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Fix circular reference in shader context preventing shader states from being cleared

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This commit is contained in:
rdb 2015-11-28 17:52:03 +01:00
parent bdf91e206d
commit 1628238222
4 changed files with 78 additions and 76 deletions
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11
panda/src/glstuff/glCgShaderContext_src.cxx
View File

@ -424,11 +424,13 @@ set_state_and_transform(const RenderState *target_rs,
altered |= Shader::SSD_projection;
}
if (_state_rs != target_rs) {
if (_state_rs == NULL) {
// We haven't set any state yet.
if (_state_rs.was_deleted() || _state_rs == (const RenderState *)NULL) {
// Reset all of the state.
altered |= Shader::SSD_general;
} else {
_state_rs = target_rs;
} else if (_state_rs != target_rs) {
// The state has changed since last time.
if (_state_rs->get_attrib(ColorAttrib::get_class_slot()) !=
target_rs->get_attrib(ColorAttrib::get_class_slot())) {
altered |= Shader::SSD_color;
@ -461,7 +463,6 @@ set_state_and_transform(const RenderState *target_rs,
target_rs->get_attrib(TexMatrixAttrib::get_class_slot())) {
altered |= Shader::SSD_tex_matrix;
}
}
_state_rs = target_rs;
}

2
panda/src/glstuff/glCgShaderContext_src.h
View File

@ -77,7 +77,7 @@ private:
pvector<CGparameter> _cg_parameter_map;
CPT(RenderState) _state_rs;
WCPT(RenderState) _state_rs;
CPT(TransformState) _modelview_transform;
CPT(TransformState) _projection_transform;
GLint _frame_number;

11
panda/src/glstuff/glShaderContext_src.cxx
View File

@ -1613,11 +1613,13 @@ set_state_and_transform(const RenderState *target_rs,
altered |= Shader::SSD_projection;
}
if (_state_rs != target_rs) {
if (_state_rs == NULL) {
// We haven't set any state yet.
if (_state_rs.was_deleted() || _state_rs == (const RenderState *)NULL) {
// Reset all of the state.
altered |= Shader::SSD_general;
} else {
_state_rs = target_rs;
} else if (_state_rs != target_rs) {
// The state has changed since last time.
if (_state_rs->get_attrib(ColorAttrib::get_class_slot()) !=
target_rs->get_attrib(ColorAttrib::get_class_slot())) {
altered |= Shader::SSD_color;
@ -1650,7 +1652,6 @@ set_state_and_transform(const RenderState *target_rs,
target_rs->get_attrib(TexMatrixAttrib::get_class_slot())) {
altered |= Shader::SSD_tex_matrix;
}
}
_state_rs = target_rs;
}

2
panda/src/glstuff/glShaderContext_src.h
View File

@ -69,7 +69,7 @@ private:
typedef pvector<GLuint> GLSLShaders;
GLSLShaders _glsl_shaders;
CPT(RenderState) _state_rs;
WCPT(RenderState) _state_rs;
CPT(TransformState) _modelview_transform;
CPT(TransformState) _projection_transform;