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fix scissoring during the DisplayRegion's glClear() operation

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This commit is contained in:
David Rose 2014-10-16 00:57:21 +00:00
parent 1bf3738124
commit 9f896821e7
1 changed files with 47 additions and 1 deletions
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48
panda/src/glstuff/glGraphicsStateGuardian_src.cxx
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@ -2429,9 +2429,17 @@ prepare_display_region(DisplayRegionPipelineReader *dr) {
set_draw_buffer(_draw_buffer_type);
if (dr->get_scissor_enabled()) {
if (GLCAT.is_spam()) {
GLCAT.spam()
<< "glEnable(GL_SCISSOR_TEST)\n";
}
glEnable(GL_SCISSOR_TEST);
_scissor_enabled = true;
} else {
if (GLCAT.is_spam()) {
GLCAT.spam()
<< "glDisable(GL_SCISSOR_TEST)\n";
}
glDisable(GL_SCISSOR_TEST);
_scissor_enabled = false;
}
@ -2455,6 +2463,24 @@ prepare_display_region(DisplayRegionPipelineReader *dr) {
if (dr->get_scissor_enabled()) {
_glScissorArrayv(0, count, scissors);
}
if (GLCAT.is_spam()) {
GLCAT.spam()
<< "glViewportArrayv(0, " << count << ", [\n";
for (int i = 0; i < count; ++i) {
GLfloat *vr = viewports + i * 4;
GLCAT.spam(false) << vr[0] << ", " << vr[1] << ", " << vr[2] << ", " << vr[3] << ",\n";
}
GLCAT.spam(false) << "])\n";
if (dr->get_scissor_enabled()) {
GLCAT.spam()
<< "glScissorArrayv(0, " << count << ", [\n";
for (int i = 0; i < count; ++i) {
GLint *sr = scissors + i * 4;
GLCAT.spam(false) << sr[0] << ", " << sr[1] << ", " << sr[2] << ", " << sr[3] << ",\n";
}
}
GLCAT.spam(false) << "])\n";
}
} else
#endif // OPENGLES
@ -2463,6 +2489,14 @@ prepare_display_region(DisplayRegionPipelineReader *dr) {
if (dr->get_scissor_enabled()) {
glScissor(x, y, width, height);
}
if (GLCAT.is_spam()) {
GLCAT.spam()
<< "glViewport(" << x << ", " << y << ", " << width << ", " << height << ")\n";
if (dr->get_scissor_enabled()) {
GLCAT.spam()
<< "glScissor(" << x << ", " << y << ", " << width << ", " << height << ")\n";
}
}
}
report_my_gl_errors();
@ -11676,13 +11710,21 @@ void CLP(GraphicsStateGuardian)::
do_issue_scissor() {
const ScissorAttrib *target_scissor = DCAST(ScissorAttrib, _target_rs->get_attrib_def(ScissorAttrib::get_class_slot()));
if (target_scissor->is_off()) {
if (target_scissor->is_off() && !_current_display_region->get_scissor_enabled()) {
if (_scissor_enabled) {
if (GLCAT.is_spam()) {
GLCAT.spam()
<< "glDisable(GL_SCISSOR_TEST)\n";
}
glDisable(GL_SCISSOR_TEST);
_scissor_enabled = false;
}
} else {
if (!_scissor_enabled) {
if (GLCAT.is_spam()) {
GLCAT.spam()
<< "glEnable(GL_SCISSOR_TEST)\n";
}
glEnable(GL_SCISSOR_TEST);
_scissor_enabled = true;
}
@ -11694,6 +11736,10 @@ do_issue_scissor() {
int width = (int)(_viewport_width * (frame[1] - frame[0]) + 0.5f);
int height = (int)(_viewport_height * (frame[3] - frame[2]) + 0.5f);
if (GLCAT.is_spam()) {
GLCAT.spam()
<< "glScissor(" << x << ", " << y << ", " << width << ", " << height << ")\n";
}
glScissor(x, y, width, height);
}
}