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fix particle explosion

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This commit is contained in:
David Rose 2005-12-07 21:43:01 +00:00
parent 6148912b62
commit d48584de2f
1 changed files with 9 additions and 4 deletions
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13
panda/src/dxgsg8/dxGraphicsStateGuardian8.cxx
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@ -2172,6 +2172,7 @@ set_state_and_transform(const RenderState *target,
}
if (_target._tex_matrix != _state._tex_matrix) {
_state._texture = 0;
_state._tex_matrix = _target._tex_matrix;
}
@ -3769,14 +3770,17 @@ draw_indexed_primitive_up(D3DPRIMITIVETYPE primitive_type,
const unsigned char *buffer_start = buffer + stride * min_index;
const unsigned char *buffer_end = buffer + stride * (max_index + 1);
if (buffer_end - buffer_start > 0x10000) {
bool is_mickey = (_vertex_data->get_name() == "mickey");
is_mickey = false;
if (buffer_end - buffer > 0x10000) {
// Actually, the buffer doesn't fit within the required limit
// anyway. Go ahead and draw it and hope for the best.
_d3d_device->DrawIndexedPrimitiveUP
(primitive_type, min_index, max_index - min_index + 1, num_primitives,
index_data, index_type, buffer, stride);
} else if ((((long)buffer_end ^ (long)buffer_start) & ~0xffff) == 0) {
} else if ((((long)buffer_end ^ (long)buffer) & ~0xffff) == 0) {
// No problem; we can draw the buffer directly.
_d3d_device->DrawIndexedPrimitiveUP
(primitive_type, min_index, max_index - min_index + 1, num_primitives,
@ -3787,9 +3791,10 @@ draw_indexed_primitive_up(D3DPRIMITIVETYPE primitive_type,
// We have to copy the buffer to a temporary buffer that we can
// draw from.
unsigned char *safe_buffer_start = get_safe_buffer_start();
memcpy(safe_buffer_start, buffer_start, buffer_end - buffer_start);
size_t offset = buffer_start - buffer;
memcpy(safe_buffer_start + offset, buffer_start, buffer_end - buffer_start);
_d3d_device->DrawIndexedPrimitiveUP
(primitive_type, min_index, max_index - min_index + 1, num_primitives,
index_data, index_type, safe_buffer_start - stride * min_index, stride);
index_data, index_type, safe_buffer_start, stride);
}
}