

3
GL/draw.c
View File

@ -943,8 +943,9 @@ GL_FORCE_INLINE void divide(SubmissionTarget* target) {
float f = MATH_Fast_Invert(vertex->w);
vertex->xyz[0] *= f;
vertex->xyz[1] *= f;
vertex->xyz[2] *= f;
vertex->xyz[2] = MATH_Fast_Invert(
(vertex->xyz[2] * f) * 0.5f + 0.55f
vertex->xyz[2] * 0.5f + 0.525f
);
++vertex;
}