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glgsg: Fix bug if same texture is used with different tex gen modes in FFP

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rdb 2023-01-13 17:00:12 +01:00
parent 86a1973f89
commit 21347bb2d5
1 changed files with 28 additions and 14 deletions
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42
panda/src/glstuff/glGraphicsStateGuardian_src.cxx
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@ -11620,6 +11620,8 @@ set_state_and_transform(const RenderState *target,
}
int texture_slot = TextureAttrib::get_class_slot();
int tex_gen_slot = TexGenAttrib::get_class_slot();
int tex_matrix_slot = TexMatrixAttrib::get_class_slot();
if (_target_rs->get_attrib(texture_slot) != _state_rs->get_attrib(texture_slot) ||
!_state_mask.get_bit(texture_slot)) {
PStatGPUTimer timer(this, _draw_set_state_texture_pcollector);
@ -11635,7 +11637,7 @@ set_state_and_transform(const RenderState *target,
_target_texture = (const TextureAttrib *)
_target_rs->get_attrib_def(TextureAttrib::get_class_slot());
_target_tex_gen = (const TexGenAttrib *)
_target_rs->get_attrib_def(TexGenAttrib::get_class_slot());
_target_rs->get_attrib_def(tex_gen_slot);
}
#endif
do_issue_texture();
@ -11643,28 +11645,36 @@ set_state_and_transform(const RenderState *target,
// Since the TexGen and TexMatrix states depend partly on the particular
// set of textures in use, we should force both of those to be reissued
// every time we change the texture state.
_state_mask.clear_bit(TexGenAttrib::get_class_slot());
_state_mask.clear_bit(TexMatrixAttrib::get_class_slot());
_state_mask.clear_bit(tex_gen_slot);
_state_mask.clear_bit(tex_matrix_slot);
_state_texture = _target_texture;
_state_mask.set_bit(texture_slot);
}
else if (_target_rs->get_attrib(tex_gen_slot) != _state_rs->get_attrib(tex_gen_slot) ||
!_state_mask.get_bit(tex_gen_slot)) {
_target_tex_gen = (const TexGenAttrib *)_target_rs->get_attrib_def(tex_gen_slot);
// If one of the previously-loaded TexGen modes modified the texture matrix,
// then if either state changed, we have to change both of them now.
if (_tex_gen_modifies_mat) {
int tex_gen_slot = TexGenAttrib::get_class_slot();
int tex_matrix_slot = TexMatrixAttrib::get_class_slot();
if (_target_rs->get_attrib(tex_gen_slot) != _state_rs->get_attrib(tex_gen_slot) ||
_target_rs->get_attrib(tex_matrix_slot) != _state_rs->get_attrib(tex_matrix_slot) ||
!_state_mask.get_bit(tex_gen_slot) ||
!_state_mask.get_bit(tex_matrix_slot)) {
#ifdef SUPPORT_FIXED_FUNCTION
#ifdef OPENGLES_1
if (_has_texture_alpha_scale) {
#else
if (_has_texture_alpha_scale && _current_shader == nullptr) {
#endif
PT(TextureStage) stage = get_alpha_scale_texture_stage();
_target_tex_gen = DCAST(TexGenAttrib, _target_tex_gen->add_stage
(stage, TexGenAttrib::M_constant, LTexCoord3(_current_color_scale[3], 0.0f, 0.0f)));
}
#endif // SUPPORT_FIXED_FUNCTION
// If one of the previously-loaded TexGen modes modified the texture matrix,
// then if either state changed, we have to change both of them now.
if (_tex_gen_modifies_mat) {
_state_mask.clear_bit(tex_gen_slot);
_state_mask.clear_bit(tex_matrix_slot);
}
}
int tex_matrix_slot = TexMatrixAttrib::get_class_slot();
if (_target_rs->get_attrib(tex_matrix_slot) != _state_rs->get_attrib(tex_matrix_slot) ||
!_state_mask.get_bit(tex_matrix_slot)) {
// PStatGPUTimer timer(this, _draw_set_state_tex_matrix_pcollector);
@ -11679,11 +11689,15 @@ set_state_and_transform(const RenderState *target,
_current_shader_context->issue_parameters(Shader::SSD_tex_matrix);
}
#endif
// See previous occurrence of this check.
if (_tex_gen_modifies_mat) {
_state_mask.clear_bit(tex_gen_slot);
}
}
#ifdef SUPPORT_FIXED_FUNCTION
if (has_fixed_function_pipeline()) {
int tex_gen_slot = TexGenAttrib::get_class_slot();
if (_target_tex_gen != _state_tex_gen ||
!_state_mask.get_bit(tex_gen_slot)) {
// PStatGPUTimer timer(this, _draw_set_state_tex_gen_pcollector);