gl_rasterizer: Implement GL_POINT_SPRITE

OpenGL core defaults to GL_POINT_SPRITE, meanwhile on OpenGL
compatibility we have to explicitly enable it. This fixes
gl_PointCoord's behaviour.
This commit is contained in:
ReinUsesLisp 2020-02-04 15:19:45 -03:00
parent bf21aacc74
commit 7da52673d0
4 changed files with 9 additions and 1 deletions

View file

@ -862,7 +862,11 @@ public:
float point_size;
INSERT_UNION_PADDING_WORDS(0x7);
INSERT_UNION_PADDING_WORDS(0x1);
u32 point_sprite_enable;
INSERT_UNION_PADDING_WORDS(0x5);
u32 zeta_enable;
@ -1494,6 +1498,7 @@ ASSERT_REG_POSITION(vb_element_base, 0x50D);
ASSERT_REG_POSITION(vb_base_instance, 0x50E);
ASSERT_REG_POSITION(clip_distance_enabled, 0x544);
ASSERT_REG_POSITION(point_size, 0x546);
ASSERT_REG_POSITION(point_sprite_enable, 0x548);
ASSERT_REG_POSITION(zeta_enable, 0x54E);
ASSERT_REG_POSITION(multisample_control, 0x54F);
ASSERT_REG_POSITION(condition, 0x554);

View file

@ -1293,6 +1293,7 @@ void RasterizerOpenGL::SyncPointState() {
// Limit the point size to 1 since nouveau sometimes sets a point size of 0 (and that's invalid
// in OpenGL).
state.point.program_control = regs.vp_point_size.enable != 0;
state.point.sprite = regs.point_sprite_enable != 0;
state.point.size = std::max(1.0f, regs.point_size);
}

View file

@ -128,6 +128,7 @@ void OpenGLState::ApplyClipDistances() {
void OpenGLState::ApplyPointSize() {
Enable(GL_PROGRAM_POINT_SIZE, cur_state.point.program_control, point.program_control);
Enable(GL_POINT_SPRITE, cur_state.point.sprite, point.sprite);
if (UpdateValue(cur_state.point.size, point.size)) {
glPointSize(point.size);
}

View file

@ -132,6 +132,7 @@ public:
struct {
bool program_control = false; // GL_PROGRAM_POINT_SIZE
bool sprite = false; // GL_POINT_SPRITE
GLfloat size = 1.0f; // GL_POINT_SIZE
} point;